/* ==========================================================================
   新2足球备用 · 共享样式 /assets/site.css
   都市夜场看台：深色底 + 夜灯绿主光 + 橙蓝分区语义
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#0E1412;
  --ink-2:#16211E;
  --ink-3:#0A0F0D;
  --green:#2FBF71;
  --green-line:#7BE0A8;
  --orange:#FF7A1A;
  --orange-soft:#FFB27A;
  --blue:#4FA3FF;
  --concrete:#6E7A75;
  --white:#E8EFEA;
  --mist:#A9B4AF;

  --line:rgba(110,122,117,.32);
  --line-strong:rgba(110,122,117,.55);

  --radius-xl:32px;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-pill:999px;

  --gap:clamp(1rem,2.2vw,1.75rem);
  --section-y:clamp(2.5rem,6vw,5rem);

  --dur:200ms;
  --ease:cubic-bezier(.4,.7,.3,1);

  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Mono","DejaVu Sans Mono",Menlo,Consolas,monospace;
}

/* ---------- 2. 重置与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:130px;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 600px at 84% -12%, rgba(47,191,113,.13), transparent 62%),
    radial-gradient(900px 520px at -6% 104%, rgba(79,163,255,.07), transparent 60%);
  background-repeat:no-repeat;
  background-attachment:fixed;
}

body{
  margin:0;
  min-height:100vh;
  background:transparent;
  color:var(--white);
  font-family:var(--font-sans);
  font-size:clamp(16px,.28vw + 15.2px,17px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
::selection{background:var(--green);color:#06120C}
:focus-visible{outline:2px solid var(--green-line);outline-offset:3px;border-radius:4px}

.skip-link{
  position:fixed;
  top:.75rem;
  left:.75rem;
  z-index:200;
  display:inline-block;
  padding:.7rem 1.15rem;
  border-radius:var(--radius-pill);
  background:var(--green);
  color:#06120C;
  font-weight:700;
  font-size:.9rem;
  letter-spacing:.02em;
  transform:translateY(-180%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 3. 布局容器 ---------- */
.shell{
  width:min(1280px,100% - 2.5rem);
  margin-inline:auto;
}

.section{padding-block:var(--section-y)}
.section--wide{padding-block:clamp(3rem,8vw,7rem)}
.section--rule{border-top:1px solid var(--line)}

.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--asym{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}

/* ---------- 4. 文字系统 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--green-line);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--green);
}

.display{
  font-size:clamp(2.6rem,8vw,5.4rem);
  line-height:.96;
  font-weight:900;
  letter-spacing:-.03em;
  color:var(--white);
}

.section-title{
  font-size:clamp(1.6rem,3.4vw,2.35rem);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.015em;
  color:var(--white);
}

.lede{
  font-size:clamp(1rem,1.4vw,1.14rem);
  line-height:1.8;
  color:var(--mist);
  max-width:62ch;
}

.note{
  font-size:.86rem;
  line-height:1.7;
  color:var(--mist);
}

.prose{
  max-width:68ch;
  display:grid;
  gap:1rem;
  color:var(--white);
}
.prose h2{
  font-size:clamp(1.25rem,2.3vw,1.65rem);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.01em;
  margin-top:.6rem;
}
.prose h3{
  font-size:clamp(1.05rem,1.8vw,1.25rem);
  font-weight:700;
  margin-top:.4rem;
}
.prose p{color:var(--white)}
.prose ul{display:grid;gap:.6rem}
.prose li{position:relative;padding-left:1.5rem;color:var(--mist)}
.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.8em;
  width:9px;
  height:2px;
  border-radius:2px;
  background:var(--green);
}
.prose a{color:var(--green-line);border-bottom:1px solid rgba(123,224,168,.4)}
.prose a:hover{border-bottom-color:var(--green-line)}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.72rem 1.35rem;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:.94rem;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  text-align:center;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--green-line);outline-offset:3px}

.btn--primary{background:var(--green);border-color:var(--green);color:#07160E}
.btn--primary:hover{background:var(--green-line);border-color:var(--green-line)}

