/* ===== 星空体育站 /assets/site.css ===== */

/* --- reset --- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit}
button{font:inherit;color:inherit}
html.is-nav-open{overflow:hidden}

/* --- tokens --- */
:root{
  --ink-navy:#070C1E;
  --map-navy:#0E1730;
  --star-gold:#F4C542;
  --pitch-green:#2FA36B;
  --data-cyan:#7E8CA3;
  --body-blue:#A9B5C7;
  --hot-orange:#FF6A2B;
  --paper:#F6F1E4;
  --line-white:#FFFFFF;
  --divider:#1B2236;
  --rail-w:116px;
  --topbar-h:62px;
  --wrap-max:1180px;
  --display:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* --- base --- */
body{
  padding-top:var(--topbar-h);
  font-family:var(--display);
  font-size:17px;
  line-height:1.75;
  color:var(--body-blue);
  background-color:var(--ink-navy);
  background-image:
    radial-gradient(1200px 620px at 82% -12%,rgba(244,197,66,.075),transparent 62%),
    radial-gradient(900px 540px at 4% 6%,rgba(47,163,107,.07),transparent 60%),
    radial-gradient(1.2px 1.2px at 18% 22%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1.2px 1.2px at 62% 12%,rgba(255,255,255,.35),transparent 100%),
    radial-gradient(1.4px 1.4px at 86% 44%,rgba(244,197,66,.5),transparent 100%),
    radial-gradient(1.2px 1.2px at 34% 74%,rgba(255,255,255,.26),transparent 100%);
  background-repeat:no-repeat;
}
::selection{background:var(--star-gold);color:#0A0F1F}
:focus-visible{outline:2px solid var(--star-gold);outline-offset:3px;border-radius:4px}

/* --- utilities --- */
.wrap{width:100%;max-width:var(--wrap-max);margin-inline:auto;padding-inline:clamp(20px,5vw,48px)}
.wrap--prose{max-width:780px}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.mono{font-family:var(--mono)}
.skip-link{position:absolute;left:14px;top:-64px;z-index:200;padding:10px 20px;border-radius:999px;background:var(--star-gold);color:#0A0F1F;font-size:13px;font-weight:700;text-decoration:none;transition:top .2s var(--ease)}
.skip-link:focus{top:12px}

/* --- typography --- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--star-gold)}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.75}
.h-display{font-size:clamp(36px,6.6vw,82px);font-weight:900;line-height:1.04;letter-spacing:-.02em;color:var(--line-white)}
.h-section{font-size:clamp(23px,3.4vw,40px);font-weight:800;line-height:1.2;letter-spacing:-.01em;color:var(--line-white)}
.h-sub{font-size:16px;font-weight:600;letter-spacing:.02em;color:var(--line-white)}
.lede{font-size:clamp(16px,1.5vw,19px);line-height:1.8;color:var(--body-blue);max-width:40ch}
.body{max-width:38em}
.rule{height:1px;border:0;margin:clamp(28px,4vw,52px) 0;background:linear-gradient(90deg,var(--divider),rgba(27,34,54,0))}

/* --- grid --- */
.grid{display:grid;gap:clamp(20px,3vw,40px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--asym{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.grid--asym-r{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.bleed-right{margin-right:calc(-1*clamp(0px,6vw,92px))}
.band{background:var(--map-navy)}
.band--deep{background:#050912}

/* --- buttons --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;padding:13px 28px;border-radius:999px;border:1px solid transparent;font-size:14px;font-weight:700;letter-spacing:.06em;text-decoration:none;cursor:pointer;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.btn--gold{background:var(--star-gold);color:#0A0F1F}
.btn--gold:hover{background:#FFD766;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(169,181,199,.34);color:var(--line-white)}
.btn--ghost:hover{border-color:var(--star-gold);color:var(--star-gold);transform:translateY(-2px)}
.btn--paper{background:var(--paper);color:#151A26}
.btn--paper:hover{transform:translateY(-2px)}
.btn--sm{padding:9px 18px;font-size:12px;letter-spacing:.1em}

