/* ============================================================
   斗鱼体育主站 · /assets/site.css
   共享外壳：框架式页头 / 页脚 / 通用组件
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --c-bg:#071427;
  --c-panel:#0E2440;
  --c-cyan:#22E0D6;
  --c-cyan-dim:#0F7D7A;
  --c-orange:#FF4E1F;
  --c-red:#FF2D3F;
  --c-yellow:#FFC61A;
  --c-white:#F2F7FA;
  --c-gray:#7A8CA0;
  --c-ink:#04090F;

  --cut:16px;
  --cut-sm:10px;
  --cut-tr:polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  --cut-tr-sm:polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, 0 100%);

  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","IBM Plex Mono",Menlo,Consolas,"Courier New",monospace;

  --frame-h:62px;
  --ticker-h:44px;
  --shell-top:calc(var(--frame-h) + var(--ticker-h));
  --ease:cubic-bezier(.22,.61,.36,1);
  --gutter:22px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:calc(var(--shell-top) + 4px);
  background:var(--c-bg);
  color:var(--c-white);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img,svg,video,canvas{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
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%}

h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-weight:600;line-height:1.25;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.2vw,3.1rem);font-weight:500;letter-spacing:-.03em;line-height:1.12}
h2{font-size:clamp(1.4rem,2.2vw,2rem);font-weight:500;letter-spacing:-.02em}
h3{font-size:1.08rem;font-weight:600}
h4{font-size:.95rem;font-weight:600}

:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px}
::selection{background:var(--c-orange);color:#fff}

/* ---------- 3. 通用排版 ---------- */
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.display{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(2.2rem,5.4vw,4.2rem);
  line-height:1.04;
  letter-spacing:-.035em;
}
.lead{font-size:clamp(1rem,1.4vw,1.15rem);line-height:1.8;color:#CBD9E4;max-width:62ch}
.muted{color:var(--c-gray)}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--c-cyan);
  margin:0 0 14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--c-cyan);flex:0 0 auto}
.index-no{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--c-cyan-dim)}

/* ---------- 4. 布局容器 ---------- */
.content-wrap{width:100%;max-width:1360px;margin:0 auto;padding:0 clamp(16px,3vw,32px)}
.section{position:relative;padding:clamp(44px,6vw,80px) 0}
.section--panel{background:var(--c-panel)}
.section--ink{background:var(--c-ink);border-top:1px solid rgba(34,224,214,.14);border-bottom:1px solid rgba(34,224,214,.14)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:18px;
  padding-bottom:14px;margin-bottom:28px;
  border-bottom:1px solid rgba(34,224,214,.2);
}
.section-head__idx{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--c-cyan-dim)}
.slash-rule{
  height:2px;border:0;margin:0;
  background:linear-gradient(90deg,var(--c-cyan) 0 88px,var(--c-orange) 88px 120px,var(--c-cyan-dim) 120px 190px,rgba(122,140,160,.26) 190px 100%);
}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gutter)}
.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-10{grid-column:span 10}
.col-12{grid-column:1/-1}

/* ---------- 5. 面板 / 标签 ---------- */
.panel{
  position:relative;
  background:var(--c-panel);
  border:1px solid rgba(34,224,214,.14);
  clip-path:var(--cut-tr);
  padding:clamp(18px,2.2vw,26px);
}
.panel::before{
  content:"";position:absolute;left:0;top:0;width:44px;height:2px;background:var(--c-cyan);
}
.panel--ink{background:var(--c-ink)}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 9px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.12em;
  color:var(--c-cyan);border:1px solid rgba(34,224,214,.35);
  clip-path:polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
}
.tag--accent{color:var(--c-orange);border-color:rgba(255,78,31,.45)}

