/* =========================================================
   半岛体体育 / assets/site.css
   共享外壳 + 基础组件（页面专属布局由页面 CSS 承接）
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --deep:#061A2F;
  --midnight:#0C2745;
  --glass:rgba(16,54,92,.80);
  --cyan:#38F0D0;
  --orange:#FF6A2B;
  --amber:#FFB347;
  --teal:#0E7C6B;
  --ice:#E9F2FA;
  --mist:#8FA8BF;
  --reef:#1B3A5C;
  --alert:#FF4D5E;

  --shell:1320px;
  --gutter:24px;
  --rail:340px;
  --blur:18px;
  --radius:14px;
  --section-gap:88px;
  --header-h:104px;

  --font-display:"Oswald","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html,body{min-height:100%}
body{
  margin:0;
  background:var(--deep);
  color:var(--ice);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--reef);margin:0}
[id]{scroll-margin-top:100px}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(880px 520px at 10% -8%,rgba(56,240,208,.10),transparent 64%),
    radial-gradient(760px 460px at 92% 2%,rgba(255,106,43,.10),transparent 62%),
    radial-gradient(1200px 700px at 50% 112%,rgba(14,124,107,.14),transparent 70%);
}
main{position:relative;z-index:1}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 3. 容器与章节 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:var(--section-gap);position:relative}
.section--tight{padding-block:48px}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  padding-bottom:18px;
  margin-bottom:32px;
  border-bottom:1px solid var(--reef);
}
.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(26px,3vw,34px);
  line-height:1.2;
  letter-spacing:-.01em;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}

/* ---------- 4. 刻度假语言 ---------- */
.tick-rule{
  height:12px;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,var(--reef) 0 1px,transparent 1px 18px),
    repeating-linear-gradient(90deg,rgba(27,58,92,.55) 0 1px,transparent 1px 6px);
  background-size:100% 12px,100% 6px;
  background-repeat:repeat-x;
  opacity:.9;
}
.tick-rule--bright{
  height:14px;
  opacity:1;
  border-top:1px solid rgba(56,240,208,.45);
  background-image:
    repeating-linear-gradient(90deg,rgba(56,240,208,.85) 0 1px,transparent 1px 22px),
    repeating-linear-gradient(90deg,rgba(56,240,208,.28) 0 1px,transparent 1px 8px);
  background-size:100% 14px,100% 7px;
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  top:0;
  left:-9999px;
  z-index:200;
  padding:10px 20px;
  background:var(--cyan);
  color:#04202B;
  font-weight:700;
  letter-spacing:.08em;
  border-radius:0 0 10px 0;
}
.skip-link:focus{left:0}

/* ---------- 6. 头部外壳 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  width:100%;
}

/* 6.1 上层品牌说明条 */
.brandbar{
  position:relative;
  height:40px;
  overflow:hidden;
  border-bottom:1px solid var(--reef);
  background:linear-gradient(90deg,rgba(16,54,92,.92),rgba(12,39,69,.72) 55%,rgba(6,26,47,.86));
  backdrop-filter:blur(var(--blur));
  -webkit-backdrop-filter:blur(var(--blur));
  transition:height .32s ease,opacity .32s ease;
}
.site-header.is-scrolled .brandbar{height:0;opacity:0;border-bottom-color:transparent}
.brandbar__inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:40px;
}
.brand-mark{display:inline-flex;align-items:baseline;gap:9px;flex:none}
.brand-mark__cn{
  font-family:var(--font-display);
  font-weight:900;
  font-size:15px;
  letter-spacing:.06em;
  color:var(--ice);
}
.brand-mark__en{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.brand-tag{
  font-size:12px;
  letter-spacing:.12em;
  color:var(--mist);
  padding-left:18px;
  border-left:1px solid var(--reef);
  white-space:nowrap;
}
.brandbar__meta{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:16px;
}
.cert-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:3px 10px;
  border:1px solid rgba(255,179,71,.45);
  border-radius:999px;
  background:rgba(255,179,71,.08);
  color:var(--amber);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.12em;
  text-transform:uppercase;
  white-space:nowrap;
}
.cert-badge__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 3px rgba(255,179,71,.16);
}
.ghost-link{
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--mist);
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.ghost-link:hover,.ghost-link:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan)}

/* 6.2 下层主栏目条 */
.navbar{
  position:relative;
  background:rgba(6,26,47,.96);
  backdrop-filter:blur(var(--blur));
  -webkit-backdrop-filter:blur(var(--blur));
  border-bottom:1px solid var(--reef);
}
.navbar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.navbar__brand{display:none}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  min-width:0;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:20px 14px;
  font-size:14.5px;
  letter-spacing:.06em;
  color:var(--mist);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:13px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease-out;
}
.nav-link:hover{color:var(--ice)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--ice)}
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
  box-shadow:0 0 12px rgba(56,240,208,.7);
}
.nav-cta{margin-left:auto}
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border:1px solid var(--reef);
  border-radius:10px;
  color:var(--ice);
  font-size:13px;
  letter-spacing:.12em;
}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:18px;height:2px;
  background:var(--cyan);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--cyan);
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}
.nav-drawer__meta{display:none}

