/* ============================================================
   178体育安装 · shared site kit (/assets/site.css)
   夜场赛事指挥台：框架式导航 + 粗边框硬阴影 + 记分牌排版
   ============================================================ */

:root{
  --ink:#0A1F1B;
  --ink-2:#0F2138;
  --ink-3:#1E3B35;
  --paper:#F4EBDC;
  --paper-ink:#191410;
  --cyan:#2BF0C8;
  --orange:#FF6A2B;
  --mist:#8FB3A8;
  --beige:#C9B79C;
  --mint:#E4FBF5;
  --on-dark:#E8F2EE;
  --muted-ink:#5B4F3F;
  --muted-ink-2:#6B5C49;
  --hard:6px 6px 0 0 #06120F;
  --hard-sm:3px 3px 0 0 #06120F;
  --rail-w:220px;
  --topbar-h:92px;
  --radius:4px;
  --ease:240ms ease;
  --focus-ring:#FF6A2B;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Heiti SC",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Heiti SC",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html.nav-open{overflow:hidden}
body{
  margin:0;
  padding-top:var(--topbar-h);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--paper-ink);
  background:var(--paper);
  overflow-wrap:break-word;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4{margin:0 0 .55em;font-family:var(--font-display);font-weight:800;letter-spacing:-.01em;line-height:1.18}
h1{font-size:clamp(30px,7vw,56px)}
h2{font-size:clamp(23px,4.4vw,40px)}
h3{font-size:clamp(18px,2.8vw,28px)}
h4{font-size:clamp(16px,2.2vw,22px)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0 0 1em;padding-left:1.25em}
ul:last-child,ol:last-child{margin-bottom:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}

.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:120;
  transform:translateY(-160%);
  background:var(--cyan);color:var(--ink);
  border:2px solid var(--ink);border-radius:var(--radius);
  padding:10px 16px;font-size:13px;font-weight:700;letter-spacing:.04em;
  text-decoration:none;box-shadow:var(--hard-sm);
  transition:transform 180ms ease;
}
.skip-link:focus,.skip-link:focus-visible{transform:none}

/* ---------- read progress ---------- */
.read-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:110;
  background:rgba(43,240,200,.14);
  pointer-events:none;
}
.read-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--cyan) 55%,var(--orange) 100%);
}

/* ---------- header shell (mobile first) ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--topbar-h);
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(90deg,rgba(143,179,168,.05) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(0deg,rgba(143,179,168,.04) 0 1px,transparent 1px 72px);
  color:var(--on-dark);
  border-bottom:2px solid var(--ink-3);
  --focus-ring:var(--cyan);
}
.rail{
  display:grid;
  grid-template-columns:1fr auto;
  align-content:center;
  gap:6px 10px;
  height:100%;
  padding:8px 14px;
}
.rail__brand{
  order:1;
  display:grid;grid-template-columns:auto 1fr;align-items:center;gap:9px;
  min-width:0;
}
.rail__mark{
  font-family:var(--font-mono);font-weight:700;font-size:18px;line-height:1;
  letter-spacing:-.03em;
  color:var(--ink);background:var(--cyan);
  border:2px solid #06120F;border-radius:2px;
  padding:6px;box-shadow:var(--hard-sm);
  transition:transform 180ms ease,box-shadow 180ms ease;
}
.rail__brandtext{display:flex;flex-direction:column;gap:1px;min-width:0}
.rail__name{font-size:14px;font-weight:800;letter-spacing:.02em;color:var(--on-dark);line-height:1.2}
.rail__tag{font-family:var(--font-mono);font-size:9px;letter-spacing:.18em;color:var(--mist);line-height:1.2}
.rail__brand:hover .rail__mark,.rail__brand:focus-visible .rail__mark{transform:translate(2px,2px);box-shadow:1px 1px 0 0 #06120F}

.rail__status{
  order:3;grid-column:1 / -1;
  display:grid;grid-template-columns:auto 1fr;align-items:center;gap:8px;
  margin:0;padding:5px 8px;
  background:var(--ink-2);
  border:1px solid var(--ink-3);border-left:2px solid var(--cyan);
  border-radius:2px;
  font-size:10px;line-height:1.4;letter-spacing:.06em;color:var(--mist);
  min-width:0;
}
.rail__status-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(43,240,200,.9);
  animation:statusPulse 2.6s ease-in-out infinite;
}
.rail__status-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@keyframes statusPulse{0%,100%{opacity:1}50%{opacity:.3}}

