/* ============================================================
   BSPORTS赛事 · 共享站级样式 / assets/site.css
   结构：轨道（索引）—场域（内容）—数据板（表格卡片）
   ============================================================ */

/* 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,h5,p,ul,ol,li,figure,blockquote,hr{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
hr{border:0}

/* 2 · Tokens ----------------------------------------------- */
:root{
  --ink-pitch:#0B2B24;
  --green-black:#061713;
  --neon-cyan:#3DF5D0;
  --track-orange:#FF6A2B;
  --signal-white:#F6F7F2;
  --cream-paper:#EFE6D2;
  --brown-black:#2A1D16;
  --steel-mist:#8FA79E;
  --cyan-dim:#1C7F6E;

  --line:rgba(143,167,158,.26);
  --line-soft:rgba(143,167,158,.13);

  --font-display:"Oswald","Barlow Condensed","Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --fs-body:clamp(15px,0.55vw + 13.4px,17px);
  --gutter:clamp(18px,4vw,52px);
  --maxw:1280px;
  --rail-w:112px;
  --bar-h:62px;
  --ease:cubic-bezier(.22,.7,.32,1);
}

/* 3 · Base ------------------------------------------------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.75;
  color:var(--signal-white);
  background-color:var(--green-black);
  background-image:
    radial-gradient(120% 78% at 6% -14%, rgba(28,127,110,.52), transparent 58%),
    radial-gradient(88% 58% at 106% 2%, rgba(61,245,208,.13), transparent 62%),
    linear-gradient(180deg, rgba(11,43,36,.92) 0%, rgba(6,23,19,.99) 100%);
  background-repeat:no-repeat;
  background-size:cover;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.06;letter-spacing:-.01em}
h1{font-size:clamp(34px,6vw,72px)}
h2{font-size:clamp(25px,3.4vw,42px)}
h3{font-size:clamp(18px,1.9vw,24px);line-height:1.3}
p{max-width:68ch}
strong{color:var(--neon-cyan);font-weight:700}
::selection{background:var(--track-orange);color:var(--green-black)}

:focus-visible{outline:2px solid var(--neon-cyan);outline-offset:3px;border-radius:2px}
a:focus-visible,button:focus-visible{outline-offset:4px}

/* 4 · 通用组件 --------------------------------------------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}

.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  padding:10px 16px;border-radius:var(--radius);
  background:var(--neon-cyan);color:var(--green-black);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  transform:translateY(-180%);
  transition:transform .16s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--radius);
  border:1px solid transparent;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;line-height:1.2;
  text-align:center;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.btn--solid{
  background:var(--track-orange);color:#180904;border-color:var(--track-orange);
  box-shadow:0 10px 24px rgba(255,106,43,.24);
}
.btn--solid:hover{background:#FF8347;border-color:#FF8347;transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--neon-cyan);border-color:rgba(61,245,208,.45)}
.btn--ghost:hover{background:rgba(61,245,208,.12);border-color:var(--neon-cyan)}
.btn--block{width:100%}
.btn:active{transform:translateY(1px)}

.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--steel-mist);
}
.crumbs a:hover{color:var(--neon-cyan)}
.crumbs__sep{color:var(--cyan-dim)}

.prose{max-width:68ch}
.prose > * + *{margin-top:1.05em}
.prose h2,.prose h3{margin-top:1.7em}
.prose li{position:relative;padding-left:18px}
.prose li + li{margin-top:.4em}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1px;background:var(--track-orange)}

.grid{display:grid;gap:clamp(14px,2vw,26px);grid-template-columns:1fr}
@media (min-width:720px){.grid--2{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.grid--3{grid-template-columns:repeat(3,1fr)}}

.card{
  position:relative;padding:clamp(16px,2vw,26px);
  background:rgba(11,43,36,.62);
  border:1px solid var(--line);
  box-shadow:0 14px 32px rgba(0,0,0,.26);
}
.card__head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line-soft);
}
.card__title{font-family:var(--font-display);font-size:clamp(17px,1.7vw,21px);line-height:1.25}
.card__body{font-size:15.5px;color:rgba(246,247,242,.82)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border-radius:var(--radius);
  border:1px solid var(--line);color:var(--steel-mist);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;line-height:1.4;
}
.tag--cyan{color:var(--neon-cyan);border-color:rgba(61,245,208,.46)}
.tag--orange{color:var(--track-orange);border-color:rgba(255,106,43,.5)}

