/* =========================================================
   HAHA体育 — 共享站点样式 /assets/site.css
   ========================================================= */

/* ---------- 1. 令牌 ---------- */
:root{
  --ink-0:#060B1C;
  --ink-1:#0C1430;
  --ink-2:#131E3D;
  --cyan:#23E5D5;
  --orange:#FF6B2C;
  --gold:#FFC53D;
  --white:#EEF4FF;
  --muted:#93A6C9;
  --line:#26324F;
  --teal:#0A2B33;

  --rail-w:88px;
  --shell:1280px;
  --pad:32px;
  --radius:14px;
  --shadow:0 8px 24px rgba(3,7,18,.55);
  --ease:cubic-bezier(.2,.8,.2,1);

  --font-display:"Archivo Black","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--rail-w);
  min-height:100vh;
  background-color:var(--ink-0);
  background-image:
    radial-gradient(900px 520px at 90% -6%,rgba(35,229,213,.10),transparent 62%),
    radial-gradient(760px 500px at -8% 22%,rgba(255,107,44,.07),transparent 64%);
  background-repeat:no-repeat;
  color:var(--white);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
a{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 3. 中文排版与标题 ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.15;letter-spacing:-.02em}
p{max-width:72ch}
.display-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(40px,7vw,88px);
  line-height:1.02;
  letter-spacing:-.03em;
  transform:skewX(-3deg);
  transform-origin:left center;
}
.h2{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(30px,3.6vw,56px);
  line-height:1.08;
  letter-spacing:-.025em;
  transform:skewX(-2.5deg);
  transform-origin:left center;
}
.h3{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(20px,2.3vw,32px);
  line-height:1.22;
  letter-spacing:-.02em;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);flex:0 0 auto}
.lede{font-size:clamp(17px,1.5vw,19px);line-height:1.75;color:var(--muted);max-width:64ch}
.mono,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 4. 焦点与跳转 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.skip-link{
  position:fixed;top:10px;left:calc(var(--rail-w) + 12px);z-index:200;
  padding:10px 16px;border-radius:8px;
  background:var(--cyan);color:#04121a;
  font-size:14px;font-weight:600;text-decoration:none;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 5. 容器与网格 ---------- */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 var(--pad)}
.shell--narrow{max-width:820px}
.shell--wide{max-width:1480px}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.section{padding:clamp(56px,7vw,104px) 0}
.section--tight{padding:clamp(36px,4vw,64px) 0}

/* ---------- 6. 品牌轨道 ---------- */
.brand-rail{
  position:fixed;left:0;top:0;bottom:0;width:var(--rail-w);z-index:60;
  display:flex;flex-direction:column;align-items:center;gap:18px;
  padding:22px 0 20px;
  background:linear-gradient(180deg,#0A1128 0%,#070D20 44%,#0A2B33 100%);
  border-right:1px solid var(--line);
}
.brand-rail__mark{display:flex;flex-direction:column;align-items:center;gap:9px;text-decoration:none;color:var(--white)}
.brand-rail__glyph{
  display:grid;place-items:center;width:38px;height:38px;border-radius:10px;
  background:linear-gradient(150deg,var(--cyan),var(--orange));
  color:#04121a;font-family:var(--font-display);font-size:20px;font-weight:900;
  transform:skewX(-8deg);
}
.brand-rail__text{
  writing-mode:vertical-rl;
  font-family:var(--font-display);font-size:11px;font-weight:900;
  letter-spacing:.24em;color:var(--muted);
}
.rail-ticks{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  width:100%;margin:auto 0;
}
.rail-tick{position:relative;display:grid;place-items:center;width:100%;height:34px;text-decoration:none}
.rail-tick__dot{
  width:8px;height:8px;border-radius:50%;
  border:1px solid var(--line);background:#0C1430;
  transition:border-color .24s,background .24s,box-shadow .24s;
}
.rail-tick:hover .rail-tick__dot{border-color:var(--cyan);background:rgba(35,229,213,.4)}
.rail-tick__label{
  position:absolute;left:calc(100% + 10px);top:50%;
  padding:5px 10px;border-radius:6px;border:1px solid var(--line);
  background:var(--ink-2);color:var(--white);
  font-size:12px;white-space:nowrap;
  opacity:0;pointer-events:none;
  transform:translateY(-50%) translateX(-6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
  z-index:5;
}
.rail-tick:hover .rail-tick__label,
.rail-tick:focus-visible .rail-tick__label{opacity:1;transform:translateY(-50%) translateX(0)}
.rail-meter{display:flex;flex-direction:column;align-items:center;gap:10px}
.rail-progress{
  position:relative;width:6px;height:132px;border-radius:99px;
  background:rgba(38,50,79,.75);overflow:hidden;
}
.rail-progress__bar{
  position:absolute;left:0;bottom:0;width:100%;height:var(--p,0%);
  border-radius:99px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));
}
.rail-progress__value{
  font-family:var(--font-mono);font-size:11px;line-height:1;
  font-weight:500;letter-spacing:.06em;color:var(--gold);
}

