/* ==========================================================
   必一体育 · 共享站点样式 /assets/site.css
   暗场记分牌体系：左轨导航 + 频道横条 + 硬边数据模块
   ========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#061713;
  --ink-2:#0C2B23;
  --ink-3:#123B30;
  --cyan:#39F3CE;
  --amber:#FFB13B;
  --blue:#67B7FF;
  --wine:#5A2030;
  --indigo:#241B4D;
  --paper:#F2F7F3;
  --muted:#9DB7AD;
  --line:#314A42;

  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Bebas Neue","DIN Condensed","Roboto Mono",ui-monospace,"Courier New",monospace;

  --rail-w:248px;
  --topbar-h:60px;
  --gutter:clamp(16px,3vw,40px);
  --maxw:1440px;
  --radius:3px;
  --shadow-hard:4px 4px 0 rgba(2,10,8,.55);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:24px}
body,h1,h2,h3,h4,h5,p,figure,blockquote,ol,ul,dl,dd{margin:0}
ol[class],ul[class]{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
hr{border:0}

/* ---------- 3. 基础与中文排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 520px at 82% -8%,rgba(57,243,206,.08),transparent 62%),
    radial-gradient(760px 460px at 4% 104%,rgba(103,183,255,.07),transparent 66%);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1025px){
  body{padding-left:var(--rail-w)}
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.12;letter-spacing:-.01em;color:var(--paper)}
h1{font-size:clamp(2.6rem,6vw,5.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.5rem)}
p{max-width:72ch}

::selection{background:var(--cyan);color:var(--ink)}

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

/* ---------- 4. 通用内容组件 ---------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(36px,6vw,88px)}
.rule{height:1px;background:var(--line);width:100%}

.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--cyan);
}
.kicker::before{content:"";width:20px;height:2px;background:var(--amber);flex:none}

.prose{max-width:70ch;font-size:17px;line-height:1.8;color:var(--paper)}
.prose p + p{margin-top:1em}

.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--bento{grid-template-columns:repeat(12,minmax(0,1fr))}

.card{
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(16px,2vw,24px);
  box-shadow:var(--shadow-hard);
}
.card--accent{border-color:rgba(57,243,206,.42)}

.score{
  font-family:var(--font-num);
  font-size:clamp(3rem,9vw,8rem);
  line-height:.82;
  letter-spacing:.04em;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
}

.breadcrumb{font-size:12.5px;color:var(--muted);letter-spacing:.04em}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line);margin-right:0}
.breadcrumb__link{color:var(--muted);transition:color .18s ease-out}
.breadcrumb__link:hover{color:var(--cyan)}

.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;
  background:linear-gradient(150deg,var(--ink-3),var(--indigo));
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__tag{
  position:absolute;left:0;bottom:0;
  padding:6px 12px;
  background:var(--ink);color:var(--cyan);
  font-family:var(--font-num);font-size:12px;letter-spacing:.16em;
  border-top:1px solid var(--line);border-right:1px solid var(--line);
}
@media (max-width:640px){
  .media-frame{aspect-ratio:16/11}
  .media-frame--wide{aspect-ratio:16/9}
  .media-frame--tall{aspect-ratio:4/5}
}

.visually-hidden{
  position:absolute!important;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 16px;
  font-family:var(--font-display);font-weight:800;font-size:15px;letter-spacing:.05em;
  border:1px solid var(--line);border-radius:2px;
  transition:transform .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.btn--primary{
  background:var(--cyan);color:var(--ink);border-color:var(--cyan);
  box-shadow:var(--shadow-hard);
}
.btn--primary:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(2,10,8,.6)}
.btn--primary:active{transform:translate(0,0);box-shadow:2px 2px 0 rgba(2,10,8,.6)}
.btn--ghost{background:transparent;color:var(--paper);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- 6. 跳转链接 ---------- */
.skip-link{
  position:fixed;top:-120px;left:12px;z-index:999;
  padding:10px 18px;
  background:var(--cyan);color:var(--ink);
  font-weight:700;font-size:14px;border-radius:2px;
  transition:top .18s ease-out;
}
.skip-link:focus{top:12px}

/* ---------- 7. 头部：顶部细条（移动端） ---------- */
.site-header{position:relative;z-index:100}

.topbar{display:none}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar__brand{display:flex;align-items:center;gap:10px}
.topbar__mark{
  display:grid;place-items:center;
  width:32px;height:32px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-num);font-size:15px;letter-spacing:.06em;
}
.topbar__name{font-family:var(--font-display);font-weight:900;font-size:18px;letter-spacing:.02em}

.nav-toggle{
  display:flex;align-items:center;gap:9px;
  padding:8px 12px;
  border:1px solid var(--line);border-radius:2px;
  color:var(--paper);font-size:13px;letter-spacing:.08em;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:3px;width:18px}
.nav-toggle__bars i{display:block;height:2px;background:currentColor;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-toggle__label{font-family:var(--font-num);letter-spacing:.14em}

