/* ==========================================================================
   5电竞 · 赛事中心 — 共享样式表 /assets/site.css
   DNA：夜间赛场指挥中心 / 侧边品牌轨道 / 时间轴叙事 / 霓虹青×暗夜紫×警示橙
   ========================================================================== */

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-padding-top:96px; }
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{ margin:0; }
ul,ol{ padding:0; list-style:none; }
img,svg,video,canvas{ display:block; max-width:100%; }
button,input,select,textarea{ font:inherit; color:inherit; background:none; border:0; }
button{ cursor:pointer; }
a{ color:inherit; text-decoration:none; }
table{ border-collapse:collapse; }
:focus-visible{ outline:2px solid var(--cyan); outline-offset:3px; border-radius:4px; }

/* ---------- 变量 ---------- */
:root{
  --night:#1A0B2E;
  --deep:#0B0518;
  --cyan:#00E5FF;
  --orange:#FF6B35;
  --violet:#7C4DFF;
  --panel:#122A3A;
  --green:#00FFA3;
  --ink:#EAF6FF;
  --muted:#9BB0C9;
  --line:#2E1B4D;

  --rail-w:88px;
  --rail-open:272px;
  --topbar-h:64px;
  --wrap:1320px;
  --gut:clamp(18px,4vw,56px);

  --r-xs:4px;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:26px;

  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --narrow:"PingFang SC","Microsoft YaHei",system-ui,"Arial Narrow","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.7,.3,1);
}

/* ---------- 基础排版 ---------- */
html[data-nav-open]{ overflow:hidden; }
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  background-color:var(--night);
  background-image:
    radial-gradient(120% 55% at 100% 0%, rgba(124,77,255,.24) 0%, rgba(124,77,255,0) 62%),
    linear-gradient(180deg, rgba(11,5,24,.9) 0%, rgba(11,5,24,0) 24%),
    repeating-linear-gradient(0deg, rgba(46,27,77,.30) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(90deg, rgba(46,27,77,.22) 0 1px, transparent 1px 96px);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:var(--narrow);
  font-weight:800;
  line-height:1.2;
  letter-spacing:.02em;
  color:var(--ink);
}
h1{ font-size:clamp(2.05rem,5.2vw,4.1rem); line-height:1.06; letter-spacing:.03em; text-transform:uppercase; }
h2{ font-size:clamp(1.45rem,3vw,2.25rem); }
h3{ font-size:clamp(1.1rem,1.8vw,1.4rem); }
strong,b{ font-weight:700; }
::selection{ background:var(--cyan); color:#04141c; }
.mono{ font-family:var(--mono); font-variant-numeric:tabular-nums; letter-spacing:.02em; }

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed; left:12px; top:-72px; z-index:200;
  padding:12px 18px;
  background:var(--cyan); color:#04141c;
  font-weight:700; font-size:15px;
  border-radius:0 0 10px 10px;
  transition:top .22s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{ top:0; }

/* ==========================================================================
   侧边品牌轨道 / 页头
   ========================================================================== */
.rail{
  position:fixed; inset:0 auto 0 0; z-index:80;
  width:var(--rail-open);
  display:flex;
  pointer-events:none;
}
.rail__inner{
  pointer-events:auto;
  display:flex; flex-direction:column;
  width:var(--rail-w); height:100%;
  padding:16px 16px 22px;
  background:linear-gradient(180deg,#150930 0%, var(--deep) 55%, #12072a 100%);
  border-right:1px solid var(--line);
  overflow:hidden;
  transition:width .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.rail__inner:hover,.rail__inner:focus-within{
  width:var(--rail-open);
  border-right-color:rgba(0,229,255,.45);
  box-shadow:30px 0 70px -40px rgba(0,229,255,.85);
}

/* 品牌 */
.brand{ display:flex; align-items:center; gap:14px; min-height:52px; }
.brand__mark{
  flex:0 0 48px; width:48px; height:48px;
  display:grid; place-items:center;
  font-family:var(--mono); font-size:15px; font-weight:700; letter-spacing:.06em;
  color:#04141c; background:var(--cyan);
  border-radius:12px 12px 12px 4px;
  box-shadow:0 0 26px -8px rgba(0,229,255,.9);
}
.brand__text{ display:flex; flex-direction:column; line-height:1.25; white-space:nowrap; }
.brand__cn{ font-family:var(--narrow); font-weight:800; font-size:18px; letter-spacing:.1em; }
.brand__sub{ font-family:var(--mono); font-size:11px; letter-spacing:.2em; color:var(--muted); }