/* ---------- 6. 图片容器（供页面阶段使用） ---------- */
.media{
  position:relative;display:block;
  background:var(--c-panel);
  border:1px solid rgba(34,224,214,.16);
  clip-path:var(--cut-tr);
  overflow:hidden;
}
.media__img{width:100%;aspect-ratio:16/9;object-fit:cover}
.media--tall .media__img{aspect-ratio:4/5}
.media--square .media__img{aspect-ratio:1/1}
.media__frame{
  position:relative;width:100%;aspect-ratio:16/9;
  background:linear-gradient(150deg,var(--c-panel),var(--c-bg) 62%,var(--c-ink));
}
.media--tall .media__frame{aspect-ratio:4/5}
.media--square .media__frame{aspect-ratio:1/1}
.media__frame::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(34,224,214,.10) 0 1px,transparent 1px 14px);
}
.media__frame::after{
  content:"";position:absolute;left:14px;bottom:14px;width:42px;height:3px;background:var(--c-orange);
}
.media__cap{
  position:absolute;left:0;bottom:0;max-width:100%;
  padding:7px 11px;background:rgba(4,9,15,.86);
  color:var(--c-gray);font-family:var(--font-mono);font-size:11px;line-height:1.5;letter-spacing:.06em;
}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0 0 18px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--c-gray);
}
.breadcrumb a{color:var(--c-gray);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--c-cyan)}
.breadcrumb__sep{color:var(--c-cyan-dim)}
.breadcrumb__here{color:var(--c-white)}

/* ---------- 8. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;
  font-size:14px;font-weight:600;letter-spacing:.04em;line-height:1;
  border:1px solid transparent;
  clip-path:var(--cut-tr-sm);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--c-cyan)}
.btn--accent{background:var(--c-orange);color:#fff}
.btn--accent:hover{background:#FF6A3F}
.btn--accent:focus-visible{box-shadow:inset 0 0 0 2px #fff}
.btn--cyan{background:var(--c-cyan);color:var(--c-ink)}
.btn--cyan:hover{background:#5FEFE7}
.btn--ghost{border-color:rgba(34,224,214,.45);color:var(--c-cyan)}
.btn--ghost:hover{background:rgba(34,224,214,.12)}
.btn--sm{padding:9px 14px;font-size:13px}

/* ---------- 9. 页头外框 ---------- */
.skip-link{
  position:fixed;left:12px;top:-72px;z-index:90;
  padding:12px 18px;
  background:var(--c-cyan);color:var(--c-ink);
  font-size:14px;font-weight:600;
  clip-path:var(--cut-tr-sm);
  transition:top .22s var(--ease);
}
.skip-link:focus{top:calc(var(--shell-top) + 10px)}

.site-frame{position:fixed;left:0;right:0;top:0;z-index:80}

.frame-top{
  background:rgba(7,20,39,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(34,224,214,.18);
}
.frame-inner{
  display:flex;align-items:center;gap:16px;
  width:100%;max-width:1360px;height:var(--frame-h);
  margin:0 auto;padding:0 clamp(16px,3vw,32px);
}

.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-cyan) 0 46%,var(--c-orange) 46% 100%);
  color:var(--c-ink);font-size:16px;font-weight:700;line-height:1;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;gap:2px}
.brand__name{font-size:16px;font-weight:600;letter-spacing:.02em;line-height:1.2}
.brand__sub{
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:var(--c-gray);line-height:1.2;
}

.frame-nav{margin-left:auto}
.frame-nav__list{display:flex;align-items:center;gap:2px}
.frame-nav__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:6px;
  padding:9px 11px;
  font-size:14px;font-weight:500;color:var(--c-gray);
  transition:color .2s var(--ease);
}
.frame-nav__link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;
  background:var(--c-orange);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .24s var(--ease);
}
.frame-nav__link:hover{color:var(--c-white)}
.frame-nav__link:hover::after{transform:scaleX(1)}
.frame-nav__link[aria-current="page"]{color:var(--c-white)}
.frame-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--c-cyan)}
.frame-nav__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--c-cyan-dim)}
.frame-nav__link[aria-current="page"] .frame-nav__idx{color:var(--c-orange)}

