/* ============================================================
   365体育亚洲 · BEAT365 共享样式 /assets/site.css
   01 reset  02 tokens  03 中文排版  04 左轨头部  05 页脚
   06 通用组件  07 响应式  08 无障碍与降级
   ============================================================ */

/* ---------- 01 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,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video,canvas{display:block;max-width:100%}
[hidden]{display:none !important}

/* ---------- 02 tokens ---------- */
:root{
  --ink:#0A1730;
  --ink-deep:#050B16;
  --cream:#F3EADA;
  --green:#C8FF3E;
  --orange:#FF7A2A;
  --silver:#AEB8C6;
  --brown:#1E1712;
  --cyan:#34E3D3;
  --red:#E5484D;
  --glass:rgba(255,255,255,.10);
  --text-on-dark:#E8EEF7;
  --text-muted-dark:#C2CEDF;
  --line-dark:rgba(174,184,198,.22);
  --line-light:rgba(30,23,18,.14);
  --rail-w:232px;
  --topbar-h:58px;
  --radius-lg:28px;
  --radius-md:20px;
  --radius-sm:14px;
  --pill:999px;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --shadow-lift:0 22px 48px rgba(3,8,18,.45);
}

/* ---------- 03 中文排版 ---------- */
body{
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.75;
  letter-spacing:.01em;
  background:var(--ink);
  color:var(--text-on-dark);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  min-height:100vh;
}
h1,h2,h3,h4,h5{font-weight:900;line-height:1.14;letter-spacing:-.015em}
p{text-wrap:pretty}
strong{font-weight:800}
.num,.mono,.stat__value,.rail-live__score,.section__index,
.rail-nav__index,.data-list__index,.data-list__meta,.band-line,.foot-icp,
.foot-contact__value,.rail-live__meta,.rail-live__pulse{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}
.display-title{font-size:clamp(2.4rem,6vw,5.2rem);font-weight:900;line-height:1.04;letter-spacing:-.03em}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 04 左轨头部 ---------- */
.skip-link{
  position:fixed;top:12px;left:12px;z-index:200;
  padding:10px 20px;border-radius:var(--pill);
  background:var(--green);color:#08121F;font-weight:800;font-size:.9rem;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus-visible{transform:none}

.read-progress{
  position:fixed;top:0;left:var(--rail-w);right:0;height:2px;z-index:130;
  background:linear-gradient(90deg,var(--green),var(--cyan) 55%,var(--orange));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
  pointer-events:none;
}

.site-header{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:90;
}

.rail-toggle{display:none}
.topbar-brand{display:none}

.rail{
  position:relative;
  display:flex;flex-direction:column;gap:18px;
  width:100%;height:100%;
  padding:24px 18px 20px;
  overflow:hidden;
  background:
    radial-gradient(120% 55% at 50% 108%,rgba(200,255,62,.14),transparent 62%),
    radial-gradient(90% 40% at 0% 0%,rgba(52,227,211,.12),transparent 60%),
    linear-gradient(180deg,#0C1B36 0%,#081228 58%,#060D1C 100%);
  border-right:1px solid var(--line-dark);
}

.rail-brand{display:grid;gap:10px;flex:0 0 auto;padding-bottom:18px;border-bottom:1px solid var(--line-dark)}
.rail-brand__top{display:flex;align-items:center;gap:11px}
.rail-brand__mark{
  flex:0 0 auto;width:46px;height:46px;border-radius:15px;
  display:grid;place-items:center;
  background:var(--green);color:#08121F;
  font-family:var(--font-mono);font-size:.78rem;font-weight:700;letter-spacing:.02em;
}
.rail-brand__id{display:grid;gap:1px;min-width:0}
.rail-brand__name{font-size:1.3rem;font-weight:900;color:#fff;letter-spacing:-.01em}
.rail-brand__sub{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.36em;color:var(--orange);text-transform:uppercase}
.rail-brand__tagline{font-size:.8rem;line-height:1.6;color:var(--silver)}

