/* 开云体育全站样式 */
:root {
    --page-bg: #EAF2FB;
    --surface: #FFFFFF;
    --surface-soft: #F4F8FF;
    --surface-blue: #EDF5FF;
    --surface-deep: #E1ECF8;
    --blue: #2FA8F7;
    --blue-light: #45C7FF;
    --blue-dark: #137CD8;
    --title: #137CD8;
    --text: #24364F;
    --muted: #5D718A;
    --border: rgba(47,168,247,0.14);
    --footer: #102B46;
    --footer-text: #EAF6FF;
    --shadow: 0 18px 48px rgba(29, 93, 145, 0.12);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 18px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: hidden; }
html { scroll-behavior: smooth; }
body {
    background: var(--page-bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
body.drawer-open { overflow-y: hidden; }
a { color: inherit; text-decoration: none; touch-action: manipulation; }
button { font: inherit; touch-action: manipulation; }
img { max-width: 100%; height: auto; display: block; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--blue-dark); padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 9000; background: rgba(255,255,255,.94); backdrop-filter: blur(18px); border-bottom: 1px solid var(--border); }
.desktop-header { min-height: 76px; display: grid; grid-template-columns: 190px 1fr auto; align-items: center; gap: 24px; }
.brand-logo img { width: 142px; max-height: 52px; object-fit: contain; }
.desktop-nav { display: flex; justify-content: center; align-items: stretch; gap: 8px; min-width: 0; }
.nav-link { position: relative; display: inline-flex; align-items: center; min-height: 48px; padding: 0 18px; border-radius: 999px; color: var(--muted); font-weight: 700; white-space: nowrap; }
.nav-link:hover { color: var(--blue-dark); background: var(--surface-blue); }
.nav-link.active { color: var(--blue-dark); }
.nav-link.active::after { content: ""; position: absolute; left: 28%; right: 28%; bottom: 3px; height: 3px; border-radius: 3px; background: var(--blue); }
.main-btn { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; padding: 0 24px; color: #fff; font-weight: 800; border-radius: 999px; background: linear-gradient(135deg, #45C7FF 0%, #2FA8F7 48%, #137CD8 100%); box-shadow: 0 12px 26px rgba(19,124,216,0.18); border: 0; }
.main-btn:hover { transform: translateY(-1px); box-shadow: 0 15px 30px rgba(19,124,216,.24); }
.header-register { min-width: 92px; }
.mobile-header { display: none; }
.channel-bar { background: rgba(244,248,255,.94); border-bottom: 1px solid var(--border); }
.channel-scroll { display: flex; gap: 8px; overflow-x: auto; padding-top: 11px; padding-bottom: 11px; scrollbar-width: none; }
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-link { flex: 0 0 auto; padding: 7px 13px; border-radius: 999px; color: var(--muted); font-size: 14px; line-height: 1.4; white-space: nowrap; }
.channel-link:hover, .channel-link.active { color: #fff; background: var(--blue); }
.drawer-mask { display: none; position: fixed; inset: 0; z-index: 9990; background: rgba(9,29,48,.48); opacity: 0; pointer-events: none; transition: opacity .24s ease; }
.drawer-mask.is-open { display: block; opacity: 1; pointer-events: auto; }
.mobile-drawer { position: fixed; inset: 0 auto 0 0; width: min(86vw, 360px); z-index: 10000; background: #fff; transform: translateX(-104%); transition: transform .26s ease; box-shadow: 18px 0 50px rgba(7,38,65,.2); overflow-y: auto; overscroll-behavior: contain; }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { position: sticky; top: 0; z-index: 2; min-height: 72px; display: flex; align-items: center; justify-content: space-between; padding: 12px 18px; background: rgba(255,255,255,.98); border-bottom: 1px solid var(--border); }
.drawer-logo img { width: 128px; max-height: 48px; object-fit: contain; }
.drawer-close { width: 44px; height: 44px; border: 0; border-radius: 50%; background: var(--surface-blue); color: var(--blue-dark); font-size: 30px; line-height: 1; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 16px 16px 32px; }
