/* ==========================================================================
   track-niubao.com.cn — 共享外壳样式 /assets/site.css
   夜场记分牌 × 展览画册：暗绿台面、矿物米白、等宽数字、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,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--nb-line);margin:0}

/* 2. Tokens ----------------------------------------------- */
:root{
  --nb-green-900:#0B2A24;
  --nb-green-700:#11453A;
  --nb-cream:#EDE9E1;
  --nb-rock:#C9C4B8;
  --nb-moss:#3E6B4F;
  --nb-red:#E2412F;
  --nb-red-700:#A8231A;
  --nb-yellow:#E8FF5A;
  --nb-blue:#5C7FA3;
  --nb-blue-200:#C6D5E2;
  --nb-card:#FBFAF7;
  --nb-black:#07120F;
  --nb-ink:#12211D;
  --nb-body:#3B4A44;
  --nb-muted:#5E6A64;
  --nb-line:rgba(11,42,36,.14);
  --nb-line-strong:rgba(11,42,36,.3);
  --nb-line-dark:rgba(201,196,184,.22);
  --nb-font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --nb-font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --nb-radius:3px;
  --nb-shadow:0 1px 0 rgba(11,42,36,.05),0 14px 30px -24px rgba(7,18,15,.62);
  --nb-max:1320px;
  --nb-gutter:clamp(16px,3.2vw,44px);
  --nb-head-h:66px;
}

/* 3. 中文排版与基底 --------------------------------------- */
body{
  background:var(--nb-cream);
  color:var(--nb-body);
  font-family:var(--nb-font-body);
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  opacity:.5;
  background-image:
    repeating-linear-gradient(0deg,rgba(11,42,36,.022) 0 1px,transparent 1px 3px),
    repeating-linear-gradient(90deg,rgba(11,42,36,.022) 0 1px,transparent 1px 3px);
}
h1,h2,h3,h4{color:var(--nb-ink)}
.nb-h1{font-size:clamp(30px,4.4vw,44px);font-weight:900;line-height:1.12;letter-spacing:-.01em;font-stretch:87.5%;text-wrap:balance}
.nb-h2{font-size:clamp(23px,2.9vw,30px);font-weight:900;line-height:1.16;letter-spacing:-.01em;font-stretch:87.5%;text-wrap:balance}
.nb-h3{font-size:20px;font-weight:800;line-height:1.3}
.nb-lead{font-size:17px;line-height:1.7;color:#33423C;max-width:60ch}
.nb-text{font-size:15px;line-height:1.68;color:var(--nb-body)}
.nb-muted{color:var(--nb-muted)}
.nb-num{
  font-family:var(--nb-font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1;
  color:var(--nb-ink);
}
.nb-num--lg{font-size:clamp(44px,7vw,72px)}
.nb-num--md{font-size:clamp(28px,3.6vw,44px)}
.nb-index{
  display:inline-block;
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--nb-blue);
  line-height:1.5;
}
.nb-eyebrow{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--nb-muted);
}
.nb-eyebrow::before{content:"";width:22px;height:2px;background:var(--nb-red);flex:none}
.nb-sr{position:absolute;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}

/* 焦点态：2px 荧光黄外发光，键盘可达优先 */
:focus-visible{
  outline:2px solid var(--nb-yellow);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(232,255,90,.22);
  border-radius:2px;
}

/* 4. 布局 ------------------------------------------------- */
.nb-container{
  width:100%;
  max-width:var(--nb-max);
  margin-inline:auto;
  padding-inline:var(--nb-gutter);
}
.nb-section{padding-block:clamp(48px,7vw,96px)}
.nb-section--tight{padding-block:clamp(32px,4.4vw,56px)}
.nb-section--deep{
  position:relative;
  background:var(--nb-green-900);
  color:var(--nb-cream);
  overflow:hidden;
}
.nb-section--deep::after{
  content:"";
  position:absolute;
  top:-140px;
  right:-90px;
  width:440px;
  height:440px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,255,90,.13),transparent 66%);
  pointer-events:none;
}
.nb-section--deep .nb-h1,
.nb-section--deep .nb-h2,
.nb-section--deep .nb-h3{color:var(--nb-cream)}
.nb-section--deep .nb-text,
.nb-section--deep .nb-lead,
.nb-section--deep .nb-muted{color:rgba(237,233,225,.78)}
.nb-section--deep .nb-index,
.nb-panel .nb-index,
.nb-card--deep .nb-index{color:var(--nb-yellow)}
.nb-section__head{
  display:grid;
  gap:10px;
  margin-bottom:clamp(20px,3vw,36px);
  padding-top:14px;
  border-top:1px solid var(--nb-line);
}
.nb-section--deep .nb-section__head{border-top-color:var(--nb-line-dark)}
.nb-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(14px,1.8vw,24px);
}
.nb-col-4{grid-column:span 4}
.nb-col-5{grid-column:span 5}
.nb-col-6{grid-column:span 6}
.nb-col-7{grid-column:span 7}
.nb-col-8{grid-column:span 8}
.nb-col-12{grid-column:span 12}