.rail-nav{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding-right:2px}
.rail-nav__list{display:grid;gap:3px}
.rail-nav__link{
  position:relative;
  display:grid;grid-template-columns:auto minmax(0,1fr);
  align-items:center;column-gap:10px;row-gap:0;
  padding:10px 12px;border-radius:var(--radius-sm);
  color:#C9D4E4;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.rail-nav__index{font-size:.72rem;letter-spacing:.06em;color:var(--silver);transition:color .22s var(--ease)}
.rail-nav__label{font-size:.95rem;font-weight:700}
.rail-nav__hint{
  grid-column:2;max-height:0;opacity:0;overflow:hidden;
  font-size:.72rem;line-height:1.6;color:var(--silver);
  transition:max-height .28s var(--ease),opacity .28s var(--ease);
}
.rail-nav__link:hover,.rail-nav__link:focus-visible{background:rgba(255,255,255,.07);color:#fff;transform:translateX(2px)}
.rail-nav__link:hover .rail-nav__hint,
.rail-nav__link:focus-visible .rail-nav__hint{max-height:3em;opacity:1}
.rail-nav__link[aria-current="page"]{
  background:linear-gradient(90deg,rgba(200,255,62,.16),rgba(200,255,62,.03));
  color:#fff;
  box-shadow:inset 0 0 0 1px rgba(200,255,62,.28);
}
.rail-nav__link[aria-current="page"] .rail-nav__index{color:var(--green)}
.rail-nav__link[aria-current="page"]::after{
  content:"";position:absolute;top:50%;right:11px;
  width:7px;height:7px;margin-top:-3.5px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 0 4px rgba(255,122,42,.18);
}

.rail-live{
  flex:0 0 auto;margin-top:auto;
  padding:14px 14px 12px;border-radius:var(--radius-md);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(6px);
}
.rail-live__head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.rail-live__title{font-size:.72rem;font-weight:800;letter-spacing:.2em;color:var(--silver)}
.rail-live__pulse{display:inline-flex;align-items:center;gap:6px;font-size:.64rem;color:var(--green);letter-spacing:.08em}
.rail-live__pulse::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--green);
  animation:beat-pulse 2.4s infinite;
}
@keyframes beat-pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(200,255,62,.55);opacity:1}
  50%{box-shadow:0 0 0 7px rgba(200,255,62,0);opacity:.5}
}
.rail-live__row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:7px 0;font-size:.8rem;
  border-top:1px dashed var(--line-dark);
}
.rail-live__row:first-of-type{border-top:0}
.rail-live__team{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#DDE6F2}
.rail-live__score{
  flex:0 0 auto;padding:2px 10px;border-radius:var(--pill);
  font-size:.9rem;font-weight:700;color:var(--green);
  background:rgba(200,255,62,.12);border:1px solid rgba(200,255,62,.32);
}
.rail-live__meta{margin-top:8px;font-size:.64rem;color:var(--silver);letter-spacing:.04em}

.rail-cta{
  flex:0 0 auto;display:block;text-align:center;
  padding:12px 14px;border-radius:var(--pill);
  background:var(--green);color:#08121F;
  font-size:.9rem;font-weight:800;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rail-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(200,255,62,.26)}

.rail-scrim{
  position:fixed;inset:0;z-index:85;
  background:rgba(5,11,22,.68);
  opacity:0;pointer-events:none;
  transition:opacity .28s var(--ease);
}
.rail-scrim[data-open="true"]{opacity:1;pointer-events:auto}