.paper{
  padding:clamp(16px,2.2vw,28px);
  background:var(--cream-paper);color:var(--brown-black);
  border:1px solid rgba(42,29,22,.2);
  box-shadow:0 16px 36px rgba(0,0,0,.32);
}
.paper__title{font-family:var(--font-display);font-size:clamp(18px,2vw,23px);color:var(--brown-black)}
.paper a{color:#7A2E10;text-decoration:underline;text-underline-offset:3px}

.section-head{
  display:grid;gap:8px;
  padding-bottom:14px;margin-bottom:clamp(20px,3vw,34px);
  border-bottom:1px solid var(--line);
}
.section-head__num{font-family:var(--font-mono);font-size:11px;letter-spacing:.3em;color:var(--track-orange)}
.section-head__title{font-size:clamp(23px,3.2vw,40px)}
.section-head__note{font-size:14px;color:var(--steel-mist)}

.media{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(28,127,110,.5), rgba(6,23,19,.92) 62%),
    repeating-linear-gradient(90deg, rgba(61,245,208,.14) 0 1px, transparent 1px 24px);
}
.media img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media__cap{
  position:absolute;left:0;bottom:0;padding:8px 12px;
  background:rgba(6,23,19,.84);color:var(--steel-mist);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
}

[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* 5 · Header（移动：吸顶条 + 抽屉） ------------------------ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(180deg,#0B2B24 0%,#061713 100%);
  border-bottom:1px solid var(--line);
}
.site-header__bar{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  height:var(--bar-h);padding:0 var(--gutter);
}

.brand{display:flex;align-items:center;gap:10px;color:var(--signal-white)}
.brand__mark{
  display:grid;place-items:center;
  width:34px;height:34px;
  border:1px solid var(--neon-cyan);
  background:rgba(61,245,208,.08);
  color:var(--neon-cyan);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;
  box-shadow:0 0 0 1px rgba(61,245,208,.1),0 8px 18px rgba(0,0,0,.4);
}
.brand__text{display:flex;flex-direction:column;gap:1px;line-height:1.15;min-width:0}
.brand__name{font-family:var(--font-display);font-size:14px;font-weight:700;letter-spacing:.04em}
.brand__sub{font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;color:var(--steel-mist);text-transform:uppercase}

.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;
  min-height:40px;padding:9px 13px;
  border:1px solid rgba(61,245,208,.4);border-radius:var(--radius);
  color:var(--neon-cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  transition:background-color .16s var(--ease),border-color .16s var(--ease);
}
.nav-toggle:hover{background:rgba(61,245,208,.1);border-color:var(--neon-cyan)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:space-between;width:16px;height:14px}
.nav-toggle__bars span{display:block;height:2px;background:currentColor;transition:transform .18s var(--ease),opacity .18s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.primary-nav{
  position:fixed;left:0;top:var(--bar-h);bottom:0;z-index:90;
  width:min(86vw,340px);
  display:flex;flex-direction:column;gap:14px;
  padding:20px var(--gutter) 30px;
  background:linear-gradient(180deg,#0B2B24 0%,#061713 100%);
  border-right:1px solid rgba(61,245,208,.3);
  box-shadow:26px 0 60px rgba(0,0,0,.55);
  overflow-y:auto;scrollbar-width:none;
  transform:translateX(-104%);visibility:hidden;
  transition:transform .22s var(--ease),visibility .22s var(--ease);
}
.primary-nav::-webkit-scrollbar{display:none}
.primary-nav[data-open="true"]{transform:translateX(0);visibility:visible}

.primary-nav__caption{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.3em;
  color:var(--track-orange);text-transform:uppercase;
}
.primary-nav__caption::after{content:"";display:block;width:36px;height:1px;margin-top:8px;background:var(--neon-cyan)}