/* ---------- 7. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#070D20;
  border-bottom:1px solid var(--line);
}
.header-top{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:var(--shell);margin:0 auto;padding:0 var(--pad);
  height:42px;overflow:hidden;
  border-bottom:1px solid var(--line);
  transition:height .28s var(--ease),opacity .22s linear,border-color .28s linear;
}
.site-header[data-collapsed] .header-top{height:0;opacity:0;border-color:transparent}
.header-top__line{
  margin:0;font-size:13px;color:var(--muted);letter-spacing:.02em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.header-top__cta{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border:1px solid rgba(35,229,213,.42);border-radius:999px;
  color:var(--cyan);font-size:12px;font-weight:600;letter-spacing:.04em;
  text-decoration:none;white-space:nowrap;
  transition:background .2s,border-color .2s;
}
.header-top__cta:hover{background:rgba(35,229,213,.12);border-color:var(--cyan)}

.header-main{
  display:flex;align-items:center;gap:24px;
  max-width:var(--shell);margin:0 auto;padding:0 var(--pad);
  height:70px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;color:var(--white)}
.brand__glyph{
  display:grid;place-items:center;width:34px;height:34px;border-radius:9px;
  background:linear-gradient(140deg,var(--cyan),var(--orange));
  color:#04121a;font-family:var(--font-display);font-size:18px;font-weight:900;
  transform:skewX(-8deg);flex:0 0 auto;
}
.brand__name{
  font-family:var(--font-display);font-size:19px;font-weight:900;
  letter-spacing:-.01em;transform:skewX(-3deg);
}
.brand__name b{color:var(--cyan);font-weight:900}

.site-nav{margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:4px}
.site-nav__link{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 14px;border-radius:8px;
  color:var(--muted);font-size:15px;font-weight:500;letter-spacing:.01em;
  text-decoration:none;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--cyan);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.site-nav__link:hover{color:var(--white);background:rgba(35,229,213,.05)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--white);font-weight:600}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);box-shadow:0 0 10px rgba(35,229,213,.7)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  height:38px;padding:0 14px;margin-left:12px;
  border:1px solid var(--line);border-radius:9px;
  background:rgba(19,30,61,.8);color:var(--white);
  font-size:14px;font-weight:600;letter-spacing:.04em;
}
.nav-toggle:hover{border-color:rgba(35,229,213,.6)}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:var(--cyan);transition:transform .24s var(--ease),opacity .2s linear}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) 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(-6px) rotate(-45deg)}
.nav-toggle__text{line-height:1}

.nav-scrim{display:none}

/* ---------- 8. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:10px;
  font-family:var(--font-body);font-size:15px;font-weight:600;letter-spacing:.02em;
  text-decoration:none;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),
             background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,#FF8A3D,var(--orange));
  color:#14060A;
  box-shadow:0 8px 24px rgba(255,107,44,.28);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,107,44,.42)}
.btn--cyan{
  background:var(--cyan);color:#04121A;
  box-shadow:0 8px 24px rgba(35,229,213,.22);
}
.btn--cyan:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(35,229,213,.36)}
.btn--ghost{
  border-color:var(--line);background:rgba(19,30,61,.6);color:var(--white);
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px}

/* ---------- 9. 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:20px 0;font-size:13px;color:var(--muted);
}
.crumb a{color:var(--muted);text-decoration:none;transition:color .2s}
.crumb a:hover{color:var(--cyan)}
.crumb__sep{color:var(--line)}
.crumb [aria-current="page"]{color:var(--white)}

/* ---------- 10. 卡片 / 计分板 / 标签 ---------- */
.card{
  position:relative;padding:24px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(19,30,61,.92),rgba(12,20,48,.72));
  box-shadow:var(--shadow);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.card:hover{border-color:rgba(35,229,213,.5);transform:translateY(-3px)}
.card__title{font-family:var(--font-display);font-size:20px;font-weight:900;line-height:1.3;letter-spacing:-.015em}

.stat{display:flex;flex-direction:column;gap:8px}
.stat__num{
  font-family:var(--font-mono);font-size:clamp(34px,4.4vw,56px);font-weight:700;
  line-height:1;letter-spacing:.01em;color:var(--white);
}
.stat__num--cyan{color:var(--cyan)}
.stat__num--gold{color:var(--gold)}
.stat__label{font-size:13px;letter-spacing:.06em;color:var(--muted)}

