/* ==========================================================================
   必博体育官方 — 共享站点样式 /assets/site.css
   夜场记分牌 × 赛后数据控制室 · 堆叠画板 · 框架式导航
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#070D18;
  --panel:#0E1A2B;
  --panel-2:#16263D;
  --paper:#F4EEDF;
  --paper-dim:#DED3BE;
  --cyan:#35E2D0;
  --orange:#FF7A3C;
  --league-blue:#5B7FA6;
  --league-moss:#6E8B62;
  --league-wine:#9A6573;
  --white:#F7FBFF;
  --muted:#93A4B8;
  --ink-soft:#101A26;

  --line:rgba(247,251,255,.12);
  --line-strong:rgba(247,251,255,.24);

  --font-display:"DIN Condensed","Barlow Condensed","Oswald","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1180px;
  --gutter:clamp(16px,4vw,44px);

  --r-xl:32px;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;

  --shadow-panel:0 26px 60px rgba(2,6,12,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ink);
  background-image:
    radial-gradient(circle at 16% -8%,rgba(53,226,208,.10),transparent 46%),
    radial-gradient(circle at 94% 2%,rgba(255,122,60,.09),transparent 44%);
  background-repeat:no-repeat;
  color:var(--text,var(--white));
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-family:var(--font-display);font-weight:700;line-height:1.12;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
dl,dd,dt{margin:0}
figure{margin:0}
hr{border:0}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
#main-content{display:block}

.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 3. 跳转链接 ---------- */
.skip-link{
  position:absolute;left:var(--gutter);top:0;z-index:300;
  transform:translateY(-140%);
  padding:12px 20px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.1em;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  transition:transform .18s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--ink);outline-offset:-4px}

/* ---------- 4. 页头：框架式导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:linear-gradient(180deg,rgba(7,13,24,.99),rgba(7,13,24,.94));
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}

.header-rail{background:var(--panel);border-bottom:1px solid var(--line)}
.rail-inner,
.header-frame{
  width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter);
}
.rail-inner{
  display:flex;align-items:center;gap:14px;
  padding-block:7px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);
}
.rail-status{display:inline-flex;align-items:center;gap:8px;color:var(--cyan)}
.rail-dot{
  width:6px;height:6px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 3px rgba(255,122,60,.18);
}
.rail-meta{margin-left:auto;color:var(--muted);text-align:right}

.header-frame{
  position:relative;
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  padding-block:14px;
}
.header-frame::before,
.header-frame::after{
  content:"";position:absolute;width:9px;height:9px;border:1px solid var(--cyan);opacity:.5;
}
.header-frame::before{left:calc(var(--gutter) - 5px);top:7px;border-right:0;border-bottom:0}
.header-frame::after{right:calc(var(--gutter) - 5px);bottom:7px;border-left:0;border-top:0}

.header-rule{
  height:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(53,226,208,0) 38%,rgba(255,122,60,0) 62%,var(--orange));
  opacity:.75;
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:26px}
.brand-mark-line{display:block;width:4px;border-radius:2px;background:var(--cyan);transition:height .2s var(--ease)}
.brand-mark-line:nth-child(1){height:13px;opacity:.42}
.brand-mark-line:nth-child(2){height:19px;opacity:.72}
.brand-mark-line:nth-child(3){height:26px;background:var(--orange)}
.brand:hover .brand-mark-line:nth-child(1){height:20px}
.brand-text{display:block}
.brand-name{
  display:block;font-family:var(--font-display);font-size:22px;font-weight:700;
  letter-spacing:.06em;line-height:1.1;color:var(--white);
}
.brand-sub{
  display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--muted);
}

/* 导航 */
.site-nav{display:flex;align-items:center;gap:12px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.nav-list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav-list a{
  display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);border:1px solid transparent;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.nav-list a:hover{color:var(--white);border-color:var(--line-strong);background:rgba(247,251,255,.05)}
.nav-list a[aria-current="page"]{
  color:var(--ink);background:var(--cyan);border-color:var(--cyan);font-weight:600;
}
.nav-cta{margin-left:6px}

/* 移动目录按钮 */
.nav-toggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  padding:9px 16px;border-radius:var(--r-pill);border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--white);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.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}