/* 5. 基础组件 --------------------------------------------- */
.nb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  border:1px solid transparent;
  border-radius:var(--nb-radius);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:background-color .15s ease,color .15s ease,border-color .15s ease,transform .15s ease;
}
.nb-btn:active{transform:translateY(1px)}
.nb-btn--cta{background:var(--nb-red);color:#fff;box-shadow:0 10px 20px -14px rgba(226,65,47,.95)}
.nb-btn--cta:hover{background:var(--nb-red-700)}
.nb-btn--ghost{border-color:var(--nb-line-strong);color:var(--nb-ink);background:transparent}
.nb-btn--ghost:hover{border-color:var(--nb-green-900);background:rgba(11,42,36,.05)}
.nb-btn--dark{border-color:var(--nb-line-dark);color:var(--nb-cream);background:transparent}
.nb-btn--dark:hover{background:var(--nb-yellow);border-color:var(--nb-yellow);color:var(--nb-black)}

.nb-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--nb-line);
  border-radius:999px;
  background:var(--nb-card);
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--nb-muted);
}
.nb-pill--live{border-color:rgba(226,65,47,.42);color:var(--nb-red);background:rgba(226,65,47,.06)}
.nb-pill--injury{border-color:rgba(92,127,163,.45);color:#33506B;background:var(--nb-blue-200)}
.nb-pill--form{border-color:rgba(62,107,79,.42);color:var(--nb-moss);background:rgba(62,107,79,.07)}

.nb-card{
  background:var(--nb-card);
  border:1px solid var(--nb-line);
  border-radius:var(--nb-radius);
  box-shadow:var(--nb-shadow);
  padding:clamp(16px,2vw,24px);
}
.nb-card__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  padding-bottom:10px;
  margin-bottom:14px;
  border-bottom:1px solid var(--nb-line);
}
.nb-card--deep{
  background:var(--nb-green-700);
  border-color:var(--nb-line-dark);
  color:var(--nb-cream);
  box-shadow:none;
}
.nb-card--deep .nb-card__head{border-bottom-color:var(--nb-line-dark)}
.nb-card--deep .nb-text,
.nb-card--deep .nb-muted{color:rgba(237,233,225,.76)}
.nb-panel{
  position:relative;
  overflow:hidden;
  background:var(--nb-green-900);
  border:1px solid var(--nb-line-dark);
  border-radius:var(--nb-radius);
  color:var(--nb-cream);
  padding:clamp(18px,2.4vw,28px);
}
.nb-panel::after{
  content:"";
  position:absolute;
  top:-60%;
  right:-12%;
  width:300px;
  height:300px;
  background:radial-gradient(circle,rgba(232,255,90,.14),transparent 68%);
  pointer-events:none;
}
.nb-panel .nb-text{color:rgba(237,233,225,.78)}

.nb-media{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--nb-line);
  border-radius:var(--nb-radius);
  background:linear-gradient(140deg,var(--nb-green-700),var(--nb-black));
}
.nb-media > img{width:100%;height:100%;object-fit:cover}
.nb-media--4x3{aspect-ratio:4 / 3}
.nb-media--1x1{aspect-ratio:1 / 1}
.nb-media--21x9{aspect-ratio:21 / 9}
.nb-media__ph{
  display:grid;
  place-items:center;
  height:100%;
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(237,233,225,.5);
}
.nb-media__tag{
  position:absolute;
  left:12px;
  bottom:12px;
  padding:3px 9px;
  background:rgba(7,18,15,.78);
  border:1px solid var(--nb-line-dark);
  border-radius:2px;
  font-family:var(--nb-font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--nb-yellow);
}