/* ---------- mobile toggle ---------- */
.nav-toggle{
  order:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;
  background:var(--ink-2);color:var(--on-dark);
  border:2px solid var(--ink-3);border-radius:var(--radius);
  font-size:11px;font-weight:700;letter-spacing:.16em;
  cursor:pointer;
  transition:border-color 180ms ease,color 180ms ease,transform 180ms ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle:active{transform:translate(1px,1px)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:12px}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:2px;background:currentColor;
  transition:transform var(--ease),top var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{top:10px}
.site-header[data-open] .nav-toggle__bars::before{top:5px;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{top:5px;transform:rotate(-45deg)}
.nav-toggle__label{line-height:1}

/* ---------- navigation drawer (mobile) ---------- */
.site-nav{
  position:fixed;left:0;right:0;top:var(--topbar-h);bottom:0;z-index:55;
  padding:18px 16px calc(96px + env(safe-area-inset-bottom));
  background-color:var(--ink);
  background-image:repeating-linear-gradient(0deg,rgba(143,179,168,.05) 0 1px,transparent 1px 72px);
  border-top:2px solid var(--ink-3);
  overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.site-header[data-open] .site-nav{opacity:1;visibility:visible;transform:none}
.site-nav__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.site-nav__item{border-bottom:1px solid var(--ink-3)}
.site-nav__item:first-child{border-top:1px solid var(--ink-3)}
.site-nav__link{
  display:grid;grid-template-columns:30px 1fr;align-items:center;gap:8px;
  padding:15px 8px;
  border-left:2px solid transparent;
  color:var(--on-dark);font-size:16px;font-weight:700;letter-spacing:.02em;
  transition:background var(--ease),color var(--ease),border-color var(--ease),padding-left var(--ease);
}
.site-nav__num{font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--mist)}
.site-nav__link:hover{background:var(--ink-2);border-left-color:var(--ink-3);padding-left:14px}
.site-nav__link[aria-current="page"]{
  background:var(--ink-2);border-left-color:var(--orange);color:var(--cyan);
}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--orange)}

/* ---------- quick entries (fixed bottom bar on mobile) ---------- */
.rail__quick{
  position:fixed;left:0;right:0;bottom:0;z-index:56;
  display:flex;gap:10px;
  margin:0;padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:var(--ink-2);
  border-top:2px solid var(--ink-3);
  transform:translateY(110%);visibility:hidden;
  transition:transform var(--ease),visibility var(--ease);
}
.site-header[data-open] .rail__quick{transform:none;visibility:visible}
.rail__quick-link{
  flex:1;
  display:flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 10px;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--on-dark);
  background:var(--ink);
  border:2px solid var(--ink-3);border-radius:var(--radius);
  transition:border-color 180ms ease,color 180ms ease,transform 180ms ease;
}
.rail__quick-link::after{content:"→";font-family:var(--font-mono);color:var(--cyan)}
.rail__quick-link:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}