/* ---------- 5. 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-pill);border:1px solid transparent;
  font-family:var(--font-body);font-size:14px;font-weight:600;line-height:1.2;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn--signal{background:var(--orange);color:#1A0B03}
.btn--signal:hover{background:#FF9463;transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-strong);color:var(--white)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--paper{background:var(--paper);color:var(--ink)}
.btn--paper:hover{background:#FFF9EC;transform:translateY(-1px)}

/* ---------- 6. 版心与区块 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(28px,5vw,56px)}
.stack-board{display:grid;gap:clamp(18px,3vw,34px)}

.grid{display:grid;gap:clamp(16px,2.4vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--rail{grid-template-columns:minmax(180px,240px) minmax(0,1fr);gap:clamp(20px,3vw,40px);align-items:start}

/* ---------- 7. 排版原子 ---------- */
.display-1{font-size:clamp(38px,7vw,64px)}
.display-2{font-size:clamp(30px,5vw,48px)}
.display-3{font-size:clamp(24px,3.4vw,32px)}
.eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);
}
.lead{font-size:clamp(16px,1.6vw,18px);color:var(--muted);max-width:62ch}
.muted{color:var(--muted)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.num-xl{
  font-family:var(--font-mono);font-weight:700;font-size:clamp(34px,6vw,72px);
  line-height:.95;letter-spacing:-.02em;color:var(--cyan);font-variant-numeric:tabular-nums;
}

/* ---------- 8. 堆叠画板 ---------- */
.panel{
  background:var(--paper);color:var(--ink-soft);
  border-radius:var(--r-lg);padding:clamp(20px,3.4vw,36px);
  box-shadow:var(--shadow-panel);
}
.panel h2,.panel h3,.panel h4{color:#0A1420}
.panel .eyebrow{color:#0E6E66}
.panel .lead,.panel .muted{color:#4A5A6D}
.panel .num-xl{color:#0E6E66}
.panel .tag{background:rgba(16,26,38,.06);border-color:rgba(16,26,38,.18);color:#33465A}
.panel .chip{border-color:rgba(16,26,38,.22);color:#3E5266}
.panel .chip:hover{color:#0A1420;border-color:#0A1420}
.panel .chip[aria-pressed="true"]{background:#0A1420;border-color:#0A1420;color:var(--paper)}
.panel .panel-head{border-bottom-color:rgba(16,26,38,.16)}

.panel--dark{
  background:var(--panel);color:var(--white);border:1px solid var(--line);
  box-shadow:none;
}
.panel--dark h2,.panel--dark h3,.panel--dark h4{color:var(--white)}
.panel--dark .eyebrow{color:var(--cyan)}
.panel--dark .lead,.panel--dark .muted{color:var(--muted)}
.panel--dark .num-xl{color:var(--cyan)}
.panel--dark .tag{background:rgba(247,251,255,.07);border-color:var(--line);color:var(--paper-dim)}
.panel--dark .chip{border-color:var(--line-strong);color:var(--muted)}
.panel--dark .chip[aria-pressed="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--ink)}

.panel-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid rgba(16,26,38,.16);
}

/* ---------- 9. 标签与筛选胶囊 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  background:rgba(247,251,255,.07);color:var(--paper-dim);border:1px solid var(--line);
}
.tag--blue{background:rgba(91,127,166,.22);border-color:rgba(91,127,166,.5);color:#A9C4E2}
.tag--moss{background:rgba(110,139,98,.22);border-color:rgba(110,139,98,.5);color:#BCD3B0}
.tag--wine{background:rgba(154,101,115,.22);border-color:rgba(154,101,115,.5);color:#DDB4C0}
.tag--cyan{background:rgba(53,226,208,.14);border-color:rgba(53,226,208,.42);color:var(--cyan)}
.tag--orange{background:rgba(255,122,60,.16);border-color:rgba(255,122,60,.45);color:#FFB08A}

.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.chip{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{color:var(--white);border-color:var(--cyan)}
.chip[aria-pressed="true"]{
  background:var(--cyan);border-color:var(--cyan);color:var(--ink);font-weight:700;
}
[data-filter-item][data-hidden]{display:none}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb{margin-block:clamp(16px,2.4vw,22px) 0}
.breadcrumb ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);
}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:rgba(147,164,184,.5)}
.breadcrumb a{color:var(--muted);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--white)}

