/* ===========================================================
   完美体育 · 球迷看台  —  共享样式表 /assets/site.css
   夜场看台 × 数据面板：墨绿底、荧光青描边、暖橙单点高亮
   =========================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink:#0B1F1A;
  --stand:#12302A;
  --cyan:#2FF3C8;
  --cyan-soft:#7BFFE0;
  --orange:#FF8A3D;
  --orange-soft:#FFC48A;
  --grey:#9FB3AD;
  --paper:#EAF4F0;
  --line:#1E4038;
  --deep:#06110E;

  --shell:1240px;
  --gutter:clamp(20px,4vw,48px);

  --radius-s:10px;
  --radius:16px;
  --radius-l:24px;
  --shadow:0 26px 52px -30px rgba(0,0,0,.9);
  --glow:0 0 18px rgba(47,243,200,.45);

  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-head:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --step-h1:56px;
  --step-h2:40px;
  --step-h3:28px;
  --step-h4:22px;

  --gap-section:clamp(96px,11vw,128px);
  --gap-inner:clamp(24px,3vw,40px);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  background-color:var(--ink);
  background-image:
    radial-gradient(920px 440px at 84% -6%, rgba(47,243,200,.10), transparent 62%),
    radial-gradient(760px 420px at 2% 14%, rgba(255,138,61,.06), transparent 60%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--cyan-soft)}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

.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{
  position:absolute;
  left:16px;
  top:-70px;
  z-index:200;
  padding:12px 20px;
  background:var(--cyan);
  color:var(--deep);
  font-weight:700;
  font-size:15px;
  border-radius:0 0 12px 12px;
  transition:top .2s ease;
}
.skip-link:focus{top:0;color:var(--deep)}

/* ---------- 3. 中文排版基元 ---------- */
h1,.h1{font-family:var(--font-head);font-size:var(--step-h1);font-weight:900;line-height:1.14;letter-spacing:-.02em}
h2,.h2{font-family:var(--font-head);font-size:var(--step-h2);font-weight:900;line-height:1.2;letter-spacing:-.02em}
h3,.h3{font-family:var(--font-head);font-size:var(--step-h3);font-weight:900;line-height:1.28;letter-spacing:-.015em}
h4,.h4{font-family:var(--font-head);font-size:var(--step-h4);font-weight:700;line-height:1.4;letter-spacing:-.01em}

.num,.contact-value.num,.status-count .num{font-family:var(--font-num);font-weight:700;letter-spacing:.04em;font-variant-numeric:tabular-nums}

.prose{max-width:40em;color:var(--paper)}
.prose p+p{margin-top:1.1em}
.prose a{text-decoration:underline;text-underline-offset:3px}
.lead{font-size:19px;line-height:1.8;color:var(--cyan-soft);max-width:38em}
.muted{color:var(--grey)}

/* ---------- 4. 布局基元 ---------- */
.page-shell{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
}
.section{padding-block:var(--gap-section)}
.section--tight{padding-block:clamp(56px,6vw,80px)}
.section-head{
  display:grid;
  gap:14px;
  margin-bottom:var(--gap-inner);
  max-width:64ch;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--cyan);
  display:inline-block;
}
.section-title{color:var(--paper)}
.section-sub{color:var(--grey);max-width:52ch}

.grid{display:grid;gap:var(--gap-inner)}
.grid--sidebar{grid-template-columns:minmax(220px,260px) minmax(0,1fr);gap:clamp(28px,4vw,56px)}
.stack{display:grid;gap:16px}

/* ---------- 5. 色带过渡 ---------- */
.section-band{
  position:relative;
  width:100%;
  height:8px;
  overflow:hidden;
  border-radius:999px;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--stand) 52%,var(--deep) 100%);
}
.section-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,transparent,rgba(234,244,240,.9),transparent);
  transform:translateX(-101%);
}
.section-band.is-visible::after{animation:band-sweep .6s ease-out forwards}
@keyframes band-sweep{to{transform:translateX(101%)}}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.2;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn--accent{background:var(--orange);color:var(--deep);box-shadow:0 14px 30px -18px rgba(255,138,61,.9)}
.btn--accent:hover{background:#FFA05C;color:var(--deep);transform:translateY(-2px)}
.btn--ghost{border-color:var(--line);color:var(--cyan);background:rgba(47,243,200,.04)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan-soft);background:rgba(47,243,200,.1)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn[data-copied="true"]{border-color:var(--cyan);color:var(--cyan-soft)}

