/* =============================================================
   完美体育赛事 · 共享站点样式 /assets/site.css
   语言：技术蓝图网格 / 夜赛灯光 / 红黄牌语义 / 玻璃与实色并置
   ============================================================= */

/* ---------- 01 · Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:96px;
}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video,canvas{display:block;max-width:100%;height:auto}
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%}

/* ---------- 02 · Tokens ---------- */
:root{
  --deep:#071A2F;
  --night:#123B5D;
  --palm:#0E7A5F;
  --neon:#7BE0B3;
  --red:#E23B2E;
  --yellow:#F2C230;
  --foam:#F7FBF8;
  --sand:#EADFC8;
  --glass:rgba(255,255,255,.08);
  --teal:#9EF0D0;

  --ink:var(--foam);
  --ink-muted:rgba(247,251,248,.68);
  --ink-faint:rgba(247,251,248,.46);
  --line:rgba(158,240,208,.16);
  --line-strong:rgba(158,240,208,.38);

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

  --maxw:1280px;
  --gutter:clamp(20px,4vw,40px);
  --r-sm:4px;
  --r-md:10px;
  --r-lg:18px;
  --ease:cubic-bezier(.22,.7,.3,1);
}

/* ---------- 03 · Base ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.012em;
  color:var(--foam);
  background-color:var(--deep);
  background-image:
    linear-gradient(rgba(158,240,208,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(158,240,208,.05) 1px,transparent 1px),
    radial-gradient(120% 90% at 84% -16%,rgba(14,122,95,.42),transparent 62%),
    radial-gradient(90% 70% at -8% 104%,rgba(18,59,93,.82),transparent 68%);
  background-size:64px 64px,64px 64px,100% 100%,100% 100%;
  background-repeat:repeat,repeat,no-repeat,no-repeat;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
::selection{background:var(--neon);color:var(--deep)}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.12;
  letter-spacing:.005em;
  color:var(--foam);
}

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

/* ---------- 04 · Utilities ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:10px;
  z-index:220;
  display:inline-block;
  padding:10px 18px;
  border-radius:var(--r-sm);
  background:var(--neon);
  color:var(--deep);
  font-weight:700;
  font-size:14px;
  letter-spacing:.04em;
  transform:translateY(-220%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.divider{
  height:1px;
  border:0;
  margin:clamp(28px,4vw,48px) 0;
  background:linear-gradient(90deg,var(--line-strong),rgba(158,240,208,.05) 70%,transparent);
}
.stack{display:flex;flex-direction:column;gap:var(--stack-gap,16px)}

/* ---------- 05 · Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:linear-gradient(180deg,rgba(7,26,47,.94),rgba(7,26,47,.78));
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid var(--line);
  color:var(--foam);
}
.site-header::after{
  content:"";
  position:absolute;
  left:var(--gutter);
  right:var(--gutter);
  bottom:-1px;
  height:1px;
  pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(123,224,179,.55) 14%,rgba(158,240,208,.1) 40%,rgba(158,240,208,.1) 62%,rgba(242,194,48,.4) 88%,transparent);
}
.scroll-progress{
  position:absolute;
  left:0;right:0;top:0;
  height:2px;
  background:rgba(158,240,208,.1);
  z-index:2;
}
.scroll-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--palm),var(--neon) 55%,var(--yellow));
  transition:width .12s linear;
}
.site-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(14px,2.4vw,28px);
  min-height:70px;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding:9px 0;
}
.brand__badge{
  display:inline-flex;
  align-items:center;
  gap:3px;
  padding:7px 8px;
  border-radius:6px;
  border:1px solid rgba(123,224,179,.42);
  background:linear-gradient(160deg,rgba(18,59,93,.92),rgba(7,26,47,.94));
  box-shadow:inset 0 0 0 1px rgba(7,26,47,.55);
}
.brand__card{
  display:block;
  width:6px;
  height:20px;
  border-radius:2px;
  transition:transform .24s var(--ease);
}
.brand__card--yellow{background:var(--yellow);transform:skewX(-10deg) translateY(-2px)}
.brand__card--red{background:var(--red);transform:skewX(-10deg) translateY(2px)}
.brand:hover .brand__card--yellow{transform:skewX(-10deg) translateY(2px)}
.brand:hover .brand__card--red{transform:skewX(-10deg) translateY(-2px)}
.brand__text{display:flex;flex-direction:column;line-height:1.16}
.brand__name{
  font-family:var(--font-display);
  font-weight:700;
  font-size:19px;
  letter-spacing:.07em;
  color:var(--foam);
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--neon);
}

