* {
    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;
}
body {
    background: linear-gradient(160deg, #0b1a2e 0%, #0e2239 40%, #0e2b4a 100%);
    color: #dbeafe;
    font-kerning: normal;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}
a {
    color: #7dd3fc;
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover {
    color: #e0f2fe;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: 80px 0;
    position: relative;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(90deg, #e0f2fe, #7dd3fc, #67e8f9);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
}
.section-subtitle {
    text-align: center;
    color: #9fc3dd;
    font-size: 1rem;
    max-width: 700px;
    margin: 0 auto 48px;
    line-height: 1.7;
}
/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 22, 38, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0;
}
.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    min-height: 70px;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 600;
    color: #e0f2fe;
}
.nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.nav-links a {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.95rem;
    color: #b6d7f0;
    transition: all 0.25s ease;
}
.nav-links a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}
/* Hero */
.hero {
    position: relative;
    padding: 140px 0 100px;
    background: radial-gradient(ellipse at 70% 20%, rgba(14, 165, 233, 0.3) 0%, rgba(0, 0, 0, 0) 60%), linear-gradient(135deg, #0b1a2e 0%, #0a2740 100%);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at 20% 50%, rgba(103, 232, 249, 0.08) 0%, rgba(0, 0, 0, 0) 50%);
    pointer-events: none;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}
.hero-text h2 {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    color: #f0f9ff;
    margin-bottom: 20px;
}
.hero-text h2 span {
    color: #67e8f9;
}
.hero-text p {
    font-size: 1.05rem;
    color: #b6d7f0;
    line-height: 1.8;
    margin-bottom: 28px;
}
.btn-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}
.btn-primary {
    background: linear-gradient(135deg, #0ea5e9, #38bdf8);
    color: #0b1a2e;
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(14, 165, 233, 0.4);
}
.btn-ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #e0f2fe;
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}
.hero-visual img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
}
/* Geo Intro */
.geo-section {
    background: linear-gradient(180deg, #0d2139, #0e2b4a);
    padding-top: 40px;
    padding-bottom: 80px;
}
.geo-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}
.geo-container h1 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 28px;
    color: #f0f9ff;
    line-height: 1.3;
}
.geo-container p {
    font-size: 1.05rem;
    color: #c1dced;
    line-height: 1.9;
    margin-bottom: 16px;
}
/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    padding: 32px 20px;
    text-align: center;
    transition: transform 0.3s ease;
}
.stat-card:hover {
    transform: translateY(-4px);
}
.stat-number {
    font-size: 2.6rem;
    font-weight: 700;
    color: #67e8f9;
    margin-bottom: 8px;
}
.stat-label {
    font-size: 0.95rem;
    color: #9fc3dd;
}
/* Advantages */
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.adv-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 18px;
    padding: 32px 28px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}
.adv-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(103, 232, 249, 0.3);
}
.adv-icon {
    font-size: 2.4rem;
    margin-bottom: 16px;
}
.adv-card h3 {
    font-size: 1.3rem;
    color: #e0f2fe;
    margin-bottom: 12px;
}
.adv-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #a8c7df;
}
/* Brand Story */
.brand-section {
    background: linear-gradient(135deg, #0e2b4a, #0b1a2e);
}
.brand-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.brand-img img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}
.brand-content h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: #e0f2fe;
}
.brand-content p {
    font-size: 1rem;
    line-height: 1.9;
    color: #a8c7df;
    margin-bottom: 16px;
}
/* Events */
.events-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.event-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    overflow: hidden;
    transition: all 0.3s ease;
}
.event-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(103, 232, 249, 0.25);
}
.event-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}
.event-body {
    padding: 22px;
}
.event-body h3 {
    font-size: 1.2rem;
    color: #e0f2fe;
    margin-bottom: 8px;
}
.event-body p {
    font-size: 0.9rem;
    color: #9fc3dd;
    line-height: 1.6;
}
.event-meta {
    display: flex;
    gap: 16px;
    margin-top: 14px;
    font-size: 0.85rem;
    color: #67e8f9;
}
/* Rankings */
.rankings-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    overflow: hidden;
}
.rankings-table th {
    background: rgba(255, 255, 255, 0.06);
    padding: 14px 20px;
