* {
    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, #0b1220 0%, #1e293b 55%, #334155 100%);
    background-attachment: fixed;
    color: #e2e8f0;
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.nav-bar {
    background: rgba(10, 15, 26, 0.96);
    border-bottom: 2px solid #1e293b;
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(14px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 70px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 8px 2px;
    border-bottom: 3px solid transparent;
    transition: color 0.3s, border-color 0.3s;
    letter-spacing: 0.3px;
}

.nav-links a:hover {
    color: #ffffff;
    border-bottom-color: #dc2626;
}

.nav-links .brand-link {
    color: #f1f5f9;
    font-size: 19px;
    font-weight: 800;
    letter-spacing: 1px;
    margin-right: 22px;
    border-bottom: none;
    position: relative;
}

.nav-links .brand-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #dc2626, #f59e0b);
    border-radius: 3px;
}

/* ===== Hero / GEO ===== */
.geo-intro {
    position: relative;
    padding: 90px 0 76px;
    overflow: hidden;
    background: radial-gradient(ellipse at 80% 20%, #1e293b 0%, #0b1220 70%);
    border-bottom: 1px solid #1e293b;
}

.geo-intro::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -60px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(220, 38, 38, 0.25) 0%, transparent 65%);
    pointer-events: none;
}

.geo-intro .container {
    position: relative;
    z-index: 2;
}

.geo-intro h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.2;
    color: #f1f5f9;
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-shadow: 0 4px 18px rgba(0, 0, 0, 0.5);
}

.geo-intro h1 span {
    color: #dc2626;
}

.geo-desc {
    font-size: 17px;
    color: #94a3b8;
    max-width: 840px;
    margin-bottom: 36px;
    line-height: 1.8;
    border-left: 3px solid #dc2626;
    padding-left: 20px;
}

.hero-buttons {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: #ffffff;
    font-weight: 700;
    padding: 14px 36px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 8px 24px rgba(220, 38, 38, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(220, 38, 38, 0.45);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    border: 2px solid #475569;
    color: #cbd5e1;
    font-weight: 600;
    padding: 13px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s;
}

.btn-secondary:hover {
    border-color: #94a3b8;
    color: #ffffff;
    background: rgba(148, 163, 184, 0.08);
}

/* ===== 通用 Section ===== */
.section {
    padding: 78px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 34px;
    font-weight: 800;
    color: #f1f5f9;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
    margin-bottom: 8px;
}

.section-header h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 4px;
    background: linear-gradient(90deg, #dc2626, #f59e0b);
    border-radius: 4px;
}

.section-header p {
    color: #94a3b8;
    font-size: 16px;
    max-width: 680px;
    margin: 0 auto;
}

.section-header .tag-label {
    display: inline-block;
    background: rgba(220, 38, 38, 0.15);
    border: 1px solid rgba(220, 38, 38, 0.4);
    color: #f87171;
    font-size: 13px;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

/* ===== 数据统计 ===== */
.data-stats {
    background: #0f172a;
    border-top: 1px solid #1e293b;
    border-bottom: 1px solid #1e293b;
    padding: 64px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    background: linear-gradient(145deg, #1e293b 0%, #131c2b 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 36px 24px;
    text-align: center;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #dc2626, transparent);
    opacity: 0.5;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.45);
}

.stat-num {
    font-size: 44px;
    font-weight: 800;
    background: linear-gradient(120deg, #f1f5f9, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    margin-bottom: 8px;
}

.stat-label {
    color: #94a3b8;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.stat-icon {
    font-size: 32px;
    margin-bottom: 14px;
}

/* ===== 核心优势 ===== */
.core-advantages {
    background: #0b1220;
}

.adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-top: 20px;
}

.adv-card {
    background: linear-gradient(145deg, #1a2637 0%, #111a28 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 40px 24px;
    text-align: center;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: transform 0.3s, border-color 0.3s;
    position: relative;
}

.adv-card:hover {
    transform: translateY(-5px);
    border-color: rgba(220, 38, 38, 0.3);
}

.adv-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.adv-card h3 {
    font-size: 20px;
    color: #e2e8f0;
    margin-bottom: 12px;
    font-weight: 700;
}

