/* ============================================================
   博业体育主站 · /assets/site.css
   夜灯操控台 · 模块化 Bento 信息板 · 矿物色体系
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --c-night:#0B1B2B;
  --c-pine:#0E2A26;
  --c-rock:#3A4448;
  --c-moss:#6F7F5E;
  --c-clay:#B46A4A;
  --c-cream:#F2EDE4;
  --c-steel:#8A9499;
  --c-cyan:#29E0D0;
  --c-amber:#F59E42;

  --bg:var(--c-night);
  --bg-alt:var(--c-pine);
  --fg:var(--c-cream);
  --fg-dim:rgba(242,237,228,.78);
  --fg-faint:rgba(242,237,228,.52);

  --line:rgba(58,68,72,.9);
  --line-soft:rgba(58,68,72,.5);
  --line-cyan:rgba(41,224,208,.48);
  --line-amber:rgba(245,158,66,.5);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --wrap:1240px;
  --gutter:clamp(16px,3.2vw,34px);
  --gap:clamp(14px,1.8vw,22px);
  --t-fast:.16s cubic-bezier(.4,0,.2,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100%;
  background:
    radial-gradient(1100px 560px at 82% -12%, rgba(41,224,208,.10), transparent 60%),
    radial-gradient(760px 460px at -6% 4%, rgba(14,42,38,.95), transparent 62%),
    var(--bg);
  color:var(--fg);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img,svg,video,picture{display:block;max-width:100%;height:auto;}

h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.01em;
  color:var(--fg);
}

p{margin:0;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;}
table{border-collapse:collapse;width:100%;}

:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--c-cyan);
  outline-offset:2px;
}

/* ---------- 3. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-120px;
  z-index:200;
  padding:10px 18px;
  background:var(--c-cyan);
  color:var(--c-night);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  transition:top var(--t-fast);
}
.skip-link:focus{top:12px;}

/* ---------- 4. 布局容器 ---------- */
.wrap,
.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.prose{
  max-width:68ch;
  font-size:16px;
  line-height:1.85;
  color:var(--fg-dim);
}
.prose h2{margin:34px 0 12px;font-size:24px;}
.prose h3{margin:26px 0 10px;font-size:18px;}
.prose p{margin:0 0 16px;}
.prose ul{margin:0 0 16px;padding-left:20px;}
.prose li{list-style:square;margin-bottom:6px;}

/* ---------- 5. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--c-night);
  border-bottom:1px solid var(--line);
  box-shadow:0 16px 36px rgba(0,0,0,.42);
}

/* 5.1 上层发条栏 */
.header-rail{
  background:var(--c-pine);
  border-bottom:1px solid var(--line-soft);
}
.rail-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:54px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand-mark{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  background:var(--c-cyan);
  color:var(--c-night);
  font-family:var(--font-display);
  font-size:15px;
  font-weight:800;
  letter-spacing:0;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand-copy{
  display:flex;
  flex-direction:column;
  line-height:1.2;
  min-width:0;
}
.brand-name{
  font-size:15px;
  font-weight:800;
  letter-spacing:.1em;
  color:var(--c-cream);
}
.brand-line{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--c-steel);
  white-space:nowrap;
}

.rail-meta{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--c-steel);
  background:rgba(58,68,72,.2);
  border:1px solid var(--line);
  white-space:nowrap;
}
.meta-item--live{
  color:var(--c-amber);
  border-color:var(--line-amber);
  background:rgba(245,158,66,.1);
}
.meta-item--live::before{
  content:"";
  width:6px;
  height:6px;
  margin-right:7px;
  background:var(--c-amber);
}

/* 5.2 下层导航 */
.header-deck{background:var(--c-night);}
.deck-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:58px;
}

.nav-bar{
  display:block;
  flex:1 1 auto;
  min-width:0;
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
}
.nav-link{
  display:block;
  padding:9px 14px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--fg-dim);
  border-bottom:2px solid transparent;
  transition:color var(--t-fast),background-color var(--t-fast),border-color var(--t-fast);
}
.nav-link:hover,
.nav-link:focus-visible{
  color:var(--c-cyan);
  background:rgba(41,224,208,.08);
  border-bottom-color:var(--c-cyan);
}
.nav-link[aria-current="page"]{
  color:var(--c-night);
  background:var(--c-cyan);
  border-bottom-color:var(--c-cyan);
}
.nav-link[aria-current="page"]:hover,
.nav-link[aria-current="page"]:focus-visible{
  color:var(--c-night);
  background:var(--c-cyan);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  border:1px solid var(--line);
  color:var(--c-cream);
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  cursor:pointer;
  transition:border-color var(--t-fast),color var(--t-fast);
}
.nav-toggle:hover,
.nav-toggle:focus-visible{
  border-color:var(--line-cyan);
  color:var(--c-cyan);
}
.nav-toggle-label{white-space:nowrap;}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
  transition:background-color var(--t-fast);
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:currentColor;
  transition:transform var(--t-fast),top var(--t-fast);
}
.nav-toggle-bars::before{top:-5px;}
.nav-toggle-bars::after{top:5px;}
.nav-toggle[aria-expanded="true"]{border-color:var(--line-cyan);color:var(--c-cyan);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:0;transform:rotate(-45deg);}

