/* =========================================================
   KOK体育主站 · 共享样式 /assets/site.css
   深夜赛场 · 电子记分屏 · 纵向叙事长卷
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-900:#0B0E12;
  --ink-800:#141A22;
  --ink-700:#1F2833;
  --ink-600:#26313E;
  --cyan:#00E5C0;
  --cyan-soft:#7CFFE0;
  --orange:#FF7A1A;
  --orange-soft:#FFB066;
  --white:#E8EDF2;
  --muted:#9AA7B4;
  --teal:#12303A;
  --green:#2BE38C;
  --belt-h:64px;
  --shell:1220px;
  --radius:14px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--belt-h);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  color:var(--white);
  background-color:var(--ink-900);
  background-image:radial-gradient(circle at 1px 1px,rgba(232,237,242,.05) 1px,transparent 0);
  background-size:4px 4px;
  transition:padding-top .26s ease;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{max-width:100%;height:auto;display:block;}
a{color:var(--cyan);text-decoration:none;}
a:hover{color:var(--cyan-soft);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
::selection{background:var(--cyan);color:var(--ink-900);}

/* ---------- 3. 通用工具 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:20px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.note{font-size:13px;line-height:1.75;color:var(--muted);border-left:2px solid var(--cyan);padding:4px 0 4px 12px;}
.skip-link{
  position:absolute;top:10px;left:20px;z-index:90;
  transform:translateY(-180%);
  background:var(--cyan);color:var(--ink-900);
  font-size:14px;font-weight:700;padding:9px 16px;border-radius:999px;
  transition:transform .18s ease;
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);color:var(--ink-900);}

/* ---------- 4. 顶栏胶囊带 ---------- */
.site-header{position:relative;z-index:50;background:var(--ink-900);border-bottom:1px solid var(--ink-700);}

.topbelt{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--belt-h);
  display:flex;align-items:center;
  background:rgba(20,26,34,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ink-700);
  transition:height .26s ease,background-color .26s ease;
}
.topbelt[data-condensed="true"]{background:rgba(11,14,18,.96);}
.topbelt__inner{
  width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:20px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}

.live-capsule{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--ink-700);
  background:linear-gradient(90deg,rgba(18,48,58,.92),rgba(18,48,58,.34));
  font-size:13px;color:var(--muted);white-space:nowrap;
}
.live-capsule__dot{
  width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none;
  box-shadow:0 0 0 0 rgba(0,229,192,.5);
  animation:kok-ping 2.4s ease-out infinite;
}
@keyframes kok-ping{
  0%{box-shadow:0 0 0 0 rgba(0,229,192,.55);}
  70%{box-shadow:0 0 0 10px rgba(0,229,192,0);}
  100%{box-shadow:0 0 0 0 rgba(0,229,192,0);}
}
.live-capsule__label{letter-spacing:.06em;}
.live-capsule__count{color:var(--orange);font-weight:700;font-size:15px;}
.live-capsule__unit{letter-spacing:.04em;}
.live-capsule__sep{width:1px;height:14px;background:var(--ink-600);display:inline-block;}
.live-capsule__score{color:var(--orange);font-weight:700;font-size:15px;}

.subscribe-toggle{
  display:inline-flex;align-items:center;gap:8px;
  min-height:42px;padding:8px 18px;border-radius:999px;
  border:1px solid var(--orange);background:var(--orange);color:var(--ink-900);
  font-size:14px;font-weight:700;letter-spacing:.04em;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.subscribe-toggle:hover{background:var(--orange-soft);border-color:var(--orange-soft);color:var(--ink-900);}
.subscribe-toggle__dot{
  width:8px;height:8px;border-radius:50%;flex:none;
  background:transparent;border:1px solid rgba(11,14,18,.65);
}
.subscribe-toggle[aria-pressed="true"]{
  background:var(--teal);border-color:rgba(0,229,192,.65);color:var(--cyan);
}
.subscribe-toggle[aria-pressed="true"] .subscribe-toggle__dot{
  background:var(--green);border-color:var(--green);
  box-shadow:0 0 8px rgba(43,227,140,.85);
}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none;}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  opacity:.95;
}