/* 导航 */
.site-nav{margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__item{flex:0 0 auto}
.site-nav__link{
  display:inline-block;
  padding:9px 13px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:14.5px;
  letter-spacing:.05em;
  color:var(--ink-muted);
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.site-nav__link:hover{
  color:var(--foam);
  background:var(--glass);
  border-color:var(--line);
}
.site-nav__link[aria-current="page"]{
  color:var(--foam);
  font-weight:600;
  background:var(--palm);
  border-color:rgba(123,224,179,.5);
  box-shadow:inset 0 -2px 0 var(--neon);
}

/* 右侧元信息 + 移动按钮 */
.header-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.header-version{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 11px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(158,240,208,.07);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.13em;
  color:var(--teal);
  white-space:nowrap;
}
.header-version__dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 0 3px rgba(123,224,179,.16);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:40px;
  padding:8px 13px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  background:rgba(18,59,93,.7);
  color:var(--foam);
  font-size:13px;
  letter-spacing:.1em;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--neon);background:rgba(18,59,93,.95)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:12px}
.nav-toggle__bars span{
  position:absolute;
  left:0;right:0;
  height:2px;
  border-radius:2px;
  background:var(--neon);
  transition:transform .24s var(--ease),opacity .18s var(--ease);
}
.nav-toggle__bars span:nth-child(1){top:0}
.nav-toggle__bars span:nth-child(2){top:5px}
.nav-toggle__bars span:nth-child(3){top:10px}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) 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(-5px) rotate(-45deg)}
.site-header[data-open] .nav-toggle{border-color:var(--neon);background:rgba(14,122,95,.5)}

/* ---------- 06 · Footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,104px);
  border-top:1px solid var(--line-strong);
  background:
    linear-gradient(180deg,rgba(18,59,93,.55),rgba(7,26,47,.97) 46%),
    var(--deep);
  color:var(--foam);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--neon) 18%,var(--palm) 52%,transparent 92%);
}
.site-footer__inner{
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(40px,6vw,66px) var(--gutter) 0;
}
.site-footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.3fr 1fr;
  gap:clamp(24px,4vw,52px);
}
.footer-col{min-width:0}
.footer-col__title{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--neon);
}
.footer-col__title::before{
  content:"";
  width:14px;height:2px;
  background:var(--palm);
}
.footer-col__text{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-muted);
  max-width:34ch;
}
.footer-col__cta{margin-top:18px}
.brand--footer{padding:0}
.brand--footer .brand__name{font-size:17px}
.footer-brand__note{
  margin-top:16px;
  max-width:30ch;
  font-size:13.5px;
  line-height:1.75;
  color:var(--ink-muted);
}
.footer-list li + li{margin-top:9px}
.footer-list a{
  display:inline-block;
  font-size:14.5px;
  color:var(--ink-muted);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-list a:hover{color:var(--neon);border-bottom-color:rgba(123,224,179,.45)}
.footer-contact__row{margin-bottom:14px}
.footer-contact__row:last-child{margin-bottom:0}
.footer-contact__label{
  display:block;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.17em;
  text-transform:uppercase;
  color:rgba(158,240,208,.62);
}
.footer-contact__value{
  display:block;
  margin-top:3px;
  font-size:14px;
  line-height:1.6;
  color:var(--foam);
  overflow-wrap:anywhere;
}
.footer-contact__value--mono{
  font-family:var(--font-mono);
  letter-spacing:.01em;
}
.site-footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 28px;
  margin-top:clamp(32px,5vw,52px);
  padding:20px 0 30px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--ink-faint);
}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:8px 20px}
.site-footer__legal a{transition:color .18s var(--ease)}
.site-footer__legal a:hover{color:var(--neon)}

/* ---------- 07 · Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 22px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:15px;
  font-weight:600;
  letter-spacing:.05em;
  line-height:1.2;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn--primary{
  background:var(--palm);
  color:var(--foam);
  box-shadow:0 10px 26px -14px rgba(14,122,95,.95);
}
.btn--primary:hover{background:#0f8f6e;transform:translateY(-2px)}
.btn--ghost{
  background:var(--glass);
  color:var(--foam);
  border-color:var(--line-strong);
}
.btn--ghost:hover{border-color:var(--neon);color:var(--neon)}
.btn--accent{background:var(--yellow);color:var(--deep)}
.btn--accent:hover{background:#ffd451;transform:translateY(-2px)}
.btn--sm{min-height:38px;padding:8px 16px;font-size:13.5px}

