:root{
  --night:#0B1B2B;
  --deep:#13293F;
  --edge:#26405A;
  --stone:#4A5259;
  --cream:#F4EFE6;
  --moss:#5C7A55;
  --clay:#B65C3A;
  --cyan:#2FE6C8;
  --orange:#FF7A29;
  --gold:#E8C87A;
  --text:rgba(244,239,230,.87);
  --text-dim:rgba(244,239,230,.62);
  --shell:1240px;
  --gutter:clamp(16px,3.6vw,40px);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:26px;
  --r-pill:999px;
  --font-display:"Archivo Narrow","Oswald","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font-body:"Noto Sans SC","Inter",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --shadow-soft:0 22px 46px -28px rgba(0,0,0,.78);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--night);
  background-image:
    linear-gradient(rgba(38,64,90,.22) 1px,transparent 1px),
    linear-gradient(90deg,rgba(38,64,90,.22) 1px,transparent 1px),
    radial-gradient(900px 520px at 86% -12%,rgba(47,230,200,.10),transparent 68%),
    radial-gradient(760px 520px at 2% 26%,rgba(182,92,58,.10),transparent 70%);
  background-size:64px 64px,64px 64px,auto,auto;
}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--cream);font-weight:700;line-height:1.25}
strong{color:var(--cream)}
::selection{background:rgba(47,230,200,.28);color:var(--cream)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:min(100% - var(--gutter) * 2,var(--shell));margin-inline:auto}
.skip-link{
  position:absolute;left:var(--gutter);top:-70px;z-index:120;
  padding:10px 18px;border-radius:var(--r-pill);
  background:var(--cyan);color:#05131F;font-size:14px;font-weight:700;
  transition:top .18s ease;
}
.skip-link:focus{top:14px}

/* ---------- 头部：悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:14px var(--gutter) 0;
  background:linear-gradient(180deg,rgba(11,27,43,.94),rgba(11,27,43,0));
  transition:padding-top .2s ease;
}
.nav-shell{
  position:relative;
  width:min(100%,var(--shell));
  margin-inline:auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 14px 10px 18px;
  border:1px solid var(--edge);
  border-radius:var(--r-pill);
  background:rgba(19,41,63,.9);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-soft);
  transition:padding .2s ease,background-color .2s ease,border-color .2s ease;
}
.site-header.is-condensed{padding-top:6px}
.site-header.is-condensed .nav-shell{padding:6px 12px 6px 16px;background:rgba(11,27,43,.95);border-color:rgba(47,230,200,.28)}
.site-header.is-condensed .brand-line{opacity:0;max-height:0}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.brand-mark{
  position:relative;width:38px;height:38px;flex:0 0 auto;
  border-radius:12px;
  background:linear-gradient(140deg,var(--cyan),#167a6c 55%,var(--deep));
  box-shadow:inset 0 0 0 1px rgba(11,27,43,.5);
}
.brand-mark::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:16px;height:16px;border-radius:5px;
  background:var(--orange);
  box-shadow:0 0 0 2px rgba(11,27,43,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;font-size:19px;letter-spacing:-.02em;
  color:var(--cream);white-space:nowrap;
}
.brand-line{
  font-size:11.5px;color:var(--text-dim);letter-spacing:.02em;white-space:nowrap;
  overflow:hidden;transition:opacity .2s ease,max-height .2s ease;max-height:20px;
}
.nav{display:flex;align-items:center;gap:2px;margin-inline:auto;flex-wrap:nowrap}
.nav-link{
  display:inline-block;
  padding:9px 13px;border-radius:var(--r-pill);
  font-size:14.5px;color:rgba(244,239,230,.76);white-space:nowrap;
  transition:color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.nav-link:hover{color:var(--cream);background:rgba(47,230,200,.1)}
.nav-link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(47,230,200,.14);
  box-shadow:inset 0 0 0 1px rgba(47,230,200,.38);
}
.nav-link--cta{display:none}
.nav-side{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.status-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 12px;border-radius:var(--r-pill);
  font-size:12.5px;color:#c8dcc2;
  background:rgba(92,122,85,.2);
  border:1px solid rgba(92,122,85,.6);
  white-space:nowrap;
}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(47,230,200,.16)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:1px solid transparent;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;line-height:1.3;white-space:nowrap;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn--primary{background:linear-gradient(105deg,var(--orange),#ff9c55);color:#20100A;box-shadow:0 14px 28px -18px rgba(255,122,41,.95)}
.btn--primary:hover{transform:translateY(-2px)}
.btn--ghost{border-color:rgba(47,230,200,.45);background:rgba(47,230,200,.06);color:var(--cyan)}
.btn--ghost:hover{background:rgba(47,230,200,.15)}
