/* =========================================================
   悦盈体育看台 · 全站共享样式  /assets/site.css
   框架式导航 + Bento 档案板 + 粗野主义数据卡片
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --green:#0B3B2E;
  --green-deep:#062A21;
  --carbon:#101314;
  --carbon-soft:#1B2323;
  --concrete:#7C838A;
  --paper:#E9E7E0;
  --red:#E0242B;
  --yellow:#F5C518;
  --cyan:#35F0D0;
  --teal:#1E8C7A;
  --mist:#B6BCB5;
  --ink:#2A2E31;
  --line:#22302D;

  --rail-w:96px;
  --bar-h:64px;
  --maxw:1240px;
  --gap:clamp(16px,2vw,26px);

  --shadow-hard:6px 6px 0 var(--carbon);
  --shadow-cyan:6px 6px 0 rgba(53,240,208,.45);

  --font-sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,'Courier New',monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,figure,blockquote,ul,ol,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video,canvas{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:2px;}
::selection{background:var(--cyan);color:var(--carbon);}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--green);
  background-image:
    radial-gradient(1100px 520px at 88% -8%, rgba(53,240,208,.10), transparent 62%),
    radial-gradient(900px 480px at -6% 104%, rgba(30,140,122,.16), transparent 66%);
  padding-left:var(--rail-w);
  padding-top:var(--bar-h);
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-weight:800;line-height:1.24;letter-spacing:.02em;}
h1{font-size:clamp(34px,5vw,64px);}
h2{font-size:clamp(24px,3.2vw,34px);}
h3{font-size:clamp(18px,2vw,22px);}
h4{font-size:16px;}

.mono-label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  font-variant-numeric:tabular-nums;
}
.display-num{
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  font-size:clamp(48px,8vw,120px);
  line-height:.94;
  letter-spacing:-.02em;
  color:var(--cyan);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--cyan);flex:none;}
.prose{font-size:15.5px;line-height:1.85;color:var(--mist);}
.prose + .prose{margin-top:14px;}
.prose p,.card__body{max-width:46ch;}
.section--paper .prose{color:#41474A;}
.link{
  color:var(--cyan);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.link:hover{text-decoration-thickness:2px;}

/* ---------- 4. 布局骨架 ---------- */
.wrap{width:min(100% - 40px, var(--maxw));margin-inline:auto;}
.wrap--narrow{width:min(100% - 40px, 860px);margin-inline:auto;}
.section{padding:clamp(44px,6vw,92px) 0;position:relative;}
.section--tight{padding:clamp(24px,3vw,44px) 0;}
.section--paper{background:var(--paper);color:var(--ink);}
.section--deep{background:var(--green-deep);}
.section--carbon{background:var(--carbon);color:var(--paper);}
.section--edge{border-top:2px solid var(--line);border-bottom:2px solid var(--line);}
.section__head{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  align-items:flex-end;justify-content:space-between;
  margin-bottom:clamp(22px,3vw,38px);
}
.section__head--stack{align-items:flex-start;flex-direction:column;}

.bento{display:grid;gap:var(--gap);grid-template-columns:repeat(12,minmax(0,1fr));}
.col-3{grid-column:span 3;}
.col-4{grid-column:span 4;}
.col-5{grid-column:span 5;}
.col-6{grid-column:span 6;}
.col-7{grid-column:span 7;}
.col-8{grid-column:span 8;}
.col-9{grid-column:span 9;}
.col-12{grid-column:span 12;}

/* ---------- 5. 按钮 / 标签 / 图例 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-sans);
  font-size:14px;font-weight:700;letter-spacing:.05em;line-height:1;
  padding:12px 18px;
  border:2px solid var(--carbon);border-radius:2px;
  background:var(--yellow);color:var(--carbon);
  box-shadow:4px 4px 0 rgba(16,19,20,.85);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),
             background-color .2s linear,color .2s linear,border-color .2s linear;
}
.btn:hover{transform:translate(-1px,-2px);box-shadow:6px 6px 0 rgba(16,19,20,.85);}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(16,19,20,.85);}
.btn--cyan{background:var(--cyan);}
.btn--cyan:hover{background:#4ffbdc;}
.btn--ghost{
  background:transparent;color:var(--paper);
  border-color:var(--mist);
  box-shadow:4px 4px 0 rgba(53,240,208,.28);
}
.btn--ghost:hover{color:var(--cyan);border-color:var(--cyan);}
.btn--sm{padding:9px 14px;font-size:13px;letter-spacing:.03em;}
.btn--block{width:100%;}

