/* ==========================================================================
   买球 · 中国站 — 共享样式 /assets/site.css
   夜场灯光体系：暗底、强光点、斜切色带、玻璃层与实色层并置
   ========================================================================== */

:root{
  --mq-night:#081A15;
  --mq-moss:#0F342A;
  --mq-stone:#1E4A3C;
  --mq-glow:#00E8C6;
  --mq-glow-soft:#86F5E3;
  --mq-orange:#FF7A2F;
  --mq-clay:#E9A15C;
  --mq-cream:#F4F1E6;
  --mq-mist:#8C9490;
  --mq-ink:#04070A;

  --mq-shear:-6deg;
  --mq-radius:18px;
  --mq-container:1200px;
  --mq-header-h:76px;

  --mq-font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mq-font-mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --mq-shadow-card:0 24px 48px -34px rgba(4,7,10,.95);
  --mq-shadow-lift:0 30px 56px -32px rgba(0,232,198,.35);
}

*,*::before,*::after{ box-sizing:border-box; }

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:96px;
}

body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(1200px 620px at 78% -8%, rgba(0,232,198,.16), transparent 62%),
    radial-gradient(900px 520px at 4% 14%, rgba(255,122,47,.10), transparent 60%),
    var(--mq-night);
  background-attachment:fixed,fixed,fixed;
  color:var(--mq-cream);
  font-family:var(--mq-font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}

img,svg,video{ max-width:100%; }
main,#main-content{ display:block; position:relative; }

h1,h2,h3,h4{
  font-weight:900;
  line-height:1.12;
  letter-spacing:-.04em;
  margin:0 0 .6em;
}

p{ margin:0 0 1.1em; }

a{ color:var(--mq-glow); text-decoration:none; }
a:hover{ color:var(--mq-glow-soft); }

ul,ol{ margin:0; padding:0; }

::selection{ background:var(--mq-glow); color:var(--mq-night); }

:focus-visible{
  outline:2px solid var(--mq-glow);
  outline-offset:3px;
  border-radius:8px;
}

.mono,[class*="__mono"],.num,.section-no,.kicker,.tag,.breadcrumbs ol{
  font-family:var(--mq-font-mono);
  font-variant-numeric:tabular-nums;
}

.skip-link{
  position:fixed;
  top:-140px;
  left:16px;
  z-index:400;
  padding:12px 20px;
  border-radius:0 0 14px 14px;
  background:var(--mq-glow);
  color:var(--mq-night);
  font-weight:900;
  font-size:15px;
  letter-spacing:-.01em;
  transition:top .2s ease;
}
.skip-link:focus{ top:0; color:var(--mq-night); }

/* ---------- 容器与节奏 ---------- */

.container{
  width:100%;
  max-width:var(--mq-container);
  margin-inline:auto;
  padding-inline:6%;
}

.section{ padding-block:clamp(56px,8vw,96px); }

.divider{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,rgba(30,74,60,.9),rgba(0,232,198,.28),rgba(30,74,60,.9));
}

.shear-band{
  position:absolute;
  left:-10%;
  right:-10%;
  height:110px;
  transform:rotate(var(--mq-shear));
  background:linear-gradient(90deg,rgba(0,232,198,.16),rgba(255,122,47,.13) 70%,transparent);
  filter:blur(1.5px);
  pointer-events:none;
  z-index:0;
}

/* ---------- 字号体系 12 / 14 / 16 / 20 / 28 / 44 / 72 / 112 ---------- */

.display-xl{ font-size:clamp(44px,9vw,112px); line-height:.98; }
.display-lg{ font-size:clamp(32px,5.2vw,72px); line-height:1.02; }
.display-md{ font-size:clamp(24px,3.2vw,44px); }
.display-sm{ font-size:clamp(20px,2.2vw,28px); }

.kicker{
  display:block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--mq-clay);
  margin:0 0 14px;
}

.section-no{
  display:block;
  font-size:clamp(40px,7vw,96px);
  font-weight:700;
  line-height:.9;
  letter-spacing:-.05em;
  color:rgba(140,148,144,.34);
  transition:color .35s ease,text-shadow .35s ease;
}

