/* ==========================================================
   斗鱼体育 · /assets/site.css
   共享外壳：深海蓝框架 + 暖纸阅读区 + 竞技橙 / 荧光青
   ========================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; text-size-adjust:100%; }
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,table{ 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; }
hr{ border:0; }

/* ---------- 2. 令牌 ---------- */
:root{
  --c-deep:#0B1B33;
  --c-panel:#12294A;
  --c-paper:#F4EFE6;
  --c-cream:#FBF8F2;
  --c-orange:#FF5C1A;
  --c-cyan:#29E0D6;
  --c-ink:#101418;
  --c-night:#C7D2E0;
  --c-orange-soft:#FFD9C2;
  --c-cyan-soft:#CDFAF6;
  --c-green:#3DD68C;
  --c-red:#E2504A;

  --ln-on-deep:rgba(199,210,224,.20);
  --ln-on-paper:rgba(16,20,24,.14);

  /* 语境令牌：由 .section--paper / .section--panel 重映射 */
  --surface:var(--c-deep);
  --surface-alt:var(--c-panel);
  --text:var(--c-night);
  --text-strong:#FFFFFF;
  --text-soft:rgba(199,210,224,.66);
  --line:var(--ln-on-deep);
  --row-alt:rgba(255,255,255,.035);
  --on-accent:var(--c-ink);

  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --radius-xl:28px;
  --radius-pill:999px;
  --cut:28px;

  --space-1:8px; --space-2:16px; --space-3:24px;
  --space-4:32px; --space-5:48px; --space-6:64px;

  --wrap:1240px;
  --head-row:72px;
  --head-tick:44px;
  --head-h:calc(var(--head-row) + var(--head-tick));

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,"Times New Roman",serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-lift:0 20px 44px -30px rgba(4,10,20,.85);
  --read-progress:0;
}
@media (max-width:1024px){
  :root{ --head-row:60px; --head-tick:42px; --cut:22px; }
}

/* ---------- 3. 基础与排版 ---------- */
html{ scroll-behavior:smooth; scroll-padding-top:calc(var(--head-h) + 24px); }
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  background:var(--c-deep);
  color:var(--c-night);
  min-height:100%;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
::selection{ background:var(--c-orange); color:var(--c-ink); }
#main-content{ display:block; }
#main-content > :first-child:not(.page-top--flush){
  padding-top:calc(var(--head-h) + 28px);
}

.t-display{ font-family:var(--font-display); font-weight:700; font-size:clamp(28px,4vw,56px); line-height:1.14; letter-spacing:-.01em; color:var(--text-strong); }
.t-title{ font-family:var(--font-display); font-weight:700; font-size:clamp(22px,2.4vw,34px); line-height:1.26; color:var(--text-strong); }
.t-lead{ font-size:clamp(16px,1.3vw,19px); line-height:1.75; color:var(--text-soft); max-width:62ch; }
.t-label{ font-size:12px; font-weight:600; letter-spacing:.08em; color:var(--text-soft); }
.num{ font-family:var(--font-mono); font-variant-numeric:tabular-nums; font-feature-settings:"tnum" 1; letter-spacing:-.01em; }
.link-more{ display:inline-flex; align-items:center; gap:8px; font-weight:600; color:var(--c-orange); border-bottom:1px solid transparent; transition:border-color .16s var(--ease),color .16s var(--ease); }
.link-more:hover{ border-color:currentColor; color:#FF8A3D; }
.hairline{ height:1px; background:var(--line); }

/* ---------- 4. 布局 ---------- */
.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:clamp(16px,4vw,48px); }
.wrap--narrow{ max-width:880px; }

