/* =========================================================
   天梭赛事 / ARENA TISSOT — 共享站点套件
   文件：/assets/site.css
   承担：reset、变量、中文排版、命令栏头部、页脚、通用组件
   ========================================================= */

:root{
  --red:#D7263D;
  --red-deep:#A8122A;
  --blue:#0B1E36;
  --blue-deep:#071527;
  --blue-soft:#12294A;
  --teal:#35F2C8;
  --teal-ink:#0A4F42;
  --amber:#F4B942;
  --canvas:#F2EDE6;
  --canvas-2:#E3DCD1;
  --ink:#101820;
  --gray:#6B7280;
  --ice:#A9C7D9;
  --paper:#FFFFFF;
  --line:rgba(11,30,54,.14);
  --line-soft:rgba(11,30,54,.08);
  --line-invert:rgba(169,199,217,.20);
  --shell-w:1280px;
  --pad:clamp(18px,4vw,48px);
  --header-h:100px;
  --cut:22px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:"Archivo Black","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--teal);
  outline-offset:3px;
  box-shadow:0 0 0 4px rgba(11,30,54,.28);
  border-radius:2px;
}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  font-family:var(--font-body);
  font-size:clamp(15px,1.02vw,17px);
  line-height:1.75;
  color:var(--ink);
  background-color:var(--canvas);
  background-image:
    radial-gradient(1200px 620px at 8% -12%,#FCFAF6 0%,rgba(252,250,246,0) 62%),
    radial-gradient(900px 520px at 96% -4%,#E9E1D6 0%,rgba(233,225,214,0) 58%),
    linear-gradient(180deg,#F5F1EA 0%,#F2EDE6 46%,#EDE6DC 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body > main,.site-main{flex:1 0 auto;padding-block:clamp(18px,3vw,36px) clamp(32px,5vw,64px)}
#main-content:focus{outline:none}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--blue);
  text-wrap:balance;
}
h1{font-size:clamp(40px,6.2vw,88px)}
h2{font-size:clamp(26px,3.4vw,44px)}
h3{font-size:clamp(19px,2vw,25px)}
p{text-wrap:pretty}
strong{font-weight:700;color:var(--blue)}
code,kbd,samp{font-family:var(--font-mono);font-size:.92em}

/* ---------- 布局工具 ---------- */
.shell{
  width:100%;
  max-width:var(--shell-w);
  margin-inline:auto;
  padding-inline:var(--pad);
}
.flow > * + *{margin-top:var(--flow,1.15em)}
.layout-split{display:grid;gap:clamp(22px,4vw,52px)}
.layout-split--rev > :first-child{order:2}
@media (min-width:900px){
  .layout-split{grid-template-columns:minmax(0,7fr) minmax(0,4fr);align-items:start}
  .layout-split--rev{grid-template-columns:minmax(0,4fr) minmax(0,7fr)}
  .layout-split--rev > :first-child{order:0}
}

/* ---------- 章节与文本 ---------- */
.section{padding-block:clamp(38px,6vw,80px)}
.section--blue{
  background:linear-gradient(150deg,var(--blue) 0%,var(--blue-deep) 100%);
  color:rgba(242,237,230,.88);
  border-block:1px solid var(--line-invert);
}
.section--blue h1,.section--blue h2,.section--blue h3{color:var(--paper)}
.blueprint{
  background-image:
    linear-gradient(rgba(11,30,54,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,30,54,.07) 1px,transparent 1px);
  background-size:56px 56px;
  background-position:-1px -1px;
}
.section--blue.blueprint{
  background-image:
    linear-gradient(rgba(169,199,217,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(169,199,217,.10) 1px,transparent 1px);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--red);
}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor}
.section--blue .eyebrow{color:var(--teal)}
.section-title{font-size:clamp(26px,3.4vw,44px);margin-top:10px}
.section__head{display:grid;gap:8px;margin-bottom:clamp(20px,3vw,36px)}
.lede{
  font-size:clamp(16px,1.25vw,18.5px);
  color:#39424D;
  max-width:64ch;
}
.section--blue .lede{color:rgba(242,237,230,.82)}

