/* ============================================================
   NG体育 · 共享 Site Kit  /assets/site.css
   主题：深夜战术室 × 赛场数据流（电子战术板）
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
hr{border:0;margin:0}

/* ---------- 2. Tokens ---------- */
:root{
  --c-base:#06101F;
  --c-panel:#0D1B2E;
  --c-panel-2:#14263D;
  --c-line:#27415F;
  --c-cyan:#35F0D0;
  --c-orange:#FF8A3D;
  --c-blue:#3D7BFF;
  --c-amber:#FFC857;
  --c-text:#E8F2FF;
  --c-muted:#A9BCD0;
  --font-display:"Arial Narrow","Helvetica Neue",Impact,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --fs-body:16.5px;
  --shell:min(1320px,100% - 2.5rem);
  --gap:clamp(1rem,2vw,1.75rem);
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- 3. Base ---------- */
body{
  min-height:100vh;
  overflow-x:clip;
  background:
    radial-gradient(1150px 620px at 82% -6%, rgba(61,123,255,.17), transparent 62%),
    radial-gradient(900px 520px at 4% 4%, rgba(53,240,208,.09), transparent 58%),
    var(--c-base);
  color:var(--c-text);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.82;
  letter-spacing:.01em;
}
h1,h2,h3,h4,h5,h6,.display{
  font-family:var(--font-display);
  font-weight:700;
  text-transform:uppercase;
  line-height:1.08;
  letter-spacing:.005em;
  color:var(--c-text);
}
h1{font-size:clamp(2.45rem,5.8vw,4.4rem);letter-spacing:-.005em}
h2{font-size:clamp(1.7rem,3.3vw,2.35rem)}
h3{font-size:clamp(1.15rem,2vw,1.5rem)}
p{margin:0 0 1rem}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
strong{color:#fff}
::selection{background:rgba(53,240,208,.28);color:#fff}

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

@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

/* ---------- 4. Layout ---------- */
.container{width:var(--shell);margin-inline:auto}
.section{padding-block:clamp(2.5rem,6vw,5.25rem)}
.grid{display:grid;gap:var(--gap)}
.grid--2,.grid--3,.grid--split,.grid--sidebar{grid-template-columns:1fr}
@media (min-width:820px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (min-width:1024px){
  .grid--split{grid-template-columns:5fr 7fr}
  .grid--sidebar{grid-template-columns:4fr 8fr}
}

/* ---------- 5. Editorial components ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--c-cyan);
}
.kicker::before{content:"";width:22px;height:1px;background:var(--c-cyan)}
.index-number{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.16em;color:var(--c-orange)}
.lede{font-size:clamp(1rem,1.4vw,1.08rem);line-height:1.75;color:var(--c-muted);max-width:64ch}
.meta{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.08em;color:var(--c-muted)}
.rule{height:1px;background:linear-gradient(90deg,var(--c-line),rgba(39,65,95,0))}
.link{color:var(--c-cyan);border-bottom:1px solid rgba(53,240,208,.42);padding-bottom:1px}
.link:hover{color:#fff;border-bottom-color:#fff}

.panel{
  position:relative;
  background:linear-gradient(160deg,var(--c-panel),#0A1728 78%);
  border:1px solid var(--c-line);
  padding:clamp(1.1rem,2.2vw,1.75rem);
}
.panel--tint{background:linear-gradient(150deg,#11253C,#0A1728 82%)}
.panel--stack{box-shadow:10px 10px 0 -1px rgba(39,65,95,.42)}
.panel__head{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  border-bottom:1px solid var(--c-line);
  padding-bottom:.7rem;margin-bottom:1rem;
}

