/* ============================================================
   九游会赛场 · 共享样式 /assets/site.css
   夜场深蓝底 · 看台轨道 · 哨声橙锚点
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;min-height:100vh}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit}
[hidden]{display:none !important}

/* ---------- 2. tokens ---------- */
:root{
  --ink-900:#071427;
  --ink-800:#0B1E3A;
  --ink-700:#122C52;
  --orange:#FF5A1F;
  --orange-soft:#FF8A5B;
  --green:#19C37D;
  --amber:#F5B041;
  --purple:#3B1E5A;
  --white:#E8EDF7;
  --muted:#93A4C4;
  --line:rgba(147,164,196,.18);
  --line-strong:rgba(147,164,196,.3);

  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",ui-monospace,Consolas,monospace;

  --rail-w:96px;
  --maxw:1320px;
  --gutter:clamp(18px,4vw,48px);
  --top-offset:92px;

  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:18px;
  --pill:999px;

  --ease:cubic-bezier(.22,1,.36,1);
  --dur:240ms;
  --dur-fast:160ms;
}

/* ---------- 3. base ---------- */
body{
  background:var(--ink-800);
  color:var(--white);
  font-family:var(--font-sans);
  font-size:clamp(16px,1.05vw,17px);
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(58% 42% at 16% -6%, rgba(255,90,31,.20), transparent 68%),
    radial-gradient(46% 40% at 90% 6%, rgba(59,30,90,.62), transparent 72%),
    radial-gradient(70% 46% at 50% 108%, rgba(25,195,125,.10), transparent 70%);
}
::selection{background:var(--orange);color:#210b02}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
:target{scroll-margin-top:120px}

h1,h2,h3{line-height:1.16;letter-spacing:-.02em;font-weight:900}
h1{font-size:clamp(2.6rem,6vw,5.2rem);line-height:1.06;letter-spacing:-.03em}
h2{font-size:clamp(1.6rem,3vw,2.6rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:clamp(1.12rem,1.6vw,1.4rem);font-weight:700;letter-spacing:-.01em}
p{line-height:1.75}
a{text-decoration:none}

/* ---------- 4. 排版工具 ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.vertical-note{
  writing-mode:vertical-rl;
  font-size:13px;
  letter-spacing:.22em;
  color:var(--muted);
  line-height:1;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:0}
.score{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:clamp(3rem,7vw,6rem);
  line-height:.92;
  letter-spacing:-.04em;
  color:var(--white);
  display:block;
}
.score--amber{color:var(--amber)}
.lead{font-size:clamp(1.02rem,1.4vw,1.16rem);line-height:1.8;color:#C8D3E8;max-width:68ch}
.muted{color:var(--muted)}
.prose{max-width:68ch;font-size:1.02rem}
.prose p + p{margin-top:1.1em}
.prose ul{list-style:disc;padding-left:1.3em;margin-top:.8em}
.prose ol{list-style:decimal;padding-left:1.4em;margin-top:.8em}
.prose li + li{margin-top:.4em}
.prose a{color:var(--orange-soft);border-bottom:1px solid rgba(255,138,91,.4)}

/* ---------- 5. 布局骨架 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{position:relative;padding-block:clamp(48px,7vw,96px)}
.section--deep{background:linear-gradient(180deg,var(--ink-900),var(--ink-800))}
.section--mid{background:linear-gradient(180deg,var(--ink-800),var(--ink-700))}
.section--purple{background:linear-gradient(150deg,rgba(59,30,90,.92),rgba(11,30,58,.98))}
.section--breath{padding-block:clamp(72px,10vw,140px)}

.band{
  position:relative;
  margin-block:clamp(32px,5vw,64px);
  padding-block:clamp(22px,3.4vw,40px);
  background:
    linear-gradient(90deg,rgba(255,90,31,.18),rgba(59,30,90,.55) 52%,rgba(25,195,125,.14));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.band::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--orange),transparent 42%,transparent 62%,var(--green));
  opacity:.7;
}

.grid{display:grid;gap:clamp(16px,2vw,24px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.asym{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,4vw,56px);align-items:start}
.stack-lg > * + *{margin-top:clamp(20px,3vw,40px)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 20px;margin-bottom:clamp(22px,3vw,36px)}
.section-head__note{margin-left:auto}

