/* USDT冷钱包 - 全局样式 */
:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #0f3460;
    --highlight: #e94560;
    --aurora-start: #0c0c1d;
    --aurora-mid: #1a1a3e;
    --aurora-end: #2d1b69;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --gradient-blue: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-aurora: linear-gradient(135deg, #0c0c1d 0%, #1a1a3e 50%, #2d1b69 100%);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--aurora-start);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 背景网格效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(102, 126, 234, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

/* 粒子背景 */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(102, 126, 234, 0.5);
    border-radius: 50%;
    animation: float-particle 15s infinite linear;
}

@keyframes float-particle {
    0% { transform: translateY(100vh) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) translateX(100px); opacity: 0; }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(12, 12, 29, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(12, 12, 29, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-blue);
    transition: width 0.3s ease;
}

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

.nav-search {
    display: flex;
    align-items: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: 8px 16px;
    gap: 8px;
    max-width: 220px;
}

.nav-search input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 140px;
}

.nav-search input::placeholder {
    color: var(--text-muted);
}

.nav-search button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: aurora-glow 8s ease-in-out infinite alternate;
}

@keyframes aurora-glow {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 30px) rotate(5deg); }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #667eea 50%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--gradient-blue);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: var(--gradient-blue);
    border-radius: 50%;
    opacity: 0.3;
    filter: blur(40px);
}

/* 统计数据条 */
.stats-bar {
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 5px;
}

/* 通用Section */
.section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 玻璃卡片 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

/* 安全仪表盘 */
.dashboard {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 60px;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.dashboard-title {
    font-size: 1.3rem;
    font-weight: 600;
}

.dashboard-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 200, 83, 0.1);
    border: 1px solid rgba(0, 200, 83, 0.3);
    border-radius: 25px;
    font-size: 0.85rem;
    color: #00c853;
}

.dashboard-status .pulse {
    width: 8px;
    height: 8px;
    background: #00c853;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(0, 200, 83, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 200, 83, 0); }
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.dash-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
}

.dash-card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dash-card-value {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dash-card-change {
    font-size: 0.85rem;
    margin-top: 5px;
}

.dash-card-change.positive {
    color: #00c853;
}

.dash-card-change.negative {
    color: #ff5252;
}

/* 安全动态列表 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.news-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

.news-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-card-body {
    padding: 20px;
}

.news-card-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.news-card-tag.high {
    background: rgba(255, 82, 82, 0.2);
    color: #ff5252;
}

.news-card-tag.medium {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
}

.news-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 专家展示 */
.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.expert-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
}

.expert-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

.expert-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.expert-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.expert-info h4 {
    font-size: 1rem;
    font-weight: 600;
}

.expert-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.expert-opinion {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
}

/* 用户评价 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.review-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 25px;
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: translateY(-3px);
    border-color: rgba(102, 126, 234, 0.3);
}

.review-stars {
    color: #ffc107;
    font-size: 1rem;
    margin-bottom: 12px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.review-author {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
}

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

.review-date {
    color: var(--text-muted);
}

/* 社区动态 */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.community-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 25px;
    transition: all 0.3s ease;
}

.community-card:hover {
    transform: translateY(-3px);
    border-color: rgba(102, 126, 234, 0.3);
}

.community-author {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.community-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
}

.community-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.community-content {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.community-stats {
    display: flex;
    gap: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.community-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Video卡片 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.video-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/9;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.video-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-card:hover img {
    transform: scale(1.05);
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(102, 126, 234, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .video-play-btn {
    opacity: 1;
}

.video-play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent white;
    margin-left: 4px;
}

.video-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
}

.video-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
}

.video-duration {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    margin-top: 5px;
}

/* 搜索弹窗 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 150px;
}

.search-overlay.active {
    display: flex;
}

.search-box {
    width: 90%;
    max-width: 600px;
    background: var(--secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.search-input-wrapper input {
    flex: 1;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 14px 18px;
    color: white;
    font-size: 1rem;
    outline: none;
}

.search-result {
    padding: 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
}

.search-scanning {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #667eea;
}

.search-scanning .dot {
    width: 8px;
    height: 8px;
    background: #667eea;
    border-radius: 50%;
    animation: scanning-dot 1.4s infinite ease-in-out;
}