.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--white)}
.btn--ghost:hover{border-color:var(--green-line);color:var(--green-line)}

.btn--quiet{background:rgba(110,122,117,.14);border-color:transparent;color:var(--mist)}
.btn--quiet:hover{background:rgba(110,122,117,.24);color:var(--white)}

/* ---------- 6. 卡片 / 标签 / 状态点 ---------- */
.card{
  position:relative;
  display:grid;
  gap:.75rem;
  padding:clamp(1.1rem,2.2vw,1.6rem);
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 18px 40px rgba(0,0,0,.42);
}
.card__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
}
.card__title{
  font-size:1.05rem;
  font-weight:800;
  letter-spacing:.005em;
  color:var(--white);
}
.card__body{font-size:.94rem;line-height:1.75;color:var(--mist)}
.card__foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  margin-top:.2rem;
  padding-top:.7rem;
  border-top:1px solid var(--line);
}

.card--alert{border-color:rgba(255,122,26,.38)}
.card--alert::after{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(180deg,var(--orange),rgba(255,122,26,0));
}
.card--alert:hover{border-color:var(--orange);box-shadow:0 18px 40px rgba(255,122,26,.12)}

.card--device{border-color:rgba(79,163,255,.38)}
.card--device::after{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(180deg,var(--blue),rgba(79,163,255,0));
}
.card--device:hover{border-color:var(--blue);box-shadow:0 18px 40px rgba(79,163,255,.12)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.3rem .7rem;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(110,122,117,.12);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  white-space:nowrap;
}
.tag--ok{border-color:rgba(47,191,113,.5);background:rgba(47,191,113,.12);color:var(--green-line)}
.tag--alert{border-color:rgba(255,122,26,.5);background:rgba(255,122,26,.12);color:var(--orange-soft)}
.tag--device{border-color:rgba(79,163,255,.5);background:rgba(79,163,255,.12);color:var(--blue)}

.status-dot{
  display:inline-block;
  flex:none;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(47,191,113,.18);
}
.status-dot--alert{background:var(--orange);box-shadow:0 0 0 3px rgba(255,122,26,.18)}
.status-dot--device{background:var(--blue);box-shadow:0 0 0 3px rgba(79,163,255,.18)}

/* ---------- 7. 折叠面板 / 面包屑 / 图片框 / 数据行 ---------- */
.fold{
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease);
}
.fold:hover{border-color:var(--line-strong)}
.fold__summary{
  display:flex;
  align-items:center;
  gap:1rem;
  padding:1rem 1.2rem;
  cursor:pointer;
  font-weight:700;
  color:var(--white);
  list-style:none;
}
.fold__summary::-webkit-details-marker{display:none}
.fold__summary::after{
  content:"";
  flex:none;
  margin-left:auto;
  width:9px;
  height:9px;
  border-right:2px solid var(--green);
  border-bottom:2px solid var(--green);
  transform:rotate(45deg);
  transition:transform var(--dur) var(--ease);
}
.fold[open] .fold__summary::after{transform:rotate(-135deg)}
.fold__summary:focus-visible{outline:2px solid var(--green-line);outline-offset:-2px}
.fold__body{
  display:grid;
  gap:.7rem;
  padding:0 1.2rem 1.2rem;
  font-size:.94rem;
  line-height:1.75;
  color:var(--mist);
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  margin-bottom:1.2rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--concrete);
}
.breadcrumb a{color:var(--mist)}
.breadcrumb a:hover{color:var(--green-line)}
.breadcrumb__sep{color:var(--concrete);opacity:.7}
.breadcrumb [aria-current="page"]{color:var(--green-line)}

.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(47,191,113,.10),rgba(22,33,30,.92) 55%,rgba(79,163,255,.08));
  aspect-ratio:16 / 10;
}
.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  opacity:.45;
  background-image:
    linear-gradient(rgba(110,122,117,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(110,122,117,.16) 1px,transparent 1px);
  background-size:28px 28px;
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:inherit;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--portrait{aspect-ratio:3 / 4}
.media-frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:.9rem 1.1rem;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.06em;
  color:var(--white);
  background:linear-gradient(180deg,rgba(14,20,18,0),rgba(14,20,18,.92));
}

