/* =========================================================
   英博体育 · 全站共享样式  /assets/site.css
   侧边轨道导航｜展览画册节奏｜赛场数据配色
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --night:#05162F;
  --deep:#0C2C5C;
  --brand-blue:#124A8F;
  --signal:#2C7BEA;
  --lime:#C8FF3D;
  --lime-deep:#93D400;
  --ember:#FF5A2B;
  --amber:#FFB020;
  --porcelain:#F3F7FC;
  --mist:#9FB3CC;
  --stroke:#DCE7F5;
  --ink:#E4EDFA;

  --rail-w:88px;
  --topbar-h:64px;
  --maxw:1240px;

  --r-xl:30px;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;

  --font-sans:'Noto Sans SC','Source Han Sans SC',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. 重置 ---------- */
*,*::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,dl,dd,dt{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
::selection{background:rgba(200,255,61,.32);color:#fff}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--night);
  min-height:100vh;
  overflow-x:hidden;
  padding-top:var(--topbar-h);
}

h1,h2,h3,h4{color:var(--porcelain);font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(34px,4.6vw,54px);line-height:1.1;font-weight:900}
h2{font-size:clamp(26px,3.2vw,35px);line-height:1.2}
h3{font-size:clamp(19px,2.1vw,23px);line-height:1.3;font-weight:700}
h4{font-size:17px;line-height:1.4;font-weight:700}
p{max-width:74ch}
a:hover{color:var(--lime)}

:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

/* ---------- 4. 容器与栅格 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:18px;padding-right:18px}

.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(0,1fr) minmax(0,1fr);align-items:center;gap:36px}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;top:-80px;left:16px;z-index:2000;
  padding:12px 22px;border-radius:0 0 14px 14px;
  background:var(--lime);color:var(--night);
  font-size:14px;font-weight:800;letter-spacing:.04em;
  transition:top .24s var(--ease);
}
.skip-link:focus{top:0;color:var(--night)}

/* ---------- 6. 按钮与胶囊 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),
             border-color .22s var(--ease),transform .22s var(--ease);
}
.btn--signal{background:var(--lime);color:var(--night)}
.btn--signal:hover{background:var(--lime-deep);color:var(--night)}
.btn--signal:active{transform:translateY(1px)}
.btn--ghost{border-color:rgba(220,231,245,.34);color:var(--porcelain)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:.06em;
  background:rgba(44,123,234,.18);color:#BBD4F5;
  border:1px solid rgba(44,123,234,.36);
}
.pill--lime{background:rgba(200,255,61,.13);color:var(--lime);border-color:rgba(200,255,61,.42)}
.pill--ember{background:rgba(255,90,43,.16);color:#FF8C69;border-color:rgba(255,90,43,.42)}
.pill--amber{background:rgba(255,176,32,.15);color:var(--amber);border-color:rgba(255,176,32,.42)}

/* ---------- 7. 状态灯 ---------- */
.status-lamp{
  display:inline-block;flex:0 0 auto;
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);
  animation:lamp-breathe 2.4s ease-in-out infinite;
}
@keyframes lamp-breathe{
  0%,100%{box-shadow:0 0 0 0 rgba(200,255,61,.5)}
  50%{box-shadow:0 0 0 7px rgba(200,255,61,0)}
}

/* ---------- 8. 卡片 · 数字 · 章节头 ---------- */
.card{
  position:relative;
  background:linear-gradient(158deg,rgba(18,74,143,.38),rgba(12,44,92,.62));
  border:1px solid rgba(220,231,245,.15);
  border-radius:var(--r-lg);
  padding:24px;
}
.card--light{background:linear-gradient(158deg,#FFFFFF,#E8EFF9);border-color:var(--stroke);color:var(--night)}
.card--light h3,.card--light h4{color:var(--night)}
.card--raised{transition:transform .28s var(--ease),border-color .28s var(--ease)}
.card--raised:hover{transform:translateY(-4px);border-color:rgba(200,255,61,.46)}
.card__title{font-size:18px;font-weight:700;color:var(--porcelain);margin-bottom:10px}
.card--light .card__title{color:var(--night)}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist)}

