/* =========================================================
   BEPLAY体育 · 共享样式表 /assets/site.css
   墨绿夜底 + 电光青 · 文字建筑 · 双层信息导航
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-950:#04140F;
  --ink-900:#08241C;
  --ink-800:#0E3A2C;
  --ink-700:#1D6B4E;
  --cyan:#12E0C8;
  --cyan-soft:#7BF3E4;
  --yellow:#FFD23F;
  --red:#E23A2E;
  --paper:#F2F7F4;
  --muted:#9DB3AA;
  --charcoal:#0B1A15;

  --line:rgba(157,179,170,.16);
  --line-strong:rgba(157,179,170,.30);
  --line-cyan:rgba(18,224,200,.42);

  --font-display:"Archivo Black","Oswald","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-light:"Oswald","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --shell:1280px;
  --gutter:clamp(18px,5vw,56px);
  --radius:3px;
  --shadow:0 24px 60px -44px rgba(0,0,0,.95);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
img,svg,video{display:block;max-width:100%}
table{border-collapse:collapse}
hr{border:0}

/* ---------- 3. 基础排版 ---------- */
html,body{min-height:100%}
body{
  background:var(--ink-950);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  top:0;right:0;bottom:0;left:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 88% -12%,rgba(18,224,200,.10),transparent 62%),
    radial-gradient(760px 520px at -12% 34%,rgba(29,107,78,.24),transparent 66%);
}
::selection{background:var(--cyan);color:var(--ink-950)}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}
.site-header :focus-visible,.site-footer :focus-visible{outline-color:var(--cyan-soft)}

.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

/* ---------- 4. 排版层级 ---------- */
.title-xl{
  font-family:var(--font-light);
  font-weight:200;
  font-size:clamp(46px,10.5vw,132px);
  line-height:.9;
  letter-spacing:-.015em;
}
.title-lg{
  font-family:var(--font-light);
  font-weight:200;
  font-size:clamp(32px,6vw,74px);
  line-height:1;
  letter-spacing:-.01em;
}
.title-md{
  font-family:var(--font-light);
  font-weight:300;
  font-size:clamp(23px,3.2vw,40px);
  line-height:1.16;
}
.title-sm{
  font-family:var(--font-body);
  font-weight:600;
  font-size:clamp(17px,2vw,21px);
  line-height:1.45;
}
.shout{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(21px,3vw,34px);
  line-height:1.06;
  letter-spacing:-.01em;
}
.lede{
  font-size:clamp(15.5px,1.5vw,18.5px);
  line-height:1.9;
  color:rgba(242,247,244,.80);
  max-width:54ch;
}
.index-label{
  font-size:11px;
  letter-spacing:.18em;
  color:var(--muted);
}
.prose{
  max-width:68ch;
  font-size:16.5px;
  line-height:1.85;
  color:rgba(242,247,244,.86);
}
.prose p + p{margin-top:1.1em}
.prose h2,.prose h3{margin-top:1.6em;margin-bottom:.5em;line-height:1.35}
.prose strong{color:var(--cyan);font-weight:600}
.prose ul,.prose ol{margin-top:1em;padding-left:1.2em}
.prose li{list-style:disc;margin-top:.4em}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.accent{color:var(--cyan)}
.mark-yellow{color:var(--yellow)}
.rule{height:1px;background:var(--line);border:0}

/* ---------- 5. 区块与栅格 ---------- */
.section{
  position:relative;
  padding-block:clamp(46px,7vw,104px);
}
.section--deep{background:var(--ink-900)}
.section--ink{background:var(--ink-950)}
.section--paper{background:var(--paper);color:var(--charcoal)}
.section--paper .lede,.section--paper .prose{color:#31423c}
.section--paper .index-label,.section--paper .muted{color:#5d726a}
.section--paper .rule{background:rgba(11,26,21,.14)}
.section--diag::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,224,200,.55),transparent);
}
.section-head{margin-bottom:clamp(22px,3.4vw,44px)}

.grid{display:grid;gap:clamp(20px,3vw,40px)}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}

/* ---------- 6. 按钮与链接 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 24px;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-body);
  font-size:14px;
  letter-spacing:.08em;
  line-height:1.2;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn--accent{
  background:var(--cyan);
  color:var(--ink-950);
  font-weight:700;
  box-shadow:0 16px 34px -22px rgba(18,224,200,.85);
}
.btn--accent:hover{background:var(--cyan-soft);transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-cyan);color:var(--cyan)}
.btn--ghost:hover{background:rgba(18,224,200,.12);color:var(--paper)}
.btn--quiet{border-color:var(--line-strong);color:var(--paper)}
.btn--quiet:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--small{padding:9px 16px;font-size:12.5px;letter-spacing:.1em}

