/* =========================================================
   开博体育的方式 · 全站共享样式  /assets/site.css
   蓝图网格 · 珠宝色分区 · 纸张叠层
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0}
ul,ol{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;cursor:pointer}
i,em{font-style:normal}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 2. 变量 ---------- */
:root{
  --deep:#0A1D19;
  --carbon:#101413;
  --violet:#241C42;
  --wine:#4A1420;
  --slate:#16302B;
  --cyan:#3DF2D2;
  --cyan-ink:#06211C;
  --orange:#FF6B2C;
  --paper:#F3F6F2;
  --body-text:#DCE5E1;
  --mist:#96A5A0;
  --copper:#C9A24B;
  --line:#2A3B36;
  --line-soft:rgba(42,59,54,.5);
  --shell:1320px;
  --gutter:clamp(18px,4vw,40px);
  --bar-h:56px;
  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Alibaba PuHuiTi Heavy","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:Inter,"Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- 3. 基础 ---------- */
body{
  min-height:100vh;
  background-color:var(--deep);
  background-image:
    linear-gradient(to right,var(--line-soft) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line-soft) 1px,transparent 1px);
  background-size:96px 96px,96px 96px;
  color:var(--body-text);
  font-family:var(--font-body);
  font-size:clamp(16px,1.02vw,17.5px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:900px){body{background-attachment:fixed}}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.1;letter-spacing:-.015em;color:var(--paper)}
h1{font-size:clamp(2.6rem,6vw,5.2rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.15rem,2vw,1.5rem)}
::selection{background:var(--cyan);color:var(--cyan-ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
[id]{scroll-margin-top:calc(var(--bar-h) + 18px)}

.visually-hidden{position:absolute !important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.mono{font-family:var(--font-mono);font-size:.92em;font-variant-numeric:tabular-nums}

.skip-link{position:fixed;top:-120px;left:16px;z-index:200;background:var(--cyan);color:var(--cyan-ink);font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;padding:10px 18px;border-radius:var(--radius);transition:top .18s var(--ease)}
.skip-link:focus{top:14px}

/* ---------- 4. 布局骨架 ---------- */
.shell{width:min(var(--shell),calc(100% - var(--gutter) * 2));margin-inline:auto}
.section{position:relative;padding-block:clamp(56px,8vw,112px)}
.section__head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:clamp(16px,3vw,48px);align-items:end;margin-bottom:clamp(26px,3.4vw,44px);padding-top:18px;border-top:1px solid var(--line)}
.section__num{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.22em;color:var(--copper);margin-bottom:10px}
.section__title{margin-bottom:6px}
.section__lead{font-size:15px;line-height:1.8;color:var(--mist)}

.cols{display:grid;gap:clamp(18px,2.4vw,32px)}
.cols--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.cols--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols--split{grid-template-columns:minmax(200px,240px) minmax(0,1fr)}
.stack > * + *{margin-top:16px}
.rule{height:1px;background:var(--line);position:relative}
.rule::after{content:"";position:absolute;right:0;top:-3px;width:1px;height:7px;background:var(--copper)}

.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;color:var(--mist)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--copper)}
.anno{writing-mode:vertical-rl;font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--mist)}
.anno--copper{color:var(--copper)}

.zoning{position:relative;background:var(--violet);border-block:1px solid var(--line)}
.zoning--wine{background:var(--wine)}
.zoning--slate{background:var(--slate)}

/* ---------- 5. 命令栏 ---------- */
.cmd-bar{
  position:sticky;top:0;z-index:120;
  background:rgba(10,29,25,.94);
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
@supports (backdrop-filter:blur(4px)){
  .cmd-bar{background:rgba(10,29,25,.82);backdrop-filter:blur(12px) saturate(1.2)}
}
.read-progress{position:absolute;left:0;right:0;top:0;height:3px;pointer-events:none;overflow:hidden}
.read-progress::after{content:"";display:block;height:100%;width:calc(var(--progress,0) * 100%);background:linear-gradient(90deg,var(--cyan),var(--orange));transition:width .12s linear}

.cmd-bar__inner{
  display:grid;
  grid-template-columns:auto auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(10px,1.6vw,26px);
  height:var(--bar-h);
  transition:height .2s var(--ease);
}
.cmd-bar[data-shrink] .cmd-bar__inner{height:46px}

.brand{display:inline-flex;align-items:baseline;gap:10px;white-space:nowrap}
.brand__mark{font-family:var(--font-display);font-weight:900;font-size:clamp(19px,1.6vw,24px);letter-spacing:-.02em;color:var(--paper);transition:color .18s var(--ease)}
.brand__sub{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--mist)}
.brand:hover .brand__mark{color:var(--cyan)}
.brand--foot{flex-direction:column;align-items:flex-start;gap:6px}

