/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

:root {
    /* 颜色变量 - 更大气的配色方案 */
    --primary-color: #3e6ae1;
    --secondary-color: #3355b0;
    --accent-color: #FFC107;
    --success-color: #3e6ae1;
    --warning-color: #FF9800;
    --dark-bg: #0D1117;
    --dark-secondary: #161B22;
    --dark-tertiary: #21262D;
    --dark-card: #30363D;
    --text-primary: #F0F6FC;
    --text-secondary: #ffffff;
    --text-muted: #6E7681;
    --border-color: #30363D;
    --gradient-primary: #3e6ae1;
    --gradient-secondary: linear-gradient(135deg, #FFC107 0%, #FF9800 100%);
    --gradient-dark: linear-gradient(135deg, #0D1117 0%, #161B22 100%);
    --gradient-card: linear-gradient(135deg, #21262D 0%, #30363D 100%);
    --gao: linear-gradient(135deg, #00E5FF 0%, #1976D2 100%);

    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* 阴影 */
    --shadow-small: 0 2px 10px rgba(0, 42, 92, 0.15);
    --shadow-medium: 0 8px 10px rgba(0, 42, 92, 0.2);
    --shadow-large: 0 20px 40px rgba(0, 42, 92, 0.25);
    --shadow-glow: 0 0 40px rgba(0, 42, 92, 0.3);

    /* 动画 */
    --transition-fast: 0.2s ease-out;
    --transition-medium: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

body {
    font-family: var(--font-primary);
    background: #000000;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: var(--transition-medium);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1rem;
}

.nav-logo img {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
    position: relative;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
    pointer-events: auto;
    display: block;
}

/* 语言选择器样式 */
.language-selector {
    position: relative;
    display: flex;
    align-items: center;
    margin-left: 1rem;
}

.current-language {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition-fast);
    min-width: 120px;
    justify-content: space-between;
}

.current-language:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
}

.flag-icon {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    object-fit: cover;
}



.language-text {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

#language-arrow {
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.language-selector.active #language-arrow {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(15, 15, 20, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0.5rem 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: 1001;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.language-selector.active .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    color: var(--text-secondary);
}

.language-option:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.language-option.active {
    background: rgba(0, 229, 255, 0.1);
    color: var(--primary-color);
}

.language-option span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: #000;
    will-change: auto;
}

/* Video Background Wrapper */
.hero-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    /* Prevent video extraction by containing it */
    contain: layout style paint;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    isolation: isolate;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* Hero Video Styles */
.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
    pointer-events: none;

    /* Prevent video from being extracted - Enhanced */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;

    /* Disable right-click and long-press */
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;

    /* Force inline display to prevent full-screen extraction */
    display: block !important;

    /* Prevent media controls from showing */
    -webkit-media-controls: none;
    -webkit-media-controls-panel: none;
    -webkit-media-controls-play-button: none;
    -webkit-media-controls-start-playback-button: none;

    /* Additional QQ/WeChat browser specific fixes */
    -webkit-playsinline: true;
    object-position: center center;
}

/* Video Overlay - darkens video for better text readability */
.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    z-index: 1;
}

/* Ensure content is above video */
.hero .container {
    position: relative;
    z-index: 2;
}

/* ====================================
   Vision & Innovation Showcase Section
   ==================================== */
.vision-showcase {
    padding: 6rem 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.vision-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #3e6ae1, transparent);
}

.vision-showcase::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #3e6ae1, transparent);
}

/* Megafactory 视频介绍（Hero 与 Vision 之间） */
.megafactory-intro {
    padding: 5rem 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.megafactory-intro::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 229, 255, 0.06), transparent 55%);
    pointer-events: none;
}

.megafactory-intro .container {
    position: relative;
    z-index: 1;
}

.megafactory-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: center;
}

.megafactory-intro-video-wrap {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(0, 229, 255, 0.25);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.45),
        0 0 40px rgba(0, 229, 255, 0.08);
    background: #000;
    aspect-ratio: 16 / 9;
    contain: layout style paint;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    isolation: isolate;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.megafactory-intro-video {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 100%;
    object-fit: cover;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
}

.megafactory-intro-heading {
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 1.25rem;
}

.megafactory-intro-text {
    color: rgba(0, 0, 0, 0.88);
    font-size: 1.05rem;
    line-height: 1.75;
    margin: 0 0 1.75rem;
    max-width: 38rem;
}

.megafactory-intro-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

/* Quote Card */
.vision-quote-card {
    max-width: 1000px;
    margin: 0 auto 4rem;
    background:rgba(117, 113, 113, 0.08);
    border: 1px solid #3e6ae1;
    border-radius: 20px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    /* box-shadow: 0 10px 40px rgba(0, 229, 255, 0.1); */
    transition: all 0.4s ease;
}

/* .vision-quote-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.05) 0%, transparent 70%);
    animation: rotateGlow 20s linear infinite;
} */

@keyframes rotateGlow {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.vision-quote-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 229, 255, 0.2);
    border-color: rgba(0, 229, 255, 0.4);
}

/* 头像 + 引言横向布局（窄屏纵向堆叠） */
.vision-quote-layout {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.vision-quote-avatar-wrap {
    flex-shrink: 0;
}

.vision-quote-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #3e6ae1;
    display: block;
}

.vision-quote-layout .vision-quote {
    flex: 1;
    min-width: 0;
}

.vision-quote-layout .vision-quote p {
    text-align: left;
}

.vision-quote-layout .vision-quote footer {
    align-items: flex-start;
}

.quote-icon {
    position: absolute;
    top: 2rem;
    right: 2rem;
    left: auto;
    font-size: 3rem;
    color: #3e6ae1;
    z-index: 1;
}

.vision-quote {
    position: relative;
    z-index: 2;
    margin: 0;
}

.vision-quote p {
    font-size: 1.5rem;
    line-height: 1.8;
    color: #000000;
    font-style: italic;
    margin-bottom: 1.5rem;
    text-align: center;
}

.vision-quote footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.vision-quote footer .gradient-text {
    font-size: 1.2rem;
    font-weight: 700;
}

.quote-role {
    color: #000000;
    font-size: 0.8rem;
}

/* Content Grid */
.vision-content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.vision-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.vision-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.05), rgba(25, 118, 210, 0.05));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.vision-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 229, 255, 0.4);
    box-shadow: 0 15px 40px rgba(0, 229, 255, 0.2);
}

.vision-card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
}

.card-body {
    padding: 0;
    position: relative;
}

/* Tweet Card */
.tweet-card .tweet-image {
    width: 100%;
    height: auto;
    display: block;
    cursor: zoom-in;
    transition: all 0.3s ease;
}

.tweet-card .tweet-image:hover {
    filter: brightness(1.1);
}

/* Stats Row */
.vision-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.05), rgba(25, 118, 210, 0.05));
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 229, 255, 0.4);
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.15);
}

.stat-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(25, 118, 210, 0.2));
    border-radius: 12px;
    flex-shrink: 0;
}

.stat-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 0.5rem 0;
    background: linear-gradient(90deg, #00e5ff, #1976d2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-info p {
    font-size: 0.95rem;
    color: #aaa;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 968px) {
    .vision-content-grid {
        grid-template-columns: 1fr;
    }

    .vision-stats {
        grid-template-columns: 1fr;
    }

    .megafactory-intro {
        padding: 3.5rem 0;
    }

    .megafactory-intro-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .megafactory-intro-copy {
        text-align: center;
    }

    .megafactory-intro-text {
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    .vision-showcase {
        padding: 4rem 0;
    }

    .vision-quote-card {
        padding: 2rem 1.5rem;
        margin-bottom: 3rem;
    }

    .vision-quote-layout {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .vision-quote-avatar {
        width: 112px;
        height: 112px;
    }

    .vision-quote-layout .vision-quote p {
        text-align: center;
    }

    .vision-quote-layout .vision-quote footer {
        align-items: center;
    }

    .quote-icon {
        font-size: 2rem;
        top: 1rem;
        right: 1rem;
        left: auto;
    }

    .vision-quote p {
        font-size: 1rem;
    }

    .vision-quote footer .gradient-text {
        font-size: 1rem;
    }

    /* vision-showcase 统计条：移动端横向滑动 */
    #vision-showcase .vision-stats {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 1rem;
        overflow-x: auto;
        overflow-y: visible;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 0 16px 12px;
        width: auto;
        max-width: none;
        grid-template-columns: unset;
        touch-action: pan-x;
        scrollbar-width: thin;
        scrollbar-color: rgba(0, 229, 255, 0.35) transparent;
    }

    #vision-showcase .vision-stats::-webkit-scrollbar {
        height: 4px;
    }

    #vision-showcase .vision-stats::-webkit-scrollbar-thumb {
        background: rgba(0, 229, 255, 0.45);
        border-radius: 4px;
    }

    #vision-showcase .vision-stats .stat-item {
        flex: 0 0 min(280px, 85vw);
        width: min(280px, 85vw);
        max-width: min(280px, 85vw);
        scroll-snap-align: center;
        margin: 0;
        box-sizing: border-box;
    }

    #vision-showcase .vision-stats .stat-item:hover {
        transform: none;
        box-shadow: none;
    }

    .card-header {
        padding: 1rem;
    }

    .card-header h3 {
        font-size: 1rem;
    }

    .stat-item {
        padding: 1.5rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
    }

    .stat-icon i {
        font-size: 1.5rem;
    }

    .stat-info h3 {
        font-size: 1.5rem;
    }
}



.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 2rem 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.subtitle {
    font-size: 1.5rem;
    color: #fff;
    font-weight: 400;
    display: block;
    margin-top: 0.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: #fff;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-quote {
    background: rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.hero-quote i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.hero-quote p {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.hero-quote span {
    color: #006bff;
    font-size: 0.9rem;

}

/* 马斯克推特截图样式 */
.musk-tweet {
    margin: 2rem 0;
    text-align: center;
    background: rgba(0, 229, 255, 0.05);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid rgba(0, 229, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: var(--transition-medium);
}

.musk-tweet:hover {
    background: rgba(0, 229, 255, 0.08);
    border-color: rgba(0, 229, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.tweet-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: var(--transition-medium);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tweet-image:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 48px rgba(0, 229, 255, 0.2);
}

.tweet-caption {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-medium);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.btn-outline {
    background: #000000;
    color: #ffffff;
    border: 1px solid #000000;
}

.btn-outline:hover {
    /* background: var(--primary-color); */
    color: rgb(0, 0, 0);
}

.pulse-btn {
    animation: pulse 2s infinite;
    position: relative;
    overflow: hidden;
}

.pulse-btn:hover {
    animation-play-state: paused;
    transform: scale(1.05);
}

.pulse-btn:active {
    transform: scale(0.98);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(0, 212, 255, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 212, 255, 0);
    }
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-large);
}

.floating-stats {
    position: absolute;
    top: 50%;
    right: -50px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-card {
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(20px);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.stat-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 通用区域样式 */
section {
    padding: 2rem 0;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    box-sizing: border-box;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    color: #00e5ff;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #00e5ff;
}

/* 项目愿景 */
.vision {
    /* 设置背景图片，图片路径为stc/a-photograph.png，背景居中且覆盖整个区域 */
    background: url('/stc/275d.webp') center center/cover no-repeat;
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.vision-card {
    background: #00000066;
    /* 灰色半透明背景 */
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-medium);
    border: 1px solid var(--border-color);
}

.vision-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.vision-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.vision-card p {
    color: #ffffff;
    line-height: 1.6;
}

/* 技术革新 */
.technology {
    background: #ffffff;
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.tech-section {
    margin-bottom: 3rem;
}

.tech-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #000000;
}

.tech-features {
    list-style: none;
}

.tech-features li {
    padding: 0.8rem 0;
    padding-left: 2rem;
    position: relative;
    color: #000000;
    line-height: 1.6;
}

.tech-features li::before {
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.tech-features strong {
    color: #000000;
}

.tech-visual {
    position: relative;
}

.tech-visual img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-large);
}

.tech-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(0, 212, 255, 0.1));
    border-radius: 16px;
}

/* 技术区：右侧视频列 */
.tech-right {
    min-width: 0;
}

/* 约束技术区视频在布局盒内，避免 WebView 把视频层抬到页面外 */
.tech-hero-video-wrap {
    width: 100%;
    max-width: 100%;
    border-radius: 20px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 9;
    contain: layout style paint;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    isolation: isolate;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.tech-hero-video {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 0;
    opacity: 0.8;
    transition: opacity 0.35s ease;
    object-fit: cover;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
}

.tech-video-fallback {
    width: 100%;
    min-height: 280px;
    background: linear-gradient(135deg, #00e5ff 0%, #1976d2 100%);
    border-radius: 20px;
}

/* 移动端「查看详情」按钮默认隐藏，由 max-width:768 开启 */
.tech-mobile-open-btn {
    display: none;
}

/* 宽屏：左文右视频，略加栏宽比 */
@media (min-width: 1025px) {
    .technology .tech-content {
        grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
        gap: 3.5rem;
        align-items: start;
    }

    .technology .tech-right {
        position: sticky;
        top: 5.5rem;
    }
}

.technology-modal-content {
    max-width: 540px;
    width: 100%;
}

.technology-section-modal .tech-features-modal li {
    text-align: left;
}

/* 代币经济学 */
.tokenomics {
    background: url('/stc/664.webp') center center/cover no-repeat;
}

.tokenomics-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.chart-container {
    position: relative;
    height: 400px;
}

.distribution-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-tertiary);
    border-radius: 12px;
    overflow: hidden;
    table-layout: fixed;
}

/* 确保表格容器不超出屏幕 */
.tokenomics-table {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 1rem;
}

.distribution-table th,
.distribution-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.distribution-table th {
    background: var(--dark-bg);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.8rem;
}

.distribution-table tr:hover {
    background: rgba(0, 212, 255, 0.05);
}

.token-utility {
    margin-top: 4rem;
}

.token-utility h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.utility-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.utility-card {
    background: #00000066;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-medium);
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.utility-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
}

.utility-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.utility-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.utility-card p {
    color: #fffdfd;
    font-size: 0.8rem;
    line-height: 1.6;
}

/* 空投计划 */
.airdrop {
    background: #000000;

}

.airdrop-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.airdrop-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin: 3rem 0;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
    margin-left: 0;
    text-align: right;
    padding-right: 3rem;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
    text-align: left;
    padding-left: 3rem;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 2;
}

.timeline-content {
    width: 45%;
    position: relative;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    overflow: hidden;
    background: rgba(22, 27, 34, 0.8);
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.timeline-item:nth-child(1) .timeline-content::before {
    background-image: url('/stc/im/a-p.webp');
}

.timeline-item:nth-child(2) .timeline-content::before {
    background-image: url('/stc/im/a-ph.webp');
}

.timeline-item:nth-child(3) .timeline-content::before {
    background-image: url('/stc/im/a-photograph.webp');
}