.nb-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-block:18px 0;
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--nb-muted);
}
.nb-breadcrumb a:hover{color:var(--nb-red)}
.nb-breadcrumb__sep{color:var(--nb-rock)}
.nb-breadcrumb [aria-current="page"]{color:var(--nb-ink)}

/* 可展开内容组 */
.nb-disclose{
  border:1px solid var(--nb-line);
  border-radius:var(--nb-radius);
  background:var(--nb-card);
  overflow:hidden;
  transition:border-color .18s ease-out;
}
.nb-disclose + .nb-disclose{margin-top:-1px}
.nb-disclose[data-open]{border-color:var(--nb-yellow);box-shadow:0 0 0 1px rgba(232,255,90,.4)}
.nb-disclose__btn{
  display:flex;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  text-align:left;
  font-size:15px;
  font-weight:700;
  color:var(--nb-ink);
  transition:background-color .15s ease;
}
.nb-disclose__btn:hover{background:rgba(11,42,36,.04)}
.nb-disclose__icon{position:relative;flex:none;width:16px;height:16px}
.nb-disclose__icon::before,
.nb-disclose__icon::after{content:"";position:absolute;background:var(--nb-red)}
.nb-disclose__icon::before{left:0;right:0;top:7px;height:2px}
.nb-disclose__icon::after{top:0;bottom:0;left:7px;width:2px;transition:transform .18s ease-out}
.nb-disclose[data-open] .nb-disclose__icon::after{transform:scaleY(0)}
.nb-disclose__panel{overflow:hidden;height:0;transition:height .18s ease-out}
.nb-disclose__panel[hidden]{display:none}
.nb-disclose__body{padding:0 16px 16px;font-size:15px;line-height:1.7;color:var(--nb-body);max-width:74ch}

/* 比分脉冲线 */
.nb-pulse{
  display:block;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--nb-red) 18%,var(--nb-yellow) 50%,var(--nb-red) 82%,transparent);
  background-size:200% 100%;
  animation:nb-pulseflow 6s linear infinite;
}
@keyframes nb-pulseflow{
  from{background-position:0 0}
  to{background-position:200% 0}
}

/* 6. 页头 ------------------------------------------------- */
.nb-head{
  position:sticky;
  top:0;
  z-index:80;
  color:var(--nb-cream);
  background:linear-gradient(180deg,rgba(7,18,15,.86) 0%,rgba(7,18,15,.7) 72%,rgba(7,18,15,0) 100%);
  transition:background-color .12s linear,box-shadow .12s linear;
}
.nb-head[data-stuck]{
  background:var(--nb-green-900);
  box-shadow:0 18px 34px -26px rgba(7,18,15,1);
}
.nb-head[data-open]{background:var(--nb-green-900)}
.nb-head__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,24px);
  width:100%;
  max-width:var(--nb-max);
  min-height:var(--nb-head-h);
  margin-inline:auto;
  padding:10px var(--nb-gutter);
}

.nb-skip{
  position:absolute;
  left:16px;
  top:8px;
  z-index:120;
  padding:10px 16px;
  border-radius:var(--nb-radius);
  background:var(--nb-yellow);
  color:var(--nb-black);
  font-family:var(--nb-font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  transform:translateY(-180%);
  transition:transform .15s ease-out;
}
.nb-skip:focus{transform:translateY(0)}

.nb-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.nb-brand__mark{
  display:flex;
  align-items:flex-end;
  gap:2px;
  flex:none;
  width:30px;
  height:30px;
  padding:6px 6px 6px;
  border:1px solid rgba(237,233,225,.42);
  border-radius:2px;
  background:rgba(232,255,90,.06);
}
.nb-brand__mark i{display:block;width:3px;background:var(--nb-rock)}
.nb-brand__mark i:nth-child(1){height:42%;background:var(--nb-red)}
.nb-brand__mark i:nth-child(2){height:72%;background:var(--nb-yellow)}
.nb-brand__mark i:nth-child(3){height:100%;background:var(--nb-blue)}
.nb-brand__name{
  font-size:17px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--nb-cream);
  white-space:nowrap;
}
.nb-brand__sub{
  margin-left:7px;
  font-family:var(--nb-font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.1em;
  color:var(--nb-rock);
}
.nb-brand--foot .nb-brand__mark{width:34px;height:34px}
.nb-brand--foot .nb-brand__name{font-size:18px}

