/* ============================================================
   威体育服务认证中心 · 共享站点样式  /assets/site.css
   覆盖：reset / 令牌 / 中文排版 / 头部 / 页脚 / 通用组件 / 响应式
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-900:#05140F;
  --ink-800:#0B2B22;
  --ink-700:#123D30;
  --line:#1E4A3C;
  --cyan:#35F2C8;
  --cyan-2:#1FA88A;
  --yellow:#FFD24A;
  --red:#FF4D5E;
  --paper:#F2F7F4;
  --paper-2:#C7D8D2;
  --muted:#8FA8A0;
  --maxw:1360px;
  --pad:clamp(16px,4vw,48px);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background-color:var(--ink-900);}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,picture,svg,video{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}

/* ---------- 3. 基础排版与底纹 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--ink-900);
  background-image:
    linear-gradient(rgba(30,74,60,.32) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,74,60,.24) 1px,transparent 1px),
    radial-gradient(120% 80% at 8% -12%,rgba(53,242,200,.11),transparent 62%),
    radial-gradient(90% 70% at 100% 0%,rgba(31,168,138,.09),transparent 58%);
  background-size:64px 64px,64px 64px,100% 100%,100% 100%;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{line-height:1.2;font-weight:800;letter-spacing:.04em;}
strong{color:var(--paper);}
#main-content{scroll-margin-top:96px;}
::selection{background:var(--cyan);color:#04211A;}

/* ---------- 4. 布局骨架 ---------- */
.container{width:min(calc(100% - (var(--pad) * 2)),var(--maxw));margin-inline:auto;}
.section{padding-block:clamp(36px,5.5vw,78px);}
.section + .section{border-top:1px solid rgba(30,74,60,.7);}
.section__head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(20px,3vw,36px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  color:var(--cyan);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);}
.section-title{font-size:clamp(26px,3.4vw,46px);line-height:1.14;color:var(--paper);}
.lede{font-size:17px;line-height:1.8;color:var(--paper-2);max-width:62ch;}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,28px);}
.col-note{grid-column:span 4;}
.col-main{grid-column:span 8;}
.col-6{grid-column:span 6;}
.col-12{grid-column:1 / -1;}

/* ---------- 5. 按钮 / 标签 / 面包屑 ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;font-size:14px;font-weight:600;letter-spacing:.06em;
  color:var(--paper);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,61,48,.92),rgba(11,43,34,.92));
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.btn::after{
  content:"";position:absolute;top:0;right:0;width:9px;height:9px;
  background:linear-gradient(135deg,transparent 46%,currentColor 46%);opacity:.7;
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#04211A;font-weight:700;}
.btn--primary:hover{background:#5CFAD6;border-color:#5CFAD6;color:#04211A;}
.btn--ghost{background:transparent;}

.tag{
  display:inline-flex;align-items:center;gap:6px;padding:3px 9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--muted);border:1px solid var(--line);background:rgba(18,61,48,.6);
}
.tag--cyan{color:var(--cyan);border-color:rgba(53,242,200,.45);}
.tag--yellow{color:var(--yellow);border-color:rgba(255,210,74,.45);}
.tag--red{color:var(--red);border-color:rgba(255,77,94,.45);}

.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;color:var(--muted);
}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumbs__item + .breadcrumbs__item::before{content:"/";color:var(--line);}
.breadcrumbs__item a:hover{color:var(--cyan);}
.breadcrumbs__item[aria-current="page"]{color:var(--paper);}

/* ---------- 6. 内容组件 ---------- */
.paper-card{
  position:relative;padding:clamp(18px,2vw,26px);
  background:linear-gradient(180deg,rgba(11,43,34,.94),rgba(5,20,15,.94));
  border:1px solid var(--line);
  box-shadow:0 20px 44px -30px rgba(0,0,0,.95);
}
.paper-card::before{content:"";position:absolute;inset:5px;border:1px solid rgba(30,74,60,.5);pointer-events:none;}
.paper-card__label{
  position:absolute;top:-11px;left:16px;padding:2px 10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--cyan);background:var(--ink-900);border:1px solid var(--line);
}

.data-strip{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));
  gap:1px;background:var(--line);border-block:1px solid var(--line);
  margin-block:clamp(26px,4vw,52px);
}
.data-strip__item{
  display:flex;flex-direction:column;gap:6px;padding:18px 20px;
  background:linear-gradient(180deg,rgba(18,61,48,.88),rgba(5,20,15,.96));
}
.data-strip__value{
  font-family:var(--font-mono);font-size:clamp(28px,3vw,40px);line-height:1;
  color:var(--cyan);font-variant-numeric:tabular-nums;
}
.data-strip__label{font-size:13px;letter-spacing:.04em;color:var(--muted);}

.stat{display:flex;flex-direction:column;gap:4px;}
.stat__value{font-family:var(--font-mono);font-size:clamp(26px,3vw,36px);color:var(--paper);font-variant-numeric:tabular-nums;}
.stat__label{font-size:13px;color:var(--muted);}