.frame-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 12px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.14em;
  color:var(--c-cyan);border:1px solid rgba(34,224,214,.35);
  clip-path:var(--cut-tr-sm);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--c-cyan)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars i{display:block;height:2px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle__bars i:nth-child(2){width:70%}
.site-frame[data-open] .nav-toggle{color:var(--c-orange);border-color:rgba(255,78,31,.5)}
.site-frame[data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-frame[data-open] .nav-toggle__bars i:nth-child(2){opacity:0}
.site-frame[data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 10. 赛程带 ---------- */
.ticker{
  display:flex;align-items:center;gap:14px;
  height:var(--ticker-h);
  background:linear-gradient(90deg,var(--c-ink),var(--c-panel) 38%,var(--c-ink));
  border-bottom:1px solid rgba(34,224,214,.2);
  padding-left:clamp(16px,3vw,32px);
}
.ticker__label{
  flex:0 0 auto;display:flex;align-items:center;height:calc(var(--ticker-h) - 18px);
  padding:0 12px;
  background:var(--c-cyan);color:var(--c-ink);
  font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.16em;
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.ticker__viewport{
  flex:1 1 auto;min-width:0;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 46px,#000 calc(100% - 46px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 46px,#000 calc(100% - 46px),transparent 100%);
}
.ticker__track{display:flex;align-items:center;width:max-content;animation:ticker-scroll 72s linear infinite}
.ticker__viewport:hover .ticker__track{animation-play-state:paused}
.ticker__list{display:flex;align-items:center}
.ticker__item{
  display:flex;align-items:center;gap:10px;
  padding:0 22px;
  border-right:1px dashed rgba(122,140,160,.26);
  white-space:nowrap;
}
.match__time{font-size:12px;color:var(--c-cyan);letter-spacing:.06em}
.match__teams{font-size:13.5px;color:var(--c-white)}
.match__vs{font-style:normal;font-size:11px;color:var(--c-gray);padding:0 2px}
.match__score{font-size:14px;font-weight:700;color:var(--c-orange)}
.match__score--none{color:var(--c-gray);font-weight:500}
.match__cards{display:inline-flex;align-items:center;gap:5px}

.card-pill{
  display:inline-flex;align-items:center;
  padding:2px 7px;border-radius:1px;
  font-family:var(--font-mono);font-size:11px;font-weight:700;line-height:1.5;
  color:var(--c-ink);
}
.card-pill--yellow{background:var(--c-yellow)}
.card-pill--red{background:var(--c-red);color:#fff}

@keyframes ticker-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 11. 进度条 / 左轨 / 右比分栏 ---------- */
.frame-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--c-cyan);
  transform:scaleX(0);transform-origin:0 50%;
  z-index:2;
}
.frame-rail{
  position:fixed;left:0;top:var(--shell-top);bottom:0;width:6px;
  display:none;
  background:repeating-linear-gradient(180deg,var(--c-cyan-dim) 0 2px,transparent 2px 14px);
  opacity:.55;pointer-events:none;
}
.live-rail{
  position:fixed;right:0;top:var(--shell-top);bottom:0;width:78px;
  display:none;flex-direction:column;align-items:center;gap:14px;
  padding:16px 6px;
  background:rgba(4,9,15,.82);
  border-left:1px solid rgba(34,224,214,.22);
  overflow:hidden;
}
.live-rail__title{
  margin:0;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--c-cyan);
}
.live-rail__list{display:flex;flex-direction:column;gap:16px;align-items:center}
.live-rail__item{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding-bottom:14px;border-bottom:1px dashed rgba(122,140,160,.28);
}
.live-rail__item:last-child{border-bottom:0;padding-bottom:0}
.live-rail__team{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:12px;letter-spacing:.14em;color:var(--c-white);
}
.live-rail__score{font-size:13px;font-weight:700;color:var(--c-cyan)}
.live-rail__state{font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;color:var(--c-gray)}