.grid{ display:grid; gap:var(--gap,clamp(16px,2.2vw,28px)); }
.grid--2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid--3{ grid-template-columns:repeat(1,minmax(0,1fr)); }
.grid--12{ grid-template-columns:repeat(12,minmax(0,1fr)); }
.grid--12 > *{ grid-column:span 12; }
@media (min-width:768px){
  .grid--3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
  .grid--12 > .g-3,
  .grid--12 > .g-4,
  .grid--12 > .g-5,
  .grid--12 > .g-6{ grid-column:span 6; }
}
@media (min-width:1080px){
  .grid--12 > .g-3{ grid-column:span 3; }
  .grid--12 > .g-4{ grid-column:span 4; }
  .grid--12 > .g-5{ grid-column:span 5; }
  .grid--12 > .g-6{ grid-column:span 6; }
  .grid--12 > .g-7{ grid-column:span 7; }
  .grid--12 > .g-8{ grid-column:span 8; }
  .grid--12 > .g-9{ grid-column:span 9; }
}
@media (max-width:640px){
  .grid--2{ grid-template-columns:repeat(1,minmax(0,1fr)); }
}

.section{ position:relative; padding-block:clamp(56px,8vw,104px); }
.section--deep{ background:var(--c-deep); color:var(--c-night); }
.section--panel{ background:var(--c-panel); color:var(--c-night); }
.section--paper,
.ctx-paper{
  --surface:var(--c-paper);
  --surface-alt:var(--c-cream);
  --text:var(--c-ink);
  --text-strong:var(--c-ink);
  --text-soft:#55606F;
  --line:var(--ln-on-paper);
  --row-alt:rgba(16,20,24,.035);
  background:var(--surface);
  color:var(--text);
}
.section-head{
  display:flex; flex-wrap:wrap; align-items:flex-end; justify-content:space-between;
  gap:var(--space-3); margin-bottom:clamp(24px,3vw,40px);
}
.section-head__side{ display:flex; align-items:center; gap:16px; flex-wrap:wrap; }

.index-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--surface-alt);
}
.index-band__row{
  display:flex; align-items:center; gap:clamp(14px,2.4vw,32px);
  padding-block:14px; overflow-x:auto; scrollbar-width:none;
}
.index-band__row::-webkit-scrollbar{ display:none; }
.index-band__item{ display:inline-flex; align-items:baseline; gap:8px; white-space:nowrap; font-size:13px; color:var(--text-soft); }
.index-band__n{ font-family:var(--font-mono); font-size:12px; color:var(--c-cyan); }
.section--paper .index-band__n{ color:#0E7C79; }

.rule-ticks{
  height:10px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 14px);
  border-bottom:1px solid var(--line);
}

.frame-box{ position:relative; }
.frame-corners{
  position:absolute; inset:-1px; pointer-events:none;
  --tick:var(--c-cyan);
  background-image:
    linear-gradient(var(--tick) 0 0),linear-gradient(var(--tick) 0 0),
    linear-gradient(var(--tick) 0 0),linear-gradient(var(--tick) 0 0),
    linear-gradient(var(--tick) 0 0),linear-gradient(var(--tick) 0 0),
    linear-gradient(var(--tick) 0 0),linear-gradient(var(--tick) 0 0);
  background-repeat:no-repeat;
  background-size:16px 1px,1px 16px,16px 1px,1px 16px,16px 1px,1px 16px,16px 1px,1px 16px;
  background-position:0 0,0 0,100% 0,100% 0,0 100%,0 100%,100% 100%,100% 100%;
}

/* ---------- 5. 通用组件 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 24px; border:1px solid transparent; border-radius:var(--radius-pill);
  font-size:15px; font-weight:700; letter-spacing:.02em; white-space:nowrap;
  transition:background-color .16s var(--ease),color .16s var(--ease),
             border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.btn--sm{ padding:9px 18px; font-size:14px; }
.btn--primary{
  background:var(--c-orange); color:var(--c-ink);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
}
.btn--primary:hover{ background:#FF7A44; transform:translateY(-2px); }
.btn--ghost{ border-color:var(--line); color:var(--text); }
.btn--ghost:hover{ border-color:var(--c-cyan); color:var(--c-cyan); }
.btn--block{ width:100%; }