/* 6.3 滚动进度 */
.scroll-progress{
  position:absolute;
  left:0;bottom:-1px;
  width:100%;height:2px;
  transform:scaleX(var(--progress,0));
  transform-origin:left center;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:transform .1s linear;
}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  letter-spacing:.1em;
  white-space:nowrap;
  transition:transform .18s ease-out,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--orange),#FF9346);
  color:#1A0A02;
  box-shadow:0 8px 22px rgba(255,106,43,.28);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,43,.38)}
.btn--ghost{
  background:var(--glass);
  border-color:var(--reef);
  color:var(--ice);
  backdrop-filter:blur(var(--blur));
  -webkit-backdrop-filter:blur(var(--blur));
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--quiet{
  background:transparent;
  border-color:var(--reef);
  color:var(--mist);
  font-size:12.5px;
  letter-spacing:.08em;
  padding:8px 14px;
}
.btn--quiet:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:96px;
  background:var(--midnight);
  border-top:1px solid var(--reef);
}
.footer__grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-block:64px 48px;
}
.footer__col--brand{min-width:0}
.footer__brand{
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  letter-spacing:.06em;
  color:var(--ice);
}
.footer__tag{
  margin-top:6px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--mist);
}
.footer__icp{
  margin-top:18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
}
.footer__title{
  margin-bottom:16px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--cyan);
}
.footer__list li + li{margin-top:10px}
.footer__list a{
  display:inline-block;
  font-size:13.5px;
  color:var(--mist);
  transition:color .2s ease,padding-left .2s ease;
}
.footer__list a:hover,.footer__list a:focus-visible{color:var(--cyan);padding-left:4px}
.footer__list--contact li{
  font-size:13.5px;
  color:var(--mist);
  line-height:1.6;
}
.footer__strong{
  font-family:var(--font-mono);
  color:var(--ice);
  letter-spacing:.02em;
}
.footer__note{
  margin-top:16px;
  padding-left:12px;
  border-left:2px solid var(--reef);
  font-size:12px;
  line-height:1.7;
  color:rgba(143,168,191,.88);
}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-block:20px 30px;
  border-top:1px solid var(--reef);
  font-size:12.5px;
  color:var(--mist);
}
.footer__legal{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.footer__legal a{transition:color .2s ease}
.footer__legal a:hover,.footer__legal a:focus-visible{color:var(--cyan)}
.footer__version{
  padding:2px 9px;
  border:1px solid rgba(255,179,71,.4);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--amber);
}
.backtop{
  position:fixed;
  right:22px;bottom:22px;
  z-index:70;
  display:grid;
  place-items:center;
  width:46px;height:46px;
  border:1px solid var(--reef);
  border-radius:50%;
  background:var(--glass);
  backdrop-filter:blur(var(--blur));
  -webkit-backdrop-filter:blur(var(--blur));
  color:var(--cyan);
  font-size:17px;
  opacity:0;
  pointer-events:none;
  transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,border-color .2s ease;
}
.backtop.is-visible{opacity:1;pointer-events:auto;transform:none}
.backtop:hover{border-color:var(--cyan)}

/* ---------- 9. 通用内容组件 ---------- */
.prose{
  max-width:68ch;
  font-size:16.5px;
  line-height:1.75;
  color:var(--ice);
}
.prose p + p{margin-top:1em}
.prose h2,.prose h3{margin-top:1.6em;font-family:var(--font-display);font-weight:800;line-height:1.3}
.prose h2{font-size:26px}
.prose h3{font-size:20px}
.prose ul,.prose ol{margin-top:1em;padding-left:1.2em;list-style:disc}
.prose li + li{margin-top:.4em}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(56,240,208,.35)}
.prose a:hover{border-bottom-color:var(--cyan)}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:16px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--mist);
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--cyan)}
.breadcrumb [aria-hidden="true"]{color:var(--reef)}

.layout-split{
  display:grid;
  grid-template-columns:minmax(280px,var(--rail)) minmax(0,1fr);
  gap:var(--gutter);
  align-items:start;
}
.rail{position:sticky;top:88px;min-width:0}
.stream{min-width:0}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gutter);
}

.glass-panel{
  position:relative;
  padding:22px;
  border:1px solid var(--reef);
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:blur(var(--blur));
  -webkit-backdrop-filter:blur(var(--blur));
}
.frame{
  position:relative;
  padding:24px;
  border:1px solid var(--reef);
  border-radius:var(--radius);
  background:rgba(12,39,69,.55);
}
.frame::before,
.frame::after{
  content:"";
  position:absolute;
  width:14px;height:14px;
  border:2px solid var(--cyan);
  pointer-events:none;
}
.frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0;border-radius:var(--radius) 0 0 0}
.frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0;border-radius:0 0 var(--radius) 0}

