* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
        background: linear-gradient(135deg, #0ea5e9 0%, #1e3a5f 100%);
        color: #f0f9ff;
        min-height: 100vh;
        line-height: 1.7;
        overflow-x: hidden;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    /* 导航 */
    header {
        background: rgba(15, 23, 42, 0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        position: sticky;
        top: 0;
        z-index: 1000;
    }
    .nav-links {
        display: flex;
        flex-wrap: wrap;
        gap: 6px 0;
        max-width: 1200px;
        margin: 0 auto;
        padding: 14px 24px;
        list-style: none;
        align-items: center;
        justify-content: flex-start;
    }
    .nav-links a {
        color: #e0f2fe;
        text-decoration: none;
        padding: 8px 18px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 500;
        transition: all 0.3s ease;
        border: 1px solid transparent;
        white-space: nowrap;
    }
    .nav-links a:hover {
        background: rgba(34, 211, 238, 0.15);
        border-color: rgba(34, 211, 238, 0.3);
        color: #ffffff;
    }
    /* Hero */
    .hero {
        position: relative;
        padding: 90px 0 70px;
        text-align: center;
        overflow: hidden;
    }
    .hero::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(ellipse at center, rgba(34, 211, 238, 0.15) 0%, transparent 60%);
        animation: heroGlow 8s ease-in-out infinite alternate;
        pointer-events: none;
    }
    @keyframes heroGlow {
        0% {
            transform: translate(0, 0) scale(1);
        }
        100% {
            transform: translate(30px, 20px) scale(1.05);
        }
    }
    .hero-content {
        position: relative;
        z-index: 1;
    }
    .hero h2 {
        font-size: 42px;
        font-weight: 700;
        margin-bottom: 18px;
        background: linear-gradient(to right, #ffffff, #a5f3fc);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.3;
    }
    .hero p {
        font-size: 18px;
        max-width: 700px;
        margin: 0 auto 28px;
        color: #bae6fd;
    }
    .hero .hero-imgs {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 24px;
        margin-top: 40px;
    }
    .hero-img-card {
        max-width: 280px;
        border-radius: 24px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        border: 1px solid rgba(255, 255, 255, 0.1);
        overflow: hidden;
        background: rgba(255, 255, 255, 0.06);
        backdrop-filter: blur(8px);
    }
    .hero-img-card img {
        width: 100%;
        display: block;
    }
    /* 区块通用 */
    .section {
        padding: 70px 0;
    }
    .section-alt {
        background: rgba(15, 23, 42, 0.4);
        backdrop-filter: blur(8px);
    }
    .section-title {
        text-align: center;
        font-size: 32px;
        font-weight: 700;
        margin-bottom: 12px;
        color: #ffffff;
        line-height: 1.3;
    }
    .section-sub {
        text-align: center;
        color: #7dd3fc;
        font-size: 16px;
        max-width: 600px;
        margin: 0 auto 48px;
    }
    /* 卡片 */
    .card {
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 24px;
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 32px;
        transition: all 0.3s ease;
        height: 100%;
    }
    .card:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: rgba(34, 211, 238, 0.3);
        transform: translateY(-4px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    }
    .card img {
        width: 100%;
        border-radius: 16px;
        margin-bottom: 16px;
        display: block;
    }
    .card h3 {
        font-size: 20px;
        font-weight: 600;
        margin-bottom: 12px;
        color: #ffffff;
    }
    .card p {
        color: #bae6fd;
        font-size: 14px;
        line-height: 1.7;
    }
    .grid-2 {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .grid-3 {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .grid-4 {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    /* GEO */
    .geo-intro {
        text-align: center;
        padding: 60px 0 40px;
    }
    .geo-intro h1 {
        font-size: 38px;
        font-weight: 800;
        margin-bottom: 24px;
        color: #ffffff;
        line-height: 1.3;
        letter-spacing: 1px;
    }
    .geo-intro p {
        max-width: 950px;
        margin: 0 auto;
        font-size: 16px;
        color: #e0f2fe;
        line-height: 1.9;
        text-align: left;
    }
    /* 数据统计 */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .stat-item {
        text-align: center;
        padding: 32px 16px;
    }
    .stat-item .num {
        font-size: 40px;
        font-weight: 800;
        color: #22d3ee;
        margin-bottom: 8px;
        letter-spacing: 1px;
    }