.tag{
  display:inline-flex;align-items:center;
  padding:.2rem .5rem;border:1px solid var(--c-line);
  background:rgba(255,200,87,.08);color:var(--c-amber);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
}
.tag--cyan{color:var(--c-cyan);background:rgba(53,240,208,.09)}
.tag--orange{color:var(--c-orange);background:rgba(255,138,61,.1)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.72rem 1.15rem;
  border:1px solid var(--c-line);background:var(--c-panel-2);color:var(--c-text);
  font-family:var(--font-mono);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{background:#17293f;border-color:var(--c-cyan);color:#fff;transform:translateY(-1px)}
.btn--accent{
  background:linear-gradient(100deg,var(--c-cyan),#1FD2B6);
  border-color:transparent;color:#03201C;font-weight:700;
}
.btn--accent:hover{background:linear-gradient(100deg,#5CF6DE,var(--c-cyan));color:#03201C;box-shadow:0 12px 26px -16px rgba(53,240,208,.9)}
.btn--ghost{background:transparent;color:var(--c-muted)}
.btn--ghost:hover{color:var(--c-text)}
.btn--sm{padding:.46rem .78rem;font-size:.72rem;letter-spacing:.08em}

.breadcrumb{display:flex;flex-wrap:wrap;gap:.5rem;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-cyan)}
.breadcrumb__sep{color:var(--c-line)}

/* 图片容器：页面阶段放入 img / picture */
.media-frame{
  position:relative;display:block;width:100%;aspect-ratio:16/9;overflow:hidden;
  background:
    linear-gradient(135deg,rgba(61,123,255,.16),rgba(6,16,31,0) 62%),
    var(--c-panel-2);
  border:1px solid var(--c-line);
}
.media-frame>img,.media-frame>picture>img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.8) contrast(1.06) brightness(.9);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(6,16,31,0) 42%,rgba(6,16,31,.74)),
    repeating-linear-gradient(0deg,rgba(53,240,208,.05) 0 1px,transparent 1px 6px);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__tag{position:absolute;left:.75rem;top:.75rem;z-index:2}
.media-frame__caption{position:absolute;left:.9rem;right:.9rem;bottom:.85rem;z-index:2;font-size:.86rem;line-height:1.55;color:var(--c-text)}

/* ---------- 6. Header（框架式导航） ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:.7rem 1rem;background:var(--c-cyan);color:#04131F;
  font-family:var(--font-mono);font-size:.8rem;font-weight:700;letter-spacing:.06em;
}
.skip-link:focus{left:0}

.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,#071322 0%,#06101F 100%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 22px 44px -34px rgba(0,0,0,.95);
}
.header-scan{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:1}
.header-scan::after{
  content:"";position:absolute;top:0;bottom:0;left:-40%;width:40%;
  background:linear-gradient(90deg,rgba(53,240,208,0),rgba(53,240,208,.1),rgba(53,240,208,0));
  animation:ng-scan 7s linear infinite;
}
@keyframes ng-scan{from{transform:translateX(0)}to{transform:translateX(350%)}}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:120;
  background:rgba(39,65,95,.55);pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-blue) 55%,var(--c-orange));
  box-shadow:0 0 12px rgba(53,240,208,.75);
  transition:transform .1s linear;
}

.header-inner{
  position:relative;z-index:2;
  width:var(--shell);margin-inline:auto;
  display:flex;align-items:center;gap:clamp(.7rem,1.8vw,1.5rem);
  padding:.9rem 0;
}

.brand{display:inline-flex;align-items:center;gap:.7rem;flex:0 0 auto}
.brand:hover{color:var(--c-text)}
.brand__mark{
  display:grid;place-items:center;width:2.4rem;height:2.4rem;
  background:linear-gradient(140deg,var(--c-cyan),var(--c-blue));
  color:#04121F;font-family:var(--font-display);font-weight:700;font-size:1.05rem;
  letter-spacing:-.04em;line-height:1;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:grid;line-height:1.16}
.brand__name{font-family:var(--font-display);font-size:1.12rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase}
.brand__edition{font-family:var(--font-mono);font-size:.63rem;letter-spacing:.18em;text-transform:uppercase;color:var(--c-muted)}

.status-chip{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.28rem .6rem;border:1px solid var(--c-line);background:rgba(20,38,61,.7);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-muted);white-space:nowrap;
}
.status-chip__dot{width:6px;height:6px;border-radius:50%;background:var(--c-cyan);box-shadow:0 0 8px var(--c-cyan);animation:ng-pulse 2.6s ease-in-out infinite}
@keyframes ng-pulse{50%{opacity:.3}}