.timeline-content:hover::before {
    opacity: 0.25;
}

.timeline-content>* {
    position: relative;
    z-index: 1;
}

.timeline-content h3 {
    color: var(--primary-color);
    font-size: 1.0rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.airdrop-details p {
    margin-bottom: 0.8rem;
    color: #fff;
    font-size: 0.9rem;
    line-height: 1.6;
}

.airdrop-details strong {
    color: var(--text-primary);
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.airdrop-conditions {
    margin-top: 1.5rem;
}

.condition {
    background: rgba(0, 229, 255, 0.08);
    padding: 0.8rem 1.2rem;
    margin: 0.8rem 0;
    border-radius: 12px;
    font-size: 0.95rem;
    border: 1px solid rgba(0, 229, 255, 0.15);
    transition: var(--transition-medium);
    backdrop-filter: blur(5px);
}

.condition:hover {
    background: rgba(0, 229, 255, 0.12);
    border-color: rgba(0, 229, 255, 0.25);
    transform: translateX(5px);
}

/* 空投操作按钮 */
.airdrop-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 229, 255, 0.15);
    position: relative;
    z-index: 2;
}

.airdrop-btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 12px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.3);
}

.airdrop-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.4);
}

.airdrop-status {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    background: rgba(22, 27, 34, 0.6);
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

.status-label {
    color: #fff;
    font-size: 0.8rem;
}

.status-active {
    color: var(--success-color);
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.status-active::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-upcoming {
    color: var(--warning-color);
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.status-upcoming::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--warning-color);
    border-radius: 50%;
}

/* 空投统计面板 */
.airdrop-stats {
    margin-top: 4rem;
    background: url('/stc/53eec7e7-e5c7-4e2f-8c3f-9bdcbe493433.webp') center center/cover no-repeat;
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #00000066;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.stat-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
}

.stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: white;
}

.stat-content h4 {
    font-size: 0.8rem;
    color: #fff7f7;
    margin-bottom: 0.5rem;
}

.stat-number {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-content small {
    color: #fff7f7;
    font-size: 0.8rem;
}

.airdrop-progress {
    background: #00000066;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-weight: 600;
}

.progress-details {
    text-align: center;
    margin-top: 0.5rem;
}

.progress-details small {
    color: #fff9f9;
}

/* 空投查询 */
.airdrop-query {
    margin-top: 3rem;
    text-align: center;
}

.airdrop-query h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.query-form {
    max-width: 500px;
    margin: 0 auto;
}

.query-form .input-group {
    display: flex;
    gap: 1rem;
    align-items: stretch;
}

.query-input {
    flex: 1;
    padding: 1rem;
    background: var(--dark-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.query-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.query-result {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--dark-tertiary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.loading-spinner {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1rem;
}

.query-success,
.query-no-result {
    text-align: center;
}

.result-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.query-success h4,
.query-no-result h4 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.query-no-result p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.result-details {
    background: var(--dark-bg);
    padding: 1.5rem;
    border-radius: 12px;
    margin: 2rem 0;
    text-align: left;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item span:first-child {
    color: var(--text-secondary);
}

.result-item span:last-child {
    color: var(--text-primary);
    font-weight: 600;
}

.reward-amount {
    color: var(--primary-color) !important;
    font-size: 1.1rem !important;
}

.status-pending {
    color: var(--warning-color) !important;
}

.status-approved {
    color: var(--success-color) !important;
}

.claim-btn {
    margin-top: 1rem;
    padding: 1rem 2rem;
}

/* 预售详情 */
.presale {
    /* 设置背景图片，图片路径为 /stc/123.webp，居中且覆盖整个区域 */
    background: url('/stc/3430.webp') center center/cover no-repeat;
}

.presale .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 桌面端：预售三卡横向一排等分（≤768px 由下方 #presale .presale-rounds 覆盖为滑动+3D） */
.presale-rounds {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: stretch;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 4rem;
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.presale-rounds .presale-card {
    flex: 1 1 0;
    min-width: 0;
}

.presale-card {
    background: #00000066;
    border-radius: 20px;
    padding: 2rem;
    border: 2px solid transparent;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.presale-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.4;
    z-index: 0;
    transition: var(--transition-medium);
    border-radius: 20px;
}

.presale-card:hover::before {
    opacity: 0.6;
    transform: scale(1.05);
}

.presale-card.active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-large);
}

.presale-card.sold-out {
    opacity: 0.6;
}

.presale-card.sold-out::before {
    background-image: url('/stc/im/8XpPVg.webp');
    background-position: center;
    background-size: cover;
}

.presale-card.active::before {
    background-image: url('/stc/im/eUUol3BZXg.webp');
    background-position: center;
    background-size: cover;
}

.presale-card.upcoming {
    border-color: var(--accent-color);
}

.presale-card.upcoming::before {
    background-image: url('/stc/im/of.webp');
    background-position: center;
    background-size: cover;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
    background: rgba(13, 17, 23, 0.4);
    backdrop-filter: blur(10px);
    padding: 1rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 229, 255, 0.1);
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-content {
    position: relative;
    z-index: 2;
    background: rgba(13, 17, 23, 0.6);
    backdrop-filter: blur(15px);
    border-radius: 16px;
    padding: 1.5rem;
    margin-top: 1rem;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.status {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.presale-card.active .status {
    background: var(--primary-color);
    color: white;
}

.presale-card.sold-out .status {
    background: var(--text-secondary);
    color: white;
}

.presale-card.upcoming .status {
    background: var(--accent-color);
    color: white;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.details p {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.details strong {
    color: var(--text-primary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--dark-bg);
    border-radius: 4px;
    margin: 1rem 0;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: var(--gradient-primary);
    transition: width 1s ease-out;
}

.progress-text {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.time-unit {
    text-align: center;
    background: rgba(13, 17, 23, 0.4);
    padding: 1rem;
    border-radius: 12px;
    min-width: 60px;
}

.time-unit span {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.time-unit label {
    font-size: 0.8rem;
    color: #ffffff;
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.payment-methods {
    text-align: center;
}

.payment-methods h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #00e5ff;
}

.payment-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.payment-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.payment-item:hover {
    transform: translateY(-3px);
}

.payment-item img {
    width: 60px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
    transition: var(--transition-fast);
    background: rgba(255, 255, 255, 0.1);
    padding: 4px;
}

.payment-item:hover img {
    box-shadow: var(--shadow-medium);
}

.payment-item span {
    font-size: 1rem;
    color: #000000;
    font-weight: 600;
}

.payment-item {
    cursor: pointer;
    transition: var(--transition-medium);
    position: relative;
}

.payment-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.payment-item.selected {
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.price-info {
    margin-top: 0.5rem;
}

.price-info small {
    font-size: 0.75rem;
    color: #ffffff;
    display: block;
}

/* 路线图 */
.roadmap {
    background: #000000;
}

.roadmap-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.roadmap-item {
    position: relative;
    margin: 3rem 0;
    padding-left: 80px;
}

.roadmap-marker {
    position: absolute;
    left: 15px;
    top: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    z-index: 2;
}

.roadmap-item.completed .roadmap-marker {
    background: var(--primary-color);
    color: white;
}

.roadmap-item.current .roadmap-marker {
    background: var(--accent-color);
    color: white;
    animation: pulse 2s infinite;
}

.roadmap-item.upcoming .roadmap-marker {
    background: var(--text-secondary);
    color: white;
}

.roadmap-content {
    background: var(--dark-secondary);
    padding: 2rem;
    border-radius: 16px;
    border-left: 4px solid transparent;
}

.roadmap-item.completed .roadmap-content {
    border-left-color: var(--primary-color);
}

.roadmap-item.current .roadmap-content {
    border-left-color: var(--accent-color);
}

.roadmap-item.upcoming .roadmap-content {
    border-left-color: var(--text-secondary);
}

.roadmap-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.roadmap-content ul {
    list-style: none;
}

.roadmap-content li {
    padding: 0.5rem 0;
    color: #fff;
}

/* 合作伙伴 */
.partners {
    background: url('/stc/53eec7e7-e5c7-4e2f-8c3f-9bdcbe493433.webp') center center/cover no-repeat;
}

.partners-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.partner-category h3 {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 0rem;
    color: var(--primary-color);
}

.partner-logos {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    overflow: hidden;
    position: relative;
}

.partner-logo {
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.partner-logo:hover {
    transform: translateY(-5px);
}

.partner-logo img {
    height: 40px;
    width: auto;
    max-width: 120px;
    border-radius: 8px;
    transition: var(--transition-fast);
    object-fit: contain;
}

.partner-logo:hover img {
    box-shadow: var(--shadow-medium);
}

/* 全局移动端防溢出 */
@media (max-width: 768px) {

    /* 强制所有元素不超出视口 */
    body,
    html {
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
        box-sizing: border-box !important;
    }

    /* 所有容器元素 */
    .container,
    section,
    div,
    main,
    article,
    aside,
    header,
    footer,
    nav {
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Mobile Video Optimization */
    .hero-video {
        /* On mobile, ensure video covers properly */
        min-width: 100%;
        min-height: 100vh;
        width: 100%;
        height: 100vh;
        object-fit: cover;
    }

}

/* 移动端无缝滚动样式 */
@media (max-width: 768px) {
    .partner-logos {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow: hidden;
        width: 100%;
        position: relative;
        padding: 1rem 0;
        mask: linear-gradient(90deg,
                transparent 0%,
                white 10%,
                white 90%,
                transparent 100%);
        -webkit-mask: linear-gradient(90deg,
                transparent 0%,
                white 10%,
                white 90%,
                transparent 100%);
    }

    .partner-logos-track {
        display: flex;
        gap: 3rem;
        animation-timing-function: linear;
        animation-iteration-count: infinite;
        white-space: nowrap;
        will-change: transform;
        align-items: center;
        min-width: fit-content;
    }

    /* 向右滚动（中间板块 - 能源行业伙伴），位移由 JS 设置 --marquee-distance 保证无缝 */
    .partner-category:nth-child(2) .partner-logos-track {
        animation-name: partnerMarqueeSeamlessRight;
        animation-duration: 30s;
    }

    /* 向左滚动（上下板块 - 战略投资和技术生态） */
    .partner-category:nth-child(1) .partner-logos-track,
    .partner-category:nth-child(3) .partner-logos-track {
        animation-name: partnerMarqueeSeamlessLeft;
        animation-duration: 35s;
    }

    .partner-logo {
        flex-shrink: 0;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.5rem 1rem;
        background: rgba(100, 100, 100, 0.6);
        border-radius: 12px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }

    .partner-logo:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: var(--primary-color);
        transform: translateY(-2px);
    }

    .partner-logo img {
        height: 32px;
        width: auto;
        max-width: 100px;
        min-width: 70px;
        object-fit: contain;
        filter: brightness(0.9);
        transition: filter 0.3s ease;
    }

    .partner-logo:hover img {
        filter: brightness(1.1);
    }

    /* 暂停动画当鼠标悬停时 */
    .partner-logos:hover .partner-logos-track {
        animation-play-state: paused;
    }

    /* 确保滚动更流畅 */
    .partner-category {
        position: relative;
    }

    .partner-category::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg,
                #00e5ff26 0%,
                transparent 100%);
        z-index: 2;
        pointer-events: none;
    }

    .partner-category::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg,
                transparent 0%,
                #00e5ff26 100%);
        z-index: 2;
        pointer-events: none;
    }

    @media (prefers-reduced-motion: reduce) {
        .partner-logos-track {
            animation: none !important;
            transform: none !important;
        }
    }
}

/* 合作伙伴无缝轮播：与两份克隆轨道配合，移动恰好一个循环宽度 */
@keyframes partnerMarqueeSeamlessLeft {
    from {
        transform: translate3d(0, 0, 0);
    }

    to {
        transform: translate3d(var(--marquee-distance, -50%), 0, 0);
    }
}

@keyframes partnerMarqueeSeamlessRight {
    from {
        transform: translate3d(var(--marquee-distance, -50%), 0, 0);
    }

    to {
        transform: translate3d(0, 0, 0);
    }
}

/* index2 #partners.partners-marquee：桌面端同样横向无缝轮播 */
#partners.partners-marquee .partner-logos {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow: hidden;
    width: 100%;
    position: relative;
    padding: 1rem 0;
    mask: linear-gradient(90deg,
            transparent 0%,
            white 8%,
            white 92%,
            transparent 100%);
    -webkit-mask: linear-gradient(90deg,
            transparent 0%,
            white 8%,
            white 92%,
            transparent 100%);
}

#partners.partners-marquee .partner-logos-track {
    display: flex;
    gap: 3rem;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    white-space: nowrap;
    will-change: transform;
    align-items: center;
    min-width: fit-content;
}

#partners.partners-marquee .partner-category:nth-child(2) .partner-logos-track {
    animation-name: partnerMarqueeSeamlessRight;
    animation-duration: 40s;
}

#partners.partners-marquee .partner-category:nth-child(1) .partner-logos-track,
#partners.partners-marquee .partner-category:nth-child(3) .partner-logos-track {
    animation-name: partnerMarqueeSeamlessLeft;
    animation-duration: 45s;
}

#partners.partners-marquee .partner-logo {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background: rgba(100, 100, 100, 0.2);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

#partners.partners-marquee .partner-logo:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

#partners.partners-marquee .partner-logo img {
    height: 36px;
    width: auto;
    max-width: 120px;
    min-width: 70px;
    object-fit: contain;
    filter: brightness(0.9);
    transition: filter 0.3s ease;
}

#partners.partners-marquee .partner-logo:hover img {
    filter: brightness(1.1);
}

#partners.partners-marquee .partner-logos:hover .partner-logos-track {
    animation-play-state: paused;
}

#partners.partners-marquee .partner-category {
    position: relative;
}

@media (min-width: 769px) {
    #partners.partners-marquee .partner-category::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg,
                #00e5ff26 0%,
                transparent 100%);
        z-index: 2;
        pointer-events: none;
    }

    #partners.partners-marquee .partner-category::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg,
                transparent 0%,
                #00e5ff26 100%);
        z-index: 2;
        pointer-events: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    #partners.partners-marquee .partner-logos-track {
        animation: none !important;
        transform: none !important;
    }
}

/* 社区 */
.community {
    background: var(--dark-bg);
}

.community-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.community-stats .stat-card {
    background: var(--dark-secondary);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: var(--transition-medium);
}

.community-stats .stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
}

.community-stats .stat-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.community-stats .stat-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.community-stats .stat-card p {
    color: var(--text-secondary);
}

.community-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.community-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-medium);
}

.community-btn.discord {
    background: #5865F2;
    color: white;
}

.community-btn.twitter {
    background: #1DA1F2;
    color: white;
}

.community-btn.telegram {
    background: #0088CC;
    color: white;
}

.community-btn.youtube {
    background: #FF0000;
    color: white;
}

.community-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* CTA 区域 */
.cta {
    background: url('/stc/im/WICuF2Fg.webp') center center/cover no-repeat;
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 700;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta .btn-primary {
    background: white;
    color: var(--primary-color);
}