/* 折叠态隐藏的长文本 */
.brand__text,
.nav__label,
.rail__cta-text,
.rail__hint,
.rail__status-text{
  opacity:0; visibility:hidden; transform:translateX(-8px);
  transition:opacity .22s var(--ease), transform .22s var(--ease), visibility .22s var(--ease);
}
.rail__inner:hover :is(.brand__text,.nav__label,.rail__cta-text,.rail__hint,.rail__status-text),
.rail__inner:focus-within :is(.brand__text,.nav__label,.rail__cta-text,.rail__hint,.rail__status-text){
  opacity:1; visibility:visible; transform:none;
}

/* 移动菜单按钮 */
.nav-toggle{
  display:none; align-items:center; gap:10px;
  margin-left:auto; padding:9px 14px;
  background:rgba(0,229,255,.08);
  border:1px solid rgba(0,229,255,.35); border-radius:999px;
  font-size:14px; letter-spacing:.06em; color:var(--ink);
  transition:border-color .22s var(--ease), background-color .22s var(--ease);
}
.nav-toggle:hover{ border-color:var(--cyan); background:rgba(0,229,255,.14); }
.nav-toggle__bars{ position:relative; display:block; width:18px; height:2px; background:var(--cyan); }
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:""; position:absolute; left:0; width:18px; height:2px; background:var(--cyan);
  transition:transform .24s var(--ease), opacity .2s var(--ease);
}
.nav-toggle__bars::before{ top:-6px; }
.nav-toggle__bars::after{ top:6px; }
html[data-nav-open] .nav-toggle__bars{ background:transparent; }
html[data-nav-open] .nav-toggle__bars::before{ transform:translateY(6px) rotate(45deg); }
html[data-nav-open] .nav-toggle__bars::after{ transform:translateY(-6px) rotate(-45deg); }

/* 导航 */
.nav{ display:flex; flex-direction:column; flex:1 1 auto; min-height:0; margin-top:14px; }
.nav__list{ display:flex; flex-direction:column; }
.nav__item{ position:relative; }
.nav__link{
  position:relative;
  display:flex; align-items:center; gap:12px;
  min-height:46px; padding:10px 6px;
  border-radius:10px;
  color:var(--muted);
  transition:color .22s var(--ease), background-color .22s var(--ease);
}
.nav__link::before{
  content:""; position:absolute; left:-6px; top:50%;
  width:2px; height:22px; border-radius:2px; background:var(--cyan);
  transform:translateY(-50%) scaleY(.2);
  opacity:0;
  transition:opacity .22s var(--ease), transform .22s var(--ease);
}
.nav__link:hover{ color:var(--ink); background:rgba(0,229,255,.07); }
.nav__link:hover .nav__idx{ color:var(--cyan); }
.nav__link[aria-current="page"]{
  color:var(--ink);
  background:linear-gradient(90deg, rgba(0,229,255,.14), rgba(0,229,255,0));
}
.nav__link[aria-current="page"]::before{ opacity:1; transform:translateY(-50%) scaleY(1); }
.nav__link[aria-current="page"] .nav__idx{ color:var(--cyan); }
.nav__idx{
  flex:0 0 32px; width:32px;
  font-family:var(--mono); font-size:12px; letter-spacing:.06em;
  color:rgba(155,176,201,.65);
  transition:color .22s var(--ease);
}
.nav__label{ font-size:15px; white-space:nowrap; letter-spacing:.02em; }