.header-utility{margin-left:auto;display:flex;align-items:center;gap:clamp(.6rem,1.4vw,1.15rem)}
.utility-link{
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--c-muted);padding-bottom:2px;border-bottom:1px solid transparent;
}
.utility-link:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;margin-left:auto;
  padding:.5rem .72rem;border:1px solid var(--c-line);background:rgba(20,38,61,.6);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--c-muted);
}
.nav-toggle:hover{border-color:var(--c-cyan);color:var(--c-text)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars span{display:block;height:2px;background:var(--c-cyan);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) 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(-5px) rotate(-45deg)}

.site-nav{
  position:relative;z-index:2;
  border-top:1px solid var(--c-line);
  background:linear-gradient(90deg,rgba(13,27,46,.96),rgba(6,16,31,.96));
}
.nav-list{width:var(--shell);margin-inline:auto;display:flex;flex-wrap:wrap}
.nav-item{display:flex;min-width:0}
.nav-link{
  position:relative;display:flex;align-items:baseline;gap:.5rem;
  padding:.82rem clamp(.7rem,1.6vw,1.15rem);
  border-right:1px solid rgba(39,65,95,.65);
  font-family:var(--font-display);font-size:.98rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;color:var(--c-muted);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--c-text);background:var(--c-panel-2)}
.nav-link[aria-current="page"]{color:var(--c-cyan)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--c-cyan);box-shadow:0 0 12px rgba(53,240,208,.85);
}
.nav-index{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;color:var(--c-orange)}
.nav-link:hover .nav-index{color:var(--c-amber)}
.nav-label{white-space:nowrap}
.nav-utility{display:none}

.frame-rail{display:none}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .header-utility{display:none}
  .status-chip{display:none}
  .site-nav{max-height:0;overflow:hidden;border-top-color:transparent;transition:max-height .26s var(--ease),border-color .26s var(--ease)}
  .site-header[data-open="true"] .site-nav{max-height:min(78vh,640px);overflow-y:auto;border-top-color:var(--c-line)}
  .nav-list{flex-direction:column;padding:.3rem 0 .5rem}
  .nav-link{
    border-right:0;border-bottom:1px solid rgba(39,65,95,.5);
    padding:.85rem .3rem .85rem 1.1rem;font-size:1.05rem;
  }
  .nav-link[aria-current="page"]::after{
    left:0;right:auto;top:50%;bottom:auto;width:3px;height:58%;transform:translateY(-50%);
  }
  .nav-utility{
    display:flex;flex-wrap:wrap;gap:.55rem;
    width:var(--shell);margin-inline:auto;padding:.4rem 0 1.3rem;
  }
  .nav-utility .btn{flex:1 1 9rem}
}

@media (min-width:1280px){
  body{padding-left:46px}
  .frame-rail{
    position:fixed;top:0;left:0;bottom:0;width:46px;z-index:70;
    display:flex;align-items:center;justify-content:center;
    border-right:1px solid var(--c-line);
    background:linear-gradient(180deg,#06101F,#0A1728);
  }
  .frame-rail__text{
    writing-mode:vertical-rl;
    font-family:var(--font-mono);font-size:.64rem;letter-spacing:.36em;
    text-transform:uppercase;color:#436punk;
    color:#41648A;
  }
}

/* ---------- 7. Footer（纸张叠层） ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3.5rem,7vw,7rem);
  padding:clamp(2.25rem,4vw,3.5rem) 0 1.6rem;
  background:linear-gradient(180deg,rgba(13,27,46,0),rgba(13,27,46,.6));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:5px;opacity:.7;
  background-image:repeating-linear-gradient(90deg,var(--c-line) 0 1px,transparent 1px 26px);
}
.site-footer::after{
  content:"";position:absolute;top:5px;left:0;width:clamp(120px,22vw,320px);height:1px;
  background:linear-gradient(90deg,var(--c-cyan),rgba(53,240,208,0));
}

