/* =========================================================
   华体会赛场 / 共享样式表  /assets/site.css
   堆叠画板 · L 形框架导航 · 纸墨交替 · 荧光青数据流
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-900:#04110E;
  --ink-800:#071B16;
  --ink-700:#0E332B;
  --cyan:#38F2C6;
  --orange:#FF7A3D;
  --paper:#F3EBDC;
  --paper-shadow:#D6C9B2;
  --white:#FFFFFF;
  --ink-black:#0A0F0D;
  --muted:#8FA39C;
  --teal-ink:#0B6E58;

  --rail-w:64px;
  --shell-max:1320px;
  --cut:24px;

  --font-display:"Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --ease:cubic-bezier(.22,.8,.24,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:130px}
body{margin:0}
img,svg,video{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}

/* ---------- 3. 基础排版 ---------- */
body{
  background:var(--ink-800);
  color:var(--white);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
strong{font-weight:700}

.display{
  font-family:var(--font-display);
  font-size:clamp(42px,7.4vw,104px);
  line-height:1.02;
  letter-spacing:-.03em;
  font-weight:700;
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.12;
  letter-spacing:-.02em;
  font-weight:700;
}
.data-title{
  font-family:var(--font-body);
  font-weight:800;
  font-size:clamp(28px,4vw,52px);
  line-height:1.05;
  letter-spacing:-.01em;
  transform:skewX(-4deg);
  text-shadow:0 0 20px rgba(56,242,198,.28);
}
.chapter-num{
  display:block;
  font-family:var(--font-display);
  font-size:clamp(58px,10vw,140px);
  line-height:.82;
  letter-spacing:-.05em;
  color:transparent;
  -webkit-text-stroke:1px rgba(56,242,198,.45);
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.label{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
}
.lead{
  font-size:clamp(17px,1.5vw,21px);
  line-height:1.7;
  max-width:60ch;
  color:rgba(255,255,255,.84);
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.data-value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  color:var(--cyan);
}

/* ---------- 4. 布局 ---------- */
.shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:clamp(18px,3vw,40px);
}
.section{
  position:relative;
  padding-block:clamp(56px,8vw,120px);
}
.section--tight{padding-block:clamp(34px,5vw,64px)}
.section--paper{background:var(--paper);color:var(--ink-black)}
.section--paper .lead{color:rgba(10,15,13,.76)}
.section--paper .label{color:#7A7263}
.section--ink{background:var(--ink-900)}
.stack{display:flex;flex-direction:column;gap:clamp(16px,2vw,26px)}
.grid{display:grid;gap:clamp(18px,2.4vw,32px)}
.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))}

/* ---------- 5. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--solid{background:var(--orange);color:#190800}
.btn--solid:hover{background:#FF9463}
.btn--ghost{background:transparent;color:var(--cyan);border-color:rgba(56,242,198,.5)}
.btn--ghost:hover{background:rgba(56,242,198,.12)}
.btn--paper{background:var(--ink-black);color:var(--paper);border-color:transparent}
.btn--paper:hover{background:#16211D}

/* ---------- 6. 面板 / 标签 / 数据条 ---------- */
.panel{
  padding:clamp(20px,3vw,38px);
  background:var(--ink-700);
  border:1px solid rgba(56,242,198,.18);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.panel--ink{background:var(--ink-900);border-color:rgba(255,255,255,.09)}
.panel--paper{
  background:var(--paper);
  color:var(--ink-black);
  border:1px solid var(--paper-shadow);
  clip-path:none;
  box-shadow:10px 10px 0 0 rgba(4,17,14,.62);
}
.panel--paper a{color:var(--teal-ink)}

.tag{
  display:inline-block;
  padding:4px 10px;
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  background:rgba(56,242,198,.14);
  color:var(--cyan);
  border:1px solid rgba(56,242,198,.3);
}
.tag--orange{background:rgba(255,122,61,.18);color:var(--orange);border-color:rgba(255,122,61,.42)}
.tag--paper{background:var(--paper-shadow);color:var(--ink-black);border-color:transparent}

