*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:96px;}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,picture,video{display:block;max-width:100%;}
button{font:inherit;color:inherit;}
main{display:block;}

:root{
  --ink-blue:#0D1F2D;
  --deep-rock:#16262F;
  --mountain-teal:#1F7A6B;
  --moss:#7FC3AC;
  --competition-orange:#F26522;
  --terracotta:#C4693F;
  --cream:#F4F1E9;
  --rock-gray:#8FA0A8;
  --rock-gray-deep:#5A6B74;
  --alert-red:#D8412F;
  --text-ink:#0A141A;

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

  --container:1240px;
  --rail-w:280px;
  --gap:24px;
  --radius:6px;
  --radius-sm:2px;
  --edge:rgba(143,160,168,.32);
  --edge-soft:rgba(143,160,168,.18);
  --edge-ink:rgba(10,20,26,.14);
  --ease:160ms ease-out;
}

body{
  background-color:var(--ink-blue);
  background-image:
    linear-gradient(rgba(143,160,168,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,160,168,.07) 1px,transparent 1px);
  background-size:48px 48px;
  background-position:center top;
  color:var(--cream);
  font-family:var(--font-body);
  font-size:1.0625rem;
  font-weight:400;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{
  font-family:var(--font-heading);
  font-weight:900;
  line-height:1.15;
  letter-spacing:-.02em;
  color:inherit;
}
h1{font-size:clamp(2.125rem,4.6vw,3.375rem);}
h2{font-size:clamp(1.625rem,2.8vw,2.125rem);}
h3{font-size:clamp(1.25rem,1.7vw,1.375rem);font-weight:800;letter-spacing:-.01em;}
h4{font-size:1.0625rem;font-weight:800;letter-spacing:0;}

p{margin-bottom:1.2em;}

a{
  color:var(--moss);
  text-decoration:none;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
a:hover{color:var(--cream);}

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

::selection{background:var(--competition-orange);color:var(--ink-blue);}

.skip-link{
  position:absolute;
  left:16px;
  top:-72px;
  z-index:200;
  padding:10px 18px;
  background:var(--cream);
  color:var(--text-ink);
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.08em;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top var(--ease);
}
.skip-link:focus{top:0;color:var(--text-ink);}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:24px;
}
.container--narrow{max-width:880px;}

.prose{max-width:36em;}
.prose p{margin-bottom:1.2em;}
.prose a{border-bottom:2px solid transparent;}
.prose a:hover{border-bottom-color:var(--competition-orange);color:var(--cream);}

.grid{display:grid;gap:var(--gap);}
.grid-12{display:grid;gap:var(--gap);grid-template-columns:repeat(12,minmax(0,1fr));}
.grid-asym{
  display:grid;
  grid-template-columns:var(--rail-w) minmax(0,1fr);
  gap:40px;
  align-items:start;
}

.rail{
  display:flex;
  flex-direction:column;
  gap:20px;
  position:sticky;
  top:96px;
}

.section{padding-block:56px;}
.section--tight{padding-block:32px;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--edge);
  margin-bottom:28px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:.75rem;
  font-weight:500;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--moss);
  margin-bottom:12px;
}
.eyebrow::before{content:"";display:block;width:22px;height:2px;background:var(--competition-orange);}

.panel{
  background:var(--cream);
  color:var(--text-ink);
  border:1px solid var(--edge-ink);
  border-radius:var(--radius);
  padding:28px;
}
.panel .eyebrow{color:var(--mountain-teal);}
.panel a{color:var(--mountain-teal);}
.panel a:hover{color:var(--text-ink);}
.panel--dark{
  background:var(--deep-rock);
  color:var(--cream);
  border-color:var(--edge);
}
.panel--dark .eyebrow{color:var(--moss);}
.panel--dark a{color:var(--moss);}
.panel--dark a:hover{color:var(--cream);}
.panel--glass{
  background:rgba(22,38,47,.58);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  color:var(--cream);
  border:1px solid var(--edge);
}
.panel--flush{padding:0;overflow:hidden;}

