/* ==========================================================================
   178赛事通 · /assets/site.css
   共享外壳：悬浮胶囊导航 · 看台层级页脚 · 夜场数据体系
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0}
li{list-style:none}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* ---------- 2. Tokens ---------- */
:root{
  --ink-900:#0A1524;
  --ink-800:#103129;
  --ink-700:#1B4A3C;
  --ember:#FF7A1A;
  --amber:#FFC64A;
  --magenta:#D9456F;
  --haze:#6E8CA0;
  --white:#F2F6F8;
  --paper:#F2EBDF;
  --white-72:rgba(242,246,248,.72);
  --white-56:rgba(242,246,248,.56);
  --line:rgba(242,246,248,.14);
  --line-strong:rgba(242,246,248,.28);
  --radius-lg:22px;
  --radius-md:14px;
  --radius-pill:999px;
  --font-display:"Barlow Condensed","Oswald","Arial Narrow","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-sans:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --header-h:64px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
@media (min-width:900px){ :root{ --header-h:72px } }

/* ---------- 3. Base & typography ---------- */
body{
  background-color:var(--ink-900);
  background-image:
    radial-gradient(60% 42% at 90% -8%, rgba(255,122,26,.16), transparent 62%),
    radial-gradient(52% 46% at 2% 4%, rgba(27,74,60,.62), transparent 66%);
  background-repeat:no-repeat;
  color:var(--white);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  min-height:100%;
}
html[data-nav-lock]{overflow:hidden}

h1,.h1{font-size:clamp(40px,6vw,68px);font-weight:900;line-height:1.04;letter-spacing:-.02em}
h2,.h2{font-size:clamp(26px,3.2vw,38px);font-weight:900;line-height:1.14;letter-spacing:-.015em}
h3,.h3{font-size:clamp(19px,1.6vw,23px);font-weight:800;line-height:1.3;letter-spacing:-.01em}
h4{font-size:17px;font-weight:800;line-height:1.4}

.eyebrow{
  display:block;
  font-family:var(--font-display);
  font-size:12px;
  font-weight:700;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--haze);
  margin-bottom:10px;
}
.lede{font-size:clamp(16px,1.3vw,18.5px);line-height:1.8;color:var(--white-72);max-width:64ch}
.mono{font-family:var(--font-mono);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.vnote{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-size:12px;
  letter-spacing:.3em;
  color:var(--haze);
  text-transform:uppercase;
}
::selection{background:var(--ember);color:var(--ink-900)}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible{
  outline:2px solid var(--ember);
  outline-offset:3px;
  border-radius:6px;
}

/* ---------- 4. Layout ---------- */
.shell{width:min(1220px,100% - 40px);margin-inline:auto}
@media (max-width:640px){ .shell{width:min(1220px,100% - 28px)} }

.page-top{padding-top:calc(var(--header-h) + 46px)}
.section{padding-block:clamp(48px,7vw,96px);position:relative}
.section--tight{padding-block:clamp(26px,4vw,52px)}
.section--narrow{max-width:920px;margin-inline:auto}
.section__head{max-width:62ch;margin-bottom:clamp(20px,3vw,36px)}

[data-section]{scroll-margin-top:calc(var(--header-h) + 24px)}
@media (min-width:900px){
  [data-section]::before{
    content:"";
    position:absolute;
    left:-20px;
    top:clamp(48px,7vw,96px);
    bottom:clamp(48px,7vw,96px);
    width:2px;
    border-radius:2px;
    background:transparent;
    transition:background .3s var(--ease);
  }
  [data-section][data-active="true"]::before{
    background:linear-gradient(180deg,var(--ember),rgba(255,122,26,0));
  }
}

.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.split{display:grid;gap:clamp(22px,4vw,46px);grid-template-columns:1fr}
@media (min-width:980px){
  .split{grid-template-columns:62fr 38fr}
  .split--flip{grid-template-columns:38fr 62fr}
}