.chip{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 12px; border:1px solid var(--line); border-radius:var(--radius-pill);
  font-size:12px; font-weight:600; letter-spacing:.06em; color:var(--text);
}
.chip--orange{ background:var(--c-orange); border-color:transparent; color:var(--c-ink); }
.chip--soft{ background:var(--c-orange-soft); border-color:transparent; color:var(--c-ink); }
.chip--cyan{ background:var(--c-cyan-soft); border-color:transparent; color:var(--c-ink); }
.chip--live::before{
  content:""; width:6px; height:6px; border-radius:50%;
  background:var(--c-cyan); box-shadow:0 0 0 3px rgba(41,224,214,.22);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.35; } }

.placard{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:12px; letter-spacing:.08em;
  color:var(--text-soft);
}
.placard::before{
  content:""; width:7px; height:7px; flex:none; background:var(--c-orange);
  transform:rotate(45deg);
}
.placard--cyan::before{ background:var(--c-cyan); }
.placard--bare{ letter-spacing:.1em; }

.stat{
  display:flex; flex-direction:column; gap:2px;
  padding:16px 18px; background:var(--surface-alt);
  border-left:2px solid var(--c-orange);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.stat__num{ font-family:var(--font-mono); font-variant-numeric:tabular-nums; font-size:clamp(24px,3vw,34px); font-weight:700; line-height:1.2; color:var(--c-orange); }
.stat__label{ font-size:12px; letter-spacing:.08em; color:var(--text-soft); }
.stat--cyan{ border-left-color:var(--c-cyan); }
.stat--cyan .stat__num{ color:var(--c-cyan); }
.section--paper .stat--cyan .stat__num{ color:#0E7C79; }
.stat--orange{ border-left-color:transparent; background:var(--c-orange); color:var(--c-ink); }
.stat--orange .stat__num{ color:var(--c-ink); }
.stat--orange .stat__label{ color:rgba(16,20,24,.68); }

.card{
  background:var(--surface-alt); border:1px solid var(--line);
  border-radius:var(--radius-lg); padding:clamp(20px,2.6vw,32px);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card--hover:hover{ transform:translateY(-4px); border-color:var(--c-cyan); box-shadow:var(--shadow-lift); }

.panel{
  position:relative; display:block; padding:1px; background:var(--line);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.panel__in{
  background:var(--surface-alt); color:var(--text);
  padding:clamp(20px,2.6vw,36px);
  clip-path:polygon(0 0,calc(100% - (var(--cut) - 1px)) 0,100% calc(var(--cut) - 1px),100% 100%,0 100%);
}
.panel--cyan{ background:var(--c-cyan); }
.panel--orange{ background:var(--c-orange); }
.panel--flat{ padding:0; background:none; clip-path:none; }
.panel--flat .panel__in{ clip-path:none; border-radius:var(--radius-lg); }

.media-frame{
  position:relative; overflow:hidden; display:block;
  background:linear-gradient(150deg,#12294A 0%,#0B1B33 55%,#173A66 100%);
  border-radius:var(--radius-md);
}
.media-frame::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    linear-gradient(115deg,transparent 38%,rgba(41,224,214,.16) 50%,transparent 62%),
    radial-gradient(120% 80% at 82% 8%,rgba(255,92,26,.24),transparent 62%);
}
.media-frame img{ width:100%; height:100%; object-fit:cover; }
.media-frame--16x9{ aspect-ratio:16/9; }
.media-frame--4x3{ aspect-ratio:4/3; }
.media-frame--1x1{ aspect-ratio:1/1; }
.media-frame--3x4{ aspect-ratio:3/4; }
.media-frame--21x9{ aspect-ratio:21/9; }
.media-frame--chamfer{
  border-radius:0;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.media-frame__tag{ position:absolute; left:16px; bottom:16px; z-index:2; }

