/* ===== 33体育主站 · 共享样式 /assets/site.css ===== */

/* ---------- reset ---------- */
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
img,svg{max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:var(--cyan-400)}
[id]{scroll-margin-top:104px}

/* ---------- tokens ---------- */
:root{
  --ink-900:#070B1A;
  --ink-700:#0E1631;
  --ink-600:#1C2233;
  --cyan-400:#2BF0D8;
  --cyan-700:#12A99A;
  --orange-500:#FF5A2E;
  --amber-400:#FFC24B;
  --paper-100:#F4F7FB;
  --mist-400:#9AA4B8;
  --line-blue:#26304A;
  --shell:1180px;
  --radius-card:14px;
  --radius-pill:999px;
  --ease:cubic-bezier(.22,.8,.28,1);
  --font-sans:"Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular","Cascadia Mono",Consolas,"Liberation Mono",monospace;
}

/* ---------- base ---------- */
body{
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 10% -8%, rgba(43,240,216,.10), transparent 62%),
    radial-gradient(760px 460px at 98% 2%, rgba(255,90,46,.09), transparent 60%);
  background-repeat:no-repeat;
  color:var(--paper-100);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:900;line-height:1.14;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(30px,5.6vw,58px)}
h2{font-size:clamp(26px,4.4vw,46px)}
h3{font-size:clamp(19px,2.4vw,24px);font-weight:800}
::selection{background:var(--cyan-400);color:#04131a}
:focus-visible{outline:2px solid var(--cyan-400);outline-offset:3px;border-radius:6px}

.num-mono,.stat-number,.section-number,.data-cell-value,.contact-value--mono,.footer-legal-line,.nav-utility-label,.footer-col-title,.section-kicker,.card-meta{
  font-family:var(--font-mono);
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:140;
  display:inline-block;padding:10px 18px;border-radius:var(--radius-pill);
  background:var(--cyan-400);color:#04131a;font-size:14px;font-weight:700;text-decoration:none;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(10,15,34,.97),rgba(7,11,26,.93));
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-condensed{
  border-bottom-color:var(--line-blue);
  background:linear-gradient(180deg,rgba(9,14,32,.99),rgba(7,11,26,.96));
  box-shadow:0 16px 38px -22px rgba(3,6,16,.95);
}
.header-inner{
  width:min(100% - 32px,var(--shell));
  margin-inline:auto;
  display:flex;align-items:center;gap:18px;
  padding:12px 0;
  transition:padding .3s var(--ease);
}
.site-header.is-condensed .header-inner{padding:7px 0}

.brand,.footer-brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  color:var(--paper-100);text-decoration:none;
}
.brand-mark{
  font-family:var(--font-mono);font-size:17px;font-weight:700;line-height:1;letter-spacing:-.02em;
  padding:7px 9px;border-radius:10px;color:#04131a;
  background:linear-gradient(135deg,var(--cyan-400),var(--cyan-700));
  box-shadow:0 0 0 1px rgba(43,240,216,.35),0 8px 20px -12px rgba(43,240,216,.9);
}
.brand-text{display:inline-flex;flex-direction:column;gap:1px}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:.02em;line-height:1.2}
.brand-sub{
  font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--mist-400);line-height:1.2;
}

.nav-capsule{
  margin-left:auto;
  display:flex;align-items:center;gap:4px;
  padding:5px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  background:rgba(14,22,49,.6);
  backdrop-filter:blur(10px);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.site-header.is-condensed .nav-capsule{
  border-color:var(--line-blue);
  background:rgba(14,22,49,.86);
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{display:block}
.nav-link{
  display:inline-block;padding:8px 14px;border-radius:var(--radius-pill);
  color:var(--mist-400);font-size:14.5px;font-weight:600;line-height:1.2;
  text-decoration:none;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-link:hover{color:var(--paper-100);background:rgba(244,247,251,.07)}
.nav-link[aria-current="page"]{
  color:var(--cyan-400);
  background:rgba(43,240,216,.10);
  box-shadow:inset 0 0 0 1px rgba(43,240,216,.35);
}
.nav-utility{display:none}