.site-header__descriptor{
  font-family:var(--font-mono);font-size:11px;line-height:1.9;letter-spacing:.1em;
  color:var(--steel-mist);
}

.primary-nav__list{display:flex;flex-direction:column;gap:2px;width:100%}
.primary-nav__item{display:block}
.primary-nav__link{
  display:flex;align-items:baseline;gap:12px;
  padding:11px 12px;
  border-left:2px solid transparent;
  color:rgba(246,247,242,.86);
  transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease);
}
.primary-nav__link:hover{color:var(--signal-white);background:rgba(61,245,208,.08);border-left-color:var(--cyan-dim)}
.primary-nav__num{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--steel-mist);transition:color .16s var(--ease)}
.primary-nav__label{font-size:15px;letter-spacing:.06em;line-height:1.4}
.primary-nav__link[aria-current="page"]{
  color:var(--neon-cyan);background:rgba(61,245,208,.1);border-left-color:var(--neon-cyan);
}
.primary-nav__link[aria-current="page"] .primary-nav__num{color:var(--track-orange)}

.primary-nav__actions{display:flex;flex-direction:column;gap:8px;width:100%}
.primary-nav__note{
  margin-top:auto;padding-top:12px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--steel-mist);
}

.rail-meter{display:none}
.nav-scrim{
  position:fixed;inset:0;z-index:85;
  background:rgba(4,14,11,.68);
}
.nav-scrim[hidden]{display:none}

body.is-nav-open{overflow:hidden}

/* 6 · Header（桌面：左侧纵向轨道） ------------------------- */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  body.is-nav-open{overflow:auto}

  .skip-link{left:calc(var(--rail-w) + 12px)}

  .site-header{
    position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);
    display:flex;flex-direction:column;align-items:stretch;
    padding:16px 0 18px;gap:0;
    background:linear-gradient(180deg,#0B2B24 0%,#061713 60%,#040F0C 100%);
    border-bottom:0;border-right:1px solid rgba(143,167,158,.22);
    z-index:80;overflow:hidden;
  }
  .site-header::after{
    content:"";position:absolute;top:0;left:0;right:0;height:3px;
    background:linear-gradient(90deg,var(--track-orange),rgba(255,106,43,0));
  }
  .site-header__bar{
    height:auto;min-height:0;padding:0 8px;
    flex-direction:column;align-items:center;gap:0;
  }
  .site-header .brand{flex-direction:column;gap:8px;text-align:center}
  .site-header .brand__text{align-items:center}
  .site-header .brand__name{font-size:12.5px;letter-spacing:.05em}
  .site-header .brand__sub{font-size:8.5px;letter-spacing:.18em}
  .nav-toggle{display:none}

  .primary-nav{
    position:static;transform:none;visibility:visible;
    width:100%;flex:1 1 auto;min-height:0;
    padding:16px 10px 0;
    background:transparent;border-right:0;box-shadow:none;
    align-items:center;gap:10px;
    overflow-y:auto;
    transition:none;
  }
  .primary-nav[data-open="false"]{transform:none;visibility:visible}
  .primary-nav__caption{text-align:center;font-size:9px;letter-spacing:.24em}
  .primary-nav__caption::after{margin-inline:auto}
  .site-header__descriptor{
    font-size:9.5px;line-height:1.85;letter-spacing:.06em;
    text-align:center;max-width:100%;
  }
  .primary-nav__list{gap:0;align-items:center}
  .primary-nav__link{
    flex-direction:column;align-items:center;gap:5px;
    padding:9px 2px;width:100%;
    border-left:0;border-top:2px solid transparent;
  }
  .primary-nav__link:hover{background:rgba(61,245,208,.07);border-top-color:var(--cyan-dim);border-left-color:transparent}
  .primary-nav__link[aria-current="page"]{
    background:rgba(61,245,208,.09);
    border-top-color:var(--neon-cyan);
    border-left-color:transparent;
  }
  .primary-nav__label{writing-mode:vertical-rl;font-size:13px;letter-spacing:.2em}
  .primary-nav__actions{padding:0 14px;gap:7px}
  .primary-nav__actions .btn{
    writing-mode:vertical-rl;width:100%;padding:12px 8px;
    font-size:10.5px;letter-spacing:.18em;
  }
  .primary-nav__note{text-align:center;font-size:9px;letter-spacing:.16em}