/* ---------- 05 页脚 ---------- */
.site-footer{
  position:relative;
  margin-left:var(--rail-w);
  padding:clamp(46px,6vw,86px) 0 26px;
  background:
    radial-gradient(80% 60% at 100% 0%,rgba(52,227,211,.10),transparent 60%),
    linear-gradient(180deg,#07101F,#050B16);
  color:#C9D4E4;
  border-top:1px solid var(--line-dark);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--green),var(--cyan) 42%,var(--orange));
}
.foot-grid{
  display:grid;
  grid-template-columns:1.15fr 1.05fr 1.4fr .95fr;
  gap:clamp(20px,2.6vw,38px);
  align-items:start;
}
.foot-col{display:grid;gap:12px;align-content:start;min-width:0}
.foot-col + .foot-col{border-left:1px solid var(--line-dark);padding-left:clamp(16px,2.2vw,30px)}
.foot-col.foot-col--reg{
  border:1px solid rgba(200,255,62,.5);
  border-radius:24px;
  padding:20px;
  background:rgba(200,255,62,.05);
}
.foot-brand{display:grid;gap:4px}
.foot-brand__name{font-size:1.25rem;font-weight:900;color:#fff}
.foot-brand__en{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.34em;color:var(--orange)}
.foot-brand__line{font-size:.88rem;line-height:1.75;color:var(--silver)}
.foot-icp{font-size:.72rem;color:var(--silver);letter-spacing:.05em}
.foot-heading{font-size:.72rem;font-weight:800;letter-spacing:.2em;color:var(--green);text-transform:uppercase}
.foot-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 18px;border-radius:var(--pill);
  border:1.5px solid var(--green);color:var(--green);
  font-size:.9rem;font-weight:800;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.foot-cta:hover{background:var(--green);color:#08121F;transform:translateY(-2px)}
.foot-links{display:grid;gap:8px}
.foot-link{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.9rem;color:#C9D4E4;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.foot-link::before{
  content:"";flex:0 0 auto;width:5px;height:5px;border-radius:50%;
  background:var(--orange);opacity:.7;
}
.foot-link:hover{color:var(--green);transform:translateX(3px)}
.foot-contact{display:grid;gap:10px}
.foot-contact__row{display:grid;gap:2px}
.foot-contact__label{font-size:.7rem;letter-spacing:.14em;color:var(--silver)}
.foot-contact__value{font-size:.86rem;color:#E8EEF7;word-break:break-word}
.foot-note{font-size:.78rem;line-height:1.8;color:var(--silver)}
.foot-divider{height:1px;background:var(--line-dark);margin:clamp(26px,4vw,44px) 0 18px}
.foot-meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;
  align-items:center;justify-content:space-between;
  font-size:.76rem;color:var(--silver);
}
.foot-meta__copy{margin:0}
.foot-meta__icp{font-size:.72rem;letter-spacing:.05em;color:var(--silver)}

/* ---------- 06 通用组件 ---------- */
.site-main{
  display:block;
  margin-left:var(--rail-w);
  min-height:100vh;
  background:var(--ink);
}
.container{width:min(1180px,100%);margin:0 auto;padding:0 clamp(18px,4vw,56px)}
.container--narrow{width:min(780px,100%)}

.section{position:relative;padding:clamp(46px,7vw,104px) 0}
.section--deep{background:var(--ink-deep)}
.section--paper{background:var(--cream);color:var(--brown)}
.section--band{
  padding:14px 0;
  background:linear-gradient(90deg,var(--orange),#FF9C56 55%,#FFC178);
  color:#1A0C04;
}
.band-line{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 26px;font-size:.78rem;letter-spacing:.12em;
}
.section__head{display:grid;gap:14px;max-width:76ch;margin-bottom:clamp(24px,4vw,46px)}
.section__index{font-size:.875rem;letter-spacing:.3em;color:var(--orange)}
.section--paper .section__index{color:#B4460F}
.section__title{font-size:clamp(1.85rem,3.4vw,3rem)}
.section__lead{font-size:1.0625rem;line-height:1.85;color:var(--silver);max-width:64ch}
.section--paper .section__lead{color:#4A3E33}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}
.grid--offset{align-items:start}
.grid--offset > *:nth-child(even){margin-top:clamp(16px,3.4vw,44px)}

.card{
  border-radius:var(--radius-lg);
  padding:clamp(18px,2.4vw,28px);
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.12);
  color:var(--text-on-dark);
}
.card__title{font-size:1.25rem;font-weight:800;margin-bottom:8px}
.card__meta{font-size:.72rem;letter-spacing:.1em;color:var(--silver);margin-bottom:10px}
.card__body{font-size:.95rem;line-height:1.8;color:var(--text-muted-dark)}
.section--paper .card{
  background:rgba(255,255,255,.55);
  border-color:var(--line-light);
  color:var(--brown);
}
.section--paper .card__body{color:#4A3E33}
.section--paper .card__meta{color:#6B5C4D}

