/* =========================================================
   bvip体育 · 共享样式 /assets/site.css
   暗底荧光 · 技术蓝图网格 · 编辑部索引
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink:#06120F;
  --ink-2:#0C1F1A;
  --line:#17453A;
  --line-soft:rgba(23,69,58,.55);
  --cyan:#35F1C4;
  --cyan-soft:#9BFBE0;
  --orange:#FF7A2F;
  --amber:#FFC24B;
  --text:#E8F2ED;
  --muted:#7E9A91;
  --num:#F4FFF9;
  --on-cyan:#04150F;

  --font-display:"Arial Narrow","Helvetica Neue Condensed","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:Georgia,"Songti SC","Source Han Serif SC","Noto Serif CJK SC","SimSun",serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono","Courier New",monospace;
  --font-body:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --r-lg:28px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --hdr-h:68px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 12% -8%, rgba(53,241,196,.10), transparent 68%),
    radial-gradient(900px 520px at 96% 4%, rgba(255,122,47,.07), transparent 70%),
    linear-gradient(to right, rgba(23,69,58,.22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23,69,58,.22) 1px, transparent 1px);
  background-size:auto,auto,88px 88px,88px 88px;
  background-attachment:fixed,fixed,fixed,fixed;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(53,241,196,.3);color:var(--num)}

body{
  background:transparent;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* ---------- 3. 字体工具 ---------- */
.display,.display-title{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.05}
.display-title{font-size:clamp(36px,6.4vw,74px)}
.serif{font-family:var(--font-serif)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--num)}
.lede{font-size:clamp(16px,1.6vw,18px);line-height:1.8;color:var(--muted);max-width:44ch}

/* ---------- 4. 容器与网格 ---------- */
.shell{width:min(100% - 2 * var(--gutter), var(--shell));margin-inline:auto}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,2vw,26px)}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}

.section{padding-block:clamp(40px,6vw,88px)}
.section--tight{padding-block:clamp(26px,4vw,52px)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px 32px;margin-bottom:clamp(20px,3vw,36px);
}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);
}
.kicker::before{content:"";width:22px;height:1px;background:var(--cyan);box-shadow:0 0 10px rgba(53,241,196,.8)}
.section-title{
  font-family:var(--font-serif);font-weight:600;
  font-size:clamp(23px,3vw,38px);line-height:1.2;letter-spacing:0;color:var(--text);
}

/* ---------- 5. 按钮 / 胶囊 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-family:var(--font-body);font-size:15px;font-weight:700;letter-spacing:.02em;
  line-height:1;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{
  background:var(--cyan);color:var(--on-cyan);
  box-shadow:0 0 0 1px rgba(53,241,196,.45),0 14px 34px -16px rgba(53,241,196,.9);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px var(--cyan-soft),0 18px 42px -14px rgba(53,241,196,.95)}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(12,31,26,.7)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-sm{padding:9px 16px;font-size:13px}

.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(12,31,26,.72);
  font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.pill:hover{color:var(--cyan-soft);border-color:rgba(53,241,196,.45)}
.pill[aria-pressed="true"],.pill.is-active{
  background:var(--cyan);border-color:var(--cyan);color:var(--on-cyan);
  box-shadow:0 0 24px -8px rgba(53,241,196,.9);
}
.pill--orange[aria-pressed="true"],.pill--orange.is-active{background:var(--orange);border-color:var(--orange);color:#1B0A00}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);border:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--muted);
}
.tag--live{color:var(--cyan);border-color:rgba(53,241,196,.5);background:rgba(53,241,196,.1)}
.tag--alert{color:var(--orange);border-color:rgba(255,122,47,.5);background:rgba(255,122,47,.1)}

/* ---------- 6. 面板 / 索引 / 数据 ---------- */
.panel{
  background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:clamp(18px,2.4vw,30px);
}
.panel--glow{
  border-color:rgba(53,241,196,.45);
  box-shadow:0 0 0 1px rgba(53,241,196,.1),0 34px 70px -46px rgba(53,241,196,.85);
}
.panel-title{
  font-family:var(--font-display);font-weight:800;font-size:18px;
  letter-spacing:.01em;line-height:1.3;margin-bottom:12px;
}