/* ---------- 5. Buttons / tags ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 18px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:800;
  line-height:1;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--ember{
  background:linear-gradient(120deg,#FF7A1A,#FF9A4D);
  color:var(--ink-900);
  box-shadow:0 10px 24px rgba(255,122,26,.26);
}
.btn--ember:hover{box-shadow:0 14px 30px rgba(255,122,26,.38)}
.btn--ghost{
  background:rgba(242,246,248,.04);
  border-color:var(--line-strong);
  color:var(--white);
}
.btn--ghost:hover{background:rgba(242,246,248,.1)}
.btn--sm{padding:8px 14px;font-size:13px}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border:1px solid var(--line);
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--white-72);
}
.tag--ember{background:var(--ember);border-color:transparent;color:var(--ink-900)}
.tag--amber{background:var(--amber);border-color:transparent;color:var(--ink-900)}
.tag--magenta{background:rgba(217,69,111,.92);border-color:transparent;color:var(--white)}

/* ---------- 6. Cards ---------- */
.card{
  position:relative;
  padding:18px 18px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:linear-gradient(158deg,rgba(27,74,60,.5),rgba(10,21,36,.72));
  overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card::after{
  content:"";
  position:absolute;
  right:-30%;
  bottom:-60%;
  width:70%;
  aspect-ratio:1;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.22),transparent 68%);
  pointer-events:none;
  transition:transform .5s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 18px 40px rgba(4,10,18,.45);
}
.card:hover::after{transform:translate(-6%,-6%)}
.card__title{font-size:17px;font-weight:800;line-height:1.4}
.card__meta{margin-top:8px;font-size:13px;color:var(--white-56)}

/* ---------- 7. Media frames（页面阶段放置图片） ---------- */
.media{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  aspect-ratio:16/9;
  background:
    radial-gradient(58% 60% at 76% 18%, rgba(255,122,26,.3), transparent 62%),
    linear-gradient(140deg,var(--ink-800),var(--ink-900) 58%,var(--ink-700));
}
.media img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--4x5{aspect-ratio:4/5}
.media--1x1{aspect-ratio:1/1}
.media__glow{
  position:absolute;
  right:-14%;
  bottom:-34%;
  width:58%;
  aspect-ratio:1;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.34),transparent 68%);
  filter:blur(6px);
  pointer-events:none;
}
.media__cap{
  position:absolute;
  left:14px;
  bottom:12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--white-72);
}

/* ---------- 8. Breadcrumbs / prose ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--haze);
}
.breadcrumbs a{color:var(--haze)}
.breadcrumbs a:hover{color:var(--ember)}
.breadcrumbs [aria-current="page"]{color:var(--white)}
.breadcrumbs__sep{color:rgba(242,246,248,.26)}

.prose{
  max-width:74ch;
  padding:clamp(24px,4vw,46px);
  border-radius:var(--radius-lg);
  background:var(--paper);
  color:#16202B;
  font-size:16.5px;
  line-height:1.78;
}
.prose > * + *{margin-top:1.1em}
.prose h2,.prose h3{color:var(--ink-900)}
.prose h2{margin-top:1.6em}
.prose a{color:#B34D06;text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--ink-900)}
.prose blockquote{
  padding-left:16px;
  border-left:3px solid var(--ember);
  color:#3B4A55;
}
.prose code{
  font-family:var(--font-mono);
  font-size:.92em;
  padding:2px 6px;
  border-radius:5px;
  background:rgba(10,21,36,.08);
}
.prose .mono{color:var(--ink-900)}

/* ---------- 9. Header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:linear-gradient(180deg,rgba(10,21,36,.94) 0%,rgba(10,21,36,.6) 64%,rgba(10,21,36,0) 100%);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(10,21,36,.92);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  box-shadow:0 1px 0 var(--line),0 22px 44px rgba(4,10,18,.45);
}
.site-header__shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  min-height:var(--header-h);
  padding-block:9px;
}

