/* ==========================================================================
   NG赛场 — 共享外壳样式 /assets/site.css
   夜场计分屏 · 近单色深墨绿体系 · Bento 信息板
   ========================================================================== */

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

:root{
  --ng-night:#0B2A22;
  --ng-night-2:#123D32;
  --ng-night-3:#06140F;
  --ng-cyan:#17E0C8;
  --ng-lime:#D7FF3F;
  --ng-white:#F5F3E8;
  --ng-coal:#202323;
  --ng-mist:#8CCFC2;
  --ng-copper:#2A6B5B;
  --ng-red:#FF5A5F;

  --ng-radius-lg:28px;
  --ng-radius-md:18px;
  --ng-radius-sm:12px;
  --ng-pill:999px;

  --ng-max:1240px;
  --ng-gutter:clamp(16px,4.2vw,44px);
  --ng-progress:0%;

  --ng-sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --ng-narrow:"Helvetica Neue Condensed","Arial Narrow","PingFang SC",system-ui,sans-serif;
  --ng-mono:ui-monospace,"SFMono-Regular","Cascadia Mono",Menlo,Consolas,"Courier New",monospace;
  --ng-serif:"Songti SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
}

/* ---------- 基础排版（中文） ---------- */
body{
  background:
    radial-gradient(120% 80% at 85% -10%,rgba(23,224,200,.10),transparent 60%),
    radial-gradient(90% 60% at 0% 0%,rgba(42,107,91,.22),transparent 55%),
    var(--ng-night);
  color:var(--ng-white);
  font-family:var(--ng-sans);
  font-size:16px;
  line-height:1.72;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--ng-narrow);font-weight:800;letter-spacing:-.015em;line-height:1.14;text-wrap:balance}
h1{font-size:clamp(2rem,6vw,3.6rem)}
h2{font-size:clamp(1.5rem,3.6vw,2.3rem)}
h3{font-size:clamp(1.12rem,2.2vw,1.4rem)}
p{text-wrap:pretty}
strong{color:var(--ng-white);font-weight:700}
::selection{background:var(--ng-lime);color:var(--ng-night-3)}

:focus-visible{outline:2px solid var(--ng-lime);outline-offset:3px;border-radius:8px}
[data-section]{scroll-margin-top:104px}

/* ---------- 跳转链接 ---------- */
.ng-skip{
  position:fixed;left:14px;top:-70px;z-index:120;
  background:var(--ng-lime);color:var(--ng-night-3);
  font-weight:800;font-size:.86rem;padding:10px 18px;border-radius:var(--ng-pill);
  transition:top .2s ease;
}
.ng-skip:focus{top:14px}

/* ---------- 布局容器 ---------- */
.ng-shell{width:min(100% - var(--ng-gutter)*2,var(--ng-max));margin-inline:auto}
.ng-section{padding-block:clamp(44px,7vw,104px)}
.ng-section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:clamp(12px,2vw,28px);
  padding-top:18px;margin-bottom:clamp(20px,3vw,38px);
  border-top:1px solid rgba(42,107,91,.55);
}

/* ---------- 头部 ---------- */
.ng-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,42,34,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(42,107,91,.6);
  color:var(--ng-white);
}
.ng-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:3px;
  background:var(--ng-night-3);overflow:hidden;
}
.ng-progress__bar{
  display:block;height:100%;width:var(--ng-progress,0%);
  background:linear-gradient(90deg,var(--ng-cyan),var(--ng-lime));
  transition:width .09s linear;
}
.ng-header__inner{
  width:min(100% - var(--ng-gutter)*2,var(--ng-max));
  margin-inline:auto;padding-block:10px;
  min-height:68px;position:relative;
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(10px,2vw,30px);
}
.ng-header__lead{display:flex;align-items:center;gap:clamp(10px,1.6vw,18px);min-width:0}
.ng-header__trail{display:flex;align-items:center;gap:clamp(8px,1.6vw,20px);min-width:0}
.ng-header__actions{display:flex;align-items:center;gap:10px}

/* 品牌 */
.ng-brand{display:inline-flex;align-items:center;gap:10px;color:var(--ng-white);min-width:0}
.ng-brand__mark{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:9px;
  background:linear-gradient(140deg,var(--ng-cyan),var(--ng-lime));
  box-shadow:0 0 0 1px rgba(245,243,232,.22),0 12px 22px -14px rgba(23,224,200,.9);
}
.ng-brand__mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;background:var(--ng-night-3);
}
.ng-brand__text{display:block;min-width:0}
.ng-brand__name{display:block;font-family:var(--ng-narrow);font-size:1.06rem;font-weight:800;letter-spacing:.02em;line-height:1.1}
.ng-brand__sub{display:block;font-family:var(--ng-mono);font-size:.6rem;letter-spacing:.2em;color:var(--ng-mist);line-height:1.4}
.ng-brand--footer .ng-brand__name{font-size:1.24rem}
.ng-brand--footer .ng-brand__mark{width:30px;height:30px;border-radius:10px}