/* ---------- 7. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:linear-gradient(180deg,rgba(6,17,14,.97),rgba(11,31,26,.94));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.header-bar{position:relative}
.header-inner{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  min-height:76px;
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,34px);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--paper);
  flex:none;
}
.brand:hover{color:var(--paper)}
.brand-mark{
  width:13px;
  height:13px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(47,243,200,.14),var(--glow);
  flex:none;
}
.brand-text{display:grid;gap:1px}
.brand-name{
  font-family:var(--font-head);
  font-size:17px;
  font-weight:900;
  letter-spacing:-.01em;
  line-height:1.25;
}
.brand-tagline{
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--grey);
  line-height:1.4;
}
.primary-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{list-style:none}
.nav-link{
  position:relative;
  display:inline-block;
  padding:26px 13px;
  font-size:15px;
  font-weight:500;
  color:var(--grey);
  letter-spacing:.02em;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:18px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--cyan-soft)}
.nav-link[aria-current="page"]{color:var(--paper);font-weight:700}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.primary-nav+.header-actions{margin-left:0}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:10px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--paper);
  font-size:14px;
  font-weight:700;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bars{
  position:relative;
  width:18px;
  height:2px;
  background:currentColor;
  border-radius:2px;
  display:inline-block;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:currentColor;
  border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle-bars::before{top:-6px}
.nav-toggle-bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-6px) rotate(-45deg)}
.nav-toggle-label{line-height:1}

/* 状态条 */
.status-strip{
  border-top:1px solid var(--line);
  background:rgba(6,17,14,.7);
}
.status-inner{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  min-height:40px;
  display:flex;
  align-items:center;
  gap:18px;
  font-size:13px;
  letter-spacing:.05em;
  color:var(--grey);
  overflow-x:auto;
  scrollbar-width:none;
}
.status-inner::-webkit-scrollbar{display:none}
.status-label{
  flex:none;
  color:var(--grey);
  letter-spacing:.2em;
  font-family:var(--font-num);
  font-size:11px;
  text-transform:uppercase;
}
.status-list{display:flex;align-items:center;gap:8px}
.status-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 13px;
  border:1px solid var(--line);
  border-radius:999px;
  white-space:nowrap;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.status-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--line);
  flex:none;
}
.status-item.is-active{
  color:var(--cyan);
  border-color:rgba(47,243,200,.45);
  background:rgba(47,243,200,.08);
}
.status-item.is-active .status-dot{background:var(--cyan);box-shadow:0 0 10px rgba(47,243,200,.85)}
.status-count{margin-left:auto;white-space:nowrap;color:var(--paper);flex:none}
.status-count .num{color:var(--orange-soft);font-size:14px}

/* 滚动进度 */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transform:scaleX(0);
  transform-origin:left center;
  pointer-events:none;
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{padding-block:22px 0}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13.5px;
  color:var(--grey);
}
.breadcrumb-list li{display:inline-flex;align-items:center;gap:9px}
.breadcrumb-list li+li::before{content:"/";color:var(--line)}
.breadcrumb-list a{color:var(--grey)}
.breadcrumb-list a:hover{color:var(--cyan)}
.breadcrumb-list [aria-current="page"]{color:var(--paper)}

/* ---------- 9. 卡片 / 筛选片 ---------- */
.card{
  position:relative;
  background:linear-gradient(180deg,var(--stand),rgba(11,31,26,.92));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 26px;
  display:grid;
  gap:12px;
  transform:translateY(var(--card-offset,0));
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background-color .24s ease;
}
.card:hover{
  transform:translateY(calc(var(--card-offset,0px) - 4px));
  border-color:var(--cyan);
  box-shadow:var(--shadow);
}
.card__index{
  font-family:var(--font-num);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--cyan);
}
.card__title{font-size:20px;font-weight:900;letter-spacing:-.01em;line-height:1.35}
.card__meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  font-family:var(--font-num);
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--grey);
}
.card__meta b,.card__meta strong{color:var(--orange-soft)}
.card__body{font-size:15.5px;color:var(--grey);line-height:1.8}

.chip-row{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 15px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.03em;
  color:var(--grey);
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.chip:hover{border-color:var(--cyan-soft);color:var(--cyan-soft)}
.chip[aria-pressed="true"]{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--deep);
}