/* 导航 */
.nav__list{display:flex;align-items:center;gap:clamp(2px,.9vw,14px);counter-reset:navItem}
.nav__item{display:flex;counter-increment:navItem}
.nav__link{position:relative;display:inline-flex;align-items:baseline;gap:6px;padding:8px 6px;font-size:13.5px;letter-spacing:.02em;color:var(--mist);transition:color .18s var(--ease)}
.nav__link::before{content:"0" counter(navItem);font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;color:var(--line)}
.nav__link::after{content:"";position:absolute;left:6px;right:6px;bottom:1px;height:1px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease)}
.nav__link:hover{color:var(--paper)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--cyan)}
.nav__link[aria-current="page"]::before{color:var(--cyan)}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange)}

/* 检索 */
.cmd-search{position:relative;min-width:0}
.cmd-search__field{display:flex;align-items:center;gap:8px;height:34px;padding:0 10px;background:var(--carbon);border:1px solid var(--line);border-radius:var(--radius);transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.cmd-search__field:focus-within{border-color:var(--cyan);box-shadow:0 0 0 1px rgba(61,242,210,.32)}
.cmd-search__input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:13.5px;color:var(--paper)}
.cmd-search__input::placeholder{color:#6E7F7A}
.cmd-search__input::-webkit-search-cancel-button{display:none}
.cmd-search__kbd{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:var(--mist);border:1px solid var(--line);border-radius:var(--radius);padding:2px 6px;white-space:nowrap}
.cmd-search__panel{position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:60;padding:6px;background:var(--carbon);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 28px 60px rgba(0,0,0,.6);max-height:342px;overflow:auto}
.cmd-search__item + .cmd-search__item{border-top:1px dashed rgba(42,59,54,.75)}
.cmd-search__link{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 10px;font-size:13.5px;color:var(--paper);border-radius:var(--radius);transition:background .16s var(--ease),color .16s var(--ease)}
.cmd-search__link:hover,.cmd-search__link:focus-visible{background:var(--slate);color:var(--cyan)}
.cmd-search__tag{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--copper);white-space:nowrap}
.cmd-search__empty{padding:12px 10px;font-size:13px;color:var(--mist)}
.cmd-search__toggle{display:none;height:34px;padding:0 10px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--mist);transition:color .18s var(--ease),border-color .18s var(--ease)}
.cmd-search__toggle:hover{color:var(--cyan);border-color:var(--cyan)}
.cmd-search__toggle[aria-expanded="true"]{color:var(--cyan);border-color:var(--cyan)}

/* 右侧状态与入口 */
.cmd-bar__tail{display:flex;align-items:center;gap:clamp(8px,1.2vw,16px);justify-self:end}
.status{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--mist);cursor:help}
.status__dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(61,242,210,.16)}
.status[data-season-state="closing"]{color:var(--orange)}
.status[data-season-state="closing"] .status__dot{background:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.18);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:34px;padding:0 16px;border:1px solid var(--line);border-radius:var(--radius);background:transparent;color:var(--paper);font-size:13.5px;letter-spacing:.04em;white-space:nowrap;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--cta{background:var(--orange);border-color:var(--orange);color:#1A0C05;font-weight:600}
.btn--cta:hover{background:var(--cyan);border-color:var(--cyan);color:var(--cyan-ink)}
.btn--ghost{background:var(--slate);border-color:var(--line)}

.nav-toggle{display:none;align-items:center;gap:8px;height:34px;padding:0 10px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--mist);transition:color .18s var(--ease),border-color .18s var(--ease)}
.nav-toggle:hover{color:var(--cyan);border-color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;transition:transform .18s var(--ease),top .18s var(--ease),bottom .18s var(--ease)}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"]{color:var(--cyan);border-color:var(--cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{bottom:4.5px;transform:rotate(-45deg)}

