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

:root {
    --primary-color: #a855f7;
    --secondary-color: #8b5cf6;
    --accent-color: #7c3aed;
    --gold-color: #c084fc;
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --bg-card: rgba(26, 26, 26, 0.8);
    --text-primary: #ffffff;
    --text-secondary: #e5e5e5;
    --text-muted: #999999;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    /* 白皮书风格增强 */
    --whitepaper-glow: rgba(168, 85, 247, 0.15);
    --whitepaper-shadow: rgba(0, 0, 0, 0.5);
    --section-spacing: 120px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 背景粒子画布 ===== */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== 背景渐变动画 ===== */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 60% 40%, rgba(168, 85, 247, 0.05) 0%, transparent 60%);
    animation: backgroundMove 25s ease-in-out infinite;
    z-index: 0;
    pointer-events: none;
}

/* 白皮书风格背景网格 */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(168, 85, 247, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168, 85, 247, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

@keyframes backgroundMove {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(5%, 5%) rotate(120deg);
    }
    66% {
        transform: translate(-5%, -5%) rotate(240deg);
    }
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 15px 0;
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5),
                0 0 20px rgba(168, 85, 247, 0.15);
    backdrop-filter: blur(20px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    position: relative;
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 900;
    color: var(--primary-color);
    text-shadow: 0 0 20px var(--primary-color);
    cursor: pointer;
}

.logo-text {
    animation: none !important;
    transform: none !important;
}

.logo-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    filter: blur(15px);
    opacity: 0.5;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    position: relative;
    transition: color 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

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

.download-dropdown {
    position: relative;
}

/* 白皮书按钮 - 导航栏 */
.whitepaper-btn {
    position: relative;
    padding: 12px 24px;
    background: transparent;
    border: 2px solid var(--primary-color);
    border-radius: 30px;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.whitepaper-btn:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-dark);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.4),
                0 0 20px var(--whitepaper-glow);
}

.whitepaper-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.whitepaper-btn:hover .whitepaper-icon {
    transform: scale(1.1);
}

.download-btn {
    position: relative;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 30px;
    color: var(--bg-dark);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.4);
}

.dropdown-arrow {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.download-dropdown.active .dropdown-arrow {
    transform: rotate(180deg);
}

.btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.download-btn:hover .btn-glow {
    width: 300px;
    height: 300px;
}

.download-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: 12px;
    padding: 8px;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

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

.download-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-light);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 600;
}

.download-option:hover {
    background: rgba(168, 85, 247, 0.2);
    color: var(--primary-color);
    transform: translateX(5px);
}

.platform-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    border-radius: 3px;
}

/* ===== Hero区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    z-index: 1;
    overflow: hidden;
}

/* 白皮书风格Hero区域装饰 */
.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    animation: heroGlow 8s ease-in-out infinite;
    z-index: -1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: 10%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(50px);
    animation: heroGlow 10s ease-in-out infinite reverse;
    z-index: -1;
}

@keyframes heroGlow {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.9;
    }
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    text-align: center;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 900;
    margin-bottom: 30px;
    position: relative;
    line-height: 1.2;
}

.title-line {
    display: block;
    color: var(--text-secondary);
    font-size: 0.5em;
    font-weight: 400;
    margin-bottom: 10px;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.title-main {
    display: block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    opacity: 0;
    animation: fadeInUp 1s ease 0.8s forwards;
}

.title-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    filter: blur(60px);
    opacity: 0.3;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 24px);
    color: var(--text-secondary);
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeInUp 1s ease 1.1s forwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 1s ease 1.4s forwards;
}

.btn-primary,
.btn-secondary {
    position: relative;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Rajdhani', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-dark);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.3);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 50px rgba(168, 85, 247, 0.6),
                0 0 30px var(--whitepaper-glow);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    box-shadow: 0 10px 30px rgba(168, 85, 247, 0.3);
}

/* 白皮书按钮 - Hero区域 */
.btn-whitepaper {
    position: relative;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 700;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    background: transparent;
    color: var(--primary-color);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Rajdhani', sans-serif;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(168, 85, 247, 0.2);
}

.btn-whitepaper:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-dark);
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 18px 50px rgba(168, 85, 247, 0.6),
                0 0 30px var(--whitepaper-glow);
}

.btn-whitepaper .btn-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.btn-whitepaper:hover .btn-icon {
    transform: scale(1.15) rotate(5deg);
}

.btn-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 80px;
    flex-wrap: wrap;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 35px 45px;
    text-align: center;
    min-width: 150px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* 白皮书风格统计卡片装饰 */
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stat-card:hover {
    transform: translateY(-12px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 50px rgba(168, 85, 247, 0.35),
                0 0 30px var(--whitepaper-glow);
}