/* 轨道底部 */
.nav__foot{
  margin-top:auto; padding-top:16px;
  border-top:1px solid var(--line);
  display:flex; flex-direction:column; gap:14px;
}
.rail__cta{
  display:flex; align-items:center; gap:12px;
  min-height:46px; padding:8px 6px;
  border:1px solid rgba(255,107,53,.55); border-radius:12px;
  background:linear-gradient(90deg, rgba(255,107,53,.2), rgba(255,107,53,.04));
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.rail__cta:hover{ border-color:var(--orange); box-shadow:0 0 0 4px rgba(255,107,53,.14); }
.rail__cta-mark{
  flex:0 0 30px; width:30px; height:30px;
  display:grid; place-items:center;
  background:var(--orange); color:#22060b;
  font-weight:800; font-size:14px; border-radius:9px;
}
.rail__cta-text{ font-size:15px; font-weight:700; color:var(--ink); white-space:nowrap; }

.rail__hint{
  display:flex; align-items:flex-start; gap:10px;
  padding:10px 8px;
  border:1px dashed rgba(46,27,77,.95); border-radius:10px;
  transition:border-color .22s var(--ease);
}
.rail__hint:hover{ border-color:var(--cyan); }
.rail__hint-k{
  flex:0 0 auto;
  font-family:var(--mono); font-size:10px; letter-spacing:.16em;
  color:var(--cyan); border:1px solid rgba(0,229,255,.4); border-radius:4px; padding:1px 5px;
}
.rail__hint-t{ font-size:12.5px; line-height:1.5; color:var(--muted); white-space:nowrap; }

.rail__status{ display:flex; align-items:center; gap:10px; padding:6px; }
.rail__dot{
  flex:0 0 10px; width:10px; height:10px; border-radius:50%;
  background:var(--green); box-shadow:0 0 0 4px rgba(0,255,163,.14);
}
.rail__status-text{ font-size:12px; line-height:1.4; color:var(--muted); white-space:nowrap; }

/* 滚动进度 */
.rail__progress{
  position:absolute; top:0; left:calc(var(--rail-w) - 2px);
  width:2px; height:100%;
  background:linear-gradient(180deg, var(--cyan), var(--violet));
  transform-origin:top center;
  transform:scaleY(var(--p,0));
  opacity:.9;
  box-shadow:0 0 12px rgba(0,229,255,.7);
}

/* 抽屉遮罩（仅移动端启用） */
.nav-scrim{
  display:none;
  position:fixed; inset:0; z-index:1;
  background:rgba(11,5,24,.72);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .3s var(--ease), visibility .3s var(--ease);
}
html[data-nav-open] .nav-scrim{ opacity:1; visibility:visible; pointer-events:auto; }

/* ==========================================================================
   页脚
   ========================================================================== */
.site-foot{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  padding:clamp(40px,5vw,64px) var(--gut) clamp(28px,3vw,40px);
  background:linear-gradient(180deg, rgba(11,5,24,.35) 0%, var(--deep) 62%, #0d0519 100%);
  border-top:1px solid var(--line);
}
.site-foot::before{
  content:""; position:absolute; left:0; right:0; top:-1px; height:3px;
  background:linear-gradient(90deg,
    var(--cyan) 0 14%,
    var(--orange) 14% 18%,
    var(--violet) 18% 34%,
    rgba(46,27,77,.6) 34% 100%);
  opacity:.9;
}
.foot__grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3, minmax(0,1fr));
  gap:clamp(24px,3.4vw,52px);
  max-width:var(--wrap); margin:0 auto;
}
.foot__brand{ display:flex; flex-direction:column; align-items:flex-start; gap:14px; }
.foot__title{
  font-family:var(--narrow); font-weight:800;
  font-size:clamp(1.15rem,2vw,1.5rem); letter-spacing:.08em;
}
.foot__tag{ font-size:14px; line-height:1.7; color:var(--muted); max-width:34ch; }

.foot__col{ display:flex; flex-direction:column; gap:12px; }
.foot__col-title{
  position:relative;
  padding-left:14px;
  font-family:var(--mono); font-size:12px; font-weight:700;
  letter-spacing:.2em; text-transform:uppercase;
  color:var(--cyan);
}
.foot__col-title::before{
  content:""; position:absolute; left:0; top:.55em;
  width:6px; height:6px; background:var(--cyan); border-radius:1px;
}
.foot__list{ display:flex; flex-direction:column; gap:8px; }
.foot__link{
  position:relative; display:inline-block;
  padding:3px 0;
  font-size:15px; color:var(--muted);
  transition:color .22s var(--ease);
}
.foot__link::after{
  content:""; position:absolute; left:0; bottom:0;
  width:100%; height:1px; background:var(--cyan);
  transform:scaleX(0); transform-origin:left center;
  transition:transform .28s var(--ease);
}
.foot__link:hover{ color:var(--ink); }
.foot__link:hover::after{ transform:scaleX(1); }