.stat{display:flex;flex-direction:column;gap:4px}
.stat__value,.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.stat__value{font-size:clamp(28px,3.4vw,38px);font-weight:800;line-height:1.1;color:var(--lime)}
.stat__label{font-size:13px;color:var(--mist);letter-spacing:.02em}

.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 18px;margin-bottom:18px}
.section-head__num{
  font-family:var(--font-mono);font-weight:800;line-height:1;
  font-size:clamp(34px,5vw,56px);letter-spacing:.02em;
  color:rgba(200,255,61,.85);
}
.section-head__title{font-size:clamp(22px,2.6vw,32px);font-weight:800;color:var(--porcelain)}
.section-head__text{flex:1 1 260px;font-size:15px;color:var(--mist)}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{margin:28px 0 10px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--mist)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:'/';color:rgba(159,179,204,.5)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb [aria-current="page"]{color:var(--porcelain)}

/* ---------- 10. 响应式图片容器 ---------- */
.media{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  background:linear-gradient(145deg,#0C2C5C,#05162F);
  aspect-ratio:16/9;
  isolation:isolate;
}
.media img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media--light{background:linear-gradient(145deg,#E6EEF9,#CBD9EC)}
.media--grid::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(200,255,61,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(200,255,61,.07) 1px,transparent 1px);
  background-size:52px 52px;
}
.media__caption{
  position:absolute;left:16px;bottom:14px;right:16px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--porcelain);text-shadow:0 1px 6px rgba(5,22,47,.8);
}

/* ---------- 11. 显现与滚动进度 ---------- */
.has-js [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

.scroll-progress{
  position:fixed;top:var(--topbar-h);left:0;right:0;height:3px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--signal));
  z-index:1200;pointer-events:none;
}

/* ---------- 12. 头部：移动端顶栏 ---------- */
.site-header{position:relative;z-index:900}

.topbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--topbar-h);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;
  background:rgba(5,22,47,.94);
  border-bottom:1px solid rgba(220,231,245,.14);
}
.topbar__brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.topbar__mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:34px;height:34px;border-radius:11px;
  background:var(--lime);color:var(--night);
  font-size:13px;font-weight:900;letter-spacing:.02em;
}
.topbar__name{font-size:16px;font-weight:800;color:var(--porcelain);white-space:nowrap}

.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 15px;border-radius:var(--r-pill);
  background:rgba(44,123,234,.16);
  border:1px solid rgba(200,255,61,.38);
  color:var(--lime);font-size:13px;font-weight:600;letter-spacing:.08em;
  cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{background:rgba(200,255,61,.14)}
.nav-toggle__bars{
  position:relative;display:block;width:16px;height:2px;border-radius:2px;
  background:currentColor;
  transition:background .2s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:'';position:absolute;left:0;width:16px;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform .26s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.site-header[data-open] .nav-toggle__bars{background:transparent}
.site-header[data-open] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- 13. 头部：移动端抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:950;
  width:min(340px,88vw);
  display:flex;flex-direction:column;
  padding:calc(var(--topbar-h) + 20px) 18px 24px;
  background:linear-gradient(180deg,#0C2C5C 0%,#05162F 100%);
  border-left:1px solid rgba(220,231,245,.16);
  transform:translateX(102%);
  visibility:hidden;
  overflow-y:auto;
  transition:transform .34s var(--ease),visibility .34s var(--ease);
}
.site-header[data-open] .drawer{transform:none;visibility:visible}

.drawer__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:12px;margin-bottom:14px;
  border-bottom:1px dashed rgba(220,231,245,.22);
}
.drawer__title{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--mist)}
.drawer__hint{font-size:12px;color:rgba(159,179,204,.7)}

.drawer__nav{flex:1 1 auto}
.drawer__list{display:flex;flex-direction:column;gap:2px}
.drawer__link{
  display:flex;align-items:center;gap:14px;
  padding:14px 10px;border-radius:14px;
  color:#D6E3F5;font-size:16px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer__link:hover{background:rgba(44,123,234,.18);color:var(--porcelain)}
.drawer__link[aria-current="page"]{color:var(--lime);background:rgba(200,255,61,.09)}
.drawer__idx{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);min-width:22px}
.drawer__link[aria-current="page"] .drawer__idx{color:var(--lime)}
.drawer__label{line-height:1.3}