.shift-1{transform:translateX(12px);}
.shift-2{transform:translateX(24px);}

.card{
  background:var(--cream);
  color:var(--text-ink);
  border:1px solid var(--edge-ink);
  border-radius:var(--radius);
  padding:22px 24px;
  transition:border-color var(--ease),background-color var(--ease);
}
.card:hover{border-color:var(--mountain-teal);}
.card a{color:var(--mountain-teal);}
.card a:hover{color:var(--text-ink);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  font-weight:500;
  letter-spacing:.08em;
  line-height:1.5;
  border:1px solid currentColor;
  border-radius:var(--radius-sm);
  transition:background-color var(--ease),border-color var(--ease),color var(--ease);
}
.tag--league{background:var(--mountain-teal);color:var(--cream);border-color:var(--mountain-teal);}
.tag--cup{background:var(--terracotta);color:var(--cream);border-color:var(--terracotta);}
.tag--alert{background:var(--alert-red);color:var(--cream);border-color:var(--alert-red);}
.tag--muted{background:transparent;color:var(--rock-gray-deep);border-color:rgba(90,107,116,.45);}
.tag--league:hover,.tag--cup:hover,.tag--alert:hover{filter:brightness(1.08);}

.rule{height:1px;border:0;background:var(--edge);margin:32px 0;}
.rule--ink{background:var(--edge-ink);}

.status-strip{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  padding:12px 0;
  border-top:1px solid var(--edge);
  border-bottom:1px solid var(--edge);
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.12em;
  color:var(--rock-gray);
}

.media{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border-radius:var(--radius);
  background-color:var(--deep-rock);
  background-image:
    linear-gradient(rgba(143,160,168,.18) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,160,168,.18) 1px,transparent 1px);
  background-size:32px 32px;
}
.media > img,
.media > svg,
.media > picture,
.media > video{display:block;width:100%;height:100%;object-fit:cover;}
.media--16x9{aspect-ratio:16 / 9;}
.media--4x3{aspect-ratio:4 / 3;}
.media--3x2{aspect-ratio:3 / 2;}
.media--1x1{aspect-ratio:1 / 1;}
.media--tall{aspect-ratio:3 / 4;}

.breadcrumb{
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.08em;
  color:var(--rock-gray);
  padding:18px 0;
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:rgba(143,160,168,.55);}
.breadcrumb a{color:var(--moss);}
.breadcrumb [aria-current="page"]{color:var(--cream);}

.toc{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:block;
  padding:7px 10px 7px 14px;
  font-size:.875rem;
  line-height:1.6;
  color:var(--rock-gray);
  border-left:2px solid var(--edge);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.toc-link:hover{color:var(--cream);border-left-color:var(--competition-orange);}
.toc-link.is-active{
  color:var(--cream);
  border-left-color:var(--competition-orange);
  background:rgba(31,122,107,.22);
  font-weight:500;
}
.panel .toc-link{color:var(--rock-gray-deep);border-left-color:var(--edge-ink);}
.panel .toc-link:hover{color:var(--text-ink);border-left-color:var(--competition-orange);}
.panel .toc-link.is-active{color:var(--text-ink);border-left-color:var(--competition-orange);background:rgba(31,122,107,.14);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  font-family:var(--font-heading);
  font-size:.9375rem;
  font-weight:800;
  line-height:1.2;
  letter-spacing:.01em;
  text-align:center;
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:background-color var(--ease),border-color var(--ease),color var(--ease);
}
.btn--accent{background:var(--competition-orange);color:var(--ink-blue);border-color:var(--competition-orange);}
.btn--accent:hover{background:#FF7C3E;color:var(--ink-blue);border-color:#FF7C3E;}
.btn--ghost{background:transparent;color:var(--cream);border-color:rgba(244,241,233,.45);}
.btn--ghost:hover{background:rgba(244,241,233,.08);color:var(--moss);border-color:var(--moss);}
.btn--teal{background:var(--mountain-teal);color:var(--cream);border-color:var(--mountain-teal);}
.btn--teal:hover{background:#25897A;color:var(--cream);border-color:#25897A;}
.btn--sm{padding:7px 13px;font-size:.8125rem;}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  color:var(--cream);
  background-color:rgba(13,31,45,.28);
  background-image:linear-gradient(180deg,rgba(13,31,45,.78),rgba(13,31,45,0));
  border-bottom:1px solid transparent;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:background-color 180ms ease-out,border-color 180ms ease-out,top 180ms ease-out;
}
.site-header.is-stuck{
  top:4px;
  background-color:var(--deep-rock);
  background-image:none;
  border-bottom:1px solid var(--edge);
}