.foot__base{
  max-width:var(--wrap); margin:clamp(30px,4vw,48px) auto 0;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex; flex-direction:column; gap:10px;
}
.foot__service{ font-size:14px; line-height:1.7; color:var(--ink); }
.foot__note{ font-size:13px; line-height:1.7; color:var(--muted); max-width:88ch; }
.foot__legal{ font-size:13px; line-height:1.7; color:rgba(155,176,201,.8); }
.foot__legal .mono{ color:var(--muted); }

/* ==========================================================================
   通用布局与组件
   ========================================================================== */
.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 var(--gut); }
.section{ padding:clamp(44px,6.5vw,92px) 0; }
.section--tight{ padding:clamp(26px,3.5vw,48px) 0; }

.grid{ display:grid; gap:clamp(16px,2.4vw,30px); }
.grid--2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid--3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.grid--wide{ grid-template-columns:minmax(0,1.6fr) minmax(0,1fr); align-items:start; }
.grid--stagger{ align-items:start; }
@media (min-width:901px){
  .grid--stagger{ padding-bottom:34px; }
  .grid--stagger > *:nth-child(2n){ transform:translateY(34px); }
}
@media (max-width:1100px){
  .grid--3{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:900px){
  .grid--2,.grid--3,.grid--wide{ grid-template-columns:minmax(0,1fr); }
}

/* 文本件 */
.eyebrow{
  display:inline-flex; align-items:center; gap:12px;
  margin-bottom:14px;
  font-family:var(--mono); font-size:12px; letter-spacing:.24em; text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:""; width:28px; height:2px; background:var(--cyan);
  box-shadow:0 0 12px rgba(0,229,255,.75);
}
.lede{ font-size:clamp(1rem,1.5vw,1.16rem); line-height:1.85; color:var(--muted); max-width:66ch; }
.note{
  padding-left:14px;
  border-left:2px solid var(--line);
  font-size:13px; line-height:1.75; color:var(--muted);
}
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 10px;
  font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted);
  border:1px solid var(--line); border-radius:999px;
}
.tag--key{ background:var(--orange); border-color:var(--orange); color:#22060b; font-weight:700; }
.tag--live{ color:var(--green); border-color:rgba(0,255,163,.45); }

/* 按钮 */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  padding:12px 22px;
  font-size:15px; font-weight:700; letter-spacing:.04em;
  border:1px solid transparent; border-radius:999px;
  transition:background-color .22s var(--ease), color .22s var(--ease),
             border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.btn--accent{ background:var(--orange); border-color:var(--orange); color:#22060b; }
.btn--accent:hover{ background:#ff8757; box-shadow:0 0 0 4px rgba(255,107,53,.18); }
.btn--cyan{ background:var(--cyan); border-color:var(--cyan); color:#04141c; }
.btn--cyan:hover{ background:#67efff; box-shadow:0 0 0 4px rgba(0,229,255,.18); }
.btn--ghost{ border-color:var(--line); color:var(--ink); }
.btn--ghost:hover{ border-color:var(--cyan); color:var(--cyan); }

/* 面包屑 */
.breadcrumb{ margin-bottom:22px; }
.breadcrumb__list{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--muted); }
.breadcrumb__item{ display:inline-flex; align-items:center; gap:8px; }
.breadcrumb__link{
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.breadcrumb__link:hover{ color:var(--cyan); border-bottom-color:currentColor; }
.breadcrumb__sep{ color:rgba(46,27,77,1); }
.breadcrumb__item[aria-current="page"]{ color:var(--ink); }