/* 状态灯 */
.ng-status{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--ng-mono);font-size:.68rem;letter-spacing:.14em;
  color:var(--ng-mist);background:rgba(6,20,15,.5);
  border:1px solid rgba(42,107,91,.75);border-radius:var(--ng-pill);
  padding:5px 12px;white-space:nowrap;
}
.ng-status__dot{
  width:7px;height:7px;border-radius:50%;background:var(--ng-lime);
  box-shadow:0 0 0 4px rgba(215,255,63,.16);
}

/* 导航 */
.ng-nav__list{display:flex;align-items:center;gap:2px}
.ng-nav__item{flex:0 0 auto}
.ng-nav__link{
  display:inline-block;padding:8px 13px;border-radius:var(--ng-pill);
  font-size:.9rem;color:var(--ng-mist);
  transition:color .18s ease,background .18s ease,box-shadow .18s ease;
}
.ng-nav__link:hover{color:var(--ng-white);background:rgba(23,224,200,.12)}
.ng-nav__link[aria-current="page"]{
  color:var(--ng-lime);background:rgba(215,255,63,.08);
  box-shadow:inset 0 0 0 1px rgba(215,255,63,.45);
}

/* 通用按钮 */
.ng-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.86rem;font-weight:800;letter-spacing:.02em;
  border-radius:var(--ng-pill);padding:10px 18px;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;
}
.ng-cta--pill{
  background:var(--ng-lime);color:var(--ng-night-3);
  box-shadow:0 14px 28px -18px rgba(215,255,63,.95);
}
.ng-cta--pill:hover{background:#e8ff74;transform:translateY(-1px)}
.ng-cta--ghost{
  color:var(--ng-cyan);background:rgba(6,20,15,.45);
  box-shadow:inset 0 0 0 1px rgba(23,224,200,.6);
}
.ng-cta--ghost:hover{background:rgba(23,224,200,.14);transform:translateY(-1px)}
.ng-cta--block{width:100%}

/* 汉堡按钮 */
.ng-nav-toggle{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 14px;border-radius:var(--ng-pill);
  color:var(--ng-white);background:rgba(18,61,50,.9);
  box-shadow:inset 0 0 0 1px rgba(42,107,91,.9);
}
.ng-nav-toggle__bars{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:currentColor;transition:background .2s ease}
.ng-nav-toggle__bars::before,
.ng-nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor;
  transition:transform .2s ease,top .2s ease;
}
.ng-nav-toggle__bars::before{top:-6px}
.ng-nav-toggle__bars::after{top:6px}
.ng-nav-toggle__label{font-family:var(--ng-mono);font-size:.72rem;letter-spacing:.14em}
.ng-nav-toggle[aria-expanded="true"] .ng-nav-toggle__bars{background:transparent}
.ng-nav-toggle[aria-expanded="true"] .ng-nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.ng-nav-toggle[aria-expanded="true"] .ng-nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