.cta .btn-outline {
    border-color: white;
    color: white;
}

.cta .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

/* 页脚 */
.footer {
    background: var(--dark-bg);
    border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    justify-content: center;
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #fff;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--dark-secondary);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    color: var(--text-secondary);
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.disclaimer {
    margin-top: 1rem;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease-out;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 防止背景滚动 */
body.modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .modal {
        padding: 1rem;
        /* 确保模态框在移动端可以滚动 */
        -webkit-overflow-scrolling: touch;
    }

    .modal-content {
        max-height: 95vh;
        width: 95%;
        margin: 1rem auto;
        /* 移动端优化滚动 */
        -webkit-overflow-scrolling: touch;
    }

    body.modal-open {
        /* 移动端防止滚动穿透 */
        touch-action: none;
        -webkit-overflow-scrolling: auto;
        /* iOS Safari 兼容性 */
        position: fixed !important;
        overflow: hidden !important;
    }
}

/* 对于非常高的内容，确保可以滚动 */
.modal-body {
    max-height: calc(90vh - 120px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* 支付状态检查弹窗样式 */
.payment-status-check {
    text-align: center;
    padding: 1rem;
}

.status-section {
    padding: 2rem 0;
    transition: all 0.3s ease;
}

.status-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.status-icon.checking {
    color: var(--primary-color);
}

.status-icon.confirming {
    color: var(--accent-color);
}

.status-icon.success {
    color: var(--success-color);
}

.status-icon.failed {
    color: var(--warning-color);
}

.progress-indicator {
    margin: 2rem 0;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
    animation: progressShimmer 2s ease-in-out infinite;
}

@keyframes progressShimmer {
    0% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.6;
    }
}

.progress-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.confirmation-details {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    text-align: left;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-item span:first-child {
    color: var(--text-secondary);
    font-weight: 500;
}

.detail-item code {
    background: rgba(0, 229, 255, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
}

.auto-check-notice {
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 1rem;
    margin: 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.success-details {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--success-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.token-info,
.wallet-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(40, 167, 69, 0.2);
}

.wallet-info {
    border-bottom: none;
}

.token-info strong {
    color: var(--success-color);
    font-size: 1.2rem;
}

.wallet-info code {
    background: rgba(40, 167, 69, 0.2);
    color: var(--success-color);
}

.failure-reasons {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--warning-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    text-align: left;
}

.failure-reasons ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.failure-reasons li {
    padding: 0.5rem 0;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(220, 53, 69, 0.2);
}

.failure-reasons li:last-child {
    border-bottom: none;
}

.retry-notice {
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 1rem;
}

/* Smart Contract Notice */
.smart-contract-notice,
.wallet-display-notice {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(25, 118, 210, 0.08));
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    display: flex;
    gap: 1rem;
    text-align: left;
}

.smart-contract-notice .notice-icon,
.wallet-display-notice .notice-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 229, 255, 0.2);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.smart-contract-notice .notice-content,
.wallet-display-notice .notice-content {
    flex: 1;
}

.smart-contract-notice h4,
.wallet-display-notice h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin: 0 0 0.5rem 0;
    font-weight: 600;
}

.smart-contract-notice p,
.wallet-display-notice p {
    color: var(--text-primary);
    margin: 0.5rem 0;
    line-height: 1.6;
}

.wallet-display-notice {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.08), rgba(255, 152, 0, 0.08));
    border-color: rgba(255, 193, 7, 0.3);
}

.wallet-display-notice .notice-icon {
    background: rgba(255, 193, 7, 0.2);
    color: var(--accent-color);
}

.wallet-display-notice h4 {
    color: var(--accent-color);
}

.highlight-text {
    background: rgba(255, 193, 7, 0.1);
    border-left: 3px solid var(--accent-color);
    padding: 0.75rem 1rem;
    margin: 0.75rem 0 0 0 !important;
    border-radius: 8px;
    font-weight: 500;
}

.highlight-text i {
    color: var(--accent-color);
    margin-right: 0.5rem;
}

.highlight-text strong {
    color: var(--accent-color);
}

/* 按钮样式增强 */
.btn-secondary {
    background: rgba(108, 117, 125, 0.8);
    border: 1px solid #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: rgba(108, 117, 125, 1);
    border-color: #545b62;
}

/* 动画效果 */
.status-section {
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 移动端优化 */
@media (max-width: 768px) {

    .confirmation-details,
    .success-details,
    .failure-reasons {
        padding: 1rem;
        margin: 1rem 0;
    }

    .detail-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .detail-item code {
        word-break: break-all;
        width: 100%;
        text-align: center;
    }

    .status-icon {
        font-size: 3rem;
    }

    .auto-check-notice {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }

    /* 新增提示框移动端优化 */
    .smart-contract-notice,
    .wallet-display-notice {
        flex-direction: column;
        padding: 1rem;
        margin: 1rem 0;
        gap: 0.75rem;
    }

    .smart-contract-notice .notice-icon,
    .wallet-display-notice .notice-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        margin: 0 auto;
    }

    .smart-contract-notice h4,
    .wallet-display-notice h4 {
        font-size: 1rem;
        text-align: center;
    }

    .smart-contract-notice p,
    .wallet-display-notice p {
        font-size: 0.9rem;
    }

    .highlight-text {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .action-buttons {
        flex-direction: column;
        gap: 0.75rem;
    }

    .action-buttons .btn {
        width: 100%;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--gradient-card);
    border-radius: 20px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    overflow-x: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-large);
    animation: slideUp 0.3s ease-out;
    margin: 2rem auto;
    position: relative;
    -webkit-overflow-scrolling: touch;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
}

.close-btn {
    background: transparent;
    border: none;
    color: #888;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: rotate(90deg);
}

.close {
    color: var(--text-secondary);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-fast);
    line-height: 1;
}

.close:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

.modal-body {
    padding: 2rem;
}

.current-price {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 229, 255, 0.1);
    border-radius: 16px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.current-price h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.current-price span {
    color: var(--primary-color);
}

.price-note {
    color: #ffffff;
    font-size: 0.9rem;
}

/* Modal Countdown Styles */
.modal-countdown {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.08) 0%, rgba(25, 118, 210, 0.08) 100%);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    margin: 0.5rem 0;
    text-align: center;
}

.countdown-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

.countdown-header i {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.modal-countdown .countdown {
    margin: 0;
}

.payment-selection h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.payment-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--dark-tertiary);
    border-radius: 12px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-medium);
}

.payment-option:hover {
    border-color: var(--primary-color);
    background: rgba(0, 229, 255, 0.05);
}

.payment-option.selected {
    border-color: var(--primary-color);
    background: rgba(0, 229, 255, 0.1);
    box-shadow: var(--shadow-medium);
}

.payment-option img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px;
}

.payment-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.token-name {
    font-weight: 600;
    color: var(--text-primary);
}

.token-price {
    font-size: 0.9rem;
    color: var(--success-color);
}

.exchange-rate {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.purchase-form {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.purchase-form h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.selected-payment {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.selected-payment img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    padding: 2px;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.input-with-token {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-token input {
    flex: 1;
    padding: 1rem;
    padding-right: 4rem;
    background: var(--dark-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: var(--transition-fast);
}

.input-with-token input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.token-symbol {
    position: absolute;
    right: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    pointer-events: none;
}

.conversion-display {
    text-align: center;
    margin: 0.5rem 0;
    padding: 0.5rem;
    background: var(--dark-tertiary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.conversion-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.receive-amount span {
    color: #ffffff;
    font-size: 0.9rem;
}

.mega-amount {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

.bonus-info {
    margin-top: 0.5rem;
}

.bonus-info span {
    color: var(--success-color);
    font-weight: 600;
}

.bonus-info small {
    color: #ffffff;
    display: block;
    margin-top: 0.25rem;
}

.wallet-address {
    margin: 2rem 0;
}

.wallet-address label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.address-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.address-display code {
    flex: 1;
    padding: 0.8rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    word-break: break-all;
}

.copy-btn {
    padding: 0.8rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.copy-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

.address-note {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.purchase-summary {
    background: var(--dark-tertiary);
    padding: 1.5rem;
    border-radius: 12px;
    margin: 2rem 0;
    border: 1px solid var(--border-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.summary-row:last-child {
    margin-bottom: 0;
}

.summary-row.bonus {
    color: var(--success-color);
}

.summary-row.total {
    padding-top: 0.8rem;
    border-top: 1px solid var(--border-color);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-direction: column-reverse;
}

.action-buttons .btn {
    flex: 1;
}

/* 支付确认模态框 */
.payment-status {
    text-align: center;
}

.status-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    animation: pulse 2s infinite;
}

.payment-details-confirm {
    background: var(--dark-tertiary);
    padding: 1.5rem;
    border-radius: 12px;
    margin: 2rem 0;
    text-align: left;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    flex-direction: column;
}

.detail-row:last-child {
    margin-bottom: 0;
}

.detail-row strong {
    color: var(--text-primary);
}

.address-confirm {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    margin-left: 1rem;
}

.address-confirm code {
    flex: 1;
    padding: 0.5rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-primary);
    word-break: break-all;
}

.qr-code {
    margin: 2rem 0;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    background: var(--dark-tertiary);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.qr-placeholder i {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

/* QR码生成后的样式 */
.qr-code-generated {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 229, 255, 0.3);
    margin: 0 auto;
    max-width: 280px;
}

.qr-code-generated canvas,
.qr-code-generated img {
    border-radius: 8px;
    margin: 0 auto;
    display: block;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.qr-info {
    margin-top: 1rem;
    color: #333;
}

.qr-instruction {
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.qr-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.qr-details small {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.4;
    word-break: break-all;
}

.qr-fallback {
    background: rgba(220, 53, 69, 0.1);
    border: 2px dashed rgba(220, 53, 69, 0.3);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    color: var(--warning-color);
}

.qr-fallback .qr-placeholder {
    background: transparent;
    border: none;
    padding: 0;
    min-height: auto;
    width: auto;
    height: auto;
}

.qr-fallback i {
    color: var(--warning-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .qr-code-generated {
        padding: 1rem;
        max-width: 250px;
    }

    .qr-code-generated canvas,
    .qr-code-generated img {
        max-width: 180px;
        height: auto;
    }

    .qr-instruction {
        font-size: 0.9rem;
    }

    .qr-details small {
        font-size: 0.8rem;
    }
}

.payment-timer {
    margin: 2rem 0;
    padding: 1rem;
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid rgba(255, 152, 0, 0.3);
    border-radius: 8px;
    color: var(--warning-color);
}

/* 特斯拉积分支付样式 */
.tesla-payment-form {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(204, 0, 0, 0.1);
    border: 1px solid rgba(204, 0, 0, 0.3);
    border-radius: 12px;
}

.tesla-payment-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.tesla-balance {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(204, 0, 0, 0.1);
    border-radius: 8px;
    margin: 1rem 0;
}

.tesla-balance strong {
    color: #cc0000;
    font-size: 1.1rem;
}

.tesla-note {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

/* 特斯拉查询样式 */
.tesla-query-section {
    margin: 1.5rem 0;
    text-align: center;
}

.btn-tesla-query {
    background: linear-gradient(135deg, #cc0000, #ff3333);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-tesla-query:hover:not(:disabled) {
    background: linear-gradient(135deg, #990000, #cc0000);
    transform: translateY(-1px);
}

.btn-tesla-query:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.tesla-error {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: 8px;
    margin: 1rem 0;
    color: #dc3545;
    font-size: 0.9rem;
}

.tesla-error i {
    color: #dc3545;
}

/* 多链地址选择器样式 */
.chain-selector {
    margin: 1.5rem 0;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 12px;
}

.chain-selector label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.chain-options {
    display: grid;
    gap: 0.75rem;
}

.chain-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.chain-option:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(0, 229, 255, 0.3);
}

.chain-option.active {
    background: rgba(0, 229, 255, 0.1);
    border-color: var(--primary-color);
}

.chain-option img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 50%;
}

.chain-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.chain-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.chain-info small {
    color: var(--text-secondary);
    font-size: 0.8rem;
}



/* 空投模态框样式 */
.airdrop-modal-content {
    max-width: 700px;
    max-height: 90vh;
}

.airdrop-type-form {
    padding: 1rem 0;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.airdrop-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 表单步骤 */
.form-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.5;
    transition: var(--transition-medium);
}

.step.active {
    opacity: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--dark-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: var(--transition-medium);
}

.step.active .step-number {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
}

.step-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.step.active .step-text {
    color: var(--text-primary);
}

/* 产品选择 */
.product-selection h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.product-card {
    padding: 1.5rem;
    background: var(--dark-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-medium);
}

.product-card:hover {
    border-color: var(--primary-color);
    background: rgba(0, 229, 255, 0.05);
}

.product-card.selected {
    border-color: var(--primary-color);
    background: rgba(0, 229, 255, 0.1);
    box-shadow: var(--shadow-medium);
}

.product-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.product-card h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.reward-info {
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 文件上传 */
.verification-upload {
    margin-top: 2rem;
}

.verification-upload h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-medium);
    background: var(--dark-bg);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: rgba(0, 229, 255, 0.05);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.upload-area p {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-area small {
    color: var(--text-muted);
}

.upload-tips {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.05);
    border-radius: 8px;
    text-align: left;
}

.upload-tips p {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.upload-tips ul {
    list-style: none;
    padding-left: 1rem;
}

.upload-tips li {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
    position: relative;
}

.upload-tips li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: -1rem;
}

/* 申请摘要 */
.application-summary h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-item.highlight {
    background: rgba(0, 229, 255, 0.1);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(0, 229, 255, 0.2);
    font-weight: 600;
    color: var(--text-primary);
}

.summary-item.highlight span:last-child {
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* 条款同意 */
.terms-agreement {
    margin: 2rem 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    background: var(--dark-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    transition: var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked+.checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked+.checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

/* 加密社区验证 */
.crypto-verification {
    text-align: center;
}

.verification-section {
    margin-bottom: 2rem;
}

.verification-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.wallet-connect-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0 auto;
    padding: 1rem 2rem;
    font-size: 1rem;
}

.wallet-info {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.connected-wallet {
    color: var(--text-primary);
    font-size: 0.9rem;
}

.connected-wallet code {
    background: var(--dark-bg);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

.eligibility-check h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.check-results {
    text-align: left;
}

.check-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    margin-bottom: 1rem;
    background: var(--dark-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.check-item.highlight {
    background: rgba(0, 229, 255, 0.1);
    border-color: var(--primary-color);
}

.check-label {
    color: var(--text-secondary);
}

.check-value {
    color: var(--text-primary);
    font-weight: 600;
}

.check-item.highlight .check-value {
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* 即将开放样式 */
.coming-soon {
    text-align: center;
    padding: 3rem 2rem;
}

.coming-soon-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--warning-color);
}