.tag{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:11px;font-weight:700;
  letter-spacing:.08em;line-height:1;
  padding:4px 9px;border-radius:999px;
  background:var(--concrete);color:var(--carbon);
  white-space:nowrap;
}
.tag--red{background:var(--red);color:#fff;border-radius:2px;}
.tag--yellow{background:var(--yellow);color:var(--carbon);border-radius:2px;}
.tag--cyan{background:var(--cyan);color:var(--carbon);}
.tag--ghost{background:transparent;color:var(--mist);border:1px solid var(--concrete);}

.legend{
  display:flex;flex-wrap:wrap;gap:8px 18px;
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--mist);
}
.legend__item{display:inline-flex;align-items:center;gap:7px;}
.legend__dot{
  width:12px;height:12px;display:inline-block;flex:none;
  border:1px solid rgba(16,19,20,.45);
}
.legend__dot--red{background:var(--red);}
.legend__dot--yellow{background:var(--yellow);}
.legend__dot--cyan{background:var(--cyan);}
.legend__dot--teal{background:var(--teal);}
.legend__dot--gray{background:var(--concrete);}

/* ---------- 6. 卡片 / 媒体 / 面包屑 ---------- */
.card{
  position:relative;
  display:flex;flex-direction:column;gap:12px;
  padding:clamp(18px,2vw,24px);
  background:var(--green-deep);
  border:2px solid var(--carbon);
  border-radius:2px;
  box-shadow:var(--shadow-hard);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s linear;
}
.card:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--carbon);}
.card--focus{border-color:var(--cyan);box-shadow:var(--shadow-cyan);}
.card--focus:hover{box-shadow:8px 8px 0 rgba(53,240,208,.5);}
.card--paper{background:var(--paper);color:var(--ink);}
.card--flat{background:var(--carbon);box-shadow:none;}
.card__idx{
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.12em;color:var(--concrete);
  font-variant-numeric:tabular-nums;
}
.card__title{font-size:clamp(18px,1.6vw,21px);font-weight:800;letter-spacing:.02em;}
.card__body{font-size:15px;line-height:1.8;color:var(--mist);}
.card--paper .card__body{color:#41474A;}
.card__tags{display:flex;flex-wrap:wrap;gap:8px;}
.card__foot{
  margin-top:auto;padding-top:12px;
  border-top:1px solid rgba(124,131,138,.35);
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--concrete);
}

.media{
  position:relative;overflow:hidden;
  border:2px solid var(--carbon);border-radius:2px;
  background:var(--green-deep);
  aspect-ratio:16 / 9;
}
.media__img{width:100%;height:100%;object-fit:cover;}
.media--wide{aspect-ratio:21 / 9;}
.media--tall{aspect-ratio:3 / 4;}
.media--square{aspect-ratio:1 / 1;}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:10px 12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--paper);
  background:linear-gradient(to top, rgba(6,42,33,.92), rgba(6,42,33,0));
}
.media--pitch{
  background-image:
    linear-gradient(to right, transparent calc(50% - 1px), rgba(233,231,224,.20) 50%, transparent calc(50% + 1px)),
    radial-gradient(circle at 50% 50%, transparent 0 56px, rgba(233,231,224,.20) 56px 58px, transparent 58px),
    linear-gradient(to bottom, transparent calc(100% - 62px), rgba(233,231,224,.16) calc(100% - 62px) calc(100% - 60px), transparent calc(100% - 60px)),
    linear-gradient(160deg, var(--green), var(--green-deep));
}
.media--heat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 36% 42%, rgba(53,240,208,.55), rgba(53,240,208,.12) 38%, transparent 62%),
    radial-gradient(circle at 72% 68%, rgba(224,36,43,.32), transparent 55%),
    radial-gradient(circle at 58% 26%, rgba(245,197,24,.22), transparent 48%);
}

.breadcrumbs{
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--concrete);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px;}
.breadcrumbs li{display:inline-flex;align-items:center;gap:6px;}
.breadcrumbs li + li::before{content:"/";color:#3E4746;}
.breadcrumbs a{color:var(--mist);}
.breadcrumbs a:hover{color:var(--cyan);}
.breadcrumbs [aria-current="page"]{color:var(--cyan);}

/* ---------- 7. 头部（框架式导航） ---------- */
.site-header{position:relative;z-index:150;}

.skip-link{
  position:fixed;top:8px;left:8px;z-index:300;
  transform:translateY(-220%);
  padding:10px 16px;
  background:var(--cyan);color:var(--carbon);
  border:2px solid var(--carbon);border-radius:2px;
  font-weight:700;font-size:14px;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

