* {
    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;
}
html {
    scroll-behavior: smooth;
}
body {
    background: linear-gradient(145deg, #f0f9ff 0%, #e0f2fe 25%, #bae6fd 55%, #7dd3fc 100%);
    background-attachment: fixed;
    color: #1e3a5f;
    line-height: 1.75;
    overflow-x: hidden;
}
a {
    text-decoration: none;
    color: inherit;
    transition: all .3s ease;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.section {
    padding: 70px 0;
}
.card {
    background: rgba(255, 255, 255, 0.58);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 18px;
    box-shadow: 0 8px 40px rgba(14, 165, 233, 0.08);
    transition: transform .35s ease, box-shadow .35s ease;
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 50px rgba(14, 165, 233, 0.18);
}
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
}
h2 {
    font-size: 2.1rem;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    letter-spacing: 1px;
}
h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #0ea5e9, #1e3a5f);
    border-radius: 3px;
    margin: 14px auto 0;
}
.section-subtitle {
    text-align: center;
    color: #4a6a8a;
    font-size: 1rem;
    margin-top: -24px;
    margin-bottom: 40px;
}

/* 导航栏 */
.navbar {
    background: linear-gradient(90deg, rgba(30, 58, 95, 0.92), rgba(14, 165, 233, 0.85));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 24px rgba(30, 58, 95, 0.25);
    border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}
.nav-links {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    flex-wrap: wrap;
}
.nav-links a {
    color: #f0f9ff;
    padding: 8px 22px;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: .5px;
    border: 1px solid transparent;
    white-space: nowrap;
}
.nav-links a:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.03);
}

/* GEO 介绍区 */
.geo-section {
    padding: 80px 0 50px;
    text-align: center;
    position: relative;
}
.geo-section h1 {
    font-size: 2.5rem;
    color: #1e3a5f;
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(255, 255, 255, 0.6);
}
.geo-section .geo-desc {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 32px 40px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 32px rgba(14, 165, 233, 0.08);
    text-align: left;
    font-size: 1.02rem;
    line-height: 1.9;
}
.geo-section img {
    max-width: 100px;
    margin: 24px auto 0;
    opacity: .85;
}

/* 数据统计 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-card {
    text-align: center;
    padding: 36px 20px;
}
.stat-card .num {
    font-size: 2.6rem;
    font-weight: 700;
    color: #0ea5e9;
    margin-bottom: 4px;
}
.stat-card .label {
    color: #1e3a5f;
    font-size: 0.95rem;
    font-weight: 500;
}
.stat-card img {
    width: 48px;
    height: 48px;
    margin: 0 auto 14px;
    border-radius: 12px;
}

/* 核心优势 */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.adv-card {
    padding: 36px 28px;
    text-align: center;
}
.adv-card img {
    width: 64px;
    height: 64px;
    margin: 0 auto 18px;
    border-radius: 14px;
}
.adv-card h3 {
    font-size: 1.25rem;
    margin-bottom: 14px;
    color: #1e3a5f;
}
.adv-card p {
    color: #456a8a;
    font-size: 0.95rem;
    text-align: justify;
}

/* 品牌故事 */
.brand-story-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.brand-story-wrap img {
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(14, 165, 233, 0.12);
    height: 100%;
    object-fit: cover;
    min-height: 320px;
}
.brand-story-content h3 {
    font-size: 1.6rem;
    margin-bottom: 16px;
    color: #1e3a5f;
}
.brand-story-content p {
    margin-bottom: 16px;
    color: #3d5f7d;
    text-align: justify;
}

/* 焦点赛事 */
.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.event-card {
    padding: 24px;
    text-align: center;
}
.event-card img {
    height: 200px;
    object-fit: cover;
    width: 100%;
    margin-bottom: 16px;
    border-radius: 14px;
}
.event-card h3 {
    margin-bottom: 10px;
    font-size: 1.15rem;
}
.event-card p {
    color: #456a8a;
    font-size: 0.93rem;
}

