/* ============================================================
   乐鱼赛事 · /assets/site.css
   深海数据舱 + 奶油档案纸 · 侧边轨道导航 · 极细边界
   ============================================================ */

/* ---------- 1 · reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%;height:auto}

/* ---------- 2 · tokens ---------- */
:root{
  --ink:#0A1E2E;
  --hull:#06111C;
  --paper:#F2E8D8;
  --mist:#F7FAFC;
  --brown:#241B17;
  --cyan:#3CE0CF;
  --orange:#FF7A18;
  --alert:#E5482B;
  --slate:#7C8FA3;
  --table:#1A3044;
  --mint:#4BD08A;

  --line:rgba(60,224,207,.22);
  --line-soft:rgba(124,143,163,.34);
  --line-paper:rgba(36,27,23,.18);

  --rail-w:132px;
  --header-h:62px;

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

  --dur:190ms;
  --ease:cubic-bezier(.4,0,.2,1);
  --radius:2px;
}

/* ---------- 3 · base ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--mist);
  background:var(--ink);
  min-height:100vh;
  padding-top:var(--header-h);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
@media (min-width:1024px){
  body{font-size:17px;padding-top:0;padding-left:var(--rail-w)}
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.12;
}
h1{font-size:clamp(34px,5vw,68px)}
h2{font-size:clamp(26px,3.4vw,42px)}
h3{font-size:clamp(19px,2vw,24px);font-weight:700;letter-spacing:-.01em}
p{max-width:68ch}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:1px;
}
::selection{background:var(--cyan);color:var(--hull)}

.mono,.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.visually-hidden{
  position:absolute!important;
  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;
}

/* ---------- 4 · skip link ---------- */
.skip-link{
  position:fixed;
  top:0;left:0;
  z-index:200;
  padding:12px 20px;
  background:var(--orange);
  color:#0B1016;
  font-weight:700;
  font-size:14px;
  letter-spacing:.02em;
  border-radius:0 0 var(--radius) 0;
  transform:translateY(-120%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{
  transform:translateY(0);
  outline:2px solid var(--cyan);
  outline-offset:2px;
}

/* ---------- 5 · header shell ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  height:var(--header-h);
  z-index:80;
  display:flex;
  align-items:center;
  padding:0 18px;
  background:var(--hull);
  color:var(--mist);
  border-bottom:1px solid var(--line);
}

.rail-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:100%;
  min-width:0;
}

/* brand */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
  padding:2px 0;
}
.brand-glyph{
  flex:none;
  display:grid;
  place-items:center;
  width:34px;height:34px;
  font-family:var(--font-num);
  font-weight:700;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--hull);
  background:var(--cyan);
  border-radius:var(--radius);
  box-shadow:0 0 0 1px rgba(60,224,207,.45),0 6px 16px rgba(60,224,207,.18);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.brand:hover .brand-glyph{
  background:var(--orange);
  box-shadow:0 0 0 1px rgba(255,122,24,.55),0 6px 18px rgba(255,122,24,.28);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:1px;
  min-width:0;
  line-height:1.15;
}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:17px;
  letter-spacing:.02em;
  color:var(--mist);
  white-space:nowrap;
}
.brand-tagline{
  font-size:10px;
  letter-spacing:.03em;
  color:var(--slate);
  white-space:nowrap;
}

/* mobile toggle */
.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:44px;
  padding:8px 13px;
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  color:var(--mist);
  font-family:var(--font-display);
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);background:rgba(60,224,207,.08)}
.nav-toggle-bars{
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:4px;
  width:18px;
  height:12px;
}
.nav-toggle-bars span{
  display:block;
  width:100%;
  height:2px;
  border-radius:1px;
  background:var(--cyan);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle-text{line-height:1}

/* ---------- 6 · navigation (mobile drawer) ---------- */
.site-nav{
  position:fixed;
  top:var(--header-h);
  left:0;
  right:0;
  max-height:calc(100vh - var(--header-h));
  overflow-y:auto;
  padding:8px 16px 24px;
  background:var(--hull);
  border-bottom:1px solid var(--line);
  box-shadow:0 22px 44px rgba(3,10,16,.55);
  visibility:hidden;
  opacity:0;
  transform:translateY(-10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility 0s linear var(--dur);
}
.site-header[data-open="true"] .site-nav{
  visibility:visible;
  opacity:1;
  transform:translateY(0);
  transition-delay:0s;
}