  .rail-meter{
    display:block;position:absolute;right:0;top:0;bottom:0;width:3px;
    background:rgba(143,167,158,.16);
  }
  .rail-meter__fill{
    display:block;width:100%;height:0;
    background:linear-gradient(180deg,var(--neon-cyan) 0%,var(--track-orange) 100%);
    transition:height .1s linear;
  }
  .nav-scrim{display:none}
}

@media (min-width:1024px) and (max-height:820px){
  .site-header__descriptor{display:none}
  .primary-nav__note{display:none}
  .primary-nav__link{padding:6px 2px}
}

/* 7 · Footer ---------------------------------------------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:linear-gradient(180deg,#061713 0%,#08211B 100%);
  border-top:1px solid rgba(61,245,208,.28);
  color:var(--signal-white);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;height:3px;
  width:clamp(84px,22vw,260px);
  background:var(--track-orange);
}
.site-footer__inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:clamp(32px,5vw,64px) var(--gutter) clamp(24px,3vw,40px);
  display:grid;gap:clamp(26px,4vw,44px);grid-template-columns:1fr;
}
@media (min-width:760px){
  .site-footer__inner{grid-template-columns:repeat(2,1fr)}
  .footer-contact{grid-column:span 2}
}
@media (min-width:1100px){
  .site-footer__inner{grid-template-columns:1.05fr 1.6fr .95fr}
  .footer-contact{grid-column:auto}
}

.site-footer__mast{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.brand--footer .brand__mark{width:40px;height:40px;font-size:13px}
.brand--footer .brand__name{font-size:16px}
.site-footer__summary{
  font-size:14.5px;line-height:1.8;color:rgba(246,247,242,.78);max-width:34ch;
}

.footer-index__title{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.3em;
  color:var(--neon-cyan);
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.footer-index__grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
@media (min-width:560px){.footer-index__grid{grid-template-columns:repeat(3,1fr)}}
.footer-index__label{
  margin-bottom:8px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:var(--track-orange);
}
.footer-index__list{display:flex;flex-direction:column;gap:6px}
.footer-index__link{
  display:inline-block;font-size:13.5px;line-height:1.6;
  color:rgba(246,247,242,.8);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-index__link:hover{color:var(--neon-cyan);border-bottom-color:rgba(61,245,208,.5)}

.footer-contact{padding-top:6px}
@media (min-width:1100px){
  .footer-contact{border-left:1px solid var(--line-soft);padding-left:clamp(18px,2vw,28px)}
}
.footer-contact__title{
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.3em;color:var(--neon-cyan);
}
.footer-contact__list{display:flex;flex-direction:column;gap:10px}
.footer-contact__item{display:flex;flex-direction:column;gap:2px}
.footer-contact__key{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:var(--steel-mist)}
.footer-contact__value{
  font-family:var(--font-mono);font-size:12.5px;line-height:1.7;
  color:var(--signal-white);word-break:break-word;
}
.footer-contact__note{
  margin-top:14px;max-width:32ch;
  font-size:12px;line-height:1.75;color:var(--steel-mist);
}

.site-footer__base{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:16px var(--gutter) 26px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 22px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--steel-mist);
}
.site-footer__meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 20px}
.site-footer__copy{color:rgba(143,167,158,.96)}
.site-footer__icp{color:rgba(143,167,158,.82)}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.site-footer__legal a{color:rgba(246,247,242,.82);border-bottom:1px solid transparent;padding-bottom:1px}
.site-footer__legal a:hover{color:var(--neon-cyan);border-bottom-color:rgba(61,245,208,.5)}

/* 8 · 动效降级 --------------------------------------------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .primary-nav{transition:none}
  .rail-meter__fill{transition:none}
}