*,*::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}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{background:none;border:0;cursor:pointer;font:inherit;color:inherit}
:focus-visible{outline:2px solid #E6A23C;outline-offset:3px}

:root{
  --navy:#0B2239;
  --navy-2:#123A5C;
  --ink:#06121E;
  --mist:#E4E8EA;
  --aqua:#D6EAF0;
  --paper:#F7F3E8;
  --stone:#6C7A84;
  --amber:#E6A23C;
  --amber-deep:#A96618;
  --white:#FFFFFF;
  --line:rgba(11,34,57,.14);
  --line-light:rgba(214,234,240,.18);
  --font-head:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --rail-w:264px;
  --shell:1180px;
  --radius:4px;
  --shadow-1:0 1px 0 rgba(6,18,30,.06),0 16px 36px -24px rgba(6,18,30,.6);
  --scroll-progress:0;
}

body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
main{display:block;flex:1 0 auto}
@media (min-width:1001px){body{padding-left:var(--rail-w)}}

h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;line-height:1.14;letter-spacing:-.02em;color:var(--ink);text-wrap:balance}
h1{font-size:clamp(48px,7vw,92px)}
h2{font-size:clamp(32px,4vw,54px)}
h3{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.01em}
h4{font-size:19px;line-height:1.4}
p{font-size:inherit}
strong{font-weight:700;color:var(--ink)}

.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:10px 16px;border-radius:3px;
  background:var(--amber);color:var(--navy);
  font-family:var(--font-head);font-weight:700;font-size:14px;
  box-shadow:0 14px 30px -14px rgba(6,18,30,.8);
  transform:translateY(-190%);
  transition:transform .2s ease;
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 头部：侧边路径轨道 ---------- */
.site-header{
  position:fixed;top:0;left:0;bottom:0;z-index:80;
  width:var(--rail-w);
  display:grid;
  grid-template-rows:auto 1fr auto;
  padding:22px 0 14px;
  background:linear-gradient(180deg,var(--navy) 0%,#0A2035 52%,var(--ink) 100%);
  color:var(--aqua);
  border-right:1px solid var(--line-light);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.site-header::after{
  content:"";position:absolute;top:0;right:0;width:6px;height:100%;
  background-image:repeating-linear-gradient(180deg,rgba(214,234,240,.20) 0 1px,transparent 1px 16px);
  pointer-events:none;
}
.header-top{display:block;padding:0}
.brand{
  display:flex;align-items:center;gap:12px;
  padding:0 20px 18px;margin-bottom:4px;
  border-bottom:1px solid rgba(214,234,240,.13);
}
.brand__mark{
  flex:0 0 44px;width:44px;height:44px;
  display:grid;place-items:center;
  background:rgba(18,58,92,.7);
  border:1px solid rgba(230,162,60,.8);
  border-radius:4px;box-shadow:inset 0 0 0 3px rgba(11,34,57,.9);
  font-family:var(--font-mono);font-weight:700;font-size:15px;letter-spacing:.04em;
  color:var(--amber);
}
.brand__type{display:block;min-width:0}
.brand__line{display:block;font-family:var(--font-head);font-weight:800;font-size:17px;line-height:1.2;letter-spacing:.02em;color:var(--white)}
.brand__sub{display:block;margin-top:4px;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;color:rgba(214,234,240,.6)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:8px 13px;border-radius:3px;
  border:1px solid rgba(214,234,240,.35);
  color:var(--aqua);
  font-family:var(--font-head);font-weight:700;font-size:13.5px;letter-spacing:.04em;
}
.nav-toggle:hover{border-color:var(--amber);color:var(--white)}
.nav-toggle__bars{display:flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .22s ease}
.nav-toggle__text{white-space:nowrap}

.site-nav{display:flex;flex-direction:column;padding:18px 14px 0;min-height:0}
.nav-list{display:flex;flex-direction:column;gap:2px}
.nav-list__item{display:block}
.nav-link{
  display:grid;grid-template-columns:28px 1fr;align-items:center;gap:8px;
  padding:10px 12px;
  border-left:2px solid transparent;border-radius:0 3px 3px 0;
  color:rgba(214,234,240,.84);
  font-family:var(--font-head);font-weight:600;font-size:15px;line-height:1.3;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-link__num{font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.06em;color:rgba(214,234,240,.42);transition:color .18s ease}
.nav-link__text{display:block}
.nav-link:hover{background:rgba(214,234,240,.08);color:var(--white);border-left-color:rgba(230,162,60,.72)}
.nav-link:hover .nav-link__num{color:var(--amber)}
.nav-link[aria-current="page"]{background:rgba(230,162,60,.14);border-left-color:var(--amber);color:var(--white)}
.nav-link[aria-current="page"] .nav-link__num{color:var(--amber)}