/* 时间轴 */
.timeline{ position:relative; padding-left:26px; }
.timeline::before{
  content:""; position:absolute; left:5px; top:6px; bottom:6px; width:1px;
  background:linear-gradient(180deg, rgba(0,229,255,.65), rgba(124,77,255,.4) 60%, rgba(46,27,77,.15));
}
.timeline__item{ position:relative; padding-bottom:clamp(26px,3.4vw,44px); }
.timeline__item:last-child{ padding-bottom:0; }
.timeline__item::before{
  content:""; position:absolute; left:-26px; top:7px;
  width:11px; height:11px; border-radius:50%;
  background:var(--night); border:2px solid var(--cyan);
}
.timeline__item--key::before{
  border-color:var(--orange);
  box-shadow:0 0 0 4px rgba(255,107,53,.16);
}
.timeline__stamp{
  display:block; margin-bottom:6px;
  font-family:var(--mono); font-size:12px; letter-spacing:.14em; color:var(--muted);
}
.timeline__title{ font-size:1.05rem; font-weight:700; }
.timeline__body{ margin-top:6px; font-size:15px; color:var(--muted); max-width:62ch; }

/* 面板 */
.panel{
  padding:clamp(18px,2.4vw,30px);
  background:linear-gradient(180deg, rgba(18,42,58,.88), rgba(18,42,58,.5));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.panel:hover{ border-color:rgba(0,229,255,.5); box-shadow:0 0 0 1px rgba(0,229,255,.12) inset; }
.panel--key{ border-color:rgba(255,107,53,.55); }
.panel--key:hover{ border-color:var(--orange); box-shadow:0 0 0 1px rgba(255,107,53,.14) inset; }
.panel__head{
  display:flex; flex-wrap:wrap; align-items:baseline; justify-content:space-between; gap:10px;
  padding-bottom:12px; margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.panel__title{ font-size:1.05rem; font-weight:700; }
.panel__meta{ font-family:var(--mono); font-size:12px; letter-spacing:.1em; color:var(--muted); }

/* 筛选芯片 */
.chip-group{ display:flex; flex-wrap:wrap; gap:10px; }
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 16px;
  font-size:14px; color:var(--muted);
  background:rgba(18,42,58,.5);
  border:1px solid var(--line); border-radius:999px;
  transition:color .22s var(--ease), border-color .22s var(--ease),
             background-color .22s var(--ease), box-shadow .22s var(--ease);
}
.chip:hover{ color:var(--ink); border-color:var(--cyan); }
.chip[aria-pressed="true"],
.chip.is-active{
  color:var(--ink);
  background:rgba(0,229,255,.14);
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,229,255,.12);
}

/* 媒体容器 */
.media{
  position:relative; overflow:hidden;
  border:1px solid var(--line); border-radius:var(--r-md);
  background:linear-gradient(140deg, var(--panel) 0%, var(--night) 100%);
}
.media__img{ width:100%; height:100%; object-fit:cover; }
.media::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(160deg, rgba(0,229,255,.14) 0%, rgba(0,229,255,0) 42%, rgba(255,107,53,.12) 100%);
}
.media--16x9{ aspect-ratio:16 / 9; }
.media--4x3{ aspect-ratio:4 / 3; }
.media--wide{ aspect-ratio:21 / 9; }
.media--empty{
  background-image:repeating-linear-gradient(135deg,
    rgba(124,77,255,.18) 0 14px,
    rgba(0,229,255,.07) 14px 28px);
}
.media--empty::before{
  content:attr(data-label);
  position:absolute; right:12px; bottom:12px; left:12px;
  font-family:var(--mono); font-size:11px; letter-spacing:.1em;
  color:var(--muted);
}
.media__caption{
  position:absolute; left:14px; bottom:12px;
  padding:4px 10px;
  font-size:12px; color:var(--ink);
  background:rgba(11,5,24,.75);
  border-left:2px solid var(--cyan);
  border-radius:0 6px 6px 0;
}

/* 表格 */
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--line); border-radius:var(--r-md);
  background:rgba(18,42,58,.42);
}
.data-table{ width:100%; min-width:640px; font-size:15px; }
.data-table th,
.data-table td{ padding:12px 16px; text-align:left; border-bottom:1px solid var(--line); }
.data-table thead th{
  font-family:var(--mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--cyan); background:rgba(11,5,24,.65);
  white-space:nowrap;
}
.data-table tbody tr{ transition:background-color .2s var(--ease); }
.data-table tbody tr:hover{ background:rgba(0,229,255,.06); }
.data-table tbody tr:last-child td{ border-bottom:0; }

