/* ============ NG赛场 · shared site kit ============ */
:root{
  --night:#141210;
  --ink:#0F3B32;
  --ink-2:#1E5A4D;
  --sand:#D6A64A;
  --sand-lit:#F2C46D;
  --red:#D9432F;
  --cyan:#5FE3C0;
  --dust:#9F927C;
  --paper:#F6F0E4;
  --dune:#6B5A3E;

  --line:rgba(214,166,74,.30);
  --line-2:rgba(246,240,228,.13);

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

  --wrap:1280px;
  --gutter:clamp(16px,4vw,48px);
  --hard:6px 6px 0 rgba(0,0,0,.55);
  --hard-sand:6px 6px 0 rgba(214,166,74,.20);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(rgba(246,240,228,.028) 1px,transparent 1px),
    radial-gradient(rgba(214,166,74,.045) 1px,transparent 1px);
  background-size:3px 3px,9px 9px;
  background-position:0 0,2px 3px;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

main{display:block}
img,svg,video{max-width:100%}
p{text-wrap:pretty;margin:0}
ul,ol{margin:0;padding:0;list-style:none}

h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.08;
  letter-spacing:.005em;
  color:var(--paper);
}
a{color:inherit}
::selection{background:var(--sand);color:#1a1510}

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

main [id],:target{scroll-margin-top:92px}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- containers / typography utilities ---------- */
.wrap{width:min(calc(100% - 2 * var(--gutter)),var(--wrap));margin-inline:auto}

.stack > * + *{margin-top:14px}

.mono{font-family:var(--font-mono);letter-spacing:.06em}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--sand);
  margin:0;
}
.lead{
  font-size:clamp(16px,1.4vw,18px);
  line-height:1.85;
  color:rgba(246,240,228,.86);
  margin:0;
}
.rule{
  height:2px;border:0;margin:0;
  background:linear-gradient(90deg,var(--sand),var(--dune) 62%,transparent);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 22px;
  border:2px solid transparent;border-radius:2px;
  font-family:var(--font-body);font-size:15px;font-weight:600;letter-spacing:.06em;
  text-decoration:none;cursor:pointer;background:none;color:var(--paper);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.btn-primary{
  background:var(--sand);border-color:var(--sand);color:#1a1510;
  box-shadow:4px 4px 0 rgba(0,0,0,.5);
}
.btn-primary:hover{background:var(--sand-lit);border-color:var(--sand-lit);transform:translate(-1px,-1px);box-shadow:6px 6px 0 rgba(0,0,0,.55)}
.btn-primary:active{transform:translate(1px,1px);box-shadow:2px 2px 0 rgba(0,0,0,.55)}
.btn-ghost{
  border-color:var(--line);color:var(--paper);
  background:rgba(246,240,228,.03);
}
.btn-ghost:hover{border-color:var(--sand);color:var(--sand-lit);background:rgba(214,166,74,.10);transform:translateY(-1px)}
.btn-sm{padding:9px 14px;font-size:13px;letter-spacing:.04em}
.btn-block{width:100%}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:200;
  padding:10px 16px;border-radius:2px;
  background:var(--sand);color:#1a1510;
  font-weight:700;font-size:14px;text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background-image:linear-gradient(180deg,rgba(20,18,16,.94),rgba(20,18,16,.58) 64%,rgba(20,18,16,0));
  border-bottom:1px solid transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header[data-state="solid"]{
  background-color:var(--ink);
  background-image:linear-gradient(180deg,rgba(30,90,77,.55),rgba(15,59,50,0));
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.42);
}

.header-shell{
  display:flex;align-items:center;gap:clamp(14px,2.2vw,32px);
  width:min(calc(100% - 2 * var(--gutter)),1400px);
  margin-inline:auto;
  padding-block:11px;
  min-height:68px;
}