.drawer__foot{margin-top:20px;padding-top:18px;border-top:1px dashed rgba(220,231,245,.22)}
.drawer__cta{width:100%}
.drawer__note{
  display:flex;align-items:center;gap:8px;justify-content:center;
  margin-top:12px;font-size:12px;color:var(--mist);
}

.drawer-scrim{
  position:fixed;inset:0;z-index:900;
  background:rgba(3,12,26,.62);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.site-header[data-open] .drawer-scrim{opacity:1;pointer-events:auto}
body.is-nav-open{overflow:hidden}

/* ---------- 14. 头部：桌面侧边轨道 ---------- */
.rail{display:none}

@media (min-width:1024px){
  .topbar{display:none}
  .drawer,.drawer-scrim{display:none}
  body{padding-top:0;padding-left:var(--rail-w)}

  .rail{
    position:fixed;top:0;left:0;bottom:0;z-index:900;
    width:var(--rail-w);
    display:flex;flex-direction:column;gap:16px;
    padding:18px 6px 16px;
    background:linear-gradient(180deg,#0C2C5C 0%,#082140 55%,#05162F 100%);
    border-right:1px solid rgba(220,231,245,.14);
  }
  .rail::after{
    content:'';position:absolute;top:0;right:-1px;bottom:0;width:1px;
    background:linear-gradient(180deg,transparent,rgba(200,255,61,.7) 18%,rgba(44,123,234,.5) 62%,transparent);
  }

  .rail__brand{
    display:flex;flex-direction:column;align-items:center;gap:8px;
    padding:6px 0 16px;
    border-bottom:1px dashed rgba(220,231,245,.2);
  }
  .rail__mark{
    display:grid;place-items:center;
    width:46px;height:46px;border-radius:15px;
    background:var(--lime);color:var(--night);
    font-size:15px;font-weight:900;letter-spacing:.02em;
    transition:background .22s var(--ease);
  }
  .rail__brand:hover .rail__mark{background:var(--lime-deep)}
  .rail__brand-line{
    font-family:var(--font-mono);font-size:9.5px;line-height:1.4;
    letter-spacing:.1em;color:var(--mist);text-align:center;
  }

  .rail__nav{flex:1 1 auto;display:flex;align-items:center;min-height:0}
  .rail__list{display:flex;flex-direction:column;gap:4px;width:100%}
  .rail__link{
    position:relative;
    display:flex;flex-direction:column;align-items:center;gap:5px;
    padding:10px 2px;border-radius:13px;
    color:var(--mist);
    transition:background .22s var(--ease),color .22s var(--ease);
  }
  .rail__link:hover{background:rgba(44,123,234,.18);color:var(--porcelain)}
  .rail__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:rgba(159,179,204,.7)}
  .rail__label{
    font-size:11px;font-weight:500;line-height:1.32;letter-spacing:.01em;
    text-align:center;
  }
  .rail__link[aria-current="page"]{background:rgba(200,255,61,.1);color:var(--porcelain)}
  .rail__link[aria-current="page"] .rail__idx{color:var(--lime)}
  .rail__link[aria-current="page"]::before{
    content:'';position:absolute;left:-6px;top:50%;
    transform:translateY(-50%);
    width:3px;height:28px;border-radius:0 3px 3px 0;
    background:var(--lime);
    box-shadow:0 0 12px rgba(200,255,61,.6);
  }

  .rail__foot{
    margin-top:auto;display:flex;flex-direction:column;align-items:center;gap:12px;
    padding-top:14px;border-top:1px dashed rgba(220,231,245,.2);
  }
  .rail__cta{width:100%;padding:11px 4px;font-size:13px;letter-spacing:.06em;white-space:nowrap}
  .rail__status{
    display:flex;flex-direction:column;align-items:center;gap:6px;
    font-size:9.5px;line-height:1.45;letter-spacing:.04em;
    color:var(--mist);text-align:center;max-width:none;
  }

  .scroll-progress{top:0;left:var(--rail-w)}
}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:0;
  background:var(--night);
  border-top:1px solid rgba(220,231,245,.12);
  color:var(--mist);
  overflow:hidden;
}
.site-footer::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--lime) 18%,var(--signal) 58%,transparent);
  opacity:.8;
}
.site-footer::after{
  content:'';position:absolute;right:-170px;bottom:-170px;
  width:440px;height:440px;border-radius:50%;
  border:1px solid rgba(44,123,234,.2);
  pointer-events:none;
}
.site-footer p{max-width:none}