.adv-card p {
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.65;
}

/* ===== 焦点赛事 ===== */
.featured-events {
    background: linear-gradient(180deg, #0f172a 0%, #0b1220 100%);
    border-top: 1px solid #1e293b;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.event-card {
    background: linear-gradient(145deg, #1e2d3d 0%, #14202e 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    transition: transform 0.3s, box-shadow 0.3s;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
}

.event-banner {
    height: 165px;
    background: linear-gradient(145deg, #1e293b, #0f172a);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.event-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.55;
    transition: transform 0.5s;
}

.event-card:hover .event-banner img {
    transform: scale(1.05);
}

.event-status {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(220, 38, 38, 0.85);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    z-index: 2;
}

.event-info {
    padding: 22px;
}

.event-info h3 {
    font-size: 19px;
    color: #f1f5f9;
    margin-bottom: 8px;
    font-weight: 700;
}

.event-info p {
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 6px;
}

.event-teams {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.event-teams .team {
    font-weight: 700;
    color: #e2e8f0;
    font-size: 15px;
}

.event-teams .vs {
    color: #dc2626;
    font-size: 13px;
    font-weight: 800;
}

/* ===== 赛事直播 ===== */
.live-stream {
    background: #0b1220;
    border-top: 1px solid #1e293b;
}

.live-card {
    background: linear-gradient(145deg, #111a28 0%, #0b1220 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 14px;
    padding: 40px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

.live-screen {
    position: relative;
    background: #000;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 16/9;
    border: 2px solid rgba(220, 38, 38, 0.3);
}

.live-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.live-screen .live-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: #dc2626;
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    padding: 4px 14px;
    border-radius: 20px;
    animation: pulse 2s infinite;
}

.live-screen .live-score-board {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 40px 20px 18px;
    text-align: center;
}

.live-screen .score-nums {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 6px;
}

.live-screen .team-names {
    color: #94a3b8;
    font-size: 14px;
    margin-top: 4px;
}

.live-info h3 {
    font-size: 26px;
    color: #f1f5f9;
    margin-bottom: 10px;
}

.live-info p {
    color: #94a3b8;
    margin-bottom: 16px;
    line-height: 1.7;
}

.live-meta {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.live-meta .meta-item {
    background: rgba(148, 163, 184, 0.1);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    color: #cbd5e1;
    font-weight: 600;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

/* ===== 热门排行 ===== */
.rankings {
    background: linear-gradient(180deg, #0b1220 0%, #0f172a 100%);
}

.rank-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
    background: linear-gradient(145deg, #111a28, #0d1520);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.4);
}

.rank-table th {
    background: rgba(14, 20, 32, 0.95);
    color: #94a3b8;
    font-size: 13px;
    font-weight: 700;
    padding: 16px 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid #1e293b;
    text-align: center;
}

.rank-table td {
    padding: 18px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    text-align: center;
    font-size: 15px;
    color: #cbd5e1;
}

.rank-table tr:last-child td {
    border-bottom: none;
}

.rank-table tr:hover td {
    background: rgba(30, 41, 59, 0.5);
}

.rank-num {
    font-weight: 800;
    font-size: 20px;
    color: #f1f5f9;
}

.rank-num.top {
    color: #f59e0b;
}

.rank-team {
    text-align: left;
    font-weight: 700;
    font-size: 16px;
    color: #e2e8f0;
}

.rank-wl {
    color: #64748b;
}

.rank-form {
    letter-spacing: 2px;
}

.form-w {
    color: #22c55e;
}

.form-l {
    color: #ef4444;
}

/* ===== 新闻列表 ===== */
.news-list {
    background: #0b1220;
    border-top: 1px solid #1e293b;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.news-item {
    background: linear-gradient(145deg, #1a2637 0%, #111a28 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.4);
}

.news-thumb {
    height: 160px;
    overflow: hidden;
    position: relative;
    background: #111a28;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.55;
    transition: transform 0.5s, opacity 0.3s;
}

.news-item:hover .news-thumb img {
    transform: scale(1.05);
    opacity: 0.7;
}

.news-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(220, 38, 38, 0.9);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 20px;
}

.news-content {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-content h3 {
    font-size: 18px;
    color: #f1f5f9;
    margin-bottom: 10px;
    line-height: 1.3;
    font-weight: 700;
}

.news-content h3 a {
    color: inherit;
    text-decoration: none;
}

.news-content h3 a:hover {
    color: #f87171;
}

.news-date {
    font-size: 13px;
    color: #64748b;
    font-weight: 600;
    margin-bottom: 10px;
}