/* ---------- 12. 显现动效 ---------- */
html.js [data-reveal]{
  opacity:0;transform:translate3d(-8px,14px,0);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
html.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 13. 页脚 ---------- */
.site-foot{
  position:relative;
  background:var(--c-ink);
  border-top:1px solid rgba(34,224,214,.18);
  margin-top:clamp(48px,7vw,90px);
}
.foot-inner{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.6fr 1.5fr 1fr;
  gap:clamp(20px,2.4vw,34px);
  width:100%;max-width:1360px;margin:0 auto;
  padding:clamp(34px,5vw,58px) clamp(16px,3vw,32px) 26px;
}
.foot-brand .brand--foot{margin-bottom:4px}
.foot-tagline{margin:16px 0 10px;font-size:15px;color:var(--c-white);max-width:28ch}
.foot-note{margin:0;font-size:11px;letter-spacing:.1em;color:var(--c-cyan-dim)}
.foot-col__title{
  margin:0 0 14px;padding-top:12px;
  border-top:1px solid rgba(34,224,214,.22);
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--c-cyan);line-height:1;
}
.foot-list li{margin-bottom:9px;font-size:14px;color:var(--c-gray)}
.foot-list a{
  display:inline-block;color:var(--c-gray);font-size:14px;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.foot-list a:hover{color:var(--c-cyan);padding-left:6px}
.foot-list--data li{display:flex;gap:10px;align-items:baseline;line-height:1.6}
.foot-key{flex:0 0 42px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--c-cyan-dim)}
.foot-text{margin:0 0 16px;font-size:13.5px;line-height:1.7;color:var(--c-gray);max-width:30ch}
.foot-base{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  width:100%;max-width:1360px;margin:0 auto;
  padding:16px clamp(16px,3vw,32px) 26px;
  border-top:1px dashed rgba(122,140,160,.3);
}
.foot-base p{margin:0;font-size:11px;letter-spacing:.08em;color:var(--c-gray)}

.to-top{
  position:fixed;right:clamp(12px,2vw,26px);bottom:clamp(12px,2vw,26px);z-index:70;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  width:48px;height:48px;
  background:rgba(14,36,64,.94);
  border:1px solid rgba(34,224,214,.45);
  color:var(--c-cyan);
  clip-path:var(--cut-tr-sm);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.to-top.is-on{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--c-cyan);color:var(--c-ink)}
.to-top:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--c-cyan)}
.to-top__arrow{font-size:15px;line-height:1}
.to-top__label{font-family:var(--font-mono);font-size:9px;font-weight:600;letter-spacing:.1em}

/* ---------- 14. 响应式 ---------- */
@media (min-width:1100px){
  .frame-rail{display:block}
}
@media (min-width:1560px){
  .live-rail{display:flex}
}

@media (max-width:1080px){
  .grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}
  .col-3,.col-4,.col-5{grid-column:span 6}
  .col-6{grid-column:span 6}
  .col-7,.col-8,.col-9,.col-10{grid-column:1/-1}
  .foot-inner{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}

@media (max-width:899px){
  :root{--frame-h:58px;--ticker-h:42px}
  .nav-toggle{display:inline-flex}
  .frame-nav{
    position:fixed;left:0;right:0;top:var(--shell-top);
    margin:0;padding:16px clamp(16px,4vw,24px) 24px;
    background:var(--c-ink);
    border-bottom:1px solid rgba(34,224,214,.3);
    clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
    visibility:hidden;opacity:0;transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s linear;
  }
  .site-frame[data-open] .frame-nav{visibility:visible;opacity:1;transform:none}
  .frame-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .frame-nav__link{
    justify-content:flex-start;gap:10px;
    padding:13px 4px;font-size:17px;
    border-bottom:1px dashed rgba(122,140,160,.28);
  }
  .frame-nav__link::after{left:4px;right:auto;width:36px;bottom:10px}
  .frame-nav__item:last-child .frame-nav__link{border-bottom:0}
  .frame-nav__idx{font-size:11px}
  .brand__sub{display:none}
  .ticker__item{padding:0 16px}
  .ticker{gap:10px}
}

@media (max-width:680px){
  body{font-size:16px}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10{grid-column:1/-1}
  .frame-actions .btn--sm{display:none}
  .foot-inner{grid-template-columns:1fr;padding-top:30px}
  .foot-base{flex-direction:column;gap:6px}
  .ticker__label{font-size:10px;padding:0 9px;letter-spacing:.1em}
  .match__cards{display:none}
}

/* ---------- 15. 无障碍与降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js [data-reveal]{opacity:1 !important;transform:none !important}
  .ticker__viewport{overflow-x:auto;mask-image:none;-webkit-mask-image:none}
  .ticker__track{animation:none !important;transform:none !important}
  .to-top{opacity:1;transform:none}
  .to-top:not(.is-on){opacity:0}
}