.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:28px;
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  min-height:72px;
  padding:10px 24px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--cream);
}
.brand:hover{color:var(--cream);}
.brand-mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  flex:0 0 auto;
  background:var(--mountain-teal);
  color:var(--cream);
  font-family:var(--font-heading);
  font-size:1.25rem;
  font-weight:900;
  letter-spacing:-.03em;
  border-radius:var(--radius-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{
  font-family:var(--font-heading);
  font-size:1.0625rem;
  font-weight:900;
  letter-spacing:.02em;
  color:var(--cream);
}
.brand-tagline{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--rock-gray);
}

.primary-nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list a{
  display:inline-block;
  padding:8px 12px;
  font-size:.9375rem;
  font-weight:500;
  line-height:1.5;
  color:var(--cream);
  border-bottom:2px solid transparent;
  border-radius:var(--radius-sm) var(--radius-sm) 0 0;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.nav-list a:hover{
  color:var(--cream);
  background:rgba(244,241,233,.08);
  border-bottom-color:var(--competition-orange);
}
.nav-list a[aria-current="page"]{
  color:var(--moss);
  border-bottom-color:var(--competition-orange);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex:0 0 auto;
}
.header-pin{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  color:var(--rock-gray);
  padding:4px 8px;
  border:1px dashed rgba(143,160,168,.5);
  border-radius:var(--radius-sm);
  white-space:nowrap;
  transition:color var(--ease),border-color var(--ease);
}
.header-pin:hover{color:var(--moss);border-color:var(--moss);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 12px;
  background:transparent;
  color:var(--cream);
  font-family:var(--font-heading);
  font-size:.875rem;
  font-weight:700;
  line-height:1.2;
  border:1px solid rgba(244,241,233,.45);
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--moss);color:var(--moss);}
.nav-toggle-bars{
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
  border-radius:1px;
  box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor;
}
.nav-toggle-text{white-space:nowrap;}

.site-footer{
  position:relative;
  overflow:hidden;
  background-color:var(--ink-blue);
  color:var(--cream);
  border-top:1px solid var(--edge);
}
.site-footer::before{
  content:"";
  position:absolute;
  right:-140px;
  bottom:-180px;
  width:520px;
  height:520px;
  pointer-events:none;
  background-image:
    radial-gradient(circle,transparent 27.6%,rgba(127,195,172,.11) 28%,transparent 28.4%),
    radial-gradient(circle,transparent 41.6%,rgba(127,195,172,.09) 42%,transparent 42.4%),
    radial-gradient(circle,transparent 55.6%,rgba(127,195,172,.07) 56%,transparent 56.4%);
}
.footer-inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding:56px 24px 28px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(230px,1fr) 2fr;
  gap:48px;
  align-items:start;
  padding-bottom:36px;
  border-bottom:1px solid var(--edge);
}
.footer-brand{display:flex;flex-direction:column;gap:6px;}
.footer-mark{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  color:var(--moss);
  margin:0;
}
.footer-brand-name{
  font-family:var(--font-heading);
  font-size:1.375rem;
  font-weight:900;
  letter-spacing:-.01em;
  color:var(--cream);
  margin:0;
  line-height:1.2;
}
.footer-motto{
  font-size:.9375rem;
  color:var(--rock-gray);
  margin:0;
  line-height:1.7;
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.footer-col{display:flex;flex-direction:column;gap:12px;}
.footer-col-title{
  font-family:var(--font-mono);
  font-size:.75rem;
  font-weight:500;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--rock-gray);
  padding-bottom:8px;
  border-bottom:1px solid var(--edge-soft);
  line-height:1.4;
}
.footer-links{display:flex;flex-direction:column;gap:8px;}
.footer-links a{
  display:inline-block;
  font-size:.9375rem;
  color:var(--cream);
  border-bottom:2px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.footer-links a:hover{color:var(--moss);border-bottom-color:var(--competition-orange);}