/* ---------- 5. 居中刊头 ---------- */
.masthead{padding:30px 0 4px;}
.masthead__inner{
  position:relative;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  text-align:center;
}
.masthead__inner::before,
.masthead__inner::after{
  content:"";position:absolute;top:30px;width:min(24%,180px);height:1px;
}
.masthead__inner::before{left:0;background:linear-gradient(90deg,transparent,var(--ink-600));}
.masthead__inner::after{right:0;background:linear-gradient(270deg,transparent,var(--ink-600));}

.brand{display:inline-flex;flex-direction:column;align-items:center;gap:8px;color:var(--white);}
.brand:hover{color:var(--white);}
.brand__mark{
  font-size:clamp(30px,4.6vw,46px);font-weight:800;
  letter-spacing:-.02em;line-height:1.05;
}
.brand__latin{
  color:var(--cyan);letter-spacing:.01em;
  text-shadow:0 0 22px rgba(0,229,192,.35);
}
.brand__tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.2em;font-weight:600;
  color:var(--muted);
  padding:3px 12px;border:1px solid var(--ink-700);border-radius:999px;
  background:rgba(18,48,58,.45);
}
.brand__tag .mono{color:var(--cyan);font-size:12.5px;}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  min-height:44px;padding:0 14px;border-radius:999px;
  border:1px solid var(--ink-700);background:var(--ink-800);color:var(--white);
  font-size:14px;font-weight:600;cursor:pointer;
  position:absolute;right:0;top:4px;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:rgba(0,229,192,.5);color:var(--cyan);}
.nav-toggle__bars{position:relative;display:inline-block;width:18px;height:12px;flex:none;}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:100%;height:2px;border-radius:2px;
  background:currentColor;transition:transform .2s ease,top .2s ease;
}
.nav-toggle__bars::before{top:0;}
.nav-toggle__bars::after{top:10px;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:5px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:5px;transform:rotate(-45deg);}

/* ---------- 6. 栏目导航 ---------- */
.site-nav{border-top:1px solid var(--ink-700);margin-top:18px;}
.site-nav__list{
  display:flex;justify-content:center;flex-wrap:wrap;gap:6px;
  max-width:var(--shell);margin-inline:auto;padding:10px 20px;
}
.site-nav__item{display:flex;}
.site-nav__link{
  display:inline-flex;align-items:center;min-height:44px;padding:0 16px;
  font-size:15px;color:var(--muted);
  border:1px solid transparent;border-radius:999px;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.site-nav__link:hover{
  color:var(--cyan-soft);background:var(--ink-800);border-color:var(--ink-700);
}
.site-nav__link[aria-current="page"]{
  color:var(--cyan);background:rgba(18,48,58,.75);
  border-color:rgba(0,229,192,.45);
  box-shadow:inset 0 -2px 0 var(--cyan);
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  background:var(--ink-800);
  border-top:1px solid var(--ink-700);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;height:2px;width:min(260px,46%);
  background:linear-gradient(90deg,var(--cyan),rgba(0,229,192,0));
}
.site-footer__inner{
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:56px 20px 28px;
}
.footer-top{
  display:grid;grid-template-columns:1.05fr .95fr;gap:36px;
  padding-bottom:34px;border-bottom:1px solid var(--ink-700);
}
.footer-brand__mark{font-size:23px;font-weight:800;letter-spacing:-.02em;margin:0 0 10px;color:var(--white);}
.footer-brand__tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.2em;color:var(--cyan);
  border:1px solid rgba(0,229,192,.35);
  background:rgba(18,48,58,.6);
  padding:3px 10px;border-radius:999px;margin:0 0 14px;
}
.footer-brand__note{font-size:13.5px;line-height:1.8;color:var(--muted);max-width:38ch;margin:0;}

.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact__title{
  font-size:12px;letter-spacing:.22em;font-weight:700;color:var(--cyan);margin:0 0 4px;
}
.footer-contact__item{margin:0;display:flex;gap:12px;flex-wrap:wrap;font-size:14px;line-height:1.6;}
.footer-contact__label{color:var(--muted);min-width:64px;flex:none;}
.footer-contact__value{color:var(--white);word-break:break-all;}
.footer-contact__note{margin:6px 0 0;font-size:12.5px;line-height:1.7;color:var(--muted);max-width:40ch;}

