/* =========================================================
   亚洲版体育中心 · /assets/site.css
   共享骨架：reset / 变量 / 中文排版 / 头尾 / 基础组件
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; }

:root{
  --ink:#061A1C;
  --panel:#0C2B2A;
  --panel-2:#103D3A;
  --live:#17E0B0;
  --live-soft:#7CFFD8;
  --season:#F0A83C;
  --season-soft:#FFD9A0;
  --text:#EAF3F1;
  --muted:#8FA6A3;
  --edge:#1F4F4B;

  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Roboto Mono",monospace;

  --radius:2px;
  --frame-inset:clamp(12px, 2.6vw, 34px);
  --wrap:min(1180px, calc(100% - 2 * clamp(16px, 4vw, 54px)));
}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 560px at 82% -12%, rgba(23,224,176,.08), transparent 62%),
    radial-gradient(840px 480px at 4% 4%, rgba(240,168,60,.055), transparent 58%),
    repeating-linear-gradient(0deg, rgba(234,243,241,.016) 0 1px, transparent 1px 3px);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}

/* 页面四缘的框架细线（仅宽屏） */
@media (min-width:1100px){
  body::before,
  body::after{
    content:"";
    position:fixed;
    top:0;
    bottom:0;
    width:1px;
    background:linear-gradient(180deg,
      rgba(31,79,75,0) 0%,
      rgba(31,79,75,.9) 10%,
      rgba(31,79,75,.9) 90%,
      rgba(31,79,75,0) 100%);
    pointer-events:none;
    z-index:1;
  }
  body::before{ left:var(--frame-inset); }
  body::after{ right:var(--frame-inset); }
}

h1, h2, h3, h4{
  margin:0 0 .55em;
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.015em;
}
h1{ font-size:clamp(2rem, 5.4vw, 3.4rem); }
h2{ font-size:clamp(1.55rem, 3.5vw, 2.4rem); }
h3{ font-size:clamp(1.1rem, 2.1vw, 1.45rem); }
h4{ font-size:1.02rem; letter-spacing:.01em; }

p{ margin:0 0 1em; }
ul, ol{ margin:0 0 1em; padding-left:1.25em; }
img{ max-width:100%; }
a{
  color:var(--live-soft);
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
a:hover{ color:#fff; }
hr{ border:0; }

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

/* ---------- 容器 ---------- */
.wrap{
  width:var(--wrap);
  margin-inline:auto;
}

.section{
  position:relative;
  padding-block:clamp(46px, 8vw, 96px);
}
.section--tight{ padding-block:clamp(30px, 5vw, 56px); }
.section--band{
  background:linear-gradient(180deg, rgba(12,43,42,.92), rgba(12,43,42,.62));
  border-block:1px solid var(--edge);
}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:clamp(20px, 3.6vw, 34px);
  padding-bottom:14px;
  border-bottom:1px solid var(--edge);
}
.section__title{ margin:0; }
.section__lead{
  margin:.5em 0 0;
  color:var(--muted);
  font-size:15.5px;
  max-width:44ch;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.65em;
  margin-bottom:.9em;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--season);
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:currentColor;
}

.prose{ max-width:46ch; }
.prose p{ color:#D9E6E3; }

/* ---------- 基础组件 ---------- */
.card,
.panel{
  background:var(--panel);
  border:1px solid var(--edge);
  border-radius:var(--radius);
  padding:clamp(16px, 2.3vw, 26px);
  box-shadow:0 6px 18px rgba(0,0,0,.28);
}
.card--live{ border-color:rgba(23,224,176,.42); }
.card--season{ border-color:rgba(240,168,60,.38); }

.rule{
  border:0;
  border-top:1px solid var(--edge);
  margin-block:clamp(22px, 4vw, 42px);
}

.num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

.note{
  font-size:12.5px;
  line-height:1.65;
  color:var(--muted);
  letter-spacing:.02em;
}
.note--vertical{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  letter-spacing:.16em;
  color:var(--season-soft);
}

.stat{ display:flex; flex-direction:column; gap:4px; }
.stat__value{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(2rem, 6vw, 3.4rem);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--live);
}
.stat__label{
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--muted);
}
.stat--season .stat__value{ color:var(--season); }

.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 9px;
  border:1px solid var(--edge);
  border-radius:999px;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--muted);
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:6px 13px;
  border:1px solid var(--edge);
  border-radius:999px;
  background:transparent;
  color:var(--muted);
  font:inherit;
  font-size:13px;
  cursor:pointer;
  transition:color .18s ease, border-color .18s ease, background-color .18s ease;
}
.chip:hover{ color:var(--text); border-color:var(--live); }
.chip[aria-pressed="true"]{
  background:var(--live);
  border-color:var(--live);
  color:var(--ink);
  font-weight:600;
}