/* ---------- 11. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--panel-2);
  aspect-ratio:16/9;
}
.media-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__badge{
  position:absolute;left:12px;top:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--r-pill);
  background:rgba(7,13,24,.8);color:var(--cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:16px;color:var(--white);font-size:14px;
  background:linear-gradient(180deg,rgba(7,13,24,0),rgba(7,13,24,.88));
}

/* ---------- 12. 显现动效 ---------- */
html.js [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
html.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 13. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  background:var(--panel);
  border-top:1px solid var(--line);
}
.footer-rule{
  height:3px;
  background:repeating-linear-gradient(90deg,var(--cyan) 0 14px,transparent 14px 32px);
  opacity:.32;
}
.footer-inner{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:clamp(24px,4vw,56px);align-items:start;
  padding-block:clamp(34px,5vw,56px) clamp(22px,3.4vw,34px);
}
.footer-kicker{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:10px;
}
.footer-title{
  font-family:var(--font-display);font-size:clamp(22px,2.6vw,30px);font-weight:700;
  letter-spacing:.03em;color:var(--white);line-height:1.2;
}
.footer-desc{margin-top:12px;font-size:14px;color:var(--muted);max-width:44ch}
.footer-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(20px,3vw,36px)}
.footer-heading{
  font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted);margin-bottom:12px;
}
.footer-list a{
  display:inline-block;padding:6px 0;font-size:14px;color:#C6D2E0;
  transition:color .18s var(--ease);
}
.footer-list a:hover{color:var(--cyan)}

.footer-contact{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:clamp(18px,3vw,34px);align-items:start;
  background:var(--paper);color:var(--ink-soft);
  border-radius:var(--r-lg);padding:clamp(20px,3vw,32px);
  margin-bottom:clamp(24px,4vw,40px);
  box-shadow:var(--shadow-panel);
}
.footer-contact-title{
  font-size:clamp(20px,2.4vw,26px);color:#0A1420;letter-spacing:.04em;
}
.footer-contact-note{margin-top:10px;font-size:14px;line-height:1.75;color:#4A5A6D}
.contact-list{display:grid;gap:0}
.contact-line{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;align-items:baseline;
  padding-block:10px;border-bottom:1px solid rgba(16,26,38,.16);
}
.contact-line:last-child{border-bottom:0}
.contact-line dt{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#68798C;
}
.contact-line dd{
  font-family:var(--font-mono);font-size:14px;color:#101A26;
  overflow-wrap:anywhere;word-break:break-word;
}

.footer-legal{border-top:1px solid var(--line)}
.footer-legal-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  padding-block:16px 26px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);
}
.legal-copy{color:var(--muted)}
.legal-icp{color:var(--paper-dim)}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1080px) and (min-width:901px){
  .nav-list a{padding:8px 10px;font-size:13px}
  .btn--signal.nav-cta{padding:9px 14px;font-size:13px}
}

@media (max-width:900px){
  .site-nav{display:none}
  .nav-toggle{display:inline-flex}

  [data-nav][data-open]{
    display:flex;flex-direction:column;align-items:stretch;gap:14px;
    position:absolute;left:0;right:0;top:100%;
    margin:0;padding:18px var(--gutter) 26px;
    background:var(--panel);
    border-bottom:1px solid var(--line-strong);
    box-shadow:var(--shadow-panel);
  }
  [data-nav][data-open] .nav-list{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  [data-nav][data-open] .nav-list a{
    padding:12px 14px;border-radius:var(--r-sm);font-size:15px;border-color:transparent;
  }
  [data-nav][data-open] .nav-list a[aria-current="page"]{border-radius:var(--r-sm)}
  [data-nav][data-open] .nav-cta{margin-left:0;width:100%;justify-content:center}

  .grid--rail{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-contact{grid-template-columns:1fr}
}

@media (max-width:720px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .brand-sub{display:none}
  .rail-inner{font-size:10px;letter-spacing:.1em;gap:10px}
  .rail-meta{margin-left:0;text-align:left}
  .rail-inner{flex-wrap:wrap}
  .nav-list a{font-size:14px}
  .footer-nav{grid-template-columns:1fr}
  .contact-line{grid-template-columns:56px minmax(0,1fr)}
}

@media (max-width:420px){
  .header-frame::before,.header-frame::after{display:none}
  .footer-legal-inner{flex-direction:column;align-items:flex-start}
}

/* ---------- 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;
  }
  html.js [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover,.brand:hover .brand-mark-line:nth-child(1){transform:none}
}