.data-bar{
  position:relative;
  height:6px;
  background:rgba(255,255,255,.13);
  overflow:hidden;
}
.data-bar__fill{
  position:absolute;
  inset:0 auto 0 0;
  width:var(--fill,50%);
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}
.section--paper .data-bar,.panel--paper .data-bar{background:rgba(10,15,13,.14)}

/* ---------- 7. 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 15px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--muted);
  border:1px solid rgba(143,163,156,.38);
  background:transparent;
  cursor:pointer;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.chip:hover{color:var(--white);border-color:rgba(56,242,198,.55)}
.chip[aria-pressed="true"]{background:var(--orange);border-color:var(--orange);color:#190800;font-weight:700}
.section--paper .chip{color:#6E6759;border-color:rgba(10,15,13,.24)}
.section--paper .chip:hover{color:var(--ink-black);border-color:var(--teal-ink)}

/* ---------- 8. 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  border:1px solid rgba(56,242,198,.18);
  background:
    radial-gradient(120% 90% at 18% 8%,rgba(56,242,198,.18),transparent 62%),
    linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.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--portrait{aspect-ratio:3/4}
.media--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 32px),calc(100% - 32px) 100%,0 100%)}
.media__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 18px 14px;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  background:linear-gradient(0deg,rgba(4,17,14,.92),transparent);
}

/* ---------- 9. 正文 / 面包屑 / 线条 ---------- */
.prose{max-width:72ch;font-size:17px;line-height:1.85}
.prose p + p{margin-top:24px}
.prose h2{font-family:var(--font-display);font-size:clamp(24px,2.6vw,34px);line-height:1.25;margin-top:44px}
.prose h3{font-size:19px;font-weight:700;margin-top:28px}
.prose ul{margin-top:16px}
.prose li{position:relative;padding-left:22px;margin-top:10px}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:10px;height:2px;background:var(--cyan)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(56,242,198,.42)}
.panel--paper .prose li::before,.section--paper .prose li::before{background:var(--orange)}
.panel--paper .prose a,.section--paper .prose a{color:var(--teal-ink);border-bottom-color:rgba(11,110,88,.45)}

.breadcrumbs{padding-block:14px;font-size:12px;letter-spacing:.14em;color:var(--muted)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs__list li + li::before{content:"/";margin-right:8px;color:rgba(143,163,156,.55)}
.breadcrumbs__link{color:var(--muted)}
.breadcrumbs__link:hover{color:var(--cyan)}
.breadcrumbs__current{color:var(--white)}
.section--paper .breadcrumbs__current{color:var(--ink-black)}

.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,rgba(56,242,198,.55),rgba(56,242,198,0))}
.slash{
  position:absolute;
  width:1px;height:170%;
  background:linear-gradient(180deg,transparent,rgba(56,242,198,.35),transparent);
  transform:rotate(18deg);
  pointer-events:none;
}
.track-line{
  position:absolute;
  left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,rgba(56,242,198,.42) 0 8px,transparent 8px 16px);
  pointer-events:none;
}

/* ---------- 10. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:50%;top:10px;
  z-index:200;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink-900);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  transform:translate(-50%,-180%);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:transform .25s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

/* ---------- 11. 头部：比分带 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-900);
  border-bottom:1px solid rgba(56,242,198,.18);
}
.ticker{background:var(--ink-900);border-bottom:1px solid rgba(255,255,255,.07)}
.ticker__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,20px);
  min-height:36px;
  padding-block:6px;
  font-size:12px;
  letter-spacing:.14em;
  white-space:nowrap;
  overflow:hidden;
}
.ticker__label{color:var(--orange);font-weight:700;flex:0 0 auto}
.ticker__match{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--white);
  flex:0 0 auto;
}
.ticker__match:hover .ticker__score{color:var(--orange)}
.ticker__team{color:rgba(255,255,255,.78)}
.ticker__score{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:.1em;
  transition:color .25s var(--ease);
}
.ticker__status{color:var(--muted);flex:0 0 auto}
.ticker__more{
  margin-left:auto;
  color:var(--cyan);
  border-bottom:1px solid rgba(56,242,198,.4);
  flex:0 0 auto;
}