/* ---------- 08 · Tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border-radius:3px;
  border:1px solid transparent;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  line-height:1.6;
  white-space:nowrap;
}
.tag--red{color:#FFDBD6;background:rgba(226,59,46,.2);border-color:rgba(226,59,46,.6)}
.tag--yellow{color:var(--deep);background:var(--yellow);border-color:rgba(242,194,48,.8)}
.tag--green{color:var(--deep);background:var(--neon);border-color:var(--neon)}
.tag--line{color:var(--teal);background:rgba(158,240,208,.08);border-color:var(--line)}

/* ---------- 09 · Panels & Grids ---------- */
.panel{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(18,59,93,.62),rgba(7,26,47,.62));
  padding:clamp(20px,2.4vw,28px);
}
.panel--glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  border-color:rgba(255,255,255,.14);
}
.panel--solid{
  background:var(--foam);
  border-color:transparent;
  color:var(--deep);
}
.panel--solid h2,.panel--solid h3,.panel--solid h4{color:var(--deep)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}

/* ---------- 10 · Media Frame ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:
    radial-gradient(120% 120% at 20% 0%,rgba(14,122,95,.5),transparent 62%),
    linear-gradient(150deg,var(--night),var(--deep));
}
.media-frame img,
.media-frame video{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.07em;
  line-height:1.5;
  color:var(--foam);
  background:linear-gradient(180deg,rgba(7,26,47,0),rgba(7,26,47,.88));
}

/* ---------- 11 · Breadcrumb ---------- */
.breadcrumb{padding-top:20px}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.07em;
  color:var(--ink-faint);
}
.breadcrumb__item{display:inline-flex;align-items:center}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  margin-right:8px;
  color:rgba(158,240,208,.4);
}
.breadcrumb__link{color:rgba(247,251,248,.72);transition:color .18s var(--ease)}
.breadcrumb__link:hover{color:var(--neon)}
.breadcrumb__item[aria-current="page"]{color:var(--neon)}

/* ---------- 12 · Section Head / Prose / Data ---------- */
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(20px,3vw,32px);
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.section-title{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(24px,3.2vw,32px);
  line-height:1.1;
}
.section-note{
  max-width:46ch;
  font-size:14px;
  line-height:1.65;
  color:var(--ink-muted);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--neon);
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--neon);
}
.prose{
  max-width:68ch;
  font-size:clamp(16px,1.05vw,17px);
  line-height:1.78;
  letter-spacing:.012em;
  color:rgba(247,251,248,.8);
}
.prose p + p{margin-top:1em}
.prose strong{color:var(--foam);font-weight:600}
.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* ---------- 13 · Reveal ---------- */
.reveal{transition:opacity .36s var(--ease),transform .36s var(--ease)}
.has-js .reveal{opacity:0;transform:translateY(14px)}
.has-js .reveal.is-visible{opacity:1;transform:none}

/* ---------- 14 · Responsive ---------- */
@media (max-width:1180px){
  .header-version{display:none}
}

@media (max-width:1024px){
  .site-footer__grid{grid-template-columns:1.4fr 1fr 1.4fr}
  .footer-col--brand{grid-column:1 / -1}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:960px){
  .site-header{position:sticky}
  .nav-toggle{display:inline-flex}
  .site-header__inner{min-height:64px;flex-wrap:nowrap}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    margin-left:0;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    padding:0 var(--gutter);
    background:rgba(7,26,47,.98);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line-strong);
    box-shadow:0 24px 40px -30px rgba(0,0,0,.9);
    transition:max-height .28s var(--ease),visibility .28s var(--ease),padding .28s var(--ease);
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    display:block;
    padding:14px 14px;
    font-size:16px;
    border-radius:0;
    border-bottom:1px solid rgba(158,240,208,.1);
  }
  .site-nav__link[aria-current="page"]{
    box-shadow:inset 3px 0 0 var(--neon);
    background:rgba(14,122,95,.55);
    border-bottom-color:rgba(123,224,179,.4);
  }
  .site-header[data-open] .site-nav{
    max-height:min(78vh,520px);
    overflow-y:auto;
    visibility:visible;
    padding:10px var(--gutter) 22px;
  }
  .grid--12 > [class*="span-"]{grid-column:1 / -1}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:760px){
  body{font-size:16px}
  .brand__name{font-size:17px}
  .brand__tag{font-size:9px;letter-spacing:.15em}
  .nav-toggle__label{display:none}
  .nav-toggle{padding:8px 11px}
  .site-footer__grid{grid-template-columns:1fr}
  .site-footer__base{justify-content:flex-start;font-size:11.5px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .section-head{align-items:flex-start}
}

@media (max-width:420px){
  .brand__tag{display:none}
  .header-version{display:none}
}

/* ---------- 15 · 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;
    scroll-behavior:auto !important;
  }
  .has-js .reveal{opacity:1;transform:none}
  .scroll-progress__bar{transition:none}
}