/* ---------- 6. 页脚 ---------- */
.site-foot{position:relative;margin-top:clamp(64px,9vw,120px);background:var(--carbon);border-top:1px solid var(--line)}
.site-foot::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--copper) 30%,var(--cyan) 70%,transparent);opacity:.55}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:clamp(24px,4vw,56px);padding:clamp(40px,6vw,72px) 0 clamp(26px,3vw,40px)}
.foot-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.foot-note{max-width:46ch;font-size:13.5px;line-height:1.8;color:var(--mist)}
.foot-search{display:inline-flex;align-items:center;gap:10px;height:36px;padding:0 14px;border:1px dashed var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--mist);transition:color .18s var(--ease),border-color .18s var(--ease)}
.foot-search:hover{color:var(--cyan);border-color:var(--cyan)}
.foot-search__dot{display:block;width:7px;height:7px;background:var(--cyan)}
.foot-meta{font-size:11.5px;color:var(--copper);letter-spacing:.08em}
.foot-col__title{padding-top:12px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.2em;color:var(--mist);margin-bottom:14px}
.foot-list{display:flex;flex-direction:column}
.foot-list__item{display:block}
.foot-list--contact{margin-top:16px;gap:4px}
.foot-link{display:inline-flex;align-items:center;gap:8px;padding:5px 0;font-size:14px;color:var(--mist);transition:color .18s var(--ease)}
.foot-link::before{content:"";width:8px;height:1px;background:var(--line);transition:width .18s var(--ease),background .18s var(--ease)}
.foot-link:hover{color:var(--cyan)}
.foot-link:hover::before{width:16px;background:var(--cyan)}
.foot-contact{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:4px 0;font-size:13.5px;color:var(--mist)}
.foot-contact__k{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--copper);min-width:34px}
.foot-contact__v{color:var(--paper);line-height:1.7;word-break:break-word}
.foot-copy{padding:3px 8px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;color:var(--mist);transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease)}
.foot-copy:hover{color:var(--cyan);border-color:var(--cyan)}
.foot-copy.is-copied{background:var(--cyan);border-color:var(--cyan);color:var(--cyan-ink)}
.foot-legal{display:flex;flex-wrap:wrap;align-items:center;gap:8px 28px;padding:18px 0 28px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--mist)}
.foot-legal__item--note{color:var(--copper)}

/* ---------- 7. 通用组件 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:clamp(18px,3vw,30px);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;color:var(--mist)}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb__sep{color:var(--line)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

.panel{position:relative;padding:clamp(18px,2.4vw,28px);background:var(--carbon);border:1px solid var(--line);border-radius:var(--radius)}
.panel--slate{background:var(--slate)}

.card{position:relative;padding:clamp(20px,2.4vw,30px);background:var(--carbon);border:1px solid var(--line);border-radius:var(--radius);transition:transform .2s var(--ease),border-color .2s var(--ease)}
.card::after{content:"";position:absolute;top:0;right:0;width:0;height:0;border-style:solid;border-width:0 18px 18px 0;border-color:transparent rgba(201,162,75,.45) transparent transparent}
.card:hover{transform:translateY(-2px);border-color:rgba(61,242,210,.45)}
.card__index{display:inline-block;font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--copper)}
.card__title{margin:10px 0 8px}
.card__body{font-size:14.5px;line-height:1.8;color:var(--mist)}

.stat{display:flex;flex-direction:column;gap:10px}
.stat__num{display:inline-block;padding-bottom:8px;border-bottom:3px solid var(--cyan);font-family:var(--font-mono);font-weight:700;font-size:clamp(2rem,5vw,3.4rem);line-height:1;color:var(--paper);font-variant-numeric:tabular-nums}
.stat__num--alert{border-bottom-color:var(--orange);color:var(--orange)}
.stat__label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;color:var(--mist)}

.table-wrap{overflow-x:auto;background:var(--carbon);border:1px solid var(--line);border-radius:var(--radius)}
.data-table{font-size:14.5px;min-width:520px}
.data-table caption{padding:14px 16px;text-align:left;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;color:var(--mist)}
.data-table th,.data-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.data-table thead th{background:var(--slate);color:var(--paper);font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.14em}
.data-table tbody tr:nth-child(even){background:var(--slate)}
.data-table tbody tr:hover{background:rgba(61,242,210,.07)}
.data-table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--paper)}
.sort-btn{display:inline-flex;align-items:center;gap:6px;font:inherit;letter-spacing:inherit;color:inherit}
.sort-btn::after{content:"↕";font-size:10px;color:var(--mist)}
.sort-btn[data-dir="asc"]::after{content:"↑";color:var(--cyan)}
.sort-btn[data-dir="desc"]::after{content:"↓";color:var(--cyan)}

.chip{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:transparent;font-size:13px;color:var(--mist);transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}
.chip:hover{color:var(--paper);border-color:var(--mist)}
.chip[aria-pressed="true"]{border-color:var(--orange);background:rgba(255,107,44,.14);color:var(--paper)}