/* ---------- 页脚 ---------- */
.ng-footer{
  margin-top:clamp(48px,7vw,104px);
  background:
    radial-gradient(90% 120% at 0% 0%,rgba(42,107,91,.35),transparent 60%),
    var(--ng-night-3);
  color:var(--ng-white);
  border-top:1px solid rgba(42,107,91,.65);
}
.ng-footer__inner{
  width:min(100% - var(--ng-gutter)*2,var(--ng-max));
  margin-inline:auto;padding-block:clamp(34px,5vw,64px);
  display:grid;gap:clamp(26px,4vw,56px);
  grid-template-columns:1fr;
}
.ng-footer__brand{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.ng-footer__tagline{font-size:1.02rem;color:rgba(245,243,232,.9);max-width:32ch}
.ng-footer__meta{
  font-family:var(--ng-mono);font-size:.72rem;letter-spacing:.12em;
  color:var(--ng-mist);
  border:1px solid rgba(42,107,91,.7);border-radius:var(--ng-pill);padding:6px 13px;
}
.ng-footer__nav{display:grid;gap:clamp(20px,3vw,40px);grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.ng-footer__col{display:flex;flex-direction:column}
.ng-footer__title{
  font-family:var(--ng-mono);font-size:.7rem;font-weight:700;letter-spacing:.22em;
  text-transform:uppercase;color:var(--ng-cyan);margin-bottom:14px;
}
.ng-footer__list{display:grid;gap:9px}
.ng-footer__link{display:inline-block;font-size:.92rem;color:rgba(245,243,232,.78);transition:color .18s ease,transform .18s ease}
.ng-footer__link:hover{color:var(--ng-lime);transform:translateX(2px)}
.ng-footer__contact{display:flex;flex-direction:column}
.ng-contact{display:grid;gap:12px}
.ng-contact__row{display:grid;gap:3px;padding-bottom:11px;border-bottom:1px dashed rgba(42,107,91,.6)}
.ng-contact__row:last-child{border-bottom:0;padding-bottom:0}
.ng-contact__row dt{font-family:var(--ng-mono);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ng-mist)}
.ng-contact__row dd{font-size:.92rem;color:var(--ng-white);overflow-wrap:anywhere}
.ng-footer__base{
  border-top:1px solid rgba(42,107,91,.5);
  background:rgba(6,20,15,.6);
}
.ng-footer__base>*{width:min(100% - var(--ng-gutter)*2,var(--ng-max));margin-inline:auto}
.ng-footer__base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 22px;
  width:100%;
  padding:16px var(--ng-gutter) 22px;
}
.ng-footer__legal,
.ng-footer__year{font-family:var(--ng-mono);font-size:.72rem;letter-spacing:.08em;color:var(--ng-mist)}
.ng-footer__year{color:rgba(245,243,232,.72)}
.ng-footer__note{font-size:.78rem;color:rgba(245,243,232,.62)}

/* ---------- 通用内容组件 ---------- */
.ng-bento{display:grid;gap:clamp(12px,1.6vw,20px);grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.ng-span-3,.ng-span-4,.ng-span-5,.ng-span-6,.ng-span-8,.ng-span-12{grid-column:1 / -1}

.ng-card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  background:var(--ng-night-2);
  border:1px solid rgba(42,107,91,.6);
  border-radius:var(--ng-radius-lg);
  padding:clamp(18px,2.4vw,28px);
  padding-bottom:clamp(40px,4vw,52px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.ng-card:hover{transform:translateY(-3px);border-color:rgba(23,224,200,.75);box-shadow:0 30px 54px -36px rgba(23,224,200,.85)}
.ng-card--focus{
  border-color:var(--ng-lime);
  box-shadow:0 0 0 1px rgba(215,255,63,.35),0 34px 64px -44px rgba(215,255,63,.7);
}
.ng-card__badge{
  position:absolute;right:clamp(12px,1.6vw,18px);bottom:clamp(12px,1.6vw,18px);
  font-family:var(--ng-mono);font-size:.7rem;letter-spacing:.08em;
  background:var(--ng-lime);color:var(--ng-night-3);
  border-radius:var(--ng-pill);padding:4px 11px;
}
.ng-card__hint{
  position:absolute;right:clamp(12px,1.6vw,18px);
  bottom:calc(clamp(12px,1.6vw,18px) + 34px);
  max-width:min(260px,82%);
  background:var(--ng-night-3);border:1px solid var(--ng-copper);
  border-radius:14px;padding:9px 12px;
  font-size:.76rem;line-height:1.5;color:var(--ng-mist);
  opacity:0;transform:translateY(6px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
}
.ng-card:hover .ng-card__hint,
.ng-card:focus-within .ng-card__hint{opacity:1;transform:translateY(0)}

.ng-chapter{
  display:block;font-family:var(--ng-serif);font-style:italic;
  font-size:clamp(2.4rem,7vw,4rem);line-height:.9;
  color:rgba(140,207,194,.55);letter-spacing:-.02em;
}
.ng-num{font-family:var(--ng-mono);font-variant-numeric:tabular-nums;letter-spacing:0;color:var(--ng-lime)}

.ng-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--ng-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ng-cyan);background:rgba(23,224,200,.09);
  border:1px solid rgba(23,224,200,.45);border-radius:var(--ng-pill);
  padding:4px 11px;
}
.ng-tag--lime{color:var(--ng-lime);border-color:rgba(215,255,63,.5);background:rgba(215,255,63,.09)}
.ng-tag--alert{color:var(--ng-red);border-color:rgba(255,90,95,.5);background:rgba(255,90,95,.1)}

.ng-copy{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--ng-mono);font-size:.76rem;letter-spacing:.06em;
  color:var(--ng-cyan);background:rgba(6,20,15,.55);
  border:1px dashed rgba(23,224,200,.6);border-radius:var(--ng-pill);
  padding:8px 15px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.ng-copy:hover{background:rgba(23,224,200,.14)}
.ng-copy.is-copied{background:var(--ng-lime);color:var(--ng-night-3);border-style:solid;border-color:var(--ng-lime)}