.section-head{ margin-bottom:clamp(28px,4vw,52px); }

.prose{ max-width:38em; }
.prose p{ color:rgba(244,241,230,.86); }
.prose h2{ font-size:clamp(22px,2.6vw,32px); margin-top:1.5em; }
.prose h3{ font-size:20px; margin-top:1.4em; color:var(--mq-glow-soft); }

/* ---------- 网格 ---------- */

.cols{ display:grid; gap:clamp(16px,2.4vw,28px); }
.cols--2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.cols--3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.cols--4{ grid-template-columns:repeat(4,minmax(0,1fr)); }

@media (max-width:900px){
  .cols--3,.cols--4{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:620px){
  .cols--2,.cols--3,.cols--4{ grid-template-columns:minmax(0,1fr); }
}

/* ---------- 按钮 ---------- */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 18px;
  border-radius:999px;
  border:1px solid var(--mq-stone);
  background:transparent;
  color:var(--mq-cream);
  font-family:var(--mq-font-body);
  font-size:14px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease,box-shadow .22s ease;
}
.btn:hover{ transform:translateY(-2px); }

.btn--primary{
  background:var(--mq-orange);
  border-color:var(--mq-orange);
  color:#1A0A02;
  box-shadow:0 14px 28px -16px rgba(255,122,47,.95);
}
.btn--primary:hover{ background:#ff8c4d; border-color:#ff8c4d; color:#1A0A02; }

.btn--quiet{
  background:rgba(0,232,198,.07);
  border-color:rgba(0,232,198,.42);
  color:var(--mq-glow);
}
.btn--quiet:hover{ background:rgba(0,232,198,.15); border-color:var(--mq-glow); color:var(--mq-glow-soft); }

.btn--ghost{
  background:rgba(15,52,42,.7);
  border-color:var(--mq-stone);
  color:var(--mq-cream);
}
.btn--ghost:hover{ border-color:var(--mq-glow); color:var(--mq-glow-soft); }

/* ---------- 卡片 / 玻璃层 / 标签 ---------- */

.card{
  position:relative;
  padding:clamp(20px,2.6vw,30px);
  border-radius:var(--mq-radius);
  border:1px solid rgba(30,74,60,.95);
  background:var(--mq-moss);
  box-shadow:var(--mq-shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,232,198,.55);
  box-shadow:var(--mq-shadow-lift);
}

.card--focus{
  border-color:var(--mq-glow);
  box-shadow:0 0 0 1px rgba(0,232,198,.5),0 34px 64px -32px rgba(0,232,198,.45);
}

.glass{
  background:rgba(15,52,42,.55);
  border:1px solid rgba(134,245,227,.22);
  border-radius:var(--mq-radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--mq-clay);
  background:rgba(233,161,92,.13);
  border:1px solid rgba(233,161,92,.4);
}
.tag--glow{
  color:var(--mq-glow);
  background:rgba(0,232,198,.11);
  border-color:rgba(0,232,198,.42);
}

/* ---------- 面包屑 ---------- */

.breadcrumbs{ font-size:13px; color:var(--mq-mist); margin-bottom:20px; }
.breadcrumbs ol{ display:flex; flex-wrap:wrap; gap:8px; list-style:none; }
.breadcrumbs li{ display:flex; align-items:center; gap:8px; }
.breadcrumbs li::after{ content:"/"; color:rgba(140,148,144,.5); }
.breadcrumbs li:last-child::after{ content:""; }
.breadcrumbs a{ color:var(--mq-glow-soft); }
.breadcrumbs a:hover{ text-decoration:underline; }
.breadcrumbs [aria-current="page"]{ color:var(--mq-cream); }

/* ---------- 图片容器基础规则（页面阶段填充 <img>） ---------- */

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16/10;
  border-radius:var(--mq-radius);
  border:1px solid rgba(0,232,198,.16);
  background:linear-gradient(140deg,rgba(30,74,60,.95),rgba(4,7,10,.95));
  isolation:isolate;
}
.media-frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,transparent 45%,rgba(4,7,10,.72));
}
.media-frame--wide{ aspect-ratio:21/9; }
.media-frame--tall{ aspect-ratio:4/5; }