.coming-soon h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.coming-soon p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.notify-signup {
    display: flex;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.notify-signup input {
    flex: 1;
    padding: 1rem;
    background: var(--dark-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
}

.notify-signup input:focus {
    outline: none;
    border-color: var(--warning-color);
    box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.1);
}

/* 加密社区空投表单样式 */
.crypto-airdrop-form {
    padding: 2rem 0;
}

.wallet-input {
    width: 100%;
    padding: 1rem;
    background: var(--dark-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
    font-family: 'Courier New', monospace;
}

.wallet-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.input-help {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: block;
}

.airdrop-info-panel {
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(0, 229, 255, 0.1);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-value {
    color: var(--primary-color);
    font-weight: 600;
}

.crypto-submit-btn {
    width: 100%;
    padding: 1.2rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* 我的空投详情样式 */
.my-airdrop-details {
    margin-top: 3rem;
    background: var(--gradient-card);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.my-airdrop-details h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.user-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.user-stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--dark-tertiary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.user-stat-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
}

.user-stat-card .stat-icon {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: white;
}

.user-stat-card .stat-content h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.user-stat-card .stat-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.user-stat-card .stat-content small {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.user-actions {
    display: grid;
    gap: 2rem;
}

.referral-section label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.referral-link-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.referral-link-display code {
    flex: 1;
    padding: 0.8rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    word-break: break-all;
}

.referral-section small {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

.daily-claim-section {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.daily-claim-btn {
    background: var(--success-color);
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
}

.daily-claim-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.daily-claim-btn:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

.submit-review-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
}

.records-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
}

/* 空投记录表格样式 */
.records-table-container {
    max-height: 400px;
    overflow-y: auto;
}

.records-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-tertiary);
    border-radius: 12px;
    overflow: hidden;
}

.records-table th,
.records-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.records-table th {
    background: var(--dark-bg);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.records-table td {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.records-table tr:hover {
    background: rgba(0, 229, 255, 0.05);
}

.status-pending {
    color: var(--warning-color);
    font-weight: 600;
}

.status-approved {
    color: var(--success-color);
    font-weight: 600;
}

.status-rejected {
    color: #ff6b6b;
    font-weight: 600;
}

.address-short {
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
}

/* 返回顶部按钮 */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-large);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .floating-stats {
        position: static;
        flex-direction: row;
        justify-content: center;
        margin-top: 2rem;
        transform: none;
        gap: 1rem;
    }

    .floating-stats .stat-card {
        padding: 1.5rem 1rem;
        min-width: 100px;
    }

    .tech-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .tokenomics-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-header {
        margin-bottom: 1rem;
    }
}

/* USDT等值金额和奖励等级显示 */
.usdt-equivalent-info {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 12px;
    text-align: center;
}

.usdt-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(0, 229, 255, 0.1);
}

.usdt-label,
.tier-label {
    color: #ffffff;
    font-size: 0.8rem;
}

.usdt-amount {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

.bonus-tier-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tier-description {
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

.tier-basic {
    background: rgba(128, 128, 128, 0.2);
    color: #888;
}

.tier-silver {
    background: rgba(192, 192, 192, 0.2);
    color: #c0c0c0;
}

.tier-gold {
    background: rgba(255, 215, 0, 0.2);
    color: #ffd700;
}

.tier-blue {
    background: rgba(0, 123, 255, 0.2);
    color: #007bff;
}

.tier-diamond {
    background: rgba(220, 20, 60, 0.2);
    color: #dc143c;
}

/* 奖励等级说明 */
.bonus-tier-explanation {
    margin: 1rem 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.05), rgba(108, 92, 231, 0.05));
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 16px;
}

.bonus-tier-explanation h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-align: center;
    font-size: 1.1rem;
}

.tier-list {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.tier-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.tier-item.tier-basic {
    background: rgba(128, 128, 128, 0.1);
    border-left: 3px solid #888;
}

.tier-item.tier-silver {
    background: rgba(107, 184, 97, 0.1);
    border-left: 3px solid #c0c0c0;
}

.tier-item.tier-gold {
    background: rgba(255, 215, 0, 0.1);
    border-left: 3px solid #ffd700;
}

.tier-item.tier-blue {
    background: rgba(0, 123, 255, 0.1);
    border-left: 3px solid #007bff;
}

.tier-item.tier-diamond {
    background: rgba(220, 20, 60, 0.1);
    border-left: 3px solid #dc143c;
}

.tier-range {
    font-weight: 600;
    color: var(--text-primary);
}

.tier-bonus {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.tier-note {
    font-size: 0.8rem;
    color: #F0F6Fc;
    text-align: center;
    margin: 0;
    font-style: italic;
}

/* 奖励等级按钮 */
.bonus-info-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 1.1rem;
    text-decoration: underline;
    padding: 0;
    margin-left: 0.5rem;
}

.bonus-info-btn:hover {
    color: var(--accent-color);
}

/* 奖励等级信息头部 */
.bonus-tier-info-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.6);
    border-radius: 12px;
}

.bonus-tier-info-header p {
    margin: 0 0 0.5rem 0;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
}

.bonus-tier-info-header .bonus-info-btn {
    margin-left: 0;
    font-size: 0.9rem;
    color: #ffffff;
    background: rgba(0, 229, 255, 0.6);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition-fast);
}

.bonus-tier-info-header .bonus-info-btn:hover {
    background: rgba(0, 229, 255, 0.2);
    transform: translateY(-1px);
}

/* 支付方式选择提示样式 */
.price-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid rgba(0, 229, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    backdrop-filter: blur(10px);
    animation: toastFadeIn 0.3s ease;
}

.price-toast .toast-content {
    text-align: center;
    min-width: 280px;
}

.price-toast .blockchain-info {
    margin-bottom: 1rem;
}

.price-toast .blockchain-info strong {
    display: block;
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.price-toast .blockchain-info small {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0.8;
}

.price-toast .price-info {
    margin-bottom: 0.75rem;
    font-size: 1rem;
    color: var(--text-primary);
}

.price-toast .exchange-info {
    font-size: 0.95rem;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 1rem;
}

.price-toast .action-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.price-toast .action-buttons .btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.price-toast .action-buttons .btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.price-toast .action-buttons .btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.price-toast .action-buttons .btn-primary {
    background: var(--primary-color);
    color: var(--dark-bg);
    font-weight: 600;
}

.price-toast .action-buttons .btn-primary:hover {
    background: var(--accent-color);
    transform: translateY(-1px);
}

@keyframes toastFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* 奖励等级弹窗增强样式 */
#bonusTierModal .modal-content {
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
}

#bonusTierModal .bonus-tier-explanation {
    margin: 0;
    padding: 0;
    background: none;
    border: none;
}

.tier-features {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(0, 229, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.tier-features h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.tier-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tier-features li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.4;
}

.tier-features li:last-child {
    margin-bottom: 0;
}

.tier-examples {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(108, 92, 231, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(108, 92, 231, 0.2);
}

.tier-examples h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.example-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    justify-content: center;
}

.example-item {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.example-item strong {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.example-item span {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.example-item small {
    color: #F0F6Fc;
    font-size: 0.8rem;
}

@media (max-width: 768px) {

    /* 移动端优先设计 */
    .container {
        padding: 0 16px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    /* 防止所有元素溢出 */
    * {
        max-width: 100%;
        box-sizing: border-box;
    }

    /* 确保文本不会导致溢出 */
    p,
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    span,
    div {
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
        font-size: 0.9rem;
    }

    /* 确保媒体元素不溢出 */
    img,
    video,
    canvas,
    svg {
        max-width: 100%;
        height: auto;
        box-sizing: border-box;
    }

    /* 确保表格不溢出 */
    table {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    /* 导航栏移动端布局 */
    .nav-container {
        padding: 0rem 0rem;
        position: relative;
    }

    .nav-container::after {
        content: '';
        display: flex;
        align-items: center;
        gap: 0.5rem;
        position: absolute;
        right: 1rem;
        top: 50%;
        transform: translateY(-50%);
        pointer-events: none;
        /* 确保不阻止点击事件 */
        z-index: 999;
        /* 确保层级低于汉堡菜单 */
    }

    section {
        padding: 4rem 0;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(13, 17, 23, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: var(--transition-medium);
        box-shadow: var(--shadow-large);
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex !important;
        z-index: 10000 !important;
        position: relative !important;
        pointer-events: auto !important;
    }

    /* 移动端语言选择器 */
    .language-selector {
        margin-left: 0.5rem;
        order: -1;
        /* 确保在汉堡菜单之前显示 */
    }

    .current-language {
        min-width: 60px;
        padding: 0.1rem 0.1rem;
    }

    .language-text {
        font-size: 0.8rem;
    }

    .flag-icon {
        width: 18px;
        height: 13px;
    }

    .language-dropdown {
        right: -60px;
        min-width: 120px;
    }

    .language-option {
        padding: 0.6rem 0.8rem;
    }

    .language-option span {
        font-size: 0.85rem;
        color: #fff;
    }

    /* 英雄区域移动端优化 */
    .hero {
        min-height: 100vh;
        padding: 2rem 0;
        background: url('/stc/321.jpg') center center/cover no-repeat !important;
        background-attachment: scroll !important;
    }

    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
        margin-bottom: 1.5rem;
    }

    .subtitle {
        font-size: 1.1rem;
        margin-top: 0.5rem;
    }

    .hero-description {
        font-size: 0.9rem;
        margin-bottom: 2rem;
        line-height: 1.6;
        font-weight: 600;
    }

    .hero-quote {
        padding: 1.2rem;
        margin: 1.5rem 0;
    }

    /* 推特截图移动端样式 */
    .musk-tweet {
        margin: 1.5rem 0;
        padding: 1rem;
    }

    .tweet-image {
        max-width: 100%;
        border-radius: 8px;
    }

    .tweet-caption {
        font-size: 0.8rem;
        margin-top: 0.8rem;
    }

    .hero-quote p {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.2rem;
        margin-bottom: 0.8rem;
    }

    .section-header p {
        font-size: 1rem;
        font-weight: 600;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        padding: 0.6rem 2rem;
        font-size: 0.8rem;
    }

    /* 愿景区移动端：横向滑动卡片（仅 #vision，隐藏滚动条、禁止纵向滚动条） */
    #vision .vision-grid {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 1rem;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 0 16px 12px;
        width: auto;
        max-width: none;
        grid-template-columns: unset;
        scrollbar-width: none;
        -ms-overflow-style: none;
        touch-action: pan-x;
    }

    #vision .vision-grid::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    #vision .vision-card {
        flex: 0 0 min(300px, 82vw);
        width: min(300px, 82vw);
        max-width: min(300px, 82vw);
        scroll-snap-align: center;
        padding: 1.25rem 1.5rem;
        margin: 0;
        box-sizing: border-box;
    }

    #vision .vision-card:hover {
        transform: none;
        box-shadow: none;
    }

    .card-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    /* 技术区域移动端优化 */
    .tech-content {
        gap: 2rem;
    }

    /* 技术区：窄屏用弹窗承载长列表，主区域只保留标题 + 按钮 + 顶部视频 */
    .technology .tech-content {
        display: flex;
        flex-direction: column;
        gap: 1.25rem;
    }

    /* 移动端：上文（tech-left）下视频，保持文档顺序 */
    .technology .tech-right {
        width: 100%;
    }

    .technology .tech-left .tech-section .tech-features {
        display: none !important;
    }

    .technology .tech-mobile-open-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        box-sizing: border-box;
    }

    .tech-section h3 {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .technology .tech-section h3 {
        margin-bottom: 0.35rem;
    }

    .tech-features li {
        padding: 0.6rem 0;
        font-size: 0.95rem;
        line-height: 1.5;
    }

    /* 代币经济学移动端优化 */
    .tokenomics-content {
        gap: 2rem;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    /* 确保tokenomics部分不溢出 */
    .tokenomics {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    .chart-container {
        height: 300px;
    }

    .distribution-table {
        font-size: 0.9rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        table-layout: fixed;
    }

    .distribution-table th,
    .distribution-table td {
        padding: 0.8rem 0.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        font-size: 0.8rem;
    }

    /* 确保tokenomics表格容器不溢出 */
    .tokenomics-table {
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .utility-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .utility-card {
        padding: 0.5rem;
        margin: 0 8px;
    }

    /* 空投时间线移动端优化 */
    .airdrop-timeline::before {
        left: 20px;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin: 0;
        text-align: left;
        padding-left: 3rem;
        width: auto;
    }

    .timeline-marker {
        left: 6px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .timeline-content {
        padding: 1.5rem;
        margin: 0 8px;
    }

    .condition {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }

    /* 空投三轮卡片：与预售轮一致 — 隐藏滚动条、3D 旋转、边缘 mask */
    #airdrop .airdrop-timeline:has(.airdrop-cards-scroll)::before {
        display: none;
    }

    #airdrop .airdrop-cards-scroll {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 1.1rem 16px 1.35rem;
        width: auto;
        max-width: none;
        touch-action: pan-x;
        scrollbar-width: none;
        -ms-overflow-style: none;
        align-items: center;
        perspective: 1100px;
        perspective-origin: 50% 45%;
        transform-style: preserve-3d;
        mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
        -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
    }

    #airdrop .airdrop-cards-scroll::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    #airdrop .airdrop-cards-scroll .timeline-marker {
        display: none;
    }

    #airdrop .airdrop-cards-scroll .timeline-item {
        flex: 0 0 min(268px, 70vw);
        width: min(268px, 70vw);
        max-width: min(268px, 70vw);
        margin: 0;
        scroll-snap-align: center;
        align-items: stretch;
        position: relative;
        transform-style: preserve-3d;
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        opacity: 0.58;
        transform: translateZ(-48px) rotateY(0deg) scale(0.9);
        filter: brightness(0.8);
        transition:
            transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
            opacity 0.45s ease,
            filter 0.45s ease;
        z-index: 1;
    }

    #airdrop .airdrop-cards-scroll .timeline-item:nth-child(odd) .timeline-content,
    #airdrop .airdrop-cards-scroll .timeline-item:nth-child(even) .timeline-content {
        margin: 0;
        padding: 1.25rem;
        padding-left: 1.25rem;
        text-align: left;
        width: 100%;
        overflow-x: hidden;
    }

    #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--left {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--right {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(-42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--center {
        opacity: 1;
        transform: translateZ(32px) rotateY(0deg) scale(1);
        filter: none;
        z-index: 6;
    }

    #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--center .timeline-content {
        box-shadow:
            0 24px 56px rgba(0, 229, 255, 0.22),
            0 8px 28px rgba(0, 0, 0, 0.5);
    }

    #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--center .timeline-content:hover {
        box-shadow:
            0 28px 64px rgba(0, 229, 255, 0.28),
            0 10px 32px rgba(0, 0, 0, 0.55);
    }