.data-table{ width:100%; font-size:15px; }
.data-table th{
  background:var(--surface-alt); color:var(--text-strong);
  font-size:12px; font-weight:700; letter-spacing:.08em; text-align:left;
  padding:12px 14px; border-bottom:1px solid var(--line); white-space:nowrap;
}
.data-table td{ padding:12px 14px; border-bottom:1px solid var(--line); vertical-align:middle; }
.data-table tbody tr:nth-child(even){ background:var(--row-alt); }
.data-table tbody tr{ transition:background-color .16s var(--ease),color .16s var(--ease); }
.data-table tbody tr:hover{ background:var(--c-cyan-soft); color:var(--c-ink); }
.data-table tbody tr:hover .data-table__num,
.data-table tbody tr:hover .data-table__muted{ color:var(--c-ink); }
.data-table__num{ text-align:right; font-family:var(--font-mono); font-variant-numeric:tabular-nums; }
.data-table__muted{ color:var(--text-soft); }
.data-table__sort{ display:inline-flex; align-items:center; gap:6px; color:inherit; font:inherit; }
.data-table__sort::after{ content:"↕"; font-size:11px; opacity:.6; }
.data-table__row[hidden]{ display:none; }

.breadcrumb{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--text-soft); }
.breadcrumb li{ display:inline-flex; align-items:center; gap:8px; }
.breadcrumb li + li::before{ content:"›"; color:var(--line); }
.breadcrumb a:hover{ color:var(--c-cyan); }

.prose{ max-width:68ch; }
.prose > * + *{ margin-top:var(--space-3); }
.prose h2{ font-family:var(--font-display); font-weight:700; font-size:clamp(20px,2vw,26px); color:var(--text-strong); }
.prose h3{ font-size:18px; font-weight:700; color:var(--text-strong); }
.prose ul{ display:grid; gap:10px; }
.prose li{ position:relative; padding-left:20px; }
.prose li::before{ content:""; position:absolute; left:0; top:.7em; width:7px; height:7px; background:var(--c-orange); transform:rotate(45deg); }
.prose strong{ color:var(--text-strong); }

.aurora{ position:absolute; inset:0; overflow:hidden; pointer-events:none; }
.aurora::before,
.aurora::after{
  content:""; position:absolute; width:56vw; height:56vw; border-radius:50%;
  filter:blur(72px); opacity:.24;
  animation:drift 26s ease-in-out infinite alternate;
}
.aurora::before{ background:radial-gradient(circle,var(--c-orange),transparent 62%); top:-22vw; left:-12vw; }
.aurora::after{ background:radial-gradient(circle,var(--c-cyan),transparent 62%); bottom:-26vw; right:-16vw; animation-duration:34s; animation-direction:alternate-reverse; }
@keyframes drift{
  from{ transform:translate3d(0,0,0); }
  to{ transform:translate3d(5vw,4vw,0); }
}

/* ---------- 6. 头部 ---------- */
.site-head{
  position:fixed; top:0; left:0; right:0; z-index:60;
  color:#fff;
  transition:background-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.site-head::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(180deg,rgba(11,27,51,.94) 0%,rgba(11,27,51,.62) 64%,rgba(11,27,51,0) 100%);
  transition:opacity 180ms var(--ease);
}
.site-head.is-solid{ background:var(--c-deep); box-shadow:0 1px 0 var(--ln-on-deep),0 24px 48px -40px rgba(0,0,0,.95); }
.site-head.is-solid::before{ opacity:0; }
.site-head__inner{
  position:relative; z-index:1;
  width:100%; max-width:var(--wrap); margin-inline:auto;
  padding-inline:clamp(16px,4vw,48px);
  min-height:var(--head-row);
  display:flex; align-items:center; gap:clamp(10px,1.8vw,26px);
}
.site-head__actions{ display:flex; align-items:center; gap:10px; }
.site-head__cta{ flex:none; }

