* {
    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(135deg, #f0f9ff 0%, #e0f2fe 30%, #bae6fd 65%, #e0f2fe 100%);
    min-height: 100vh;
    line-height: 1.75;
    color: #1e3a5f;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
/* ---------- 导航 ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(240, 249, 255, 0.82);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 2px 30px rgba(14, 165, 233, 0.08);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 64px;
}
.nav-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}
.nav-links a {
    display: inline-block;
    padding: 8px 18px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 14px;
    color: #1e3a5f;
    background: transparent;
    border: 1px solid transparent;
}
.nav-links a:hover {
    background: linear-gradient(135deg, #0ea5e9, #1e3a5f);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.25);
}
/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 100px 0 80px;
    text-align: center;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -30%;
    width: 160%;
    height: 200%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 60%);
    pointer-events: none;
}
.hero .container {
    position: relative;
    z-index: 1;
}
.hero h1 {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #0ea5e9 10%, #1e3a5f 60%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    line-height: 1.3;
}
.hero-subtitle {
    font-size: 18px;
    color: #3b5b7a;
    max-width: 780px;
    margin: 0 auto 36px;
    font-weight: 400;
}
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 40px;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.35s ease;
}
.btn-primary {
    background: linear-gradient(135deg, #0ea5e9, #1e3a5f);
    color: #ffffff;
    box-shadow: 0 6px 24px rgba(14, 165, 233, 0.28);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(14, 165, 233, 0.35);
}
.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: #1e3a5f;
    border: 1px solid rgba(14, 165, 233, 0.4);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    background: #ffffff;
    border-color: #0ea5e9;
    transform: translateY(-3px);
}
.hero-image {
    margin-top: 50px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(14, 165, 233, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.6);
}
.hero-image img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}
/* ---------- GEO 介绍 ---------- */
.geo-intro {
    padding: 30px 0 60px;
}
.geo-box {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 20px;
    padding: 40px 48px;
    box-shadow: 0 4px 40px rgba(14, 165, 233, 0.08);
    font-size: 16px;
    line-height: 1.9;
    color: #1e3a5f;
    text-align: justify;
}
.geo-box strong {
    color: #0ea5e9;
}
/* ---------- 通用区块 ---------- */
.section {
    padding: 70px 0;
}
.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #0ea5e9;
    background: rgba(14, 165, 233, 0.1);
    padding: 4px 14px;
    border-radius: 30px;
    margin-bottom: 16px;
}
.section-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    color: #1e3a5f;
}
.section-desc {
    color: #557a99;
    max-width: 720px;
    margin-bottom: 40px;
    font-size: 15px;
}
/* ---------- 数据统计 ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-card {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 20px;
    padding: 32px 20px;
    text-align: center;
    box-shadow: 0 4px 30px rgba(14, 165, 233, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}
.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(14, 165, 233, 0.15);
}
.stat-icon {
    font-size: 36px;
    margin-bottom: 12px;
}
.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: #0ea5e9;
    line-height: 1.2;
}
.stat-label {
    font-size: 14px;
    color: #557a99;
    margin-top: 6px;
}
/* ---------- 核心优势 ---------- */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.advantage-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 24px;
    padding: 36px 28px;
    box-shadow: 0 4px 30px rgba(14, 165, 233, 0.06);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(14, 165, 233, 0.14);
}
.adv-icon {
    font-size: 40px;
    margin-bottom: 18px;
}
.advantage-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1e3a5f;
}
.advantage-card p {
    font-size: 14px;
    color: #557a99;
    line-height: 1.7;
}
/* ---------- 品牌故事 ---------- */
.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.story-grid img {
    border-radius: 24px;
    box-shadow: 0 16px 50px rgba(14, 165, 233, 0.15);
}
.story-text h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1e3a5f;
}
.story-text p {
    font-size: 15px;
    color: #4a6b88;
    line-height: 1.9;
    margin-bottom: 16px;
}
/* ---------- 时间线 ---------- */
.timeline-wrap {
    position: relative;
    padding: 20px 0;
}
.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 36px;
    position: relative;
}
.timeline-dot {
    flex: 0 0 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0ea5e9, #1e3a5f);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.25);
}
.timeline-content {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 18px;
    padding: 24px 28px;
    flex: 1;
    box-shadow: 0 4px 30px rgba(14, 165, 233, 0.06);
}
.timeline-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
}
.timeline-content p {
    font-size: 14px;
    color: #557a99;
}
/* ---------- 焦点赛事 ---------- */
.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.event-card {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 4px 30px rgba(14, 165, 233, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}
.event-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 46px rgba(14, 165, 233, 0.16);
}
.event-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.event-content {
    padding: 24px;
}
.event-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}
.event-content p {
    font-size: 14px;
    color: #557a99;
    line-height: 1.7;
}
.event-tag {
    display: inline-block;
    background: rgba(14, 165, 233, 0.1);
    color: #0ea5e9;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    margin-top: 12px;
}
/* ---------- 精彩集锦 ---------- */
.highlights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}
.highlight-card {
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 36px rgba(14, 165, 233, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.6);
}