.stat{display:grid;gap:5px}
.stat__value{font-size:clamp(1.8rem,3.6vw,2.8rem);font-weight:700;line-height:1;color:var(--green)}
.section--paper .stat__value{color:var(--ink)}
.stat__label{font-size:.82rem;letter-spacing:.04em;color:var(--silver)}
.section--paper .stat__label{color:#6B5C4D}

.data-list{border-top:1px solid var(--line-dark)}
.data-list__row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:14px;align-items:center;
  padding:14px 0;border-bottom:1px solid var(--line-dark);
}
.data-list__index{font-size:.75rem;color:var(--silver)}
.data-list__title{font-weight:700;font-size:.98rem}
.data-list__meta{font-size:.74rem;color:var(--cyan);letter-spacing:.04em}
.section--paper .data-list,.section--paper .data-list__row{border-color:var(--line-light)}
.section--paper .data-list__index{color:#8A7B6B}
.section--paper .data-list__meta{color:#0E6E68}

.media-frame{
  position:relative;isolation:isolate;
  overflow:hidden;border-radius:var(--radius-lg);
  aspect-ratio:16 / 9;
  border:1px solid rgba(255,255,255,.12);
  background:
    radial-gradient(120% 90% at 12% 8%,rgba(52,227,211,.22),transparent 58%),
    linear-gradient(148deg,#132540 0%,#0A1730 48%,#050B16 100%);
}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(196deg,rgba(255,122,42,.16),transparent 46%),
    linear-gradient(0deg,rgba(5,11,22,.62),transparent 62%);
}
.media-frame img,.media-frame video{
  position:relative;z-index:0;width:100%;height:100%;object-fit:cover;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame__tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  padding:5px 13px;border-radius:var(--pill);
  font-size:.72rem;font-weight:800;letter-spacing:.06em;
  background:rgba(5,11,22,.72);color:var(--green);
  border:1px solid rgba(200,255,62,.45);
}

.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:clamp(22px,3.4vw,40px);
  font-size:.8rem;color:var(--silver);
}
.breadcrumbs__link{color:var(--silver);text-decoration:underline;text-decoration-color:rgba(174,184,198,.4);text-underline-offset:3px}
.breadcrumbs__link:hover{color:var(--green)}
.breadcrumbs__sep{color:rgba(174,184,198,.5)}
.breadcrumbs__current{color:var(--text-on-dark);font-weight:700}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--pill);
  font-size:.95rem;font-weight:800;
  border:1.5px solid transparent;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--primary{background:var(--green);color:#08121F}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(200,255,62,.24)}
.btn--orange{background:var(--orange);color:#1A0C04}
.btn--orange:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,42,.26)}
.btn--outline{border-color:var(--green);color:var(--green)}
.btn--outline:hover{background:rgba(200,255,62,.14);transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-dark);color:var(--text-on-dark)}
.btn--ghost:hover{border-color:var(--silver);transform:translateY(-2px)}
.btn--sm{padding:8px 16px;font-size:.82rem}
.section--paper .btn--ghost{border-color:rgba(30,23,18,.28);color:var(--brown)}
.section--paper .btn--outline{border-color:#B4460F;color:#B4460F}
.section--paper .btn--outline:hover{background:rgba(180,70,15,.12)}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--pill);
  font-size:.78rem;font-weight:700;line-height:1.5;
  border:1px solid transparent;
}
.pill--green{background:rgba(200,255,62,.14);color:var(--green);border-color:rgba(200,255,62,.4)}
.pill--orange{background:rgba(255,122,42,.14);color:var(--orange);border-color:rgba(255,122,42,.38)}
.pill--cyan{background:rgba(52,227,211,.14);color:var(--cyan);border-color:rgba(52,227,211,.38)}
.pill--silver{background:rgba(174,184,198,.14);color:var(--silver);border-color:rgba(174,184,198,.32)}
.section--paper .pill--orange{color:#B4460F;border-color:rgba(180,70,15,.34);background:rgba(180,70,15,.10)}
.section--paper .pill--green{color:#2F5E00;border-color:rgba(47,94,0,.3);background:rgba(160,220,20,.20)}

.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.filter-pill{
  padding:7px 16px;border-radius:var(--pill);
  border:1px solid var(--line-dark);
  font-size:.82rem;font-weight:700;color:var(--silver);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.filter-pill:hover{color:#fff;border-color:rgba(255,255,255,.34)}
.filter-pill[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#08121F}