.brand{ display:inline-flex; align-items:center; gap:12px; flex:none; }
.brand__mark{
  position:relative; width:38px; height:38px; flex:none;
  background:linear-gradient(140deg,var(--c-orange),#FF8A3D);
  clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%);
  transition:transform .18s var(--ease);
}
.brand__mark::before{
  content:""; position:absolute; inset:8px;
  border:1.5px solid var(--c-cyan);
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand__mark::after{
  content:""; position:absolute; right:7px; bottom:7px;
  width:6px; height:6px; border-radius:50%; background:var(--c-ink);
}
.brand:hover .brand__mark{ transform:translateY(-2px); }
.brand__text{ display:flex; flex-direction:column; line-height:1.15; }
.brand__name{ font-size:17px; font-weight:800; letter-spacing:.02em; color:#fff; }
.brand__line{ font-family:var(--font-mono); font-size:10px; letter-spacing:.14em; color:rgba(199,210,224,.72); }
.brand--foot{ margin-bottom:18px; }

.site-nav{ margin-left:auto; }
.site-nav__list{ display:flex; align-items:center; gap:2px; }
.site-nav__item{ display:block; }
.site-nav__link{
  position:relative; display:inline-flex; align-items:baseline; gap:8px;
  padding:10px 14px; border-radius:var(--radius-pill);
  font-size:15px; font-weight:600; color:rgba(199,210,224,.88);
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.site-nav__index{ font-family:var(--font-mono); font-size:10px; letter-spacing:.06em; color:var(--c-cyan); opacity:.85; }
.site-nav__link:hover{ color:#fff; background:rgba(41,224,214,.10); }
.site-nav__link[aria-current="page"]{ color:#fff; background:rgba(255,92,26,.18); }
.site-nav__link[aria-current="page"]::after{
  content:""; position:absolute; left:14px; right:14px; bottom:3px; height:2px;
  border-radius:2px; background:var(--c-orange);
}

.nav-toggle{
  display:none; align-items:center; gap:8px; height:44px; padding:0 14px;
  border:1px solid var(--ln-on-deep); border-radius:var(--radius-pill);
  font-size:14px; font-weight:600; color:#E7EEF8;
  transition:background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle__bars{ position:relative; width:18px; height:12px; flex:none; }
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:""; position:absolute; left:0; right:0; height:2px; border-radius:2px;
  background:currentColor;
  transition:transform .18s var(--ease),top .18s var(--ease),bottom .18s var(--ease);
}
.nav-toggle__bars::before{ top:0; }
.nav-toggle__bars::after{ bottom:0; }
.nav-toggle:hover{ background:rgba(41,224,214,.12); }
.nav-toggle[aria-expanded="true"]{ border-color:var(--c-cyan); color:#fff; background:rgba(41,224,214,.14); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{ top:5px; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{ bottom:5px; transform:rotate(-45deg); }

.site-head__ticker{
  position:relative; z-index:1;
  background:rgba(11,27,51,.62);
  border-top:1px solid rgba(199,210,224,.12);
  transition:background-color 180ms var(--ease);
}
.site-head.is-solid .site-head__ticker{ background:var(--c-panel); }
.site-head__ticker-inner{
  width:100%; max-width:var(--wrap); margin-inline:auto;
  padding-inline:clamp(16px,4vw,48px);
  min-height:var(--head-tick);
  display:flex; align-items:center; gap:clamp(12px,2vw,24px);
}
.site-head__note{
  margin-left:auto; flex:none;
  font-size:12px; letter-spacing:.06em; color:rgba(199,210,224,.66); white-space:nowrap;
}
.league-switch{
  display:flex; align-items:center; gap:6px;
  overflow-x:auto; scrollbar-width:none; padding-block:6px;
}
.league-switch::-webkit-scrollbar{ display:none; }
.league-switch__btn{
  flex:none; padding:7px 16px;
  border:1px solid var(--ln-on-deep); border-radius:var(--radius-pill);
  font-size:13px; font-weight:600; letter-spacing:.02em; color:var(--c-night);
  transition:background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.league-switch__btn:hover{ border-color:var(--c-cyan); color:var(--c-cyan); }
.league-switch__btn[aria-checked="true"]{ background:var(--c-orange); border-color:var(--c-orange); color:var(--c-ink); }