.stat-row{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.stat{
  display:grid;
  gap:.2rem;
  padding:1rem 1.1rem;
  background:var(--ink-2);
}
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(1.35rem,3vw,1.95rem);
  font-weight:700;
  letter-spacing:.08em;
  color:var(--white);
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--concrete);
}

/* ---------- 8. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  transition:box-shadow var(--dur) var(--ease);
}
.site-header[data-scrolled]{box-shadow:0 16px 40px rgba(0,0,0,.5)}

.header-ticker{
  background:var(--ink-3);
  border-bottom:1px solid var(--line);
}
.ticker-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.25rem;
  min-height:34px;
  padding-block:.25rem;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
.ticker-item{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  white-space:nowrap;
}
.ticker-item--dim{color:var(--concrete)}

.header-main{
  background:rgba(14,20,18,.96);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--gap);
  min-height:78px;
  padding-block:.6rem;
}

.brand-rail{
  display:inline-flex;
  align-items:center;
  gap:.8rem;
  flex:none;
}
.brand-rail__grip{
  display:block;
  width:6px;
  height:40px;
  border-radius:var(--radius-pill);
  background:linear-gradient(180deg,var(--green-line),var(--green));
  box-shadow:0 0 0 1px rgba(123,224,168,.22),0 0 18px rgba(47,191,113,.35);
}
.brand-rail__text{display:flex;flex-direction:column;gap:1px}
.brand-rail__name{
  font-size:1.06rem;
  font-weight:900;
  letter-spacing:.06em;
  color:var(--white);
}
.brand-rail__meta{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--concrete);
}

.site-nav{display:block}
.nav-list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:.3rem;
}
.nav-item{display:flex}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  padding:.52rem .9rem;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:.9rem;
  font-weight:600;
  color:var(--mist);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease),
             border-color var(--dur) var(--ease);
}
.nav-link__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--concrete);
  transition:color var(--dur) var(--ease);
}
.nav-link:hover{
  color:var(--white);
  background:rgba(110,122,117,.14);
  border-color:var(--line-strong);
}
.nav-link:focus-visible{outline:2px solid var(--green-line);outline-offset:2px}
.nav-link[aria-current="page"]{
  color:var(--white);
  border-color:var(--green-line);
  background:rgba(47,191,113,.12);
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--green-line)}
.nav-link[aria-current="page"]::before{
  content:"";
  flex:none;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(47,191,113,.22);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.6rem;
  padding:.55rem .95rem;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:var(--ink-2);
  color:var(--white);
  font-size:.88rem;
  font-weight:700;
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--green-line);color:var(--green-line)}
.nav-toggle__label{letter-spacing:.06em}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
  width:16px;
}
.nav-toggle__bars i{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  margin-top:clamp(3rem,8vw,6rem);
  background:linear-gradient(180deg,#101917,#0A0F0D);
  border-top:1px solid var(--line);
  color:var(--mist);
}
.footer-shell{padding-block:clamp(2.5rem,6vw,4.5rem) clamp(1.5rem,4vw,2.5rem)}

.footer-lead{
  display:grid;
  gap:.85rem;
  max-width:52ch;
  padding-bottom:clamp(1.6rem,4vw,2.6rem);
  border-bottom:1px solid var(--line);
}
.footer-kicker{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--green-line);
}
.footer-wordmark{
  font-size:clamp(1.6rem,4vw,2.35rem);
  font-weight:900;
  line-height:1.1;
  letter-spacing:.02em;
  color:var(--white);
}
.footer-note{font-size:.92rem;line-height:1.8;color:var(--mist)}
.footer-lead__actions{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  margin-top:.5rem;
}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gap);
  padding-block:clamp(1.8rem,4vw,2.8rem);
}

.footer-col{display:grid;gap:.9rem;align-content:start}
.footer-col__title{
  display:flex;
  align-items:center;
  gap:.55rem;
  font-size:12px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mist);
}
.footer-col__title::before{
  content:"";
  width:14px;
  height:2px;
  border-radius:2px;
  background:var(--green);
}