/* ---------- 6. 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-size:14px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.2;
  white-space:nowrap;
  transition:transform var(--dur-fast) var(--ease),background var(--dur-fast) ease,color var(--dur-fast) ease,box-shadow var(--dur-fast) ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--orange),#FF7A3D);
  color:#210B02;
  box-shadow:0 14px 30px -16px rgba(255,90,31,.95);
}
.btn--primary:hover{background:linear-gradient(135deg,var(--orange-soft),#FFA87F);transform:translateY(-1px)}
.btn--ghost{
  border-color:var(--line-strong);
  background:rgba(232,237,247,.04);
  color:var(--white);
}
.btn--ghost:hover{border-color:var(--orange);background:rgba(255,90,31,.12);transform:translateY(-1px)}
.btn--sm{padding:9px 16px;font-size:13px}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:var(--pill);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--amber);
  background:rgba(245,176,65,.12);
  border:1px solid rgba(245,176,65,.38);
}
.tag--green{color:var(--green);background:rgba(25,195,125,.12);border-color:rgba(25,195,125,.4)}
.tag--purple{color:#C6A8EA;background:rgba(59,30,90,.6);border-color:rgba(155,120,210,.4)}
.tag--orange{color:var(--orange-soft);background:rgba(255,90,31,.14);border-color:rgba(255,90,31,.42)}
.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 16px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(232,237,247,.04);
  font-size:13px;
  font-weight:500;
  color:var(--white);
}
.chip:hover{border-color:var(--orange);color:var(--white)}

/* ---------- 7. 面包屑 ---------- */
.breadcrumbs{position:relative;z-index:1;padding-top:clamp(18px,3vw,30px)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--muted);font-family:var(--font-mono)}
.breadcrumbs__list li{display:flex;align-items:center;gap:8px}
.breadcrumbs__list li + li::before{content:"/";color:rgba(147,164,196,.45)}
.breadcrumbs__list a{color:var(--muted);transition:color var(--dur-fast) ease}
.breadcrumbs__list a:hover{color:var(--orange-soft)}
.breadcrumbs__list [aria-current="page"]{color:var(--white)}

/* ---------- 8. 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    radial-gradient(70% 90% at 20% 0%, rgba(59,30,90,.85), transparent 70%),
    linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(7,20,39,0) 40%,rgba(7,20,39,.62));
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--wide{aspect-ratio:21/9}
.media-frame__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-frame__tag{
  position:absolute;
  left:14px;top:14px;z-index:2;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  padding:4px 10px;
  border-radius:var(--pill);
  color:var(--amber);
  background:rgba(7,20,39,.84);
  border:1px solid rgba(245,176,65,.42);
}
.media-frame__caption{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;font-size:13px;color:var(--white)}
.media-figure{display:block}
.media-figure figcaption{margin-top:10px;font-size:12px;letter-spacing:.08em;color:var(--muted)}

/* ---------- 9. 头部：跳转 + 悬浮胶囊 + 侧边轨道 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-90px;
  z-index:200;
  padding:11px 18px;
  border-radius:var(--pill);
  background:var(--orange);
  color:#210B02;
  font-weight:700;
  font-size:14px;
  transition:top var(--dur-fast) var(--ease);
}
.skip-link:focus{top:16px}

.site-header{position:relative;z-index:60}

.topbar{
  position:fixed;
  z-index:80;
  top:12px;
  left:12px;
  right:12px;
  overflow:hidden;
  border-radius:var(--pill);
  background:rgba(7,20,39,.74);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:52px;
  padding:9px 14px;
  transition:min-height var(--dur) var(--ease),padding var(--dur) var(--ease);
}
[data-scrolled] .topbar{
  background:rgba(7,20,39,.92);
  box-shadow:0 24px 50px -30px rgba(0,0,0,.95);
}
[data-scrolled] .topbar__inner{min-height:46px;padding:6px 12px}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--orange),var(--orange-soft));
  color:#210B02;
  font-size:16px;
  font-weight:900;
  box-shadow:0 10px 22px -14px rgba(255,90,31,.95);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:15px;font-weight:900;letter-spacing:-.01em}
.brand__sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--muted)}