.site-head__rule{ position:relative; z-index:1; height:2px; background:rgba(199,210,224,.16); overflow:hidden; }
.site-head__rule::after{
  content:""; position:absolute; inset:0; transform-origin:left center;
  transform:scaleX(var(--read-progress,0));
  background:linear-gradient(90deg,var(--c-cyan),var(--c-orange));
}

.frame-rail{
  display:none; position:fixed; left:0; top:0; bottom:0; width:20px; z-index:55;
  pointer-events:none;
  background-color:rgba(11,27,51,.35);
  background-image:repeating-linear-gradient(180deg,rgba(199,210,224,.28) 0 1px,transparent 1px 14px);
  border-right:1px solid rgba(199,210,224,.10);
}
.frame-rail__fill{
  position:absolute; right:-1px; top:0; width:2px; height:calc(var(--read-progress,0) * 100%);
  background:linear-gradient(180deg,var(--c-cyan),var(--c-orange));
  box-shadow:0 0 12px rgba(255,92,26,.55);
  transition:height .12s linear;
}
@media (min-width:1320px){ .frame-rail{ display:block; } }

@media (max-width:1024px){
  .site-head__actions{ margin-left:auto; }
  .nav-toggle{ display:inline-flex; }
  .site-nav{
    position:fixed; left:0; right:0; top:var(--head-h); bottom:0; margin:0; z-index:59;
    padding:8px clamp(16px,4vw,32px) 48px;
    background:var(--c-deep); border-top:1px solid var(--ln-on-deep);
    overflow-y:auto; display:none;
  }
  .site-nav[data-open]{ display:block; animation:navIn .22s var(--ease) both; }
  .site-nav__list{ flex-direction:column; align-items:stretch; gap:0; }
  .site-nav__link{
    display:flex; align-items:center; gap:14px;
    padding:18px 6px; border-radius:0; font-size:18px; color:#E7EEF8;
    border-bottom:1px solid var(--ln-on-deep);
  }
  .site-nav__link:hover{ background:rgba(41,224,214,.07); }
  .site-nav__link[aria-current="page"]{ background:transparent; box-shadow:inset 3px 0 0 var(--c-orange); padding-left:16px; }
  .site-nav__link[aria-current="page"]::after{ display:none; }
  .site-nav__index{ font-size:12px; }
  body.has-nav-open{ overflow:hidden; }
}
@keyframes navIn{ from{ opacity:0; transform:translateY(-8px); } to{ opacity:1; transform:none; } }

@media (max-width:640px){
  .site-head__cta{ display:none; }
  .site-head__note{ display:none; }
}

/* ---------- 7. 页脚 ---------- */
.site-foot{
  position:relative; overflow:hidden;
  background:var(--c-deep); color:var(--c-night);
  border-top:1px solid var(--ln-on-deep);
}
.site-foot::before{
  content:""; position:absolute; top:0; left:0; right:0; height:10px;
  background-image:repeating-linear-gradient(90deg,rgba(199,210,224,.24) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.site-foot__aurora{ opacity:.5; }
.site-foot__inner{ position:relative; z-index:1; padding-block:clamp(48px,7vw,88px) clamp(32px,5vw,56px); }
.site-foot__grid{ align-items:start; }
.site-foot__brand{ display:flex; flex-direction:column; }
.site-foot__line{ font-size:15px; line-height:1.7; color:var(--c-night); max-width:34ch; }
.site-foot__note{
  margin-top:14px; padding-top:14px; border-top:1px solid var(--ln-on-deep);
  font-size:13px; line-height:1.7; color:rgba(199,210,224,.72); max-width:36ch;
}
.site-foot__note .num{ color:var(--c-cyan); }
.site-foot__nav{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:var(--space-3); }
.site-foot__col{ min-width:0; }
.site-foot__title{
  font-family:var(--font-mono); font-size:12px; font-weight:600; letter-spacing:.08em;
  color:rgba(199,210,224,.6); margin-bottom:14px;
}
.site-foot__list{ display:grid; gap:10px; }
.site-foot__list a{
  display:inline-block; font-size:15px; color:var(--c-night);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.site-foot__list a:hover{ color:#fff; border-color:var(--c-orange); transform:translateX(2px); }
.site-foot__contact{ min-width:0; }
.site-foot__cta{ margin-top:18px; }
.contact-list{ display:grid; gap:10px; }
.contact-list__item{ display:grid; grid-template-columns:auto 1fr; gap:12px; align-items:baseline; font-size:14px; }
.contact-list__key{
  font-family:var(--font-mono); font-size:11px; letter-spacing:.08em;
  color:rgba(199,210,224,.55);
}
.contact-list__val{ font-family:var(--font-mono); font-variant-numeric:tabular-nums; color:#E7EEF8; word-break:break-word; }
.site-foot__base{ position:relative; z-index:1; border-top:1px solid var(--ln-on-deep); background:rgba(18,41,74,.5); }
.site-foot__base-inner{
  display:flex; flex-wrap:wrap; align-items:center; gap:12px 24px;
  padding-block:20px;
}
.site-foot__legal{ font-size:13px; color:rgba(199,210,224,.72); }
.site-foot__legal--soft{ font-size:12px; color:rgba(199,210,224,.5); }

