* {
            font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --silver: #94a3b8;
            --deep-blue: #0f172a;
            --sky-blue: #38bdf8;
            --bright-silver: #cbd5e1;
            --card-border: rgba(148, 163, 184, 0.25);
            --card-bg: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
        }

        body {
            background: linear-gradient(135deg, #0b1120 0%, #1a2332 40%, #0f172a 100%);
            color: #e2e8f0;
            line-height: 1.7;
            overflow-x: hidden;
        }

        a {
            color: var(--silver);
            text-decoration: none;
            transition: color 0.3s, box-shadow 0.3s;
        }

        a:hover {
            color: var(--sky-blue);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航栏 ===== */
        .navbar {
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(148, 163, 184, 0.18);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
        }

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

        .nav-links a {
            color: var(--bright-silver);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px;
            border-radius: 30px;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
            transition: all 0.35s ease;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(56, 189, 248, 0.08);
            border-color: rgba(56, 189, 248, 0.3);
            box-shadow: 0 0 24px rgba(56, 189, 248, 0.15);
        }

        /* ===== Hero区 ===== */
        .hero {
            position: relative;
            text-align: center;
            padding: 80px 20px 60px;
            background: radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.12) 0%, transparent 60%);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero img {
            width: 120px;
            height: 120px;
            border-radius: 24px;
            margin-bottom: 28px;
            box-shadow: 0 8px 40px rgba(56, 189, 248, 0.2);
            border: 1px solid rgba(148, 163, 184, 0.3);
        }

        .hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: 1px;
            background: linear-gradient(to right, var(--bright-silver), #fff, var(--sky-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .geo-desc {
            max-width: 880px;
            margin: 0 auto;
            font-size: 1.05rem;
            color: var(--bright-silver);
            text-align: justify;
            padding: 0 12px;
            border-left: 3px solid var(--sky-blue);
            padding-left: 20px;
            background: rgba(15, 23, 42, 0.4);
            border-radius: 0 12px 12px 0;
        }

        /* ===== 通用section ===== */
        .section {
            padding: 60px 20px;
        }

        .section-alt {
            background: rgba(15, 23, 42, 0.6);
            border-top: 1px solid rgba(148, 163, 184, 0.12);
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #f1f5f9;
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(to right, var(--sky-blue), var(--silver));
            border-radius: 4px;
        }

        .section-header p {
            color: var(--silver);
            margin-top: 12px;
            font-size: 1rem;
        }

        /* 卡片 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .metal-card {
            background: var(--card-bg), repeating-linear-gradient(45deg,
                    rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 2px,
                    rgba(0, 0, 0, 0.02) 2px, rgba(0, 0, 0, 0.02) 4px);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 28px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .metal-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.06);
        }

        .metal-card h3 {
            color: var(--bright-silver);
            font-size: 1.2rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .metal-card p {
            color: #94a3b8;
            font-size: 0.94rem;
            line-height: 1.7;
        }

        .metal-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 14px;
            border: 1px solid rgba(148, 163, 184, 0.2);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid rgba(148, 163, 184, 0.2);
            border-radius: 16px;
            padding: 32px 16px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }

        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--sky-blue);
            display: block;
            margin-bottom: 6px;
            text-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
        }

        .stat-item .label {
            color: var(--silver);
            font-size: 0.95rem;
        }

        /* ===== 新闻 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .news-card {
            background: rgba(15, 23, 42, 0.75);
            border: 1px solid rgba(148, 163, 184, 0.18);
            border-radius: 16px;
            padding: 24px;
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(0, 0, 0, 0.45);
        }

        .news-tag {
            display: inline-block;
            background: linear-gradient(90deg, rgba(56, 189, 248, 0.2), rgba(148, 163, 184, 0.15));
            color: var(--sky-blue);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            align-self: flex-start;
            margin-bottom: 12px;
            border: 1px solid rgba(56, 189, 248, 0.3);
        }

        .news-card h3 {
            font-size: 1.1rem;
            color: #f1f5f9;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .news-card h3 a {
            color: #f1f5f9;
            transition: color 0.3s;
        }

        .news-card h3 a:hover {
            color: var(--sky-blue);
        }

        .news-summary {
            color: #94a3b8;
            font-size: 0.92rem;
            line-height: 1.7;
            flex: 1;
        }

        .news-date {
            color: var(--sky-blue);
            font-weight: 600;
            font-size: 0.9rem;
            margin-right: 4px;
        }

        .news-link {
            margin-top: 14px;
            font-size: 0.9rem;
            color: var(--sky-blue);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-link:hover {
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .faq-item {
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid rgba(148, 163, 184, 0.18);
            border-radius: 14px;
            padding: 24px 28px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(56, 189, 248, 0.3);
            box-shadow: 0 0 20px rgba(56, 189, 248, 0.05);
        }

        .faq-item h3 {
            color: var(--bright-silver);
            font-size: 1.1rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .faq-item h3::before {
            content: '❓';
            font-size: 1.1rem;
        }

        .faq-item p {
            color: #94a3b8;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: rgba(8, 12, 22, 0.95);
            border-top: 1px solid rgba(148, 163, 184, 0.15);
            padding: 48px 20px 24px;
            margin-top: 40px;
        }

        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            text-align: center;
            color: var(--silver);
            font-size: 0.9rem;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--bright-silver);
            margin-bottom: 16px;
        }

        .footer-info {
            margin-bottom: 8px;
            line-height: 1.8;
        }

        .footer-links {
            margin-top: 18px;
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--silver);
            transition: color 0.3s;
        }

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

        .footer-copy {
            margin-top: 20px;
            padding-top: 18px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            font-size: 0.85rem;
            color: #64748b;
        }

        /* ===== 其他 ===== */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .split-layout img {
            width: 100%;
            border-radius: 16px;
            border: 1px solid rgba(148, 163, 184, 0.2);
        }

        .highlight-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: rgba(15, 23, 42, 0.6);
            border-radius: 12px;
            border: 1px solid rgba(148, 163, 184, 0.14);
            margin-bottom: 12px;
        }

        .highlight-item img {
            width: 46px;
            height: 46px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            font-size: 0.8rem;
            font-weight: 700;
            background: linear-gradient(145deg, var(--sky-blue), #1d4ed8);
            color: #fff;
            flex-shrink: 0;
        }

        .btn {
            display: inline-block;
            background: linear-gradient(90deg, var(--sky-blue), #1d4ed8);
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: box-shadow 0.3s, transform 0.3s;
        }

        .btn:hover {
            box-shadow: 0 6px 30px rgba(56, 189, 248, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 1.7rem;
            }
            .split-layout {
                grid-template-columns: 1fr;
            }
            .nav-links a {
                padding: 6px 12px;
                font-size: 0.85rem;
            }
        }