.footer-frame{
  position:relative;overflow:hidden;
  background:linear-gradient(165deg,var(--c-panel),#0A1728 82%);
  border:1px solid var(--c-line);
  padding:clamp(1.4rem,3vw,2.6rem);
  box-shadow:12px 12px 0 -1px rgba(39,65,95,.4);
}
.footer-mark{
  position:absolute;right:1.1rem;top:.4rem;z-index:0;pointer-events:none;
  font-family:var(--font-display);font-weight:700;line-height:1;
  font-size:clamp(3.6rem,9vw,7rem);letter-spacing:.02em;
  color:rgba(61,123,255,.09);text-transform:uppercase;
}
.footer-grid{
  position:relative;z-index:1;
  display:grid;gap:clamp(1.5rem,3vw,2.5rem);
  grid-template-columns:1fr;
}
@media (min-width:760px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1080px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr}
}

.footer-brand{display:grid;gap:1rem;align-content:start}
.brand--footer .brand__name{font-size:1.28rem}
.footer-tagline{margin:0;max-width:30ch;font-size:.92rem;line-height:1.7;color:var(--c-muted)}
.footer-actions{display:flex;flex-wrap:wrap;gap:.6rem}

.footer-col__title{
  display:flex;align-items:center;gap:.55rem;margin-bottom:.95rem;
  font-family:var(--font-mono);font-size:.72rem;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--c-amber);
}
.footer-col__title::before{content:"";width:14px;height:2px;background:var(--c-amber)}
.footer-links li+li{margin-top:.5rem}
.footer-links a{display:inline-flex;align-items:baseline;gap:.45rem;font-size:.94rem;color:var(--c-muted)}
.footer-links a::before{content:"—";font-family:var(--font-mono);font-size:.78rem;color:var(--c-line)}
.footer-links a:hover{color:var(--c-cyan)}
.footer-links a:hover::before{color:var(--c-orange)}

.contact-list{display:grid;gap:.75rem}
.contact-item{display:grid;gap:.18rem}
.contact-key{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--c-muted)}
.contact-value{font-size:.92rem;line-height:1.6;color:var(--c-text)}
.copy-btn{
  text-align:left;word-break:break-all;
  font-family:var(--font-mono);font-size:.8rem;letter-spacing:.03em;color:var(--c-text);
  border-bottom:1px dashed var(--c-line);padding-bottom:2px;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.copy-btn:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}
.copy-btn[data-copied="true"]{color:var(--c-orange);border-bottom-color:var(--c-orange)}
.footer-hours{margin-top:.9rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;color:var(--c-muted)}
.copy-status{margin-top:.5rem;min-height:1.2em;font-family:var(--font-mono);font-size:.72rem;color:var(--c-cyan)}

.footer-legal{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.9rem;
  margin-top:clamp(1.5rem,3vw,2.4rem);padding-top:1.1rem;
  border-top:1px solid var(--c-line);
}
.legal-links{display:flex;flex-wrap:wrap;gap:1.1rem}
.legal-links a{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;color:var(--c-muted)}
.legal-links a:hover{color:var(--c-cyan)}
.footer-copy{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--c-muted)}

/* ---------- 8. 动效协议 ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
html.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 9. 响应式收敛 ---------- */
@media (max-width:820px){
  :root{--shell:min(1320px,100% - 2rem)}
  h1{font-size:clamp(2.1rem,8vw,3rem)}
}
@media (max-width:640px){
  :root{--fs-body:16px;--shell:min(1320px,100% - 1.6rem)}
  .header-inner{padding:.7rem 0}
  .brand__mark{width:2.1rem;height:2.1rem;font-size:.95rem}
  .brand__name{font-size:1rem;letter-spacing:.1em}
  .brand__edition{font-size:.58rem}
  .footer-frame{padding:1.2rem;box-shadow:8px 8px 0 -1px rgba(39,65,95,.4)}
  .panel{padding:1.1rem}
  .btn{width:auto}
}

/* ---------- 10. 无障碍与降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .header-scan{display:none}
  html.js [data-reveal]{opacity:1;transform:none}
  .scroll-progress__bar{transition:none}
}
@media print{
  .site-header,.site-footer,.scroll-progress,.frame-rail{display:none}
}