.footer-nav{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;
  padding:34px 0;border-bottom:1px solid var(--ink-700);
}
.footer-nav__col{min-width:0;}
.footer-nav__title{font-size:12px;letter-spacing:.22em;color:var(--cyan);margin:0 0 14px;}
.footer-nav__list{display:flex;flex-direction:column;gap:8px;}
.footer-nav__link{
  display:inline-flex;align-items:center;min-height:32px;
  font-size:14.5px;color:var(--muted);
  transition:color .18s ease,transform .18s ease;
}
.footer-nav__link:hover{color:var(--cyan);transform:translateX(3px);}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;padding-top:22px;
  font-size:13px;color:var(--muted);
}
.footer-legal p{margin:0;}
.footer-legal__icp{letter-spacing:.04em;}
.footer-legal__version a{color:var(--cyan);}
.footer-legal__version a:hover{color:var(--cyan-soft);}

/* ---------- 8. 章节与长卷节奏 ---------- */
.section{padding:clamp(64px,9vw,120px) 0;}
.section--tight{padding:clamp(40px,6vw,72px) 0;}
.section__head{display:flex;align-items:baseline;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.section__index{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:12.5px;letter-spacing:.16em;color:var(--cyan);
  border:1px solid rgba(0,229,192,.4);background:rgba(18,48,58,.6);
  padding:4px 11px;border-radius:999px;
}
.section__title{font-size:clamp(26px,3.4vw,40px);}
.section__lead{font-size:15px;color:var(--muted);max-width:38ch;margin:0;}

.band{height:3px;width:100%;border-radius:2px;background:linear-gradient(90deg,var(--cyan),rgba(0,229,192,0));}
.band--orange{background:linear-gradient(90deg,var(--orange),rgba(255,122,26,0));}
.band--split{background:linear-gradient(90deg,var(--cyan) 0 50%,var(--orange) 50% 100%);}

/* ---------- 9. 网格与非对称分栏 ---------- */
.grid{display:grid;gap:20px;}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--split{grid-template-columns:minmax(210px,3fr) minmax(0,9fr);gap:32px;align-items:start;}

/* ---------- 10. 左侧工具窄栏 ---------- */
.rail{display:flex;flex-direction:column;gap:16px;}
.rail__sticky{position:sticky;top:calc(var(--belt-h) + 20px);display:flex;flex-direction:column;gap:16px;}
.tool-menu{
  border:1px solid var(--ink-700);border-radius:var(--radius);
  background:var(--ink-800);overflow:hidden;
}
.tool-menu__title{
  font-size:12px;letter-spacing:.2em;color:var(--muted);
  padding:14px 16px 10px;margin:0;font-weight:700;
}
.tool-menu__list{display:flex;flex-direction:column;}
.tool-menu__item{border-top:1px solid var(--ink-700);}
.tool-menu__link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:11px 16px;
  font-size:14.5px;color:var(--white);
  transition:background-color .18s ease,color .18s ease;
}
.tool-menu__link:hover{background:var(--ink-700);color:var(--cyan);}

/* ---------- 11. 卡片 ---------- */
.card{
  position:relative;display:block;padding:20px;
  background:var(--ink-800);border:1px solid var(--ink-700);border-radius:var(--radius);
  color:var(--white);
  transition:border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.card::after{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--cyan);opacity:0;transition:opacity .2s ease;
}
.card:hover{border-color:rgba(0,229,192,.5);background:#182029;transform:translateY(-2px);color:var(--white);}
.card:hover::after{opacity:1;}
.card__label{display:block;font-size:12px;letter-spacing:.16em;color:var(--cyan);}
.card__title{font-size:18px;margin:8px 0 6px;}
.card__text{font-size:14px;line-height:1.7;color:var(--muted);margin:0;}
.card--accent{border-color:rgba(255,122,26,.45);}
.card--accent .card__label{color:var(--orange-soft);}
.card--accent::after{background:var(--orange);}

/* ---------- 12. 按钮 / 标签 / 统计 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  border:1px solid var(--ink-700);background:transparent;color:var(--white);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{color:var(--cyan);border-color:rgba(0,229,192,.5);}
.btn--primary{background:var(--orange);border-color:var(--orange);color:var(--ink-900);font-weight:700;}
.btn--primary:hover{background:var(--orange-soft);border-color:var(--orange-soft);color:var(--ink-900);}
.btn--ghost{border-color:rgba(0,229,192,.55);color:var(--cyan);}
.btn--ghost:hover{background:rgba(0,229,192,.12);color:var(--cyan-soft);border-color:var(--cyan);}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.08em;padding:4px 11px;border-radius:999px;
  border:1px solid var(--ink-700);background:var(--ink-800);color:var(--muted);
}
.chip--cyan{border-color:rgba(0,229,192,.45);background:rgba(18,48,58,.65);color:var(--cyan);}
.chip--orange{border-color:rgba(255,122,26,.45);background:rgba(255,122,26,.12);color:var(--orange-soft);}

