/* 196体育台 · 共享站点样式 /assets/site.css */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%;height:auto}
table{border-collapse:collapse}

:root{
  --c-ink:#0E2A24;
  --c-night:#071714;
  --c-orange:#FF8A3D;
  --c-orange-lift:#FFB98A;
  --c-turf:#3ED6A6;
  --c-alert:#D9433B;
  --c-alert-lift:#F07A72;
  --c-clay:#B4744F;
  --c-stone:#6E7A76;
  --c-paper:#F4F1E8;
  --c-rule:#2C3F3A;

  --text-hi:#EFF2EC;
  --text-mid:#A7B4AE;
  --text-low:#7F8D87;

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

  --radius:8px;
  --wrap:1200px;
  --ease:cubic-bezier(.22,.68,.24,1);
  --shadow-soft:0 1px 0 rgba(0,0,0,.32),0 18px 40px -34px rgba(0,0,0,.95);
}

body{
  background:var(--c-ink);
  color:var(--text-hi);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  font-feature-settings:"kern" 1;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.15;letter-spacing:-.015em;color:var(--text-hi)}
h1{font-size:clamp(32px,5.4vw,58px)}
h2{font-size:clamp(24px,3.4vw,36px)}
h3{font-size:clamp(18px,2.2vw,22px)}
h4{font-size:17px}

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

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(16px,4.2vw,40px)}

.skip-link{
  position:absolute;left:clamp(16px,4.2vw,40px);top:-72px;z-index:99;
  display:inline-flex;align-items:center;min-height:42px;padding:0 16px;
  background:var(--c-orange);color:var(--c-night);font-weight:700;font-size:14px;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top 160ms var(--ease);
}
.skip-link:focus{top:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,23,20,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-rule);
  transition:background 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-header.is-scrolled{background:rgba(7,23,20,.985);box-shadow:0 20px 44px -38px #000}
.site-header__inner{position:relative}

.site-header__top{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px clamp(16px,3vw,32px);
  padding-block:14px;
  border-bottom:1px dashed var(--c-rule);
}
.brand{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;min-width:0}
.brand__link{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(18px,2vw,21px);letter-spacing:-.01em;color:var(--text-hi);
}
.brand__mark{width:12px;height:12px;background:var(--c-orange);box-shadow:6px 6px 0 -3px var(--c-turf)}
.brand__tagline{
  position:relative;padding-left:16px;
  font-size:12.5px;letter-spacing:.14em;color:var(--text-low);
}
.brand__tagline::before{content:"";position:absolute;left:0;top:50%;width:9px;height:1px;background:var(--c-clay)}

.site-header__utilities{display:flex;align-items:center;gap:10px;margin-left:auto}

.site-header__main{
  position:relative;display:flex;align-items:center;
  gap:clamp(16px,3vw,40px);padding-block:9px;
}
.site-nav{display:flex;align-items:center;min-width:0}
.site-nav__list{display:flex;flex-wrap:wrap;align-items:center;gap:4px}
.site-nav__item{display:block}
.site-nav__link{
  display:inline-flex;align-items:center;min-height:40px;padding:0 14px;
  border:1px solid transparent;border-radius:var(--radius);
  font-size:14.5px;font-weight:600;letter-spacing:.02em;color:var(--text-mid);
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease);
}
.site-nav__link:hover{color:var(--c-orange-lift);border-color:rgba(255,138,61,.45);background:rgba(255,138,61,.06)}
.site-nav__link[aria-current="page"]{color:var(--c-orange);border-color:var(--c-orange);background:rgba(255,138,61,.08)}
.site-nav__annotation{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  writing-mode:vertical-rl;text-orientation:mixed;
  height:58px;overflow:hidden;pointer-events:none;
  font-family:var(--font-num);font-size:11px;letter-spacing:.42em;color:var(--text-low);
}

.nav-toggle{
  display:none;align-items:center;gap:10px;min-height:40px;padding:0 14px;
  border:1px solid var(--c-rule);border-radius:var(--radius);
  font-size:14px;font-weight:600;color:var(--text-hi);
  transition:border-color 180ms var(--ease),color 180ms var(--ease);
}
.nav-toggle:hover{border-color:var(--c-orange);color:var(--c-orange-lift)}
.nav-toggle__track{display:grid;gap:5px;width:16px}
.nav-toggle__bar{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform 200ms var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