.link-cyan{color:var(--cyan);border-bottom:1px solid rgba(18,224,200,.42);transition:color .2s}
.link-cyan:hover{color:var(--cyan-soft)}

/* ---------- 7. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:200;
  padding:12px 20px;
  background:var(--cyan);
  color:var(--ink-950);
  font-size:13px;
  letter-spacing:.1em;
  border-radius:2px;
  transform:translateY(-220%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 8. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(4,20,15,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(18,224,200,.55) 22%,rgba(18,224,200,.06) 62%,transparent);
}
.scroll-progress{
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  z-index:2;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-soft));
  transform:scaleX(0);
  transform-origin:0 50%;
}

.brandbar{border-bottom:1px solid var(--line)}
.brandbar__inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2.2vw,30px);
  min-height:76px;
  padding-block:12px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand__mark{
  display:grid;
  place-items:center;
  width:40px;height:40px;
  flex:0 0 auto;
  font-family:var(--font-display);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--ink-950);
  background:linear-gradient(140deg,var(--cyan),var(--cyan-soft));
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:18px;
  line-height:1.1;
  letter-spacing:.01em;
}
.brand__note{font-size:11px;letter-spacing:.14em;color:var(--muted);line-height:1.5;white-space:nowrap}

.brandbar__ticker{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:clamp(6px,2vw,26px);
  font-size:12.5px;
  letter-spacing:.22em;
  color:var(--cyan);
  white-space:nowrap;
}
.brandbar__tick-dot{
  width:6px;height:6px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--yellow);
  box-shadow:0 0 0 4px rgba(255,210,63,.14);
  animation:pulseDot 2.4s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{box-shadow:0 0 0 3px rgba(255,210,63,.14)}
  50%{box-shadow:0 0 0 7px rgba(255,210,63,.04)}
}
.brandbar__hint{
  margin-left:auto;
  padding:7px 13px;
  border:1px solid var(--line);
  border-radius:2px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--muted);
  white-space:nowrap;
}
.brandbar__cta{flex:0 0 auto}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border:1px solid var(--line-cyan);
  border-radius:2px;
  color:var(--cyan);
  font-size:11px;
  letter-spacing:.16em;
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(18,224,200,.12)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bars i{display:block;height:1.5px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(4.5px) 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(-4.5px) rotate(-45deg)}

.mainnav{background:rgba(8,36,28,.45)}
.mainnav__inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.mainnav__list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:clamp(4px,2.2vw,32px);
  counter-reset:nav;
}
.mainnav__item{display:flex;counter-increment:nav}
.mainnav__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:15px 2px;
  font-size:14.5px;
  letter-spacing:.06em;
  color:var(--muted);
  transition:color .2s var(--ease);
}
.mainnav__link::before{
  content:"0" counter(nav);
  font-family:var(--font-num);
  font-size:10px;
  letter-spacing:.08em;
  color:rgba(157,179,170,.6);
  transition:color .2s var(--ease);
}
.mainnav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .24s var(--ease);
}
.mainnav__link:hover{color:var(--paper)}
.mainnav__link:hover::before{color:var(--cyan)}
.mainnav__link:hover::after{transform:scaleX(1)}
.mainnav__link[aria-current="page"]{color:var(--cyan)}
.mainnav__link[aria-current="page"]::before{color:var(--cyan)}
.mainnav__link[aria-current="page"]::after{transform:scaleX(1)}
.mainnav__cta{display:none;counter-increment:none}
.mainnav__meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--muted);
  white-space:nowrap;
}
.pulse{
  width:44px;height:8px;
  background:repeating-linear-gradient(90deg,var(--cyan) 0 4px,transparent 4px 9px);
  opacity:.6;
  animation:pulseShift 1.9s ease-in-out infinite;
}
@keyframes pulseShift{0%,100%{opacity:.22}50%{opacity:.72}}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  margin-top:clamp(54px,9vw,120px);
  background:var(--ink-900);
  border-top:1px solid var(--line-cyan);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-32%;right:-14%;
  width:min(680px,74vw);
  height:min(680px,74vw);
  pointer-events:none;
  background:radial-gradient(circle,rgba(18,224,200,.13),transparent 62%);
}
.footer__inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2.1fr);
  gap:clamp(30px,5vw,72px);
  padding-block:clamp(46px,7vw,92px);
}
.footer__logo{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.1;
  letter-spacing:.01em;
}
.footer__tag{
  margin-top:12px;
  font-size:11.5px;
  letter-spacing:.22em;
  color:var(--cyan);
}
.footer__note{
  margin-top:14px;
  max-width:34ch;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.footer__brand .btn{margin-top:20px}