.rule-note{
  padding:14px 16px;border-left:3px solid var(--yellow);
  background:rgba(255,210,74,.06);font-size:14px;color:var(--paper-2);
}

.panel{border:1px solid var(--line);background:rgba(11,43,34,.6);}
.panel__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;
}
.panel__body{padding:16px;}

.accordion{border:1px solid var(--line);background:rgba(11,43,34,.55);}
.accordion__item + .accordion__item{border-top:1px solid var(--line);}
.accordion__trigger{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;text-align:left;font-size:16px;font-weight:600;color:var(--paper);
  transition:color .18s var(--ease);
}
.accordion__trigger:hover{color:var(--cyan);}
.accordion__trigger::after{
  content:"+";flex:0 0 auto;font-family:var(--font-mono);font-size:18px;
  color:var(--cyan);transition:transform .18s var(--ease);
}
.accordion__trigger[aria-expanded="true"]::after{transform:rotate(45deg);}
.accordion__panel{padding:0 18px 18px;font-size:15px;color:var(--paper-2);}
.accordion__panel[hidden]{display:none;}

.league-rail{display:flex;flex-direction:column;gap:6px;}
.league-rail__btn{
  display:flex;justify-content:space-between;gap:10px;width:100%;
  padding:10px 12px;font-size:14px;text-align:left;color:var(--muted);
  border:1px solid transparent;background:rgba(18,61,48,.38);
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.league-rail__btn:hover{color:var(--paper);border-color:var(--line);}
.league-rail__btn[data-active]{color:var(--ink-900);background:var(--cyan);border-color:var(--cyan);font-weight:700;}

/* ---------- 7. 图片容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:16 / 9;
  border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 18% 0%,rgba(53,242,200,.14),transparent 62%),
    linear-gradient(180deg,rgba(18,61,48,.9),rgba(5,20,15,.96));
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--square{aspect-ratio:1 / 1;}
.media-frame--tall{aspect-ratio:4 / 5;}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover;}
.media-frame__caption{
  position:absolute;left:0;bottom:0;padding:8px 12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--paper);
  background:rgba(5,20,15,.8);border-top:1px solid var(--line);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg,var(--cyan) 0 20px,transparent 20px) left top / 100% 2px no-repeat,
    linear-gradient(180deg,var(--cyan) 0 20px,transparent 20px) left top / 2px 100% no-repeat;
  opacity:.85;
}

/* ---------- 8. 工具类 ---------- */
.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:12px;top:-64px;z-index:200;
  padding:10px 16px;font-size:14px;font-weight:700;
  color:#04211A;background:var(--cyan);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px;}

[data-reveal]{
  opacity:0;transform:translate3d(-16px,12px,0);
  transition:opacity .45s var(--ease),transform .45s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none;}
[data-filtered-out]{display:none !important;}

/* ---------- 9. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,20,15,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-2) 38%,transparent 78%);
}
.site-header__grid{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:12px 22px;padding-block:12px;
}

.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand__link{display:flex;align-items:center;gap:12px;min-width:0;}
.brand__mark{
  position:relative;flex:0 0 auto;width:36px;height:36px;
  background:linear-gradient(140deg,var(--cyan),var(--cyan-2) 55%,var(--ink-700));
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand__mark::before{
  content:"";position:absolute;left:7px;right:7px;top:10px;height:2px;
  background:var(--ink-900);opacity:.55;
}
.brand__mark::after{
  content:"";position:absolute;left:7px;right:7px;top:17px;height:2px;
  background:var(--ink-900);opacity:.85;
}
.brand__text{display:flex;flex-direction:column;min-width:0;}
.brand__name{font-size:17px;font-weight:800;letter-spacing:.05em;color:var(--paper);white-space:nowrap;}
.brand__meta{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);white-space:nowrap;
}
.brand__badge{
  align-self:center;padding:2px 7px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--yellow);border:1px solid rgba(255,210,74,.5);background:rgba(255,210,74,.08);
}

.header-tools{display:flex;align-items:center;gap:8px;justify-self:center;min-width:0;}
.season-chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 12px;
  font-size:12.5px;color:var(--muted);
  border:1px solid var(--line);background:rgba(11,43,34,.7);white-space:nowrap;
}
.season-chip__dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 4px rgba(53,242,200,.16);
  animation:season-pulse 2.4s infinite;
}
.season-chip__label{font-family:var(--font-mono);letter-spacing:.1em;}
.season-chip__value{color:var(--paper);}
@keyframes season-pulse{50%{box-shadow:0 0 0 8px rgba(53,242,200,0);}}

.chip-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:8px 13px;font-size:13px;letter-spacing:.04em;white-space:nowrap;
  color:var(--paper);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,61,48,.92),rgba(11,43,34,.92));
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.chip-link::after{
  content:"";position:absolute;top:0;right:0;width:8px;height:8px;
  background:linear-gradient(135deg,transparent 46%,currentColor 46%);opacity:.7;
}
.chip-link:hover{border-color:var(--cyan);color:var(--cyan);}
.chip-link--accent{color:#04211A;background:var(--cyan);border-color:var(--cyan);font-weight:700;}
.chip-link--accent:hover{background:#5CFAD6;border-color:#5CFAD6;color:#04211A;}