.footer__inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.2fr 1.6fr 1.3fr;
  gap:36px 48px;
  padding-top:58px;padding-bottom:44px;
}

.footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.footer__logo{display:inline-flex;align-items:center;gap:12px}
.footer__mark{
  display:grid;place-items:center;
  width:42px;height:42px;border-radius:14px;
  background:var(--lime);color:var(--night);
  font-size:14px;font-weight:900;letter-spacing:.02em;
}
.footer__word{font-size:19px;font-weight:800;color:var(--porcelain);letter-spacing:.02em}
.footer__tagline{font-size:14px;line-height:1.7;color:var(--mist)}
.footer__state{display:flex;align-items:center;gap:8px;font-size:13px;color:#C6D5E9}

.footer__nav{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.footer__col-title{
  font-family:var(--font-mono);
  font-size:11px;font-weight:600;letter-spacing:.18em;
  color:var(--lime);margin-bottom:16px;
}
.footer__list{display:flex;flex-direction:column;gap:11px}
.footer__list a{
  position:relative;display:inline-block;
  font-size:15px;color:#C6D5E9;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__list a:hover{color:var(--lime);transform:translateX(5px)}

.footer__contact{display:flex;flex-direction:column}
.footer__meta{display:flex;flex-direction:column;gap:12px}
.footer__meta-row{display:flex;flex-direction:column;gap:3px}
.footer__meta-row dt{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  color:rgba(159,179,204,.85);
}
.footer__meta-row dd{margin:0;font-size:15px;line-height:1.6;color:var(--ink);word-break:break-word}
.footer__note{margin-top:16px;font-size:12.5px;line-height:1.7;color:rgba(159,179,204,.9)}

.footer__sync{
  position:relative;z-index:1;
  border-top:1px solid rgba(220,231,245,.12);
  border-bottom:1px solid rgba(220,231,245,.12);
  background:rgba(18,74,143,.16);
}
.sync-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  padding-top:16px;padding-bottom:16px;
}
.sync-strip__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--mist);
  padding:4px 13px;border-radius:var(--r-pill);
  border:1px solid rgba(220,231,245,.22);
}
.sync-strip__item{font-size:13px;color:#C6D5E9;display:inline-flex;align-items:center;gap:8px}
.sync-strip__item b{font-weight:500;color:var(--mist)}
.sync-strip__item em{
  font-style:normal;
  font-family:var(--font-mono);font-size:14px;font-weight:700;
  letter-spacing:.04em;color:var(--lime);
}
.sync-strip__flag{
  margin-left:auto;
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--lime);
}

.footer__base{position:relative;z-index:1;background:rgba(2,9,20,.42)}
.footer__base-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 24px;
  padding-top:18px;padding-bottom:18px;
  font-size:13px;color:var(--mist);
}
.footer__icp{font-family:var(--font-mono);letter-spacing:.04em}

/* ---------- 16. 分档响应式 ---------- */
@media (max-width:1023px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:1fr;gap:26px}
  .footer__inner{grid-template-columns:1fr 1fr;gap:32px;padding-top:44px;padding-bottom:36px}
  .footer__brand{grid-column:1 / -1}
  .footer__contact{grid-column:1 / -1}
  .sync-strip__flag{margin-left:0}
}

@media (max-width:720px){
  body{font-size:16px}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .container{padding-left:18px;padding-right:18px}
  .footer__inner{grid-template-columns:1fr;gap:30px}
  .footer__nav{grid-template-columns:1fr 1fr}
  .footer__brand,.footer__contact{grid-column:auto}
  .sync-strip{gap:10px 18px;padding-top:14px;padding-bottom:14px}
  .footer__base-inner{justify-content:flex-start}
  .card{padding:20px}
  .media{border-radius:var(--r-lg)}
}

@media (max-width:400px){
  .footer__nav{grid-template-columns:1fr}
  .topbar__name{font-size:15px}
}

/* ---------- 17. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    transition-delay:0ms!important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .status-lamp{animation:none;box-shadow:0 0 0 0 rgba(200,255,61,.5)}
}