.footer__nav{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(18px,3vw,34px);
}
.footer__col-title{
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-body);
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--paper);
}
.footer__links li + li{margin-top:11px}
.footer__link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:14.5px;
  color:rgba(242,247,244,.78);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__link::before{content:"";width:9px;height:1px;background:currentColor;opacity:.45}
.footer__link:hover{color:var(--cyan);transform:translateX(3px)}

.footer__contact{
  grid-column:1 / -1;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:clamp(16px,2.4vw,32px);
  padding-top:clamp(26px,4vw,44px);
  border-top:1px solid var(--line);
}
.contact-item{min-width:0}
.contact-item--wide{grid-column:1 / -1}
.contact-item__label{
  margin-bottom:8px;
  font-size:11px;
  letter-spacing:.18em;
  color:var(--muted);
}
.contact-item__value{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-num);
  font-size:14px;
  color:var(--paper);
  word-break:break-word;
}
.contact-item--wide .contact-item__value{font-family:var(--font-body);font-size:14.5px;line-height:1.7}
.copy-btn{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border:1px solid var(--line-strong);
  border-radius:2px;
  font-family:var(--font-body);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
  cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.copy-btn:hover{color:var(--cyan);border-color:var(--line-cyan)}
.copy-btn[data-copied="true"]{color:var(--yellow);border-color:rgba(255,210,63,.5);background:rgba(255,210,63,.08)}

.footer__legal{
  position:relative;
  z-index:1;
  background:rgba(4,20,15,.6);
  border-top:1px solid var(--line);
}
.footer__legal-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 26px;
  padding-block:18px;
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--muted);
}
.footer__legal-item{white-space:nowrap}
.footer__legal-note{flex:1 1 320px;line-height:1.7}

/* ---------- 10. 面包屑 ---------- */
.crumbs{
  padding-block:14px;
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--muted);
}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.crumbs__sep{opacity:.5}
.crumbs__link:hover{color:var(--cyan)}
.crumbs__item[aria-current="page"]{color:var(--paper)}

/* ---------- 11. 卡片 · 标签 · 统计 ---------- */
.card{
  position:relative;
  padding:clamp(20px,2.4vw,32px);
  background:var(--ink-900);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.card--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%)}
.card--accent{border-color:var(--line-cyan)}
.card__title{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:8px}
.card__meta{font-size:11px;letter-spacing:.16em;color:var(--muted)}
.section--paper .card{background:#fff;border-color:rgba(11,26,21,.12)}

.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 10px;
  border:1px solid var(--line-strong);
  border-radius:2px;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
}
.tag--cyan{color:var(--cyan);border-color:var(--line-cyan)}
.tag--yellow{color:var(--yellow);border-color:rgba(255,210,63,.45);background:rgba(255,210,63,.08)}
.tag--red{color:var(--red);border-color:rgba(226,58,46,.5);background:rgba(226,58,46,.1)}

.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:clamp(16px,2.6vw,32px)}
.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:clamp(28px,4vw,44px);
  line-height:1.05;
  color:var(--cyan);
}
.stat__label{font-size:11px;letter-spacing:.16em;color:var(--muted)}

/* ---------- 12. 媒体容器（页面阶段放图） ---------- */
.media{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(135deg,var(--ink-800),var(--ink-900));
}
.media--16x9{aspect-ratio:16 / 9}
.media--4x3{aspect-ratio:4 / 3}
.media--1x1{aspect-ratio:1 / 1}
.media--wide{aspect-ratio:21 / 9}
.media--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 34px),calc(100% - 34px) 100%,0 100%)}
.media img{width:100%;height:100%;object-fit:cover}
.media--shade::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:62%;
  pointer-events:none;
  background:linear-gradient(to top,rgba(4,20,15,.74),transparent);
}
.media__cap{margin-top:10px;font-size:11px;letter-spacing:.14em;color:var(--muted)}