/* ---------- 8. 头部：左侧轨道导航 ---------- */
.site-rail{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--rail-w);
  background:var(--ink-2);
  border-right:1px solid var(--line);
  overflow-y:auto;overscroll-behavior:contain;
  z-index:120;
  padding:20px 0 16px;
  transform:translateX(-104%);
  transition:transform .26s ease-out,visibility .26s ease-out;
  visibility:hidden;
}
.site-rail[data-open]{transform:translateX(0);visibility:visible}

.rail__close{
  position:absolute;top:12px;right:12px;
  padding:6px 12px;
  border:1px solid var(--line);border-radius:2px;
  font-size:12px;letter-spacing:.12em;color:var(--muted);
}
.rail__close:hover{border-color:var(--cyan);color:var(--cyan)}

.rail__inner{
  display:flex;flex-direction:column;
  min-height:100%;
  padding:0 16px;
  gap:20px;
}

.rail__brand{
  display:grid;grid-template-columns:auto 1fr;align-items:center;
  gap:10px 12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.rail__mark{
  display:grid;place-items:center;
  width:44px;height:44px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-num);font-size:19px;letter-spacing:.06em;
  box-shadow:4px 4px 0 var(--indigo);
}
.rail__wordmark{font-family:var(--font-display);font-weight:900;font-size:22px;letter-spacing:.02em}
.rail__line{grid-column:1 / -1;font-size:12px;letter-spacing:.06em;color:var(--muted)}

.rail__nav{flex:0 0 auto}
.nav-list{display:flex;flex-direction:column;gap:2px}
.nav-list__item{display:block}
.nav-link{
  display:flex;align-items:center;gap:12px;
  padding:9px 10px;
  border-left:2px solid transparent;
  color:var(--muted);font-size:15px;line-height:1.4;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.nav-link__idx{font-family:var(--font-num);font-size:12px;letter-spacing:.12em;color:var(--line);transition:color .18s ease-out}
.nav-link__txt{font-weight:500}
.nav-link:hover{color:var(--paper);background:var(--ink-3)}
.nav-link:hover .nav-link__idx{color:var(--cyan)}
.nav-link[aria-current="page"]{
  color:var(--ink);
  background:var(--cyan);
  border-left-color:var(--amber);
  font-weight:700;
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--ink-2)}

.rail__cta{display:grid;gap:8px}
.rail__cta .btn{width:100%}

.rail__utility{
  display:flex;flex-wrap:wrap;gap:6px 14px;
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12px;
}
.utility-link{color:var(--muted);letter-spacing:.04em;transition:color .18s ease-out}
.utility-link:hover{color:var(--cyan)}
.rail__stamp{
  width:100%;
  font-family:var(--font-num);font-size:11px;letter-spacing:.14em;color:var(--line);
}

/* ---------- 9. 遮罩 ---------- */
.nav-scrim{
  position:fixed;inset:0;
  z-index:110;
  display:none;
  background:rgba(3,10,8,.74);
  opacity:0;pointer-events:none;
  transition:opacity .24s ease-out;
}
.nav-scrim[data-show]{opacity:1;pointer-events:auto}

/* ---------- 10. 赛事频道横条 ---------- */
.channelbar{background:var(--ink-3);border-bottom:1px solid var(--line)}
.channelbar__inner{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:8px clamp(10px,2vw,24px);
  min-height:48px;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:6px var(--gutter);
}
.channelbar__label{
  font-family:var(--font-num);font-size:12px;letter-spacing:.2em;
  color:var(--cyan);
  padding-right:clamp(10px,2vw,22px);
  border-right:1px solid var(--line);
}
.channel-list{display:flex;flex-wrap:wrap;gap:4px}
.channel-list__item{display:block}
.channel-item{
  display:inline-block;
  padding:5px 12px;
  font-size:13px;letter-spacing:.06em;
  color:var(--muted);
  border:1px solid transparent;border-radius:2px;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.channel-item:hover{color:var(--paper);background:var(--ink-2);border-color:var(--line)}
.channel-item[aria-current="page"]{
  color:var(--ink);background:var(--amber);border-color:var(--amber);font-weight:700;
}
.channelbar__meta{
  margin-left:auto;
  font-family:var(--font-num);font-size:12px;letter-spacing:.16em;color:var(--muted);
}

/* ---------- 11. 页脚 ---------- */
.site-footer{
  margin-top:clamp(40px,7vw,96px);
  background:var(--ink-2);
  border-top:1px solid var(--line);
}

.foot-marquee{
  overflow:hidden;
  background:var(--cyan);color:var(--ink);
  border-bottom:1px solid #08201a;
}
.foot-marquee__track{
  display:flex;align-items:center;gap:34px;
  width:max-content;
  padding:9px 0 9px 34px;
  font-family:var(--font-display);font-weight:800;font-size:13px;letter-spacing:.18em;
  animation:bs-marquee 30s linear infinite;
}
.foot-marquee__track span{white-space:nowrap}
@keyframes bs-marquee{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-50%,0,0)}
}