.header-cta{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,90,46,.55);
  background:rgba(255,90,46,.10);
  color:var(--paper-100);font-size:14px;font-weight:700;letter-spacing:.02em;
  text-decoration:none;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.header-cta::after{content:"→";font-family:var(--font-mono);font-size:13px;transition:transform .25s var(--ease)}
.header-cta:hover{
  background:var(--orange-500);border-color:var(--orange-500);color:#0A0F1E;
  box-shadow:0 12px 28px -14px rgba(255,90,46,.95);
}
.header-cta:hover::after{transform:translateX(3px)}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;margin-left:auto;
  border:1px solid var(--line-blue);border-radius:14px;
  background:rgba(14,22,49,.85);cursor:pointer;position:relative;z-index:95;
}
.nav-toggle-bar{display:block;height:2px;width:100%;border-radius:2px;background:var(--paper-100);transition:transform .28s var(--ease),opacity .2s var(--ease)}

.nav-backdrop{display:none}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  overflow:hidden;pointer-events:none;
}
.scroll-progress-bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan-400),var(--amber-400) 58%,var(--orange-500));
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line-blue);
  background:linear-gradient(180deg,var(--ink-700),var(--ink-900) 82%);
}
.footer-inner{width:min(100% - 32px,var(--shell));margin-inline:auto;padding:64px 0 30px}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr) minmax(0,1.3fr);
  gap:44px 40px;
}
.footer-brand{margin-bottom:16px}
.footer-lede-text{font-size:17px;font-weight:600;line-height:1.65;max-width:30ch;color:var(--paper-100)}
.footer-note{margin-top:14px;font-size:13.5px;line-height:1.7;color:var(--mist-400);max-width:42ch}
.footer-col-title{
  font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--mist-400);margin-bottom:16px;
}
.footer-nav-list{display:grid;gap:10px}
.footer-nav-link{
  display:inline-block;color:var(--paper-100);font-size:15px;text-decoration:none;
  padding-left:14px;position:relative;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-nav-link::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:1px;background:var(--cyan-700);
  transition:width .2s var(--ease),background .2s var(--ease);
}
.footer-nav-link:hover{color:var(--cyan-400);transform:translateX(2px)}
.footer-nav-link:hover::before{width:10px;background:var(--cyan-400)}

.footer-contact-list{display:grid;gap:14px}
.footer-contact-item{display:grid;gap:2px}
.contact-label{
  font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mist-400);
}
.contact-value{font-size:15.5px;color:var(--paper-100);display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap}
.contact-value--mono{letter-spacing:-.01em}
.copy-chip{
  padding:3px 10px;border-radius:var(--radius-pill);
  border:1px solid rgba(43,240,216,.35);
  color:var(--cyan-400);font-size:11.5px;font-weight:700;letter-spacing:.06em;
  cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease);
}
.copy-chip:hover{background:rgba(43,240,216,.14)}
.copy-chip.is-copied{background:var(--cyan-400);border-color:var(--cyan-400);color:#04131a}

.footer-legal{
  grid-column:1 / -1;
  margin-top:8px;padding-top:20px;border-top:1px solid var(--line-blue);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:var(--mist-400);
}
.footer-legal-line{letter-spacing:.02em}

/* ---------- layout helpers ---------- */
.container{width:min(100% - 32px,var(--shell));margin-inline:auto}
.container-narrow{width:min(100% - 32px,820px);margin-inline:auto}
.section{padding:88px 0}
.section-head{max-width:62ch;margin-bottom:44px}
.section-kicker{
  display:block;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan-400);margin-bottom:10px;
}
.section-number{
  display:block;font-size:clamp(46px,9vw,92px);font-weight:700;line-height:.86;
  letter-spacing:-.04em;color:transparent;
  -webkit-text-stroke:1px rgba(43,240,216,.55);
}
.section-title{margin:.18em 0 .3em}
.grid-editorial{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,3fr);
  gap:48px;align-items:start;
}
.note-rail{
  position:sticky;top:96px;display:grid;gap:18px;
  font-size:14.5px;color:var(--mist-400);
  padding-left:20px;border-left:1px solid var(--line-blue);
}
.grid-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}

/* ---------- labels ---------- */
.label-tag,.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-pill);
  border:1px solid rgba(43,240,216,.35);
  color:var(--cyan-400);font-size:11.5px;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;
  font-family:var(--font-mono);
}