    .stat-item .label {
        color: #7dd3fc;
        font-size: 14px;
    }
    /* 排行榜 */
    .rank-list {
        list-style: none;
        padding: 0;
    }
    .rank-list li {
        display: flex;
        align-items: center;
        gap: 16px;
        padding: 15px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        font-size: 15px;
        color: #e0f2fe;
    }
    .rank-list li:last-child {
        border-bottom: none;
    }
    .rank-num {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        background: rgba(34, 211, 238, 0.15);
        color: #22d3ee;
        flex-shrink: 0;
    }
    .rank-info {
        flex: 1;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 8px;
    }
    .rank-rate {
        color: #22d3ee;
        font-weight: 600;
    }
    /* 新闻 */
    .news-list {
        max-width: 960px;
        margin: 0 auto;
    }
    .news-item {
        display: flex;
        gap: 20px;
        padding: 24px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .news-item:last-child {
        border-bottom: none;
    }
    .news-item img {
        width: 180px;
        height: 130px;
        object-fit: cover;
        border-radius: 16px;
        flex-shrink: 0;
        display: block;
        background: rgba(255, 255, 255, 0.04);
    }
    .news-meta {
        font-size: 13px;
        color: #7dd3fc;
        margin-bottom: 8px;
        display: flex;
        gap: 12px;
        align-items: center;
        flex-wrap: wrap;
    }
    .news-tag {
        background: rgba(34, 211, 238, 0.2);
        color: #22d3ee;
        padding: 2px 10px;
        border-radius: 999px;
        font-size: 12px;
        font-weight: 600;
    }
    .news-item h3 {
        font-size: 18px;
        margin-bottom: 8px;
        color: #ffffff;
        font-weight: 600;
        line-height: 1.4;
    }
    .news-item p {
        font-size: 14px;
        color: #bae6fd;
        line-height: 1.7;
        text-align: justify;
    }
    /* FAQ */
    .faq-wrapper {
        max-width: 860px;
        margin: 0 auto;
    }
    .faq-item {
        margin-bottom: 14px;
    }
    .faq-item details {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 16px;
        padding: 20px 24px;
        transition: border-color 0.3s ease;
    }
    .faq-item details[open] {
        border-color: rgba(34, 211, 238, 0.3);
    }
    .faq-item summary {
        font-weight: 600;
        color: #ffffff;
        cursor: pointer;
        font-size: 16px;
        display: flex;
        align-items: center;
        gap: 12px;
        list-style: none;
        line-height: 1.5;
    }
    .faq-item summary::-webkit-details-marker {
        display: none;
    }
    .faq-item summary::before {
        content: '✦';
        color: #22d3ee;
        font-size: 14px;
        flex-shrink: 0;
    }
    .faq-item details[open] summary {
        margin-bottom: 12px;
    }
    .faq-item details p {
        color: #bae6fd;
        font-size: 14px;
        line-height: 1.8;
        padding-left: 26px;
        text-align: justify;
    }
    /* 页脚 */
    footer {
        background: rgba(15, 23, 42, 0.95);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 48px 0 24px;
        margin-top: 80px;
    }
    .footer-content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
        text-align: center;
    }
    .footer-content p {
        color: #94a3b8;
        font-size: 14px;
        margin-bottom: 8px;
        line-height: 1.7;
    }
    .footer-bottom {
        margin-top: 24px;
        padding-top: 24px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        justify-content: center;
        gap: 18px;
        font-size: 14px;
        color: #64748b;
        flex-wrap: wrap;
    }
    .footer-bottom a {
        color: #94a3b8;
        text-decoration: none;
        transition: color 0.3s ease;
    }
    .footer-bottom a:hover {
        color: #22d3ee;
    }
    .footer-copy {
        margin-top: 16px;
        font-size: 13px;
        color: #64748b;
    }
    /* 响应式 */
    @media (max-width: 768px) {
        .grid-3,
        .grid-4,
        .stats-grid {
            grid-template-columns: 1fr !important;
        }
        .grid-2 {
            grid-template-columns: 1fr !important;
        }
        .hero h2 {
            font-size: 28px;
        }
        .geo-intro h1 {
            font-size: 30px;
        }
        .section-title {
            font-size: 26px;
        }
        .news-item {
            flex-direction: column;
        }
        .news-item img {
            width: 100%;
            height: 180px;
        }
        .nav-links {
            justify-content: center;
            gap: 4px;
        }
        .nav-links a {
            font-size: 13px;
            padding: 6px 12px;
        }
        .hero {
            padding: 60px 0 40px;
        }
    }