/* ---------- 站点头部 ---------- */

.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:300;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .35s ease,box-shadow .35s ease,border-color .35s ease;
}

.site-header[data-solid]{
  background:rgba(8,26,21,.93);
  border-bottom-color:rgba(30,74,60,.9);
  box-shadow:0 20px 44px -34px rgba(4,7,10,1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.site-header__inner{
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,32px);
  min-height:var(--mq-header-h);
}

.scroll-progress{
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:3px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--mq-glow),var(--mq-glow-soft) 55%,var(--mq-orange));
  opacity:0;
  transition:opacity .3s ease;
}
.site-header[data-solid] .scroll-progress{ opacity:1; }

.site-header__brand{
  display:flex;
  flex-direction:column;
  gap:3px;
  flex:0 0 auto;
  padding-block:14px;
  color:var(--mq-cream);
}
.site-header__brand:hover{ color:var(--mq-cream); }

.brand-mark{
  display:inline-flex;
  align-items:center;
  font-size:19px;
  font-weight:900;
  letter-spacing:-.04em;
  line-height:1.1;
  white-space:nowrap;
}
.brand-mark::after{
  content:"";
  display:inline-block;
  width:8px;
  height:8px;
  margin-left:8px;
  background:var(--mq-glow);
  clip-path:polygon(50% 0,100% 100%,0 100%);
}

.brand-tagline{
  font-size:11px;
  letter-spacing:.18em;
  color:var(--mq-mist);
  white-space:nowrap;
}

.site-nav{ margin-inline:auto; }

.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,.9vw,12px);
  list-style:none;
  flex-wrap:nowrap;
}

.site-nav__link{
  display:block;
  padding:9px 11px;
  border-radius:11px;
  border:1px solid transparent;
  color:rgba(244,241,230,.74);
  font-size:14px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.site-nav__link:hover{
  color:var(--mq-glow);
  background:rgba(0,232,198,.09);
}
.site-nav__link[aria-current="page"]{
  color:var(--mq-night);
  background:var(--mq-glow);
  border-color:var(--mq-glow);
}
.site-nav__link[aria-current="page"]:hover{
  color:var(--mq-night);
  background:var(--mq-glow-soft);
  border-color:var(--mq-glow-soft);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  order:2;
  margin-left:auto;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid var(--mq-stone);
  background:rgba(15,52,42,.72);
  color:var(--mq-cream);
  font-family:var(--mq-font-body);
  font-size:14px;
  font-weight:800;
  cursor:pointer;
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:18px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--mq-glow);
  transition:transform .25s ease,opacity .2s ease;
}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars span:nth-child(2){ opacity:0; }
.site-header[data-open] .nav-toggle__bars span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ---------- 站点页脚 ---------- */

.site-footer{
  position:relative;
  margin-top:clamp(72px,11vw,150px);
  border-top:1px solid rgba(0,232,198,.22);
  background:linear-gradient(180deg,rgba(4,7,10,.12),rgba(4,7,10,.72)),var(--mq-moss);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--mq-glow),rgba(134,245,227,.35) 48%,var(--mq-orange));
  opacity:.6;
}

.footer-top{
  display:grid;
  grid-template-columns:minmax(220px,1fr) minmax(0,2.1fr);
  gap:clamp(28px,5vw,72px);
  padding-block:clamp(48px,7vw,84px) clamp(30px,4vw,48px);
}