.contact-list{display:grid;gap:.85rem}
.contact-item{display:grid;gap:.15rem}
.contact-item__key{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--concrete);
}
.contact-item__val{
  font-family:var(--font-mono);
  font-size:.94rem;
  letter-spacing:.04em;
  color:var(--white);
  word-break:break-word;
}
.contact-item__val--text{
  font-family:var(--font-sans);
  font-size:.95rem;
  letter-spacing:.01em;
  line-height:1.7;
}
.footer-hint{font-size:.82rem;line-height:1.75;color:var(--concrete)}

.footer-index{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:.35rem 1rem;
}
.footer-index--single{grid-template-columns:1fr}
.footer-link{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.2rem 0;
  font-size:.92rem;
  color:var(--mist);
  transition:color var(--dur) var(--ease);
}
.footer-link::before{
  content:"";
  flex:none;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--concrete);
  transition:background var(--dur) var(--ease);
}
.footer-link:hover{color:var(--green-line)}
.footer-link:hover::before{background:var(--green)}
.footer-link:focus-visible{outline:2px solid var(--green-line);outline-offset:3px;border-radius:6px}

.legal-list{display:grid;gap:.6rem;justify-items:start}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.6rem 1.2rem;
  padding-top:clamp(1.2rem,3vw,1.8rem);
  border-top:1px solid var(--line);
  font-size:.8rem;
  color:var(--concrete);
}
.footer-bottom__meta{
  font-family:var(--font-mono);
  letter-spacing:.08em;
  text-transform:uppercase;
}

/* ---------- 10. JS 生成件 ---------- */
.scroll-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  z-index:120;
  pointer-events:none;
}
.scroll-progress__bar{
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--green),var(--green-line));
  box-shadow:0 0 12px rgba(47,191,113,.5);
}

.to-top{
  position:fixed;
  right:1.1rem;
  bottom:1.1rem;
  z-index:90;
  display:grid;
  place-items:center;
  width:46px;
  height:46px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:var(--ink-2);
  color:var(--white);
  font-size:1.05rem;
  line-height:1;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),
             border-color var(--dur) var(--ease),color var(--dur) var(--ease),
             visibility var(--dur) var(--ease);
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--green-line);color:var(--green-line)}
.to-top:focus-visible{outline:2px solid var(--green-line);outline-offset:3px}

html.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease);
}
html.js [data-reveal][data-revealed]{
  opacity:1;
  transform:none;
}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1000px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--asym{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid .footer-col:first-child{grid-column:1 / -1}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}

  html.js .site-nav{
    position:absolute;
    top:calc(100% + 8px);
    left:0;
    right:0;
    display:none;
    padding:.6rem;
    background:var(--ink-2);
    border:1px solid var(--line-strong);
    border-radius:var(--radius-lg);
    box-shadow:0 26px 60px rgba(0,0,0,.6);
  }
  html.js .site-nav[data-open]{display:block}
  html.js .nav-list{flex-direction:column;align-items:stretch;gap:.15rem}
  html.js .nav-link{
    width:100%;
    justify-content:flex-start;
    padding:.8rem 1rem;
    font-size:1rem;
    border-radius:var(--radius-md);
  }
  html.js .nav-link__idx{width:2em}
}

@media (max-width:760px){
  .ticker-item--wide{display:none}
  .header-inner{min-height:68px}
  .grid--2{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid .footer-col:first-child{grid-column:auto}
  .footer-index{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-index--single{grid-template-columns:1fr}
}

@media (max-width:520px){
  .shell{width:min(1280px,100% - 1.75rem)}
  .brand-rail__meta{display:none}
  .brand-rail__grip{height:34px}
  .nav-toggle__label{display:none}
  .ticker-inner{font-size:10px;letter-spacing:.1em}
  .footer-index{grid-template-columns:1fr}
  .to-top{right:.85rem;bottom:.85rem}
}

/* ---------- 12. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js [data-reveal],
  html.js [data-reveal][data-revealed]{
    opacity:1;
    transform:none;
  }
  .card:hover,.btn:hover,.to-top{transform:none}
}