/* =========================================================
   财神捕鱼局 · 共享样式表 /assets/site.css
   深海墨蓝体系 · 展览画册式档案布局 · 锐利直角精密网格
   ========================================================= */

/* ---------- 变量 ---------- */
:root{
  --ink-900:#061826;
  --ink-800:#0B2438;
  --ink-700:#12324B;
  --ink-600:#1D4A66;
  --gold:#C9A227;
  --gold-light:#F0D07A;
  --brass:#8A6E1F;
  --coral:#E2603F;
  --jade:#2F9E8F;
  --mist:#EAF1F6;
  --paper:#F4F1E8;
  --black:#0A0F14;

  --bg:var(--ink-900);
  --bg-alt:var(--ink-800);
  --surface:var(--ink-700);
  --line:rgba(29,74,102,.55);
  --line-strong:var(--ink-600);
  --text:var(--mist);
  --text-dim:rgba(234,241,246,.66);
  --text-mute:rgba(234,241,246,.44);

  --shell:1280px;
  --gutter:clamp(16px,4vw,40px);
  --gap:clamp(16px,2.4vw,28px);

  --font-display:"Songti SC","Source Han Serif SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"SF Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;

  --step--2:12px;
  --step--1:14px;
  --step-0:17px;
  --step-1:22px;
  --step-2:32px;
  --step-3:44px;
  --step-4:56px;

  --dur:.24s;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{
  margin:0;
  min-height:100%;
  background-color:var(--bg);
  background-image:
    repeating-linear-gradient(0deg,rgba(29,74,102,.16) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(90deg,rgba(29,74,102,.16) 0 1px,transparent 1px 72px);
  color:var(--text);
  font-family:var(--font-body);
  font-size:var(--step-0);
  line-height:1.9;
  letter-spacing:.01em;
  text-align:left;
  word-break:break-word;
}
body::after{
  content:"";position:fixed;inset:0;z-index:70;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(234,241,246,.022) 0 1px,transparent 1px 4px);
}
img,svg,video{max-width:100%;display:block}
figure{margin:0}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:-.02em;
  line-height:1.28;
  margin:0 0 .5em;
  color:var(--mist);
}
h1{font-size:clamp(34px,5.4vw,var(--step-4))}
h2{font-size:clamp(24px,3.2vw,var(--step-2))}
h3{font-size:clamp(19px,2.2vw,var(--step-1))}
p{margin:0 0 1.1em}
a{color:var(--gold-light);text-decoration:none}
a:hover{color:var(--gold-light)}
button{font:inherit;color:inherit}
ul,ol{padding-left:1.15em}
:focus-visible{outline:2px solid var(--gold-light);outline-offset:2px}
::selection{background:rgba(201,162,39,.32);color:var(--mist)}

/* ---------- 容器与节奏 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,7vw,88px)}
.section--tight{padding-block:clamp(24px,4vw,48px)}
.prose{max-width:38em;font-size:var(--step-0);line-height:1.9;color:var(--text-dim)}
.prose strong{color:var(--mist)}
.prose h2,.prose h3{margin-top:1.6em;color:var(--mist)}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:var(--step--2);
  letter-spacing:.2em;color:var(--gold);margin-bottom:12px;
}
.rule{height:1px;background:var(--line-strong);border:0;margin:clamp(24px,4vw,48px) 0}
.rule--gold{background:linear-gradient(90deg,var(--gold),rgba(226,96,63,.45),transparent)}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:var(--gap)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:980px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .grid--3,.grid--2,.grid--12{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border:1px solid transparent;border-radius:0;
  font-family:var(--font-body);font-size:var(--step--1);letter-spacing:.08em;
  text-decoration:none;cursor:pointer;background:none;color:var(--text);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn--gold{background:var(--gold);border-color:var(--gold);color:var(--black);font-weight:600}
.btn--gold:hover,.btn--gold:focus-visible{background:var(--gold-light);border-color:var(--gold-light);color:var(--black)}
.btn--line{border-color:var(--line-strong);color:var(--mist)}
.btn--line:hover,.btn--line:focus-visible{border-color:var(--gold-light);color:var(--gold-light);background:rgba(201,162,39,.08)}
.btn--sm{padding:7px 13px;font-size:13px}