.index-list{display:flex;flex-direction:column}
.index-item{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:12px 14px;align-items:baseline;
  padding:13px 0;border-bottom:1px dashed var(--line-soft);
}
.index-item:last-child{border-bottom:0}
.index-num{font-family:var(--font-mono);font-size:12px;color:var(--cyan);letter-spacing:.06em}
.index-title{font-size:15.5px;line-height:1.55;color:var(--text)}
.index-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);white-space:nowrap}

.data-strip{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(132px,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
}
.data-cell{background:var(--ink-2);padding:15px 17px}
.data-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);margin-bottom:4px}
.data-value{font-family:var(--font-mono);font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-.01em;color:var(--num);line-height:1.2}
.data-value--cyan{color:var(--cyan)}
.data-value--orange{color:var(--orange)}

/* ---------- 7. 旁注 / 面包屑 / 正文 ---------- */
.note{
  font-family:var(--font-serif);font-size:14.5px;line-height:1.85;
  color:var(--muted);padding-left:16px;border-left:2px solid var(--cyan);
}
.note--amber{border-left-color:var(--amber)}

.breadcrumb{padding-block:16px;border-bottom:1px solid var(--line)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.breadcrumb a{color:var(--muted);transition:color .18s ease}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--text)}
.crumb-sep{color:var(--line)}

.prose{max-width:68ch;font-size:16.5px;line-height:1.85;color:var(--text)}
.prose p{margin-bottom:1.1em}
.prose h3{font-family:var(--font-serif);font-weight:600;font-size:22px;line-height:1.4;margin:1.6em 0 .6em}
.prose ul{margin-bottom:1.1em}
.prose li{position:relative;padding-left:20px;margin-bottom:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1px;background:var(--cyan)}

/* ---------- 8. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;display:block;width:100%;overflow:hidden;
  aspect-ratio:16 / 9;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0C1F1A 0%,#06120F 100%);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(23,69,58,.4) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23,69,58,.4) 1px, transparent 1px);
  background-size:28px 28px;
  opacity:.7;
}
.media-frame--plain::after{display:none}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:4 / 5}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame > img{width:100%;height:100%;object-fit:cover}
.media-frame__tag{
  position:absolute;left:14px;bottom:14px;z-index:1;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(6,18,15,.86);border:1px solid rgba(53,241,196,.45);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--cyan);
}

/* ---------- 9. 页头 ---------- */
.skip-link{
  position:absolute;left:16px;top:-70px;z-index:120;
  padding:10px 18px;border-radius:var(--r-pill);
  background:var(--cyan);color:var(--on-cyan);
  font-size:14px;font-weight:700;
  transition:top .2s ease;
}
.skip-link:focus{top:12px}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,18,15,.96);
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease,box-shadow .2s ease;
}
.site-header[data-scrolled]{
  background:rgba(6,18,15,1);
  box-shadow:0 22px 44px -34px rgba(53,241,196,.9);
}
.hdr-grid{
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:12px var(--gutter);
  min-height:var(--hdr-h);
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:clamp(12px,2.5vw,32px);
}
.scroll-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  box-shadow:0 0 14px rgba(53,241,196,.85);
  transition:width .1s linear;
}

/* 品牌锁定区 */
.brand{min-width:0}
.brand-link{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  flex:none;width:40px;height:40px;border-radius:14px;
  display:grid;place-items:center;
  font-family:var(--font-display);font-weight:800;font-size:15px;letter-spacing:-.02em;
  color:var(--on-cyan);
  background:linear-gradient(140deg,var(--cyan),#12B892);
  box-shadow:0 0 0 1px rgba(53,241,196,.5),0 12px 26px -14px rgba(53,241,196,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--num)}
.brand-sub{font-size:11px;letter-spacing:.12em;color:var(--muted)}