.header-bar{
  position:fixed;top:0;left:var(--rail-w);right:0;
  height:var(--bar-h);
  display:flex;align-items:center;
  gap:clamp(10px,2vw,22px);
  padding:0 clamp(14px,2.5vw,28px);
  background:var(--carbon);
  border-bottom:2px solid var(--carbon-soft);
  z-index:120;
}
.header-bar__spacer{flex:1 1 auto;}
.header-bar__code{color:var(--concrete);white-space:nowrap;}
.header-bar__cta{flex:none;}

.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;}
.brand__gate{
  width:28px;height:28px;flex:none;
  border:2px solid var(--cyan);border-radius:2px;
  background:
    linear-gradient(135deg, transparent 46%, var(--cyan) 46%, var(--cyan) 54%, transparent 54%),
    var(--green-deep);
  box-shadow:3px 3px 0 rgba(53,240,208,.25);
}
.brand__stack{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.brand__name{
  font-size:17px;font-weight:800;
  letter-spacing:.06em;color:var(--paper);
  white-space:nowrap;
}
.brand__tag{
  font-family:var(--font-mono);font-size:11px;
  letter-spacing:.1em;color:var(--concrete);
  white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:8px;flex:none;
  padding:8px 12px;
  border:2px solid var(--cyan);border-radius:2px;
  color:var(--cyan);background:transparent;
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.12em;
  transition:background-color .2s linear,color .2s linear;
}
.nav-toggle[aria-expanded="true"]{background:var(--cyan);color:var(--carbon);}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px;flex:none;}
.nav-toggle__bars span{display:block;height:2px;background:currentColor;}
.nav-toggle__bars span:nth-child(2){width:68%;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){width:100%;}

.rail{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--rail-w);
  z-index:140;
  display:flex;flex-direction:column;align-items:center;
  gap:10px;padding:12px 0 14px;
  background:var(--carbon);
  border-right:2px solid var(--carbon-soft);
  overflow:hidden;
}
.rail__mark{
  width:40px;height:40px;flex:none;
  display:grid;place-items:center;
  background:var(--yellow);color:var(--carbon);
  font-size:20px;font-weight:900;
  border-radius:2px;
  box-shadow:3px 3px 0 var(--teal);
}
.rail__foot{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:10px;letter-spacing:.24em;color:#465050;
  flex:none;
}

.site-nav{
  display:flex;flex-direction:column;align-items:center;
  width:100%;flex:1 1 auto;
  gap:6px;padding:6px 0;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:thin;
}
.site-nav__list{display:flex;flex-direction:column;align-items:center;gap:6px;}
.site-nav__item{display:block;}
.site-nav__link{
  display:block;
  writing-mode:vertical-rl;
  text-orientation:upright;
  padding:12px 9px;
  font-size:13px;font-weight:600;
  letter-spacing:.18em;
  color:var(--mist);
  border-left:3px solid transparent;
  border-right:3px solid transparent;
  border-radius:2px;
  transition:color .2s linear,background-color .2s linear,border-color .2s linear;
}
.site-nav__link:hover{
  color:var(--cyan);
  background:rgba(53,240,208,.09);
  border-left-color:var(--cyan);
}
.site-nav__link[aria-current="page"]{
  color:#EAFBF6;
  background:rgba(53,240,208,.16);
  border-left-color:var(--cyan);
}
.site-nav__foot{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:9px;letter-spacing:.22em;color:#3C4644;
  flex:none;
}

.scroll-progress{
  position:fixed;
  top:calc(var(--bar-h) - 3px);
  left:var(--rail-w);right:0;
  height:3px;z-index:130;
  background:rgba(53,240,208,.14);
  pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:var(--cyan);
  transition:width .15s linear;
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  background:var(--carbon);
  color:var(--mist);
  border-top:3px solid var(--cyan);
}
.footer-strip{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  padding:12px clamp(16px,3vw,32px);
  background:var(--green-deep);
  border-bottom:2px solid #16201E;
}
.footer-strip__note{font-size:13px;color:var(--mist);}
.footer-strip__meta{color:var(--cyan);}