.pulse-dot{
  position:relative;display:inline-block;width:8px;height:8px;flex:0 0 auto;
  border-radius:50%;background:var(--orange);
}
.pulse-dot::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:1px solid var(--orange);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%{transform:scale(.6);opacity:.9}
  70%{transform:scale(1.7);opacity:0}
  100%{transform:scale(1.7);opacity:0}
}
.live-flag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.12em;text-transform:uppercase;color:var(--orange);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;border:1px solid var(--line);border-radius:999px;
  background:rgba(12,20,48,.8);
  font-size:12px;font-weight:500;letter-spacing:.05em;color:var(--muted);
}
.tag--cyan{border-color:rgba(35,229,213,.42);color:var(--cyan)}
.tag--gold{border-color:rgba(255,197,61,.42);color:var(--gold)}

/* ---------- 11. 框景与渐变带 ---------- */
.framed{
  position:relative;overflow:hidden;
  padding:clamp(24px,4vw,56px);
  border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(150deg,rgba(12,20,48,.88),rgba(6,11,28,.62));
  box-shadow:var(--shadow);
}
.framed::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.26;
  background-image:
    linear-gradient(rgba(38,50,79,.9) 1px,transparent 1px),
    linear-gradient(90deg,rgba(38,50,79,.9) 1px,transparent 1px);
  background-size:64px 64px;
}
.framed::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange) 52%,transparent);
}
.framed > *{position:relative;z-index:1}

.band{
  position:relative;height:clamp(88px,12vw,168px);overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:
    radial-gradient(60% 140% at 18% 50%,rgba(35,229,213,.18),transparent 70%),
    radial-gradient(50% 130% at 82% 50%,rgba(255,107,44,.16),transparent 72%),
    linear-gradient(90deg,#0A2B33,#060B1C 46%,#0C1430);
}
.band::after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:
    linear-gradient(rgba(38,50,79,.7) 1px,transparent 1px),
    linear-gradient(90deg,rgba(38,50,79,.7) 1px,transparent 1px);
  background-size:48px 48px;
}

/* ---------- 12. 响应式图片容器 ---------- */
.figure{
  position:relative;margin:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:#0A1226;
}
.figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(35,229,213,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(35,229,213,.07) 1px,transparent 1px);
  background-size:36px 36px;
}
.figure img{width:100%;height:100%;object-fit:cover}
.figure--16x9{aspect-ratio:16/9}
.figure--4x3{aspect-ratio:4/3}
.figure--1x1{aspect-ratio:1/1}
.figure--21x9{aspect-ratio:21/9}
.figure--empty{display:grid;place-items:center;color:var(--muted);font-size:13px;letter-spacing:.06em}
.figure__cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:14px 16px;font-size:13px;color:var(--white);
  background:linear-gradient(180deg,transparent,rgba(6,11,28,.94));
}

/* ---------- 13. 标签页 / 折叠 / 复制 ---------- */
.tabs{
  display:flex;gap:6px;overflow-x:auto;
  border-bottom:1px solid var(--line);
  scrollbar-width:thin;
}
.tab{
  position:relative;flex:0 0 auto;
  height:46px;padding:0 18px;border-radius:8px 8px 0 0;
  color:var(--muted);font-size:15px;font-weight:600;letter-spacing:.01em;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.tab:hover{color:var(--white);background:rgba(35,229,213,.05)}
.tab[aria-selected="true"]{color:var(--white)}
.tab[aria-selected="true"]::after{
  content:"";position:absolute;left:8px;right:8px;bottom:-1px;height:2px;
  border-radius:2px;background:var(--cyan);
  box-shadow:0 0 12px rgba(35,229,213,.7);
}
.tabpanel{padding-top:24px}
.tabpanel[hidden]{display:none}

.accordion{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:rgba(12,20,48,.6);
}
.accordion__item + .accordion__item{border-top:1px solid var(--line)}
.accordion__btn{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:18px 20px;text-align:left;
  color:var(--white);font-size:16px;font-weight:600;line-height:1.5;
  transition:background .2s var(--ease);
}
.accordion__btn:hover{background:rgba(35,229,213,.06)}
.accordion__btn::after{
  content:"";flex:0 0 auto;margin-left:auto;
  width:10px;height:10px;
  border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(45deg);
  transition:transform .26s var(--ease);
}
.accordion__btn[aria-expanded="true"]::after{transform:rotate(225deg)}
.accordion__panel{padding:0 20px 20px;font-size:15px;color:var(--muted);line-height:1.8}
.accordion__panel[data-open]{display:block}

.copy-chip{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:9px 14px;border:1px solid var(--line);border-radius:9px;
  background:rgba(19,30,61,.75);color:var(--white);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.01em;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.copy-chip:hover{border-color:rgba(35,229,213,.6);color:var(--cyan);background:rgba(35,229,213,.08)}
.copy-chip__flag{
  font-family:var(--font-body);font-size:11px;color:var(--cyan);
  opacity:0;transform:translateX(-4px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.copy-chip[data-copied] .copy-chip__flag{opacity:1;transform:none}