/* --- tags & stats --- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;border:1px solid currentColor;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--data-cyan)}
.tag--gold{color:var(--star-gold)}
.tag--green{color:var(--pitch-green)}
.tag--hot{color:var(--hot-orange)}
.tag--paper{color:#151A26;background:var(--paper);border-color:transparent}
.tag--hot.is-pulse{animation:hotPulse .9s ease-out 1}
@keyframes hotPulse{0%{box-shadow:0 0 0 0 rgba(255,106,43,.6)}100%{box-shadow:0 0 0 14px rgba(255,106,43,0)}}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__num{font-family:var(--mono);font-weight:700;font-size:clamp(26px,3vw,40px);line-height:1;letter-spacing:-.02em;color:var(--line-white)}
.stat__label{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--data-cyan)}
.stat__num.is-flip{animation:scoreFlip .12s linear 1}
@keyframes scoreFlip{0%{opacity:.15;transform:translateY(-4px)}100%{opacity:1;transform:none}}

/* --- sheets --- */
.sheet{position:relative;padding:clamp(20px,2.4vw,30px);border:1px solid rgba(7,12,30,.14);border-radius:4px;background:var(--paper);color:#151A26;box-shadow:0 20px 44px -26px rgba(0,0,0,.92);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.sheet:hover{transform:translateY(-4px);border-color:rgba(7,12,30,.28);box-shadow:0 30px 54px -28px rgba(0,0,0,.96)}
.sheet--dark{background:var(--map-navy);color:var(--body-blue);border-color:var(--divider)}
.sheet--dark:hover{border-color:rgba(244,197,66,.5)}
.sheet--tilt{transform:rotate(-.7deg)}
.sheet--tilt:hover{transform:rotate(-.7deg) translateY(-4px)}
.sheet--tilt-r{transform:rotate(.8deg)}
.sheet--tilt-r:hover{transform:rotate(.8deg) translateY(-4px)}
.stack{display:flex;flex-direction:column;gap:20px}
.stack--overlap{gap:0}
.stack--overlap>*{position:relative}
.stack--overlap>*:nth-child(2){margin-top:-24px;margin-left:26px}
.stack--overlap>*:nth-child(3){margin-top:-24px;margin-left:52px}
.stack--overlap>*:nth-child(1){z-index:3}
.stack--overlap>*:nth-child(2){z-index:2}
.stack--overlap>*:nth-child(3){z-index:1}

/* --- chapters --- */
.chapter{position:relative;padding:clamp(56px,8vw,112px) 0}
.chapter+.chapter{border-top:1px solid rgba(27,34,54,.85)}
.chapter__index{display:inline-flex;align-items:center;gap:12px;font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--data-cyan);transition:color .3s var(--ease)}
.chapter__index::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--divider);transition:background .3s var(--ease),box-shadow .3s var(--ease)}
.chapter.is-current .chapter__index{color:var(--star-gold)}
.chapter.is-current .chapter__index::before{background:var(--star-gold);box-shadow:0 0 0 4px rgba(244,197,66,.16)}

/* --- data table --- */
.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table th{padding:10px 12px;text-align:left;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--data-cyan);border-bottom:1px solid var(--divider)}
.data-table td{padding:12px;border-bottom:1px solid rgba(27,34,54,.72);color:var(--body-blue)}
.data-table tbody tr:nth-child(even){background:rgba(27,34,54,.34)}
.data-table td .num{font-family:var(--mono);color:var(--line-white)}

/* --- breadcrumb --- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 20px;padding:0;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--data-cyan)}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:#39445e}
.breadcrumb a{color:var(--data-cyan);text-decoration:none}
.breadcrumb a:hover{color:var(--star-gold)}

/* --- media --- */
.media{position:relative;overflow:hidden;border:1px solid var(--divider);border-radius:6px;background:linear-gradient(140deg,var(--map-navy),#050912 72%);aspect-ratio:16/9}
.media>img,.media>svg{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--portrait{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media--frame{padding:10px;background:var(--paper);border-color:rgba(7,12,30,.16);border-radius:4px}
.media--frame>img,.media--frame>svg{border-radius:2px}
.media__cap{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--body-blue);background:linear-gradient(180deg,rgba(5,9,18,0),rgba(5,9,18,.92))}
.media--frame .media__cap{color:#2A3242;background:linear-gradient(180deg,rgba(246,241,228,0),rgba(246,241,228,.95))}

/* --- reveal --- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .62s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* --- read progress --- */
.read-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:70;background:rgba(255,255,255,.06);pointer-events:none}
.read-progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--pitch-green),var(--star-gold));box-shadow:0 0 12px rgba(244,197,66,.5)}

