/* ============================================================
   华体会体育主站 · /assets/site.css
   共享层：reset · 设计令牌 · 中文排版 · 头部 · 页脚 · 基础组件
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,dl,dd,dt,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
summary{list-style:none}
summary::-webkit-details-marker{display:none}

/* ---------- 2. 设计令牌 ---------- */
:root{
  --snow:#F7F5F1;
  --gold:#C8963E;
  --gold-soft:#EBCB8B;
  --white:#FFFFFF;
  --red:#C0392B;
  --navy:#16213E;
  --stone:#6E6A65;
  --clay:#9C5B3B;
  --moss:#4F6B4A;
  --ink:#101014;

  --line:rgba(110,106,101,.28);
  --line-strong:rgba(16,16,20,.16);
  --line-gold:rgba(200,150,62,.45);
  --line-light:rgba(247,245,241,.14);
  --line-light-gold:rgba(235,203,139,.24);

  --shadow-1:0 1px 2px rgba(16,16,20,.05), 0 14px 34px -22px rgba(16,16,20,.34);
  --shadow-2:0 2px 4px rgba(16,16,20,.06), 0 28px 64px -32px rgba(22,33,62,.46);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SF Mono",ui-monospace,Menlo,Consolas,monospace;

  --shell:min(1240px, calc(100% - 40px));
  --gap:clamp(18px,2.4vw,32px);
  --section-gap:clamp(64px,9vw,104px);
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-pill:999px;
  --t-fast:.2s ease;
  --t-mid:.32s cubic-bezier(.22,.8,.3,1);
}

/* ---------- 3. 基础与中文排版 ---------- */
body{
  background:var(--snow);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--gold-soft);color:var(--ink)}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.14;letter-spacing:-.012em}
h1{font-size:clamp(34px,5.2vw,76px);letter-spacing:-.022em;line-height:1.06}
h2{font-size:clamp(26px,3.4vw,44px)}
h3{font-size:clamp(19px,2vw,26px)}
h4{font-size:clamp(17px,1.5vw,20px)}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}

/* ---------- 4. 工具类 ---------- */
.container{width:var(--shell);margin-inline:auto}
.section{position:relative}
.stack{display:grid;gap:var(--gap)}
.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--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:start}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.is-hidden{display:none !important}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-body);font-size:13px;font-weight:500;
  letter-spacing:.12em;text-transform:uppercase;color:var(--clay);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--gold);flex:0 0 auto}
.numeral{
  font-family:var(--font-display);font-weight:200;
  font-size:clamp(72px,12vw,200px);line-height:.82;letter-spacing:-.045em;
  color:var(--gold-soft);font-variant-numeric:tabular-nums;
  pointer-events:none;user-select:none;
}
.numeral--ink{color:rgba(16,16,20,.09)}
.numeral--snow{color:rgba(247,245,241,.16)}
.prose{max-width:68ch;color:rgba(16,16,20,.82)}
.prose p + p{margin-top:1.2em}
.prose h3{margin-top:1.6em;margin-bottom:.55em;color:var(--ink)}
.prose ul{display:grid;gap:.55em;margin-top:.9em}
.prose li{position:relative;padding-left:18px}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1px;background:var(--gold)}
.prose a{color:var(--clay);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--gold)}
.prose figure{margin-top:1.6em}

/* ---------- 5. 按钮 · 标签 · 筛选 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:40px;padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-size:14px;font-weight:500;letter-spacing:.04em;
  white-space:nowrap;cursor:pointer;
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast),transform var(--t-fast),box-shadow var(--t-fast);
}
.btn:active{transform:translateY(1px)}
.btn--gold{background:var(--gold);color:#1B1305;border-color:var(--gold);box-shadow:0 10px 24px -16px rgba(200,150,62,.9)}
.btn--gold:hover{background:#B3832F;border-color:#B3832F;color:#150E03}
.btn--ghost{background:rgba(255,255,255,.6);color:var(--ink);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--line-gold);color:var(--clay);background:rgba(200,150,62,.1)}
.btn--navy{background:var(--navy);color:var(--snow);border-color:var(--navy)}
.btn--navy:hover{background:#1E2C52;border-color:#1E2C52}
.btn--live{background:var(--red);color:#FFF6F4;border-color:var(--red)}
.btn--live:hover{background:#A62F22;border-color:#A62F22}
.btn--sm{min-height:34px;padding:6px 14px;font-size:13px}
.btn--block{width:100%}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.08em;
  padding:3px 10px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--stone);background:rgba(255,255,255,.7);
}
.tag--live{color:var(--red);border-color:rgba(192,57,43,.34);background:rgba(192,57,43,.08)}
.tag--live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--red)}
.tag--moss{color:var(--moss);border-color:rgba(79,107,74,.36);background:rgba(79,107,74,.08)}
.tag--clay{color:var(--clay);border-color:rgba(156,91,59,.36);background:rgba(156,91,59,.08)}
.tag--gold{color:#7A5A1C;border-color:var(--line-gold);background:rgba(235,203,139,.34)}