.highlight-card img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.highlight-card:hover img {
    transform: scale(1.04);
}
.highlight-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(30, 58, 95, 0.85), transparent);
    color: #f0f9ff;
    font-weight: 600;
    font-size: 15px;
}
/* ---------- 合作伙伴 ---------- */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.partner-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 18px;
    padding: 28px 18px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(14, 165, 233, 0.06);
    transition: transform 0.3s;
}
.partner-card:hover {
    transform: translateY(-4px);
}
.partner-card img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    margin: 0 auto 12px;
}
.partner-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: #1e3a5f;
}
.partner-card p {
    font-size: 13px;
    color: #6b8aa6;
    margin-top: 4px;
}
/* ---------- 愿景使命 ---------- */
.vm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.vm-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.85), rgba(240, 249, 255, 0.7));
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 4px 30px rgba(14, 165, 233, 0.1);
}
.vm-card h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.vm-card p {
    font-size: 15px;
    color: #43627e;
    line-height: 1.85;
}
/* ---------- 新闻 ---------- */
.news-list-section {
    background: linear-gradient(180deg, transparent, rgba(14, 165, 233, 0.05), transparent);
}
.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}
.news-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 4px 30px rgba(14, 165, 233, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}
.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 46px rgba(14, 165, 233, 0.13);
}
.news-card-img {
    width: 100%;
    height: 190px;
    object-fit: cover;
}
.news-body {
    padding: 24px 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-tag {
    align-self: flex-start;
    background: linear-gradient(135deg, #0ea5e9, #1e3a5f);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 20px;
    margin-bottom: 10px;
}
.news-date {
    font-size: 13px;
    color: #0ea5e9;
    font-weight: 600;
    margin-top: 8px;
}
.news-card h3 {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 8px;
    color: #1e3a5f;
}
.news-card p {
    font-size: 14px;
    color: #557a99;
    line-height: 1.75;
    margin-top: 6px;
}
/* ---------- FAQ ---------- */
.faq-list {
    max-width: 960px;
    margin: 0 auto;
}
.faq-item {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 18px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(14, 165, 233, 0.05);
    transition: box-shadow 0.3s;
}
.faq-item:hover {
    box-shadow: 0 6px 34px rgba(14, 165, 233, 0.12);
}
.faq-item summary {
    padding: 22px 28px;
    cursor: pointer;
    font-weight: 700;
    font-size: 16px;
    color: #1e3a5f;
    list-style: none;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.3);
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: '▾';
    font-size: 13px;
    color: #0ea5e9;
    transition: transform 0.3s;
    margin-left: 12px;
}
.faq-item[open] summary::after {
    transform: rotate(180deg);
}
.faq-item .faq-answer {
    padding: 0 28px 24px;
    font-size: 14px;
    color: #4a6b88;
    line-height: 1.85;
}
/* ---------- 服务覆盖 ---------- */
.coverage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 30px;
}
.coverage-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 20px;
    padding: 28px 20px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(14, 165, 233, 0.05);
    transition: transform 0.3s;
}
.coverage-card:hover {
    transform: translateY(-5px);
}
.coverage-icon {
    font-size: 34px;
    margin-bottom: 12px;
}
.coverage-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}
.coverage-card p {
    font-size: 13px;
    color: #557a99;
}
/* ---------- CTA ---------- */
.cta-section {
    padding: 70px 0;
}
.cta-card {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.12), rgba(30, 58, 95, 0.18));
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 28px;
    padding: 60px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 50px rgba(14, 165, 233, 0.14);
}
.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/img/platform.webp') center / cover no-repeat;
    opacity: 0.08;
    border-radius: 28px;
}
.cta-card h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.cta-card p {
    font-size: 16px;
    color: #43627e;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}
/* ---------- 下载 ---------- */
.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: center;
}
.download-img {
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 12px 44px rgba(14, 165, 233, 0.16);
}
.download-img img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}
.download-text h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 16px;
}
.download-text p {
    font-size: 14px;
    color: #557a99;
    line-height: 1.8;
    margin-bottom: 20px;
}
.download-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
/* ---------- 页脚 ---------- */
.footer {
    background: linear-gradient(135deg, #1e3a5f, #0ea5e9);
    color: #eaf5fd;
    padding: 50px 0 30px;
    margin-top: 40px;
}
.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    font-size: 14px;
    line-height: 1.8;
}
.footer-inner a {
    color: #c4e8fb;
    text-decoration: underline;
    text-underline-offset: 4px;
}
.footer-inner a:hover {
    color: #ffffff;
}
.footer-line {
    margin: 8px 0;
}
.footer-divider {
    width: 80px;
    height: 1px;
    background: rgba(255, 255, 255, 0.3);
    margin: 8px auto;
}
/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantages-grid,
    .events-grid,
    .highlights-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    .partners-grid,
    .coverage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .story-grid,
    .vm-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 32px;
    }
}
@media (max-width: 576px) {
    .nav-links a {
        padding: 8px 10px;
        font-size: 13px;
    }
    .hero {
        padding: 60px 0 40px;
    }
    .hero h1 {
        font-size: 26px;
    }
    .geo-box {
        padding: 24px;
    }
    .section-title {
        font-size: 24px;
    }
    .stats-grid,
    .partners-grid,
    .coverage-grid {
        grid-template-columns: 1fr;
    }
}