/* ============================================================
   欧皇体育 · 共享外壳样式 /assets/site.css
   夜赛灯光体系：深墨绿底 + 荧光青柠强调 + 跑道橙红提醒
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);font-size:17px;line-height:1.8;background:var(--ink-900);color:var(--mist);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit}
ul,ol{margin:0;padding:0}
button{font:inherit;color:inherit}
[hidden]{display:none !important}
::selection{background:var(--lime);color:var(--ink-900)}

/* ---------- 2. Tokens ---------- */
:root{
  --ink-900:#071C17;
  --ink-850:#0B241E;
  --ink-800:#111816;
  --ink-700:#16211D;
  --mist:#F3F7EE;
  --mist-dim:#B9C4BC;
  --lime:#C9FF3F;
  --lime-soft:rgba(201,255,63,.12);
  --orange:#FF5A36;
  --gold:#E9B85C;
  --gray:#8E9A92;
  --teal:#2ED9C3;
  --deep-red:#7A2A1B;
  --rail-w:268px;
  --bar-h:68px;
  --pad:clamp(18px,4vw,56px);
  --radius-l:30px;
  --radius-m:18px;
  --radius-pill:999px;
  --hair:rgba(243,247,238,.14);
  --hair-lime:rgba(201,255,63,.18);
  --font-head:"Barlow Condensed","Oswald","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ---------- 3. 基础排版 ---------- */
h1,h2,h3,h4{font-family:var(--font-head);font-weight:900;line-height:1.02;letter-spacing:-.03em;margin:0 0 .42em;text-wrap:balance}
h1{font-size:clamp(46px,7.2vw,116px)}
h2{font-size:clamp(30px,4.4vw,64px)}
h3{font-size:clamp(21px,2.3vw,31px);letter-spacing:-.02em}
h4{font-size:clamp(17px,1.4vw,20px);letter-spacing:-.01em}
p{margin:0 0 1.05em}
strong{color:var(--lime);font-weight:700}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px;border-radius:6px}

/* ---------- 4. 通用工具 ---------- */
.shell{width:100%;max-width:1140px;margin-inline:auto;padding-inline:var(--pad)}
.prose{max-width:34em}
.prose p{font-size:clamp(16px,1.05vw,18px);line-height:1.85}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin:0 0 14px;font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal)}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);border-radius:2px}
.tag{display:inline-block;padding:4px 12px;border-radius:var(--radius-pill);background:var(--lime-soft);color:var(--lime);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase}
.rule{height:1px;border:0;margin:0;background:var(--hair)}
.is-hidden{display:none !important}

/* ---------- 5. 分节与章节头 ---------- */
.section{position:relative;padding-block:clamp(48px,7vw,96px)}
.section--dark{background:var(--ink-900);color:var(--mist)}
.section--charcoal{background:var(--ink-800);color:var(--mist)}
.section--light{background:var(--mist);color:var(--ink-900)}
.section-head{display:grid;gap:12px;max-width:56ch;margin-bottom:clamp(26px,4vw,52px)}
.section-head h2,.section-head h3{margin:0}
.section-head__num{font-family:var(--font-mono);font-size:13px;letter-spacing:.24em;color:var(--orange)}
.section-head__lead{margin:0;max-width:44ch;font-size:clamp(15px,1.15vw,18px);color:var(--mist-dim)}
.section--light .eyebrow{color:#0F6F5C}
.section--light .eyebrow::before{background:var(--ink-900)}
.section--light .section-head__num{color:var(--deep-red)}
.section--light .section-head__lead{color:#4A5A52}

/* ---------- 6. 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px);grid-template-columns:1fr}
@media (min-width:760px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
  .grid--asym{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);align-items:start}
}

/* ---------- 7. 图片容器基础规则 ---------- */
.media{position:relative;margin:0;overflow:hidden;border-radius:var(--radius-l);aspect-ratio:16/10;background:linear-gradient(150deg,var(--ink-850),var(--ink-700) 55%,var(--ink-900));box-shadow:inset 0 0 0 1px var(--hair-lime)}
.media__img{width:100%;height:100%;object-fit:cover}
.media::after{content:"";position:absolute;inset:auto 0 0 0;height:48%;background:linear-gradient(180deg,transparent,rgba(7,28,23,.82));pointer-events:none}
.media__caption{position:absolute;left:18px;right:18px;bottom:14px;z-index:2;margin:0;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mist)}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}