/* ---------- 顶部命令栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(6,24,38,.95);
  border-bottom:1px solid var(--line-strong);
  transition:border-color var(--dur) var(--ease);
}
.site-header[data-scrolled="true"]{border-bottom-color:var(--brass)}
.skip-link{
  position:absolute;left:12px;top:-52px;z-index:80;
  background:var(--gold);color:var(--black);padding:8px 14px;
  font-size:var(--step--1);text-decoration:none;
  transition:top .18s ease;
}
.skip-link:focus{top:8px}
.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;background:transparent}
.scroll-progress__fill{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--brass),var(--gold) 55%,var(--coral));
}
@media (prefers-reduced-motion:no-preference){
  .scroll-progress__fill{transition:transform .12s linear}
}
.cmdbar__inner{
  display:flex;align-items:center;gap:14px;
  max-width:var(--shell);margin:0 auto;padding:10px var(--gutter);min-height:64px;
}
@media (prefers-reduced-motion:no-preference){
  .cmdbar__inner{transition:min-height .2s var(--ease)}
}
.site-header[data-scrolled="true"] .cmdbar__inner{min-height:56px}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--mist);text-decoration:none}
.brand__mark{
  width:34px;height:34px;display:grid;place-items:center;flex:0 0 auto;
  border:1px solid var(--brass);color:var(--gold);
  font-family:var(--font-display);font-size:18px;line-height:1;
  background:linear-gradient(135deg,rgba(201,162,39,.22),rgba(226,96,63,.12));
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.brand:hover .brand__mark{border-color:var(--gold-light);color:var(--gold-light)}
.brand__text{display:flex;flex-direction:column;gap:1px}
.brand__name{font-family:var(--font-display);font-size:20px;font-weight:600;letter-spacing:.08em;line-height:1.25;color:var(--mist)}
.brand__tag{font-size:11px;letter-spacing:.16em;color:var(--text-mute);line-height:1.4}
.brand__mark,.brand__name,.brand__tag{display:block}