.card{
  position:relative;
  padding:20px;
  border:1px solid var(--reef);
  border-radius:var(--radius);
  background:var(--midnight);
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:rgba(56,240,208,.5)}
.card__title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  line-height:1.35;
  color:var(--ice);
}
.card__meta{
  margin-top:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
}

.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border:1px solid var(--reef);
  border-radius:999px;
  background:rgba(16,54,92,.6);
  color:var(--mist);
  font-size:12.5px;
  letter-spacing:.06em;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{border-color:var(--cyan);color:var(--cyan)}
.chip[aria-pressed="true"],.chip.is-active{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#04202B;
}
.chip--amber{
  border-color:rgba(255,179,71,.5);
  background:rgba(255,179,71,.08);
  color:var(--amber);
}

.filterbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.filter-btn{
  padding:8px 16px;
  border:1px solid var(--reef);
  border-radius:999px;
  background:rgba(12,39,69,.7);
  color:var(--mist);
  font-family:var(--font-display);
  font-weight:800;
  font-size:13px;
  letter-spacing:.1em;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.filter-btn:hover{color:var(--ice);border-color:rgba(56,240,208,.5)}
.filter-btn[aria-pressed="true"]{
  border-color:var(--cyan);
  color:var(--cyan);
  background:linear-gradient(135deg,rgba(56,240,208,.16),rgba(56,240,208,.03));
  box-shadow:inset 0 0 0 1px rgba(56,240,208,.2);
}

.data-strip{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:1px;
  border:1px solid var(--reef);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--reef);
}
.data-strip__cell{padding:20px;background:var(--midnight)}
.data-strip__label{font-size:12px;letter-spacing:.12em;color:var(--mist)}
.data-strip__value{
  margin-top:6px;
  font-family:var(--font-mono);
  font-size:26px;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}

.data-table{font-size:14px}
.data-table th{
  padding:10px 12px;
  border-bottom:1px solid var(--reef);
  text-align:left;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--mist);
}
.data-table td{
  padding:12px;
  border-bottom:1px solid rgba(27,58,92,.7);
  font-variant-numeric:tabular-nums;
}
.data-table tr:hover td{background:rgba(16,54,92,.35)}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.num--score{
  font-size:clamp(64px,10vw,120px);
  font-weight:700;
  line-height:.9;
  color:var(--ice);
}
.num--score.is-accent{color:var(--orange)}

.status-dot{
  display:inline-block;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--cyan);
  flex:none;
}
.status-dot--live{
  background:var(--alert);
  box-shadow:0 0 0 4px rgba(255,77,94,.18);
}

.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--reef);
  border-radius:var(--radius);
  background:
    radial-gradient(120% 120% at 12% 8%,rgba(56,240,208,.16),transparent 58%),
    radial-gradient(110% 110% at 88% 92%,rgba(255,106,43,.16),transparent 60%),
    linear-gradient(160deg,var(--midnight),var(--deep));
}
.media-frame img{
  width:100%;height:100%;
  object-fit:cover;
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame__cap{
  position:absolute;
  left:12px;bottom:12px;
  padding:3px 10px;
  border:1px solid var(--reef);
  border-radius:999px;
  background:rgba(6,26,47,.74);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
}

[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease-out,transform .5s ease-out;
}
[data-reveal].is-visible{opacity:1;transform:none}

.text-mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.text-muted{color:var(--mist)}
.text-accent{color:var(--cyan)}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1100px){
  .brand-tag{display:none}
  .footer__grid{grid-template-columns:1.3fr 1fr 1fr;row-gap:40px}
}

@media (max-width:900px){
  :root{--gutter:20px;--section-gap:64px}
  .brandbar{display:none}
  .site-header.is-scrolled .brandbar{height:0}
  .navbar__inner{height:60px;gap:12px}
  .navbar__brand{display:inline-flex}
  .nav-toggle{display:inline-flex}
  .nav-list{
    position:fixed;
    top:60px;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    max-height:calc(100vh - 60px);
    overflow-y:auto;
    padding:10px var(--gutter) 24px;
    background:rgba(6,26,47,.98);
    backdrop-filter:blur(var(--blur));
    -webkit-backdrop-filter:blur(var(--blur));
    border-bottom:1px solid var(--reef);
    box-shadow:0 24px 48px rgba(2,10,20,.6);
  }
  .nav-list[data-open]{display:flex}
  .nav-link{
    padding:16px 4px;
    font-size:16px;
    border-bottom:1px solid rgba(27,58,92,.7);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--cyan)}
  .nav-drawer__meta{
    display:flex;
    padding-top:18px;
  }
  .layout-split{grid-template-columns:minmax(0,1fr)}
  .rail{position:static;top:auto}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding-block:48px 36px}
  .footer__bottom{padding-block:18px 26px}
}

@media (max-width:600px){
  body{font-size:16px}
  .grid-12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr}
  .cta-row,.filterbar{gap:8px}
  .btn{padding:10px 16px;font-size:13px}
  .num--score{font-size:clamp(52px,16vw,84px)}
  .backtop{right:14px;bottom:14px}
}

/* ---------- 11. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .backtop{transform:none}
}