/* ---------- 8. 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border:1px solid transparent;border-radius:var(--radius-pill);font-family:var(--font-body);font-size:15.5px;font-weight:700;letter-spacing:.02em;text-decoration:none;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn::after{content:"→";font-family:var(--font-mono);transition:transform .2s ease}
.btn:hover::after{transform:translateX(4px)}
.btn--lime{background:var(--lime);color:var(--ink-900)}
.btn--lime:hover{background:#D8FF6B}
.btn--ghost{background:transparent;border-color:rgba(243,247,238,.28);color:var(--mist)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn--ink{background:var(--ink-900);color:var(--mist)}
.btn--ink:hover{background:var(--ink-850);color:var(--lime)}
.btn--orange{background:var(--orange);color:#1A0D08}
.btn--orange:hover{background:#FF7255}
.btn--sm{padding:9px 18px;font-size:13.5px}

/* ---------- 9. 胶囊筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:clamp(20px,3vw,32px)}
.filter-btn{appearance:none;padding:9px 18px;border:1px solid rgba(243,247,238,.22);border-radius:var(--radius-pill);background:transparent;color:var(--mist-dim);font-size:14px;letter-spacing:.03em;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease}
.filter-btn:hover{border-color:var(--lime);color:var(--lime)}
.filter-btn[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:var(--ink-900);font-weight:700}
.section--light .filter-btn{border-color:rgba(7,28,23,.22);color:#4A5A52}
.section--light .filter-btn:hover{border-color:var(--ink-900);color:var(--ink-900)}
.section--light .filter-btn[aria-pressed="true"]{background:var(--ink-900);border-color:var(--ink-900);color:var(--lime)}
.filter-empty{display:none;margin:0;font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;color:var(--orange)}
.filter-empty[data-empty="true"]{display:block}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb{margin-bottom:22px}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--gray)}
.breadcrumb__list li{display:flex;align-items:center;gap:8px}
.breadcrumb__list li+li::before{content:"/";color:rgba(142,154,146,.6)}
.breadcrumb__link{text-decoration:none;color:inherit;transition:color .2s ease}
.breadcrumb__link:hover{color:var(--lime)}

/* ---------- 11. 记分牌数据 ---------- */
.scoreboard{display:grid;grid-template-columns:repeat(auto-fit,minmax(138px,1fr));border-top:1px solid var(--hair-lime)}
.scoreboard__cell{padding:18px 16px;border-right:1px solid var(--hair-lime);border-bottom:1px solid var(--hair-lime)}
.scoreboard__value{display:block;font-family:var(--font-mono);font-size:clamp(24px,3vw,38px);line-height:1.1;letter-spacing:-.01em;color:var(--lime)}
.scoreboard__label{display:block;margin-top:6px;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--mist-dim)}
.section--light .scoreboard,.section--light .scoreboard__cell{border-color:rgba(7,28,23,.16)}
.section--light .scoreboard__value{color:var(--ink-900)}
.section--light .scoreboard__label{color:#4A5A52}

/* ---------- 12. 问答手风琴（原生 details） ---------- */
.acc{border-bottom:1px solid var(--hair)}
.acc__q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;list-style:none;cursor:pointer;font-family:var(--font-head);font-size:clamp(17px,1.7vw,22px);font-weight:800;letter-spacing:-.01em;line-height:1.3}
.acc__q::-webkit-details-marker{display:none}
.acc__q::after{content:"+";font-family:var(--font-mono);font-size:22px;line-height:1;color:var(--lime);transition:transform .2s ease}
.acc[open] .acc__q::after{content:"–";color:var(--orange)}
.acc__a{max-width:62ch;padding:0 0 20px;color:var(--mist-dim)}
.acc__a p:last-child{margin-bottom:0}
.section--light .acc{border-color:rgba(7,28,23,.16)}
.section--light .acc__a{color:#4A5A52}
.section--light .acc__q::after{color:#0F6F5C}

/* ---------- 13. 滚动显现 ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .42s ease,transform .42s cubic-bezier(.2,.7,.3,1)}
[data-reveal].is-visible{opacity:1;transform:none}
html:not(.js) [data-reveal]{opacity:1;transform:none}

/* ---------- 14. 跳到主要内容 ---------- */
.skip-link{position:fixed;top:10px;left:10px;z-index:200;padding:10px 20px;border-radius:var(--radius-pill);background:var(--lime);color:var(--ink-900);font-weight:700;text-decoration:none;transform:translateY(-180%);transition:transform .2s ease}
.skip-link:focus{transform:none}

/* ---------- 15. 滚动进度 ---------- */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:90;background:rgba(243,247,238,.08);pointer-events:none}
.scroll-progress__fill{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--teal),var(--lime));transition:width .12s linear}

