/* ============================================================
   壹趣体育CN · site.css
   夜墨绿控制台：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

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

/* ---------- 变量 ---------- */
:root{
  --ink:#05130F;
  --ink-2:#0B2A21;
  --pine:#17453A;
  --pulse:#FF5A1F;
  --pulse-soft:#FF8F4D;
  --cyan:#2BF0C4;
  --mist:#C9FFEA;
  --fog:#F2F6F1;
  --sage:#9FB3A9;
  --volt:#D9FF4A;

  --font-display:"Helvetica Neue","Arial Narrow","PingFang SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif CJK SC",Georgia,serif;

  --gutter:clamp(16px,4vw,40px);
  --maxw:1280px;
  --radius-soft:28px;
  --radius-hard:4px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --ring:3px solid var(--pulse);
}

/* ---------- 中文排版基线 ---------- */
body{
  background:var(--ink);
  color:var(--fog);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(520px 320px at 12% -6%, rgba(43,240,196,.07), transparent 70%),
    radial-gradient(680px 400px at 92% 4%, rgba(255,90,31,.08), transparent 72%);
}
:focus-visible{outline:var(--ring);outline-offset:2px;border-radius:2px}
::selection{background:var(--pulse);color:var(--ink)}

.display-xl,.display-lg,.display-md{
  font-family:var(--font-display);
  font-weight:900;
  font-stretch:90%;
  letter-spacing:-.02em;
  line-height:.94;
  color:var(--fog);
}
.display-xl{font-size:clamp(64px,14vw,160px);line-height:.84}
.display-lg{font-size:clamp(40px,7vw,96px)}
.display-md{font-size:clamp(26px,3.6vw,40px);line-height:1.05}

.lede{
  font-size:clamp(17px,1.6vw,21px);
  line-height:1.7;
  color:var(--mist);
  max-width:34em;
}
.prose{max-width:640px;line-height:1.9;color:var(--fog)}
.prose p+p{margin-top:1em}
.prose h3{margin-top:1.6em;margin-bottom:.5em;font-size:22px;font-weight:800;letter-spacing:-.01em}
.prose a{border-bottom:1px solid rgba(43,240,196,.55);color:var(--cyan);transition:border-color 160ms var(--ease)}
.prose a:hover{border-bottom-width:2px}
.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--sage);
}

/* ---------- 容器 / 网格 ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
  position:relative;
  z-index:1;
}
.section{padding-block:clamp(48px,7vw,96px)}
.section-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:clamp(24px,3vw,40px);
}
.divider{height:1px;background:var(--pine);margin-block:clamp(24px,4vw,48px)}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.lattice{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(12px,1.6vw,20px)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:8px;
  z-index:120;
  transform:translateY(-180%);
  background:var(--pulse);
  color:var(--ink);
  font-weight:800;
  font-size:14px;
  padding:10px 18px;
  border-radius:var(--radius-hard);
  transition:transform 160ms var(--ease);
}
.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink);
  border-bottom:1px solid var(--pine);
}
.header-bar{background:var(--ink)}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:6px 2px;
  position:relative;
  z-index:0;
  flex:none;
}
.brand-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(43,240,196,.18);
  flex:none;
}
.brand-name{
  font-family:var(--font-display);
  font-weight:900;
  font-stretch:90%;
  letter-spacing:-.02em;
  font-size:19px;
  color:var(--fog);
  white-space:nowrap;
}
.brand-meta{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--sage);
  border-left:1px solid var(--pine);
  padding-left:10px;
  white-space:nowrap;
}
.brand:hover .brand-name{color:var(--mist)}
.brand:hover .brand-dot{background:var(--volt)}

/* 主导航 */
.primary-nav{position:static;display:block}
.nav-list{display:flex;align-items:center;gap:clamp(8px,1.6vw,24px)}
.nav-list a{
  position:relative;
  z-index:0;
  display:inline-block;
  padding:8px 8px;
  font-size:15px;
  letter-spacing:.02em;
  color:var(--fog);
  transition:color 180ms var(--ease);
  white-space:nowrap;
}
.nav-list a::before{
  content:"";
  position:absolute;
  inset:2px 0;
  z-index:-1;
  border-radius:2px;
  background:var(--pulse);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 180ms var(--ease);
}
.nav-list a:hover,.nav-list a:focus-visible{color:var(--ink)}
.nav-list a:hover::before,.nav-list a:focus-visible::before{transform:scaleX(1)}
.nav-list a[aria-current="page"]{
  color:var(--pulse);
  font-weight:700;
}
.nav-list a[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:4px;right:4px;bottom:0;
  height:2px;
  background:var(--pulse);
}
.nav-list a[aria-current="page"]:hover{color:var(--ink)}