.chip-bar{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  min-height:36px;padding:6px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.72);
  font-size:13.5px;font-weight:500;letter-spacing:.05em;color:var(--stone);
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast),transform var(--t-fast);
}
.chip:hover{border-color:var(--line-gold);color:var(--ink);transform:translateY(-2px)}
.chip[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:var(--snow)}
.chip[aria-pressed="true"]::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold-soft)}

/* ---------- 6. 面板 · 卡片 · 数据条带 ---------- */
.panel{
  position:relative;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius-l);
  padding:clamp(22px,3vw,40px);box-shadow:var(--shadow-1);
}
.panel--layered{box-shadow:var(--shadow-1),8px 8px 0 -1px rgba(200,150,62,.16)}
.panel--dark{background:var(--navy);border-color:var(--line-light-gold);color:rgba(247,245,241,.8)}
.panel--dark h2,.panel--dark h3,.panel--dark h4{color:var(--snow)}
.panel--dark .eyebrow{color:var(--gold-soft)}
.panel--tint{background:linear-gradient(158deg,var(--gold-soft),var(--white) 58%);border-color:var(--line-gold)}
.panel--slant{clip-path:polygon(0 1.6%,100% 0,100% 98.4%,0 100%);border-radius:var(--radius-m)}

.card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:20px 22px;
  transition:transform var(--t-mid),box-shadow var(--t-mid),border-color var(--t-fast);
}
.card:hover{transform:translateY(-6px);border-color:var(--line-gold);box-shadow:var(--shadow-2)}
.card h3{font-size:clamp(18px,1.6vw,21px)}
.card p{color:rgba(16,16,20,.7);font-size:15.5px}

.ribbon{
  display:flex;flex-wrap:wrap;gap:12px 34px;align-items:baseline;
  background:var(--navy);color:var(--gold-soft);
  border:1px solid var(--line-light-gold);border-radius:var(--radius-s);
  padding:14px 18px;font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;
}
.ribbon-item{display:inline-flex;gap:8px;align-items:baseline}
.ribbon-item b{color:var(--snow);font-weight:500}
.ribbon-item--live b{color:#F2A79D}

.stat{display:grid;gap:6px}
.stat-value{font-family:var(--font-mono);font-size:clamp(26px,3vw,40px);font-weight:500;line-height:1;color:var(--ink)}
.stat-label{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--stone)}

.fold{
  border:1px solid var(--line);border-radius:var(--radius-m);
  background:var(--white);overflow:hidden;
}
.fold + .fold{margin-top:10px}
.fold summary{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:16px 20px;font-weight:500;cursor:pointer;
  transition:background var(--t-fast),color var(--t-fast);
}
.fold summary:hover{background:rgba(235,203,139,.2)}
.fold summary::after{content:"＋";font-family:var(--font-mono);color:var(--gold);flex:0 0 auto}
.fold[open] summary::after{content:"－"}
.fold[open] summary{border-bottom:1px solid var(--line)}
.fold-body{padding:16px 20px 20px;color:rgba(16,16,20,.78);font-size:15.5px}

/* ---------- 7. 图像容器（页面阶段放图） ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 10;border-radius:var(--radius-m);
  border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 12% 8%, rgba(200,150,62,.5), transparent 58%),
    linear-gradient(150deg, var(--gold-soft) 0%, var(--snow) 52%, #D9DFEA 100%);
}
.media-frame::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--gold) 0 34%, var(--red) 34% 40%, transparent 40%);
}
.media-frame img,.media-frame video,.media-frame svg{
  width:100%;height:100%;object-fit:cover;display:block;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--navy{
  background:
    radial-gradient(110% 90% at 80% 10%, rgba(200,150,62,.42), transparent 60%),
    linear-gradient(150deg, #1E2C52 0%, var(--navy) 60%, #0E1628 100%);
  border-color:var(--line-light-gold);
}
.media-caption{
  margin-top:10px;font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:.04em;color:var(--stone);
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumbs{padding:6px 0;font-family:var(--font-mono);font-size:12.5px;color:var(--stone)}
.breadcrumbs-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs-item{display:flex;align-items:center;gap:8px}
.breadcrumbs-item:not(:last-child)::after{content:"/";color:rgba(110,106,101,.5)}
.breadcrumbs a{transition:color var(--t-fast)}
.breadcrumbs a:hover{color:var(--clay)}
.breadcrumbs [aria-current="page"]{color:var(--ink)}