.drawer-link { min-height: 46px; display: flex; align-items: center; padding: 8px 12px; border-radius: 14px; color: var(--muted); background: var(--surface-soft); border: 1px solid transparent; }
.drawer-link:hover, .drawer-link.active { color: var(--blue-dark); border-color: var(--border); background: var(--surface-blue); }
.floating-service { position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 8000; width: 112px; display: grid; gap: 8px; padding: 12px; border-radius: 22px; background: rgba(255,255,255,.95); box-shadow: var(--shadow); border: 1px solid var(--border); }
.floating-service a:not(.main-btn), .floating-service button { min-height: 38px; display: flex; align-items: center; justify-content: center; padding: 6px; border: 0; border-radius: 12px; color: var(--blue-dark); background: var(--surface-soft); cursor: pointer; font-size: 13px; }
.floating-service a:not(.main-btn):hover, .floating-service button:hover { background: var(--surface-blue); }
.float-register { min-height: 40px; padding: 0 12px; }
main { min-height: 60vh; }
.section { padding: 72px 0; }
.section.compact { padding: 48px 0; }
.section-head { max-width: 780px; margin: 0 auto 32px; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--blue-dark); font-size: 14px; font-weight: 800; letter-spacing: .12em; }
.eyebrow::before, .eyebrow::after { content: ""; width: 20px; height: 2px; border-radius: 3px; background: var(--blue-light); }
h1, h2, h3 { margin-top: 0; color: var(--title); line-height: 1.3; }
h1 { font-size: clamp(32px, 5vw, 54px); margin-bottom: 18px; }
h2 { font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 14px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: 18px; }
.text-link { color: var(--blue-dark); font-weight: 800; }
.text-link:hover { text-decoration: underline; }
.hero-inner { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 48px; padding: 56px; border-radius: var(--radius-xl); background: linear-gradient(145deg,#fff 0%,#F4F8FF 100%); box-shadow: var(--shadow); border: 1px solid var(--border); }
.hero-copy { max-width: 660px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 26px; }
.hero-media { min-width: 0; }
.hero-media img { width: 100%; max-height: 430px; object-fit: contain; border-radius: var(--radius-lg); background: var(--surface-blue); }
.banner-wrap { padding: 32px 0 12px; background: var(--page-bg); }
.banner-slider { position: relative; z-index: 1; overflow: hidden; border-radius: 34px; background: #fff; box-shadow: var(--shadow); border: 1px solid var(--border); aspect-ratio: 16 / 5.7; min-height: 240px; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease; }
.slide.is-active { opacity: 1; visibility: visible; }
.slide img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.slider-arrow { position: absolute; top: 50%; z-index: 3; width: 46px; height: 46px; transform: translateY(-50%); border: 0; border-radius: 50%; color: var(--blue-dark); background: rgba(255,255,255,.9); box-shadow: 0 8px 22px rgba(24,77,119,.2); cursor: pointer; }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; left: 50%; bottom: 18px; z-index: 3; transform: translateX(-50%); display: flex; gap: 9px; }
.slider-dot { width: 12px; height: 12px; padding: 0; border: 2px solid rgba(255,255,255,.96); border-radius: 50%; background: rgba(19,124,216,.35); box-shadow: 0 2px 8px rgba(0,0,0,.12); cursor: pointer; }
.slider-dot.is-active { width: 28px; border-radius: 999px; background: var(--blue); }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.content-card { min-width: 0; padding: 26px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: 0 12px 36px rgba(29,93,145,.08); }
.content-card.soft { background: var(--surface-soft); box-shadow: none; }
.content-card img { width: 100%; max-height: 250px; margin-bottom: 20px; object-fit: contain; border-radius: 18px; background: var(--surface-blue); }
.content-card ul { margin: 12px 0 18px; padding-left: 20px; color: var(--muted); }
.content-card p { color: var(--muted); }
.quick-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.quick-item { padding: 22px; border-radius: 20px; background: #fff; border: 1px solid var(--border); transition: .2s ease; }