.nav-foot{margin-top:auto;padding:22px 12px 6px}
.nav-cta{width:100%}
.nav-note{margin-top:11px;font-family:var(--font-mono);font-size:10.5px;line-height:1.75;letter-spacing:.08em;color:rgba(214,234,240,.48)}

.header-foot{padding:12px 20px 4px;border-top:1px solid rgba(214,234,240,.12)}
.header-foot__meta{margin-top:9px;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;color:rgba(214,234,240,.42)}
.rail-progress{height:2px;border-radius:2px;background:rgba(214,234,240,.14);overflow:hidden}
.rail-progress__bar{display:block;height:100%;width:calc(var(--scroll-progress,0) * 100%);background:linear-gradient(90deg,var(--amber),#F2C078)}

.quick-dock{
  position:fixed;z-index:85;right:0;top:50%;
  display:flex;flex-direction:column;
  padding:9px 10px 10px;
  background:rgba(11,34,57,.97);
  border:1px solid var(--line-light);border-right:0;
  border-radius:5px 0 0 5px;
  box-shadow:-16px 0 36px -16px rgba(6,18,30,.7);
  transform:translate(105%,-50%);
  opacity:0;pointer-events:none;
  transition:transform .34s cubic-bezier(.22,.7,.3,1),opacity .26s ease;
}
body[data-scrolled="true"] .quick-dock{transform:translate(0,-50%);opacity:1;pointer-events:auto}
.dock-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:2px 2px 7px;border-bottom:1px solid var(--line-light)}
.dock-title{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;color:rgba(214,234,240,.55)}
.dock-toggle{display:grid;place-items:center;width:22px;height:22px;border-radius:3px;border:1px solid rgba(214,234,240,.22);color:rgba(214,234,240,.8)}
.dock-toggle:hover{color:var(--amber);border-color:rgba(230,162,60,.65)}
.dock-toggle__icon{transition:transform .22s ease}
.quick-dock[data-collapsed="true"] .dock-toggle__icon{transform:rotate(180deg)}
.dock-list{margin-top:6px;display:flex;flex-direction:column;gap:1px}
.dock-link{
  display:flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:3px;white-space:nowrap;
  font-family:var(--font-head);font-weight:600;font-size:13px;
  color:rgba(214,234,240,.86);
  transition:background .18s ease,color .18s ease;
}
.dock-link:hover{background:rgba(214,234,240,.1);color:var(--white)}
.dock-link__dot{flex:none;width:5px;height:5px;border-radius:50%;background:var(--amber)}
.quick-dock[data-collapsed="true"] .dock-list{display:none}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:3px;border:1px solid transparent;
  font-family:var(--font-head);font-weight:700;font-size:14.5px;letter-spacing:.02em;line-height:1.3;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn--amber{background:var(--amber);color:var(--navy);border-color:rgba(169,102,24,.55)}
.btn--amber:hover{background:var(--amber-deep);color:var(--white);border-color:var(--amber-deep)}
.btn--ghost{background:transparent;color:var(--aqua);border-color:rgba(214,234,240,.42)}
.btn--ghost:hover{background:rgba(214,234,240,.12);color:var(--white);border-color:var(--aqua)}
.btn--ink{background:var(--navy);color:var(--white)}
.btn--ink:hover{background:var(--navy-2)}

/* ---------- 正文容器 / 网格 / 基础组件 ---------- */
.page-shell{
  width:100%;
  max-width:calc(var(--shell) + 2 * clamp(18px,4vw,56px));
  margin-inline:auto;
  padding:clamp(28px,4vw,56px) clamp(18px,4vw,56px);
}
.prose{max-width:38em}
.prose p+p{margin-top:1.05em}
.mono{font-family:var(--font-mono);font-weight:600;letter-spacing:.03em}
.kicker{margin:0;font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.22em;color:var(--stone);text-transform:uppercase}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--stone)}
.breadcrumb a{color:var(--navy-2);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--amber-deep);border-bottom-color:rgba(169,102,24,.6)}
.breadcrumb__sep{color:rgba(108,122,132,.55)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}

.panel{
  padding:clamp(18px,2.2vw,26px);
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--white);
}
.panel--glass{
  background:linear-gradient(180deg,rgba(255,255,255,.86),rgba(214,234,240,.6));
  border-color:rgba(11,34,57,.10);
  box-shadow:var(--shadow-1);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.panel--aqua{background:var(--aqua);border-color:rgba(11,34,57,.10)}
.panel--navy{background:var(--navy);border-color:var(--line-light);color:rgba(214,234,240,.86)}
.panel--navy h3,.panel--navy h4{color:var(--white)}