.stat{display:flex;flex-direction:column;gap:2px;}
.stat__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3.6vw,38px);font-weight:700;line-height:1.1;color:var(--orange);
}
.stat__label{font-size:13px;letter-spacing:.06em;color:var(--muted);}

/* ---------- 13. 正文排版 ---------- */
.prose{max-width:38em;font-size:16.5px;}
.prose p{margin:0 0 1.05em;color:#D6DEE7;}
.prose h2{font-size:22px;margin:1.7em 0 .6em;}
.prose h3{font-size:17px;margin:1.5em 0 .5em;color:var(--cyan-soft);}
.prose ul{margin:0 0 1.1em;}
.prose li{position:relative;padding-left:18px;margin-bottom:.5em;color:#C9D3DD;}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:9px;height:1px;background:var(--cyan);}

/* ---------- 14. 面包屑 ---------- */
.breadcrumb{margin:26px 0 0;}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb__item{display:flex;align-items:center;gap:8px;}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--ink-600);}
.breadcrumb__link{color:var(--muted);}
.breadcrumb__link:hover{color:var(--cyan);}
.breadcrumb__current{color:var(--white);}

/* ---------- 15. 图片容器（页面阶段放图） ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 9;width:100%;
  border:1px solid var(--ink-700);border-radius:var(--radius);
  background-color:var(--ink-800);
  background-image:repeating-linear-gradient(135deg,rgba(31,40,51,.95) 0 12px,rgba(20,26,34,.95) 12px 24px);
}
.media-frame__img{width:100%;height:100%;object-fit:cover;}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 14px 12px;font-size:12.5px;line-height:1.6;color:var(--white);
  background:linear-gradient(0deg,rgba(11,14,18,.92),rgba(11,14,18,0));
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:4 / 5;}
.media-frame--tilt{clip-path:polygon(0 0,100% 4%,100% 100%,0 96%);}

/* ---------- 16. 滚动显现 ---------- */
[data-reveal]{transition:opacity .5s ease,transform .5s ease;}
html[data-js="on"] [data-reveal]{opacity:0;transform:translateY(12px);}
html[data-js="on"] [data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- 17. 响应式 ---------- */
@media (max-width:1000px){
  .grid--split{grid-template-columns:1fr;}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rail__sticky{position:static;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
}

@media (max-width:860px){
  :root{--belt-h:58px;}
  .masthead{padding:22px 0 0;}
  .masthead__inner::before,
  .masthead__inner::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    margin-top:14px;border-top-color:transparent;
    max-height:0;overflow:hidden;
    transition:max-height .3s ease,border-color .3s ease;
  }
  .site-nav[data-open="true"]{
    max-height:80vh;overflow-y:auto;
    border-top-color:var(--ink-700);
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 20px;}
  .site-nav__item{display:block;}
  .site-nav__link{justify-content:center;border-radius:12px;background:var(--ink-800);}
  .site-footer{margin-top:64px;}
  .footer-nav{grid-template-columns:1fr;gap:24px;padding:28px 0;}
}

@media (max-width:640px){
  body{font-size:15.5px;}
  .shell{padding-inline:16px;}
  .topbelt__inner{padding-inline:16px;}
  .live-capsule{padding:6px 12px;gap:6px;font-size:12.5px;}
  .live-capsule__unit,
  .live-capsule__sep{display:none;}
  .subscribe-toggle{min-height:38px;padding:6px 14px;font-size:13px;}
  .grid--2,.grid--3{grid-template-columns:1fr;}
  .site-footer__inner{padding:44px 16px 22px;}
  .footer-legal{flex-direction:column;align-items:flex-start;}
  .media-frame--tilt{clip-path:none;}
}

/* ---------- 18. 动效可访问性 ---------- */
@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[data-js="on"] [data-reveal]{opacity:1;transform:none;}
  .live-capsule__dot{box-shadow:none;}
  .footer-nav__link:hover{transform:none;}
  .card:hover{transform:none;}
}