/* ---------- 按钮 ---------- */
.btn{
  --btn-bg:var(--blue);
  --btn-fg:var(--paper);
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.04em;
  color:var(--btn-fg);
  background:var(--btn-bg);
  border:0;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transition:background .25s var(--ease),color .25s var(--ease),transform .2s var(--ease);
}
.btn:focus-visible{
  outline:none;
  box-shadow:inset 0 0 0 2px var(--teal),0 0 0 3px rgba(53,242,200,.28);
}
.btn--primary{--btn-bg:var(--red);--btn-fg:#fff}
.btn--primary:hover,.btn--primary:focus-visible{--btn-bg:var(--teal);--btn-fg:var(--blue-deep)}
.btn--ghost{--btn-bg:transparent;--btn-fg:var(--paper);box-shadow:inset 0 0 0 1px rgba(169,199,217,.45)}
.btn--ghost:hover,.btn--ghost:focus-visible{
  --btn-fg:var(--teal);
  box-shadow:inset 0 0 0 1px var(--teal);
  background:rgba(53,242,200,.10);
}
.btn--sm{padding:9px 15px;font-size:12.5px;letter-spacing:.08em}
.btn:active{transform:translateY(1px)}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:999;
  padding:10px 18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--blue-deep);
  background:var(--teal);
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{
  transform:translateY(0);
  outline:2px solid var(--blue);
  outline-offset:2px;
}

/* =========================================================
   头部：刻度轨道 + 命令栏
   ========================================================= */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  color:var(--paper);
  background:linear-gradient(180deg,#0B1E36 0%,#09182B 100%);
  border-bottom:1px solid rgba(53,242,200,.24);
  box-shadow:0 16px 34px -28px rgba(7,21,39,.95);
}
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  overflow:hidden;
  background:rgba(169,199,217,.16);
  pointer-events:none;
}
.scroll-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--red) 0%,#F4623A 42%,var(--teal) 100%);
  transition:width .12s linear;
}

.header-rail{
  background:rgba(7,21,39,.92);
  border-bottom:1px solid rgba(169,199,217,.14);
}
.header-rail__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:36px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(169,199,217,.85);
}
.rail-meta{display:flex;align-items:center;gap:10px;white-space:nowrap;min-width:0}
.rail-meta__coord{color:var(--teal);letter-spacing:.1em}
.rail-meta__sep{display:inline-block;width:18px;height:1px;background:rgba(169,199,217,.5)}
.rail-meta__text{overflow:hidden;text-overflow:ellipsis}
.rail-clock{display:flex;align-items:center;gap:8px;white-space:nowrap}
.rail-clock__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px rgba(53,242,200,.16);
  animation:rail-pulse 2.6s ease-in-out infinite;
}
.rail-clock__label{color:rgba(169,199,217,.8)}
.rail-clock__time{
  font-family:var(--font-mono);
  font-size:12px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
  color:var(--paper);
}
.rail-links{display:flex;align-items:center;gap:16px;white-space:nowrap}
.rail-link{position:relative;color:rgba(169,199,217,.85);transition:color .2s var(--ease)}
.rail-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-3px;
  height:1px;
  background:var(--teal);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.rail-link:hover,.rail-link:focus-visible{color:var(--teal)}
.rail-link:hover::after,.rail-link:focus-visible::after{transform:scaleX(1)}

.cmd-bar__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(10px,2vw,30px);
  min-height:70px;
  transition:min-height .3s var(--ease);
}
.site-header.is-scrolled .cmd-bar__inner{min-height:58px}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.brand__mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--blue-deep);
  background:var(--teal);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.brand:hover .brand__mark,.brand:focus-visible .brand__mark{background:var(--red);color:#fff}
.brand__text{display:flex;flex-direction:column;line-height:1.05;min-width:0}
.brand__cn{font-family:var(--font-display);font-size:16.5px;letter-spacing:.03em;color:var(--paper)}
.brand__lat{
  margin-top:3px;
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--teal);
}

.site-nav{min-width:0;display:block}
.nav-list{display:flex;align-items:center;gap:2px;justify-content:center}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:10px 9px;
  font-size:14px;
  font-weight:500;
  letter-spacing:.01em;
  color:rgba(242,237,230,.78);
  transition:color .25s var(--ease);
}
.nav-link__index{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:rgba(53,242,200,.55);
  transition:color .25s var(--ease);
}
.nav-link::before{
  content:"";
  position:absolute;
  inset:2px 3px;
  background:linear-gradient(180deg,rgba(53,242,200,.18),rgba(53,242,200,0));
  opacity:0;
  transform:translateY(5px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
  pointer-events:none;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:9px;right:9px;bottom:3px;
  height:2px;
  background:var(--red);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--paper)}
.nav-link:hover::before,.nav-link:focus-visible::before{opacity:1;transform:translateY(0)}
.nav-link:hover .nav-link__index,.nav-link:focus-visible .nav-link__index{color:var(--teal)}
.nav-link[aria-current="page"]{color:var(--paper)}
.nav-link[aria-current="page"] .nav-link__index{color:var(--teal)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.cmd-bar__actions{display:flex;align-items:center;gap:8px;justify-self:end}
.cmd-cta__short{display:none}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 11px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--paper);
  border:1px solid rgba(169,199,217,.38);
  background:rgba(255,255,255,.03);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--teal);background:rgba(53,242,200,.10)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bar{
  display:block;
  width:100%;
  height:2px;
  background:var(--teal);
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

