/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066ff;
    --secondary-color: #00d4ff;
    --accent-color: #7c3aed;
    --dark-bg: #0a0e1a;
    --card-bg: #151a2d;
    --card-hover: #1a2133;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #6b7280;
    --border-color: #2d3748;
    --border-light: rgba(45, 55, 72, 0.5);
    --gradient-blue: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
    --gradient-purple: linear-gradient(135deg, #7c3aed 0%, #00d4ff 100%);
    --gradient-dark: linear-gradient(180deg, #0a0e1a 0%, #151a2d 100%);
    --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #1a1f35 100%);
    --shadow: 0 4px 20px rgba(0, 102, 255, 0.15);
    --shadow-lg: 0 10px 40px rgba(0, 102, 255, 0.2);
    --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* CSS 图标 */
.icon-lock::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-lock::after {
    content: '🔒';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-shield::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-shield::after {
    content: '🛡️';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-chain::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-chain::after {
    content: '⛓️';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-transfer::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-transfer::after {
    content: '💸';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-exchange::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-exchange::after {
    content: '🔄';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-users::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-users::after {
    content: '👥';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-mobile::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-mobile::after {
    content: '📱';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-desktop::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-desktop::after {
    content: '💻';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

.icon-browser::before {
    content: '';
    display: block;
    width: 48px;
    height: 48px;
    background: var(--gradient-blue);
    border-radius: 50%;
    margin: 0 auto 15px;
    position: relative;
}

.icon-browser::after {
    content: '🌐';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
}

/* 导航栏 */
.navbar {
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span:first-child {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo .tagline {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 400;
    opacity: 0.8;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 15px;
    padding: 8px 16px;
    border-radius: 8px;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
    background: rgba(0, 102, 255, 0.1);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-blue);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 60%;
}

.download-btn {
    background: var(--gradient-blue);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.4);
}

/* 首屏横幅 */
.hero {
    padding: 180px 0 120px;
    text-align: center;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at center top, rgba(0, 102, 255, 0.12) 0%, transparent 50%);
    pointer-events: none;
    animation: heroGlow 8s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-20px);
        opacity: 1;
    }
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.5;
}

.hero h1 {
    font-size: 56px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 50%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    position: relative;
    z-index: 1;
}

.hero .subtitle {
    font-size: 19px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 1;
}

.btn {
    padding: 16px 42px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
}

.btn.primary {
    background: var(--gradient-blue);
    color: white;
    box-shadow: 0 6px 24px rgba(0, 102, 255, 0.4);
}

.btn.primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 102, 255, 0.5);
}

.btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn.secondary:hover {
    background: rgba(0, 102, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.btn.tertiary {
    background: rgba(255, 255, 255, 0.08);
    color: white;
    border: 1px solid var(--border-light);
}

.btn.tertiary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--text-secondary);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(0, 102, 255, 0.08);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 核心优势 */
.features {
    padding: 120px 0;
}

.section-title {
    font-size: 42px;
    text-align: center;
    margin-bottom: 16px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 70px;
    font-size: 17px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-blue);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-icon {
    font-size: 0;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 16px;
    font-size: 21px;
    font-weight: 700;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 15px;
}

/* 智能交易加速 */
.acceleration {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--card-bg) 0%, var(--dark-bg) 100%);
    position: relative;
    overflow: hidden;
}

.acceleration::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.acceleration-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.acceleration-text h2 {
    font-size: 42px;
    margin-bottom: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.acceleration-text p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 17px;
    line-height: 1.8;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 14px 0;
    color: var(--text-secondary);
    font-size: 16px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.feature-list li:hover {
    color: var(--text-primary);
    padding-left: 8px;
}

.feature-list li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 12px;
    font-size: 18px;
}

.acceleration-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.speed-indicator {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.speed-circle {
    width: 250px;
    height: 250px;
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    position: absolute;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
}

.speed-text {
    font-size: 72px;
    font-weight: bold;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.speed-label {
    color: var(--text-secondary);
    margin-top: 10px;
    position: relative;
    z-index: 1;
}

/* 下载区域 */
.download {
    padding: 120px 0;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.download-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-purple);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.download-card:hover::before {
    transform: scaleX(1);
}

.download-card:hover {
    transform: translateY(-8px);
    border-color: var(--secondary-color);
    box-shadow: var(--shadow-lg);
    background: var(--card-hover);
}

.download-icon {
    font-size: 0;
    margin-bottom: 15px;
}

.download-card h3 {
    margin-bottom: 12px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.download-card p {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 15px;
}

.download-desc {
    margin-bottom: 24px;
    line-height: 1.6;
}

.download-link {
    background: var(--gradient-blue);
    color: white;
    padding: 14px 32px;
    border-radius: 25px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.3);
    border: none;
    cursor: pointer;
}

.download-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.4);
}

/* 用户评价 */
.testimonials {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--card-bg) 0%, var(--dark-bg) 100%);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    position: relative;
    z-index: 1;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 36px 28px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 64px;
    font-family: Georgia, serif;
    color: var(--primary-color);
    opacity: 0.3;
    line-height: 1;
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--primary-color);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 28px;
    position: relative;
}

.testimonial-avatar::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: var(--gradient-blue);
    opacity: 0.3;
    z-index: -1;
}

.avatar-dev { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.avatar-investor { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.avatar-finance { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }

.testimonial-text {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 24px;
    line-height: 1.8;
    font-size: 15px;
    position: relative;
    z-index: 1;
}