.quick-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.quick-item h3 { font-size: 19px; }
.quick-item p { min-height: 54px; color: var(--muted); font-size: 15px; }
.notice-strip { padding: 26px 30px; border-radius: 22px; background: linear-gradient(100deg, #137CD8 0%, #2FA8F7 55%, #45C7FF 100%); color: #fff; box-shadow: 0 18px 38px rgba(19,124,216,.2); }
.notice-strip p { margin: 0; }
.info-board { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); border-radius: 26px; overflow: hidden; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.info-cell { padding: 26px; border-right: 1px solid var(--border); }
.info-cell:last-child { border-right: 0; }
.info-cell p { color: var(--muted); margin-bottom: 0; }
.split-feature { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.feature-panel { padding: 30px; border-radius: 28px; background: #fff; border: 1px solid var(--border); box-shadow: 0 14px 38px rgba(29,93,145,.08); }
.feature-panel img { width: 100%; max-height: 320px; object-fit: contain; border-radius: 20px; background: var(--surface-blue); margin-bottom: 22px; }
.feature-panel p { color: var(--muted); }
.mini-list { display: grid; gap: 10px; margin: 16px 0 0; }
.mini-list span { display: flex; gap: 10px; color: var(--muted); }
.mini-list span::before { content: ""; flex: 0 0 auto; width: 8px; height: 8px; margin-top: 10px; border-radius: 50%; background: var(--blue); }
.review-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.review-card { padding: 24px; border-radius: 22px; background: #fff; border: 1px solid var(--border); }
.review-card p { margin-bottom: 10px; color: var(--text); }
.review-card span { color: var(--muted); font-size: 14px; }
.faq-list { display: grid; gap: 14px; max-width: 920px; margin: 0 auto; }
details { border-radius: 18px; background: #fff; border: 1px solid var(--border); overflow: hidden; }
summary { position: relative; min-height: 58px; display: flex; align-items: center; padding: 16px 54px 16px 20px; color: var(--title); font-weight: 800; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 25px; color: var(--blue); }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 20px 20px; color: var(--muted); }
.page-hero { padding: 62px 0 28px; }
.page-hero .hero-inner { padding: 48px; }
.article-shell { max-width: 920px; margin: 0 auto; }
.prose { padding: 36px; border-radius: 28px; background: #fff; border: 1px solid var(--border); box-shadow: 0 14px 38px rgba(29,93,145,.08); }
.prose h2 { margin-top: 34px; font-size: 28px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--muted); }
.prose ul, .prose ol { padding-left: 24px; }
.steps { counter-reset: step; display: grid; gap: 16px; }
.step { position: relative; padding: 22px 22px 22px 74px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 20px; top: 20px; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: #fff; font-weight: 800; background: var(--blue); }
.callout { padding: 24px 28px; border-left: 5px solid var(--blue); border-radius: 16px; background: var(--surface-blue); color: var(--text); }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { display: inline-flex; padding: 7px 13px; border-radius: 999px; background: var(--surface-blue); color: var(--blue-dark); font-size: 14px; font-weight: 700; }
.contact-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.contact-card { padding: 26px; border-radius: 22px; background: #fff; border: 1px solid var(--border); }
.contact-card p { color: var(--muted); }
.site-footer { margin-top: 72px; padding: 58px 0 0; background: var(--footer); color: var(--footer-text); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 34px; }
.site-footer h2 { color: #fff; font-size: 18px; }
.site-footer p { color: rgba(234,246,255,.78); }
.site-footer section:not(.footer-brand) a { display: block; margin: 8px 0; color: rgba(234,246,255,.82); }
.footer-logo img { width: 150px; max-height: 52px; object-fit: contain; margin-bottom: 18px; }