.cmdbar__meta{margin:0 0 0 auto;display:flex;align-items:center;gap:14px}
.ver-badge{
  display:inline-flex;align-items:baseline;gap:6px;padding:2px 9px 3px;
  border:1px solid var(--brass);background:rgba(138,110,31,.16);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  clip-path:polygon(7px 0,100% 0,100% 100%,0 100%,0 7px);
}
.ver-badge__key{color:rgba(240,208,122,.78)}
.ver-badge__val{color:var(--coral);font-size:13px}
.cmdbar__hint{font-size:12px;letter-spacing:.06em;color:var(--text-mute);white-space:nowrap}
.cmdbar__actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 11px;border:1px solid var(--line-strong);background:transparent;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--text);
  cursor:pointer;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--gold-light);color:var(--gold-light)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--gold-light)}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--gold-light)}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
@media (prefers-reduced-motion:no-preference){
  .nav-toggle__bars,
  .nav-toggle__bars::before,
  .nav-toggle__bars::after{transition:transform .2s var(--ease),background .2s var(--ease)}
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- 编号索引导航 ---------- */
.site-nav{
  display:flex;align-items:stretch;gap:16px;
  max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);
  border-top:1px solid var(--line);
  background:rgba(11,36,56,.55);
}
.site-nav__list{
  display:flex;flex-wrap:wrap;align-items:stretch;gap:2px;
  flex:1 1 auto;list-style:none;margin:0;padding:0;
}
.site-nav__item{display:flex}
.site-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:8px;
  padding:13px 16px;color:var(--text-dim);text-decoration:none;
  font-size:15px;letter-spacing:.03em;
  transition:color var(--dur) var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:5px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:0 50%;
}
@media (prefers-reduced-motion:no-preference){
  .site-nav__link::after{transition:transform var(--dur) var(--ease)}
}
.site-nav__link:hover,
.site-nav__link:focus-visible{color:var(--gold-light)}
.site-nav__link:hover::after,
.site-nav__link:focus-visible::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--gold-light)}
.site-nav__link[aria-current="page"]::before{
  content:"";position:absolute;left:0;top:50%;width:2px;height:16px;margin-top:-8px;
  background:var(--jade);
}
.site-nav__num{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--brass)}
.site-nav__link:hover .site-nav__num,
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--gold)}
.site-nav__note{
  display:flex;align-items:center;gap:8px;margin:0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--text-mute);white-space:nowrap;
}
.site-nav__dot{display:inline-block;width:6px;height:6px;background:var(--jade)}
.site-nav__cta{display:none}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,8vw,120px);
  background:var(--ink-800);
  border-top:1px solid var(--line-strong);
  color:var(--text);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:min(340px,62%);height:1px;
  background:linear-gradient(90deg,var(--gold),rgba(226,96,63,.5),transparent);
}
.site-footer__inner{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.7fr);
  gap:clamp(24px,5vw,64px);
  max-width:var(--shell);margin:0 auto;
  padding:clamp(32px,6vw,64px) var(--gutter) clamp(24px,4vw,44px);
}
.footer-brand__name{margin:0 0 6px;font-family:var(--font-display);font-size:clamp(22px,2.4vw,28px);letter-spacing:.1em}
.footer-brand__tag{margin:0 0 16px;font-size:12px;letter-spacing:.18em;color:var(--text-mute)}
.footer-brand__ver{
  display:inline-flex;align-items:baseline;gap:8px;margin:0 0 16px;
  padding:3px 10px;border:1px solid var(--brass);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--gold);
}
.footer-brand__ver-val{color:var(--coral);font-size:13px}
.footer-brand__note{margin:0;max-width:24em;font-size:13px;line-height:1.8;color:var(--text-dim)}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,36px)}
.footer-col__title{
  margin:0 0 14px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.2em;color:var(--gold);
}
.footer-col__title::before{content:"";display:block;width:20px;height:1px;background:var(--gold);margin-bottom:9px}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-link{
  position:relative;display:inline-block;
  color:var(--mist);opacity:.78;font-size:var(--step--1);line-height:1.7;
  transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.footer-link::after{
  content:"";position:absolute;left:0;right:0;bottom:1px;height:1px;
  background:var(--gold-light);transform:scaleX(0);transform-origin:0 50%;
}
@media (prefers-reduced-motion:no-preference){
  .footer-link::after{transition:transform var(--dur) var(--ease)}
}
.footer-link:hover,.footer-link:focus-visible{opacity:1;color:var(--gold-light)}
.footer-link:hover::after,.footer-link:focus-visible::after{transform:scaleX(1)}

.site-footer__band{border-top:1px solid var(--line);background:rgba(6,24,38,.55)}
.site-footer__band-inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px 40px;
  max-width:var(--shell);margin:0 auto;padding:20px var(--gutter);
}
.footer-contact{display:flex;flex-wrap:wrap;gap:10px 28px;margin:0}
.footer-contact__item{display:flex;align-items:baseline;gap:9px;margin:0;font-size:13px;color:var(--text-dim)}
.footer-contact__key{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--brass);
  border:1px solid var(--line-strong);padding:1px 6px;
}
.footer-contact__val{color:var(--mist);opacity:.86}
.footer-service{margin:0;max-width:46em;font-size:13px;color:var(--text-mute)}
.footer-legal{border-top:1px solid var(--line-strong)}
.footer-legal__inner{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;
  max-width:var(--shell);margin:0 auto;padding:16px var(--gutter) 22px;
}
.footer-legal__icp{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--gold)}
.footer-legal__copy{margin:0;font-size:12px;color:var(--text-mute)}
.footer-legal__mark{margin-left:auto}