/* ---------- cards ---------- */
.card{
  position:relative;padding:24px;border-radius:var(--radius-card);
  border:1px solid var(--line-blue);
  background:linear-gradient(180deg,rgba(14,22,49,.94),rgba(10,16,36,.94));
  box-shadow:0 1px 0 rgba(244,247,251,.03),0 24px 44px -34px rgba(0,0,0,.95);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(43,240,216,.42);
  box-shadow:0 1px 0 rgba(244,247,251,.04),0 28px 52px -30px rgba(0,0,0,1);
}
.card-tag{
  display:inline-block;margin-bottom:12px;font-family:var(--font-mono);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-400);
}
.card-title{font-size:19px;font-weight:800;line-height:1.4;margin-bottom:8px}
.card-body{font-size:15px;color:var(--mist-400)}
.card-meta{display:block;margin-top:16px;font-size:12px;color:var(--mist-400);letter-spacing:.06em}

/* ---------- stats & data ---------- */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:20px}
.stat{display:grid;gap:6px;padding-top:16px;border-top:1px solid var(--line-blue)}
.stat-number{
  font-size:clamp(30px,5vw,46px);font-weight:700;line-height:1;letter-spacing:-.03em;
  color:var(--cyan-400);
}
.stat-number--accent{color:var(--orange-500)}
.stat-unit{font-family:var(--font-sans);font-size:14px;color:var(--mist-400);margin-left:6px}
.stat-label{font-size:14px;color:var(--mist-400)}

.data-strip{
  border-top:1px solid var(--line-blue);border-bottom:1px solid var(--line-blue);
  background:rgba(14,22,49,.55);overflow:hidden;
}
.data-strip-track{
  display:flex;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:thin;
}
.data-strip-track::-webkit-scrollbar{height:6px}
.data-strip-track::-webkit-scrollbar-thumb{background:var(--line-blue);border-radius:3px}
.data-cell{
  flex:0 0 auto;min-width:190px;padding:20px 24px;
  border-right:1px solid var(--line-blue);scroll-snap-align:start;
}
.data-cell-value{display:block;font-size:22px;font-weight:700;color:var(--paper-100);letter-spacing:-.02em}
.data-cell-label{display:block;margin-top:4px;font-size:12.5px;color:var(--mist-400);letter-spacing:.06em}

.table-wrap{
  overflow-x:auto;border:1px solid var(--line-blue);border-radius:var(--radius-card);
  background:rgba(14,22,49,.55);
}
.data-table{width:100%;min-width:520px;border-collapse:collapse;font-size:14.5px}
.data-table th,.data-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-blue)}
.data-table thead th{
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--mist-400);
  background:rgba(28,34,51,.6);
}
.data-table tbody tr:nth-child(even){background:rgba(28,34,51,.35)}
.data-table td.is-num{font-family:var(--font-mono);color:var(--cyan-400)}
.data-table tbody tr:last-child td{border-bottom:0}

/* ---------- buttons & chips ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-size:15px;font-weight:700;
  text-decoration:none;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange-500);color:#0A0F1E;box-shadow:0 16px 32px -20px rgba(255,90,46,1)}
.btn-primary:hover{background:#FF7043}
.btn-ghost{border-color:rgba(43,240,216,.45);color:var(--cyan-400);background:rgba(43,240,216,.07)}
.btn-ghost:hover{background:var(--cyan-400);color:#04131a;border-color:var(--cyan-400)}

.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:8px 15px;border-radius:var(--radius-pill);
  border:1px solid var(--line-blue);background:rgba(28,34,51,.6);
  color:var(--paper-100);font-size:14px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{border-color:rgba(43,240,216,.45);color:var(--cyan-400)}
.chip[aria-pressed="true"]{background:var(--cyan-400);border-color:var(--cyan-400);color:#04131a}

/* ---------- accordion ---------- */
.accordion{border-top:1px solid var(--line-blue)}
.accordion-item{border-bottom:1px solid var(--line-blue)}
.accordion-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;font-size:16.5px;font-weight:700;color:var(--paper-100);
  cursor:pointer;
}
.accordion-trigger::after{
  content:"+";font-family:var(--font-mono);font-size:20px;color:var(--cyan-400);
  transition:transform .25s var(--ease);
}
.accordion-trigger[aria-expanded="true"]::after{transform:rotate(45deg)}
.accordion-panel{padding:0 4px 22px;font-size:15.5px;color:var(--mist-400)}
.accordion-panel[hidden]{display:none}