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

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 48px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0;
    animation: fadeIn 1s ease 2s forwards;
    width: 30px;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    position: relative;
    flex-shrink: 0;
    box-sizing: border-box;
}

.wheel {
    width: 4px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

.arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 30px;
    flex-shrink: 0;
    box-sizing: border-box;
    position: relative;
    left: -7px;
}

.arrow span {
    display: block;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    box-sizing: border-box;
    transform-origin: 50% 50%;
    transform: rotate(45deg);
    animation: arrow 2s infinite;
    margin: 0 auto;
}

.arrow span:nth-child(2) {
    animation-delay: 0.2s;
}

.arrow span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes arrow {
    0%, 100% { opacity: 0; transform: rotate(45deg) translateY(-10px); }
    50% { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== 通用区块样式 ===== */
section {
    position: relative;
    padding: var(--section-spacing) 0;
    z-index: 1;
}

/* 白皮书风格分隔线 */
section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.3;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
}

/* 白皮书风格装饰元素 */
.section-header::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    border-radius: 2px;
    opacity: 0.6;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 900;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.title-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-underline {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--secondary-color), var(--primary-color), transparent);
    border-radius: 2px;
    box-shadow: 0 0 15px var(--primary-color);
    animation: underlineGlow 3s ease-in-out infinite;
}

@keyframes underlineGlow {
    0%, 100% {
        opacity: 0.8;
        box-shadow: 0 0 15px var(--primary-color);
    }
    50% {
        opacity: 1;
        box-shadow: 0 0 25px var(--primary-color);
    }
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* ===== 项目介绍 ===== */
.about {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 45px 35px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* 白皮书风格卡片光效 */
.feature-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    border-radius: 24px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.4s ease;
    filter: blur(8px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-12px) scale(1.03);
    border-color: var(--primary-color);
    box-shadow: 0 25px 70px rgba(168, 85, 247, 0.4), 
                0 0 40px var(--whitepaper-glow);
}

.feature-card:hover::after {
    opacity: 0.3;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    color: var(--primary-color);
    filter: drop-shadow(0 0 10px var(--primary-color));
    transition: transform 0.3s ease;
    position: relative;
    animation: iconFloat 3s ease-in-out infinite;
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: iconGlow 2s ease-in-out infinite;
    z-index: -1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.2) rotate(10deg);
    filter: drop-shadow(0 0 20px var(--primary-color));
}

.feature-card:hover .feature-icon::before {
    animation: iconGlow 1s ease-in-out infinite;
    width: 120px;
    height: 120px;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
    stroke-width: 2;
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes iconGlow {
    0%, 100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes iconPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.feature-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== 预约系统 ===== */
.reservation {
    background: var(--bg-dark);
}

.reservation-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.reservation-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.countdown-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 45px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.countdown-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(168, 85, 247, 0.1), transparent);
    animation: rotateBorder 10s linear infinite;
}

.countdown-card::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: var(--glass-bg);
    border-radius: 18px;
    z-index: 1;
}

.countdown-card > * {
    position: relative;
    z-index: 2;
}

@keyframes rotateBorder {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.countdown-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.countdown-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 48px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: 80px;
    min-width: 80px;
    padding: 15px;
    background-color: rgba(168, 85, 247, 0.1);
    border-radius: 10px;
    border: 1px solid var(--primary-color);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.countdown-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.countdown-separator {
    font-size: 36px;
    color: var(--primary-color);
    font-weight: 700;
}

.reservation-stats {
    display: flex;
    gap: 20px;
}

.reservation-stat {
    flex: 1;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
}

.reservation-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 42px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.reservation-label {
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.reservation-form-container {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 45px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

/* 白皮书风格表单容器装饰 */
.reservation-form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--primary-color));
    border-radius: 24px 24px 0 0;
    opacity: 0.6;
}

.reservation-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px;
    font-family: 'Rajdhani', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.input-glow {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

.form-group input:focus ~ .input-glow,
.form-group textarea:focus ~ .input-glow {
    width: 100%;
}

.btn-submit {
    position: relative;
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 50px;
    color: var(--bg-dark);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Rajdhani', sans-serif;
    margin-top: 10px;
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.3);
}

.btn-submit:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 50px rgba(168, 85, 247, 0.6),
                0 0 30px var(--whitepaper-glow);
}

/* ===== 未来规划 ===== */
.roadmap {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.roadmap-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.roadmap-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    transform: translateX(-50%);
    border-radius: 2px;
    z-index: 1;
}