/* 移动菜单按钮 */
.nav-toggle{display:none}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle-bars span{display:block;height:2px;background:var(--cyan);transition:transform 180ms var(--ease)}
.nav-toggle-label{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em}
.nav-toggle[aria-expanded="true"]{border-color:var(--pulse);color:var(--pulse)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span{background:var(--pulse)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child{transform:translateY(-3px) rotate(-45deg)}

/* 入口提示条 */
.entry-strip{
  background:var(--ink-2);
  border-top:1px solid var(--pine);
  border-bottom:1px solid var(--pine);
}
.entry-strip-inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  max-width:var(--maxw);
  margin-inline:auto;
  min-height:38px;
  padding:5px var(--gutter);
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.entry-strip-inner::-webkit-scrollbar{display:none}
.entry-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:none;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
.entry-tag-idx{
  display:inline-grid;
  place-items:center;
  min-width:24px;
  padding:2px 5px;
  border-radius:2px;
  background:var(--pulse);
  color:var(--ink);
  font-weight:700;
  letter-spacing:.04em;
}
.entry-route{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:none;
  font-size:13px;
}
.entry-route-from{color:var(--sage)}
.entry-arrow{color:var(--pulse);font-family:var(--font-mono)}
.entry-route-to{
  color:var(--cyan);
  font-weight:700;
  border-bottom:1px solid rgba(43,240,196,.5);
  padding-bottom:1px;
}
.entry-actions{display:inline-flex;align-items:center;gap:8px;margin-left:auto;flex:none}

/* 进度轨 */
.scroll-rail{position:relative;height:2px;background:var(--pine);overflow:hidden}
.scroll-rail-fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--pulse),var(--pulse-soft));
}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;
  z-index:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius-hard);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.2;
  overflow:hidden;
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.btn::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:var(--pulse-soft);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 180ms var(--ease);
}
.btn:hover::before,.btn:focus-visible::before{transform:scaleX(1)}
.btn-primary{background:var(--pulse);color:var(--ink)}
.btn-ghost{border-color:var(--pine);color:var(--mist);background:transparent}
.btn-ghost::before{display:none}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--cyan);color:var(--cyan)}
.btn-sm{padding:6px 14px;font-size:13px;font-weight:600}
.btn-block{width:100%}
.copy-path.is-copied{background:var(--cyan);color:var(--ink);border-color:var(--cyan)}
.copy-path.is-copy-failed{background:var(--pine);color:var(--mist);border-color:var(--pulse)}

/* ---------- 展览标签 / 卡片 / 数字 ---------- */
.exhibit-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:5px 12px 5px 6px;
  border:1px solid var(--pine);
  border-radius:var(--radius-hard);
  background:rgba(23,69,58,.5);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}
.exhibit-tag b{
  background:var(--pulse);
  color:var(--ink);
  padding:1px 7px;
  border-radius:2px;
  font-weight:800;
  letter-spacing:.04em;
}

.panel{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--pine);
  border-radius:var(--radius-hard);
  padding:clamp(20px,2.6vw,32px);
  transition:border-color 180ms var(--ease),transform 180ms var(--ease);
}
.panel:hover{border-color:var(--pulse)}
.panel--soft{border-radius:var(--radius-soft)}
.panel--solid{
  background:var(--pulse);
  border-color:transparent;
  border-radius:var(--radius-soft);
  color:var(--ink);
}
.panel--solid:hover{border-color:transparent}
.panel--solid .eyebrow,.panel--solid .footer-kicker{color:rgba(5,19,15,.7)}
.panel--solid a{border-bottom:1px solid rgba(5,19,15,.5)}
.panel--solid a:hover{color:var(--ink);border-bottom-width:2px}

.score-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--volt);
  line-height:1;
}
.score-num--pulse{color:var(--pulse)}
.score-num--cyan{color:var(--cyan)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-soft);
  border:1px solid var(--pine);
  background:var(--ink-2);
  aspect-ratio:16/10;
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(5,19,15,0) 46%,rgba(5,19,15,.74));
}
.media-frame--hard{border-radius:var(--radius-hard)}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--wide{aspect-ratio:21/9}

/* ---------- 数据带 / 时间轴 ---------- */
.data-ribbon{
  display:flex;
  gap:clamp(12px,1.6vw,20px);
  overflow-x:auto;
  padding-bottom:14px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  scrollbar-color:var(--pine) transparent;
}
.data-ribbon > *{flex:0 0 auto;scroll-snap-align:start}
.data-ribbon::-webkit-scrollbar{height:6px}
.data-ribbon::-webkit-scrollbar-track{background:var(--ink-2)}
.data-ribbon::-webkit-scrollbar-thumb{background:var(--pine)}