.to-top{
  margin-left:auto; display:inline-flex; align-items:center; gap:8px;
  padding:8px 16px; border:1px solid var(--ln-on-deep); border-radius:var(--radius-pill);
  font-size:13px; font-weight:600; color:#E7EEF8;
  opacity:0; visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.to-top[data-visible]{ opacity:1; visibility:visible; }
.to-top:hover{ border-color:var(--c-cyan); color:var(--c-cyan); }
.to-top__n{ font-family:var(--font-mono); color:var(--c-orange); }

@media (max-width:1024px){
  .site-foot__nav{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:var(--space-3) var(--space-2); }
}
@media (max-width:640px){
  .site-foot__nav{ grid-template-columns:repeat(1,minmax(0,1fr)); }
  .site-foot__base-inner{ flex-direction:column; align-items:flex-start; }
  .to-top{ margin-left:0; }
}

/* ---------- 8. 无障碍与动效 ---------- */
.skip-link{
  position:absolute; left:12px; top:-64px; z-index:90;
  padding:10px 20px; border-radius:var(--radius-pill);
  background:var(--c-cyan); color:var(--c-ink); font-size:14px; font-weight:700;
  transition:top .16s var(--ease);
}
.skip-link:focus{ top:12px; }

:focus-visible{ outline:2px solid var(--c-cyan); outline-offset:3px; border-radius:4px; }
.btn:focus-visible,
.league-switch__btn:focus-visible,
.nav-toggle:focus-visible,
.to-top:focus-visible,
.site-nav__link:focus-visible,
.skip-link:focus{
  outline:0;
  box-shadow:0 0 0 2px var(--surface),0 0 0 4px var(--c-cyan);
}
.skip-link:focus{ box-shadow:0 0 0 2px var(--c-deep),0 0 0 4px var(--c-cyan); }

[data-reveal]{
  opacity:0; transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-in{ opacity:1; transform:none; }

html[data-read="night"] .section--paper,
html[data-read="night"] .ctx-paper{
  --surface:#0A1626;
  --surface-alt:#12294A;
  --text:#E7EEF8;
  --text-strong:#FFFFFF;
  --text-soft:#A9B8CC;
  --line:rgba(199,210,224,.16);
  --row-alt:rgba(255,255,255,.04);
}
html[data-read="night"] .section--paper .index-band__n,
html[data-read="night"] .ctx-paper .index-band__n{ color:var(--c-cyan); }

.read-toggle{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 16px; border:1px solid var(--line); border-radius:var(--radius-pill);
  font-size:13px; font-weight:600; color:var(--text);
  background:var(--surface-alt);
}
.read-toggle__on{ display:none; }
html[data-read="night"] .read-toggle__on{ display:inline; }
html[data-read="night"] .read-toggle__off{ display:none; }

@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; }
  .aurora::before,.aurora::after{ animation:none; }
}