.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--paper);flex:0 0 auto}
.brand-mark{
  position:relative;display:grid;place-items:center;
  width:44px;height:44px;
  border:2px solid var(--sand);
  background:linear-gradient(150deg,rgba(214,166,74,.24),rgba(20,18,16,0) 62%);
  font-family:var(--font-display);font-weight:700;font-size:22px;line-height:1;
  letter-spacing:.02em;color:var(--sand-lit);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.brand-mark::after{
  content:"";position:absolute;top:-2px;right:-2px;width:10px;height:10px;
  background:var(--red);clip-path:polygon(100% 0,0 0,100% 100%);
}
.brand:hover .brand-mark{border-color:var(--sand-lit);color:var(--paper)}
.brand-text{display:flex;flex-direction:column;gap:3px}
.brand-word{font-family:var(--font-display);font-weight:500;font-size:20px;line-height:1;letter-spacing:.14em}
.brand-ver{
  font-family:var(--font-mono);font-size:10px;line-height:1.2;
  letter-spacing:.16em;text-transform:uppercase;color:var(--dust);
}

.site-nav{flex:1 1 auto;min-width:0}
.nav-list{
  display:flex;align-items:center;gap:2px;flex-wrap:nowrap;
  counter-reset:nav;
}
.nav-list > li{display:flex}
.nav-list > li:not(.nav-filter){counter-increment:nav}

.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 11px;
  border:1px solid transparent;border-radius:2px;
  color:var(--paper);text-decoration:none;
  font-size:14px;font-weight:500;letter-spacing:.08em;white-space:nowrap;
  transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.nav-link::before{
  content:counter(nav,decimal-leading-zero);
  font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;
  color:var(--dust);transform:translateY(-1px);
}
.nav-link:hover{
  color:var(--sand-lit);border-color:var(--line);
  background:rgba(214,166,74,.08);transform:translateY(-1px);
}
.nav-link[aria-current="page"]{
  color:var(--sand-lit);
  border-color:var(--line);
  background:rgba(214,166,74,.10);
  box-shadow:inset 0 -2px 0 var(--sand);
}
.nav-link[aria-current="page"]::before{color:var(--red)}

.nav-filter{display:none}

.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.league-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 10px;
  border:1px solid var(--line);border-radius:2px;
  background:rgba(15,59,50,.55);
  color:var(--paper);text-decoration:none;
  transition:border-color .16s var(--ease),background-color .16s var(--ease),transform .16s var(--ease);
}
.league-chip-key{font-size:12px;letter-spacing:.06em;color:var(--paper)}
.league-chip-round{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;
  color:var(--sand-lit);padding-left:8px;border-left:1px solid var(--line);
}
.league-chip:hover{
  border-color:var(--sand);background:rgba(214,166,74,.14);transform:translateY(-1px);
}
.league-chip:hover .league-chip-round{color:var(--cyan)}

.scroll-progress{
  position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--sand);
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
  pointer-events:none;
}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;
  background:rgba(15,59,50,.6);
  border:2px solid var(--line);border-radius:2px;
  color:var(--paper);cursor:pointer;
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--sand);background:rgba(214,166,74,.12)}
.nav-toggle-bars{display:grid;gap:5px;width:20px}
.nav-toggle-bars span{
  display:block;height:2px;background:currentColor;
  transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.site-header[data-nav-open="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header[data-nav-open="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.site-header[data-nav-open="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- footer ---------- */
.site-footer{
  background-color:var(--night);
  background-image:radial-gradient(120% 90% at 100% 0,rgba(15,59,50,.78),rgba(20,18,16,0) 62%);
  border-top:2px solid var(--sand);
  color:var(--paper);
}
.footer-top,.footer-mid,.footer-bottom{
  width:min(calc(100% - 2 * var(--gutter)),var(--wrap));
  margin-inline:auto;
}
.footer-top{
  display:grid;grid-template-columns:minmax(240px,1.05fr) minmax(0,1.6fr);
  gap:clamp(24px,4vw,64px);
  padding-block:clamp(36px,6vw,72px) clamp(24px,3vw,40px);
}
.footer-wordmark{
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(40px,7vw,72px);line-height:.94;letter-spacing:.02em;
  color:var(--paper);margin:0;
}
.footer-ver{
  margin:14px 0 0;padding-left:10px;
  border-left:2px solid var(--red);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--sand);
}
.footer-tagline{
  margin:16px 0 0;max-width:38ch;
  font-size:15px;line-height:1.8;color:var(--dust);
}

