* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
}
body {
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 50%, #f0f9ff 100%);
    color: #1e293b;
    line-height: 1.6;
    overflow-x: hidden;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
.nav {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.08);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    max-width: 1280px;
    margin: 0 auto;
    flex-wrap: wrap;
}
.nav-links a {
    color: #334155;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s, transform 0.2s;
    letter-spacing: 0.3px;
}
.nav-links a:hover {
    color: #0284c7;
    transform: translateY(-1px);
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
    color: #0f172a;
}
.nav-brand img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}
.hero {
    padding: 60px 24px 40px;
    text-align: center;
    position: relative;
}
.hero h1 {
    font-size: 42px;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(120deg, #0f172a 0%, #0284c7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero .subtitle {
    color: #475569;
    font-size: 17px;
    max-width: 760px;
    margin: 0 auto;
    font-weight: 400;
}
.geo-intro {
    padding: 40px 24px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}
.geo-intro .container {
    max-width: 960px;
    font-size: 16px;
    color: #334155;
    line-height: 1.8;
}
.geo-intro strong {
    color: #0284c7;
}
.section {
    padding: 48px 24px;
}
.section-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    color: #0f172a;
    margin-bottom: 32px;
    letter-spacing: -0.3px;
}
.section-title span {
    color: #0284c7;
}
.section-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 15px;
    margin-bottom: 32px;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(240, 249, 255, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(148, 163, 184, 0.12);
    backdrop-filter: blur(8px);
    padding: 28px;
    transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(2, 132, 199, 0.15);
}
.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    font-size: 24px;
    margin-bottom: 16px;
}
.card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 8px;
}
.card p {
    font-size: 14px;
    color: #64748b;
    line-height: 1.6;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}
.stat-item {
    text-align: center;
    padding: 32px 16px;
}
.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: #0284c7;
    line-height: 1.1;
}
.stat-label {
    font-size: 14px;
    color: #64748b;
    margin-top: 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.story-grid img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}
.story-text {
    font-size: 15px;
    color: #475569;
    line-height: 1.8;
}
.story-text h3 {
    font-size: 22px;
    color: #0f172a;
    margin-bottom: 16px;
}
.event-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}
.event-item {
    background: linear-gradient(145deg, #ffffff, #f0f9ff);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 20px rgba(2, 132, 199, 0.08);
    transition: transform 0.3s;
}
.event-item:hover {
    transform: scale(1.02);
}
.event-item img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    margin-bottom: 12px;
    object-fit: contain;
}
.event-item h4 {
    font-size: 15px;
    color: #0f172a;
    margin-bottom: 4px;
}
.event-item span {
    font-size: 13px;
    color: #94a3b8;
}
.rank-list {
    list-style: none;
    padding: 0;
}
.rank-list li {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    transition: background 0.2s;
    gap: 14px;
}
.rank-list li:hover {
    background: rgba(240, 249, 255, 0.5);
}
.rank-num {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #0284c7, #38bdf8);
}
.rank-num.top-1 {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
}
.rank-num.top-2 {
    background: linear-gradient(135deg, #94a3b8, #cbd5e1);
}
.rank-num.top-3 {
    background: linear-gradient(135deg, #d56c2c, #f97316);
}
.rank-info {
    flex: 1;
}
.rank-info h4 {
    font-size: 15px;
    color: #1e293b;
    font-weight: 500;
}
.rank-info span {
    font-size: 13px;
    color: #94a3b8;
}
.rank-value {
    font-weight: 600;
    color: #0284c7;
    font-size: 16px;
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}
.testimonial {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(240, 249, 255, 0.85));
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}
.testimonial .quote {
    font-size: 18px;
    color: #0284c7;
    margin-bottom: 12px;
}
.testimonial p {
    font-size: 14px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 16px;
}
.testimonial .author {
    font-size: 13px;
    color: #94a3b8;
    font-weight: 500;
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}
.news-item {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}
.news-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(2, 132, 199, 0.1);
}
.news-item .news-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}
.news-item .news-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-tag {
    display: inline-block;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    color: #0369a1;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    width: fit-content;
    margin-bottom: 12px;
}
.news-date {
    font-size: 13px;
    color: #94a3b8;
    margin-bottom: 8px;
}
.news-item h3 {
    font-size: 17px;
    color: #0f172a;
    margin-bottom: 8px;
    line-height: 1.4;
}
.news-item p {
    font-size: 14px;
    color: #64748b;
    line-height: 1.6;
    flex: 1;
}
.news-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #0284c7;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    margin-top: 12px;
}
.news-link:hover {
    text-decoration: underline;
}
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}
.faq-item {
    background: #ffffff;
    border-radius: 12px;
    margin-bottom: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.8);
    overflow: hidden;
}
.faq-item details {
    padding: 0;
}
.faq-item summary {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 500;
    color: #1e293b;
    font-size: 15px;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}
.faq-item summary:hover {
    background: #f0f9ff;
}
.faq-item summary::after {
    content: '+';
    font-size: 22px;
    color: #0284c7;
    transition: transform 0.3s;
}
.faq-item details[open] summary::after {
    transform: rotate(45deg);
}
.faq-item .faq-answer {
    padding: 0 24px 20px;
    color: #475569;
    font-size: 14px;
    line-height: 1.7;
}
.cta-section {
    background: linear-gradient(135deg, #0284c7 0%, #0ea5e9 100%);
    padding: 60px 24px;
    text-align: center;
    border-radius: 24px;
    margin: 24px;
}
.cta-section h2 {
    color: #ffffff;
    font-size: 32px;
    margin-bottom: 12px;
}
.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    margin-bottom: 24px;
}
.cta-btn {
    display: inline-block;
    background: #ffffff;
    color: #0284c7;
    padding: 14px 36px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}
.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}
.footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 40px 24px 24px;
    font-size: 14px;
}
.footer .container {
    max-width: 1280px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}
.footer h4 {
    color: #e2e8f0;
    font-size: 16px;
    margin-bottom: 12px;
}
.footer p {
    line-height: 1.6;
    margin-bottom: 8px;
}
.footer a {
    color: #7dd3fc;
    text-decoration: none;
    transition: color 0.2s;
}
.footer a:hover {
    color: #ffffff;
}
.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.2);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: #64748b;
}
.footer-bottom a {
    color: #94a3b8;
    margin: 0 4px;
}
@media (max-width: 768px) {
    .hero h1 {
        font-size: 28px;
    }
    .nav-links {
        gap: 14px;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 4px;
    }
    .nav-links a {
        font-size: 14px;
        white-space: nowrap;
    }
    .story-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .section {
        padding: 32px 16px;
    }
    .cta-section {
        margin: 16px;
        padding: 40px 16px;
    }
    .cta-section h2 {
        font-size: 24px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}