.nb-league__label{
  flex:none;
  font-family:var(--nb-font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--nb-rock);
}
.nb-league{
  position:relative;
  display:flex;
  align-items:center;
  flex:1 1 auto;
  min-width:0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 22px,#000 calc(100% - 22px),transparent);
  mask-image:linear-gradient(90deg,transparent,#000 22px,#000 calc(100% - 22px),transparent);
}
.nb-league__scroll{
  display:flex;
  align-items:center;
  gap:6px;
  width:100%;
  padding:4px 2px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nb-league__scroll::-webkit-scrollbar{display:none}
.nb-league__btn{
  flex:0 0 auto;
  padding:6px 12px;
  border:1px solid rgba(201,196,184,.28);
  border-radius:2px;
  background:transparent;
  color:rgba(237,233,225,.72);
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.06em;
  white-space:nowrap;
  transition:background-color .15s ease,color .15s ease,border-color .15s ease;
}
.nb-league__btn:hover{border-color:var(--nb-yellow);color:var(--nb-yellow)}
.nb-league__btn[aria-pressed="true"]{
  background:var(--nb-yellow);
  border-color:var(--nb-yellow);
  color:var(--nb-black);
  font-weight:700;
}

.nb-nav{flex:0 0 auto}
.nb-nav__list{display:flex;align-items:center;gap:2px}
.nb-nav__link{
  display:block;
  padding:9px 12px;
  border-bottom:2px solid transparent;
  font-size:14px;
  font-weight:600;
  color:rgba(237,233,225,.78);
  transition:color .15s ease,border-color .15s ease;
}
.nb-nav__link:hover{color:var(--nb-yellow)}
.nb-nav__link[aria-current="page"]{color:var(--nb-yellow);border-bottom-color:var(--nb-yellow)}

.nb-head__tools{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.2vw,16px);
  flex:0 0 auto;
  margin-left:auto;
}
.nb-round{
  display:flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border:1px solid rgba(201,196,184,.24);
  border-radius:2px;
  background:rgba(7,18,15,.35);
}
.nb-round__label{
  font-family:var(--nb-font-mono);
  font-size:10px;
  letter-spacing:.12em;
  color:var(--nb-rock);
}
.nb-round__value{
  font-family:var(--nb-font-mono);
  font-size:14px;
  font-weight:800;
  letter-spacing:.04em;
  color:var(--nb-yellow);
}
.nb-round__state{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-family:var(--nb-font-mono);
  font-size:11px;
  color:rgba(237,233,225,.7);
}
.nb-round__state i{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--nb-red);
  box-shadow:0 0 0 3px rgba(226,65,47,.22);
  animation:nb-dot 2.4s ease-in-out infinite;
}
@keyframes nb-dot{50%{opacity:.4}}

.nb-burger{
  display:none;
  width:42px;
  height:38px;
  border:1px solid rgba(201,196,184,.3);
  border-radius:2px;
}
.nb-burger__bar{
  display:block;
  width:18px;
  height:2px;
  margin:3px auto;
  background:var(--nb-cream);
  transition:transform .18s ease-out,opacity .18s ease-out;
}
.nb-head[data-open] .nb-burger__bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nb-head[data-open] .nb-burger__bar:nth-child(2){opacity:0}
.nb-head[data-open] .nb-burger__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.nb-progress{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  height:2px;
  width:0;
  background:var(--nb-yellow);
  transition:width .12s linear;
}