/* 实时状态条 */
.status-rail{
  justify-self:center;min-width:0;max-width:100%;
  display:flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:linear-gradient(90deg,rgba(12,31,26,.95),rgba(12,31,26,.5));
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--muted);
  white-space:nowrap;overflow:hidden;
}
.status-dot{
  flex:none;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);
  animation:status-pulse 2.4s ease-out infinite;
}
@keyframes status-pulse{
  0%{box-shadow:0 0 0 0 rgba(53,241,196,.65)}
  70%{box-shadow:0 0 0 9px rgba(53,241,196,0)}
  100%{box-shadow:0 0 0 0 rgba(53,241,196,0)}
}
.status-text{min-width:0;overflow:hidden;text-overflow:ellipsis}

/* 导航 */
.nav-rail{justify-self:end;display:flex;align-items:center;gap:6px;min-width:0}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;letter-spacing:.02em;color:var(--muted);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--cyan-soft);background:rgba(53,241,196,.08)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--cyan);box-shadow:0 0 10px rgba(53,241,196,.9);
}
.nav-foot{margin-left:10px;display:flex;align-items:center}

/* 移动开关 */
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 16px 9px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--ink-2);color:var(--text);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle-bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.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)}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,8vw,110px);
  background:linear-gradient(180deg,rgba(12,31,26,.6) 0%,rgba(6,18,15,1) 62%);
  border-top:1px solid var(--line);
  color:var(--text);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:132px;height:2px;
  background:var(--cyan);box-shadow:0 0 20px rgba(53,241,196,.9);
}
.ft-inner{
  width:min(100% - 2 * var(--gutter), var(--shell));
  margin-inline:auto;
  padding-block:clamp(40px,6vw,74px) clamp(22px,3vw,34px);
}
.ft-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:clamp(22px,3vw,48px);
}
.ft-col{min-width:0}
.ft-brand{
  font-family:var(--font-display);font-weight:800;font-size:22px;
  letter-spacing:-.01em;color:var(--cyan);margin-bottom:12px;
}
.ft-desc{font-size:14px;line-height:1.8;color:var(--muted);max-width:34ch;margin-bottom:14px}
.ft-meta{font-family:var(--font-mono);font-size:12px;line-height:1.9;color:var(--muted)}
.ft-title{
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--cyan-soft);
  margin-bottom:14px;
}
.ft-title::before{content:"";display:block;width:18px;height:2px;background:var(--cyan);margin-bottom:10px;border-radius:2px}
.ft-list{display:flex;flex-direction:column;gap:2px}
.ft-link{
  display:inline-block;padding:5px 0;font-size:14px;color:var(--muted);
  transition:color .18s ease,transform .18s ease;
}
.ft-link:hover{color:var(--cyan);transform:translateX(3px)}
.ft-contact{display:flex;flex-direction:column}
.ft-contact-item{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;align-items:center;
  padding-bottom:11px;margin-bottom:11px;
  border-bottom:1px dashed var(--line-soft);
}
.ft-contact-item:last-child{padding-bottom:0;margin-bottom:0;border-bottom:0}
.ft-label{
  grid-column:1 / -1;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--muted);
}
.ft-value{
  font-family:var(--font-mono);font-size:13.5px;line-height:1.6;color:var(--num);
  word-break:break-all;
}
.copy-btn{
  align-self:center;flex:none;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--cyan-soft);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.copy-btn:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(53,241,196,.08)}
.copy-btn[data-copied]{background:var(--cyan);border-color:var(--cyan);color:var(--on-cyan)}
.ft-note{
  margin-top:clamp(26px,4vw,44px);
  font-family:var(--font-serif);font-size:13.5px;line-height:1.8;color:var(--muted);
  padding-left:14px;border-left:2px solid var(--amber);
}
.ft-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 26px;
  margin-top:clamp(24px,3.4vw,40px);padding-top:18px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--muted);
}
.ft-bar-item--end{margin-left:auto}