    text-align: left;
    font-size: 0.9rem;
    color: #9fc3dd;
    font-weight: 600;
}
.rankings-table td {
    padding: 14px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.95rem;
    color: #dbeafe;
}
.rank-num {
    font-weight: 700;
    color: #67e8f9;
}
/* Highlights */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.hl-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16/9;
    cursor: pointer;
}
.hl-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.hl-card:hover img {
    transform: scale(1.05);
}
.hl-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: #f0f9ff;
    font-size: 0.95rem;
}
.hl-overlay span {
    display: block;
    font-size: 0.8rem;
    color: #7dd3fc;
    margin-top: 4px;
}
/* News */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.news-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 28px;
    transition: all 0.3s ease;
}
.news-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(103, 232, 249, 0.3);
}
.news-tag {
    display: inline-block;
    background: rgba(14, 165, 233, 0.15);
    color: #67e8f9;
    font-size: 0.8rem;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 14px;
}
.news-card h3 {
    font-size: 1.25rem;
    color: #f0f9ff;
    margin-bottom: 10px;
    line-height: 1.4;
}
.news-date {
    font-size: 0.85rem;
    color: #67e8f9;
    display: block;
    margin-bottom: 12px;
}
.news-card p {
    font-size: 0.95rem;
    line-height: 1.75;
    color: #a8c7df;
}
.news-more {
    display: inline-block;
    margin-top: 14px;
    font-size: 0.9rem;
    color: #7dd3fc;
}
/* Testimonials */
.test-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.test-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 18px;
    padding: 28px;
    text-align: center;
}
.test-card .avatar {
    font-size: 2.5rem;
    margin-bottom: 12px;
}
.test-card p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: #b6d7f0;
    font-style: italic;
}
.test-card .name {
    margin-top: 14px;
    font-size: 0.85rem;
    color: #67e8f9;
}
/* FAQ */
.faq-wrap {
    max-width: 850px;
    margin: 0 auto;
}
.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 16px;
    padding: 24px 28px;
    margin-bottom: 18px;
    transition: all 0.3s ease;
}
.faq-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(103, 232, 249, 0.2);
}
.faq-question {
    font-size: 1.15rem;
    font-weight: 600;
    color: #e0f2fe;
    margin-bottom: 12px;
}
.faq-answer {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #a8c7df;
}
/* Download */
.download-section {
    background: linear-gradient(135deg, #0b1a2e, #0e2b4a);
}
.download-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
}
.download-img img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.download-content h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
    color: #e0f2fe;
}
.download-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: #a8c7df;
    margin-bottom: 24px;
}
.download-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #e0f2fe;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}
.download-btn:hover {
    background: rgba(255, 255, 255, 0.14);
}
/* CTA */
.cta-section {
    padding: 80px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(14, 165, 233, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
}
.cta-section h2 {
    font-size: 2.4rem;
    color: #f0f9ff;
    margin-bottom: 16px;
}
.cta-section p {
    font-size: 1.1rem;
    color: #b6d7f0;
    margin-bottom: 32px;
}
/* Footer */
.footer {
    background: #081620;
    padding: 60px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}
.footer-brand h3 {
    font-size: 1.5rem;
    color: #e0f2fe;
    margin-bottom: 12px;
}
.footer-brand p {
    font-size: 0.9rem;
    color: #8aabc4;
    line-height: 1.6;
}
.footer-links h4 {
    color: #e0f2fe;
    font-size: 1.05rem;
    margin-bottom: 16px;
}
.footer-links ul {
    list-style: none;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: #8aabc4;
    font-size: 0.9rem;
}
.footer-links a:hover {
    color: #67e8f9;
}
.footer-contact h4 {
    color: #e0f2fe;
    font-size: 1.05rem;
    margin-bottom: 16px;
}
.footer-contact p {
    font-size: 0.9rem;
    color: #8aabc4;
    line-height: 1.7;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: #6588a5;
}
.footer-bottom a {
    color: #8aabc4;
}
.footer-bottom a:hover {
    color: #67e8f9;
}
/* Responsive */
@media (max-width: 992px) {
    .hero-grid, .brand-grid, .download-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .adv-grid, .events-grid, .news-grid {
        grid-template-columns: 1fr;
    }
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .test-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .hero-text h2 {
        font-size: 2rem;
    }
}
@media (max-width: 576px) {
    .stats-grid, .highlights-grid {
        grid-template-columns: 1fr;
    }
    .nav-links a {
        padding: 6px 10px;
        font-size: 0.85rem;
    }
    .section {
        padding: 50px 0;
    }
}