.roadmap-items {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 60px;
    z-index: 2;
}

.roadmap-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 40px;
}

.roadmap-item:nth-child(odd) {
    flex-direction: row;
}

.roadmap-item:nth-child(even) {
    flex-direction: row-reverse;
}

.roadmap-marker {
    position: relative;
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    z-index: 2;
}

.marker-dot {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    border: 4px solid var(--bg-dark);
    position: relative;
    z-index: 2;
    animation: markerRotate 3s ease-in-out infinite;
}

.marker-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: 50%;
    filter: blur(15px);
    opacity: 0.6;
    animation: pulse 2s ease-in-out infinite;
}

.marker-glow2 {
    position: absolute;
    top: 50%;
    right: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: 50%;
    filter: blur(15px);
    opacity: 0.6;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes markerRotate {
    0%, 100% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.1);
    }
}

.roadmap-content {
    flex: 1;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 35px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

/* 白皮书风格路线图卡片左侧装饰 */
.roadmap-content::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.roadmap-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.1), transparent);
    transition: left 0.5s ease;
}

.roadmap-item:hover .roadmap-content::before {
    left: 100%;
}

.roadmap-item:hover .roadmap-content {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(168, 85, 247, 0.35),
                0 0 30px var(--whitepaper-glow);
}

.roadmap-item:hover .roadmap-content::after {
    opacity: 1;
}

.roadmap-date {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.roadmap-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.roadmap-desc {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.roadmap-list {
    list-style: none;
    padding: 0;
}

.roadmap-list li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.roadmap-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ===== 合作商 ===== */
.partners {
    background: var(--bg-dark);
    padding: 100px 0;
    overflow: hidden;
}

.partners-scroll-container {
    margin-top: 60px;
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(
        to right,
        transparent,
        black 10%,
        black 90%,
        transparent
    );
    -webkit-mask-image: linear-gradient(
        to right,
        transparent,
        black 10%,
        black 90%,
        transparent
    );
}

.partners-scroll-wrapper {
    width: 100%;
    overflow: hidden;
}

.partners-scroll-track {
    display: flex;
    gap: 30px;
    animation: scroll-partners 30s linear infinite;
    width: fit-content;
}

.partners-scroll-track:hover {
    animation-play-state: paused;
}

@keyframes scroll-partners {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.partner-item {
    flex-shrink: 0;
    width: 200px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
}

.partner-item:hover {
    transform: translateY(-12px) scale(1.06);
    border-color: var(--primary-color);
    box-shadow: 0 25px 70px rgba(168, 85, 247, 0.45),
                0 0 40px var(--whitepaper-glow);
    background: rgba(168, 85, 247, 0.12);
}

.partner-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    border-radius: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.partner-logo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.partner-icon {
    font-family: 'Orbitron', sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--bg-dark);
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.partner-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 10px;
    transition: color 0.3s ease;
}

.partner-item:hover .partner-name {
    color: var(--primary-color);
}

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.footer-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(168, 85, 247, 0.3);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-heading {
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
}

/* ===== 响应式设计 ===== */
/* 通用移动端优化 */
@media (max-width: 768px) {
    * {
        -webkit-tap-highlight-color: transparent;
    }

    body {
        overflow-x: hidden;
    }

    img {
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 992px) {
    .container {
        padding: 0 20px;
    }

    .hero-stats {
        gap: 25px;
    }

    .stat-card {
        min-width: 140px;
    }

    .reservation-content {
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .navbar {
        padding: 15px 0;
    }

    .nav-container {
        padding: 0 15px;
    }

    .logo {
        font-size: 18px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        gap: 30px;
        transition: left 0.3s ease;
        backdrop-filter: blur(20px);
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .nav-actions {
        gap: 8px;
    }

    .download-dropdown {
        order: -1;
    }

    .download-menu {
        right: 0;
        left: auto;
        min-width: 160px;
    }

    .download-btn {
        padding: 10px 16px;
        font-size: 12px;
    }

    /* Hero区域 */
    .hero {
        padding: 100px 15px 60px;
        min-height: auto;
    }

    .hero-title {
        font-size: clamp(32px, 10vw, 64px);
        margin-bottom: 20px;
    }

    .hero-subtitle {
        font-size: clamp(16px, 4vw, 20px);
        margin-bottom: 30px;
        padding: 0 10px;
    }

    .hero-buttons {
        gap: 15px;
        padding: 0 10px;
    }

    .btn-primary,
    .btn-secondary,
    .btn-whitepaper {
        padding: 14px 30px;
        font-size: 14px;
    }
    