/* ---------- breadcrumb ---------- */
.breadcrumb{margin:28px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--font-mono);font-size:13px;color:var(--mist-400)}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-item + .breadcrumb-item::before{content:"/";color:rgba(154,164,184,.45)}
.breadcrumb-link{color:var(--mist-400);text-decoration:none;transition:color .2s var(--ease)}
.breadcrumb-link:hover{color:var(--cyan-400)}
.breadcrumb-current{color:var(--paper-100)}

/* ---------- figures ---------- */
.figure-frame{
  position:relative;margin:0;overflow:hidden;
  border:1px solid var(--line-blue);border-radius:var(--radius-card);
  background:linear-gradient(150deg,var(--ink-700),#0A1024 58%,#101A38);
}
.figure-frame img{display:block;width:100%;height:100%;object-fit:cover;aspect-ratio:16 / 9}
.figure-frame--wide img{aspect-ratio:21 / 9}
.figure-frame--tall img{aspect-ratio:4 / 5}
.figure-caption{margin-top:10px;font-size:13px;color:var(--mist-400)}

/* ---------- reveal & utilities ---------- */
.has-js [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .65s var(--ease),transform .65s var(--ease);
}
.has-js [data-reveal].is-revealed{opacity:1;transform:none}
.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
[hidden]{display:none !important}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-editorial{grid-template-columns:minmax(0,1fr);gap:32px}
  .note-rail{position:static;padding-left:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px 32px}
  .footer-lede{grid-column:1 / -1}
}

@media (max-width:960px){
  .header-inner{width:min(100% - 24px,var(--shell))}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .brand,.nav-toggle{position:relative;z-index:95}

  .nav-capsule{
    position:fixed;top:0;right:0;bottom:0;z-index:90;
    width:min(86vw,340px);
    margin:0;padding:84px 20px 32px;
    flex-direction:column;align-items:stretch;gap:6px;
    border:0;border-left:1px solid var(--line-blue);border-radius:0;
    background:linear-gradient(180deg,var(--ink-700),var(--ink-900));
    backdrop-filter:none;
    transform:translateX(105%);
    visibility:hidden;overflow-y:auto;
    transition:transform .34s var(--ease),visibility .34s var(--ease);
  }
  .nav-capsule[data-open="true"]{transform:translateX(0);visibility:visible}

  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{
    display:block;padding:13px 14px;border-radius:12px;
    border:1px solid transparent;font-size:16px;
  }
  .nav-link[aria-current="page"]{border-color:rgba(43,240,216,.35)}

  .nav-utility{
    display:flex;flex-direction:column;gap:8px;
    margin-top:22px;padding-top:20px;border-top:1px solid var(--line-blue);
  }
  .nav-utility-label{
    font-size:11px;letter-spacing:.16em;text-transform:uppercase;
    color:var(--mist-400);padding-left:14px;
  }
  .nav-utility-link{
    display:block;padding:10px 14px;border-radius:12px;
    color:var(--mist-400);font-size:15px;text-decoration:none;
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-utility-link:hover{color:var(--paper-100);background:rgba(244,247,251,.06)}
  .nav-cta{
    display:flex;justify-content:center;margin-top:14px;
    padding:13px 16px;border-radius:var(--radius-pill);
    background:var(--orange-500);color:#0A0F1E;font-weight:700;text-decoration:none;
  }

  .nav-backdrop{
    display:block;position:fixed;inset:0;z-index:85;
    background:rgba(4,7,17,.72);
    opacity:0;visibility:hidden;cursor:pointer;
    transition:opacity .3s var(--ease),visibility .3s var(--ease);
  }
  .site-header[data-open="true"] .nav-backdrop{opacity:1;visibility:visible}
}

@media (max-width:720px){
  body{font-size:16px}
  .section{padding:64px 0}
  .footer-inner{padding:52px 0 26px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .site-footer{margin-top:72px}
  .figure-frame--wide img{aspect-ratio:16 / 10}
  .figure-frame--tall img{aspect-ratio:3 / 4}
}

@media (max-width:420px){
  .brand-sub{display:none}
  .brand-name{font-size:14.5px}
}

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover,.card:hover,.footer-nav-link:hover{transform:none}
}