/* ---------- 12. 头部：品牌 / 导航 ---------- */
.header-bar{
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,30px);
  padding-block:14px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  display:inline-block;
  padding:7px 10px;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--ink-900);
  background:var(--cyan);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-display);font-size:20px;font-weight:700;letter-spacing:.02em}
.brand__suffix{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.22em;
  color:var(--muted);
}
.primary-nav{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}
.primary-nav__list{display:flex;align-items:center;gap:2px}
.primary-nav__link{
  position:relative;
  display:block;
  padding:10px 12px;
  font-size:15px;
  letter-spacing:.04em;
  color:rgba(255,255,255,.78);
  transition:color .25s var(--ease);
}
.primary-nav__link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s var(--ease);
}
.primary-nav__link:hover{color:var(--white)}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--cyan)}
.primary-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.header-actions{display:flex;gap:10px;align-items:center}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--cyan);
  border:1px solid rgba(56,242,198,.45);
  cursor:pointer;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background-color .25s var(--ease),color .25s var(--ease);
}
.nav-toggle__bars{
  position:relative;
  display:inline-block;
  width:16px;height:2px;
  background:currentColor;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;left:0;
  width:16px;height:2px;
  background:currentColor;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"]{background:var(--cyan);color:var(--ink-900);border-color:var(--cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- 13. 头部：左侧框架竖轨 ---------- */
.site-rail{display:none}
.nav-scrim{
  position:fixed;
  inset:0;
  z-index:55;
  background:rgba(4,17,14,.66);
  opacity:0;
  visibility:hidden;
  transition:opacity .34s var(--ease),visibility .34s var(--ease);
}
.nav-scrim[data-open]{opacity:1;visibility:visible}

/* ---------- 14. 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid rgba(56,242,198,.16);
  color:var(--white);
}
.footer-band{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1.4fr) minmax(0,1fr);
  gap:clamp(24px,3.4vw,56px);
  padding-block:clamp(40px,5.4vw,76px);
}
.footer-brand-block{max-width:40ch}
.footer-brand{
  font-family:var(--font-display);
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.15;
  letter-spacing:-.01em;
}
.footer-tagline{
  margin-top:8px;
  font-size:13px;
  letter-spacing:.2em;
  color:var(--cyan);
}
.footer-note{
  margin-top:16px;
  font-size:13px;
  line-height:1.8;
  color:var(--muted);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2vw,28px);
}
.footer-col__title{
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  padding-bottom:10px;
  margin-bottom:14px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-col__list{display:flex;flex-direction:column;gap:10px}
.footer-col__link{
  font-size:15px;
  color:rgba(255,255,255,.76);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.footer-col__link:hover{color:var(--cyan);padding-left:6px}
.footer-contact__list{display:flex;flex-direction:column;gap:14px}
.footer-contact__item{display:flex;flex-direction:column;gap:4px}
.footer-contact__label{
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.footer-contact__value{font-size:14px;line-height:1.6;color:rgba(255,255,255,.88);word-break:break-word}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-block:20px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal__link{color:var(--muted);border-bottom:1px solid rgba(143,163,156,.35)}
.footer-legal__link:hover{color:var(--cyan);border-bottom-color:rgba(56,242,198,.6)}