/* ---------- desktop rail ---------- */
@media (min-width:900px){
  body{padding-top:0;padding-left:var(--rail-w)}
  .site-header{
    top:0;left:0;right:auto;bottom:0;
    width:var(--rail-w);height:100vh;height:100dvh;
    border-bottom:0;border-right:2px solid var(--ink-3);
  }
  .read-progress{left:var(--rail-w)}
  .rail{
    display:flex;flex-direction:column;gap:18px;
    height:100%;padding:22px 16px 18px;
    overflow-y:auto;align-content:stretch;
  }
  .rail__brand{order:0}
  .rail__mark{font-size:22px;padding:7px 8px}
  .rail__name{font-size:15px}
  .rail__tag{font-size:10px}
  .nav-toggle{display:none}
  .rail__status{
    order:0;grid-column:auto;align-items:start;
    padding:8px 9px;font-size:11px;line-height:1.55;
  }
  .rail__status-dot{margin-top:4px}
  .rail__status-text{white-space:normal;text-overflow:clip}
  .site-nav{
    position:static;inset:auto;z-index:auto;
    padding:0;border:0;background:transparent;background-image:none;
    overflow:visible;opacity:1;visibility:visible;transform:none;
    transition:none;
  }
  .site-nav__list{gap:2px}
  .site-nav__item,.site-nav__item:first-child{border:0}
  .site-nav__link{
    grid-template-columns:26px 1fr;
    padding:9px 8px;font-size:14px;font-weight:600;
  }
  .site-nav__link:hover{padding-left:12px}
  .rail__quick{
    position:static;margin-top:auto;
    flex-direction:column;gap:8px;
    padding:16px 0 0;
    background:transparent;border-top:1px solid var(--ink-3);
    transform:none;visibility:visible;
  }
  .rail__quick-link{
    justify-content:space-between;
    padding:8px 10px;font-size:12px;
    background:var(--ink-2);box-shadow:var(--hard-sm);
  }
  .rail__quick-link:hover{transform:translate(2px,2px);box-shadow:none}
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--paper);color:var(--paper-ink);
  border-top:2px solid var(--ink);
  --focus-ring:var(--orange);
}
.site-footer__inner{
  display:grid;grid-template-columns:1fr;gap:28px;
  width:100%;max-width:1160px;margin:0 auto;
  padding:44px 20px 34px;
}
.footer-brand__link{display:inline-flex;align-items:center;gap:10px}
.footer-brand__mark{
  font-family:var(--font-mono);font-weight:700;font-size:20px;line-height:1;
  letter-spacing:-.03em;color:var(--cyan);background:var(--ink);
  padding:7px 9px;border-radius:2px;box-shadow:var(--hard-sm);
}
.footer-brand__name{font-size:16px;font-weight:800;letter-spacing:.02em}
.footer-brand__line{margin:14px 0 10px;max-width:32em;font-size:14px;line-height:1.75;color:var(--muted-ink)}
.footer-brand__sign{margin:0;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--orange)}
.footer-nav__title,.footer-contact__title{
  margin:0 0 12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--muted-ink-2);font-weight:600;
}
.footer-nav__list,.footer-contact__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.footer-nav__list a{
  display:inline-block;font-size:14px;font-weight:600;
  border-bottom:2px solid transparent;padding-bottom:1px;
  transition:border-color 180ms ease,color 180ms ease;
}
.footer-nav__list a:hover{border-bottom-color:var(--orange);color:var(--orange)}
.footer-contact__item{font-size:14px;line-height:1.6}
.footer-contact__label{
  display:block;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  color:var(--muted-ink-2);
}
.footer-contact__value{font-weight:600;word-break:break-all}
.footer-contact__note{
  margin:14px 0 0;padding-left:10px;
  border-left:2px solid var(--beige);
  font-size:12px;line-height:1.7;color:var(--muted-ink);
}
.site-footer__legal{background:var(--ink);color:var(--mist);border-top:2px solid var(--ink-3)}
.site-footer__legal-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 20px;
  width:100%;max-width:1160px;margin:0 auto;
  padding:16px 20px;
  font-size:12px;letter-spacing:.06em;
}
.site-footer__icp{margin:0;font-family:var(--font-mono);letter-spacing:.08em}
.site-footer__copy{margin:0;font-family:var(--font-mono);letter-spacing:.08em;color:var(--mist)}
@media (min-width:720px){
  .site-footer__inner{grid-template-columns:1fr 1fr;gap:36px 28px}
  .footer-brand{grid-column:1 / -1}
}
@media (min-width:1000px){
  .site-footer__inner{grid-template-columns:1.5fr .9fr .9fr 1.2fr;gap:32px;padding:64px 32px 48px}
  .footer-brand{grid-column:auto}
  .site-footer__legal-inner{padding:18px 32px}
}

/* ---------- layout utilities ---------- */
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
@media (min-width:900px){.wrap{padding:0 32px}}
.section{padding:52px 0}
@media (min-width:900px){.section{padding:88px 0}}
.band-dark,.band-night,.band-paper,.band-mint{padding:0}
.band-dark{
  background-color:var(--ink);color:var(--on-dark);--focus-ring:var(--cyan);
  background-image:
    repeating-linear-gradient(90deg,rgba(143,179,168,.06) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(0deg,rgba(143,179,168,.05) 0 1px,transparent 1px 64px);
}
.band-night{background-color:var(--ink-2);color:var(--on-dark);--focus-ring:var(--cyan)}
.band-paper{background-color:var(--paper);color:var(--paper-ink);--focus-ring:var(--orange)}
.band-mint{background-color:var(--mint);color:var(--paper-ink);--focus-ring:var(--orange)}
.grid{display:grid;gap:20px}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
@media (min-width:900px){
  .grid{gap:28px}
  .grid--7-5{grid-template-columns:7fr 5fr;align-items:start}
  .grid--8-4{grid-template-columns:8fr 4fr;align-items:start}
}
.rule{height:2px;border:0;margin:0;background:currentColor;opacity:.22}