    /* 预售轮次：横向滑动 + 3D 旋转卡片（默认机构轮居中），隐藏滚动条 */
    #presale .presale-rounds {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 1.1rem 16px 1.35rem;
        width: auto;
        max-width: none;
        grid-template-columns: unset;
        margin-bottom: 3rem;
        touch-action: pan-x;
        scrollbar-width: none;
        -ms-overflow-style: none;
        align-items: center;
        perspective: 1100px;
        perspective-origin: 50% 45%;
        transform-style: preserve-3d;
        mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
        -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
    }

    #presale .presale-rounds::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    #presale .presale-rounds .presale-card {
        position: relative;
        flex: 0 0 min(268px, 70vw);
        width: min(268px, 70vw);
        max-width: min(268px, 70vw);
        scroll-snap-align: center;
        margin: 0;
        box-sizing: border-box;
        transform-style: preserve-3d;
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        opacity: 0.58;
        transform: translateZ(-48px) rotateY(0deg) scale(0.9);
        filter: brightness(0.8);
        transition:
            transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
            opacity 0.45s ease,
            filter 0.45s ease,
            box-shadow 0.45s ease;
        z-index: 1;
    }

    /* 左侧卡片：向里旋转，露出右侧面 */
    #presale .presale-rounds .presale-card.presale-card--left {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    /* 右侧卡片：向里旋转，露出左侧面 */
    #presale .presale-rounds .presale-card.presale-card--right {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(-42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    /* 正中主卡：正对屏幕、略向前拉出 */
    #presale .presale-rounds .presale-card.presale-card--center {
        opacity: 1;
        transform: translateZ(32px) rotateY(0deg) scale(1);
        filter: none;
        z-index: 6;
        box-shadow:
            0 24px 56px rgba(0, 229, 255, 0.22),
            0 8px 28px rgba(0, 0, 0, 0.5);
    }

    #presale .presale-rounds .presale-card.presale-card--center:hover {
        box-shadow:
            0 28px 64px rgba(0, 229, 255, 0.28),
            0 10px 32px rgba(0, 0, 0, 0.55);
    }

    /* 路线图 index2：横向滑动 + 3D 旋转（默认由 JS 将 2025 Q4 滚至中间） */
    #roadmap .roadmap-timeline:has(.roadmap-cards-scroll) {
        max-width: none;
        padding: 0;
    }

    #roadmap .roadmap-timeline:has(.roadmap-cards-scroll)::before {
        display: none;
    }

    #roadmap .roadmap-cards-scroll {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 1.1rem 16px 1.35rem;
        width: auto;
        max-width: none;
        touch-action: pan-x;
        scrollbar-width: none;
        -ms-overflow-style: none;
        align-items: center;
        perspective: 1100px;
        perspective-origin: 50% 45%;
        transform-style: preserve-3d;
        mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
        -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
    }

    #roadmap .roadmap-cards-scroll::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    #roadmap .roadmap-cards-scroll .roadmap-item {
        flex: 0 0 min(288px, 78vw);
        width: min(288px, 78vw);
        max-width: min(288px, 78vw);
        scroll-snap-align: center;
        margin: 0;
        padding-left: 0;
        box-sizing: border-box;
        transform-style: preserve-3d;
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        opacity: 0.58;
        transform: translateZ(-48px) rotateY(0deg) scale(0.9);
        filter: brightness(0.8);
        transition:
            transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
            opacity 0.45s ease,
            filter 0.45s ease;
        z-index: 1;
    }

    #roadmap .roadmap-cards-scroll .roadmap-content {
        margin: 0;
        width: 100%;
        max-height: min(70vh, 520px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--left {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--right {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(-42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--center {
        opacity: 1;
        transform: translateZ(32px) rotateY(0deg) scale(1);
        filter: none;
        z-index: 6;
    }

    #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--center .roadmap-content {
        box-shadow:
            0 24px 56px rgba(0, 229, 255, 0.22),
            0 8px 28px rgba(0, 0, 0, 0.5);
    }

    #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--center .roadmap-content:hover {
        box-shadow:
            0 28px 64px rgba(0, 229, 255, 0.28),
            0 10px 32px rgba(0, 0, 0, 0.55);
    }

    @media (prefers-reduced-motion: reduce) {
        #presale .presale-rounds .presale-card,
        #presale .presale-rounds .presale-card.presale-card--left,
        #presale .presale-rounds .presale-card.presale-card--right,
        #presale .presale-rounds .presale-card.presale-card--center,
        #airdrop .airdrop-cards-scroll .timeline-item,
        #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--left,
        #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--right,
        #airdrop .airdrop-cards-scroll .timeline-item.airdrop-tm--center,
        #airdrop .stats-grid .stat-item,
        #airdrop .stats-grid .stat-item.airdrop-st--left,
        #airdrop .stats-grid .stat-item.airdrop-st--right,
        #airdrop .stats-grid .stat-item.airdrop-st--center,
        #roadmap .roadmap-cards-scroll .roadmap-item,
        #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--left,
        #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--right,
        #roadmap .roadmap-cards-scroll .roadmap-item.roadmap-rm--center {
            transition-duration: 0.01ms;
        }
    }

    .presale-card {
        padding: 1.5rem;
    }

    .presale-card::before {
        opacity: 0.3;
    }

    .presale-card:hover::before {
        opacity: 0.4;
        transform: scale(1.02);
    }

    .card-header {
        padding: 0.8rem;
        margin-bottom: 1rem;
    }

    .card-content {
        padding: 0.8rem;
        background: rgba(13, 17, 23, 0.4);
    }

    .price {
        font-size: 1rem;
    }

    .countdown {
        gap: 0.6rem;
        margin: 0.8rem 0;
    }

    .time-unit {
        padding: 0.1em 0.1em;
        min-width: 50px;
    }

    .time-unit span {
        font-size: 1.3rem;
    }

    .time-unit label {
        font-size: 0.75rem;
    }

    /* 支付方式移动端优化 */
    .payment-methods {
        order: 2;
        /* 让支付方式在预售卡片之后显示 */
        margin-top: 2rem;
        padding-top: 2rem;
        border-top: 1px solid var(--border-color);
    }

    .payment-methods h3 {
        text-align: center;
        font-size: 1.3rem;
        margin-bottom: 1.5rem;
    }

    /* 支付方式图标：移动端横向滑动 */
    #presale .payment-icons {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0.75rem;
        overflow-x: auto;
        overflow-y: visible;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 0 16px 10px;
        max-width: none;
        width: auto;
        touch-action: pan-x;
        scrollbar-width: thin;
        scrollbar-color: rgba(0, 229, 255, 0.35) transparent;
    }

    #presale .payment-icons::-webkit-scrollbar {
        height: 4px;
    }

    #presale .payment-icons::-webkit-scrollbar-thumb {
        background: rgba(0, 229, 255, 0.45);
        border-radius: 4px;
    }

    #presale .payment-icons .payment-item {
        flex: 0 0 auto;
        min-width: 76px;
        scroll-snap-align: start;
    }

    .payment-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 1rem;
        background: var(--dark-tertiary);
        border-radius: 12px;
        border: 1px solid var(--border-color);
        transition: var(--transition-medium);
    }

    .payment-item:hover {
        border-color: var(--primary-color);
        background: rgba(0, 229, 255, 0.05);
    }

    .payment-item img {
        width: 50px;
        height: 35px;
        object-fit: contain;
        padding: 3px;
        margin-bottom: 0.5rem;
    }

    .payment-item span {
        font-size: 0.85rem;
        font-weight: 500;
        margin-bottom: 0.25rem;
    }

    .price-info {
        text-align: center;
    }

    .price-info small {
        font-size: 0.75rem;
    }

    /* 路线图移动端优化 */
    .roadmap-item {
        padding-left: 60px;
        margin: 2rem 0;
    }

    .roadmap-content {
        padding: 1.5rem;
        margin: 0 8px;
    }

    .roadmap-content h3 {
        font-size: 1.2rem;
    }

    .roadmap-content li {
        font-size: 0.9rem;
    }

    /* 合作伙伴移动端优化 */
    .partner-logos {
        gap: 1.5rem;
    }

    .partner-logo img {
        height: 50px;
    }

    /* 社区统计移动端优化 */
    .community-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .community-stats .stat-card {
        padding: 1.5rem 1rem;
    }

    .community-stats .stat-card i {
        font-size: 2rem;
    }

    .community-stats .stat-card h3 {
        font-size: 1.5rem;
    }

    .community-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .community-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: 1rem 1.5rem;
    }

    /* CTA区域移动端优化 */
    .cta-content h2 {
        font-size: 1.2rem;
        line-height: 1.3;
    }

    .cta-content p {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    /* 页脚移动端优化 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }

    .footer-section ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .footer-section ul li {
        margin-bottom: 0;
    }

    .social-links {
        justify-content: center;
    }
}

/* @media (max-width: 480px) {


    .container {
        padding: 10px 6px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    section {
        padding: 2rem 0;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
        box-sizing: border-box;
    }

    .hero {
        background: url('/stc/321.jpg') center center/cover no-repeat !important;
        background-attachment: scroll !important;
    }

    .hero-title {
        font-size: 1.9rem;
        line-height: 1.2;
    }

    .subtitle {
        font-size: 1rem;
    }

    .hero-description {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .hero-quote {
        padding: 1rem;
        margin: 1.2rem 0;
    }

    .hero-quote p {
        font-size: 1.3rem;
    }

    .section-header h2 {
        font-size: 1.6rem;
        line-height: 1.3;
    }

    .section-header p {
        font-size: 1.3rem;
    }

 
    .floating-stats {
        flex-direction: column;
        gap: 0.8rem;
    }

    .floating-stats .stat-card {
        padding: 1rem;
        width: 100%;
        max-width: 200px;
    }

    .floating-stats .stat-card h3 {
        font-size: 1.3rem;
    }

 
    #vision .vision-grid {
        margin-left: -6px;
        margin-right: -6px;
        padding-left: 6px;
        padding-right: 6px;
        scroll-padding-left: 6px;
        scroll-padding-right: 6px;
    }

    #vision-showcase .vision-stats,
    #presale .presale-rounds,
    #presale .payment-icons,
    #airdrop .airdrop-cards-scroll,
    #airdrop .stats-grid {
        margin-left: -6px;
        margin-right: -6px;
        padding-left: 6px;
        padding-right: 6px;
        scroll-padding-left: 6px;
        scroll-padding-right: 6px;
    }

   
    .vision-card,
    .utility-card {
        padding: 1.2rem;
        margin: 0 4px;
    }

    #vision .vision-card {
        padding: 1.15rem 1.25rem;
        margin: 0;
    }

    .card-icon {
        font-size: 2.2rem;
    }

   
    .tech-features li {
        font-size: 0.9rem;
        padding: 0.5rem 0;
        padding-left: 1.5rem;
    }

 
    .distribution-table {
        font-size: 0.75rem;
        min-width: 100%;
        table-layout: auto;
    }

    .distribution-table th,
    .distribution-table td {
        padding: 0.5rem 0.25rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        min-width: 0;
    }

    .tokenomics-table::after {
        content: "← Swipe to see more →";
        display: block;
        text-align: center;
        font-size: 0.7rem;
        color: var(--text-secondary);
        margin-top: 0.5rem;
    }

   
    .distribution-table th:nth-child(1),
    .distribution-table td:nth-child(1) {
        width: 30%;
        min-width: 80px;
    }

    .distribution-table th:nth-child(2),
    .distribution-table td:nth-child(2) {
        width: 20%;
        min-width: 60px;
    }

    .distribution-table th:nth-child(3),
    .distribution-table td:nth-child(3) {
        width: 15%;
        min-width: 40px;
    }

    .distribution-table th:nth-child(4),
    .distribution-table td:nth-child(4) {
        width: 15%;
        min-width: 50px;
    }

    .distribution-table th:nth-child(5),
    .distribution-table td:nth-child(5) {
        width: 20%;
        min-width: 60px;
    }

 
    .distribution-table {
        min-width: 320px;
    }

  
    .timeline-content,
    .roadmap-content {
        padding: 1.2rem;
        margin: 0 4px;
    }

    .timeline-content h3,
    .roadmap-content h3 {
        font-size: 1.1rem;
    }

  
    .presale-card {
        padding: 1.2rem;
        margin: 0 4px;
    }

    .presale-card::before {
        opacity: 0.25;
    }

    .presale-card:hover::before {
        opacity: 0.35;
        transform: none;
    }

    .card-header {
        padding: 0.6rem;
        margin-bottom: 0.8rem;
        font-size: 0.9rem;
    }

    .card-content {
        padding: 1rem;
        background: rgba(13, 17, 23, 0.6);
    }

    .price {
        font-size: 1.6rem;
    }

    .countdown {
        gap: 0.6rem;
        margin: 1rem 0;
    }

    .time-unit {
        padding: 0.6rem 0.4rem;
        min-width: 50px;
    }

    .time-unit span {
        font-size: 1.2rem;
    }

    .time-unit label {
        font-size: 0.7rem;
    }

   
    .payment-methods {
        order: 2;
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        border-top: 1px solid var(--border-color);
    }

    .payment-methods h3 {
        text-align: center;
        font-size: 1.2rem;
        margin-bottom: 1.2rem;
    }

    .payment-icons {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
        max-width: 350px;
        margin: 0 auto;
    }

    .payment-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 0.8rem;
        background: #00000066;
        border-radius: 10px;
        border: 1px solid var(--border-color);
    }

    .payment-item img {
        width: 45px;
        height: 30px;
        object-fit: contain;
        padding: 2px;
        margin-bottom: 0.4rem;
    }

    .payment-item span {
        font-size: 0.75rem;
        font-weight: 700;
        margin-bottom: 0.2rem;
        text-align: center;
    }

    .price-info {
        text-align: center;
    }

    .price-info small {
        font-size: 0.7rem;
    }


    .community-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }

    .community-stats .stat-card {
        padding: 1.2rem;
        max-width: 250px;
        margin: 0 auto;
    }

 
    .btn {
        max-width: 260px;
        padding: 1rem 1.5rem;
        font-size: 0.95rem;
    }

    .community-btn {
        max-width: 260px;
        padding: 0.9rem 1.2rem;
    }

    .cta-content h2 {
        font-size: 1.8rem;
        line-height: 1.2;
    }

    .cta-content p {
        font-size: 1.3rem;
        line-height: 1.5;
    }


    .footer-section h4 {
        font-size: 1rem;
    }

    .footer-section ul {
        gap: 0.8rem;
    }

    .footer-section ul li a {
        font-size: 0.9rem;
    }

    .disclaimer small {
        font-size: 0.75rem;
        line-height: 1.4;
    }


    .modal-content {
        width: 95%;
        max-height: 95vh;
        margin: 1rem;
    }

    .modal-header {
        padding: 1rem;
    }

    .modal-header h2 {
        font-size: 1.3rem;
    }

    .modal-body {
        padding: 1rem;
    }

    .current-price {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .current-price h3 {
        font-size: 1.5rem;
    }

    .payment-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .payment-option {
        padding: 0.8rem;
    }