.nav-toggle{
  display:none;align-items:center;gap:8px;justify-self:end;
  padding:9px 12px;font-size:13px;letter-spacing:.06em;
  color:var(--paper);border:1px solid var(--line);
}
.nav-toggle__bars{position:relative;width:18px;height:12px;}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:2px;background:var(--cyan);
  transition:transform .2s var(--ease);
}
.nav-toggle__bars::before{top:0;}
.nav-toggle__bars::after{bottom:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg);}

.site-nav{justify-self:end;min-width:0;}
.site-nav__list{display:flex;align-items:center;gap:2px;}
.site-nav__link{
  position:relative;display:block;padding:9px 12px;
  font-size:14px;letter-spacing:.02em;color:var(--paper-2);
  transition:color .18s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.site-nav__link:hover{color:var(--paper);}
.site-nav__link:hover::after{transform:scaleX(1);}
.site-nav__link[aria-current="page"]{color:var(--cyan);}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;}
.scroll-progress__bar{
  display:block;height:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--yellow));
}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:
    radial-gradient(90% 120% at 100% 0%,rgba(31,168,138,.13),transparent 62%),
    linear-gradient(180deg,rgba(11,43,34,.78),rgba(5,20,15,1));
}
.site-footer__grid{
  display:grid;
  grid-template-columns:minmax(240px,1.4fr) repeat(4,minmax(140px,1fr));
  gap:clamp(24px,3vw,44px);
  padding-block:clamp(40px,6vw,72px) clamp(28px,4vw,48px);
}
.site-footer__brand{display:flex;flex-direction:column;gap:14px;min-width:0;}
.site-footer__brand .brand__mark{width:32px;height:32px;}
.footer-tagline{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;color:var(--cyan);}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--paper-2);}
.footer-contact__row{display:flex;align-items:flex-start;gap:10px;}
.footer-contact__key{
  flex:0 0 auto;min-width:34px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;color:var(--muted);
}
.footer-note{font-size:12.5px;line-height:1.7;color:var(--muted);max-width:40ch;}

.footer-block{display:flex;flex-direction:column;gap:14px;min-width:0;}
.footer-block__title{
  font-family:var(--font-mono);font-size:12px;font-weight:600;
  letter-spacing:.16em;color:var(--paper);text-transform:uppercase;
}
.footer-block__title::after{content:"";display:block;width:26px;height:2px;margin-top:8px;background:var(--cyan);}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-link{
  font-size:14px;color:var(--muted);
  transition:color .18s var(--ease);
}
.footer-link:hover{color:var(--cyan);}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 22px;padding-block:20px 28px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--muted);
}
.footer-legal__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1080px){
  .site-header__grid{grid-template-columns:minmax(0,1fr) auto;row-gap:10px;}
  .nav-toggle{display:inline-flex;}
  .header-tools{
    grid-column:1 / -1;grid-row:2;justify-self:start;
    max-width:100%;overflow-x:auto;padding-bottom:4px;
  }
  .site-nav{
    grid-column:1 / -1;grid-row:3;justify-self:stretch;display:block;
    max-height:0;overflow:hidden;opacity:0;visibility:hidden;
    transition:max-height .3s var(--ease),opacity .2s var(--ease),visibility .2s var(--ease);
  }
  .site-nav[data-open="true"]{max-height:min(72vh,520px);overflow-y:auto;opacity:1;visibility:visible;}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;border-top:1px solid var(--line);}
  .site-nav__item + .site-nav__item{border-top:1px solid rgba(30,74,60,.6);}
  .site-nav__link{padding:14px 12px;font-size:16px;color:var(--paper-2);}
  .site-nav__link::after{display:none;}
  .site-nav__link:hover{background:rgba(18,61,48,.55);color:var(--paper);}
  .site-nav__link[aria-current="page"]{
    color:var(--cyan);background:rgba(53,242,200,.07);
    box-shadow:inset 3px 0 0 var(--cyan);
  }
  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:960px){
  .col-note,.col-main,.col-6{grid-column:1 / -1;}
  .league-rail{flex-direction:row;overflow-x:auto;padding-bottom:6px;}
  .league-rail__btn{width:auto;white-space:nowrap;}
}

@media (max-width:720px){
  body{font-size:15.5px;}
  .brand__name{font-size:15.5px;white-space:normal;}
  .brand__meta{display:none;}
  .season-chip{padding:6px 10px;}
  .site-footer__grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-legal{flex-direction:column;align-items:flex-start;}
  .data-strip{grid-template-columns:repeat(auto-fit,minmax(132px,1fr));}
}

/* ---------- 12. 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;
  }
  [data-reveal]{opacity:1;transform:none;}
  .scroll-progress__bar{transform:scaleX(0);}
}