/* --- topbar --- */
.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);z-index:60;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;background:rgba(7,12,30,.94);border-bottom:1px solid var(--divider);backdrop-filter:blur(10px)}
.topbar__brand{display:inline-flex;align-items:center;gap:9px;text-decoration:none}
.topbar__mark{display:grid;place-items:center;color:var(--star-gold)}
.topbar__name{font-size:15px;font-weight:800;letter-spacing:.08em;color:var(--line-white)}
.nav-toggle{display:inline-flex;align-items:center;gap:9px;padding:9px 14px;border:1px solid var(--divider);border-radius:999px;background:transparent;color:var(--line-white);font-size:12px;letter-spacing:.12em;cursor:pointer;transition:border-color .18s var(--ease),color .18s var(--ease)}
.nav-toggle:hover{border-color:var(--star-gold);color:var(--star-gold)}
.nav-toggle__bars{position:relative;width:16px;height:10px;flex:none}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:16px;height:1px;background:currentColor;transition:transform .22s var(--ease)}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-4.5px) rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}

/* --- rail nav --- */
.rail{position:fixed;top:var(--topbar-h);bottom:0;left:0;z-index:55;display:flex;flex-direction:column;width:280px;max-width:86vw;padding:22px 16px 18px;overflow-y:auto;background:linear-gradient(180deg,var(--map-navy),var(--ink-navy));border-right:1px solid var(--divider);box-shadow:24px 0 60px -40px rgba(0,0,0,.95);transform:translateX(-102%);visibility:hidden;transition:transform .32s var(--ease),visibility 0s linear .32s}
.rail[data-open]{transform:none;visibility:visible;transition:transform .32s var(--ease),visibility 0s}
.rail__brand{display:flex;flex-direction:column;align-items:center;gap:8px;padding-bottom:16px;border-bottom:1px solid var(--divider);text-decoration:none}
.rail__mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid rgba(244,197,66,.45);border-radius:50%;color:var(--star-gold)}
.rail__wordmark{font-size:14px;font-weight:800;letter-spacing:.08em;color:var(--line-white)}
.rail__sub{font-family:var(--mono);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--data-cyan)}
.rail__nav{margin-top:24px}
.rail__list{position:relative;display:flex;flex-direction:column;gap:2px}
.rail__list::before{content:"";position:absolute;left:7px;top:12px;bottom:12px;width:1px;background:var(--divider)}
.rail__item{margin:0}
.rail__link{position:relative;display:grid;grid-template-columns:15px 1fr;align-items:center;column-gap:10px;padding:10px 8px 10px 0;border-radius:8px;text-decoration:none;transition:background .18s var(--ease)}
.rail__link:hover{background:rgba(244,197,66,.06)}
.rail__dot{justify-self:center;width:7px;height:7px;border-radius:50%;background:var(--map-navy);border:1px solid #35415e;transition:background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.rail__text{display:flex;flex-direction:column;gap:1px}
.rail__num{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--data-cyan)}
.rail__label{font-size:13px;color:var(--body-blue);transition:color .18s var(--ease)}
.rail__link:hover .rail__label{color:var(--line-white)}
.rail__link:hover .rail__dot{border-color:var(--star-gold)}
.rail__link[aria-current="page"] .rail__dot{background:var(--star-gold);border-color:var(--star-gold);box-shadow:0 0 0 4px rgba(244,197,66,.14),0 0 14px rgba(244,197,66,.6)}
.rail__link[aria-current="page"] .rail__num{color:var(--star-gold)}
.rail__link[aria-current="page"] .rail__label{color:var(--line-white);font-weight:700;letter-spacing:.04em}
.rail__link[aria-current="page"]::after{content:"";position:absolute;right:0;top:50%;width:16px;height:1px;background:var(--star-gold)}
.rail__foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--divider);display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}
.rail__cta{display:inline-block;padding:7px 12px;border:1px solid rgba(244,197,66,.45);border-radius:999px;font-size:12px;letter-spacing:.06em;color:var(--star-gold);text-decoration:none;transition:background .18s var(--ease),color .18s var(--ease)}
.rail__cta:hover{background:var(--star-gold);color:#0A0F1F}
.rail__meta{font-family:var(--mono);font-size:10px;line-height:1.6;letter-spacing:.04em;color:var(--data-cyan)}