.accordion{display:grid;gap:10px}
.accordion__item{
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.04);
  overflow:hidden;
}
.accordion__trigger{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;text-align:left;
  font-size:1rem;font-weight:800;color:inherit;
  transition:color .2s var(--ease);
}
.accordion__trigger:hover{color:var(--green)}
.accordion__icon{position:relative;flex:0 0 auto;width:14px;height:14px}
.accordion__icon::before,.accordion__icon::after{content:"";position:absolute;border-radius:2px;background:currentColor}
.accordion__icon::before{top:6px;left:0;width:14px;height:2px}
.accordion__icon::after{left:6px;top:0;width:2px;height:14px;transition:transform .28s var(--ease)}
.accordion__item.is-open .accordion__icon::after{transform:scaleY(0)}
.accordion__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease)}
.accordion__item.is-open .accordion__panel{grid-template-rows:1fr}
.accordion__inner{min-height:0;overflow:hidden}
.accordion__content{padding:0 20px 18px;font-size:.95rem;line-height:1.85;color:var(--text-muted-dark)}
.section--paper .accordion__item{border-color:var(--line-light);background:rgba(255,255,255,.5)}
.section--paper .accordion__trigger:hover{color:#B4460F}
.section--paper .accordion__content{color:#4A3E33}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 07 响应式 ---------- */
@media (max-width:1180px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1080px){
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-col + .foot-col{border-left:0;padding-left:0}
  .foot-col.foot-col--reg{border:1px solid rgba(200,255,62,.5);padding-left:20px}
}
@media (max-width:960px){
  .site-header{
    top:0;left:0;right:0;bottom:auto;
    width:100%;height:var(--topbar-h);
    display:flex;align-items:center;gap:12px;
    padding:0 14px;
    background:#060D1C;
    border-bottom:1px solid var(--line-dark);
  }
  .rail-toggle{
    display:inline-flex;align-items:center;gap:9px;
    padding:8px 14px;border-radius:var(--pill);
    border:1px solid var(--line-dark);
    background:rgba(255,255,255,.06);
    color:#fff;font-size:.85rem;font-weight:700;
  }
  .rail-toggle__bars{position:relative;display:block;width:16px;height:10px}
  .rail-toggle__bars::before,.rail-toggle__bars::after{
    content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;
    background:var(--green);
    transition:transform .28s var(--ease);
  }
  .rail-toggle__bars::before{top:0}
  .rail-toggle__bars::after{bottom:0}
  .rail-toggle[aria-expanded="true"] .rail-toggle__bars::before{transform:translateY(4px) rotate(45deg)}
  .rail-toggle[aria-expanded="true"] .rail-toggle__bars::after{transform:translateY(-4px) rotate(-45deg)}
  .rail-toggle__label{line-height:1}
  .topbar-brand{display:block;font-size:1rem;font-weight:900;color:#fff;letter-spacing:-.01em}

  .rail{
    position:fixed;top:0;left:0;bottom:0;
    width:min(86vw,306px);height:100dvh;
    padding:22px 18px 18px;
    border-right:1px solid var(--line-dark);
    border-radius:0 var(--radius-lg) var(--radius-lg) 0;
    transform:translateX(-102%);
    transition:transform .32s var(--ease);
    z-index:95;
  }
  .rail[data-open="true"]{transform:none;box-shadow:var(--shadow-lift)}

  .read-progress{left:0;top:var(--topbar-h)}
  .site-main{margin-left:0;padding-top:var(--topbar-h)}
  .site-footer{margin-left:0}
}
@media (max-width:820px){
  .grid--split{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:720px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .grid--offset > *:nth-child(even){margin-top:0}
  .display-title{font-size:clamp(2.1rem,9vw,3.2rem)}
  .data-list__row{grid-template-columns:auto minmax(0,1fr);row-gap:6px}
  .data-list__row .data-list__meta{grid-column:2}
}
@media (max-width:640px){
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .foot-meta{justify-content:flex-start}
}

/* ---------- 08 无障碍与降级 ---------- */
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px}
.section--paper :focus-visible{outline-color:#B4460F}

@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}
  .read-progress{transition:none}
}