.nav-caption{
  font-family:var(--font-display);
  font-size:10px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--slate);
  padding:10px 12px 8px;
  max-width:none;
}

.nav-list{display:flex;flex-direction:column;gap:2px}

.nav-item{display:block}

.nav-link{
  display:flex;
  align-items:center;
  gap:11px;
  min-height:46px;
  padding:11px 12px;
  border-left:2px solid transparent;
  border-radius:0 var(--radius) var(--radius) 0;
  color:#D5E1EA;
  font-size:14.5px;
  font-weight:500;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible{
  background:rgba(60,224,207,.09);
  border-left-color:var(--cyan);
  color:#fff;
}
.nav-link[aria-current="page"]{
  background:rgba(255,122,24,.15);
  border-left-color:var(--orange);
  color:#fff;
}
.nav-num{
  flex:none;
  font-family:var(--font-num);
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--cyan);
  transition:color var(--dur) var(--ease);
}
.nav-link[aria-current="page"] .nav-num{color:var(--orange)}
.nav-text{line-height:1.3}

.nav-utility{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
  padding:14px 12px 0;
  border-top:1px dashed var(--line-soft);
}
.utility-link{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:6px 12px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--cyan);
  border:1px solid rgba(60,224,207,.36);
  border-radius:var(--radius);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.utility-link:hover,
.utility-link:focus-visible{
  background:var(--orange);
  border-color:var(--orange);
  color:#0B1016;
}

/* rail decorations (desktop only) */
.rail-mark{display:none}
.status-dot{
  flex:none;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 3px rgba(75,208,138,.16);
  animation:ly-pulse 2.4s ease-in-out infinite;
}
@keyframes ly-pulse{0%,100%{opacity:1}50%{opacity:.42}}

/* scroll meter */
.scroll-meter{
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:rgba(124,143,163,.18);
  overflow:hidden;
  pointer-events:none;
}
.scroll-meter-bar{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--orange) 100%);
  will-change:transform;
}

/* ---------- 7 · header desktop rail ---------- */
@media (min-width:1024px){
  .site-header{
    inset:0 auto 0 0;
    width:var(--rail-w);
    height:100vh;
    height:100dvh;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:24px 0 18px;
    border-bottom:0;
    border-right:1px solid var(--line);
    overflow-y:auto;
    overflow-x:hidden;
  }
  .rail-top{
    flex-direction:column;
    gap:16px;
    padding:0 12px;
    width:100%;
  }
  .brand{
    flex-direction:column;
    gap:9px;
    text-align:center;
    width:100%;
  }
  .brand-glyph{width:44px;height:44px;font-size:15px}
  .brand-text{align-items:center;gap:3px}
  .brand-name{font-size:18px;letter-spacing:.04em}
  .brand-tagline{white-space:normal;line-height:1.4;font-size:10px}
  .nav-toggle{display:none}

  .site-nav{
    position:static;
    flex:1 1 auto;
    width:100%;
    max-height:none;
    overflow:visible;
    visibility:visible;
    opacity:1;
    transform:none;
    background:transparent;
    border:0;
    box-shadow:none;
    padding:26px 10px 0;
    transition:none;
  }
  .nav-caption{
    text-align:center;
    padding:0 0 12px;
    font-size:9.5px;
    letter-spacing:.22em;
  }
  .nav-list{gap:3px}
  .nav-link{
    flex-direction:column;
    align-items:center;
    gap:3px;
    min-height:0;
    padding:10px 6px;
    font-size:12.5px;
    line-height:1.35;
    text-align:center;
    border-left:0;
    border-top:2px solid transparent;
    border-radius:var(--radius);
  }
  .nav-link:hover,
  .nav-link:focus-visible{border-top-color:var(--cyan)}
  .nav-link[aria-current="page"]{border-top-color:var(--orange)}
  .nav-num{font-size:10px}
  .nav-text{display:block}

  .nav-utility{
    flex-direction:column;
    flex-wrap:nowrap;
    gap:6px;
    margin-top:16px;
    padding:16px 2px 0;
  }
  .utility-link{
    justify-content:center;
    text-align:center;
    padding:7px 4px;
    font-size:11px;
    line-height:1.45;
    min-height:34px;
  }