/* --- scrim --- */
.rail-scrim{position:fixed;inset:0;z-index:50;background:rgba(4,7,18,.74);opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility 0s linear .28s}
.rail-scrim[data-open]{opacity:1;visibility:visible;transition:opacity .28s var(--ease),visibility 0s}

/* --- to top --- */
.to-top{position:fixed;right:18px;bottom:18px;z-index:56;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--divider);background:rgba(14,23,48,.92);color:var(--star-gold);font-family:var(--mono);font-size:14px;cursor:pointer;opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility 0s linear .25s,border-color .2s var(--ease)}
.to-top[data-visible]{opacity:1;visibility:visible;transition:opacity .25s var(--ease),visibility 0s}
.to-top:hover{border-color:var(--star-gold)}

/* --- footer --- */
.site-foot{position:relative;margin-top:clamp(72px,10vw,140px);padding:clamp(46px,7vw,84px) 0 34px;border-top:1px solid var(--divider);background:linear-gradient(180deg,rgba(14,23,48,0),var(--map-navy) 42%,#050912)}
.site-foot::before{content:"";position:absolute;top:-1px;left:0;width:min(420px,44%);height:1px;background:linear-gradient(90deg,var(--star-gold),rgba(244,197,66,0))}
.foot__layer{padding:0 0 clamp(24px,3vw,34px);border-bottom:1px solid var(--divider)}
.foot__layer+.foot__layer{padding-top:clamp(24px,3vw,34px)}
.foot__brand{display:flex;align-items:center;gap:12px}
.foot__mark{display:grid;place-items:center;width:38px;height:38px;border:1px solid rgba(244,197,66,.42);border-radius:50%;color:var(--star-gold)}
.foot__name{font-size:clamp(24px,3.4vw,36px);font-weight:900;letter-spacing:-.01em;color:var(--line-white)}
.foot__tagline{margin-top:12px;max-width:46ch;font-size:15px;color:var(--body-blue)}
.foot__title{margin-bottom:16px;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--data-cyan)}
.foot__links{display:flex;flex-wrap:wrap;gap:10px 26px}
.foot__link{display:inline-flex;align-items:baseline;gap:8px;font-size:15px;color:var(--body-blue);text-decoration:none;transition:color .18s var(--ease)}
.foot__link:hover{color:var(--star-gold)}
.foot__link[aria-current="page"]{color:var(--star-gold)}
.foot__link-num{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--data-cyan)}
.foot__contact{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.foot__item{display:flex;flex-direction:column;gap:4px}
.foot__k{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--data-cyan)}
.foot__v{font-size:14px;color:var(--line-white);word-break:break-word}
.foot__note{margin-top:18px;max-width:70ch;font-size:13px;line-height:1.7;color:var(--data-cyan)}
.foot__layer--legal{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 26px;padding-bottom:0;border-bottom:0}
.foot__legal{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--data-cyan)}
.foot__mini{display:flex;flex-wrap:wrap;gap:16px;font-size:12px}
.foot__mini a{color:var(--body-blue);text-decoration:none;border-bottom:1px solid var(--divider);padding-bottom:2px;transition:color .18s var(--ease),border-color .18s var(--ease)}
.foot__mini a:hover{color:var(--star-gold);border-color:var(--star-gold)}
.foot__tick{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:#5C6980}

/* --- responsive --- */
@media (max-width:1023px){
  .grid--asym,.grid--asym-r{grid-template-columns:minmax(0,1fr)}
  .bleed-right{margin-right:0}
}
@media (max-width:900px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .stack--overlap>*:nth-child(2){margin-left:14px}
  .stack--overlap>*:nth-child(3){margin-left:28px}
}
@media (max-width:820px){
  .foot__contact{grid-template-columns:minmax(0,1fr)}
}
@media (min-width:1024px){
  body{padding-top:0;padding-left:var(--rail-w)}
  .topbar{display:none}
  .rail-scrim{display:none}
  .rail{top:0;width:var(--rail-w);max-width:none;padding:22px 12px 16px;transform:none;visibility:visible;box-shadow:none;transition:none}
  .rail__link{padding-right:8px}
  .read-progress{left:var(--rail-w)}
  .to-top{right:28px;bottom:28px}
}
@media (min-width:1280px){
  .rail__label{font-size:13.5px}
}

/* --- reduced motion --- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1!important;transform:none!important}
  .sheet--tilt,.sheet--tilt-r{transform:none}
}