/* ---------- 16. 头部：移动顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:70;background:linear-gradient(180deg,var(--ink-900),var(--ink-850));color:var(--mist);border-bottom:1px solid var(--hair-lime)}
.site-header__bar{display:flex;align-items:center;justify-content:space-between;gap:14px;height:var(--bar-h);padding:0 var(--pad)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;min-width:0}
.brand__mark{flex:0 0 auto;display:grid;place-items:center;width:38px;height:38px;border-radius:13px;background:var(--lime);box-shadow:0 6px 18px rgba(201,255,63,.22)}
.brand__dot{display:block;width:16px;height:16px;border:3px solid var(--ink-900);border-radius:50%}
.brand__text{display:grid;min-width:0}
.brand__name{font-family:var(--font-head);font-size:19px;font-weight:900;letter-spacing:-.01em;line-height:1.15}
.brand__line{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;line-height:1.5;color:var(--gray);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-toggle{display:inline-flex;align-items:center;gap:10px;padding:9px 16px;border:1px solid rgba(201,255,63,.35);border-radius:var(--radius-pill);background:rgba(201,255,63,.08);color:var(--mist);font-size:13px;letter-spacing:.08em;cursor:pointer;transition:background .2s ease,border-color .2s ease}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:var(--lime);transition:transform .2s ease}
.site-header[data-open] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__label{line-height:1}

/* ---------- 17. 头部：抽屉 / 侧轨 ---------- */
.site-nav-wrap{position:fixed;left:0;right:0;top:var(--bar-h);bottom:0;z-index:69;display:flex;flex-direction:column;padding:22px var(--pad) 32px;overflow-y:auto;background:linear-gradient(180deg,var(--ink-900) 0%,var(--ink-850) 62%,var(--ink-800) 100%);border-top:1px solid var(--hair-lime);opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .24s ease,transform .24s ease,visibility .24s}
.site-header[data-open] .site-nav-wrap{opacity:1;visibility:visible;transform:none}
.site-nav__eyebrow{margin:0 0 12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--gray)}
.site-nav__list{display:grid;gap:2px;list-style:none}
.site-nav__item{margin:0}
.site-nav__link{position:relative;display:flex;align-items:center;gap:14px;padding:15px 14px;border-radius:14px;color:var(--mist-dim);text-decoration:none;font-size:20px;font-weight:600;letter-spacing:.01em;transition:color .2s ease,background .2s ease}
.site-nav__idx{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--gray);transition:color .2s ease}
.site-nav__link:hover{color:var(--mist);background:rgba(201,255,63,.07)}
.site-nav__link:hover .site-nav__idx{color:var(--lime)}
.site-nav__link[aria-current="page"]{background:var(--lime);color:var(--ink-900);font-weight:800}
.site-nav__link[aria-current="page"] .site-nav__idx{color:rgba(7,28,23,.55)}
.rail-actions{display:grid;gap:8px;margin-top:auto;padding-top:26px}
.rail-actions__title{margin:0 0 4px;font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--gray)}
.rail-actions__link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 18px;border:1px solid rgba(243,247,238,.16);border-radius:var(--radius-pill);color:var(--mist);text-decoration:none;font-size:14px;letter-spacing:.04em;transition:background .2s ease,border-color .2s ease,color .2s ease}
.rail-actions__link::after{content:"↗";font-family:var(--font-mono);font-size:12px;color:var(--gray);transition:transform .2s ease,color .2s ease}
.rail-actions__link:hover{border-color:rgba(201,255,63,.5);background:rgba(201,255,63,.1);color:var(--lime)}
.rail-actions__link:hover::after{color:var(--lime);transform:translate(2px,-2px)}
.rail-actions__link--primary{background:var(--lime);border-color:var(--lime);color:var(--ink-900);font-weight:800}
.rail-actions__link--primary::after{color:var(--ink-900)}
.rail-actions__link--primary:hover{background:#D8FF6B;border-color:#D8FF6B;color:var(--ink-900)}
.rail-foot{display:grid;gap:4px;margin-top:22px;padding-top:16px;border-top:1px dashed var(--hair)}
.rail-foot__line{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--gray)}
.rail-foot__line--live{color:var(--lime)}
.rail-foot__line--live::before{content:"";display:inline-block;width:6px;height:6px;margin-right:7px;border-radius:50%;background:var(--lime);vertical-align:middle;animation:railPulse 2.4s ease-in-out infinite}
@keyframes railPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.75)}}