/* ---------- 10. 折叠问答 ---------- */
.accordion{display:grid;gap:0;border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__trigger{
  width:100%;
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:22px 4px;
  text-align:left;
  font-family:var(--font-head);
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--paper);
  transition:color .18s ease;
}
.accordion__trigger:hover{color:var(--cyan-soft)}
.accordion__index{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--cyan);
  padding-top:5px;
  flex:none;
  transition:color .18s ease;
}
.accordion__item.is-open .accordion__index{color:var(--orange)}
.accordion__label{flex:1 1 auto}
.accordion__mark{
  flex:none;
  width:12px;
  height:12px;
  margin-top:8px;
  border-right:2px solid var(--grey);
  border-bottom:2px solid var(--grey);
  transform:rotate(45deg);
  transition:transform .22s ease,border-color .22s ease;
}
.accordion__item.is-open .accordion__mark{transform:rotate(225deg);border-color:var(--orange)}
.accordion__panel{
  padding:0 4px 26px 4px;
  color:var(--grey);
  font-size:15.5px;
  line-height:1.85;
  max-width:40em;
}
.accordion__panel[hidden]{display:none}

/* ---------- 11. 图片容器基础（页面阶段放图） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(160deg,var(--stand),var(--deep));
  aspect-ratio:16 / 9;
  width:100%;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) brightness(.9);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,17,14,0) 45%,rgba(6,17,14,.72) 100%);
  pointer-events:none;
}
.media-caption{
  margin-top:12px;
  font-size:13.5px;
  color:var(--grey);
  letter-spacing:.02em;
}

/* ---------- 12. 显现动效 ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translate3d(0,16px,0);
  transition:opacity .5s ease,transform .5s ease;
  transition-delay:var(--reveal-delay,0ms);
}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 13. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(80px,9vw,128px);
  background:var(--deep);
  border-top:1px solid var(--line);
}
.footer-band{
  height:8px;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--stand) 48%,var(--orange) 100%);
}
.footer-inner{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  padding-block:clamp(48px,6vw,76px) clamp(32px,4vw,48px);
  display:grid;
  grid-template-columns:1.45fr 2fr 1.25fr;
  gap:clamp(32px,4vw,56px);
}
.footer-brand{display:grid;gap:12px;align-content:start}
.footer-brand-name{
  font-family:var(--font-head);
  font-size:19px;
  font-weight:900;
  letter-spacing:-.01em;
}
.footer-brand-line{font-size:13px;letter-spacing:.16em;color:var(--cyan)}
.footer-closing{font-size:14.5px;color:var(--grey);line-height:1.85;max-width:34ch}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,36px);
}
.footer-col{display:grid;gap:14px;align-content:start}
.footer-col-title{
  font-family:var(--font-num);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-links{display:grid;gap:10px}
.footer-links a{
  color:var(--paper);
  font-size:14.5px;
  opacity:.82;
  transition:color .18s ease,opacity .18s ease;
}
.footer-links a:hover{color:var(--cyan);opacity:1}
.footer-contact{display:grid;gap:12px;align-content:start;justify-items:start}
.footer-row{display:grid;gap:3px;font-size:14px}
.footer-label{
  font-family:var(--font-num);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--grey);
}
.contact-value{color:var(--paper);line-height:1.7;word-break:break-word}
.footer-bottom{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  padding-block:20px 28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--grey);
  letter-spacing:.04em;
}
.footer-legal{font-family:var(--font-num);font-weight:700;letter-spacing:.06em}
.footer-copy{color:var(--grey)}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1024px){
  :root{
    --step-h1:44px;
    --step-h2:32px;
    --step-h3:24px;
    --step-h4:20px;
  }
  body{font-size:18px}
  .grid--sidebar{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .nav-link{padding:26px 10px;font-size:14.5px}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:none;
    background:var(--deep);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:14px var(--gutter) 22px;
  }
  .primary-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{
    display:block;
    padding:14px 16px;
    font-size:17px;
    border-radius:var(--radius-s);
  }
  .nav-link::after{display:none}
  .nav-link:hover{background:rgba(47,243,200,.07)}
  .nav-link[aria-current="page"]{
    color:var(--cyan);
    background:rgba(47,243,200,.12);
    box-shadow:inset 3px 0 0 var(--cyan);
  }
  .header-inner{flex-wrap:wrap;row-gap:12px}
  .header-actions{margin-left:auto}
}

@media (max-width:700px){
  .header-inner{min-height:66px}
  .brand-tagline{display:none}
  .header-cta{display:none}
  .status-label{display:none}
  .status-count{margin-left:16px}
  .footer-inner{grid-template-columns:1fr;gap:34px}
  .footer-nav{grid-template-columns:1fr 1fr}
  .footer-closing{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{padding:12px 20px}
}

@media (max-width:420px){
  :root{
    --step-h1:32px;
    --step-h2:25px;
    --step-h3:21px;
    --step-h4:18px;
  }
  body{font-size:16.5px}
  .card{padding:20px}
  .footer-nav{grid-template-columns:1fr}
}

/* ---------- 15. 动效偏好 ---------- */
@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!important;transform:none!important}
  .section-band::after{display:none}
  .scroll-progress{transition:none}
}