/* ---------- 14. 进入视口显现 ---------- */
.reveal{transition:opacity .34s var(--ease),transform .34s var(--ease)}
.reveal.is-pending{opacity:0;transform:translateY(16px)}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#060B1C 0%,#0C1430 58%,#08182B 100%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;left:12%;right:-12%;bottom:-46%;height:340px;
  pointer-events:none;
  background:radial-gradient(closest-side,rgba(35,229,213,.14),transparent 72%);
}
.footer-inner{
  position:relative;z-index:1;
  max-width:var(--shell);margin:0 auto;padding:64px var(--pad) 44px;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,1.8fr) minmax(0,1.1fr);
  gap:clamp(32px,4vw,64px);
}
.footer-brand__logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--white)}
.footer-brand__name{font-family:var(--font-display);font-size:18px;font-weight:900;letter-spacing:-.01em;transform:skewX(-3deg)}
.footer-brand__line{margin-top:16px;font-size:15px;line-height:1.7;color:var(--white);max-width:34ch}
.footer-brand__local{margin-top:12px;font-size:14px;line-height:1.75;color:var(--muted);max-width:42ch}
.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.footer-group__title{
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
}
.footer-group__list{display:grid;gap:10px}
.footer-group__list a{
  display:inline-block;color:var(--muted);font-size:15px;text-decoration:none;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-group__list a:hover{color:var(--white);transform:translateX(3px)}
.footer-contact__list{display:grid;gap:12px;margin-bottom:16px}
.footer-contact__addr{font-size:14px;line-height:1.7;color:var(--white);max-width:28ch}
.footer-contact__note{margin-top:8px;font-size:13px;line-height:1.7;color:var(--muted);max-width:34ch}
.footer-base{
  position:relative;z-index:1;
  max-width:var(--shell);margin:0 auto;
  padding:22px var(--pad) 34px;
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.footer-base__copy,.footer-base__icp{margin:0;font-family:var(--font-mono);letter-spacing:.02em}

/* ---------- 16. 断点 ---------- */
@media (max-width:1024px){
  :root{--rail-w:0px;--pad:24px}
  body{padding-left:0}
  .brand-rail{
    inset:0 0 auto 0;width:100%;height:3px;z-index:80;
    display:block;padding:0;border:0;background:transparent;
    pointer-events:none;
  }
  .brand-rail__mark,.rail-ticks,.rail-progress__value{display:none}
  .rail-meter{position:absolute;inset:0;display:block;gap:0}
  .rail-progress{position:absolute;inset:0;width:100%;height:3px;border-radius:0;background:rgba(38,50,79,.45)}
  .rail-progress__bar{
    left:0;top:0;bottom:auto;height:100%;width:var(--p,0%);
    border-radius:0;background:linear-gradient(90deg,var(--cyan),var(--orange));
  }
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;left:auto;
    width:min(330px,86vw);margin:0;
    padding:96px 22px 36px;
    background:linear-gradient(210deg,#0C1430 0%,#060B1C 68%,#0A2B33 100%);
    border-left:1px solid var(--line);
    transform:translateX(104%);
    transition:transform .34s var(--ease);
    z-index:72;overflow-y:auto;
  }
  .site-nav[data-open]{transform:translateX(0)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;counter-reset:navidx}
  .site-nav__list li + li{border-top:1px solid rgba(38,50,79,.7)}
  .site-nav__link{
    width:100%;height:56px;padding:0 8px;border-radius:0;
    justify-content:space-between;font-size:17px;color:var(--white);
  }
  .site-nav__link::before{
    content:"0" counter(navidx);
    counter-increment:navidx;
    order:2;
    font-family:var(--font-mono);font-size:11px;color:var(--line);
  }
  .site-nav__link::after{left:8px;right:auto;bottom:16px;width:24px}
  .nav-scrim{
    display:block;position:fixed;inset:0;z-index:66;
    background:rgba(4,8,20,.74);
    opacity:0;pointer-events:none;
    transition:opacity .3s var(--ease);
  }
  .nav-scrim[data-open]{opacity:1;pointer-events:auto}
  .footer-inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:760px){
  :root{--pad:18px}
  body{font-size:16px}
  .header-main{height:62px;gap:12px}
  .brand__name{font-size:17px}
  .header-top__line{font-size:12px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-inner{padding-top:48px}
}

@media (max-width:520px){
  .grid-12{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .header-top{height:36px}
  .header-top__line{display:none}
  .header-top{justify-content:flex-end}
  .footer-base{flex-direction:column;gap:8px}
  .btn{height:44px;padding:0 18px;font-size:14px}
}

/* ---------- 17. 降级动效 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal,.reveal.is-pending{opacity:1;transform:none}
  .display-title,.h2,.brand__name,.footer-brand__name{transform:none}
}