.testimonial-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 16px;
}

.testimonial-role {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 4px;
}

/* 常见问题 */
.faq {
    padding: 120px 0;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-color);
    background: var(--card-hover);
}

.faq-item.active {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.15);
}

.faq-question {
    padding: 24px 28px;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    position: relative;
    transition: color 0.3s ease;
}

.faq-item:hover .faq-question {
    color: var(--primary-color);
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 28px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 28px;
    color: var(--primary-color);
    font-weight: 300;
    transition: all 0.3s ease;
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease;
    color: var(--text-secondary);
    padding: 0 28px;
    font-size: 15px;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 28px 28px;
}

/* 底部 */
.footer {
    background: linear-gradient(180deg, var(--card-bg) 0%, #0d121d 100%);
    padding: 70px 0 30px;
    border-top: 1px solid var(--border-light);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--secondary-color), transparent);
    opacity: 0.5;
}

.footer.simple {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h3 {
    margin-bottom: 24px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
    display: inline-block;
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-light);
}

.social-links a:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: rgba(0, 102, 255, 0.1);
}

/* 下载页面 */
.download-page {
    padding: 140px 0 100px;
    min-height: 100vh;
    background: var(--dark-bg);
}

.page-title {
    font-size: 48px;
    text-align: center;
    margin-bottom: 16px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 70px;
    font-size: 17px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-section {
    margin-bottom: 90px;
}

.download-section h2 {
    margin-bottom: 36px;
    font-size: 34px;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    margin-bottom: 36px;
}

.platform-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.platform-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-blue);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.platform-card:hover::before {
    transform: scaleX(1);
}

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

.platform-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.platform-card h3 {
    margin-bottom: 10px;
}

.platform-card p {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.platform-card .version {
    color: var(--primary-color);
    font-weight: 600;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}

.download-btn.large {
    background: var(--gradient-blue);
    color: white;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    display: block;
    transition: all 0.3s;
}

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

.download-btn.large.secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
}

.download-features {
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
}

.download-features h3 {
    margin-bottom: 20px;
}

.download-features ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 10px;
}

.download-features li {
    color: var(--text-secondary);
}

.verify-section {
    margin-bottom: 80px;
}

.verify-section h2 {
    margin-bottom: 15px;
}

.verify-desc {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hash-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
}

.hash-box h3 {
    margin-bottom: 20px;
}

.hash-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.hash-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

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

.hash-item code {
    background: var(--dark-bg);
    padding: 10px 15px;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    word-break: break-all;
    color: var(--text-secondary);
}

.verify-instructions {
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 20px 30px;
}

.verify-instructions h4 {
    margin-bottom: 15px;
}

.verify-instructions p {
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    margin-bottom: 5px;
}

.install-guide {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 40px;
}

.install-guide h2 {
    margin-bottom: 30px;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.guide-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h4 {
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-secondary);
}

/* 404 页面 */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px 20px;
    position: relative;
    background: var(--dark-bg);
}

.error-page::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.error-content {
    text-align: center;
    max-width: 520px;
    position: relative;
    z-index: 1;
}

.error-code {
    font-size: 140px;
    font-weight: 900;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 24px;
}

.error-illustration {
    margin-bottom: 30px;
}

.floating-icon {
    font-size: 80px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.error-title {
    font-size: 38px;
    margin-bottom: 16px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.error-message {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 16px;
    line-height: 1.7;
}

.error-subtitle {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 500;
}

.error-reasons {
    list-style: none;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.error-reasons li {
    padding: 10px 0;
    font-size: 15px;
}

.error-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.help-section {
    color: var(--text-secondary);
    padding: 24px 28px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    font-size: 15px;
}

.help-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.help-section a:hover {
    padding-left: 4px;
}

.help-section span {
    color: var(--text-muted);
}

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

.error-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    overflow: hidden;
}

.decoration-item {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.3;
}

.item-1 {
    top: 20%;
    left: 10%;
    animation: float 4s ease-in-out infinite;
}

.item-2 {
    top: 60%;
    right: 15%;
    animation: float 5s ease-in-out infinite 0.5s;
}

.item-3 {
    bottom: 20%;
    left: 20%;
    animation: float 4.5s ease-in-out infinite 1s;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 48px;
    }

    .hero-stats {
        gap: 40px;
    }

    .acceleration-content {
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 16px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .nav-links a {
        padding: 6px 12px;
        font-size: 14px;
    }

    .hero {
        padding: 140px 0 100px;
    }

    .hero h1 {
        font-size: 38px;
    }

    .hero .subtitle {
        font-size: 17px;
        margin-bottom: 36px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-stats {
        gap: 20px;
        flex-direction: column;
    }

    .stat-item {
        width: 100%;
        max-width: 300px;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 15px;
        margin-bottom: 50px;
    }

    .feature-grid,
    .download-grid,
    .testimonial-grid,
    .platform-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .acceleration-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .acceleration-image {
        order: -1;
    }

    .speed-indicator {
        width: 220px;
        height: 220px;
    }

    .speed-circle {
        width: 180px;
        height: 180px;
    }

    .speed-text {
        font-size: 56px;
    }

    .faq-list {
        max-width: 100%;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

    .hero .subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        margin-bottom: 50px;
    }

    .btn {
        padding: 14px 32px;
        font-size: 14px;
    }

    .section-title {
        font-size: 28px;
    }

    .feature-card,
    .download-card,
    .testimonial-card {
        padding: 28px 20px;
    }

    .faq-item.active .faq-answer {
        padding: 0 20px 20px;
    }

    .faq-question {
        padding: 20px 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .social-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}