.ng-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--ng-mono);font-size:.72rem;letter-spacing:.1em;color:var(--ng-mist);
}
.ng-breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.ng-breadcrumb__item + .ng-breadcrumb__item::before{content:"/";color:var(--ng-copper)}
.ng-breadcrumb__item a:hover{color:var(--ng-cyan)}
.ng-breadcrumb__item [aria-current="page"]{color:var(--ng-white)}

.ng-toc{display:flex;flex-wrap:wrap;gap:8px}
.ng-toc__link{
  font-family:var(--ng-mono);font-size:.74rem;letter-spacing:.06em;
  color:var(--ng-mist);border:1px solid rgba(42,107,91,.75);
  border-radius:var(--ng-pill);padding:6px 13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.ng-toc__link:hover{color:var(--ng-white);border-color:var(--ng-cyan)}
.ng-toc__link.is-active{color:var(--ng-night-3);background:var(--ng-cyan);border-color:var(--ng-cyan)}

/* ---------- 图片容器基础规则 ---------- */
.ng-media{
  position:relative;display:block;overflow:hidden;isolation:isolate;
  border-radius:var(--ng-radius-lg);
  aspect-ratio:16 / 10;
  background:linear-gradient(150deg,var(--ng-night-2),var(--ng-night-3) 62%,#0f3a2f);
  box-shadow:inset 0 0 0 1px rgba(42,107,91,.55),0 26px 50px -38px rgba(0,0,0,.9);
}
.ng-media img,.ng-media video{width:100%;height:100%;object-fit:cover}
.ng-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:2;
  background-image:repeating-linear-gradient(0deg,rgba(6,20,15,.32) 0 1px,transparent 1px 3px);
  opacity:.75;
}
.ng-media--wide{aspect-ratio:21 / 9}
.ng-media--tall{aspect-ratio:3 / 4}
.ng-media--square{aspect-ratio:1 / 1}
.ng-media__caption{
  position:absolute;left:clamp(12px,1.8vw,20px);bottom:clamp(12px,1.8vw,20px);z-index:3;
  font-family:var(--ng-mono);font-size:.7rem;letter-spacing:.1em;
  color:var(--ng-white);background:rgba(6,20,15,.72);
  border:1px solid rgba(42,107,91,.8);border-radius:var(--ng-pill);
  padding:5px 12px;max-width:calc(100% - 40px);
}

/* ---------- 显现动效 ---------- */
.ng-reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease,transform .45s ease}
.ng-reveal.is-in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (max-width:899px){
  .ng-header__inner{flex-wrap:nowrap}
  .ng-nav{
    position:absolute;left:0;right:0;top:100%;display:none;
    background:var(--ng-night-2);
    border-top:1px solid rgba(42,107,91,.7);
    border-bottom:1px solid rgba(42,107,91,.7);
    padding:10px var(--ng-gutter) 20px;
    box-shadow:0 30px 48px -28px rgba(0,0,0,.85);
    max-height:calc(100vh - 100px);overflow-y:auto;
  }
  .ng-nav[data-open]{display:block}
  .ng-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .ng-nav__link{display:block;font-size:.96rem;padding:12px 14px;border-radius:14px}
}
@media (min-width:900px){
  .ng-nav-toggle{display:none}
  .ng-footer__inner{grid-template-columns:1.1fr 1.5fr}
}
@media (min-width:1040px){
  .ng-footer__inner{grid-template-columns:1.15fr 1.5fr 1fr}
  .ng-bento{grid-template-columns:repeat(12,1fr)}
  .ng-span-3{grid-column:span 3}
  .ng-span-4{grid-column:span 4}
  .ng-span-5{grid-column:span 5}
  .ng-span-6{grid-column:span 6}
  .ng-span-8{grid-column:span 8}
  .ng-span-12{grid-column:span 12}
}
@media (max-width:640px){
  .ng-status{display:none}
  .ng-cta--pill{padding:9px 14px;font-size:.8rem}
  .ng-nav-toggle{padding:9px 12px}
  .ng-nav-toggle__label{display:none}
  .ng-brand__sub{display:none}
  .ng-footer__base{padding-inline:var(--ng-gutter)}
}
@media (max-width:400px){
  .ng-brand__name{font-size:.98rem}
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .ng-reveal{opacity:1;transform:none}
  .ng-card:hover{transform:none}
  .ng-footer__link:hover{transform:none}
}