/* ============================================
   im冷钱包 - 全站样式表
   品牌色系：深空蓝 #0a0e27 → 极光紫 #6c3ce0
   ============================================ */

/* === 基础重置与字体 === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
    --deep-space: #0a0e27;
    --aurora-purple: #6c3ce0;
    --aurora-blue: #3b82f6;
    --neon-cyan: #22d3ee;
    --neon-green: #10b981;
    --accent-gold: #f59e0b;
    --danger-red: #ef4444;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --card-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--deep-space) 0%, #1a1145 40%, #0f172a 70%, var(--deep-space) 100%);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* === 粒子背景 === */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* === 网格线背景 === */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(108, 60, 224, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 60, 224, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    pointer-events: none;
}

/* === 通用容器 === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.section-wrapper {
    position: relative;
    z-index: 1;
}

/* === 磨砂玻璃卡片 === */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

.glass-card:hover {
    border-color: rgba(108, 60, 224, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(108, 60, 224, 0.15);
}

/* === 导航栏 === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 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: 1.3rem;
}

.nav-logo img {
    height: 32px;
    width: auto;
}

.nav-logo .brand-text {
    background: linear-gradient(135deg, var(--neon-cyan), var(--aurora-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: rgba(108, 60, 224, 0.15);
}

.nav-download-btn {
    background: linear-gradient(135deg, var(--aurora-purple), var(--aurora-blue)) !important;
    color: white !important;
    padding: 8px 20px !important;
    border-radius: 20px !important;
    font-weight: 600 !important;
}

.nav-download-btn:hover {
    box-shadow: 0 4px 20px rgba(108, 60, 224, 0.4) !important;
    transform: translateY(-1px);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* === 搜索栏 === */
.search-bar {
    background: rgba(10, 14, 39, 0.6);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 0;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    z-index: 999;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 44px 10px 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

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

.search-input:focus {
    border-color: var(--aurora-purple);
    box-shadow: 0 0 20px rgba(108, 60, 224, 0.2);
}

.search-icon {
    position: absolute;
    right: 34px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
}

.search-overlay {
    display: none;
    position: fixed;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 600px;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    z-index: 998;
    text-align: center;
    color: var(--neon-cyan);
    font-size: 0.9rem;
}

.search-overlay.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* === 面包屑导航 === */
.breadcrumb {
    padding: 15px 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.breadcrumb a:hover {
    color: var(--neon-cyan);
}

.breadcrumb span {
    margin: 0 8px;
    color: var(--text-muted);
}

/* === Hero 区域 === */
.hero-section {
    padding: 160px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff, var(--neon-cyan), var(--aurora-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text h1 .highlight {
    display: block;
    background: linear-gradient(135deg, var(--neon-cyan), var(--aurora-purple));
    -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: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--aurora-purple), var(--aurora-blue));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(108, 60, 224, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--aurora-purple);
    background: rgba(108, 60, 224, 0.1);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    max-height: 480px;
    filter: drop-shadow(0 20px 60px rgba(108, 60, 224, 0.3));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* 品牌数据统计 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 50px;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--neon-cyan), var(--aurora-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* === 区块标题 === */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-primary), var(--neon-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header h4 {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(108, 60, 224, 0.15);
    border: 1px solid rgba(108, 60, 224, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--aurora-purple);
    margin-bottom: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* === 安全动态模块 === */
.security-section {
    padding: 80px 0;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.security-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.4rem;
}

.icon-blue { background: rgba(59, 130, 246, 0.15); color: var(--aurora-blue); }
.icon-purple { background: rgba(108, 60, 224, 0.15); color: var(--aurora-purple); }
.icon-cyan { background: rgba(34, 211, 238, 0.15); color: var(--neon-cyan); }
.icon-green { background: rgba(16, 185, 129, 0.15); color: var(--neon-green); }
.icon-gold { background: rgba(245, 158, 11, 0.15); color: var(--accent-gold); }
.icon-red { background: rgba(239, 68, 68, 0.15); color: var(--danger-red); }

.security-card h5 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.security-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.security-card .card-tag {
    display: inline-block;
    margin-top: 12px;
    padding: 3px 10px;
    background: rgba(34, 211, 238, 0.1);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--neon-cyan);
}

/* === 全球资产安全监控仪表盘 === */
.dashboard-section {
    padding: 80px 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.dashboard-main {
    padding: 32px;
}

.price-display {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 8px;
}

.price-value {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--text-primary);
}

.price-change {
    font-size: 1rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
}

.price-up { color: var(--neon-green); background: rgba(16, 185, 129, 0.1); }
.price-down { color: var(--danger-red); background: rgba(239, 68, 68, 0.1); }

.price-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* 价格图表 CSS 动画 */
.chart-container {
    height: 200px;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: rgba(108, 60, 224, 0.05);
}

.chart-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100%;
}

.chart-line svg {
    width: 100%;
    height: 100%;
}

.chart-animate {
    animation: chartMove 20s linear infinite;
}

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

/* 侧边监控面板 */
.monitor-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.monitor-item {
    padding: 20px;
}