.deck-cta{
  flex:0 0 auto;
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  padding:10px 18px;
  background:var(--c-amber);
  color:var(--c-night);
  font-size:13px;
  font-weight:800;
  letter-spacing:.1em;
  white-space:nowrap;
  clip-path:polygon(0 0,100% 0,100% 70%,88% 100%,0 100%);
  transition:background-color var(--t-fast),transform var(--t-fast);
}
.deck-cta:hover,
.deck-cta:focus-visible{
  background:var(--c-cyan);
  transform:translateY(-2px);
}

/* 5.3 滚动计量条 */
.scroll-meter{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  pointer-events:none;
  background:rgba(58,68,72,.6);
}
.scroll-meter span{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--c-cyan) 0%,var(--c-amber) 100%);
}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  background:linear-gradient(180deg,var(--c-night) 0%,var(--c-pine) 100%);
  border-top:1px solid var(--line);
  color:var(--fg);
  padding-top:clamp(32px,5vw,58px);
}

.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr) minmax(0,.9fr) minmax(0,1.5fr);
  gap:clamp(22px,3vw,44px);
  padding-bottom:clamp(28px,4vw,46px);
}
.footer-col{min-width:0;}

.footer-brand{
  margin:0 0 12px;
  font-family:var(--font-display);
  font-size:24px;
  font-weight:800;
  letter-spacing:.06em;
  color:var(--c-cream);
}
.footer-brand-sub{
  margin-left:8px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.24em;
  color:var(--c-cyan);
  vertical-align:3px;
}
.footer-note{
  margin:0 0 14px;
  max-width:36ch;
  font-size:13px;
  line-height:1.8;
  color:var(--c-steel);
}
.footer-note--sm{
  margin:14px 0 0;
  padding-top:12px;
  border-top:1px solid var(--line-soft);
  max-width:none;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
}

.footer-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.footer-title{
  display:inline-block;
  margin:0 0 16px;
  padding-bottom:7px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.22em;
  color:var(--c-moss);
}

.footer-list{
  display:grid;
  gap:9px;
}
.footer-link{
  display:inline-block;
  font-size:13.5px;
  letter-spacing:.04em;
  color:var(--fg-dim);
  border-bottom:1px solid transparent;
  transition:color var(--t-fast),border-color var(--t-fast);
}
.footer-link:hover,
.footer-link:focus-visible{
  color:var(--c-cyan);
  border-bottom-color:var(--c-cyan);
}

.footer-contact{
  display:grid;
  gap:14px;
}
.footer-contact li{
  display:grid;
  grid-template-columns:62px minmax(0,1fr);
  gap:4px 12px;
  align-items:baseline;
}
.contact-label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:var(--c-moss);
  white-space:nowrap;
}
.contact-body{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  min-width:0;
}
.contact-value{
  font-size:13px;
  line-height:1.7;
  color:var(--fg-dim);
  overflow-wrap:anywhere;
}

.copy-btn{
  flex:0 0 auto;
  padding:2px 8px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--c-steel);
  border:1px solid var(--line);
  cursor:pointer;
  transition:color var(--t-fast),border-color var(--t-fast),background-color var(--t-fast);
}
.copy-btn:hover,
.copy-btn:focus-visible{
  color:var(--c-cyan);
  border-color:var(--line-cyan);
  background:rgba(41,224,208,.08);
}
.copy-btn[data-copied="true"]{
  color:var(--c-night);
  background:var(--c-cyan);
  border-color:var(--c-cyan);
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 20px;
  padding-block:18px;
  border-top:1px solid var(--line-soft);
}
.footer-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--fg-faint);
}
.footer-legal--dim{color:var(--c-steel);}

/* ---------- 7. 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 20px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.07em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color var(--t-fast),color var(--t-fast),border-color var(--t-fast),transform var(--t-fast);
}
.btn--primary{
  background:var(--c-cyan);
  color:var(--c-night);
  border-color:var(--c-cyan);
}
.btn--primary:hover,
.btn--primary:focus-visible{
  background:var(--c-amber);
  border-color:var(--c-amber);
  transform:translateY(-2px);
}
.btn--ghost{
  background:transparent;
  color:var(--c-cream);
  border-color:var(--line);
}
.btn--ghost:hover,
.btn--ghost:focus-visible{
  color:var(--c-cyan);
  border-color:var(--line-cyan);
  background:rgba(41,224,208,.08);
}