/* ---------- 9. 头部 · 悬浮胶囊导航 ---------- */
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:200;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:var(--navy);color:var(--snow);font-size:14px;
  transition:top var(--t-fast);
}
.skip-link:focus{top:14px}

.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0 12px;
  background:linear-gradient(180deg, rgba(247,245,241,.96) 0%, rgba(247,245,241,.88) 58%, rgba(247,245,241,0) 100%);
}
.header-shell{
  position:relative;width:var(--shell);margin-inline:auto;
  display:flex;align-items:center;gap:12px;
}
.brand-island{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
  padding:7px 18px 7px 8px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-1);
  transition:border-color var(--t-fast),transform var(--t-fast);
}
.brand-island:hover{border-color:var(--line-gold)}
.brand-mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:38px;height:38px;border-radius:12px;
  background:var(--navy);color:var(--gold-soft);
}
.brand-words{display:flex;flex-direction:column;line-height:1.18}
.brand-name{font-family:var(--font-display);font-size:16px;font-weight:800;letter-spacing:.02em}
.brand-sub{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.02em;color:var(--stone);white-space:nowrap}

.header-body{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-capsule{
  padding:6px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-1);
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  display:inline-flex;align-items:center;min-height:36px;padding:0 14px;
  border-radius:var(--radius-pill);font-size:14.5px;font-weight:500;
  color:rgba(16,16,20,.72);
  transition:background var(--t-fast),color var(--t-fast);
}
.nav-link:hover{color:var(--ink);background:rgba(200,150,62,.16)}
.nav-link[aria-current="page"]{
  color:var(--ink);background:var(--gold);
  box-shadow:inset 0 0 0 1px rgba(16,16,20,.08);
}
.header-tools{display:flex;align-items:center;gap:10px}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line-gold);background:rgba(235,203,139,.55);
  color:#3A2A0C;font-size:13px;font-weight:500;letter-spacing:.02em;white-space:nowrap;
}
.status-dot{
  width:7px;height:7px;border-radius:50%;background:var(--moss);flex:0 0 auto;
  box-shadow:0 0 0 3px rgba(79,107,74,.18);
  animation:statusPulse 2.6s ease-in-out infinite;
}
@keyframes statusPulse{0%,100%{opacity:1}50%{opacity:.45}}

.nav-toggle{
  display:none;align-items:center;gap:10px;flex:0 0 auto;
  height:44px;padding:0 16px 0 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-1);
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;
}
.nav-toggle-bars{position:relative;display:block;width:18px;height:12px;flex:0 0 auto}
.nav-toggle-bars span{position:absolute;left:0;width:100%;height:1.5px;background:var(--ink);transition:transform var(--t-mid),opacity var(--t-fast)}
.nav-toggle-bars span:nth-child(1){top:0}
.nav-toggle-bars span:nth-child(2){top:5.2px}
.nav-toggle-bars span:nth-child(3){top:10.4px}
.site-header[data-open] .nav-toggle-bars span:nth-child(1){transform:translateY(5.2px) rotate(38deg)}
.site-header[data-open] .nav-toggle-bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle-bars span:nth-child(3){transform:translateY(-5.2px) rotate(-38deg)}
.nav-toggle-text{font-family:var(--font-body);font-weight:500}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:var(--section-gap);
  background:var(--navy);color:rgba(247,245,241,.78);overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto 0;height:220px;pointer-events:none;
  background:radial-gradient(120% 100% at 10% 0%, rgba(200,150,62,.3), transparent 62%);
}
.footer-edge{
  position:relative;height:5px;
  background:linear-gradient(90deg,var(--gold) 0 38%, var(--red) 38% 44%, var(--gold-soft) 44% 100%);
}
.footer-inner{
  position:relative;display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,2.1fr) minmax(0,1.25fr);
  gap:clamp(26px,4vw,56px);
  padding:clamp(40px,6vw,74px) 0 38px;
}
.footer-brand-link{display:inline-flex;align-items:center;gap:11px}
.footer-brand-link .brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:rgba(235,203,139,.14);color:var(--gold-soft);
  border:1px solid var(--line-light-gold);
}
.footer-brand-name{font-family:var(--font-display);font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--snow)}
.footer-tagline{margin-top:16px;max-width:32ch;font-size:15px;line-height:1.8;color:rgba(247,245,241,.68)}
.footer-meta{margin-top:22px;display:grid;gap:8px;font-family:var(--font-mono);font-size:12.5px}
.footer-meta-row{
  display:grid;grid-template-columns:60px 1fr;gap:10px;
  padding-bottom:8px;border-bottom:1px dashed rgba(235,203,139,.2);
}
.footer-meta dt{color:rgba(235,203,139,.75);letter-spacing:.06em}
.footer-meta dd{color:rgba(247,245,241,.84)}