.footer-nav{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,3vw,32px);
}
.footer-col-title{
  margin:0 0 14px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.18em;text-transform:uppercase;color:var(--sand);
}
.footer-links{display:grid;gap:10px}
.footer-link{
  display:inline-block;padding:2px 0;
  color:rgba(246,240,228,.84);text-decoration:none;font-size:15px;
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),transform .16s var(--ease),border-color .16s var(--ease);
}
.footer-link:hover{color:var(--sand-lit);border-bottom-color:var(--sand);transform:translateX(2px)}

.footer-mid{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,1fr);
  gap:clamp(22px,4vw,56px);
  padding-block:clamp(24px,4vw,40px);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.contact-list{display:grid;gap:12px}
.contact-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px;font-size:15px}
.contact-key{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--dust);
  min-width:88px;flex:0 0 auto;
}
.contact-val{font-family:var(--font-mono);font-size:15px;letter-spacing:.02em;color:var(--paper)}
.contact-val--text{
  font-family:var(--font-body);font-size:14px;line-height:1.72;
  letter-spacing:0;color:rgba(246,240,228,.86);flex:1 1 240px;
}
.copy-btn{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  background:rgba(246,240,228,.04);
  border:1px solid var(--line);border-radius:2px;
  color:var(--dust);cursor:pointer;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  transition:border-color .16s var(--ease),color .16s var(--ease),background-color .16s var(--ease);
}
.copy-btn:hover{border-color:var(--sand);color:var(--sand-lit);background:rgba(214,166,74,.12)}
.copy-btn[data-copy-state="done"]{border-color:var(--cyan);color:var(--cyan);background:rgba(95,227,192,.12)}
.copy-btn-label{pointer-events:none}

.footer-note{
  margin:0;padding-left:14px;
  border-left:2px solid var(--dune);
  font-size:13px;line-height:1.85;color:var(--dust);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 24px;
  padding-block:20px 30px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--dust);
}
.footer-meta{margin:0}
.footer-icp{margin:0;color:var(--sand);letter-spacing:.14em}

/* ---------- sections ---------- */
.section{position:relative;padding-block:clamp(44px,7vw,96px)}
.section--ink{
  background-color:var(--ink);
  border-block:1px solid var(--line);
}
.section-head{display:grid;gap:14px;max-width:72ch;margin-bottom:clamp(22px,4vw,44px)}
.section-num{
  display:flex;align-items:center;gap:12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--sand);
}
.section-num::after{content:"";height:1px;flex:1;background:linear-gradient(90deg,var(--line),transparent)}
.section-title{font-size:clamp(28px,4vw,44px);line-height:1.05;margin:0}
.section-lede{margin:0;max-width:62ch;font-size:16px;line-height:1.85;color:var(--dust)}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--dust);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs li{display:inline-flex;align-items:center}
.breadcrumbs li + li::before{content:"/";margin-right:8px;color:var(--dune)}
.breadcrumbs a{color:var(--dust);text-decoration:none;transition:color .16s var(--ease)}
.breadcrumbs a:hover{color:var(--sand-lit)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------- grid ---------- */
.grid{display:grid;gap:clamp(18px,2.6vw,30px)}
.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))}
.grid--split{grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);align-items:start}