.scroll-gauge{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.scroll-gauge::after{
  content:"";display:block;height:100%;width:var(--gauge,0%);
  background:linear-gradient(90deg,var(--c-orange),var(--c-turf));
  transition:width 140ms linear;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--radius);
  font-family:var(--font-body);font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.btn--signal{background:var(--c-orange);color:var(--c-night);box-shadow:0 10px 28px -18px rgba(255,138,61,.9)}
.btn--signal:hover{background:var(--c-orange-lift)}
.btn--ghost{border-color:var(--c-rule);color:var(--text-hi);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:var(--c-orange);color:var(--c-orange-lift)}
.btn--compact{min-height:38px;padding:0 14px;font-size:14px}

/* ---------- zones & sections ---------- */
.zone{padding-block:clamp(48px,7vw,96px)}
.zone--night{background:var(--c-night);border-block:1px solid var(--c-rule)}
.zone--paper{
  background:var(--c-paper);color:var(--c-ink);
  --text-hi:#0E2A24;--text-mid:#4C5B55;--text-low:#6E7A76;--c-rule:#D9D3C3;
  --shadow-soft:0 1px 0 rgba(14,42,36,.05),0 18px 40px -34px rgba(14,42,36,.42);
}
.section{display:grid;gap:clamp(18px,3vw,34px)}
.section__head{display:grid;gap:10px;max-width:62ch}
.section__title{font-size:clamp(24px,3.4vw,38px)}
.section__lead{font-size:15.5px;color:var(--text-mid);max-width:48ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.22em;color:var(--c-orange);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.zone--paper .eyebrow{color:var(--c-clay)}

/* ---------- grid & panels ---------- */
.grid{display:grid;gap:clamp(14px,2vw,22px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}

.panel{
  position:relative;display:grid;gap:12px;align-content:start;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--c-rule);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,0));
  box-shadow:var(--shadow-soft);
  transition:border-color 200ms var(--ease);
}
.panel:hover{border-color:rgba(255,138,61,.5)}
.panel--focus{border-color:rgba(255,138,61,.55)}
.zone--paper .panel{background:rgba(255,255,255,.72)}
.panel__index{font-family:var(--font-num);font-size:11.5px;letter-spacing:.28em;color:var(--text-low)}
.panel__title{font-size:clamp(18px,2.2vw,22px)}
.panel__text{font-size:15px;color:var(--text-mid)}

/* ---------- stats & tags ---------- */
.stat{display:grid;gap:6px}
.stat__value{font-family:var(--font-num);font-size:clamp(26px,3.6vw,40px);line-height:1;letter-spacing:-.02em;color:var(--c-orange)}
.stat__label{font-size:12.5px;letter-spacing:.14em;color:var(--text-low)}
.stat--turf .stat__value{color:var(--c-turf)}
.stat--alert .stat__value{color:var(--c-alert-lift)}
.zone--paper .stat__value{color:#B4531A}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--c-rule);border-radius:999px;
  font-size:12px;letter-spacing:.1em;color:var(--text-mid);
}
.tag--turf{border-color:rgba(62,214,166,.5);color:var(--c-turf)}
.tag--alert{border-color:rgba(217,67,59,.5);color:var(--c-alert-lift)}
.tag--clay{border-color:rgba(180,116,79,.55);color:#DCA685}

/* ---------- decorations ---------- */
.gauge-band{
  height:24px;border-block:1px solid var(--c-rule);
  background-image:repeating-linear-gradient(90deg,var(--c-rule) 0 1px,transparent 1px 28px);
  background-repeat:repeat-x;background-position:center;background-size:auto 8px;
}
.v-note{
  writing-mode:vertical-rl;text-orientation:mixed;
  font-family:var(--font-num);font-size:11px;letter-spacing:.34em;color:var(--text-low);
}
.divider{height:1px;border:0;background:var(--c-rule)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;padding-bottom:2px;
  font-weight:700;color:var(--c-orange);border-bottom:1px solid rgba(255,138,61,.4);
  transition:color 180ms var(--ease),border-color 180ms var(--ease);
}
.link-more:hover{color:var(--c-orange-lift);border-color:var(--c-orange-lift)}

/* ---------- prose ---------- */
.prose{max-width:34em;font-size:16px;line-height:1.85;color:var(--text-mid)}
.prose p + p{margin-top:1.1em}
.prose strong{color:var(--text-hi);font-weight:700}

/* ---------- crumbs ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.12em;color:var(--text-low);
}
.crumbs a{transition:color 180ms var(--ease)}
.crumbs a:hover{color:var(--c-orange-lift)}
.crumbs__sep{opacity:.6}