    .whitepaper-btn {
        padding: 10px 16px;
        font-size: 12px;
        margin-right: 10px;
    }
    
    .whitepaper-icon {
        width: 16px;
        height: 16px;
    }

    .hero-stats {
        gap: 15px;
        margin-top: 50px;
        flex-wrap: wrap;
        padding: 0 10px;
    }

    .stat-card {
        min-width: 100px;
        padding: 20px 25px;
        flex: 1 1 calc(50% - 10px);
        max-width: calc(50% - 10px);
    }

    .stat-number {
        font-size: 36px;
    }

    .stat-label {
        font-size: 12px;
    }

    .scroll-indicator {
        bottom: 30px;
    }

    /* 区块通用 */
    section {
        padding: 70px 0;
    }
    
    section::before {
        width: 60px;
    }

    .section-header {
        margin-bottom: 50px;
    }
    
    .section-header::after {
        bottom: -25px;
        width: 50px;
    }

    .section-title {
        font-size: clamp(28px, 6vw, 40px);
    }

    .section-subtitle {
        font-size: 16px;
        padding: 0 15px;
    }

    /* 特性卡片 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 40px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
    }

    .feature-title {
        font-size: 20px;
    }

    .feature-desc {
        font-size: 14px;
    }

    /* 预约系统 */
    .reservation-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .countdown-card {
        padding: 30px 20px;
    }

    .countdown-title {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .countdown {
        gap: 8px;
    }

    .countdown-number {
        font-size: 36px;
        width: 65px;
        min-width: 65px;
        padding: 12px;
    }

    .countdown-label {
        font-size: 12px;
        margin-top: 8px;
    }

    .countdown-separator {
        font-size: 28px;
    }

    .reservation-stats {
        flex-direction: column;
        gap: 15px;
    }

    .reservation-stat {
        padding: 25px 20px;
    }

    .reservation-number {
        font-size: 36px;
    }

    .reservation-label {
        font-size: 12px;
    }

    .reservation-form-container {
        padding: 30px 20px;
    }

    .form-group {
        margin-bottom: 20px;
    }

    .form-group input,
    .form-group textarea {
        padding: 12px 16px;
        font-size: 14px;
    }

    .btn-submit {
        padding: 16px 30px;
        font-size: 14px;
        width: 100%;
    }

    /* 路线图 */
    .roadmap-item {
        flex-direction: column !important;
        gap: 20px;
    }

    .roadmap-line {
        left: 30px;
    }

    .roadmap-marker {
        position: absolute;
        left: 0;
        width: 50px;
        height: 50px;
    }

    .roadmap-content {
        margin-left: 70px;
        padding: 25px 20px;
    }

    .roadmap-date {
        font-size: 14px;
    }

    .roadmap-title {
        font-size: 20px;
    }

    .roadmap-desc {
        font-size: 14px;
    }

    .roadmap-list {
        font-size: 13px;
    }

    /* 合作伙伴 */
    .partner-item {
        width: 160px;
        padding: 25px 15px;
    }

    .partner-logo {
        width: 80px;
        height: 80px;
    }

    .partner-icon {
        font-size: 24px;
    }

    .partner-name {
        font-size: 16px;
    }

    .partners-scroll-track {
        gap: 20px;
        animation-duration: 25s;
    }

    /* 页脚 */
    .footer-content {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }

    .footer-section {
        width: 100%;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    .navbar {
        padding: 12px 0;
    }

    .nav-container {
        padding: 0 12px;
    }

    .logo {
        font-size: 16px;
    }

    .nav-menu {
        top: 60px;
        height: calc(100vh - 60px);
        padding-top: 40px;
        gap: 25px;
    }

    .download-btn {
        padding: 8px 14px;
        font-size: 11px;
    }

    /* Hero区域 */
    .hero {
        padding: 80px 12px 50px;
    }

    .hero-title {
        font-size: clamp(28px, 12vw, 48px);
        margin-bottom: 15px;
    }

    .title-line {
        font-size: 0.45em;
    }

    .hero-subtitle {
        font-size: clamp(14px, 4vw, 18px);
        margin-bottom: 25px;
        padding: 0 5px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 12px;
        padding: 0 5px;
    }

    .btn-primary,
    .btn-secondary,
    .btn-whitepaper {
        width: 100%;
        padding: 14px 25px;
        font-size: 13px;
    }
    