    .input-with-token input {
        padding: 0.8rem;
        padding-right: 3.5rem;
        font-size: 1rem;
    }

    .conversion-display {
        padding: 1rem;
        margin: 1.5rem 0;
    }

    .mega-amount {
        font-size: 1.6rem;
    }

    .purchase-summary {
        padding: 1rem;
        margin: 1.5rem 0;
    }

    .action-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }

    .status-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .payment-details-confirm {
        padding: 1rem;
    }

    .detail-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }

    /* 支付确认：移动端「收款地址」标签在上、地址居中、复制按钮在下 */
    #paymentConfirmModal .detail-row--payment-address {
        align-items: stretch;
        gap: 0.65rem;
    }

    #paymentConfirmModal .detail-row--payment-address > span:first-of-type {
        width: 100%;
        font-weight: 600;
        color: var(--text-primary);
    }

    .address-confirm {
        width: 100%;
        margin-left: 0;
    }

    #paymentConfirmModal .address-confirm {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    #paymentConfirmModal .address-confirm code {
        display: block;
        width: 100%;
        box-sizing: border-box;
        text-align: center;
        font-size: 0.75rem;
        padding: 0.65rem 0.5rem;
        line-height: 1.45;
    }

    #paymentConfirmModal .address-confirm .copy-btn {
        display: inline-flex;
        align-items: center;
        width: 100%;
        justify-content: center;
        padding: 0.65rem 1rem;
        box-sizing: border-box;
    }

    .qr-placeholder {
        width: 150px;
        height: 150px;
    }

    .qr-placeholder i {
        font-size: 2rem;
    }

 
    .tesla-payment-form {
        padding: 1rem;
        margin: 1.5rem 0;
    }

   
    .chain-selector {
        padding: 0.75rem;
        margin: 1rem 0;
    }

    .chain-option {
        padding: 0.5rem 0.75rem;
        gap: 0.75rem;
    }

    .chain-option img {
        width: 28px;
        height: 28px;
    }

    .chain-name {
        font-size: 0.9rem;
    }

    .chain-info small {
        font-size: 0.75rem;
    }



    .tesla-balance {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }


    .airdrop-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .airdrop-btn {
        width: 100%;
        text-align: center;
    }

    .airdrop-status {
        justify-content: center;
    }

    .airdrop-stats {
        margin-top: 3rem;
        padding: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    
    #airdrop .stats-grid {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        margin-left: -16px;
        margin-right: -16px;
        padding: 1.1rem 16px 1.35rem;
        width: auto;
        max-width: none;
        grid-template-columns: unset;
        margin-bottom: 2rem;
        touch-action: pan-x;
        scrollbar-width: none;
        -ms-overflow-style: none;
        align-items: center;
        perspective: 1100px;
        perspective-origin: 50% 45%;
        transform-style: preserve-3d;
        mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
        -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 6%, #000 94%, transparent 100%);
    }

    #airdrop .stats-grid::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    #airdrop .stats-grid .stat-item {
        position: relative;
        flex: 0 0 min(240px, 68vw);
        width: min(240px, 68vw);
        max-width: min(240px, 68vw);
        scroll-snap-align: center;
        flex-shrink: 0;
        transform-style: preserve-3d;
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        opacity: 0.58;
        transform: translateZ(-48px) rotateY(0deg) scale(0.9);
        filter: brightness(0.8);
        transition:
            transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
            opacity 0.45s ease,
            filter 0.45s ease,
            box-shadow 0.45s ease;
        z-index: 1;
    }

    #airdrop .stats-grid .stat-item.airdrop-st--left {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    #airdrop .stats-grid .stat-item.airdrop-st--right {
        opacity: 0.62;
        transform: translateZ(-72px) rotateY(-42deg) scale(0.88);
        filter: brightness(0.72);
        z-index: 2;
    }

    #airdrop .stats-grid .stat-item.airdrop-st--center {
        opacity: 1;
        transform: translateZ(32px) rotateY(0deg) scale(1);
        filter: none;
        z-index: 6;
        box-shadow:
            0 24px 56px rgba(0, 229, 255, 0.22),
            0 8px 28px rgba(0, 0, 0, 0.5);
    }

    #airdrop .stats-grid .stat-item.airdrop-st--center:hover {
        box-shadow:
            0 28px 64px rgba(0, 229, 255, 0.28),
            0 10px 32px rgba(0, 0, 0, 0.55);
    }

    .stat-item {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 1.2rem;
    }

    .airdrop-progress {
        padding: 1rem;
    }

    .query-form .input-group {
        flex-direction: column;
        gap: 0.8rem;
    }

    .query-input {
        padding: 0.8rem;
    }

   
    .airdrop-modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .form-steps {
        gap: 1rem;
    }

    .step-number {
        width: 35px;
        height: 35px;
    }

    .step-text {
        font-size: 0.75rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .product-card {
        padding: 1.2rem;
    }

    .upload-area {
        padding: 1.5rem;
    }

    .notify-signup {
        flex-direction: column;
        gap: 0.8rem;
    }

    .coming-soon {
        padding: 2rem 1rem;
    }

   
    .my-airdrop-details {
        margin-top: 2rem;
        padding: 1.5rem;
    }

    .my-airdrop-details h3 {
        font-size: 1.5rem;
    }

    .user-stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .user-stat-card {
        padding: 1rem;
    }

    .user-stat-card .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .daily-claim-section {
        flex-direction: column;
        gap: 0.8rem;
    }

    .daily-claim-btn,
    .submit-review-btn,
    .records-btn {
        width: 100%;
        justify-content: center;
        padding: 1rem;
    }

    .referral-link-display {
        flex-direction: column;
        gap: 0.8rem;
    }

    .referral-link-display code {
        word-break: break-all;
        font-size: 0.8rem;
    }

    .records-table th,
    .records-table td {
        padding: 0.8rem 0.5rem;
        font-size: 0.8rem;
    }
} */

/* 价格更新提示动画 */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }

    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* 视频优化样式 */
.hero-image video {
    will-change: opacity;
    transition: opacity 0.3s ease;
    object-fit: cover;
}

/* 支付方式优先加载指示器 */
.payment-item {
    position: relative;
}

.payment-item.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 审计认证区域样式 */
.audit-section {
    background: #000000;
    padding: 4rem 0;
    border-top: 1px solid rgba(0, 229, 255, 0.1);
}

.audit-header {
    text-align: center;
    margin-bottom: 3rem;
}

.audit-header h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.audit-header p {
    color: #fff;
    font-size: 1.1rem;
}

.audit-partners {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.audit-partner {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16/9;
    background: rgba(22, 27, 34, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition-medium);
    text-decoration: none;
    overflow: hidden;
    position: relative;
    flex-direction: column;
}

.audit-partner:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-medium);
    background: rgba(22, 27, 34, 0.9);
}

.audit-partner img {
    width: 80%;
    height: auto;
    object-fit: contain;
    transition: var(--transition-medium);
    filter: brightness(0.9);
}

.audit-partner:hover img {
    transform: scale(1.05);
    filter: brightness(1);
}

.partner-info {
    text-align: center;
}

.partner-name {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.report-label {
    display: block;
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 500;
}

.audit-modal {
    max-width: 800px;
    width: 90%;
}

.audit-report-content {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

/* 审计区域响应式设计 */
@media (max-width: 1024px) {
    .audit-partners {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }
}

@media (max-width: 768px) {
    .audit-section {
        padding: 3rem 0;
    }

    .audit-header h3 {
        font-size: 1.2rem;
    }

    .audit-header p {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .audit-partners {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        padding: 0 1rem;
    }

    .audit-partner {
        aspect-ratio: 3/2;
    }

    .audit-partner img {
        width: 70%;
    }
}

/* @media (max-width: 480px) {
    .audit-section {
        padding: 2rem 0;
    }

    .audit-header h3 {
        font-size: 1.6rem;
    }

    .audit-partners {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
        padding: 0 0.8rem;
    }

    .audit-partner {
        aspect-ratio: 1/1;
    }

    .audit-partner img {
        width: 65%;
    }
} */

.crypto-submit-btn.submitted {
    background-color: #4caf50 !important;
    cursor: not-allowed;
    opacity: 0.8;
}

.crypto-submit-btn.submitted:hover {
    transform: none !important;
}

/* 推荐链接复制效果 */
#referralLink {
    transition: all 0.3s ease;
}

#referralLink.copied {
    background-color: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
}

.referral-link-display {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.copy-btn {
    position: relative;
    overflow: hidden;
}

.copy-btn:active {
    transform: scale(0.95);
}

/* 增强路线图样式 - 折叠展开版本 */
.roadmap-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.roadmap-header:hover {
    transform: translateX(5px);
}

.roadmap-header h3 {
    margin: 0;
    flex: 1;
}

.expand-icon {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    transition: transform 0.3s ease;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 229, 255, 0.1);
}

.expand-icon.expanded {
    transform: rotate(45deg);
    background: rgba(0, 229, 255, 0.2);
}

.roadmap-summary {
    margin: 0.5rem 0 1rem 0;
    opacity: 0.8;
}

.roadmap-summary p {
    margin: 0;
    font-size: 0.95rem;
    color: #ccc;
    line-height: 1.4;
}

.roadmap-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, opacity 0.3s ease;
    opacity: 0;
}

.roadmap-details.expanded {
    max-height: 2000px;
    opacity: 1;
    transition: max-height 0.5s ease-in, opacity 0.4s ease 0.1s;
}

.roadmap-details.collapsing {
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease-out, opacity 0.3s ease;
}

.roadmap-phases {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.phase-section {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 1.2rem;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.phase-section:hover {
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--accent-color);
    transform: translateX(3px);
}

.special-phase {
    background: linear-gradient(135deg,
            rgba(255, 215, 0, 0.1),
            rgba(255, 165, 0, 0.1)) !important;
    border-left-color: #ffd700 !important;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.15);
}

.special-phase:hover {
    background: linear-gradient(135deg,
            rgba(255, 215, 0, 0.15),
            rgba(255, 165, 0, 0.15)) !important;
    transform: translateX(5px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.25);
}

.phase-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.special-phase .phase-title {
    color: #ffd700;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
}

.roadmap-content ul {
    margin: 0;
    padding: 0;
}

.roadmap-content li {
    padding: 0.3rem 0;
    font-size: 0.9rem;
    line-height: 1.4;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    transition: all 0.3s ease;
}

.roadmap-content li:last-child {
    border-bottom: none;
}

.roadmap-content li:hover {
    color: var(--accent-color);
    padding-left: 0.3rem;
}

.special-phase li:hover {
    color: #ffd700;
}

/* 当前阶段特殊样式 */
.roadmap-item.current .roadmap-header h3 {
    background: linear-gradient(45deg, #00e5ff, #ffd700);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.roadmap-item.current .expand-icon {
    background: linear-gradient(45deg,
            rgba(0, 229, 255, 0.2),
            rgba(255, 215, 0, 0.2));
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

/* 展开状态的项目样式 */
.roadmap-item.expanded-item {
    transform: scale(1.02);
    transition: transform 0.3s ease;
}

.roadmap-item.expanded-item .roadmap-content {
    background: rgba(255, 255, 255, 0.03);
    box-shadow: 0 8px 32px rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.1);
}

.roadmap-item.expanded-item .roadmap-marker {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* 手风琴动画优化 */
.roadmap-timeline {
    position: relative;
    transition: all 0.3s ease;
}

.roadmap-item {
    transition: all 0.3s ease;
    position: relative;
}

/* 展开指示器 */
.roadmap-item.expanded-item::before {
    content: "";
    position: absolute;
    left: -10px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg,
            var(--accent-color),
            var(--primary-color));
    border-radius: 2px;
    opacity: 0.8;
    animation: expandIndicator 0.5s ease-out;
}

@keyframes expandIndicator {
    from {
        opacity: 0;
        width: 0;
    }

    to {
        opacity: 0.8;
        width: 4px;
    }
}

/* 折叠时的收缩动画 */
.roadmap-details.collapsing .phase-section {
    animation: collapsePhase 0.3s ease-out forwards !important;
}

@keyframes collapsePhase {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .roadmap-timeline {
        max-width: 100%;
        padding: 0 0.5rem;
    }

    .roadmap-item {
        margin: 1.5rem 0;
        padding-left: 60px;
    }

    .roadmap-marker {
        left: 10px;
        width: 25px;
        height: 25px;
        font-size: 0.9rem;
    }

    .roadmap-timeline::before {
        left: 22px;
    }

    .roadmap-content {
        padding: 1.2rem;
    }

    .roadmap-header h3 {
        font-size: 1.1rem;
    }

    .phase-section {
        padding: 1rem;
    }

    .phase-title {
        font-size: 0.95rem;
    }

    .roadmap-content li {
        font-size: 0.85rem;
    }

    .expand-icon {
        font-size: 1.3rem;
        width: 25px;
        height: 25px;
    }
}

/* 小屏幕优化 */
@media (max-width: 480px) {

    /* 合作伙伴滚动优化 */
    .partner-logos-track {
        gap: 2rem;
    }

    .partner-logo {
        padding: 0.4rem 0.8rem;
        min-width: 60px;
    }



    /* 加快小屏幕的滚动速度 */
    .partner-category:nth-child(2) .partner-logos-track {
        animation-duration: 25s;
    }

    .partner-category:nth-child(1) .partner-logos-track,
    .partner-category:nth-child(3) .partner-logos-track {
        animation-duration: 30s;
    }

    /* 路线图优化 */
    .roadmap-item {
        padding-left: 50px;
    }

    .roadmap-marker {
        left: 8px;
        width: 20px;
        height: 20px;
        font-size: 0.8rem;
    }

    .roadmap-timeline::before {
        left: 17px;
    }

    .roadmap-content {
        padding: 1rem;
    }

    .roadmap-header h3 {
        font-size: 1rem;
    }

    .phase-section {
        padding: 0.8rem;
    }

    .roadmap-content li {
        font-size: 0.8rem;
    }

    .roadmap-summary p {
        font-size: 0.85rem;
    }
}

/* 优化动画效果 - 减少初始动画 */
.roadmap-item {
    opacity: 1;
    transform: translateY(0);
}

/* 只对展开的详细内容添加动画 */
.roadmap-details.expanded .phase-section {
    animation: slideInUp 0.4s ease forwards;
}

.roadmap-details.expanded .phase-section:nth-child(1) {
    animation-delay: 0.1s;
}

.roadmap-details.expanded .phase-section:nth-child(2) {
    animation-delay: 0.2s;
}

.roadmap-details.expanded .phase-section:nth-child(3) {
    animation-delay: 0.3s;
}

.roadmap-details.expanded .phase-section:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 标记器特殊效果 */
.roadmap-item.current .roadmap-marker {
    box-shadow: 0 0 20px var(--accent-color);
    animation: pulse 2s infinite;
}

.crypto-submit-btn.submitted {
    background-color: #4caf50 !important;
    cursor: not-allowed;
    opacity: 0.8;
}