.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0 0 20px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--c-steel);
}
.breadcrumbs li{display:flex;align-items:center;gap:8px;}
.breadcrumbs li + li::before{content:"/";color:var(--c-rock);}
.breadcrumb-link{
  color:var(--c-steel);
  border-bottom:1px solid transparent;
  transition:color var(--t-fast),border-color var(--t-fast);
}
.breadcrumb-link:hover,
.breadcrumb-link:focus-visible{
  color:var(--c-cyan);
  border-bottom-color:var(--c-cyan);
}
.breadcrumbs [aria-current="page"]{color:var(--c-cream);}

.grid{display:grid;gap:var(--gap);}
.grid--bento{grid-template-columns:repeat(12,minmax(0,1fr));}

.card{
  position:relative;
  min-width:0;
  padding:clamp(16px,2vw,24px);
  background:linear-gradient(160deg,rgba(14,42,38,.94) 0%,rgba(11,27,43,.94) 100%);
  border:1px solid var(--line);
  transition:border-color var(--t-fast),background-color var(--t-fast),transform var(--t-fast);
}
.card:hover,
.card:focus-within{
  border-color:var(--line-cyan);
  transform:translateY(-2px);
}
.card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:12px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line-soft);
}
.card-title{
  margin:0;
  font-size:17px;
  font-weight:800;
  letter-spacing:.03em;
  color:var(--c-cream);
}
.card-body{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:var(--fg-dim);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  white-space:nowrap;
  color:var(--c-steel);
  background:rgba(58,68,72,.22);
  border:1px solid var(--line);
}
.tag--moss{
  color:#A9BE8E;
  border-color:rgba(111,127,94,.62);
  background:rgba(111,127,94,.16);
}
.tag--clay{
  color:#E4A181;
  border-color:rgba(180,106,74,.62);
  background:rgba(180,106,74,.16);
}
.tag--cyan{
  color:var(--c-cyan);
  border-color:var(--line-cyan);
  background:rgba(41,224,208,.1);
}
.tag--amber{
  color:var(--c-amber);
  border-color:var(--line-amber);
  background:rgba(245,158,66,.12);
}

.section-label{
  display:block;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--c-moss);
}

.vert-note{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--c-steel);
}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

/* ---------- 8. 图片容器基础规则 ---------- */
.figure-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  background:
    linear-gradient(to right,rgba(58,68,72,.35) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(to bottom,rgba(58,68,72,.35) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(140deg,rgba(58,68,72,.55) 0%,rgba(11,27,43,.95) 100%);
}
.figure-frame img,
.figure-frame picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure-frame--wide{aspect-ratio:16/9;}
.figure-frame--tall{aspect-ratio:3/4;}
.figure-frame--square{aspect-ratio:1/1;}
.figure-frame--folio{aspect-ratio:4/5;}

.figure-caption{
  display:flex;
  align-items:center;
  gap:8px;
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--c-steel);
}

/* ---------- 9. 响应式 ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
  .footer-col--brand{grid-column:1 / -1;}
  .footer-note{max-width:52ch;}
}

@media (max-width:899px){
  .nav-toggle{display:inline-flex;}
  .deck-inner{
    flex-wrap:wrap;
    gap:10px 12px;
    min-height:56px;
    padding-block:8px;
  }
  .nav-toggle{order:1;}
  .deck-cta{order:2;margin-left:auto;padding:9px 14px;font-size:12px;}
  .nav-bar{
    order:3;
    flex:1 0 100%;
    display:none;
    padding-top:8px;
    border-top:1px solid var(--line-soft);
  }
  .nav-bar[data-open]{display:block;}
  .nav-list{flex-direction:column;gap:2px;}
  .nav-link{
    padding:11px 12px;
    border-bottom:1px solid var(--line-soft);
    border-left:2px solid transparent;
  }
  .nav-link:hover,
  .nav-link:focus-visible{
    border-bottom-color:var(--line-soft);
    border-left-color:var(--c-cyan);
  }
  .nav-link[aria-current="page"]{
    color:var(--c-cyan);
    background:rgba(41,224,208,.14);
    border-left-color:var(--c-cyan);
    border-bottom-color:var(--line-soft);
  }
  .nav-link[aria-current="page"]:hover,
  .nav-link[aria-current="page"]:focus-visible{
    color:var(--c-cyan);
    background:rgba(41,224,208,.14);
  }
}

@media (max-width:680px){
  .rail-meta{display:none;}
  .rail-inner{min-height:50px;}
  .brand-mark{width:28px;height:28px;font-size:13px;}
  .brand-name{font-size:14px;letter-spacing:.08em;}
  .brand-line{font-size:10px;letter-spacing:.1em;}
}

@media (max-width:620px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-col--brand{grid-column:auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:400px){
  .nav-toggle-label{display:none;}
  .deck-cta{padding:8px 11px;font-size:11.5px;letter-spacing:.06em;}
}

/* ---------- 10. 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .card:hover,
  .card:focus-within,
  .deck-cta:hover,
  .deck-cta:focus-visible,
  .btn--primary:hover,
  .btn--primary:focus-visible{transform:none;}
}