* {
    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(160deg, #0b1526 0%, #0f172a 35%, #0d1f2d 70%, #092b2b 100%);
    color: #e5eef0;
    line-height: 1.7;
    overflow-x: hidden;
}
a {
    color: #14b8a6;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #a855f7;
}
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
}
h1 {
    font-size: 2.8rem;
    background: linear-gradient(90deg, #14b8a6, #4ade80, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    text-align: center;
}
h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #fff;
    position: relative;
}
h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, #14b8a6, #a855f7);
    margin: 0.6rem auto 0;
}
h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: #fff;
}
p {
    margin-bottom: 1rem;
}
ul, ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}
li {
    margin-bottom: 0.4rem;
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
}

/* 导航 */
.site-header {
    background: rgba(10, 20, 35, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(20, 184, 166, 0.25);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.8rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #14b8a6;
}
.brand-logo img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}
.nav-links {
    display: flex;
    gap: 1.2rem;
    align-items: center;
    flex-wrap: wrap;
}
.nav-links a {
    font-size: 1rem;
    font-weight: 500;
    color: #d1e0e3;
    padding: 0.45rem 0.9rem;
    border-radius: 30px;
    transition: all 0.3s ease;
    letter-spacing: 0.02em;
}
.nav-links a:hover {
    color: #14b8a6;
    background: rgba(20, 184, 166, 0.08);
}

/* Hero */
.hero {
    position: relative;
    padding: 5rem 1.5rem 4rem;
    text-align: center;
    background:
        linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(20, 184, 166, 0.18)),
        url('/img/sports.webp') no-repeat center/cover;
    min-height: 92vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-inner {
    max-width: 900px;
    margin: 0 auto;
}
.hero-cta {
    margin-top: 2rem;
    display: flex;
    gap: 1.2rem;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 0.85rem 2.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    border: none;
    cursor: pointer;
    transition: all 0.35s ease;
    letter-spacing: 0.03em;
}
.btn-primary {
    background: linear-gradient(135deg, #14b8a6, #0d9488);
    color: #fff;
    box-shadow: 0 4px 20px rgba(20, 184, 166, 0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(20, 184, 166, 0.5);
}
.btn-secondary {
    background: transparent;
    color: #14b8a6;
    border: 2px solid #14b8a6;
}
.btn-secondary:hover {
    background: rgba(20, 184, 166, 0.1);
    transform: translateY(-2px);
}
.btn-purple {
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: #fff;
    box-shadow: 0 4px 20px rgba(168, 85, 247, 0.35);
}
.btn-purple:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(168, 85, 247, 0.55);
}

/* 区块通用 */
.section {
    padding: 4.5rem 1.5rem;
}
.section-inner {
    max-width: 1280px;
    margin: 0 auto;
}
.section-sub {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 3rem;
    color: #9fb3bd;
    font-size: 1.05rem;
}

/* 卡片 */
.card {
    background: linear-gradient(145deg, rgba(20, 184, 166, 0.12), rgba(168, 85, 247, 0.06), rgba(15, 23, 42, 0.55));
    border: 1px solid rgba(20, 184, 166, 0.22);
    border-radius: 18px;
    padding: 2rem;
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}
.card::before {
    content: '';
    position: absolute;
    top: -60%;
    left: -60%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at center, rgba(20, 184, 166, 0.15), transparent 70%);
    animation: auraPulse 5s ease-in-out infinite alternate;
    pointer-events: none;
}
.card:hover {
    transform: translateY(-4px);
    border-color: rgba(20, 184, 166, 0.5);
    box-shadow: 0 12px 40px rgba(20, 184, 166, 0.15);
}
@keyframes auraPulse {
    0% { opacity: 0.5; transform: scale(0.9); }
    100% { opacity: 1; transform: scale(1.2); }
}

/* 数据统计 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.stat-item {
    text-align: center;
    padding: 2rem 1rem;
}
.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(90deg, #14b8a6, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}
.stat-label {
    color: #9fb3bd;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

/* 核心优势 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.adv-item {
    text-align: center;
    padding: 2.5rem 1.5rem;
}
.adv-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

/* 品牌故事 */
.story-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.story-img img {
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* 直播 */
.stream-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.8rem;
}
.stream-card {
    text-align: center;
}
.stream-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 1rem;
}

/* 焦点赛事 */
.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.event-card {
    text-align: center;
}
.event-time {
    font-size: 0.9rem;
    color: #14b8a6;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

/* 新闻 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}
.news-card {
    padding: 1.8rem;
}
.news-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(168, 85, 247, 0.2));
    color: #14b8a6;
    padding: 0.2rem 0.9rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}
.news-date {
    color: #7e949d;
    font-size: 0.85rem;
    margin-left: 0.5rem;
}
.news-card p {
    color: #b6c8cf;
    font-size: 0.95rem;
}

/* 用户口碑 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}
.review-card {
    text-align: center;
}
.review-avatar {
    font-size: 2.5rem;
    margin-bottom: 0.6rem;
}
.rating {
    color: #fbbf24;
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
}

/* FAQ */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}
.faq-item {
    margin-bottom: 1rem;
    overflow: hidden;
}
.faq-q {
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1.2rem 1.5rem;
    background: rgba(20, 184, 166, 0.08);
    border: 1px solid rgba(20, 184, 166, 0.2);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}
.faq-q:hover {
    background: rgba(20, 184, 166, 0.15);
}
.faq-q .icon {
    color: #14b8a6;
    font-weight: 700;
    font-size: 1.4rem;
}
.faq-a {
    padding: 1.2rem 1.5rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(20, 184, 166, 0.12);
    border-top: none;
    color: #b6c8cf;
}

/* CTA */
.cta-section {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15), rgba(168, 85, 247, 0.1));
    text-align: center;
    padding: 4rem 1.5rem;
}

/* 页脚 */
.site-footer {
    background: rgba(10, 18, 30, 0.98);
    border-top: 1px solid rgba(20, 184, 166, 0.15);
    padding: 3rem 1.5rem 1.5rem;
    margin-top: 2rem;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}
.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #fff;
}
.footer-col p, .footer-col a {
    color: #9fb3bd;
    font-size: 0.9rem;
    line-height: 1.8;
    display: block;
}
.footer-col a:hover {
    color: #14b8a6;
}
.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #7e949d;
    font-size: 0.85rem;
}
.footer-bottom a {
    color: #7e949d;
    margin: 0 0.3rem;
}
.footer-bottom a:hover {
    color: #14b8a6;
}

/* 响应式 */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .stream-grid { grid-template-columns: repeat(2, 1fr); }
    .events-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .story-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .stats-grid, .advantages-grid, .stream-grid, .events-grid, .reviews-grid { grid-template-columns: 1fr; }
    .nav-links { gap: 0.5rem; }
    .nav-links a { padding: 0.3rem 0.6rem; font-size: 0.9rem; }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.7rem; }
    .footer-inner { grid-template-columns: 1fr; }
}