.crypto-submit-btn.submitted:hover {
    transform: none !important;
}

/* 推荐链接复制效果 */
#referralLink {
    transition: all 0.3s ease;
}

#referralLink.copied {
    background-color: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
}

.referral-link-display {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.copy-btn {
    position: relative;
    overflow: hidden;
}

.copy-btn:active {
    transform: scale(0.95);
}

/* 增强路线图样式 - 折叠展开版本 */
.roadmap-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.roadmap-header:hover {
    transform: translateX(5px);
}

.roadmap-header h3 {
    margin: 0;
    flex: 1;
}

.expand-icon {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    transition: transform 0.3s ease;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 229, 255, 0.1);
}

.expand-icon.expanded {
    transform: rotate(45deg);
    background: rgba(0, 229, 255, 0.2);
}

.roadmap-summary {
    margin: 0.5rem 0 1rem 0;
    opacity: 0.8;
}

.roadmap-summary p {
    margin: 0;
    font-size: 0.95rem;
    color: #ccc;
    line-height: 1.4;
}

.roadmap-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, opacity 0.3s ease;
    opacity: 0;
}

.roadmap-details.expanded {
    max-height: 2000px;
    opacity: 1;
    transition: max-height 0.5s ease-in, opacity 0.4s ease 0.1s;
}

.roadmap-details.collapsing {
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease-out, opacity 0.3s ease;
}

.roadmap-phases {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.phase-section {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 1.2rem;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.phase-section:hover {
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--accent-color);
    transform: translateX(3px);
}

.special-phase {
    background: linear-gradient(135deg,
            rgba(255, 215, 0, 0.1),
            rgba(255, 165, 0, 0.1)) !important;
    border-left-color: #ffd700 !important;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.15);
}

.special-phase:hover {
    background: linear-gradient(135deg,
            rgba(255, 215, 0, 0.15),
            rgba(255, 165, 0, 0.15)) !important;
    transform: translateX(5px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.25);
}

.phase-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.special-phase .phase-title {
    color: #ffd700;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
}

.roadmap-content ul {
    margin: 0;
    padding: 0;
}

.roadmap-content li {
    padding: 0.3rem 0;
    font-size: 0.9rem;
    line-height: 1.4;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    transition: all 0.3s ease;
}

.roadmap-content li:last-child {
    border-bottom: none;
}

.roadmap-content li:hover {
    color: var(--accent-color);
    padding-left: 0.3rem;
}

.special-phase li:hover {
    color: #ffd700;
}

/* 当前阶段特殊样式 */
.roadmap-item.current .roadmap-header h3 {
    background: linear-gradient(45deg, #00e5ff, #ffd700);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.roadmap-item.current .expand-icon {
    background: linear-gradient(45deg,
            rgba(0, 229, 255, 0.2),
            rgba(255, 215, 0, 0.2));
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

/* 展开状态的项目样式 */
.roadmap-item.expanded-item {
    transform: scale(1.02);
    transition: transform 0.3s ease;
}

.roadmap-item.expanded-item .roadmap-content {
    background: rgba(255, 255, 255, 0.03);
    box-shadow: 0 8px 32px rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.1);
}

.roadmap-item.expanded-item .roadmap-marker {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* 手风琴动画优化 */
.roadmap-timeline {
    position: relative;
    transition: all 0.3s ease;
}

.roadmap-item {
    transition: all 0.3s ease;
    position: relative;
}

/* 展开指示器 */
.roadmap-item.expanded-item::before {
    content: "";
    position: absolute;
    left: -10px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg,
            var(--accent-color),
            var(--primary-color));
    border-radius: 2px;
    opacity: 0.8;
    animation: expandIndicator 0.5s ease-out;
}

@keyframes expandIndicator {
    from {
        opacity: 0;
        width: 0;
    }

    to {
        opacity: 0.8;
        width: 4px;
    }
}

/* 折叠时的收缩动画 */
.roadmap-details.collapsing .phase-section {
    animation: collapsePhase 0.3s ease-out forwards !important;
}

@keyframes collapsePhase {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* 只对展开的详细内容添加动画 */
.roadmap-details.expanded .phase-section {
    animation: slideInUp 0.4s ease forwards;
}

.roadmap-details.expanded .phase-section:nth-child(1) {
    animation-delay: 0.1s;
}

.roadmap-details.expanded .phase-section:nth-child(2) {
    animation-delay: 0.2s;
}

.roadmap-details.expanded .phase-section:nth-child(3) {
    animation-delay: 0.3s;
}

.roadmap-details.expanded .phase-section:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 标记器特殊效果 */
.roadmap-item.current .roadmap-marker {
    box-shadow: 0 0 20px var(--accent-color);
    animation: pulse 2s infinite;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .roadmap-timeline {
        max-width: 100%;
        padding: 0 0.5rem;
    }

    .roadmap-item {
        margin: 1.5rem 0;
        padding-left: 60px;
    }

    .roadmap-marker {
        left: 10px;
        width: 25px;
        height: 25px;
        font-size: 0.9rem;
    }

    .roadmap-timeline::before {
        left: 22px;
    }

    .roadmap-content {
        padding: 1.2rem;
    }

    .roadmap-header h3 {
        font-size: 1.1rem;
    }

    .phase-section {
        padding: 1rem;
    }

    .phase-title {
        font-size: 0.95rem;
    }

    .roadmap-content li {
        font-size: 0.85rem;
    }

    .expand-icon {
        font-size: 1.3rem;
        width: 25px;
        height: 25px;
    }
}

@media (max-width: 480px) {
    .roadmap-item {
        padding-left: 50px;
    }

    .roadmap-marker {
        left: 8px;
        width: 20px;
        height: 20px;
        font-size: 0.8rem;
    }

    .roadmap-timeline::before {
        left: 17px;
    }

    .roadmap-content {
        padding: 1rem;
    }

    .roadmap-header h3 {
        font-size: 0.8rem;
    }

    .phase-section {
        padding: 0.8rem;
    }

    .roadmap-content li {
        font-size: 0.8rem;
    }

    .roadmap-summary p {
        font-size: 0.85rem;
    }
}

/* 白皮书导航样式 */
.whitepaper-nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 229, 255, 0.2);
}

.whitepaper-nav .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0rem 0;
    flex-direction: row;
}

.whitepaper-nav .nav-logo {
    display: flex;
    align-items: center;
    gap: 0rem;
}

.whitepaper-nav .nav-logo img {
    width: 40px;
    height: 40px;
}

.whitepaper-nav .nav-logo span {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
}

.whitepaper-nav .nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.whitepaper-nav .nav-link {
    color: #00e5ff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.whitepaper-nav .nav-link:hover {
    color: #fff;
}

.whitepaper-nav .nav-link[href="/"] {
    color: #fff;
}

.whitepaper-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: #00e5ff;
    transition: width 0.3s ease;
}

.whitepaper-nav .nav-link:hover::after {
    width: 100%;
}

.whitepaper-nav .nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.whitepaper-nav .nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.whitepaper-nav .nav-toggle.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.whitepaper-nav .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.whitepaper-nav .nav-toggle.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* 白皮书移动端导航 */
@media (max-width: 768px) {
    .whitepaper-nav .nav-toggle {
        display: flex;
    }

    .whitepaper-nav .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1.5rem;
        backdrop-filter: blur(20px);
        border-top: 1px solid rgba(0, 229, 255, 0.2);
        z-index: 999;
    }

    .whitepaper-nav .nav-menu.active {
        left: 0;
    }

    .whitepaper-nav .nav-link {
        font-size: 1.1rem;
        padding: 0.5rem 0;
        opacity: 0;
        transform: translateX(-20px);
        transition: all 0.3s ease;
    }

    .whitepaper-nav .nav-menu.active .nav-link {
        opacity: 1;
        transform: translateX(0);
    }

    .whitepaper-nav .nav-logo span {
        font-size: 1rem;
    }

    /* 修复白皮书页面顶部间距 */
    .whitepaper-header {
        margin-top: 0;
    }



    .whitepaper-nav .nav-menu.active .nav-link:nth-child(1) {
        transition-delay: 0.1s;
    }

    .whitepaper-nav .nav-menu.active .nav-link:nth-child(2) {
        transition-delay: 0.2s;
    }

    .whitepaper-nav .nav-menu.active .nav-link:nth-child(3) {
        transition-delay: 0.3s;
    }

    .whitepaper-nav .nav-menu.active .nav-link:nth-child(4) {
        transition-delay: 0.4s;
    }

    .whitepaper-nav .nav-menu.active .nav-link:nth-child(5) {
        transition-delay: 0.5s;
    }
}

/* Token Guide Modal Styles */
.token-guide-modal {
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
}

.token-guide-content {
    padding: 1rem 0;
}

.guide-intro {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.1) 0%, rgba(25, 118, 210, 0.1) 100%);
    border-radius: 12px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.guide-intro p {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.6;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 2rem;
}

.guide-step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.guide-step:hover {
    background: rgba(0, 229, 255, 0.05);
    border-color: rgba(0, 229, 255, 0.2);
    transform: translateY(-2px);
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: #000;
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.3);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.step-content p {
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.step-image-container {
    margin-top: 1rem;
    text-align: center;
}

.guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(0, 229, 255, 0.2);
    background: rgba(255, 255, 255, 0.02);
    min-height: 200px;
    display: block;
}

.guide-image.lazy-load {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.1) 0%, rgba(25, 118, 210, 0.1) 100%);
    position: relative;
}

.guide-image.lazy-load::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 229, 255, 0.3);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.guide-image.lazy-load::after {
    content: '加载中...';
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
}

.guide-image.loaded {
    background: rgba(255, 255, 255, 0.02);
}

.guide-image.loaded::before,
.guide-image.loaded::after {
    display: none;
}

.guide-image.error {
    background: linear-gradient(135deg, rgba(255, 87, 87, 0.1) 0%, rgba(255, 152, 0, 0.1) 100%);
}

.guide-image.error::before {
    content: '⚠';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    color: #ff5757;
    animation: none;
    border: none;
    width: auto;
    height: auto;
}

.guide-image.error::after {
    content: '图片加载失败';
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translateX(-50%);
    color: #ff5757;
    font-size: 0.9rem;
    font-weight: 500;
}

@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.guide-image:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 229, 255, 0.2);
    border-color: rgba(0, 229, 255, 0.4);
}

.guide-image.enlarged {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1.5);
    z-index: 10000;
    max-width: 90vw;
    max-height: 90vh;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.guide-image.enlarged::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: -1;
    backdrop-filter: blur(5px);
}

.token-details {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.token-info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.token-info-item:last-child {
    border-bottom: none;
}

.token-label {
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 120px;
    font-size: 0.9rem;
}

.token-value {
    flex: 1;
    background: rgba(0, 229, 255, 0.1);
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    word-break: break-all;
}

.token-value:hover {
    background: rgba(0, 229, 255, 0.2);
    transform: translateY(-1px);
}

.copy-btn-small {
    background: var(--primary-color);
    border: none;
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    color: #000;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
}

.copy-btn-small:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.3);
}

.copy-btn-small:active {
    transform: scale(0.95);
}

.guide-footer {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1) 0%, rgba(255, 152, 0, 0.1) 100%);
    border-radius: 16px;
    border: 1px solid rgba(255, 193, 7, 0.2);
}

.need-help p {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-support-btn {
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    color: #000;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
}

.contact-support-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 193, 7, 0.4);
    background: linear-gradient(135deg, #ffcc33 0%, #ffaa00 100%);
}

.contact-support-btn i {
    font-size: 1.1rem;
}

/* Responsive Design for Token Guide */
@media (max-width: 768px) {
    .token-guide-modal {
        width: 98%;
        margin: 1%;
        max-height: 95vh;
    }

    .guide-step {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .step-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        align-self: flex-start;
    }

    .step-content h4 {
        font-size: 1.1rem;
    }

    .step-content p {
        font-size: 0.9rem;
    }

    .guide-image {
        min-height: 150px;
    }

    .guide-image.lazy-load::before {
        width: 30px;
        height: 30px;
    }

    .guide-image.lazy-load::after {
        font-size: 0.8rem;
    }

    .guide-image.enlarged {
        transform: translate(-50%, -50%) scale(1.2);
        max-width: 95vw;
        max-height: 80vh;
    }

    .token-info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .token-label {
        min-width: auto;
        font-size: 0.85rem;
    }

    .token-value {
        width: 100%;
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
    }

    .copy-btn-small {
        align-self: flex-end;
        margin-top: 0.5rem;
    }

    .guide-intro {
        padding: 1rem;
    }

    .guide-intro p {
        font-size: 1rem;
    }

    .contact-support-btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .token-guide-modal {
        width: 100%;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
    }

    .guide-step {
        padding: 0.8rem;
        margin: 0 -0.5rem;
    }

    .step-number {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }

    .step-content h4 {
        font-size: 1rem;
    }

    .step-content p {
        font-size: 0.85rem;
    }

    .guide-image {
        min-height: 120px;
    }

    .guide-image.lazy-load::before {
        width: 25px;
        height: 25px;
    }

    .guide-image.lazy-load::after {
        font-size: 0.75rem;
    }

    .guide-image.enlarged {
        transform: translate(-50%, -50%) scale(1);
        max-width: 100vw;
        max-height: 70vh;
        border-radius: 0;
    }

    .token-details {
        padding: 1rem;
        margin: 1rem -0.5rem;
    }

    .token-value {
        font-size: 0.75rem;
        padding: 0.3rem 0.5rem;
    }

    .copy-btn-small {
        min-width: 28px;
        height: 28px;
        font-size: 0.7rem;
    }

    .guide-footer {
        padding: 1.5rem 1rem;
        margin: 0 -0.5rem;
    }

    .need-help p {
        font-size: 1rem;
    }

    .contact-support-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        width: 100%;
        justify-content: center;
    }
}

/* Animation for copy feedback */
.token-value.copied {
    background: rgba(76, 175, 80, 0.2);
    color: #4caf50;
}

.copy-btn-small.copied {
    background: #4caf50;
    color: white;
}

/* Image overlay for enlarged state */
.image-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    cursor: pointer;
}

.image-overlay.hidden {
    display: none;
}

/* 主页面导航菜单修复 */
@media (max-width: 768px) {
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* 确保导航菜单正确显示 */
    .nav-menu {
        z-index: 1001;
    }

    .nav-menu.active {
        z-index: 1001;
    }
}

/* ========================================
   Pulse Button & CTA Styles
   ======================================== */
.pulse-btn {
    animation: pulseShadow 2s ease infinite;
    position: relative;
    overflow: hidden;
}

.pulse-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.pulse-btn:hover::before {
    left: 100%;
}

@keyframes pulseShadow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
    }

    50% {
        box-shadow: 0 0 40px rgba(0, 229, 255, 0.8), 0 0 60px rgba(255, 215, 0, 0.4);
    }
}