.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,2.6vw,32px)}
.footer-col-title{
  margin-bottom:16px;font-size:13px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft);
}
.footer-list{display:grid;gap:10px}
.footer-link{
  position:relative;display:inline-block;padding-left:15px;
  font-size:15px;color:rgba(247,245,241,.74);
  transition:color var(--t-fast),padding-left var(--t-fast);
}
.footer-link::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:1px;
  background:var(--gold);transform:translateY(-50%) scaleX(.6);transform-origin:left;
  transition:transform var(--t-fast),width var(--t-fast);
}
.footer-link:hover{color:var(--snow);padding-left:18px}
.footer-link:hover::before{width:11px;transform:translateY(-50%) scaleX(1)}
.footer-link[aria-current="page"]{color:var(--gold-soft)}
.footer-link[aria-current="page"]::before{width:11px;transform:translateY(-50%) scaleX(1)}

.footer-contact{
  padding:20px;border:1px solid var(--line-light-gold);border-radius:var(--radius-m);
  background:rgba(247,245,241,.05);
}
.footer-contact-title{
  margin-bottom:14px;font-size:13px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft);
}
.footer-contact-list{display:grid;gap:12px}
.footer-contact-item{display:grid;gap:2px}
.footer-contact-label{
  font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(235,203,139,.68);
}
.footer-contact-value{
  font-family:var(--font-mono);font-size:13.5px;line-height:1.6;
  color:var(--snow);word-break:break-word;
}
.footer-contact-note{margin-top:16px;font-size:12.5px;line-height:1.75;color:rgba(247,245,241,.6)}

.footer-ruler{
  position:relative;width:var(--shell);margin-inline:auto;height:22px;
  border-top:1px solid var(--line-light-gold);
  background-image:repeating-linear-gradient(90deg, rgba(235,203,139,.45) 0 1px, transparent 1px 26px);
}
.footer-legal{
  position:relative;width:var(--shell);margin-inline:auto;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding:20px 0 34px;border-top:1px solid var(--line-light);
}
.footer-legal-line{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.01em;color:rgba(247,245,241,.64)}
.footer-legal-line--muted{color:rgba(247,245,241,.42)}

/* ---------- 11. 进入视口显现 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(24px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.22,.8,.3,1);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 12. 响应式 ---------- */
@media (max-width:1080px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:1040px){
  :root{--shell:min(1240px, calc(100% - 32px))}
  .nav-toggle{display:inline-flex}
  .header-shell{justify-content:space-between}
  .header-body{
    position:absolute;top:calc(100% + 12px);left:0;right:0;margin-left:0;
    display:none;flex-direction:column;align-items:stretch;gap:14px;
    max-height:calc(100vh - 130px);overflow-y:auto;
    padding:16px;border-radius:var(--radius-l);
    border:1px solid var(--line);background:var(--snow);
    box-shadow:var(--shadow-2);
  }
  .site-header[data-open] .header-body{display:flex}
  .nav-capsule{padding:0;border:0;background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{min-height:48px;padding:0 16px;border-radius:14px;font-size:16px;justify-content:space-between}
  .nav-link::after{content:"›";font-family:var(--font-mono);color:rgba(16,16,20,.28)}
  .header-tools{flex-wrap:wrap;gap:10px;padding-top:14px;border-top:1px solid var(--line)}
  .header-tools .btn{flex:1 1 140px}
  .status-chip{width:100%;justify-content:center;white-space:normal;text-align:center}
}
@media (min-width:1041px){
  .site-header[data-condensed] .brand-sub,
  .site-header[data-condensed] .status-chip,
  .site-header[data-condensed] .header-tools .btn--ghost{display:none}
  .site-header[data-condensed] .brand-island{padding:5px 16px 5px 6px}
  .site-header[data-condensed] .brand-mark{width:32px;height:32px;border-radius:10px}
}
@media (max-width:900px){
  .brand-sub{display:none}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .panel{border-radius:var(--radius-m)}
}
@media (max-width:640px){
  :root{--shell:calc(100% - 28px);--gap:18px}
  .footer-inner{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr;gap:26px}
  .footer-legal{flex-direction:column;gap:8px}
  .nav-toggle{padding:0 14px}
  .nav-toggle-text{display:none}
  .btn{width:auto}
  .media-frame{border-radius:var(--radius-s)}
}

/* ---------- 13. 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
}