/* ---------- 准星装饰 ---------- */
.crosshair{position:relative;display:inline-block;width:24px;height:24px;border:1px solid var(--line)}
.crosshair::before,
.crosshair::after{content:"";position:absolute;background:var(--brass)}
.crosshair::before{left:50%;top:0;width:1px;height:100%;transform:translateX(-50%)}
.crosshair::after{top:50%;left:0;width:100%;height:1px;transform:translateY(-50%)}

/* ---------- 章节 ---------- */
.chapter{position:relative;padding-top:26px;border-top:1px solid var(--line)}
.chapter__num{
  display:block;margin-bottom:10px;
  font-family:var(--font-mono);font-size:var(--step--2);
  letter-spacing:.14em;color:var(--gold);
}
.chapter__num::before{
  content:"";display:inline-block;width:28px;height:1px;
  margin-right:10px;vertical-align:middle;background:var(--gold);
}
.chapter[data-active] .chapter__num{color:var(--gold-light)}
.chapter[data-active] .chapter__num::before{background:var(--gold-light)}
.section-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:16px;margin-bottom:22px}
.section-head__title{margin:0;font-size:clamp(24px,3.2vw,var(--step-2))}
.section-head__aside{margin-left:auto;font-family:var(--font-mono);font-size:var(--step--2);color:var(--text-mute)}

/* ---------- 档案卡 ---------- */
.card{
  position:relative;padding:24px 20px 20px;
  background:var(--surface);border:1px solid var(--line-strong);
  transition:border-color var(--dur) var(--ease);
}
.card:hover,.card:focus-within{border-color:var(--gold-light)}
.card__tag{
  position:absolute;top:-1px;right:-1px;
  padding:3px 9px;background:var(--ink-600);color:var(--gold-light);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  clip-path:polygon(8px 0,100% 0,100% 100%,0 100%);
}
.card__num{display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--brass);margin-bottom:8px}
.card__title{margin:.1em 0 .45em;font-size:var(--step-1)}
.card__body{margin:0;font-size:var(--step--1);line-height:1.85;color:var(--text-dim)}
.card__meta{margin:14px 0 0;font-family:var(--font-mono);font-size:var(--step--2);color:var(--text-mute)}
.card-grid{display:grid;gap:1px;background:var(--brass);border:1px solid var(--brass);grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card-grid > .card{border:0;border-radius:0}
.card-grid > .card:hover{border:0;box-shadow:inset 0 0 0 1px var(--gold-light)}

/* ---------- 标签与状态 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:3px 9px;
  border:1px solid var(--line-strong);border-radius:0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--text-dim);
}
.tag--gold{border-color:var(--brass);color:var(--gold-light)}
.tag--jade{border-color:var(--jade);color:var(--jade)}
.tag--coral{border-color:var(--coral);color:var(--coral)}
.state--saved{color:var(--jade)}
.dot{display:inline-block;width:6px;height:6px;background:var(--jade)}

/* ---------- 数据表 ---------- */
.data-table{width:100%;border-collapse:collapse;font-size:var(--step--1)}
.data-table caption{caption-side:top;text-align:left;font-family:var(--font-mono);font-size:var(--step--2);letter-spacing:.14em;color:var(--gold);padding-bottom:10px}
.data-table th{
  text-align:left;padding:10px 12px;border-bottom:1px solid var(--brass);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--gold);font-weight:400;
}
.data-table td{padding:11px 12px;border-bottom:1px solid var(--line);color:var(--text-dim)}
.data-table tbody tr:nth-child(odd){background:var(--surface)}
.data-table .num{font-family:var(--font-mono);font-size:15px;color:var(--gold-light)}