.monitor-item .monitor-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.monitor-item .monitor-value {
    font-size: 1.6rem;
    font-weight: 800;
}

.monitor-value.green { color: var(--neon-green); }
.monitor-value.cyan { color: var(--neon-cyan); }
.monitor-value.gold { color: var(--accent-gold); }
.monitor-value.red { color: var(--danger-red); }

.counter-animate {
    display: inline-block;
}

/* === 技术资讯 === */
.news-section {
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.news-card {
    display: flex;
    gap: 16px;
    padding: 20px;
}

.news-card .news-img {
    width: 120px;
    height: 90px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
}

.news-card .news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-card .news-body h6 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.5;
}

.news-card .news-body p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card .news-meta {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* === AI 赋能模块 === */
.ai-section {
    padding: 80px 0;
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ai-card {
    text-align: center;
    padding: 36px 24px;
}

.ai-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    background: linear-gradient(135deg, rgba(108, 60, 224, 0.2), rgba(34, 211, 238, 0.2));
    border: 1px solid rgba(108, 60, 224, 0.3);
    position: relative;
}

.ai-icon::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 1px dashed rgba(108, 60, 224, 0.3);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.ai-card h5 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.ai-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === 视频卡片 === */
.video-section {
    padding: 80px 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.video-card {
    border-radius: var(--card-radius);
    overflow: hidden;
    cursor: pointer;
    position: relative;
}

.video-thumb {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: var(--transition);
}

.video-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 14, 39, 0.8), transparent);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 56px;
    height: 56px;
    background: rgba(108, 60, 224, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: var(--transition);
}

.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: 3px;
}

.video-card:hover .play-btn {
    transform: translate(-50%, -50%) scale(1);
}

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

.video-info {
    padding: 16px;
    background: var(--glass-bg);
}

.video-info h6 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.video-info span {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* === 专家展示 === */
.experts-section {
    padding: 80px 0;
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.expert-card {
    text-align: center;
    padding: 28px 16px;
}

.expert-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, var(--aurora-purple), var(--neon-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    color: white;
}

.expert-card h6 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.expert-card .expert-title {
    font-size: 0.78rem;
    color: var(--neon-cyan);
    margin-bottom: 8px;
}

.expert-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === 用户口碑 === */
.reviews-section {
    padding: 80px 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    padding: 28px;
}

.review-stars {
    color: var(--accent-gold);
    margin-bottom: 12px;
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.review-card blockquote {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.review-author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--aurora-blue), var(--aurora-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: white;
}

.review-author-info .name {
    font-size: 0.85rem;
    font-weight: 600;
}

.review-author-info .role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* === 社区论坛动态 === */
.community-section {
    padding: 80px 0;
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.community-card {
    padding: 24px;
}

.community-card .topic-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.tag-hot { background: rgba(239, 68, 68, 0.15); color: var(--danger-red); }
.tag-new { background: rgba(16, 185, 129, 0.15); color: var(--neon-green); }
.tag-tech { background: rgba(59, 130, 246, 0.15); color: var(--aurora-blue); }
.tag-discuss { background: rgba(108, 60, 224, 0.15); color: var(--aurora-purple); }

.community-card h6 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.community-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.community-meta {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* === 分享按钮 === */
.share-section {
    padding: 60px 0;
    text-align: center;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 24px;
    font-size: 0.88rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    background: var(--glass-bg);
    cursor: pointer;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.share-wechat:hover { border-color: #07c160; color: #07c160; }
.share-weibo:hover { border-color: #e6162d; color: #e6162d; }
.share-douyin:hover { border-color: #fe2c55; color: #fe2c55; }
.share-bilibili:hover { border-color: #00a1d6; color: #00a1d6; }

/* === 页脚 === */
.footer {
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
    padding: 60px 0 30px;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.footer-contact {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 2;
}

.footer-col h6 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--neon-cyan);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.footer-tags span {
    padding: 3px 10px;
    background: rgba(108, 60, 224, 0.1);
    border-radius: 12px;
    font-size: 0.72rem;
    color: var(--text-secondary);
}

/* === 内页通用 === */
.page-hero {
    padding: 140px 0 60px;
    text-align: center;
    position: relative;
}

.page-hero h1 {
    font-size: 2.4rem;
    font-weight: 900;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ffffff, var(--neon-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.content-section {
    padding: 60px 0;
}

.content-article {
    max-width: 900px;
    margin: 0 auto;
}

.content-article h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 40px 0 16px;
    color: var(--text-primary);
}

.content-article h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 30px 0 12px;
    color: var(--text-primary);
}

.content-article h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 24px 0 10px;
    color: var(--neon-cyan);
}

.content-article p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.content-article ul, .content-article ol {
    margin: 16px 0;
    padding-left: 24px;
}

.content-article li {
    font-size: 0.93rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

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

/* 三层加密逻辑 SVG 动效 */
.encryption-layers {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 40px 0;
    flex-wrap: wrap;
}