/* ---------- card / tags ---------- */
.card{
  position:relative;
  padding:clamp(18px,2.4vw,26px);
  background:var(--ink);
  border:2px solid var(--line);border-radius:2px;
  box-shadow:var(--hard);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{border-color:var(--sand);transform:translate(-2px,-2px);box-shadow:8px 8px 0 rgba(0,0,0,.55)}
.card--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%)}
.card-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px}
.card-title{margin:0;font-size:clamp(20px,2.2vw,26px);line-height:1.15}
.card-text{margin:10px 0 0;font-size:15px;line-height:1.8;color:rgba(246,240,228,.82)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 9px;
  border:1px solid var(--line);border-radius:2px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--dust);
}
.tag--sand{border-color:var(--sand);color:var(--sand-lit);background:rgba(214,166,74,.12)}
.tag--red{border-color:var(--red);color:#ffd9d1;background:rgba(217,67,47,.18)}
.tag--cyan{border-color:var(--cyan);color:var(--cyan);background:rgba(95,227,192,.10)}

/* ---------- media frames ---------- */
.media{
  position:relative;display:block;overflow:hidden;
  border:2px solid var(--line);border-radius:2px;
  background:linear-gradient(150deg,var(--ink-2),var(--night) 72%);
  isolation:isolate;
}
.media > img,.media > picture > img{
  display:block;width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.94) contrast(1.06);
}
.media::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(rgba(20,18,16,.6) 1px,transparent 1.1px);
  background-size:4px 4px;opacity:.28;mix-blend-mode:multiply;
}
.media--wide{aspect-ratio:16/9}
.media--portrait{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 24px),calc(100% - 24px) 100%,0 100%)}
.media-caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:8px 12px;
  background:rgba(20,18,16,.84);
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--sand-lit);
}

/* ---------- reveal (JS protocol) ---------- */
.is-armed{
  opacity:0;transform:translateY(16px);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
.is-armed.is-revealed{opacity:1;transform:none;will-change:auto}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .league-chip--bar{display:none}
}

@media (max-width:1040px){
  .site-nav{
    position:absolute;top:100%;left:0;right:0;flex:none;
    visibility:hidden;opacity:0;transform:translateY(-10px);pointer-events:none;
    max-height:calc(100vh - 68px);overflow-y:auto;
    padding:12px var(--gutter) 22px;
    background-color:var(--ink);
    background-image:linear-gradient(180deg,rgba(30,90,77,.62),rgba(15,59,50,0));
    border-top:2px solid var(--sand);
    border-bottom:2px solid var(--sand);
    box-shadow:0 24px 44px rgba(0,0,0,.55);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  .site-header[data-nav-open="true"] .site-nav{
    visibility:visible;opacity:1;transform:none;pointer-events:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    display:flex;justify-content:flex-start;gap:12px;
    padding:15px 4px;
    border:0;border-bottom:1px solid var(--line-2);border-radius:0;
    font-family:var(--font-display);font-size:22px;font-weight:400;letter-spacing:.06em;
  }
  .nav-link::before{font-size:11px;color:var(--dune);width:24px;transform:none}
  .nav-link:hover{background:rgba(214,166,74,.08);transform:none}
  .nav-link[aria-current="page"]{
    box-shadow:none;padding-left:12px;
    border-left:2px solid var(--sand);
    background:rgba(214,166,74,.10);
  }
  .nav-filter{display:block;padding:0 0 14px}
  .nav-filter .league-chip{width:100%;justify-content:space-between;padding:12px 14px}
  .nav-toggle{display:inline-flex}
  .header-shell{gap:12px}
}

@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-mid{grid-template-columns:1fr}
}

@media (max-width:600px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr 1fr}
  .footer-bottom{justify-content:flex-start}
}

@media (max-width:560px){
  .header-shell{min-height:60px;padding-block:9px;gap:10px}
  .brand-mark{width:38px;height:38px;font-size:19px}
  .brand-word{font-size:17px;letter-spacing:.1em}
  .brand-ver{font-size:9px;letter-spacing:.12em}
  .header-tools .btn-primary{padding:9px 11px;font-size:12px;letter-spacing:.03em}
  .site-nav{max-height:calc(100vh - 60px)}
  .contact-key{min-width:auto;width:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .is-armed{opacity:1 !important;transform:none !important}
  .site-nav{transition:none !important}
  .scroll-progress{transition:none !important}
}