.footer-app-link { color: #fff; font-weight: 800; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; margin-top: 38px; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.12); color: rgba(234,246,255,.72); font-size: 14px; }
.mobile-bottom-nav { display: none; }

@media (max-width: 1260px) {
    .floating-service { display: none; }
}
@media (max-width: 960px) {
    .desktop-header { grid-template-columns: 150px 1fr auto; gap: 12px; }
    .nav-link { padding: 0 11px; font-size: 14px; }
    .hero-inner { grid-template-columns: 1fr; padding: 40px; }
    .hero-media { order: -1; }
    .hero-media img { max-height: 360px; }
    .card-grid.four, .info-board { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .info-cell:nth-child(2) { border-right: 0; }
    .info-cell:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
    .quick-grid, .card-grid, .review-grid, .contact-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .footer-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 760px) {
    .shell { width: min(100% - 28px, 680px); }
    .site-header { position: sticky; }
    .desktop-header, .channel-bar { display: none; }
    .mobile-header { position: relative; z-index: 9000; min-height: 66px; display: grid; grid-template-columns: 50px 1fr auto; align-items: center; gap: 10px; padding: 8px 14px; background: rgba(255,255,255,.97); }
    .menu-button { width: 46px; height: 46px; display: grid; align-content: center; justify-content: center; gap: 5px; border: 0; border-radius: 14px; background: var(--surface-blue); cursor: pointer; }
    .menu-button span { width: 22px; height: 2px; border-radius: 3px; background: var(--blue-dark); }
    .mobile-logo { justify-self: center; min-width: 0; }
    .mobile-logo img { width: 120px; max-height: 44px; object-fit: contain; }
    .mobile-register { position: relative; z-index: 9100; min-width: 76px; min-height: 44px; padding: 0 16px; }
    .section { padding: 50px 0; }
    .section.compact { padding: 34px 0; }
    .banner-wrap { padding-top: 18px; }
    .banner-slider { min-height: 190px; border-radius: 22px; aspect-ratio: 16 / 8.3; }
    .slider-arrow { width: 44px; height: 44px; }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .slider-dots { bottom: 11px; }
    .hero-inner, .page-hero .hero-inner { padding: 28px 22px; border-radius: 24px; }
    h1 { font-size: 34px; }
    h2 { font-size: 28px; }
    .lead { font-size: 16px; }
    .card-grid, .card-grid.two, .card-grid.four, .quick-grid, .review-grid, .contact-grid, .split-feature, .info-board, .footer-grid { grid-template-columns: 1fr; }
    .info-cell, .info-cell:nth-child(2), .info-cell:nth-child(-n+2) { border-right: 0; border-bottom: 1px solid var(--border); }
    .info-cell:last-child { border-bottom: 0; }
    .quick-item p { min-height: 0; }
    .content-card, .feature-panel, .prose { padding: 22px; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 8500; min-height: 66px; display: grid; grid-template-columns: repeat(4,1fr); padding-bottom: env(safe-area-inset-bottom); background: rgba(255,255,255,.97); border-top: 1px solid var(--border); box-shadow: 0 -10px 30px rgba(29,93,145,.1); }
    .mobile-bottom-nav a { min-height: 62px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: var(--muted); font-size: 12px; }
    .mobile-bottom-nav span { width: 26px; height: 26px; display: grid; place-items: center; border-radius: 9px; color: var(--blue-dark); background: var(--surface-blue); font-weight: 800; }
    .site-footer { margin-top: 50px; padding-bottom: 78px; }
    .footer-bottom { justify-content: flex-start; }
    body { padding-bottom: env(safe-area-inset-bottom); }
}
@media (max-width: 420px) {
    .mobile-header { grid-template-columns: 46px 1fr 72px; padding-inline: 10px; }
    .mobile-logo img { width: 104px; }
    .mobile-register { min-width: 68px; padding-inline: 12px; }
    .drawer-nav { grid-template-columns: 1fr 1fr; padding-inline: 12px; }
    .banner-slider { min-height: 168px; }
    .slider-arrow { width: 42px; height: 42px; }
}