.layer-item {
    text-align: center;
    position: relative;
}

.layer-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    position: relative;
    font-size: 2rem;
}

.layer-1 .layer-circle {
    background: rgba(239, 68, 68, 0.1);
    border: 2px solid rgba(239, 68, 68, 0.3);
}

.layer-2 .layer-circle {
    background: rgba(245, 158, 11, 0.1);
    border: 2px solid rgba(245, 158, 11, 0.3);
}

.layer-3 .layer-circle {
    background: rgba(16, 185, 129, 0.1);
    border: 2px solid rgba(16, 185, 129, 0.3);
}

.layer-circle .pulse-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid;
    animation: pulse 2s ease-in-out infinite;
    opacity: 0;
}

.layer-1 .pulse-ring { border-color: rgba(239, 68, 68, 0.3); }
.layer-2 .pulse-ring { border-color: rgba(245, 158, 11, 0.3); animation-delay: 0.5s; }
.layer-3 .pulse-ring { border-color: rgba(16, 185, 129, 0.3); animation-delay: 1s; }

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.3); opacity: 0; }
}

.layer-item h6 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.layer-item p {
    font-size: 0.8rem;
    color: var(--text-muted);
    max-width: 140px;
    margin: 0 auto;
}

/* 连接箭头 */
.layer-arrow {
    display: flex;
    align-items: center;
    color: var(--text-muted);
    font-size: 1.5rem;
    padding-top: 40px;
}

/* 交互式步骤条 */
.step-bar {
    display: flex;
    justify-content: center;
    gap: 0;
    margin: 40px 0;
    position: relative;
}

.step-item {
    flex: 1;
    max-width: 200px;
    text-align: center;
    cursor: pointer;
    padding: 16px 12px;
    position: relative;
    transition: var(--transition);
}

.step-item::after {
    content: '';
    position: absolute;
    top: 28px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: var(--glass-border);
    z-index: 0;
}

.step-item:last-child::after {
    display: none;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
    font-weight: 700;
    font-size: 0.9rem;
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.step-item.active .step-number {
    background: linear-gradient(135deg, var(--aurora-purple), var(--aurora-blue));
    border-color: transparent;
    color: white;
}

.step-item .step-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.step-item.active .step-label {
    color: var(--text-primary);
    font-weight: 600;
}

.step-content {
    display: none;
    padding: 24px;
    animation: fadeIn 0.4s ease;
}

.step-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

    .hero-text h1 {
        font-size: 2.4rem;
    }

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

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

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

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

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

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

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

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

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--glass-border);
    }

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

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

    .hero-section {
        padding: 140px 0 60px;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

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

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

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

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

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

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

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

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

    .encryption-layers {
        flex-direction: column;
        align-items: center;
    }

    .layer-arrow {
        transform: rotate(90deg);
        padding: 0;
    }

    .step-bar {
        flex-wrap: wrap;
    }

    .step-item::after {
        display: none;
    }

    .price-value {
        font-size: 2rem;
    }

    .news-card {
        flex-direction: column;
    }

    .news-card .news-img {
        width: 100%;
        height: 160px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.6rem;
    }

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

    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }

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

    .glass-card {
        padding: 20px;
    }

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

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

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

/* === 科技图标 (纯CSS) === */
.css-icon-shield {
    width: 24px;
    height: 28px;
    position: relative;
    display: inline-block;
}

.css-icon-shield::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 24px;
    border: 2px solid currentColor;
    border-radius: 2px 2px 10px 10px;
}

.css-icon-shield::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 4px;
    border-bottom: 2px solid currentColor;
    border-left: 2px solid currentColor;
    transform: translateX(-50%) rotate(-45deg);
}

.css-icon-lock {
    width: 20px;
    height: 24px;
    position: relative;
    display: inline-block;
}

.css-icon-lock::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 10px;
    border: 2px solid currentColor;
    border-bottom: none;
    border-radius: 6px 6px 0 0;
}

.css-icon-lock::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 14px;
    background: currentColor;
    border-radius: 2px;
    opacity: 0.3;
}

/* === 滚动条美化 === */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--aurora-purple);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neon-cyan);
}

/* === 选中文字样式 === */
::selection {
    background: rgba(108, 60, 224, 0.3);
    color: white;
}

/* === 加载动画 === */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--glass-border);
    border-top-color: var(--neon-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 市场数据表格 */
.market-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.market-table th {
    padding: 12px 16px;
    text-align: left;
    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: 14px 16px;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.market-table tr:hover {
    background: rgba(108, 60, 224, 0.05);
}

/* 论坛帖子列表 */
.forum-post {
    padding: 20px;
    margin-bottom: 16px;
    transition: var(--transition);
}

.forum-post:hover {
    border-color: rgba(108, 60, 224, 0.3);
}

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

.forum-post-title {
    font-size: 1rem;
    font-weight: 600;
}

.forum-post-body {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.forum-post-footer {
    display: flex;
    gap: 20px;
    margin-top: 12px;
    font-size: 0.78rem;
    color: var(--text-muted);
}