/* ---------- 折叠面板 ---------- */
.panel{border:1px solid var(--line-strong);background:rgba(18,50,75,.45);margin-bottom:10px}
.panel__head{
  display:flex;align-items:baseline;gap:12px;padding:14px 18px;
  cursor:pointer;list-style:none;color:var(--text);
  font-size:var(--step-0);letter-spacing:.02em;
}
.panel__head::-webkit-details-marker{display:none}
.panel__head::after{content:"＋";margin-left:auto;font-family:var(--font-mono);color:var(--gold)}
.panel[open] .panel__head::after{content:"－"}
.panel[open] .panel__head{color:var(--gold-light);border-bottom:1px solid var(--line)}
.panel__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--brass)}
.panel__body{padding:16px 18px 18px;font-size:var(--step--1);line-height:1.9;color:var(--text-dim)}
@media (prefers-reduced-motion:no-preference){
  .panel[open] .panel__body{animation:panelIn .24s var(--ease)}
}
@keyframes panelIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:var(--step--1);color:var(--text-mute)}
.crumbs a{color:var(--text-dim);border-bottom:1px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.crumbs a:hover,.crumbs a:focus-visible{color:var(--gold-light);border-bottom-color:var(--gold-light)}
.crumbs__sep{color:var(--brass)}
.crumbs [aria-current="page"]{color:var(--gold-light)}

/* ---------- 图片容器（页面阶段使用） ---------- */
.media{position:relative;border:1px solid var(--line-strong);background:var(--surface);overflow:hidden}
.media__frame{
  position:relative;aspect-ratio:16/9;display:grid;place-items:center;
  background-image:
    radial-gradient(circle at 30% 22%,rgba(29,74,102,.95),rgba(6,24,38,.96)),
    repeating-linear-gradient(90deg,rgba(201,162,39,.07) 0 1px,transparent 1px 48px);
}
.media__frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(234,241,246,.045) 0 1px,transparent 1px 3px);
}
.media__img{width:100%;height:100%;object-fit:cover}
.media__caption{
  margin:0;padding:9px 12px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:var(--step--2);letter-spacing:.06em;color:var(--text-mute);
}
.media__badge{
  position:absolute;left:0;top:0;z-index:2;padding:4px 10px;
  background:rgba(6,24,38,.86);border-right:1px solid var(--brass);border-bottom:1px solid var(--brass);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--gold);
}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:3/4}
.media--square .media__frame{aspect-ratio:1/1}

/* ---------- 滚动显现 ---------- */
.js [data-reveal]{opacity:1}
@media (prefers-reduced-motion:no-preference){
  .js [data-reveal]{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .js [data-reveal][data-visible="true"]{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .cmdbar__hint{display:none}
  .site-nav__note{display:none}
  .site-nav__link{padding:13px 12px;font-size:14px}
}
@media (max-width:900px){
  .cmdbar__actions .btn--line{display:none}
  .site-footer__inner{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
}
@media (max-width:860px){
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;flex-direction:column;gap:0;padding:0;background:var(--ink-800)}
  .site-nav[data-open]{display:flex;animation:navDrop .22s var(--ease)}
  .site-nav__list{flex-direction:column;width:100%;gap:0}
  .site-nav__item{width:100%;border-bottom:1px solid var(--line)}
  .site-nav__link{width:100%;padding:14px var(--gutter);font-size:15px}
  .site-nav__link::after{left:var(--gutter);right:auto;width:44px}
  .site-nav__link[aria-current="page"]::before{top:0;left:0;height:100%;width:3px;margin-top:0}
  .site-nav__note{display:flex;padding:12px var(--gutter);white-space:normal;border-bottom:1px solid var(--line)}
  .site-nav__cta{display:flex;flex-direction:column;gap:10px;padding:16px var(--gutter) 20px}
  .site-nav__cta .btn{width:100%}
}
@keyframes navDrop{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media (max-width:560px){
  .cmdbar__actions{display:none}
  .brand__tag{display:none}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .site-footer__band-inner{flex-direction:column}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .site-nav[data-open]{animation:none}
  .js [data-reveal]{opacity:1;transform:none}
}