  .rail-mark{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:12px;
    margin-top:auto;
    padding:20px 0 0;
  }
  .rail-mark-text{
    writing-mode:vertical-rl;
    font-family:var(--font-num);
    font-size:9px;
    font-weight:600;
    letter-spacing:.26em;
    text-transform:uppercase;
    color:var(--slate);
  }
}

/* ---------- 8 · footer ---------- */
.site-footer{
  margin-top:0;
  background:linear-gradient(180deg,var(--hull) 0%,var(--ink) 78%);
  border-top:1px solid var(--line);
  color:var(--mist);
  padding:44px 18px 0;
}
.site-footer::before{
  content:"";
  display:block;
  height:5px;
  max-width:1180px;
  margin:0 auto 32px;
  background:repeating-linear-gradient(90deg,var(--cyan) 0 2px,transparent 2px 16px);
  opacity:.4;
}

.footer-grid{
  display:grid;
  gap:32px;
  max-width:1180px;
  margin:0 auto;
}

.footer-logo{
  font-family:var(--font-display);
  font-weight:800;
  font-size:23px;
  letter-spacing:.03em;
  color:var(--cyan);
  max-width:none;
}
.footer-summary{
  margin-top:10px;
  font-size:14px;
  line-height:1.8;
  color:#B4C4D2;
  max-width:38ch;
}
.footer-badge{
  display:flex;
  align-items:center;
  gap:9px;
  margin-top:16px;
  font-family:var(--font-num);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--slate);
  max-width:none;
}
.footer-badge::before{
  content:"";
  flex:none;
  width:24px;
  height:1px;
  background:var(--cyan);
}

.footer-title{
  font-family:var(--font-display);
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--orange);
  margin-bottom:14px;
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{
  display:inline-block;
  padding:2px 0;
  font-size:14px;
  color:#C6D4E1;
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.footer-list a:hover,
.footer-list a:focus-visible{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}

.footer-contact{display:flex;flex-direction:column;gap:9px}
.footer-contact-line{
  display:flex;
  gap:10px;
  font-size:13.5px;
  line-height:1.7;
  color:#C6D4E1;
  max-width:none;
}
.contact-key{
  flex:none;
  width:34px;
  padding-top:3px;
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--slate);
}
.contact-val{min-width:0;word-break:break-word}
.contact-val--mono{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:12.5px;
  letter-spacing:-.01em;
}
.footer-note{
  margin-top:14px;
  padding-left:11px;
  border-left:2px solid var(--orange);
  font-size:12px;
  line-height:1.7;
  color:var(--slate);
  max-width:32ch;
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 22px;
  max-width:1180px;
  margin:36px auto 0;
  padding:18px 0 26px;
  border-top:1px solid var(--line-soft);
  font-size:12px;
  color:var(--slate);
}
.footer-bottom p{max-width:none}
.footer-meta{
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.04em;
}
.footer-bottom [data-year]{font-family:var(--font-num);color:#C6D4E1}

@media (min-width:720px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px 28px}
  .footer-brand{grid-column:1 / -1}
}
@media (min-width:1024px){
  .site-footer{padding:56px 40px 0}
  .footer-grid{grid-template-columns:1.55fr .8fr .8fr 1.3fr;gap:44px}
  .footer-brand{grid-column:auto}
}
@media (min-width:1440px){
  .site-footer{padding:64px 56px 0}
}

/* ---------- 9 · shared layout utilities ---------- */
.container{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:18px;
}
@media (min-width:1024px){.container{padding-inline:40px}}
@media (min-width:1440px){.container{padding-inline:56px}}

.section{
  padding-block:clamp(40px,6vw,84px);
  border-bottom:1px solid var(--line);
}
.section:last-of-type{border-bottom:0}

.surface-paper{
  background:var(--paper);
  color:var(--brown);
  border-color:var(--line-paper);
}
.surface-paper h1,
.surface-paper h2,
.surface-paper h3,
.surface-paper h4{color:var(--brown)}
.surface-paper a{color:#8A3A16}
.surface-paper a:hover{color:var(--alert)}
.surface-paper .tag{
  background:rgba(36,27,23,.08);
  color:var(--brown);
  border-color:rgba(36,27,23,.22);
}