    .nav-actions {
        gap: 6px;
    }
    
    .whitepaper-btn {
        padding: 8px 14px;
        font-size: 11px;
    }
    
    .whitepaper-icon {
        width: 14px;
        height: 14px;
    }
    
    .btn-whitepaper .btn-icon {
        width: 18px;
        height: 18px;
    }

    .hero-stats {
        gap: 12px;
        margin-top: 40px;
        flex-direction: column;
        padding: 0 5px;
    }

    .stat-card {
        min-width: 100%;
        max-width: 100%;
        padding: 20px;
    }

    .stat-number {
        font-size: 32px;
    }

    .stat-label {
        font-size: 11px;
    }

    .scroll-indicator {
        bottom: 20px;
        width: 25px;
    }

    .mouse {
        width: 25px;
        height: 40px;
    }

    .wheel {
        width: 3px;
        height: 8px;
    }

    /* 区块通用 */
    section {
        padding: 60px 0;
    }
    
    section::before {
        width: 50px;
    }

    .section-header {
        margin-bottom: 40px;
    }
    
    .section-header::after {
        bottom: -20px;
        width: 40px;
    }

    .section-title {
        font-size: clamp(24px, 7vw, 32px);
    }

    .section-subtitle {
        font-size: 14px;
        padding: 0 10px;
    }

    /* 特性卡片 */
    .features-grid {
        gap: 15px;
        margin-top: 30px;
    }

    .feature-card {
        padding: 25px 15px;
    }

    .feature-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 15px;
    }

    .feature-title {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .feature-desc {
        font-size: 13px;
        line-height: 1.6;
    }

    /* 预约系统 */
    .reservation-content {
        gap: 25px;
    }

    .countdown-card {
        padding: 25px 15px;
    }

    .countdown-title {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .countdown {
        gap: 4px;
        flex-wrap: nowrap;
        justify-content: center;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 5px;
    }

    .countdown-item {
        flex: 0 0 auto;
    }

    .countdown-number {
        font-size: 24px;
        width: 50px;
        min-width: 50px;
        padding: 8px;
    }

    .countdown-label {
        font-size: 10px;
        margin-top: 4px;
    }

    .countdown-separator {
        font-size: 18px;
        align-self: center;
        margin: 0 2px;
        flex-shrink: 0;
    }

    .reservation-stats {
        gap: 12px;
    }

    .reservation-stat {
        padding: 20px 15px;
    }

    .reservation-number {
        font-size: 32px;
    }

    .reservation-label {
        font-size: 11px;
    }

    .reservation-form-container {
        padding: 25px 15px;
    }

    .form-group {
        margin-bottom: 18px;
    }

    .form-group label {
        font-size: 12px;
        margin-bottom: 8px;
    }

    .form-group input,
    .form-group textarea {
        padding: 12px 14px;
        font-size: 14px;
    }

    .btn-submit {
        padding: 14px 25px;
        font-size: 13px;
    }

    /* 路线图 */
    .roadmap-items {
        gap: 40px;
    }

    .roadmap-line {
        left: 25px;
        width: 3px;
    }

    .roadmap-marker {
        width: 45px;
        height: 45px;
    }

    .roadmap-content {
        margin-left: 60px;
        padding: 20px 15px;
    }

    .roadmap-date {
        font-size: 12px;
    }

    .roadmap-title {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .roadmap-desc {
        font-size: 13px;
        margin-bottom: 12px;
    }

    .roadmap-list {
        font-size: 12px;
        padding-left: 20px;
    }

    .roadmap-list li {
        margin-bottom: 6px;
    }

    /* 合作伙伴 */
    .partner-item {
        width: 140px;
        padding: 20px 12px;
    }

    .partner-logo {
        width: 70px;
        height: 70px;
        margin-bottom: 15px;
    }

    .partner-icon {
        font-size: 20px;
    }

    .partner-name {
        font-size: 14px;
    }

    .partners-scroll-track {
        gap: 15px;
        animation-duration: 20s;
    }

    /* 页脚 */
    .footer {
        padding: 40px 0 30px;
    }

    .footer-content {
        gap: 30px;
    }

    .footer-title {
        font-size: 20px;
    }

    .footer-desc {
        font-size: 13px;
    }

    .footer-heading {
        font-size: 16px;
    }

    .footer-links {
        font-size: 13px;
    }

    .footer-bottom {
        padding-top: 20px;
        font-size: 12px;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.back-to-top:active {
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    color: #fff;
    stroke: currentColor;
}

/* 返回顶部按钮 - 移动端 */
@media (max-width: 768px) {
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }

    .back-to-top svg {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 15px;
        right: 15px;
    }

    .back-to-top svg {
        width: 18px;
        height: 18px;
    }
}