.anchor-rail{position:sticky;top:calc(var(--bar-h) + 24px);display:flex;flex-direction:column;gap:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--mist)}
.anchor-rail__link{display:flex;align-items:center;gap:10px;color:inherit;transition:color .18s var(--ease)}
.anchor-rail__link::before{content:"";width:14px;height:1px;background:var(--line);transition:width .18s var(--ease),background .18s var(--ease)}
.anchor-rail__link:hover{color:var(--paper)}
.anchor-rail__link[aria-current="true"]{color:var(--cyan)}
.anchor-rail__link[aria-current="true"]::before{width:26px;height:2px;background:var(--cyan)}

.prose{max-width:70ch;font-size:17px;line-height:1.85;color:var(--body-text)}
.prose h2{margin:1.6em 0 .6em;font-size:clamp(1.4rem,2.6vw,2rem)}
.prose h3{margin:1.4em 0 .5em}
.prose p + p{margin-top:1.05em}
.prose ul{margin-top:.8em}
.prose li{position:relative;padding-left:20px;margin-top:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1px;background:var(--cyan)}
.prose strong{color:var(--paper)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(61,242,210,.4)}
.prose blockquote{padding-left:18px;border-left:2px solid var(--copper);color:var(--mist)}

.media{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background-color:var(--slate);background-image:linear-gradient(to right,var(--line-soft) 1px,transparent 1px),linear-gradient(to bottom,var(--line-soft) 1px,transparent 1px);background-size:32px 32px,32px 32px}
.media img{width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media__tag{position:absolute;top:10px;left:10px;padding:3px 8px;background:var(--cyan);color:var(--cyan-ink);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;border-radius:var(--radius)}
.media__caption{position:absolute;left:0;right:0;bottom:0;padding:10px 12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--paper);background:linear-gradient(to top,rgba(10,29,25,.94),transparent)}

/* ---------- 8. 载入扫描 ---------- */
@keyframes gridScan{
  from{transform:translateY(-14vh);opacity:.95}
  to{transform:translateY(112vh);opacity:0}
}
body.grid-scan::after{content:"";position:fixed;left:0;right:0;top:0;height:22vh;z-index:90;pointer-events:none;background:linear-gradient(to bottom,transparent,rgba(61,242,210,.08) 55%,rgba(61,242,210,.26) 88%,transparent);animation:gridScan .62s ease-out 1 both}

/* ---------- 9. 响应式 ---------- */
@media (max-width:1180px){
  .nav__link::before{display:none}
  .status__text{display:none}
}
@media (max-width:1080px){
  .foot-grid{grid-template-columns:1fr 1fr}
  .cols--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .cmd-bar__inner{grid-template-columns:auto 1fr auto;gap:10px}
  .brand__sub{display:none}
  .nav{position:absolute;top:100%;left:0;right:0;display:none;background:var(--carbon);border-bottom:1px solid var(--line);padding:4px 0 12px;max-height:calc(100vh - var(--bar-h) - 16px);overflow-y:auto}
  .nav[data-open]{display:block}
  .nav__list{flex-direction:column;align-items:stretch;gap:0}
  .nav__item{display:block}
  .nav__link{display:flex;justify-content:space-between;padding:15px var(--gutter);font-size:15px;border-bottom:1px dashed rgba(42,59,54,.8)}
  .nav__link::before{display:block;font-size:11px}
  .nav__link::after{display:none}
  .nav__link[aria-current="page"]{background:rgba(61,242,210,.07)}

  .cmd-search{position:absolute;top:100%;left:0;right:0;z-index:70;display:none;flex-direction:column;gap:10px;padding:14px var(--gutter) 16px;background:var(--carbon);border-bottom:1px solid var(--line)}
  .cmd-search[data-open]{display:flex}
  .cmd-search__toggle{display:inline-flex;align-items:center;justify-content:center}
  .cmd-search__field{height:40px}
  .cmd-search__panel{position:static;max-height:none;box-shadow:none}
  .cmd-search__link{padding:11px 10px}
  .cols--2,.cols--3,.cols--split{grid-template-columns:minmax(0,1fr)}
  .section__head{grid-template-columns:minmax(0,1fr);align-items:start}
  .anchor-rail{position:static;flex-direction:row;flex-wrap:wrap;gap:14px 20px}
}
@media (max-width:820px){
  .foot-grid{grid-template-columns:1fr}
  .foot-col__title{margin-bottom:10px}
}
@media (max-width:620px){
  .cmd-bar__tail{gap:8px}
  .nav-toggle__text{display:none}
  .status{display:none}
  .btn--cta{padding:0 12px;font-size:12.5px}
  .foot-contact{flex-direction:column;align-items:flex-start;gap:6px}
}

/* ---------- 10. 无障碍动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  body.grid-scan::after{display:none}
  .read-progress::after{transition:none}
}