.prose{
  max-width:68ch;
  font-size:16px;
  line-height:1.8;
  color:#D3DFE9;
}
.prose > * + *{margin-top:1em}
.prose h2{margin-top:1.8em;color:var(--mist)}
.prose h3{margin-top:1.5em;color:var(--mist)}
.prose ul,.prose ol{padding-left:1.2em}
.prose ul li{list-style:none;position:relative;padding-left:1em}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:1px;
  background:var(--cyan);
}
.prose ol{counter-reset:ly}
.prose ol li{list-style:none;position:relative;padding-left:1.6em}
.prose ol li::before{
  counter-increment:ly;
  content:counter(ly,decimal-leading-zero);
  position:absolute;
  left:0;top:.1em;
  font-family:var(--font-num);
  font-size:11px;
  color:var(--cyan);
}
.surface-paper .prose{color:var(--brown)}
.surface-paper .prose h2,
.surface-paper .prose h3{color:var(--brown)}
.surface-paper .prose ul li::before{background:var(--alert)}

.grid{display:grid;gap:20px;--grid-min:260px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,var(--grid-min)),1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
@media (min-width:720px){.grid{gap:24px}}

/* ---------- 10 · buttons & tags ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:44px;
  padding:11px 22px;
  border:1px solid var(--cyan);
  border-radius:var(--radius);
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  letter-spacing:.05em;
  color:var(--cyan);
  background:transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn:hover,
.btn:focus-visible{
  background:var(--cyan);
  color:var(--hull);
  box-shadow:0 8px 22px rgba(60,224,207,.22);
}
.btn:active{transform:translateY(1px)}

.btn--primary{
  background:var(--orange);
  border-color:var(--orange);
  color:#0B1016;
}
.btn--primary:hover,
.btn--primary:focus-visible{
  background:#FF9440;
  border-color:#FF9440;
  color:#0B1016;
  box-shadow:0 8px 22px rgba(255,122,24,.28);
}

.btn--ghost{
  background:transparent;
  border-color:var(--line-soft);
  color:var(--mist);
}
.btn--ghost:hover,
.btn--ghost:focus-visible{
  background:transparent;
  border-color:var(--cyan);
  color:var(--cyan);
  box-shadow:none;
}

.surface-paper .btn--ghost{border-color:rgba(36,27,23,.3);color:var(--brown)}
.surface-paper .btn--ghost:hover{border-color:var(--alert);color:var(--alert)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-display);
  font-size:11px;
  font-weight:700;
  letter-spacing:.1em;
  text-transform:uppercase;
  line-height:1.6;
  color:var(--cyan);
  background:rgba(60,224,207,.12);
  border:1px solid rgba(60,224,207,.36);
  border-radius:var(--radius);
}
.tag--live{
  color:#FFB27A;
  background:rgba(255,122,24,.15);
  border-color:rgba(255,122,24,.45);
}
.tag--alert{
  color:#FF8F79;
  background:rgba(229,72,43,.15);
  border-color:rgba(229,72,43,.46);
}

/* ---------- 11 · breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:16px 0 14px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--slate);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;max-width:none}
.breadcrumb li + li::before{
  content:"/";
  color:rgba(124,143,163,.58);
}
.breadcrumb a{
  color:#B4C4D2;
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.breadcrumb a:hover,
.breadcrumb a:focus-visible{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}
.breadcrumb [aria-current="page"]{color:var(--cyan)}

/* ---------- 12 · figure / image containers ---------- */
.figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background-color:#0B1D2C;
  background-image:
    repeating-linear-gradient(0deg,rgba(60,224,207,.07) 0 1px,transparent 1px 30px),
    repeating-linear-gradient(90deg,rgba(60,224,207,.07) 0 1px,transparent 1px 30px);
  box-shadow:0 14px 34px rgba(3,10,16,.45);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.figure:hover{
  border-color:rgba(60,224,207,.5);
  transform:translateY(-2px);
  box-shadow:0 20px 44px rgba(3,10,16,.55);
}
.figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.figure--wide{aspect-ratio:16 / 9}
.figure--square{aspect-ratio:1 / 1}
.figure--tall{aspect-ratio:3 / 4}
.figure-caption{
  margin-top:10px;
  font-size:12.5px;
  line-height:1.65;
  color:var(--slate);
  max-width:60ch;
}
.surface-paper .figure{border-color:var(--line-paper);box-shadow:0 12px 28px rgba(36,27,23,.16)}
.surface-paper .figure-caption{color:#6B5A4E}

/* ---------- 13 · motion preferences ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .figure:hover{transform:none}
  .status-dot{animation:none}
}