@keyframes rail-pulse{
  0%,100%{box-shadow:0 0 0 3px rgba(53,242,200,.16)}
  50%{box-shadow:0 0 0 6px rgba(53,242,200,.05)}
}

/* ---------- 头部响应式 ---------- */
@media (max-width:1180px){
  .nav-link{font-size:13.2px;padding-inline:7px}
  .brand__lat{letter-spacing:.22em}
}
@media (max-width:1050px){
  .cmd-bar__actions .btn--ghost{display:none}
}
@media (max-width:959px){
  .cmd-bar__inner{grid-template-columns:auto 1fr auto}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    z-index:95;
    display:block;
    padding:6px var(--pad) 22px;
    background:linear-gradient(180deg,#0B1E36 0%,#071527 100%);
    border-bottom:1px solid rgba(53,242,200,.26);
    box-shadow:0 26px 44px -22px rgba(0,0,0,.7);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease);
  }
  .site-header[data-open="true"] .site-nav{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item + .nav-item{border-top:1px solid rgba(169,199,217,.14)}
  .nav-link{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:14px 6px;
    font-size:15px;
  }
  .nav-link__index{order:2;font-size:11px}
  .nav-link::before{display:none}
  .nav-link::after{left:6px;right:auto;width:22px;bottom:8px}
  .nav-link[aria-current="page"]{background:rgba(53,242,200,.08)}
  .nav-toggle{display:inline-flex}
  .cmd-bar__actions{gap:6px}
}
@media (max-width:720px){
  .rail-links{display:none}
}
@media (max-width:639px){
  .rail-meta__text,.rail-meta__sep{display:none}
  .cmd-cta__full{display:none}
  .cmd-cta__short{display:inline}
  .brand__lat{display:none}
  .cmd-bar__inner{min-height:62px}
  .site-header.is-scrolled .cmd-bar__inner{min-height:56px}
}
@media (max-width:420px){
  .rail-meta{display:none}
  .header-rail__inner{justify-content:space-between}
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  margin-top:clamp(48px,7vw,110px);
  padding-block:clamp(48px,6vw,88px) 26px;
  color:rgba(242,237,230,.86);
  background:linear-gradient(158deg,#0B1E36 0%,#071527 58%,#0A1A2E 100%);
  clip-path:polygon(0 30px,100% 0,100% 100%,0 100%);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  opacity:.7;
  background-image:
    linear-gradient(rgba(169,199,217,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(169,199,217,.09) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95),rgba(0,0,0,0) 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.95),rgba(0,0,0,0) 88%);
  pointer-events:none;
}
.footer__inner{position:relative}
.footer__top{display:grid;gap:clamp(28px,4vw,48px)}
@media (min-width:960px){
  .footer__top{grid-template-columns:minmax(230px,300px) minmax(0,1fr);gap:clamp(32px,5vw,72px)}
}
.footer-brand{min-width:0}
.footer-brand__link{display:inline-flex;align-items:center;gap:12px}
.footer-brand__mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:700;
  color:var(--blue-deep);
  background:var(--teal);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.footer-brand__link:hover .footer-brand__mark,.footer-brand__link:focus-visible .footer-brand__mark{background:var(--red);color:#fff}
.footer-brand__text{display:flex;flex-direction:column;line-height:1.06}
.footer-brand__cn{font-family:var(--font-display);font-size:19px;letter-spacing:.02em;color:var(--paper)}
.footer-brand__lat{
  margin-top:4px;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--teal);
}
.footer-brand__line{
  position:relative;
  margin-top:18px;
  padding-left:14px;
  font-family:var(--font-serif);
  font-size:14px;
  letter-spacing:.02em;
  color:rgba(242,237,230,.74);
}
.footer-brand__line::before{
  content:"";
  position:absolute;
  left:0;
  top:.35em;
  bottom:.35em;
  width:3px;
  background:var(--red);
}

.footer-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
@media (min-width:768px){.footer-nav{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:1120px){.footer-nav{grid-template-columns:repeat(5,minmax(0,1fr));gap:20px 18px}}
.footer-col{min-width:0}
.footer-col__title{
  display:flex;
  align-items:baseline;
  gap:8px;
  margin-bottom:12px;
  font-family:var(--font-body);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--paper);
}
.footer-col__index{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--teal);
}
.footer-col__list{display:grid;gap:8px;font-size:13.5px;color:rgba(242,237,230,.68)}
.footer-col__list a{
  position:relative;
  display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col__list a:hover,.footer-col__list a:focus-visible{color:var(--teal);transform:translateX(2px)}