.timeline{
  display:flex;
  overflow-x:auto;
  border-top:2px solid var(--pine);
  padding-bottom:12px;
  scrollbar-width:thin;
  scrollbar-color:var(--pine) transparent;
}
.timeline-item{
  position:relative;
  flex:0 0 clamp(170px,22vw,230px);
  padding:26px 18px 4px 0;
  border-right:1px solid var(--pine);
}
.timeline-item::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:2px;height:10px;
  background:var(--pulse);
}
.timeline-year{
  font-family:var(--font-serif);
  font-weight:300;
  font-size:22px;
  letter-spacing:.02em;
  color:var(--mist);
  margin-bottom:6px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--sage);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--pine)}
.breadcrumb a{color:var(--mist);border-bottom:1px solid transparent;transition:color 160ms var(--ease),border-color 160ms var(--ease)}
.breadcrumb a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--pulse)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,110px);
  background:var(--ink-2);
  border-top:2px solid var(--pulse);
}
.footer-inner{
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr;
  gap:clamp(24px,4vw,56px);
}
.footer-kicker{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:14px;
}
.footer-title{
  font-family:var(--font-display);
  font-weight:900;
  font-stretch:90%;
  letter-spacing:-.02em;
  font-size:clamp(24px,3vw,34px);
  line-height:1.08;
  color:var(--fog);
  margin-bottom:18px;
}
.compat-list{display:grid;gap:10px;margin-bottom:20px}
.compat-list li{
  display:flex;
  gap:12px;
  font-size:14px;
  line-height:1.7;
  color:var(--sage);
}
.compat-idx{
  flex:none;
  padding-top:3px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--pulse);
}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px}
.footer-links a{
  display:inline-block;
  font-size:14px;
  color:var(--fog);
  border-bottom:1px solid transparent;
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan)}
.contact-list{display:grid;gap:10px}
.contact-list li{display:grid;grid-template-columns:52px 1fr;gap:10px;font-size:14px;line-height:1.65}
.contact-key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--sage);
  padding-top:3px;
}
.contact-val{color:var(--fog);overflow-wrap:anywhere}
.footer-note{
  margin-top:16px;
  padding-left:12px;
  border-left:2px solid var(--pine);
  font-size:12.5px;
  line-height:1.7;
  color:var(--sage);
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:clamp(28px,4vw,48px);
  padding-top:18px;
  border-top:1px solid var(--pine);
}
.legal-line{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:12.5px;
  color:var(--sage);
}
.legal-icp{font-family:var(--font-mono);letter-spacing:.06em;color:var(--mist)}
.legal-dot{width:5px;height:5px;border-radius:50%;background:var(--pulse);flex:none}
.footer-mark{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--sage);
}

/* ---------- 显现 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 480ms var(--ease),transform 480ms var(--ease);
}
.js [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-compat{grid-column:1 / -1}
  .span-3{grid-column:span 6}
  .span-4{grid-column:span 6}
  .span-8{grid-column:span 12}
}

/* ---------- 移动 ---------- */
@media (max-width:900px){
  body{font-size:16px}
  .header-inner{min-height:60px;gap:12px}
  .brand-meta{display:none}
  .nav-toggle{
    display:inline-flex;
    align-items:center;
    gap:9px;
    padding:8px 12px;
    border:1px solid var(--pine);
    border-radius:var(--radius-hard);
    color:var(--mist);
    font-size:13px;
    letter-spacing:.06em;
    flex:none;
  }
  .primary-nav{
    display:none;
    position:absolute;
    left:0;
    right:0;
    top:100%;
    z-index:70;
    background:var(--ink-2);
    border-top:1px solid var(--pine);
    border-bottom:1px solid var(--pine);
    padding:6px var(--gutter) 18px;
    max-height:calc(100vh - 100px);
    overflow-y:auto;
  }
  .primary-nav[data-open="true"]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list li{border-bottom:1px solid var(--pine)}
  .nav-list li:last-child{border-bottom:0}
  .nav-list a{display:block;padding:14px 4px;font-size:17px}
  .nav-list a::before{inset:4px 0}
  .nav-list a[aria-current="page"]::after{display:none}
  .entry-strip-inner{min-height:40px}
  .entry-route{font-size:12px}
  .entry-actions{margin-left:0}
  .entry-actions .btn-sm{padding:5px 10px;font-size:12px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr 1fr}
  .span-3,.span-4,.span-6,.span-8{grid-column:span 12}
  .lattice{gap:14px}
}
@media (max-width:520px){
  .entry-tag span:last-child{display:none}
  .legal-line{gap:8px}
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .btn::before,.nav-list a::before{transition:none}
}