.list-plain{
  list-style:none;
  margin:0;
  padding:0;
}

.grid{
  display:grid;
  gap:clamp(16px, 2.6vw, 28px);
}
.grid--2,
.grid--3{ grid-template-columns:1fr; }
@media (min-width:760px){
  .grid--2{ grid-template-columns:repeat(2, minmax(0,1fr)); }
  .grid--3{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (min-width:1040px){
  .grid--3{ grid-template-columns:repeat(3, minmax(0,1fr)); }
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding-top:18px;
  font-size:13px;
  color:var(--muted);
}
.breadcrumb ol{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:.5em;
  margin:0;
  padding:0;
}
.breadcrumb li{ display:inline-flex; align-items:center; gap:.5em; }
.breadcrumb li::after{
  content:"/";
  color:var(--edge);
}
.breadcrumb li:last-child::after{ content:""; }
.breadcrumb a{
  color:var(--muted);
  text-decoration:none;
}
.breadcrumb a:hover{ color:var(--live-soft); }
.breadcrumb [aria-current="page"]{ color:var(--text); }

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  background:var(--panel-2);
  overflow:hidden;
}
.media-frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame__caption{
  margin:9px 0 0;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--muted);
}
.img-ph{
  display:block;
  position:relative;
  width:100%;
  aspect-ratio:16 / 9;
  background-color:var(--panel-2);
  background-image:
    linear-gradient(135deg, rgba(16,61,58,.92), rgba(6,26,28,.96)),
    repeating-linear-gradient(90deg, rgba(31,79,75,.55) 0 1px, transparent 1px 26px);
}
.img-ph--wide{ aspect-ratio:21 / 9; }
.img-ph--tall{ aspect-ratio:3 / 4; }
.img-ph::after{
  content:attr(data-label);
  position:absolute;
  left:12px;
  bottom:10px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  background:var(--panel-2);
  color:var(--text);
  font-size:13.5px;
  letter-spacing:.05em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover{ border-color:var(--live); color:#fff; }
.btn--live{
  background:rgba(23,224,176,.12);
  border-color:rgba(23,224,176,.55);
  color:var(--live-soft);
}
.btn--live:hover{ background:rgba(23,224,176,.22); }
.btn--ghost{ background:transparent; }
.btn--season{
  background:rgba(240,168,60,.1);
  border-color:rgba(240,168,60,.5);
  color:var(--season-soft);
}
.btn--season:hover{ background:rgba(240,168,60,.2); }

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:120;
  padding:10px 18px;
  background:var(--live);
  color:var(--ink);
  font-weight:600;
  text-decoration:none;
}
.skip-link:focus{
  left:14px;
  top:10px;
}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(6,26,28,.93);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{
  box-shadow:0 12px 30px rgba(0,0,0,.42);
}

.site-header__frame{
  border-bottom:1px solid var(--edge);
  padding-inline:0;
}

.site-header__bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:62px;
  padding-block:8px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  text-decoration:none;
  min-width:0;
}
.brand:hover{ color:var(--text); }
.brand__mark{
  position:relative;
  flex:0 0 auto;
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  border:1px solid var(--live);
  border-radius:50%;
  font-family:var(--mono);
  font-size:13px;
  color:var(--live);
  letter-spacing:0;
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:4px;
  border:1px dashed rgba(23,224,176,.45);
  border-radius:50%;
}
.brand__text{
  display:flex;
  flex-direction:column;
  min-width:0;
}
.brand__name{
  font-size:17px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.25;
  white-space:nowrap;
}
.brand__tagline{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--season);
  line-height:1.4;
  white-space:nowrap;
}

.site-header__actions{
  display:flex;
  align-items:center;
  gap:10px;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 13px;
  border:1px solid var(--edge);
  border-radius:var(--radius);
  background:transparent;
  color:var(--text);
  font:inherit;
  font-size:13px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .18s ease, color .18s ease;
}
.nav-toggle:hover{ border-color:var(--live); color:var(--live-soft); }
.nav-toggle__bars{
  position:relative;
  display:inline-block;
  width:16px;
  height:10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1px;
  background:var(--live);
  transition:transform .2s ease, top .2s ease, bottom .2s ease;
}
.nav-toggle__bars::before{ top:1px; }
.nav-toggle__bars::after{ bottom:1px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{
  top:5px;
  transform:rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{
  bottom:4px;
  transform:rotate(-45deg);
}

.site-nav{
  border-top:1px solid rgba(31,79,75,.5);
}
.site-nav__list{
  display:flex;
  align-items:stretch;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
  overflow-x:auto;
  scrollbar-width:thin;
  scrollbar-color:var(--edge) transparent;
}
.site-nav__list::-webkit-scrollbar{ height:4px; }
.site-nav__list::-webkit-scrollbar-thumb{ background:var(--edge); }
.site-nav__item{ flex:0 0 auto; }