.foot-main{
  display:grid;
  grid-template-columns:1.6fr .8fr .8fr 1.25fr;
  gap:clamp(24px,3vw,52px);
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(34px,5vw,68px) var(--gutter) clamp(28px,4vw,46px);
}

.foot-brand{display:block}
.foot-mark{
  display:inline-grid;place-items:center;
  width:44px;height:44px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-num);font-size:20px;letter-spacing:.06em;
  box-shadow:4px 4px 0 var(--indigo);
  margin-bottom:16px;
}
.foot-wordmark{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(2rem,4vw,3rem);line-height:.94;letter-spacing:-.01em;
}
.foot-tagline{font-size:13px;letter-spacing:.08em;color:var(--muted);margin-top:10px}
.foot-feedback{margin-top:18px}
.foot-note{
  margin-top:12px;
  font-size:12px;line-height:1.7;color:var(--muted);
  max-width:36ch;
}

.foot-col__title{
  font-family:var(--font-num);font-weight:400;
  font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:12px;
  padding-bottom:8px;
  border-bottom:1px solid var(--line);
}
.foot-list{display:flex;flex-direction:column;gap:2px}
.foot-link{
  display:inline-block;
  padding:5px 0;
  font-size:15px;color:var(--muted);
  text-decoration:underline;
  text-decoration-color:transparent;
  text-underline-offset:4px;
  transition:color .18s ease-out,text-decoration-color .18s ease-out;
}
.foot-link:hover{color:var(--cyan);text-decoration-color:var(--cyan)}
.foot-link--sm{font-size:12.5px;padding:2px 0}

.foot-contact__row{
  display:grid;gap:2px;
  padding:9px 0;
  border-bottom:1px solid rgba(49,74,66,.55);
}
.foot-contact__k{font-family:var(--font-num);font-size:11px;letter-spacing:.18em;color:var(--muted)}
.foot-contact__v{font-size:13.5px;line-height:1.65;color:var(--paper);word-break:break-word}
.foot-contact__v--num{font-family:var(--font-num);font-size:19px;letter-spacing:.08em;color:var(--amber)}

.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;
  padding:16px var(--gutter);
  border-top:1px solid var(--line);
  background:var(--ink);
  font-size:12.5px;color:var(--muted);
}
.foot-copy{letter-spacing:.04em}
.foot-legal{font-family:var(--font-num);letter-spacing:.14em;color:var(--line)}
.foot-legalnav{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}

/* ---------- 12. JS 生成元素 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;
  z-index:200;
  background:linear-gradient(90deg,var(--cyan),var(--blue));
  transform:scaleX(0);transform-origin:0 50%;
  pointer-events:none;
}
@media (min-width:1025px){
  .scroll-progress{left:var(--rail-w)}
}

.to-top{
  position:fixed;
  right:clamp(12px,2vw,26px);
  bottom:clamp(12px,2vw,26px);
  z-index:150;
  display:flex;align-items:center;gap:7px;
  padding:10px 14px;
  background:var(--ink-2);color:var(--cyan);
  border:1px solid var(--line);border-radius:2px;
  font-family:var(--font-num);font-size:13px;letter-spacing:.16em;
  box-shadow:0 6px 0 rgba(2,10,8,.45);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.to-top[data-show]{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{border-color:var(--cyan)}
.to-top__txt{letter-spacing:.18em}

/* ---------- 13. 滚动显现 ---------- */
html.js-reveal [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .34s ease-out,transform .34s ease-out;
}
html.js-reveal [data-reveal][data-revealed]{opacity:1;transform:none}

/* ---------- 14. 响应式 ---------- */
@media (min-width:1025px){
  .site-rail{
    transform:none;
    visibility:visible;
    padding-top:24px;
  }
  .rail__close{display:none}
  .nav-scrim{display:none}
}

@media (max-width:1024px){
  .topbar{
    display:block;
    background:var(--ink-2);
    border-bottom:1px solid var(--line);
  }
  .topbar__inner{
    height:var(--topbar-h);
    max-width:var(--maxw);
    margin-inline:auto;
    padding:0 var(--gutter);
  }
  .site-rail{
    width:min(86vw,320px);
    padding-top:56px;
    box-shadow:14px 0 44px rgba(0,0,0,.6);
  }
  .nav-scrim{display:block}
  .channelbar__meta{display:none}
  .foot-main{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1 / -1}
}

@media (max-width:860px){
  .foot-bottom{align-items:flex-start;flex-direction:column}
  .foot-legalnav{margin-left:0}
}

@media (max-width:600px){
  body{line-height:1.72}
  .foot-main{grid-template-columns:1fr}
  .channelbar__label{padding-right:10px;letter-spacing:.14em}
  .channel-item{padding:5px 9px;font-size:12.5px}
  .foot-wordmark{font-size:2rem}
  .to-top{padding:9px 12px}
}

/* ---------- 15. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .foot-marquee__track{animation:none!important}
  html.js-reveal [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  .to-top{transform:none}
}