.news-excerpt {
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.65;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
}

.news-more {
    font-size: 14px;
    color: #dc2626;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.news-more:hover {
    color: #f87171;
}

/* ===== FAQ ===== */
.faq {
    background: linear-gradient(180deg, #0f172a 0%, #0b1220 100%);
    border-top: 1px solid #1e293b;
}

.faq-grid {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: linear-gradient(145deg, #1a2637 0%, #111a28 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 28px 30px;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.3);
    transition: border-color 0.3s;
}

.faq-item:hover {
    border-color: rgba(220, 38, 38, 0.2);
}

.faq-item h3 {
    font-size: 18px;
    color: #f1f5f9;
    margin-bottom: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-item h3::before {
    content: "Q";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: #dc2626;
    color: #fff;
    font-size: 14px;
    font-weight: 800;
    border-radius: 50%;
    flex-shrink: 0;
}

.faq-item p {
    font-size: 15px;
    color: #94a3b8;
    line-height: 1.7;
    padding-left: 38px;
}

/* ===== 品牌故事 ===== */
.brand-story {
    background: #0b1220;
}

.brand-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.brand-img {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.brand-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.brand-text h2 {
    font-size: 34px;
    font-weight: 800;
    color: #f1f5f9;
    margin-bottom: 22px;
    letter-spacing: 1px;
}

.brand-text h2 span {
    color: #dc2626;
}

.brand-text p {
    color: #94a3b8;
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 16px;
}

/* ===== CTA ===== */
.cta {
    background: linear-gradient(135deg, #111a28 0%, #0d1520 100%);
    border-top: 1px solid #1e293b;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: "";
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(220, 38, 38, 0.2) 0%, transparent 60%);
}

.cta .container {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta h2 {
    font-size: 38px;
    font-weight: 800;
    color: #f1f5f9;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.cta p {
    color: #94a3b8;
    font-size: 17px;
    max-width: 640px;
    margin: 0 auto 30px;
    line-height: 1.7;
}

.cta .btn-primary {
    padding: 16px 44px;
    font-size: 18px;
}

/* ===== 下载中心 ===== */
.download {
    background: #0f172a;
    border-top: 1px solid #1e293b;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.download-card {
    background: linear-gradient(145deg, #1a2637 0%, #111a28 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 38px 26px;
    text-align: center;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    transition: transform 0.3s;
}

.download-card:hover {
    transform: translateY(-4px);
}

.download-icon {
    font-size: 50px;
    margin-bottom: 18px;
    display: block;
}

.download-card h3 {
    font-size: 20px;
    color: #f1f5f9;
    margin-bottom: 10px;
    font-weight: 700;
}

.download-card p {
    color: #94a3b8;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.download-link {
    color: #dc2626;
    font-weight: 600;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.download-link:hover {
    color: #f87171;
}

/* ===== 页脚 ===== */
.footer {
    background: #0a0f18;
    border-top: 2px solid #1e293b;
    padding: 54px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #1e293b;
    margin-bottom: 24px;
}

.footer-brand h3 {
    font-size: 24px;
    font-weight: 800;
    color: #f1f5f9;
    margin-bottom: 12px;
}

.footer-brand p {
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 16px;
    color: #e2e8f0;
    margin-bottom: 16px;
    font-weight: 700;
}

.footer-col a {
    display: block;
    color: #64748b;
    font-size: 14px;
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: #e2e8f0;
}

.footer-info {
    padding-bottom: 24px;
    border-bottom: 1px solid #1e293b;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: #64748b;
    font-size: 14px;
}

.footer-info span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
}

.footer-bottom p {
    color: #475569;
    font-size: 13px;
}

.footer-bottom a {
    color: #64748b;
    font-size: 13px;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-bottom a:hover {
    color: #94a3b8;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .events-grid {
        grid-template-columns: 1fr;
    }
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .brand-inner {
        grid-template-columns: 1fr;
    }
    .download-grid {
        grid-template-columns: 1fr;
    }
    .live-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .nav-inner {
        height: auto;
        padding: 14px 0;
    }
    .nav-links {
        flex-wrap: wrap;
        gap: 14px;
        justify-content: center;
    }
    .geo-intro h1 {
        font-size: 30px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .adv-grid {
        grid-template-columns: 1fr;
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
    .footer-top {
        grid-template-columns: 1fr;
    }
}