.skip-link{
  position:absolute;
  left:50%;
  top:8px;
  z-index:120;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--ember);
  color:var(--ink-900);
  font-size:13px;
  font-weight:800;
  letter-spacing:.06em;
  transform:translate(-50%,-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  flex:0 0 auto;
  width:34px;
  height:34px;
  border-radius:11px;
  border:1px solid var(--line-strong);
  background:
    linear-gradient(180deg,
      transparent 0 20%, rgba(255,122,26,.95) 20% 25%,
      transparent 25% 42%, rgba(242,246,248,.85) 42% 47%,
      transparent 47% 64%, rgba(110,140,160,.9) 64% 69%,
      transparent 69% 100%),
    radial-gradient(circle at 28% 18%, rgba(255,122,26,.35), transparent 62%),
    linear-gradient(160deg,rgba(27,74,60,.92),rgba(10,21,36,.96));
  box-shadow:inset 0 0 0 1px rgba(10,21,36,.4),0 6px 16px rgba(4,10,18,.4);
}
.brand__stack{display:flex;flex-direction:column;line-height:1.06}
.brand__name{font-size:17px;font-weight:900;letter-spacing:.02em;color:var(--white)}
.brand__en{
  font-family:var(--font-display);
  font-size:10px;
  font-weight:700;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--haze);
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 15px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  background:rgba(27,74,60,.62);
  color:var(--white);
  font-size:13px;
  font-weight:800;
  line-height:1;
  letter-spacing:.16em;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(27,74,60,.9)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle__bars i:nth-child(2){width:11px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 导航：移动端为全屏目录面板 */
.nav{
  position:fixed;
  inset:0;
  z-index:70;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:calc(var(--header-h) + 26px) 22px 44px;
  overflow-y:auto;
  background:linear-gradient(162deg,rgba(10,21,36,.985) 0%,rgba(16,49,41,.97) 58%,rgba(10,21,36,.99) 100%);
  border-bottom:1px solid var(--line);
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.nav[data-open="true"]{opacity:1;visibility:visible;transform:none}
.nav__caption{
  font-family:var(--font-display);
  font-size:11px;
  font-weight:700;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--haze);
}
.nav__list{display:flex;flex-direction:column;gap:0}
.nav__item{border-bottom:1px solid var(--line)}
.nav__link{
  display:block;
  padding:15px 4px;
  font-size:clamp(22px,6vw,30px);
  font-weight:900;
  letter-spacing:-.01em;
  color:var(--white);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.nav__link:hover{color:var(--ember);padding-left:10px}
.nav__link[aria-current="page"]{color:var(--ember)}

/* 导航：桌面端为悬浮胶囊 */
@media (min-width:900px){
  .nav,.nav[data-open="true"]{
    position:static;
    inset:auto;
    display:flex;
    flex-direction:row;
    align-items:center;
    gap:2px;
    margin-inline:auto;
    padding:6px;
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    background:rgba(27,74,60,.55);
    box-shadow:0 12px 30px rgba(4,10,18,.34);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    opacity:1;
    visibility:visible;
    transform:none;
    overflow:visible;
  }
  .nav__caption{display:none}
  .nav__list{flex-direction:row;gap:2px}
  .nav__item{border-bottom:0}
  .nav__link{
    padding:9px 15px;
    border-radius:var(--radius-pill);
    font-size:14px;
    font-weight:700;
    letter-spacing:.01em;
    white-space:nowrap;
  }
  .nav__link:hover{padding-left:15px;color:var(--white);background:rgba(242,246,248,.08)}
  .nav__link[aria-current="page"]{
    color:var(--white);
    background:rgba(255,122,26,.18);
    box-shadow:inset 0 0 0 1px rgba(255,122,26,.5);
  }
  .nav-toggle{display:none}
  .site-header[data-scrolled="true"] .nav-toggle{display:inline-flex}
  .site-header[data-scrolled="true"] .nav{display:none}
  .site-header[data-scrolled="true"] .nav[data-open="true"]{
    display:flex;
    position:absolute;
    top:calc(100% + 10px);
    left:50%;
    right:auto;
    transform:translateX(-50%);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    width:min(560px,calc(100vw - 48px));
    padding:16px 18px 20px;
    border-radius:var(--radius-lg);
    background:linear-gradient(168deg,rgba(10,21,36,.985),rgba(16,49,41,.98));
    box-shadow:0 26px 56px rgba(4,10,18,.55);
    opacity:1;
    visibility:visible;
  }
  .site-header[data-scrolled="true"] .nav[data-open="true"] .nav__caption{display:block;margin-bottom:8px}
  .site-header[data-scrolled="true"] .nav[data-open="true"] .nav__list{flex-direction:column}
  .site-header[data-scrolled="true"] .nav[data-open="true"] .nav__item{border-bottom:1px solid var(--line)}
  .site-header[data-scrolled="true"] .nav[data-open="true"] .nav__link{
    padding:13px 6px;
    border-radius:10px;
    font-size:18px;
    font-weight:800;
  }
  .site-header[data-scrolled="true"] .nav[data-open="true"] .nav__link:hover{padding-left:12px}
}