.exhibit-label{
  display:inline-flex;align-items:baseline;gap:10px;
  padding:6px 12px 6px 10px;
  background:var(--navy);color:var(--aqua);
  border-left:3px solid var(--amber);
  border-radius:0 3px 3px 0;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
}
.exhibit-label__num{color:var(--amber);font-weight:700}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;border-radius:999px;
  background:var(--aqua);color:var(--navy-2);
  border:1px solid rgba(11,34,57,.08);
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.04em;
}
.tag--amber{background:var(--amber);color:var(--navy);border-color:rgba(169,102,24,.5)}

.text-link{color:var(--navy-2);border-bottom:1px solid rgba(230,162,60,.65);transition:color .18s ease,border-color .18s ease}
.text-link:hover{color:var(--amber-deep);border-bottom-color:var(--amber-deep)}

.rule{height:1px;border:0;margin:clamp(24px,3vw,40px) 0;background:var(--line)}

.media-frame{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--mist);
  aspect-ratio:16/10;
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-caption{margin-top:9px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--stone)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;flex:0 0 auto;
  padding:clamp(38px,5vw,64px) 0 24px;
  background:linear-gradient(180deg,#0B2239 0%,#0A1D31 58%,#06121E 100%);
  color:rgba(214,234,240,.76);
  font-size:15px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--amber) 0%,rgba(230,162,60,.18) 44%,rgba(214,234,240,.22) 100%);
}
.footer-inner{max-width:calc(var(--shell) + 2 * clamp(18px,4vw,56px));margin-inline:auto;padding-inline:clamp(18px,4vw,56px)}
.footer-grid{display:grid;grid-template-columns:1.35fr .75fr 1.1fr;gap:clamp(26px,4vw,60px)}
.footer-brand__mark{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:800;font-size:22px;letter-spacing:-.01em;color:var(--white)}
.footer-brand__mark::before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;background:var(--amber)}
.footer-brand__line{margin-top:10px;max-width:24em;font-size:15.5px;line-height:1.7;color:rgba(214,234,240,.82)}
.footer-brand__note{margin-top:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:rgba(214,234,240,.45)}
.footer-title{margin-bottom:14px;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.2em;color:var(--amber)}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{display:inline-block;padding-bottom:2px;font-size:15px;color:rgba(214,234,240,.8);border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.footer-list a:hover{color:var(--white);border-bottom-color:rgba(230,162,60,.7)}
.footer-contact__list{display:flex;flex-direction:column;gap:10px}
.footer-contact__list li{display:grid;grid-template-columns:48px 1fr;gap:10px;align-items:baseline;font-size:14.5px;line-height:1.65}
.footer-contact__key{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:rgba(214,234,240,.48)}
.footer-contact__val{color:rgba(214,234,240,.86);overflow-wrap:anywhere}
.footer-contact__note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(214,234,240,.52)}
.footer-update{
  margin-top:clamp(26px,3.4vw,40px);padding:12px 16px;
  border-left:3px solid rgba(230,162,60,.65);
  background:rgba(18,58,92,.45);
  border-radius:0 3px 3px 0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:rgba(214,234,240,.7);
}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 22px;
  margin-top:clamp(22px,3vw,34px);padding-top:18px;
  border-top:1px solid rgba(214,234,240,.14);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:rgba(214,234,240,.48);
}
.footer-base__icp{color:rgba(214,234,240,.62)}

/* ---------- 平板 / 手机 ---------- */
@media (max-width:1000px){
  .site-header{
    position:sticky;top:0;left:auto;bottom:auto;
    width:100%;height:auto;
    display:block;
    padding:10px 0 8px;
    overflow:visible;
    border-right:0;border-bottom:1px solid var(--line-light);
    box-shadow:0 12px 28px -24px rgba(6,18,30,.95);
  }
  .site-header::after{display:none}
  .header-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px}
  .brand{padding:0;margin:0;border-bottom:0;gap:10px}
  .brand__mark{flex-basis:38px;width:38px;height:38px;font-size:13px}
  .brand__line{font-size:15.5px}
  .brand__sub{margin-top:2px;font-size:10px;letter-spacing:.14em}
  .nav-toggle{display:inline-flex}
  .site-nav{display:block;max-height:0;overflow:hidden;padding:0 16px;transition:max-height .32s cubic-bezier(.3,.7,.3,1)}
  .site-header[data-open="true"] .site-nav{
    max-height:min(76vh,600px);overflow-y:auto;
    padding:14px 16px 18px;margin-top:10px;
    border-top:1px solid rgba(214,234,240,.14);
  }
  .nav-link{padding:12px 10px;font-size:16px}
  .nav-foot{padding:16px 0 0}
  .header-foot{display:none}
  .quick-dock{display:none}
}

@media (max-width:900px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  body{font-size:16.5px}
  .grid--12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr}
  .footer-base{flex-direction:column;align-items:flex-start}
  .footer-contact__list li{grid-template-columns:44px 1fr}
  .page-shell{padding-top:24px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}