.btn-large {
    padding: 0.6rem 2rem;
    font-size: 1rem;
    font-weight: 500;
}

/* ========================================
   Urgency Banner & Wealth-Focused Styles
   ======================================== */
.urgency-banner {
    background: linear-gradient(90deg, #ff4444 0%, #ff6b6b 50%, #ff4444 100%);
    background-size: 200% 100%;
    animation: urgencyPulse 3s ease infinite;
    padding: 1rem 2rem;
    border-radius: 12px;
    margin: 1.5rem 0;
    text-align: center;
    color: #fff;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 4px 20px rgba(255, 68, 68, 0.4);
}

@keyframes urgencyPulse {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

/* ========================================
   Early Investor Returns Section
   ======================================== */
.early-returns {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 100%);
    padding: 6rem 0;
    position: relative;
}

.early-returns::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/stc/664.webp') center center/cover no-repeat;
    opacity: 0.02;
    pointer-events: none;
}

.returns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.return-card {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(0, 229, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.return-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, transparent 100%);
    pointer-events: none;
}

.return-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 229, 255, 0.5);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.2);
}

.return-card.active-tier {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.05);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.3);
}

.return-card.active-tier::before {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, transparent 100%);
}

.card-badge {
    display: inline-block;
    background: rgba(0, 229, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #00e5ff;
}

.card-badge.hot {
    background: linear-gradient(90deg, #ff4444, #ff6b6b);
    color: #fff;
    animation: badgePulse 2s ease infinite;
}

@keyframes badgePulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.return-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 1.5rem 0;
}

.price-info {
    text-align: center;
}

.price-label {
    display: block;
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 0.5rem;
}

.price-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
}

.arrow-indicator {
    font-size: 2rem;
    color: #00e5ff;
    font-weight: 700;
}

.profit-display {
    background: rgba(0, 255, 0, 0.1);
    border: 2px solid rgba(0, 255, 0, 0.3);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    margin: 1.5rem 0;
}

.profit-label {
    display: block;
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 0.5rem;
}

.profit-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
}

.profit-value.gain {
    color: #00ff00;
}

.profit-value.potential {
    color: #ffd700;
}

.example-calculation {
    text-align: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    margin: 1rem 0;
}

.example-calculation.highlight {
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.3);
}

/* Price Projection */
.price-projection {
    margin: 0rem 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
}

.projection-chart {
    margin: 2rem 0;
}

/* 滑动提示（默认隐藏，仅移动端显示） */
.timeline-scroll-hint {
    display: none;
}

.projection-timeline {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin: 3rem 0;
    position: relative;
    padding: 2rem 0;
}

.projection-timeline::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #00ff00 0%, #00e5ff 50%, #888 100%);
}

.timeline-point {
    flex: 1;
    text-align: center;
    position: relative;
}

.point-marker {
    width: 20px;
    height: 20px;
    background: #888;
    border-radius: 50%;
    margin: 0 auto 1rem;
    position: relative;
    z-index: 1;
    border: 3px solid #000;
}

.timeline-point.completed .point-marker {
    background: #00ff00;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
}

.timeline-point.current .point-marker {
    background: #00e5ff;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
    animation: currentPulse 2s ease infinite;
}

.timeline-point.future .point-marker {
    background: #888;
}

@keyframes currentPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.3);
    }
}

.point-content {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.point-date {
    font-size: 1rem;
    color: #000000;
    font-weight: 700;
}

.point-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;

}

.point-label {
    font-size: 0.9rem;
    color: #00e5ff;
}

/* Calculator CTA Section */
.calculator-cta-section {
    background: linear-gradient(135deg, #0a0a0a 0%, #000000 100%);
    padding: 4rem 0;
    position: relative;
}

.calculator-banner {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
    border: 2px solid rgba(0, 229, 255, 0.3);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.calculator-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 229, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.banner-content {
    position: relative;
    z-index: 1;
}

.banner-content .btn {
    margin-top: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Calculator Modal */
.calculator-modal {
    z-index: 10000;
}

.calculator-modal-content {
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    border: 2px solid rgba(0, 229, 255, 0.3);
}

.calculator-intro {
    color: #ccc;
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.05);
    border-radius: 8px;
    border-left: 4px solid #00e5ff;
}

/* Wealth Calculator (in modal) */
.wealth-calculator {
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
}

.calculator-container {
    max-width: 100%;
    margin: 0;
}

.calculator-input {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.calculator-input label {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #fff;
}

.input-with-slider input[type="number"] {
    width: 100%;
    padding: 1rem;
    font-size: 1.5rem;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(0, 229, 255, 0.3);
    border-radius: 8px;
    color: #fff;
    text-align: center;
    margin-bottom: 1rem;
}

.input-with-slider input[type="range"] {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    outline: none;
}

.input-with-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: #00e5ff;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.calculator-results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
}

.result-item.highlight {
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.3);
}

.result-item.best {
    background: rgba(255, 215, 0, 0.1);
    border: 2px solid rgba(255, 215, 0, 0.5);
}

.result-label {
    font-size: 1rem;
    color: #888;
}

.result-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
}

.result-value.gain {
    color: #00ff00;
}

.result-percent {
    font-size: 1rem;
    color: #ffd700;
    margin-left: 1rem;
}

.calculator-note {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 215, 0, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 8px;
    margin: 1.5rem 0;
}

.calculator-note i {
    color: #ffd700;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.calculator-note p {
    color: #ccc;
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.6;
}

.calculator-cta {
    text-align: center;
    margin-top: 2rem;
}

.calculator-cta .btn {
    width: 100%;
    max-width: 400px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .urgency-banner {
        font-size: 0.9rem;
        padding: 0.8rem 1rem;
    }

    .returns-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .return-card {
        padding: 1.5rem;
    }

    .price-value {
        font-size: 1.5rem;
    }

    .profit-value {
        font-size: 2rem;
    }

    /* 移动端滑动提示 */
    .timeline-scroll-hint {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        padding: 0.5rem 1rem;
        margin: 0 0 1rem 0;
        background: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(25, 118, 210, 0.1));
        border: 1px solid rgba(0, 229, 255, 0.3);
        border-radius: 20px;
        color: var(--accent-color);
        font-size: 0.85rem;
        animation: hintPulse 2s ease infinite;
    }

    .timeline-scroll-hint i:last-child {
        animation: arrowSlide 1.5s ease infinite;
    }

    @keyframes hintPulse {

        0%,
        100% {
            opacity: 0.7;
        }

        50% {
            opacity: 1;
        }
    }

    @keyframes arrowSlide {

        0%,
        100% {
            transform: translateX(0);
        }

        50% {
            transform: translateX(5px);
        }
    }

    /* 移动端横向滚动时间线 */
    .projection-timeline {
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        scroll-padding-right: 16px;
        padding: 2rem 1rem;
        margin: 2rem -1rem;
        gap: 0;
        justify-content: flex-start;
        touch-action: pan-x;
        /* 隐藏滚动条但保持功能 */
        scrollbar-width: thin;
        scrollbar-color: rgba(0, 229, 255, 0.3) transparent;
    }

    .projection-timeline::-webkit-scrollbar {
        height: 4px;
    }

    .projection-timeline::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.05);
        border-radius: 2px;
    }

    .projection-timeline::-webkit-scrollbar-thumb {
        background: rgba(0, 229, 255, 0.3);
        border-radius: 2px;
    }

    .projection-timeline::before {
        /* 保持连接线显示 */
        width: calc(100% - 2rem);
        left: 1rem;
        right: auto;
    }

    .timeline-point {
        flex: 0 0 auto;
        min-width: 120px;
        margin-right: 1rem;
        scroll-snap-align: center;
    }

    .timeline-point:last-child {
        margin-right: 0;
        padding-right: 1rem;
    }

    .point-marker {
        width: 16px;
        height: 16px;
        border: 2px solid #000;
    }

    .point-content {
        gap: 0.2rem;
    }

    .point-date {
        font-size: 1rem;
    }

    .point-price {
        font-size: 1.2rem;
    }

    .point-label {
        font-size: 1rem;
    }

    .calculator-cta-section {
        padding: 2rem 0;
    }

    .calculator-banner {
        padding: 2rem 1.5rem;
    }

    .calculator-banner i {
        font-size: 2rem !important;
    }

    .calculator-banner h3 {
        font-size: 1.5rem;
    }

    .calculator-banner p {
        font-size: 1rem !important;
    }

    .calculator-modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .calculator-input {
        padding: 1rem;
    }

    .result-item {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
        padding: 1rem;
    }

    .result-value {
        font-size: 1.3rem;
    }

    .result-percent {
        margin-left: 0;
        margin-top: 0.25rem;
    }

    .calculator-cta .btn {
        width: 100%;
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .calculator-banner {
        padding: 1.5rem 1rem;
    }

    .banner-content h3 {
        font-size: 1.3rem;
    }

    .banner-content p {
        font-size: 0.9rem !important;
    }

    .calculator-input label {
        font-size: 1rem;
    }

    .input-with-slider input[type="number"] {
        font-size: 1.2rem;
        padding: 0.8rem;
    }

    .result-label {
        font-size: 0.9rem;
    }

    .result-value {
        font-size: 1.2rem;
    }
}

/* ========================================
   Success Stories / Wealth Cases Section
   ======================================== */
.success-stories {
    background: linear-gradient(135deg, #0a0a0a 0%, #000000 100%);
    padding: 6rem 0;
    position: relative;
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.story-card {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(0, 229, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
}

.story-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 229, 255, 0.5);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.2);
}

.story-card.featured {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.05);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.3);
}

.featured-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: linear-gradient(90deg, #ff4444, #ff6b6b);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 700;
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 68, 68, 0.4);
}

.story-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.story-avatar .avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.3);
}

.story-info h4 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.story-info span {
    color: #888;
    font-size: 0.9rem;
}

.investment-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.detail-item {
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.detail-item.highlight {
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.3);
}

.detail-label {
    display: block;
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 0.5rem;
}

.detail-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.detail-value.gain {
    color: #00ff00;
}

.story-quote {
    background: rgba(0, 0, 0, 0.5);
    border-left: 4px solid #00e5ff;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
}

.story-quote p {
    color: #ccc;
    font-style: italic;
    line-height: 1.8;
    margin: 0;
}

.story-cta {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(255, 215, 0, 0.3);
    text-align: center;
}

/* Comparison Table */
.comparison-table {
    margin: 4rem 0;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    border: 2px solid rgba(0, 229, 255, 0.2);
}

.table-container {
    overflow-x: auto;
    margin: 2rem 0;
}

.investment-comparison {
    width: 100%;
    border-collapse: collapse;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    overflow: hidden;
}

.investment-comparison thead {
    background: rgba(0, 229, 255, 0.2);
}

.investment-comparison th {
    padding: 1.2rem;
    text-align: left;
    font-weight: 700;
    color: #00e5ff;
    border-bottom: 2px solid rgba(0, 229, 255, 0.5);
}

.investment-comparison td {
    padding: 1rem 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
}

.investment-comparison tbody tr {
    transition: background 0.3s ease;
}

.investment-comparison tbody tr:hover {
    background: rgba(0, 229, 255, 0.05);
}

.investment-comparison .highlight-row {
    background: rgba(255, 215, 0, 0.1);
    font-weight: 700;
}

.investment-comparison .highlight-row:hover {
    background: rgba(255, 215, 0, 0.15);
}

.investment-comparison .gain {
    color: #00ff00;
    font-weight: 700;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .stories-grid {
        grid-template-columns: 1fr;
    }

    .story-card {
        padding: 1.5rem;
    }

    .story-header {
        flex-direction: column;
        text-align: center;
    }

    .investment-details {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        padding: 1.5rem;
    }

    .investment-comparison {
        font-size: 0.85rem;
    }

    .investment-comparison th,
    .investment-comparison td {
        padding: 0.8rem;
    }
}

/* ========================================
   FAQ Section Styles
   ======================================== */
.faq {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 100%);
    padding: 6rem 0;
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/stc/664.webp') center center/cover no-repeat;
    opacity: 0.03;
    pointer-events: none;
}

.faq .container {
    position: relative;
    z-index: 1;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.faq-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(0, 229, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.faq-item:hover {
    border-color: rgba(0, 229, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 229, 255, 0.1);
}

.faq-item.active {
    border-color: var(--primary-color);
    background: rgba(0, 229, 255, 0.03);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
    flex: 1;
    transition: color 0.3s ease;
}

.faq-item:hover .faq-question h3 {
    color: var(--primary-color);
}

.faq-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
    margin-left: 1rem;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 2rem;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 0 2rem 1.5rem 2rem;
}

.faq-answer p {
    color: #ffffff;
    line-height: 1.8;
    margin: 0;
    font-size: 1rem;
}

.faq-answer strong {
    color: #ffffff;
    font-weight: 600;
}

.faq-answer br {
    margin: 0.5rem 0;
}

/* FAQ：手动添加代币教程按钮（与支付弹窗引导一致） */
.faq-add-token-guide-btn {
    margin-top: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* FAQ Item Animation */
.faq-item {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

.faq-item:nth-child(1) {
    animation-delay: 0.1s;
}

.faq-item:nth-child(2) {
    animation-delay: 0.15s;
}

.faq-item:nth-child(3) {
    animation-delay: 0.2s;
}

.faq-item:nth-child(4) {
    animation-delay: 0.25s;
}

.faq-item:nth-child(5) {
    animation-delay: 0.3s;
}

.faq-item:nth-child(6) {
    animation-delay: 0.35s;
}

.faq-item:nth-child(7) {
    animation-delay: 0.4s;
}

.faq-item:nth-child(8) {
    animation-delay: 0.45s;
}

.faq-item:nth-child(9) {
    animation-delay: 0.5s;
}

.faq-item:nth-child(10) {
    animation-delay: 0.55s;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .faq {
        padding: 4rem 0;
    }

    .faq-container {
        padding: 1rem 0;
    }

    .faq-item {
        margin-bottom: 1rem;
        border-radius: 8px;
    }

    .faq-question {
        padding: 1.2rem 1.5rem;
    }

    .faq-question h3 {
        font-size: 0.8rem;
        line-height: 1.4;
        padding-right: 0.5rem;
    }

    .faq-icon {
        font-size: 1rem;
        margin-left: 0.5rem;
    }

    .faq-answer {
        padding: 0 1.5rem;
    }

    .faq-item.active .faq-answer {
        padding: 0 1.5rem 1.2rem 1.5rem;
    }

    .faq-answer p {
        font-size: 0.95rem;
        line-height: 1.6;
    }
}

/* @media (max-width: 480px) {
    .faq {
        padding: 3rem 0;
    }

    .faq-question {
        padding: 1rem 1.2rem;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .faq-icon {
        font-size: 0.9rem;
    }

    .faq-answer {
        padding: 0 1.2rem;
    }

    .faq-item.active .faq-answer {
        padding: 0 1.2rem 1rem 1.2rem;
    }

    .faq-answer p {
        font-size: 0.9rem;
    }
} */