.site-header__cta{padding:10px 16px;font-size:13.5px}
@media (max-width:520px){
  .site-header__cta{padding:9px 12px;font-size:12.5px}
  .brand__en{display:none}
  .brand__name{font-size:15.5px}
  .nav-toggle__text{display:none}
}

.read-progress{
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:rgba(242,246,248,.08);
}
.read-progress__bar{
  display:block;
  height:100%;
  width:100%;
  transform-origin:0 50%;
  transform:scaleX(0);
  background:linear-gradient(90deg,var(--ember),var(--amber));
  transition:transform .18s linear;
}

/* ---------- 10. Footer ---------- */
.site-footer{
  margin-top:clamp(40px,6vw,80px);
  padding-block:clamp(40px,5vw,62px) 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink-900) 0%,var(--ink-800) 52%,#08111C 100%);
  color:var(--white-72);
  font-size:14.5px;
}
.footer-tier{padding-block:clamp(20px,3vw,30px);border-bottom:1px solid var(--line)}
.footer-tier:last-child{border-bottom:0;padding-bottom:0}
.footer-tier--index{display:grid;gap:28px;grid-template-columns:1fr}
@media (min-width:820px){
  .footer-tier--index{grid-template-columns:1.4fr 1fr}
}
.footer-tier--legal{display:flex;flex-wrap:wrap;gap:20px 40px;align-items:center}
.footer-tier--contact{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:900px){
  .footer-tier--contact{grid-template-columns:1.5fr 1fr;align-items:end}
}

.footer-brand{display:grid;gap:8px;align-content:start}
.footer-brand__mark{
  width:30px;height:30px;
  border-radius:9px;
  border:1px solid var(--line-strong);
  background:
    linear-gradient(180deg,
      transparent 0 22%, rgba(255,122,26,.95) 22% 27%,
      transparent 27% 44%, rgba(242,246,248,.8) 44% 49%,
      transparent 49% 66%, rgba(110,140,160,.85) 66% 71%,
      transparent 71% 100%),
    linear-gradient(160deg,rgba(27,74,60,.9),rgba(10,21,36,.95));
}
.footer-brand__name{font-size:18px;font-weight:900;color:var(--white);letter-spacing:.02em}
.footer-brand__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--haze)}

.footer-nav{display:grid;gap:12px;align-content:start}
.footer-nav__title{
  font-family:var(--font-display);
  font-size:11px;
  font-weight:700;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--haze);
}
.footer-nav__list{display:flex;flex-direction:column;gap:9px}
.footer-nav__list--inline{flex-direction:row;flex-wrap:wrap;gap:10px 26px}
.footer-nav__link{
  color:var(--white-72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-nav__link:hover{color:var(--ember);transform:translateX(3px)}

.contact-list{display:grid;gap:10px}
.contact-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(242,246,248,.12);
}
.contact-line:last-child{border-bottom:0;padding-bottom:0}
.contact-line__label{
  flex:0 0 auto;
  min-width:72px;
  font-family:var(--font-display);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--haze);
}
.contact-line__value{
  font-family:var(--font-mono);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--white);
}
.copy-btn{
  padding:5px 11px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--white-72);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.copy-btn:hover{color:var(--white);border-color:var(--ember)}
.copy-btn[data-state="ok"]{background:rgba(255,122,26,.2);border-color:var(--ember);color:var(--white)}
.copy-btn[data-state="fail"]{border-color:var(--haze);color:var(--haze)}

.footer-tail{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.footer-legal{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--white-56);
}
.to-top{
  padding:9px 16px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  font-size:12.5px;
  font-weight:800;
  letter-spacing:.1em;
  color:var(--white-72);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{color:var(--white);border-color:var(--ember);transform:translateY(-2px)}

/* ---------- 11. Motion utilities ---------- */
[data-js="on"] .reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
[data-js="on"] .reveal[data-reveal="on"]{opacity:1;transform:none}
[data-js="on"] [data-stagger] > *{transition-delay:var(--step-delay,0ms)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-js="on"] .reveal{opacity:1;transform:none}
  .card:hover{transform:none}
  .btn:hover{transform:none}
  .read-progress__bar{transition:none}
}