/* ---------- 18. 桌面：左侧轨道 ---------- */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  .scroll-progress{left:var(--rail-w);height:2px}
  .site-header{position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);display:flex;flex-direction:column;padding:26px 0 22px;border-right:1px solid var(--hair-lime);border-bottom:0;overflow:hidden}
  .site-header::after{content:"";position:absolute;right:-70px;bottom:-90px;width:230px;height:230px;border-radius:50%;border:1px solid rgba(201,255,63,.16);box-shadow:0 0 0 32px rgba(201,255,63,.045),0 0 0 70px rgba(46,217,195,.035);pointer-events:none}
  .site-header__bar{height:auto;padding:0 22px 20px;gap:0}
  .nav-toggle{display:none}
  .site-nav-wrap{position:static;inset:auto;flex:1 1 auto;min-height:0;padding:0 22px;opacity:1;visibility:visible;transform:none;background:none;border-top:0;overflow-y:auto;scrollbar-width:thin}
  .site-nav__link{padding:10px 12px;font-size:15.5px;font-weight:600}
  .site-nav__link[aria-current="page"]{font-weight:800}
  .rail-actions{padding-top:20px}
  .rail-foot{margin-top:18px}
}
@media (min-width:1280px){
  .site-nav__link{font-size:16.5px;padding:11px 13px}
}

/* ---------- 19. 页脚 ---------- */
.site-footer{position:relative;overflow:hidden;padding:clamp(40px,6vw,74px) var(--pad) 26px;background:linear-gradient(180deg,var(--ink-800) 0%,var(--ink-900) 100%);color:var(--mist);border-top:1px solid var(--hair-lime)}
.site-footer::before{content:"";position:absolute;top:-140px;right:-120px;width:340px;height:340px;border-radius:50%;border:1px solid rgba(201,255,63,.14);box-shadow:0 0 0 40px rgba(233,184,92,.03),0 0 0 88px rgba(46,217,195,.03);pointer-events:none}
.footer__inner{position:relative;z-index:1;display:grid;gap:clamp(24px,3.4vw,40px);width:100%;max-width:1140px;margin-inline:auto}
.footer__top{display:grid;gap:clamp(26px,4vw,44px);grid-template-columns:minmax(0,1fr)}
@media (min-width:820px){
  .footer__top{grid-template-columns:minmax(0,1.5fr) minmax(0,.85fr) minmax(0,1.15fr);align-items:start}
}
.footer__brand{display:grid;gap:10px;align-content:start}
.footer__logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-size:clamp(24px,2.6vw,30px);font-weight:900;letter-spacing:-.02em;line-height:1.1;color:var(--mist);text-decoration:none;transition:color .2s ease}
.footer__logo:hover{color:var(--lime)}
.footer__logo-dot{width:12px;height:12px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(201,255,63,.16)}
.footer__tagline{margin:0;font-size:14px;letter-spacing:.02em;color:var(--mist-dim)}
.footer__addr{margin:0;max-width:30ch;font-family:var(--font-mono);font-size:12px;line-height:1.7;letter-spacing:.02em;color:var(--gray)}
.footer__nav{display:grid;gap:12px;align-content:start}
.footer__nav-title{margin:0;font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--gray)}
.footer__links{display:grid;gap:8px;list-style:none}
.footer__link{display:inline-block;color:var(--mist-dim);text-decoration:none;font-size:15px;transition:color .2s ease,padding-left .2s ease}
.footer__link:hover{color:var(--lime);padding-left:8px}
.footer__meta{display:grid;gap:10px;align-content:start}
.footer__meta-title{margin:0;font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--gray)}
.footer__copy{display:inline-flex;flex-wrap:wrap;align-items:center;gap:10px;max-width:100%;padding:10px 16px;border:1px solid rgba(201,255,63,.35);border-radius:var(--radius-pill);background:rgba(201,255,63,.08);cursor:pointer;transition:background .2s ease,border-color .2s ease}
.footer__copy:hover{border-color:var(--lime);background:rgba(201,255,63,.16)}
.footer__copy-text{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.01em;color:var(--mist);overflow-wrap:anywhere;text-align:left}
.footer__copy-hint{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--lime)}
.footer__phone{margin:0;font-family:var(--font-mono);font-size:14px;letter-spacing:.06em;color:var(--mist-dim)}
.footer__hours{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--gold)}
.footer__strip{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 24px;padding-top:22px;border-top:1px dashed rgba(243,247,238,.16);font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;color:var(--mist-dim)}
.footer__icp{color:var(--gold)}
.footer__mail{color:var(--mist-dim);overflow-wrap:anywhere}
.footer__hours--inline{color:var(--mist-dim)}
.footer__bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.footer__legal{margin:0;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--gray)}
.to-top{padding:9px 18px;border:1px solid rgba(243,247,238,.24);border-radius:var(--radius-pill);background:transparent;color:var(--mist);font-size:13px;letter-spacing:.08em;cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease}
.to-top:hover{border-color:var(--lime);color:var(--lime);background:rgba(201,255,63,.08)}

/* ---------- 20. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
  .scroll-progress__fill{transition:none}
  .site-nav-wrap{transition:none}
}