/* 服务覆盖 */
.coverage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.cov-item {
    text-align: center;
    padding: 24px 16px;
}
.cov-item img {
    width: 54px;
    height: 54px;
    margin: 0 auto 12px;
    border-radius: 12px;
}
.cov-item h4 {
    font-size: 1.05rem;
    margin-bottom: 6px;
    color: #1e3a5f;
}
.cov-item span {
    color: #5a7d99;
    font-size: 0.9rem;
}

/* 下载中心 */
.download-wrap {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}
.download-wrap img {
    max-height: 340px;
    object-fit: contain;
    margin: 0 auto;
}
.download-content h3 {
    font-size: 1.6rem;
    margin-bottom: 12px;
}
.download-content p {
    color: #3d5f7d;
    margin-bottom: 24px;
    text-align: justify;
}
.download-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.download-btns a {
    background: linear-gradient(135deg, #0ea5e9, #1e3a5f);
    color: #fff;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    border: none;
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.25);
}
.download-btns a:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(14, 165, 233, 0.35);
}

/* 合作伙伴 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}
.partner-card {
    text-align: center;
    padding: 24px 12px;
}
.partner-card img {
    width: 68px;
    height: 68px;
    margin: 0 auto 12px;
    border-radius: 16px;
    background: #f0f9ff;
    padding: 6px;
    object-fit: contain;
}
.partner-card h4 {
    font-size: 0.95rem;
    color: #1e3a5f;
}

/* 新闻板块 */
.news-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.news-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.news-card img {
    height: 180px;
    object-fit: cover;
    width: 100%;
    border-radius: 18px 18px 0 0;
}
.news-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-tag {
    display: inline-block;
    background: rgba(14, 165, 233, 0.15);
    color: #0ea5e9;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 10px;
    align-self: flex-start;
    border: 1px solid rgba(14, 165, 233, 0.25);
}
.news-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    line-height: 1.45;
    color: #1e3a5f;
}
.news-date {
    color: #0ea5e9;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.news-card p {
    color: #456a8a;
    font-size: 0.93rem;
    line-height: 1.7;
    flex: 1;
}

/* FAQ */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.faq-item {
    padding: 28px 30px;
    background: rgba(255, 255, 255, 0.68);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: 0 4px 24px rgba(14, 165, 233, 0.06);
}
.faq-item h3 {
    font-size: 1.1rem;
    color: #1e3a5f;
    margin-bottom: 12px;
    padding-left: 16px;
    border-left: 4px solid #0ea5e9;
}
.faq-item p {
    color: #456a8a;
    font-size: 0.95rem;
    line-height: 1.8;
    text-align: justify;
}

/* 页脚 */
.footer {
    background: linear-gradient(180deg, #1e3a5f, #162c46);
    color: #b8cfdf;
    padding: 50px 0 20px;
    margin-top: 40px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 30px;
}
.footer-info p {
    margin-bottom: 8px;
    font-size: 0.92rem;
}
.footer-links {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
}
.footer-links a {
    padding: 6px 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    transition: all .3s;
}
.footer-links a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
    font-size: 0.8rem;
    color: #8aa5b8;
    line-height: 2;
}

/* 响应式 */
@media (max-width: 992px) {
    .stats-grid, .coverage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantage-grid, .events-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .brand-story-wrap, .download-wrap {
        grid-template-columns: 1fr;
    }
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .news-list {
        grid-template-columns: 1fr;
    }
    .geo-section h1 {
        font-size: 2rem;
    }
}
@media (max-width: 576px) {
    .section {
        padding: 45px 0;
    }
    .stats-grid, .coverage-grid, .advantage-grid, .partners-grid {
        grid-template-columns: 1fr;
    }
    .nav-links a {
        padding: 6px 14px;
        font-size: 0.85rem;
    }
    .geo-section .geo-desc {
        padding: 20px;
    }
}