.capsule-nav{flex:1;display:flex;justify-content:center;align-items:center;min-width:0}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:var(--pill);
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  transition:color var(--dur-fast) ease,background var(--dur-fast) ease,box-shadow var(--dur-fast) ease;
}
.nav-link:hover{color:var(--white);background:rgba(232,237,247,.07)}
.nav-link[aria-current="page"]{
  color:var(--white);
  font-weight:700;
  background:rgba(255,90,31,.14);
  box-shadow:inset 0 0 0 1px rgba(255,90,31,.42);
}
.nav-link[aria-current="page"]::before{
  content:"";
  width:6px;height:6px;
  margin-right:8px;
  border-radius:50%;
  background:var(--orange);
  box-shadow:0 0 0 4px rgba(255,90,31,.18);
}

.topbar__aside{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.batch{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
  white-space:nowrap;
}
.batch b{color:var(--amber);font-weight:700}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border-radius:var(--pill);
  border:1px solid var(--line-strong);
  background:rgba(232,237,247,.05);
  color:var(--white);
  font-size:13px;
  font-weight:700;
}
.nav-toggle:hover{border-color:var(--orange);background:rgba(255,90,31,.14)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bar{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform var(--dur-fast) var(--ease),opacity var(--dur-fast) ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.topbar__progress{
  height:2px;
  background:rgba(147,164,196,.16);
  opacity:0;
  transition:opacity var(--dur) ease;
}
[data-scrolled] .topbar__progress{opacity:1}
.progress-bar{
  display:block;
  height:100%;
  width:var(--read,0%);
  background:linear-gradient(90deg,var(--orange),var(--amber));
  transition:width .1s linear;
}

.rail{display:none}
.rail__word{
  writing-mode:vertical-rl;
  font-size:13px;
  letter-spacing:.34em;
  color:var(--muted);
}
.rail-nav{display:flex;flex-direction:column;gap:10px;margin-block:auto}
.rail-dot{
  position:relative;
  display:grid;
  place-items:center;
  width:42px;height:42px;
  border-radius:50%;
}
.rail-dot__dot{
  width:8px;height:8px;
  border-radius:50%;
  background:rgba(147,164,196,.4);
  transition:background var(--dur-fast) ease,box-shadow var(--dur-fast) ease,transform var(--dur-fast) var(--ease);
}
.rail-dot:hover .rail-dot__dot{background:var(--white);transform:scale(1.2)}
.rail-dot[aria-current="page"] .rail-dot__dot{
  background:var(--orange);
  box-shadow:0 0 0 6px rgba(255,90,31,.18);
}
.rail-dot__label{
  position:absolute;
  left:calc(100% + 4px);
  white-space:nowrap;
  padding:5px 12px;
  border-radius:var(--pill);
  background:rgba(7,20,39,.96);
  border:1px solid var(--line-strong);
  color:var(--white);
  font-size:12px;
  opacity:0;
  transform:translateX(-6px);
  pointer-events:none;
  transition:opacity var(--dur-fast) ease,transform var(--dur) var(--ease);
}
.rail-dot:hover .rail-dot__label,
.rail-dot:focus-visible .rail-dot__label{opacity:1;transform:none}
.rail__batch{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  color:var(--amber);
}

/* ---------- 10. 主体偏移 ---------- */
#main-content{
  position:relative;
  z-index:1;
  padding-top:var(--top-offset);
}

/* ---------- 11. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,120px);
  overflow:hidden;
  background:linear-gradient(180deg,var(--ink-900),#050E1C 58%,var(--ink-900));
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--orange),transparent 46%,transparent 58%,var(--green));
  opacity:.75;
}
.site-footer__glow{
  position:absolute;
  inset:auto 0 0 0;
  height:360px;
  pointer-events:none;
  background:
    radial-gradient(58% 100% at 10% 100%, rgba(255,90,31,.20), transparent 70%),
    radial-gradient(52% 96% at 84% 100%, rgba(59,30,90,.7), transparent 74%);
}
.footer__inner{
  position:relative;
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(40px,6vw,76px) var(--gutter) 34px;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1.3fr);
  gap:clamp(28px,4vw,68px);
}
.footer__eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}
.footer__wordmark{
  font-size:clamp(1.9rem,4.4vw,3rem);
  font-weight:900;
  letter-spacing:-.03em;
  line-height:1.06;
}
.footer__wordmark::after{
  content:"";
  display:inline-block;
  width:.2em;height:.2em;
  margin-left:.16em;
  border-radius:50%;
  background:var(--orange);
  vertical-align:baseline;
}
.footer__blurb{margin-top:14px;max-width:44ch;font-size:14px;color:var(--muted);line-height:1.85}
.footer__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

.footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,28px);
}
.footer__col-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--muted);
  margin-bottom:14px;
}
.footer__list li + li{margin-top:2px}
.footer__list a{
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:rgba(232,237,247,.82);
  transition:color var(--dur-fast) ease,transform var(--dur-fast) var(--ease);
}
.footer__list a:hover{color:var(--orange-soft);transform:translateX(3px)}

.footer__info{
  position:relative;
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:22px var(--gutter) 42px;
  border-top:1px solid var(--line);
  display:grid;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}
.footer__contact{max-width:88ch;line-height:1.8}
.footer__address{color:rgba(147,164,196,.85)}
.footer__legal{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(245,176,65,.85);
}

/* ---------- 12. 联赛切换 / 标签页 ---------- */
.tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:6px;
  border-radius:var(--pill);
  background:rgba(7,20,39,.72);
  border:1px solid var(--line);
}
.tabs__tab{
  padding:9px 18px;
  border-radius:var(--pill);
  font-size:13px;
  font-weight:700;
  color:var(--muted);
  transition:color var(--dur-fast) ease,background var(--dur-fast) ease;
}
.tabs__tab:hover{color:var(--white);background:rgba(232,237,247,.08)}
.tabs__tab[aria-selected="true"]{
  background:linear-gradient(135deg,var(--orange),#FF7A3D);
  color:#210B02;
}
.tabs__panel{margin-top:clamp(20px,3vw,32px)}

/* ---------- 13. 显现动效 ---------- */
[data-reveal]{transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)}
html[data-js="on"] [data-reveal]{opacity:0;transform:translateY(18px)}
html[data-js="on"] [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 14. 响应式 ---------- */
@media (min-width:1024px){
  :root{--top-offset:100px}
  .topbar{left:calc(var(--rail-w) + 12px)}
  #main-content{padding-left:var(--rail-w)}
  .site-footer{padding-left:var(--rail-w)}
  .rail{
    display:flex;
    position:fixed;
    top:0;left:0;bottom:0;
    z-index:70;
    width:var(--rail-w);
    flex-direction:column;
    align-items:center;
    gap:16px;
    padding:22px 0 26px;
    background:linear-gradient(180deg,var(--ink-900),var(--ink-800));
    border-right:1px solid var(--line);
  }
}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .capsule-nav{
    position:fixed;
    top:92px;
    left:12px;right:12px;
    z-index:79;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    padding:12px;
    border-radius:28px;
    background:rgba(7,20,39,.98);
    border:1px solid var(--line-strong);
    box-shadow:0 34px 64px -32px rgba(0,0,0,.95);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity var(--dur-fast) ease,transform var(--dur) var(--ease),visibility var(--dur-fast) linear;
  }
  .capsule-nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .capsule-nav .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .capsule-nav .nav-link{padding:14px 16px;font-size:15px;border-radius:var(--radius-md)}
  .footer__inner{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:900px){
  .grid--12{grid-template-columns:minmax(0,1fr)}
  .col-4,.col-5,.col-6,.col-7,.col-8{grid-column:auto}
  .asym{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:860px){
  .footer__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .batch{display:none}
}

@media (max-width:640px){
  :root{--top-offset:86px}
  .brand__sub{display:none}
  .nav-toggle__text{display:none}
  .topbar__progress{height:3px}
  .footer__cols{grid-template-columns:minmax(0,1fr)}
  .footer__contact{font-size:12px}
}

@media (max-width:520px){
  .topbar__cta{display:none}
}

/* ---------- 15. 降级动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  html[data-js="on"] [data-reveal]{opacity:1;transform:none}
  .progress-bar{transition:none}
}