/* ---------- section heads & labels ---------- */
.sec-head{margin:0 0 26px;max-width:62ch}
.sec-num{
  display:block;margin-bottom:8px;
  font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.22em;
  color:var(--orange);
}
.band-dark .sec-num,.band-night .sec-num{color:var(--cyan)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  border:1px solid currentColor;border-radius:2px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.14em;
  color:var(--cyan);line-height:1.4;
}
.tag::before{content:"";width:6px;height:6px;background:currentColor;display:block}
.tag--orange{color:var(--orange)}
.tag--ink{color:var(--paper-ink)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;
  font-family:var(--font-body);font-size:14px;font-weight:700;letter-spacing:.04em;line-height:1.2;
  color:var(--paper-ink);background:var(--paper);
  border:2px solid var(--ink);border-radius:var(--radius);
  box-shadow:var(--hard-sm);cursor:pointer;
  transition:transform 180ms ease,box-shadow 180ms ease,background 180ms ease,color 180ms ease,border-color 180ms ease;
}
.btn:hover{transform:translate(2px,2px);box-shadow:1px 1px 0 0 #06120F}
.btn:active{transform:translate(3px,3px);box-shadow:none}
.btn--accent{background:var(--orange);color:#12100D;border-color:#12100D}
.btn--ghost{background:transparent;color:var(--on-dark);border-color:var(--ink-3);box-shadow:none}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:none;transform:translate(2px,2px)}

/* ---------- panels & KPI ---------- */
.panel{
  background:var(--ink-2);color:var(--on-dark);
  border:2px solid var(--ink-3);border-radius:var(--radius);
  padding:20px;box-shadow:var(--hard);
}
.panel__title{
  margin:0 0 10px;
  font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.16em;
  color:var(--cyan);
}
.panel--paper{background:var(--paper);color:var(--paper-ink);border-color:var(--ink)}
.panel--paper .panel__title{color:var(--orange)}
.kpi{display:flex;flex-direction:column;gap:6px}
.kpi__num{
  font-family:var(--font-mono);font-weight:600;
  font-size:clamp(28px,5vw,40px);line-height:1;letter-spacing:-.02em;
  color:var(--cyan);
}
.kpi__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--mist)}
.kpi--ink .kpi__num{color:var(--orange)}
.kpi--ink .kpi__label{color:var(--muted-ink-2)}

/* ---------- image frames ---------- */
.frame{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 9;
  background:var(--ink-3);
  border:2px solid var(--ink-3);border-radius:var(--radius);
  box-shadow:var(--hard);
}
.frame__img{display:block;width:100%;height:100%;object-fit:cover}
.frame--wide{aspect-ratio:21 / 9}
.frame--tall{aspect-ratio:4 / 5}
.frame--square{aspect-ratio:1 / 1}
.frame--paper{border-color:var(--ink)}
.frame__caption{
  margin:10px 0 0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;line-height:1.6;
  color:var(--mist);
}
.band-paper .frame__caption,.band-mint .frame__caption{color:var(--muted-ink-2)}

/* ---------- prose ---------- */
.prose{max-width:68ch;font-size:17px;line-height:1.8}
.prose > * + *{margin-top:1.2em}
.prose h2{font-size:clamp(22px,3.4vw,30px);margin-top:1.8em}
.prose h3{font-size:clamp(18px,2.4vw,22px);margin-top:1.5em}
.prose ul,.prose ol{padding-left:1.35em}
.prose li + li{margin-top:.4em}
.prose a{
  text-decoration:underline;text-underline-offset:3px;
  text-decoration-thickness:2px;text-decoration-color:var(--orange);
}
.prose blockquote{
  margin:1.6em 0;padding:14px 18px;
  border-left:3px solid var(--orange);background:var(--mint);
  color:var(--paper-ink);border-radius:0 var(--radius) var(--radius) 0;
}
.prose code{
  font-family:var(--font-mono);font-size:.9em;
  background:rgba(201,183,156,.35);padding:1px 5px;border-radius:2px;
}

/* ---------- crumbs ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:currentColor;opacity:.82;
}
.crumbs a{border-bottom:1px solid transparent;transition:border-color 180ms ease}
.crumbs a:hover{border-bottom-color:currentColor}
.crumbs__sep{opacity:.55}
.crumbs [aria-current="page"]{color:var(--orange);opacity:1}
.band-dark .crumbs [aria-current="page"],.band-night .crumbs [aria-current="page"]{color:var(--cyan)}

/* ---------- chapter (in-page) links ---------- */
[data-chapter-link]{
  display:inline-block;
  transition:color 180ms ease,border-color 180ms ease;
}
[data-chapter-link][aria-current="true"]{color:var(--cyan)}
.band-paper [data-chapter-link][aria-current="true"],
.band-mint [data-chapter-link][aria-current="true"]{color:var(--orange)}

/* ---------- reveal ---------- */
.has-js [data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity 320ms ease,transform 320ms ease;
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 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;
  }
  .has-js [data-reveal]{opacity:1;transform:none;transition:none}
  .rail__status-dot{animation:none}
}