.search-scanning .dot:nth-child(2) { animation-delay: 0.2s; }
.search-scanning .dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes scanning-dot {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* 页脚 */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--glass-border);
    padding: 60px 20px 30px;
    margin-top: 80px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: #667eea;
}

.footer-col p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 面包屑 */
.breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.breadcrumb a:hover {
    color: #667eea;
}

.breadcrumb span {
    margin: 0 8px;
}

/* 内页Hero */
.page-hero {
    padding: 120px 20px 60px;
    text-align: center;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
}

.page-hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.page-hero p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

/* 内页内容 */
.page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}

.content-block {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 30px;
}

.content-block h2,
.content-block h3,
.content-block h4,
.content-block h5,
.content-block h6 {
    margin-bottom: 15px;
    line-height: 1.4;
}

.content-block h2 {
    font-size: 1.8rem;
    background: linear-gradient(135deg, #fff 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-block h3 { font-size: 1.4rem; }
.content-block h4 { font-size: 1.2rem; color: #667eea; }
.content-block h5 { font-size: 1.05rem; }
.content-block h6 { font-size: 0.95rem; color: var(--text-secondary); }

.content-block p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 15px;
}

.content-block ul,
.content-block ol {
    margin: 15px 0;
    padding-left: 25px;
    color: var(--text-secondary);
}

.content-block li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.content-block img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 20px 0;
}

/* 步骤条 */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.step-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 25px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.step-header:hover {
    background: rgba(255, 255, 255, 0.03);
}

.step-number {
    width: 36px;
    height: 36px;
    background: var(--gradient-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-title {
    font-weight: 600;
    font-size: 1rem;
    flex: 1;
}

.step-toggle {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.step-item.active .step-toggle {
    transform: rotate(180deg);
}

.step-content {
    padding: 0 25px 0 76px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.step-item.active .step-content {
    max-height: 500px;
    padding-bottom: 25px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* 特性网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-blue);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 15px;
}

.feature-card h4 {
    font-size: 1.05rem;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 行情表格 */
.market-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.market-table th {
    text-align: left;
    padding: 15px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--glass-border);
}

.market-table td {
    padding: 15px;
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.market-table tr:hover {
    background: rgba(255,255,255,0.02);
}

.price-up { color: #00c853; }
.price-down { color: #ff5252; }

/* 论坛帖子 */
.forum-posts {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.forum-post {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 25px;
    transition: all 0.3s ease;
}

.forum-post:hover {
    border-color: rgba(102, 126, 234, 0.3);
}

.forum-post-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 10px;
}

.forum-post-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.forum-post-tag {
    padding: 4px 12px;
    background: rgba(102, 126, 234, 0.15);
    color: #667eea;
    border-radius: 20px;
    font-size: 0.75rem;
}

.forum-post-body {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.forum-post-footer {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 互动分享 */
.share-section {
    text-align: center;
    padding: 60px 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    margin-top: 60px;
}

.share-section h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.share-section p {
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.share-btn:hover {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
    border-color: rgba(102, 126, 234, 0.3);
}

/* 响应式 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(12, 12, 29, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-search {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        min-height: auto;
        padding: 100px 20px 40px;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .hero-text p {
        font-size: 0.95rem;
    }

    .hero-image-wrapper {
        max-width: 300px;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .section {
        padding: 50px 15px;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .dashboard {
        padding: 20px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .dash-card-value {
        font-size: 1.4rem;
    }

    .news-grid,
    .experts-grid,
    .reviews-grid,
    .community-grid,
    .video-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .page-hero h1 {
        font-size: 1.8rem;
    }

    .content-block {
        padding: 25px;
    }

    .step-content {
        padding-left: 25px;
    }

    .btn-primary, .btn-secondary {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .market-table {
        font-size: 0.85rem;
    }

    .market-table th,
    .market-table td {
        padding: 10px 8px;
    }

    .share-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .section-header h2 {
        font-size: 1.3rem;
    }

    .glass-card,
    .expert-card,
    .review-card,
    .community-card {
        padding: 20px;
    }

    .page-hero h1 {
        font-size: 1.4rem;
    }
}

/* 懒加载 */
.lazy-load {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.lazy-load.loaded {
    opacity: 1;
    transform: translateY(0);
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary);
}

::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.5);
}