/* ---------- 13. 数据表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
.table{width:100%;min-width:520px;font-size:14px}
.table th{
  padding:12px 16px;
  text-align:left;
  background:var(--ink-800);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--paper);
  white-space:nowrap;
}
.table td{
  padding:12px 16px;
  border-top:1px solid var(--line);
  color:rgba(242,247,244,.84);
}
.table td.num,.table th.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.section--paper .table-wrap{border-color:rgba(11,26,21,.14)}
.section--paper .table th{background:var(--ink-800);color:var(--paper)}
.section--paper .table td{border-top-color:rgba(11,26,21,.1);color:#2f4139}

/* ---------- 14. 标签页 ---------- */
.tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom:clamp(20px,3vw,32px);
  border-bottom:1px solid var(--line);
}
.tabs__tab{
  padding:12px 18px;
  border-bottom:2px solid transparent;
  font-size:13.5px;
  letter-spacing:.08em;
  color:var(--muted);
  cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tabs__tab:hover{color:var(--paper);background:rgba(18,224,200,.06)}
.tabs__tab[aria-selected="true"]{color:var(--cyan);border-bottom-color:var(--cyan)}
.tabs__panel{padding-top:4px}
.tabs__panel[hidden]{display:none}
.tabs__panel:not([hidden]){animation:riseIn .24s var(--ease) both}
@keyframes riseIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- 15. 折叠手风琴 ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 4px;
  font-size:16px;
  color:var(--paper);
  cursor:pointer;
  list-style:none;
}
.accordion__summary::-webkit-details-marker{display:none}
.accordion__summary::after{
  content:"";
  flex:0 0 auto;
  width:9px;height:9px;
  border-right:1.5px solid var(--cyan);
  border-bottom:1.5px solid var(--cyan);
  transform:rotate(45deg);
  transition:transform .22s var(--ease);
}
.accordion__item[open] .accordion__summary::after{transform:rotate(-135deg)}
.accordion__body{
  padding:0 4px 22px;
  max-width:68ch;
  line-height:1.85;
  color:rgba(242,247,244,.8);
}
.section--paper .accordion,.section--paper .accordion__item{border-color:rgba(11,26,21,.14)}
.section--paper .accordion__summary{color:var(--charcoal)}
.section--paper .accordion__body{color:#31423c}

/* ---------- 16. 显现动画 ---------- */
.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.js-ready [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 17. 响应式 ---------- */
@media (max-width:1120px){
  .brand__note{display:none}
  .mainnav__meta{display:none}
}
@media (max-width:980px){
  .grid--7-5,.grid--5-7,.grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer__inner{grid-template-columns:minmax(0,1fr)}
  .footer__nav{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:920px){
  .brandbar__inner{flex-wrap:wrap;row-gap:10px;min-height:0;padding-block:11px}
  .brand{order:1}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}
  .brandbar__ticker{order:3;flex:1 1 100%;margin-left:0;font-size:11.5px;letter-spacing:.18em}
  .brandbar__hint{display:none}
  .brandbar__cta{display:none}

  .mainnav{
    position:absolute;
    left:0;right:0;top:100%;
    display:block;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    background:rgba(4,20,15,.99);
    border-bottom:1px solid var(--line-cyan);
    transition:max-height .28s var(--ease),visibility .28s var(--ease);
  }
  .mainnav[data-open]{max-height:min(78vh,640px);overflow-y:auto;visibility:visible}
  .mainnav__inner{flex-direction:column;align-items:stretch;gap:0;padding-block:6px 22px}
  .mainnav__list{flex-direction:column;align-items:stretch;gap:0}
  .mainnav__item{border-bottom:1px solid var(--line)}
  .mainnav__link{justify-content:flex-start;padding:17px 2px;font-size:17px;color:var(--paper)}
  .mainnav__link::after{display:none}
  .mainnav__link:hover{color:var(--cyan)}
  .mainnav__link[aria-current="page"]{color:var(--cyan)}
  .mainnav__cta{display:flex;border-bottom:0;padding-top:18px}
  .mainnav__cta .btn{width:100%;justify-content:center}
  .mainnav__meta{display:none}
}
@media (max-width:620px){
  .footer__nav{grid-template-columns:minmax(0,1fr)}
  .footer__contact{grid-template-columns:minmax(0,1fr)}
  .footer__legal-inner{gap:6px 18px}
  .table{min-width:460px}
}

/* ---------- 18. 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;
  }
  .js-ready [data-reveal]{opacity:1;transform:none}
  .brandbar__tick-dot,.pulse{animation:none}
  .tabs__panel:not([hidden]){animation:none}
}