.footer-contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:8px 28px;
  padding:24px 0;
  border-bottom:1px solid var(--edge);
  font-family:var(--font-mono);
  font-size:.8125rem;
  line-height:1.7;
  color:var(--rock-gray);
}
.footer-contact-line{margin:0;display:flex;flex-wrap:wrap;gap:8px;}
.footer-contact-label{
  color:var(--moss);
  letter-spacing:.08em;
  flex:0 0 auto;
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  padding-top:20px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.08em;
  line-height:1.7;
  color:var(--rock-gray);
}
.footer-legal-line{margin:0;}
.footer-note{
  margin:0;
  flex:1 1 100%;
  font-family:var(--font-body);
  font-size:.8125rem;
  letter-spacing:0;
  color:var(--rock-gray-deep);
}

@media (max-width:1180px){
  .header-pin{display:none;}
  .nav-list a{padding:8px 9px;font-size:.875rem;}
  .header-inner{gap:20px;}
}

@media (max-width:1024px){
  .grid-asym{grid-template-columns:minmax(0,1fr);gap:32px;}
  .rail{position:static;}
  .shift-1,.shift-2{transform:none;}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:32px;}
}

@media (max-width:900px){
  .site-header{background-color:var(--deep-rock);background-image:none;}
  .site-header.is-stuck{top:0;}
  .nav-toggle{display:inline-flex;}
  .brand-tagline{display:none;}
  .primary-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    justify-content:flex-start;
    padding:10px 20px 20px;
    background:var(--deep-rock);
    border-bottom:1px solid var(--edge);
    max-height:calc(100vh - 84px);
    overflow-y:auto;
  }
  .primary-nav[data-open]{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list a{
    display:block;
    padding:13px 6px;
    font-size:1rem;
    border-bottom:1px solid var(--edge-soft);
    border-radius:0;
  }
  .nav-list a:hover{background:rgba(244,241,233,.06);}
  .nav-list a[aria-current="page"]{background:rgba(31,122,107,.28);}
  .header-inner{flex-wrap:nowrap;min-height:64px;padding:10px 20px;}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
}

@media (max-width:680px){
  body{font-size:1rem;line-height:1.75;}
  .container{padding-inline:20px;}
  .header-inner{padding:10px 16px;gap:12px;}
  .brand-mark{width:32px;height:32px;font-size:1.0625rem;}
  .brand-name{font-size:.9375rem;}
  .btn--sm{padding:7px 10px;font-size:.75rem;}
  .btn--ghost.btn--sm{display:none;}
  .panel{padding:20px;}
  .card{padding:18px;}
  .section{padding-block:36px;}
  .footer-inner{padding:40px 20px 24px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-contact{grid-template-columns:minmax(0,1fr);}
  .footer-legal{justify-content:flex-start;gap:6px 16px;}
  .status-strip{font-size:.6875rem;letter-spacing:.08em;gap:8px 16px;}
}

@media (max-width:360px){
  .brand-text{display:none;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}