.footer-brand__mark{
  margin:0 0 6px;
  font-size:20px;
  font-weight:900;
  letter-spacing:-.04em;
  color:var(--mq-cream);
}
.footer-brand__tag{
  margin:0 0 20px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--mq-mist);
}
.footer-return{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius:999px;
  border:1px solid rgba(0,232,198,.4);
  background:rgba(0,232,198,.07);
  color:var(--mq-glow);
  font-size:13px;
  font-weight:800;
  transition:background-color .22s ease,transform .22s ease,border-color .22s ease;
}
.footer-return::before{ content:"↩"; font-size:14px; }
.footer-return:hover{
  background:rgba(0,232,198,.15);
  border-color:var(--mq-glow);
  transform:translateY(-2px);
  color:var(--mq-glow-soft);
}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(20px,3vw,36px);
}

.footer-col__title{
  display:flex;
  align-items:center;
  gap:9px;
  margin:0 0 16px;
  font-size:12px;
  font-weight:900;
  letter-spacing:.16em;
  color:var(--mq-clay);
}
.footer-col__title::before{
  content:"";
  width:16px;
  height:2px;
  background:var(--mq-clay);
  flex:0 0 auto;
}

.footer-links{ list-style:none; }
.footer-links li + li{ margin-top:10px; }
.footer-links a{
  display:inline-block;
  color:rgba(244,241,230,.8);
  font-size:15px;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{
  color:var(--mq-glow);
  transform:translateX(3px);
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  padding-block:20px 34px;
  border-top:1px solid rgba(30,74,60,.85);
  font-size:13px;
  color:var(--mq-mist);
}
.footer-contact,
.footer-address,
.footer-copy{ margin:0; }
.footer-contact{ color:rgba(244,241,230,.78); }
.footer-copy{ font-family:var(--mq-font-mono); margin-left:auto; letter-spacing:-.01em; }

/* ---------- 状态与动效 ---------- */

html.mq-js [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .4s ease,transform .4s ease;
}
html.mq-js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

[data-section].is-current .section-no{
  color:var(--mq-glow);
  text-shadow:0 0 34px rgba(0,232,198,.45);
}

/* ---------- 响应式 ---------- */

@media (max-width:1080px){
  .brand-tagline{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .site-header__inner{ flex-wrap:wrap; }
  .site-header__brand{ order:1; }

  .site-nav,
  .header-actions{
    display:none;
    width:100%;
    order:3;
  }
  .header-actions{ order:4; }

  .site-header[data-open]{
    background:rgba(8,26,21,.98);
    border-bottom-color:rgba(30,74,60,.95);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:0 26px 60px -34px rgba(4,7,10,1);
  }
  .site-header[data-open] .site-nav,
  .site-header[data-open] .header-actions{ display:flex; }

  .site-header[data-open] .site-header__inner{
    padding-bottom:20px;
    row-gap:0;
  }

  .site-nav{ flex-direction:column; margin-inline:0; }
  .site-nav__list{ flex-direction:column; align-items:stretch; gap:0; }
  .site-nav__link{
    padding:15px 14px;
    border-radius:12px;
    border:0;
    border-bottom:1px solid rgba(30,74,60,.6);
    font-size:16.5px;
  }
  .site-nav__list li:first-child .site-nav__link{ border-top:1px solid rgba(30,74,60,.6); }
  .site-nav__link[aria-current="page"]{
    background:rgba(0,232,198,.12);
    border-bottom-color:rgba(0,232,198,.4);
    color:var(--mq-glow);
    box-shadow:inset 3px 0 0 var(--mq-glow);
  }

  .header-actions{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-top:16px;
  }
  .header-actions .btn{
    width:100%;
    padding:14px 18px;
    font-size:15px;
  }
}

@media (max-width:1024px){
  .footer-top{ grid-template-columns:minmax(0,1fr); }
  .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width:620px){
  body{ font-size:16px; line-height:1.72; }
  .container{ padding-inline:5.5%; }
  .footer-grid{ grid-template-columns:minmax(0,1fr); gap:26px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .footer-copy{ margin-left:0; }
  .footer-contact{ line-height:1.6; }
  .brand-mark{ font-size:17px; }
}

/* ---------- 降低动效 ---------- */

@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;
  }
  html.mq-js [data-reveal],
  [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }
  .btn:hover,
  .card:hover,
  .footer-return:hover,
  .footer-links a:hover{ transform:none; }
}