.footer-contact{
  margin-top:clamp(32px,4vw,56px);
  padding-top:clamp(22px,3vw,36px);
  border-top:1px solid rgba(169,199,217,.18);
}
.footer-contact__title{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--teal);
}
.contact-list{display:grid;gap:10px}
@media (min-width:768px){.contact-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 40px}}
.contact-list__item{display:flex;align-items:baseline;gap:12px;font-size:13.5px;line-height:1.6}
.contact-list__key{
  flex:0 0 auto;
  min-width:38px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:rgba(169,199,217,.85);
}
.contact-list__val{color:rgba(242,237,230,.9);word-break:break-word}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 24px;
  margin-top:clamp(28px,4vw,44px);
  padding-top:18px;
  border-top:1px solid rgba(169,199,217,.18);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:rgba(169,199,217,.72);
}
.footer-base__copy{text-transform:uppercase}
.legal-links{display:flex;flex-wrap:wrap;gap:8px 18px}
.legal-links a{transition:color .2s var(--ease)}
.legal-links a:hover,.legal-links a:focus-visible{color:var(--teal)}
.footer-base__icp{margin-left:auto;color:rgba(169,199,217,.55)}
@media (max-width:639px){.footer-base__icp{margin-left:0}}

/* =========================================================
   通用组件
   ========================================================= */
.breadcrumbs{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--gray);
}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs__item::after{content:"/";color:var(--ice)}
.breadcrumbs__item:last-child::after{content:none}
.breadcrumbs__link{transition:color .2s var(--ease)}
.breadcrumbs__link:hover,.breadcrumbs__link:focus-visible{color:var(--red)}
.breadcrumbs [aria-current="page"]{color:var(--blue)}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,32px);
  background:var(--paper);
  border:1px solid var(--line);
}
.panel--cut{
  border:0;
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
  box-shadow:inset 0 0 0 1px var(--line);
}
.panel--ink{
  background:linear-gradient(150deg,var(--blue) 0%,var(--blue-deep) 100%);
  color:rgba(242,237,230,.88);
  border-color:var(--line-invert);
  box-shadow:inset 0 0 0 1px var(--line-invert);
}
.panel--ink h2,.panel--ink h3,.panel--ink h4{color:var(--paper)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--blue);
  background:var(--canvas-2);
  border-radius:2px;
}
.tag--teal{background:rgba(53,242,200,.22);color:var(--teal-ink)}
.tag--amber{background:rgba(244,185,66,.26);color:#7A5206}
.tag--live{background:var(--red);color:#fff}

.stat{display:grid;gap:4px}
.stat__value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3vw,40px);
  font-weight:700;
  line-height:1.05;
  letter-spacing:-.02em;
  color:var(--blue);
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gray);
}
.section--blue .stat__value,.panel--ink .stat__value{color:var(--teal)}
.section--blue .stat__label,.panel--ink .stat__label{color:rgba(169,199,217,.85)}

.tabs{display:block}
.tablist{
  display:flex;
  flex-wrap:wrap;
  gap:4px;
  border-bottom:1px solid var(--line);
}
.tab{
  position:relative;
  padding:10px 16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gray);
  border-radius:2px 2px 0 0;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.tab:hover{color:var(--blue)}
.tab[aria-selected="true"]{color:var(--blue);background:rgba(53,242,200,.16)}
.tab[aria-selected="true"]::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:var(--red);
}
.tabpanel{padding-top:clamp(16px,2vw,26px)}
.tabpanel[hidden]{display:none}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  isolation:isolate;
  background:linear-gradient(150deg,var(--blue) 0%,var(--blue-deep) 100%);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.media-frame img,.media-frame video{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.06) contrast(1.04);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  opacity:.55;
  mix-blend-mode:screen;
  background-image:
    linear-gradient(rgba(53,242,200,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(53,242,200,.10) 1px,transparent 1px);
  background-size:44px 44px;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__ph{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  padding:16px;
  text-align:center;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(169,199,217,.6);
}
.media-frame__tag{
  position:absolute;
  left:0;
  bottom:0;
  z-index:3;
  padding:6px 13px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:#fff;
  background:var(--red);
}

[data-countdown]{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
[data-countdown][data-state="final"]{color:var(--red)}
.section--blue [data-countdown][data-state="final"],.panel--ink [data-countdown][data-state="final"]{color:var(--amber)}

/* ---------- 滚动显现 ---------- */
.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
.js-ready [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 动效可访问性 ---------- */
@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;
  }
  .js-ready [data-reveal]{opacity:1 !important;transform:none !important}
  .rail-clock__dot{animation:none}
}