/* 7. 页脚 ------------------------------------------------- */
.nb-foot{
  position:relative;
  overflow:hidden;
  padding-top:clamp(36px,5vw,64px);
  background:var(--nb-green-900);
  border-top:1px solid var(--nb-line-dark);
  color:rgba(237,233,225,.8);
}
.nb-foot::after{
  content:"";
  position:absolute;
  left:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(92,127,163,.18),transparent 68%);
  pointer-events:none;
}
.nb-foot__top{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:clamp(20px,3vw,48px);
}
.nb-foot__brand{display:grid;align-content:start;gap:12px}
.nb-foot .nb-brand__name{color:var(--nb-cream)}
.nb-foot__note{
  max-width:34ch;
  font-size:13px;
  line-height:1.72;
  color:rgba(237,233,225,.6);
}
.nb-foot__col{display:grid;align-content:start}
.nb-foot__title{
  margin-bottom:12px;
  font-family:var(--nb-font-mono);
  font-size:12px;
  font-weight:400;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--nb-rock);
}
.nb-foot__list{display:grid;gap:9px;font-size:14px}
.nb-foot__list a{
  color:rgba(237,233,225,.82);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color .15s ease,border-color .15s ease;
}
.nb-foot__list a:hover{color:var(--nb-yellow);border-bottom-color:var(--nb-yellow)}
.nb-foot__contact{display:grid;gap:8px;margin-bottom:12px;font-size:13.5px;line-height:1.66;color:rgba(237,233,225,.8)}
.nb-foot__contact b{
  display:block;
  font-family:var(--nb-font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.1em;
  color:var(--nb-rock);
}
.nb-foot .nb-pulse{position:relative;z-index:1;margin-top:clamp(28px,4vw,48px);opacity:.85}
.nb-foot__bottom{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 20px;
  margin-top:16px;
  padding-block:16px 24px;
  border-top:1px solid var(--nb-line-dark);
  font-family:var(--nb-font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(237,233,225,.55);
}
.nb-foot__legal{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}
.nb-foot__legal a{color:rgba(237,233,225,.72);transition:color .15s ease}
.nb-foot__legal a:hover{color:var(--nb-yellow)}
.nb-foot__sep{color:rgba(201,196,184,.4)}

/* 8. 响应式 ----------------------------------------------- */
@media (max-width:1024px){
  .nb-col-4,
  .nb-col-5,
  .nb-col-6{grid-column:span 6}
  .nb-col-7,
  .nb-col-8{grid-column:span 12}
  .nb-foot__top{grid-template-columns:1fr 1fr}
  .nb-foot__brand{grid-column:span 2}
}
@media (max-width:1080px){
  .nb-head__inner{flex-wrap:wrap;row-gap:6px}
  .nb-league__label{display:none}
  .nb-brand{order:1}
  .nb-head__tools{order:2;gap:10px}
  .nb-burger{display:grid;place-items:center}
  .nb-league{order:4;flex:1 1 100%}
  .nb-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:none;
    background:var(--nb-green-900);
    border-top:1px solid var(--nb-line-dark);
    box-shadow:0 28px 44px -30px rgba(7,18,15,1);
  }
  .nb-head[data-open] .nb-nav{display:block;animation:nb-drop .18s ease-out}
  .nb-nav__list{flex-direction:column;align-items:stretch;gap:0;padding:4px var(--nb-gutter) 12px}
  .nb-nav__link{
    padding:13px 12px;
    font-size:15px;
    border-bottom:1px solid rgba(201,196,184,.14);
    border-left:2px solid transparent;
  }
  .nb-nav__link[aria-current="page"]{
    border-bottom-color:rgba(201,196,184,.14);
    border-left-color:var(--nb-yellow);
    background:rgba(232,255,90,.08);
  }
}
@keyframes nb-drop{
  from{opacity:0;transform:translateY(-6px)}
  to{opacity:1;transform:translateY(0)}
}
@media (max-width:760px){
  .nb-round__label{display:none}
  .nb-round__state span{display:none}
  .nb-btn--cta{padding:8px 12px;font-size:13px}
  .nb-foot__bottom{justify-content:flex-start}
}
@media (max-width:680px){
  .nb-col-4,
  .nb-col-5,
  .nb-col-6,
  .nb-col-7,
  .nb-col-8{grid-column:span 12}
  .nb-foot__top{grid-template-columns:1fr}
  .nb-foot__brand{grid-column:span 1}
}
@media (max-width:520px){
  .nb-brand__sub{display:none}
  .nb-brand__name{font-size:15px}
  .nb-head__tools{gap:8px}
  .nb-brand__mark{width:26px;height:26px;padding:5px}
}

/* 9. 动效降级 --------------------------------------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .nb-pulse{animation:none;background-position:50% 0}
}