.footer-main{
  display:grid;
  grid-template-columns:minmax(260px,1.1fr) minmax(0,2fr);
  gap:clamp(28px,4vw,60px);
  align-items:start;
  padding:clamp(36px,5vw,64px) 0;
}
.footer-brand__name{
  font-size:22px;font-weight:900;
  letter-spacing:.05em;color:var(--paper);
}
.footer-brand__tag{
  margin-top:6px;
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.08em;color:var(--concrete);
}
.footer-brand__cta{margin-top:20px;}
.footer-contact{
  margin-top:22px;
  display:grid;gap:8px;
  font-size:13px;line-height:1.65;color:var(--mist);
}
.footer-contact li{position:relative;padding-left:14px;}
.footer-contact li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;background:var(--teal);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(18px,2.5vw,34px);
}
.footer-col__title{
  color:var(--cyan);
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:2px solid var(--carbon-soft);
}
.footer-col__list{display:grid;gap:9px;font-size:13.5px;line-height:1.6;}
.footer-col__list a{
  color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .2s linear,border-color .2s linear;
}
.footer-col__list a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}

.footer-base{
  border-top:2px solid var(--carbon-soft);
  padding:18px 0 26px;
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--concrete);
}
.footer-base__inner{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  align-items:center;justify-content:space-between;
}
.footer-base__links{display:flex;flex-wrap:wrap;gap:16px;}
.footer-base__links a{color:var(--mist);}
.footer-base__links a:hover{color:var(--cyan);}
.footer-base__icp{color:var(--concrete);}

/* ---------- 9. 滚动显现 ---------- */
[data-reveal]{
  opacity:0;
  translate:0 12px;
  transition:opacity .42s var(--ease), translate .42s var(--ease);
}
[data-reveal].is-visible{opacity:1;translate:0 0;}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1023px){
  :root{--rail-w:0px;--bar-h:56px;}

  .rail{
    position:static;width:auto;height:auto;
    padding:0;background:transparent;border:0;
    display:block;overflow:visible;
  }
  .rail__mark,.rail__foot{display:none;}

  .site-nav{
    position:fixed;
    top:var(--bar-h);left:0;right:0;
    display:block;
    max-height:calc(100vh - var(--bar-h));
    overflow-y:auto;
    padding:0;
    background:var(--carbon);
    border-top:2px solid var(--line);
    border-bottom:3px solid var(--cyan);
    transform:translateY(-104%);
    visibility:hidden;
    transition:transform .3s var(--ease), visibility .3s linear;
    z-index:110;
  }
  .site-nav[data-open]{transform:translateY(0);visibility:visible;}

  .site-nav__list{display:block;}
  .site-nav__item{display:block;}
  .site-nav__link{
    writing-mode:horizontal-tb;text-orientation:mixed;
    display:flex;align-items:center;justify-content:space-between;
    padding:15px 22px;
    font-size:16px;letter-spacing:.06em;
    border-left:4px solid transparent;
    border-right:0;border-radius:0;
    border-bottom:1px solid var(--carbon-soft);
  }
  .site-nav__link::after{
    content:"›";
    font-family:var(--font-mono);
    font-size:16px;color:#3E4746;
  }
  .site-nav__link:hover{background:rgba(53,240,208,.08);}
  .site-nav__foot{
    writing-mode:horizontal-tb;text-orientation:mixed;
    padding:14px 22px;
  }

  .header-bar{left:0;}
  .nav-toggle{display:inline-flex;}
  .header-bar__code{display:none;}

  .footer-main{grid-template-columns:1fr;gap:34px;}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));}

  .col-3,.col-4,.col-5{grid-column:span 6;}
  .col-7,.col-8,.col-9{grid-column:span 12;}
}

@media (max-width:639px){
  :root{--bar-h:52px;}

  body{font-size:15.5px;}
  .wrap{width:min(100% - 28px, var(--maxw));}
  .wrap--narrow{width:min(100% - 28px, 860px);}

  .brand{gap:9px;}
  .brand__name{font-size:15.5px;letter-spacing:.04em;}
  .brand__tag{display:none;}
  .brand__gate{width:24px;height:24px;}
  .header-bar__cta{padding:9px 12px;font-size:12.5px;letter-spacing:.02em;}

  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9{grid-column:span 12;}
  .footer-nav{grid-template-columns:1fr;}
  .footer-base__inner{flex-direction:column;align-items:flex-start;}
  .display-num{font-size:clamp(44px,14vw,72px);}
}

/* ---------- 11. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  [data-reveal]{
    translate:0 0;
    transition:opacity .3s linear;
    transition-delay:0ms !important;
  }
  .card:hover{transform:none;}
  .btn:hover,.btn:active{transform:none;}
  .scroll-progress__bar{transition:none;}
  .site-nav{transition:visibility .2s linear, transform .2s linear;}
  .skip-link{transition:none;}
}