.site-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:12px 15px;
  border-bottom:2px solid transparent;
  color:var(--muted);
  font-size:14.5px;
  letter-spacing:.04em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s ease, background-color .18s ease, border-color .18s ease;
}
.site-nav__link:hover{
  color:var(--text);
  background:rgba(16,61,58,.6);
}
.site-nav__link[aria-current="page"]{
  color:var(--live);
  border-bottom-color:var(--live);
  background:rgba(23,224,176,.06);
}
.site-nav__index{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.08em;
  color:var(--season);
}
.site-nav__link[aria-current="page"] .site-nav__index{ color:var(--live-soft); }

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:rgba(31,79,75,.7);
  overflow:hidden;
}
.scroll-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg, var(--live) 0%, var(--live-soft) 46%, var(--season) 100%);
  transition:width .14s linear;
}

@media (max-width:899px){
  .site-nav{ display:none; }
  .site-nav[data-open="true"]{
    display:block;
    background:rgba(12,43,42,.96);
  }
  .site-nav[data-open="true"] .site-nav__list{
    flex-direction:column;
    overflow:visible;
    padding-block:6px 14px;
  }
  .site-nav[data-open="true"] .site-nav__link{
    display:flex;
    padding:13px 4px;
    border-bottom:1px solid rgba(31,79,75,.45);
  }
  .site-nav[data-open="true"] .site-nav__link[aria-current="page"]{
    border-bottom-color:var(--live);
  }
  .nav-toggle{ display:inline-flex; }
}

@media (min-width:900px){
  .site-nav{ display:block; }
  .site-nav__link{ padding-inline:17px; }
}

@media (max-width:520px){
  .brand__tagline{ display:none; }
  .site-header__actions .btn--live{ padding:9px 12px; font-size:12.5px; }
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px, 9vw, 112px);
  border-top:1px solid var(--edge);
  background:linear-gradient(180deg, rgba(12,43,42,.94), rgba(6,26,28,1));
  color:var(--muted);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,
    var(--live) 0 24%,
    var(--season) 24% 40%,
    var(--edge) 40% 100%);
  opacity:.72;
}

.site-footer__inner{
  padding:clamp(34px, 5.4vw, 62px) 0 26px;
}

.site-footer__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px, 4vw, 46px);
}
@media (min-width:640px){
  .site-footer__grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
}
@media (min-width:1000px){
  .site-footer__grid{ grid-template-columns:1.5fr 1fr 1.35fr 1fr; }
}

.footer-col{ min-width:0; }
.footer-col__title{
  margin:0 0 14px;
  padding-bottom:8px;
  border-bottom:1px solid rgba(31,79,75,.7);
  font-family:var(--mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--season);
}

.footer-brand{
  margin:0 0 8px;
  font-size:24px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
}
.footer-tagline{
  margin:0 0 14px;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--live);
}
.footer-note{
  margin:0;
  max-width:34ch;
  font-size:13px;
  line-height:1.8;
  color:var(--muted);
}

.footer-nav{
  list-style:none;
  margin:0;
  padding:0;
}
.footer-nav a{
  display:block;
  padding:7px 0;
  border-bottom:1px dashed rgba(31,79,75,.55);
  color:var(--muted);
  font-size:14px;
  text-decoration:none;
  transition:color .18s ease;
}
.footer-nav a::before{
  content:"›";
  display:inline-block;
  width:0;
  overflow:hidden;
  color:var(--live);
  transition:width .18s ease;
}
.footer-nav a:hover{ color:var(--live-soft); }
.footer-nav a:hover::before{ width:14px; }

.footer-contact__item{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:9px 0;
  border-bottom:1px dashed rgba(31,79,75,.55);
}
.footer-contact__label{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--season);
}
.footer-contact__value{
  font-size:13.5px;
  line-height:1.7;
  color:#C9DAD7;
  word-break:break-word;
}

.footer-meta__row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding:9px 0;
  border-bottom:1px dashed rgba(31,79,75,.55);
  font-size:13.5px;
}
.footer-meta__key{ color:var(--muted); }
.footer-meta__value{ color:var(--live-soft); }

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  gap:8px 26px;
  justify-content:space-between;
  margin-top:clamp(28px, 4vw, 44px);
  padding-top:18px;
  border-top:1px solid var(--edge);
}
.footer-legal__line{
  margin:0;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.06em;
  line-height:1.9;
  color:var(--muted);
}
.footer-legal__line .num{ color:var(--season-soft); }

/* ---------- 显现 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .42s ease, transform .42s ease;
}
.js [data-reveal].is-revealed{
  opacity:1;
  transform:none;
}

/* ---------- 锚点偏移 ---------- */
#main-content{ scroll-margin-top:120px; }

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