/* ---------- 15. 悬浮快捷球 ---------- */
.speed-dial{
  position:fixed;
  right:clamp(14px,2vw,28px);
  bottom:clamp(14px,2vw,28px);
  z-index:65;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
}
.speed-dial__toggle{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 18px;
  background:var(--cyan);
  color:var(--ink-900);
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  cursor:pointer;
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
  transition:background-color .25s var(--ease);
}
.speed-dial__toggle:hover{background:#6BFFDA}
.speed-dial__icon{position:relative;display:inline-block;width:12px;height:12px;transition:transform .3s var(--ease)}
.speed-dial__icon::before,
.speed-dial__icon::after{content:"";position:absolute;background:currentColor}
.speed-dial__icon::before{left:0;top:5px;width:12px;height:2px}
.speed-dial__icon::after{left:5px;top:0;width:2px;height:12px}
[data-speed-dial][data-open] .speed-dial__icon{transform:rotate(45deg)}
.speed-dial__menu{
  display:flex;
  flex-direction:column;
  gap:8px;
  min-width:150px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
}
[data-speed-dial][data-open] .speed-dial__menu{opacity:1;visibility:visible;transform:none}
.speed-dial__link{
  display:block;
  width:100%;
  padding:10px 16px;
  font-size:13px;
  letter-spacing:.08em;
  text-align:center;
  color:var(--white);
  background:var(--ink-700);
  border:1px solid rgba(56,242,198,.34);
  cursor:pointer;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.speed-dial__link:hover{background:var(--ink-900);color:var(--cyan)}
.speed-dial__link--action{background:var(--ink-900)}

/* ---------- 16. 显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 17. 焦点 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.section--paper :focus-visible,.panel--paper :focus-visible{outline-color:var(--teal-ink)}
#main-content:focus{outline:none}

/* ---------- 18. 断点：平板 ---------- */
@media (min-width:901px) and (max-width:1150px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:1150px){
  .header-actions .btn{padding:10px 14px;font-size:13px}
  .primary-nav__link{padding:10px 9px;font-size:14px}
}

/* ---------- 19. 断点：移动端导航 ---------- */
@media (max-width:900px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .nav-toggle{display:inline-flex;position:relative;z-index:80;margin-left:auto}
  .primary-nav{
    position:fixed;
    top:0;left:0;bottom:0;
    width:min(80vw,320px);
    z-index:70;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    margin:0;
    padding:76px 22px 34px;
    background:var(--ink-900);
    border-right:1px solid rgba(56,242,198,.28);
    overflow-y:auto;
    transform:translateX(-100%);
    visibility:hidden;
    transition:transform .42s var(--ease),visibility .42s var(--ease);
  }
  .primary-nav[data-open]{transform:none;visibility:visible}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .primary-nav__list li + li{border-top:1px solid rgba(255,255,255,.07)}
  .primary-nav__link{padding:14px 4px;font-size:17px;letter-spacing:.06em}
  .primary-nav__link::after{left:4px;right:auto;bottom:9px;width:24px}
  .header-actions{flex-direction:column;width:100%;margin-top:22px;gap:10px}
  .header-actions .btn{width:100%;padding:13px 18px;font-size:14px}
  .footer-band{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:26px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .speed-dial__text{display:none}
  .speed-dial__toggle{padding:14px}
}

/* ---------- 20. 断点：桌面框架竖轨 ---------- */
@media (min-width:1100px){
  body{padding-left:var(--rail-w)}
  .site-rail{
    display:flex;
    position:fixed;
    left:0;top:0;bottom:0;
    width:var(--rail-w);
    z-index:50;
    flex-direction:column;
    align-items:center;
    justify-content:flex-end;
    gap:18px;
    padding-bottom:30px;
    background:var(--ink-900);
    border-right:1px solid rgba(56,242,198,.16);
  }
  .site-rail__text{
    writing-mode:vertical-rl;
    transform:rotate(180deg);
    font-size:11px;
    letter-spacing:.34em;
    text-transform:uppercase;
    color:var(--muted);
  }
  .site-rail__track{
    position:relative;
    width:2px;
    height:120px;
    background:rgba(255,255,255,.14);
    overflow:hidden;
  }
  .site-rail__bar{
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,var(--cyan),var(--orange));
    transform:scaleY(0);
    transform-origin:top center;
  }
  .site-rail__dot{
    width:8px;height:8px;
    background:var(--cyan);
    clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
  }
}

/* ---------- 21. 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::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}
  .site-rail__bar{transition:none}
}