/* ---------- media frame ---------- */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:4/3;
  border:1px solid var(--c-rule);border-radius:var(--radius);
  background:
    radial-gradient(120% 130% at 18% 10%,rgba(255,138,61,.18),transparent 58%),
    linear-gradient(180deg,#0B211D,#071714);
}
.media-frame img{width:100%;height:100%;object-fit:cover;object-position:center}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__caption{
  position:absolute;left:12px;bottom:10px;
  padding:3px 8px;border-radius:4px;
  background:rgba(7,23,20,.62);
  font-family:var(--font-num);font-size:11px;letter-spacing:.16em;color:rgba(244,241,232,.88);
}

/* ---------- expandable group ---------- */
.expand{
  border:1px solid var(--c-rule);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));
  overflow:hidden;
}
.zone--paper .expand{background:rgba(255,255,255,.72)}
.expand__item + .expand__item{border-top:1px solid var(--c-rule)}
.expand__trigger{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;
  padding:18px clamp(16px,2.4vw,24px);text-align:left;
  font-size:16px;font-weight:700;color:var(--text-hi);
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.expand__trigger:hover{color:var(--c-orange-lift);background:rgba(255,138,61,.06)}
.expand__sign{position:relative;flex:0 0 auto;width:14px;height:14px}
.expand__sign::before,.expand__sign::after{
  content:"";position:absolute;left:0;top:6px;width:14px;height:1.5px;background:currentColor;
  transition:transform 200ms var(--ease);
}
.expand__sign::after{transform:rotate(90deg)}
.expand__item.is-open .expand__sign::after{transform:rotate(0deg)}
.expand__panel{display:none;padding:0 clamp(16px,2.4vw,24px) 20px;font-size:15px;color:var(--text-mid)}
.expand__item.is-open .expand__panel{display:block;animation:panel-in 200ms var(--ease) both}
@keyframes panel-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-night);border-top:1px solid var(--c-rule);
  padding-top:clamp(40px,6vw,72px);color:var(--text-mid);
}
.site-footer__grid{
  display:grid;gap:clamp(24px,3vw,40px);
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  padding-bottom:clamp(28px,4vw,44px);
}
.site-footer__cell{min-width:0}
.site-footer__brand{
  font-family:var(--font-display);font-weight:900;font-size:22px;
  letter-spacing:-.01em;color:var(--text-hi);
}
.site-footer__lede{margin-top:10px;font-size:14.5px;color:var(--text-mid);max-width:26ch}
.site-footer__note{margin-top:10px;font-size:12.5px;line-height:1.7;color:var(--text-low);max-width:28ch}
.site-footer__title{
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--text-low);
}
.site-footer__title::before{content:"";width:14px;height:1px;background:var(--c-orange)}
.site-footer__list{display:grid;gap:10px;font-size:14.5px}
.site-footer__list--contact{gap:12px;font-family:var(--font-num);font-size:13.5px;letter-spacing:.01em}
.site-footer__link{display:inline-block;color:var(--text-mid);transition:color 180ms var(--ease)}
.site-footer__link:hover{color:var(--c-orange-lift)}
.site-footer__key{
  display:inline-block;margin-right:10px;padding:1px 7px;
  border:1px solid var(--c-rule);border-radius:4px;
  font-size:11px;letter-spacing:.16em;color:var(--text-low);
}
.site-footer__base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;padding-block:20px;
  border-top:1px dashed var(--c-rule);
  font-family:var(--font-num);font-size:12.5px;letter-spacing:.06em;color:var(--text-low);
}
.site-footer__icp{color:var(--c-stone)}
.site-footer__copy{color:var(--text-low)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .site-footer__grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-nav__annotation{display:none}
  .site-header__main{flex-wrap:wrap;padding-block:0 12px}
  .site-nav{
    display:none;width:100%;order:2;margin-top:10px;
    border:1px solid var(--c-rule);border-radius:var(--radius);
    background:rgba(7,23,20,.96);
  }
  .site-nav[data-open],
  .site-header[data-open] .site-nav{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding:6px}
  .site-nav__item + .site-nav__item{border-top:1px solid var(--c-rule)}
  .site-nav__link{width:100%;min-height:48px;padding:12px 14px;font-size:15px;border-radius:6px}
  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .grid--12{grid-template-columns:minmax(0,1fr)}
  .brand__tagline{display:none}
  .site-footer__grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .site-footer__base{flex-direction:column;align-items:flex-start}
  .prose{max-width:none}
}
@media (max-width:420px){
  .btn--compact{padding:0 12px;font-size:13.5px}
  .nav-toggle__label{display:none}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}