/* 数据读数 */
.stat{ display:flex; flex-direction:column; gap:2px; }
.stat__value{
  font-family:var(--mono); font-variant-numeric:tabular-nums;
  font-size:clamp(1.5rem,2.6vw,2.2rem); font-weight:700; line-height:1.2;
  color:var(--ink);
}
.stat__value--up{ color:var(--green); }
.stat__label{ font-size:13px; letter-spacing:.04em; color:var(--muted); }

/* 显现 */
html[data-js] [data-reveal]{
  opacity:0; transform:translateY(16px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
html[data-js] [data-reveal].is-in{ opacity:1; transform:none; }

/* ==========================================================================
   响应式：平板 / 手机
   ========================================================================== */
@media (max-width:1080px){
  html{ scroll-padding-top:var(--topbar-h); }
  body{ padding-left:0; padding-top:var(--topbar-h); }

  .rail{ inset:0 0 auto 0; width:100%; height:var(--topbar-h); }
  .rail__inner{
    width:100%; height:var(--topbar-h);
    flex-direction:row; align-items:center; gap:12px;
    padding:0 clamp(14px,4vw,22px);
    overflow:visible;
    background:rgba(11,5,24,.97);
    border-right:0; border-bottom:1px solid var(--line);
  }
  .rail .rail__inner:hover,
  .rail .rail__inner:focus-within{
    width:100%;
    border-bottom-color:rgba(0,229,255,.4);
    box-shadow:0 20px 40px -30px rgba(0,229,255,.8);
  }
  .rail .rail__inner :is(.brand__text,.nav__label,.rail__cta-text,.rail__hint,.rail__status-text){
    opacity:1; visibility:visible; transform:none;
  }

  .brand{ min-height:0; gap:10px; }
  .brand__mark{ flex:0 0 40px; width:40px; height:40px; font-size:13px; border-radius:10px 10px 10px 3px; }
  .brand__cn{ font-size:16px; }
  .brand__sub{ display:none; }

  .nav-toggle{ display:inline-flex; }

  .nav{
    position:fixed; top:var(--topbar-h); right:0; bottom:0; left:auto; z-index:2;
    width:min(86vw,360px); margin:0;
    padding:20px clamp(16px,5vw,24px) 30px;
    background:linear-gradient(180deg,#170a33 0%, var(--deep) 100%);
    border-left:1px solid var(--line);
    box-shadow:-30px 0 80px -45px rgba(0,229,255,.85);
    overflow-y:auto; overscroll-behavior:contain;
    transform:translateX(102%); visibility:hidden;
    transition:transform .32s var(--ease), visibility .32s var(--ease);
  }
  .nav[data-open]{ transform:none; visibility:visible; }
  .nav__list{ gap:2px; }
  .nav__item{ border-bottom:1px solid var(--line); }
  .nav__link{ min-height:52px; padding:14px 10px; border-radius:0; }
  .nav__link::before{ left:-6px; }
  .nav__label{ font-size:16px; }
  .nav__foot{ margin-top:24px; }
  .rail__hint{ align-items:center; }
  .rail__hint-t{ white-space:normal; }
  .rail__cta{ padding:8px 10px; }

  .rail__progress{
    left:0; top:auto; bottom:0;
    width:100%; height:2px;
    transform-origin:left center;
    transform:scaleX(var(--p,0));
  }

  .nav-scrim{ display:block; }
}

@media (max-width:1000px){
  .foot__grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .foot__brand{ grid-column:1 / -1; }
}
@media (max-width:560px){
  .foot__grid{ grid-template-columns:minmax(0,1fr); gap:28px; }
  body{ font-size:16px; }
  .btn{ padding:11px 18px; }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: no-preference){
  html{ scroll-behavior:smooth; }
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  html[data-js] [data-reveal]{ opacity:1 !important; transform:none !important; }
}