/* 回到顶部 */
.to-top{
  position:fixed;right:clamp(14px,3vw,28px);bottom:clamp(14px,3vw,28px);z-index:55;
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(53,241,196,.45);
  background:rgba(12,31,26,.95);color:var(--cyan);
  font-family:var(--font-mono);font-size:12.5px;font-weight:700;letter-spacing:.08em;
  opacity:0;visibility:hidden;transform:translateY(10px);pointer-events:none;
  box-shadow:0 20px 44px -26px rgba(0,0,0,.95);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background-color .18s ease,color .18s ease;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none;pointer-events:auto}
.to-top:hover{background:var(--cyan);border-color:var(--cyan);color:var(--on-cyan)}

/* ---------- 11. 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.2,.7,.3,1),transform .5s cubic-bezier(.2,.7,.3,1)}
.reveal.is-visible{opacity:1;transform:none;animation:reveal-flash .55s ease-out}
@keyframes reveal-flash{
  0%{box-shadow:0 0 0 1px rgba(53,241,196,.75)}
  100%{box-shadow:0 0 0 1px rgba(53,241,196,0)}
}

/* ---------- 12. 响应式 ---------- */
@media (max-width:1200px){
  .nav-link{padding:10px 10px;font-size:13.5px}
  .nav-link[aria-current="page"]::after{left:10px;right:10px}
  .brand-sub{display:none}
  .nav-foot{margin-left:6px}
}

@media (max-width:1024px){
  .hdr-grid{grid-template-columns:auto minmax(0,1fr) auto;gap:12px}
  .nav-toggle{display:inline-flex}
  .nav-rail{
    position:fixed;top:var(--hdr-h);left:0;right:0;bottom:0;
    z-index:70;
    display:flex;flex-direction:column;
    padding:22px var(--gutter) 30px;
    overflow-y:auto;
    background:linear-gradient(180deg,rgba(12,31,26,.99) 0%,rgba(6,18,15,.99) 100%);
    border-top:1px solid var(--line);
    opacity:0;visibility:hidden;transform:translateY(-10px);pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .nav-rail[data-open]{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav-list{
    flex-direction:column;align-items:stretch;gap:0;
    counter-reset:navidx;
  }
  .nav-item{counter-increment:navidx;border-bottom:1px solid var(--line)}
  .nav-link{
    display:flex;align-items:center;
    padding:16px 4px;border-radius:0;font-size:17px;font-weight:700;color:var(--text);
  }
  .nav-link::before{
    content:counter(navidx,decimal-leading-zero);
    margin-right:14px;
    font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--cyan);
  }
  .nav-link[aria-current="page"]{color:var(--cyan);background:rgba(53,241,196,.08)}
  .nav-link[aria-current="page"]::after{left:0;right:auto;top:8px;bottom:8px;width:2px;height:auto}
  .nav-foot{margin:auto 0 0;padding-top:24px}
  .nav-foot .btn{width:100%}
  .ft-grid{grid-template-columns:1fr 1fr}
  .ft-col--brand{grid-column:1 / -1}
  .ft-contact-item{max-width:420px}
}

@media (max-width:860px){
  .col-3,.col-4{grid-column:span 6}
  .col-5,.col-6,.col-7,.col-8{grid-column:span 12}
  .status-rail{font-size:11px;padding:6px 12px}
}

@media (max-width:640px){
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 12}
  .brand-mark{width:36px;height:36px;border-radius:12px;font-size:13px}
  .brand-name{font-size:17px}
  .ft-grid{grid-template-columns:1fr}
  .ft-bar{flex-direction:column;align-items:flex-start;gap:8px}
  .ft-bar-item--end{margin-left:0}
  .section-head{flex-direction:column;align-items:flex-start}
  .index-item{grid-template-columns:auto minmax(0,1fr);row-gap:4px}
  .index-meta{grid-column:2}
  .to-top{padding:10px 15px;font-size:11.5px}
}

@media (max-width:430px){
  .status-text{display:none}
  .status-rail{padding:8px;gap:0}
}

/* ---------- 13. 无障碍偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;animation:none !important}
  .status-dot{animation:none;box-shadow:0 0 0 4px rgba(53,241,196,.18)}
  .scroll-progress{transition:none}
}