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 14px;border:1px solid var(--edge);border-radius:var(--r-pill);
  background:rgba(19,41,63,.92);color:var(--cream);font-size:13.5px;cursor:pointer;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .18s ease,opacity .18s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.scroll-meter{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;border-radius:2px;pointer-events:none}
.scroll-meter__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--orange));transition:width .12s linear}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(56px,8vw,96px);
  background:var(--deep);
  border-top:1px solid rgba(47,230,200,.28);
}
.footer-rail{
  height:12px;
  background-image:repeating-linear-gradient(90deg,rgba(47,230,200,.45) 0 1px,transparent 1px 44px);
  background-position:left bottom;background-repeat:repeat-x;
  border-bottom:1px solid var(--edge);
}
.footer-inner{
  display:grid;gap:clamp(24px,3.4vw,44px);
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.35fr);
  padding-block:clamp(36px,5vw,64px);
}
.brand--footer .brand-mark{width:34px;height:34px;border-radius:11px}
.brand--footer .brand-name{font-size:20px}
.footer-lede{margin-top:14px;font-size:14.5px;color:var(--text-dim);max-width:34ch;line-height:1.7}
.footer-tags{margin-top:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;line-height:1.6;
  background:rgba(19,41,63,.85);border:1px solid var(--edge);color:var(--text-dim);
}
.chip--moss{background:rgba(92,122,85,.2);border-color:rgba(92,122,85,.72);color:#c8dcc2}
.chip--clay{background:rgba(182,92,58,.2);border-color:rgba(182,92,58,.72);color:#f0c6b2}
.chip--cyan{background:rgba(47,230,200,.1);border-color:rgba(47,230,200,.5);color:var(--cyan)}
.chip--gold{background:rgba(232,200,122,.12);border-color:rgba(232,200,122,.6);color:var(--gold)}
.footer-col__title{
  font-family:var(--font-serif);
  font-size:15px;font-weight:600;letter-spacing:.04em;
  color:var(--cream);margin-bottom:14px;
}
.footer-links li + li{margin-top:9px}
.footer-links a{
  font-size:14.5px;color:var(--text-dim);
  border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.footer-links a:hover{color:var(--cyan);border-color:rgba(47,230,200,.5)}
.contact-list li + li{margin-top:12px}
.contact-item{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px}
.contact-label{flex:0 0 auto;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--stone);text-transform:uppercase}
.contact-value{color:var(--cream);font-family:var(--font-mono);font-size:13.5px;word-break:break-all}
.copy-btn{
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--edge);background:transparent;
  font-size:11.5px;color:var(--text-dim);cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.copy-btn:hover{color:var(--cyan);border-color:rgba(47,230,200,.5)}
.copy-btn[data-copied="true"]{color:var(--cyan);border-color:rgba(47,230,200,.7);background:rgba(47,230,200,.12)}
.contact-note{margin-top:14px;font-size:13px;color:var(--text-dim);line-height:1.7;max-width:36ch}
.footer-contact .btn{margin-top:16px}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  padding-block:18px 28px;
  border-top:1px solid rgba(47,230,200,.35);
  font-size:12.5px;color:var(--text-dim);
}
.footer-copy{margin-right:auto}
.footer-icp{font-family:var(--font-mono);letter-spacing:.02em}
.footer-legal-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-legal-links a{transition:color .18s ease}
.footer-legal-links a:hover{color:var(--cyan)}

/* ---------- 通用组件 ---------- */
.eyebrow{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--cyan);
}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 28px;
  margin-bottom:clamp(20px,2.6vw,32px);padding-bottom:16px;
  border-bottom:1px solid var(--edge);
}
.section-head__title{font-family:var(--font-serif);font-weight:600;font-size:clamp(24px,3.2vw,34px);color:var(--cream)}
.section-head__lede{flex:1 1 260px;font-size:15px;color:var(--text-dim);max-width:54ch}
.divider{height:1px;background:linear-gradient(90deg,var(--edge),transparent);margin-block:clamp(28px,4vw,48px)}
.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--asym{grid-template-columns:minmax(0,1.62fr) minmax(0,1fr)}
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--text-dim);margin-bottom:18px}
.breadcrumb a{color:var(--text-dim);transition:color .18s ease}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb li + li::before{content:"/";margin-right:10px;color:var(--stone)}
.prose{max-width:68ch}
.prose p{margin-bottom:1.1em}
.prose h2{font-family:var(--font-serif);font-size:clamp(22px,2.6vw,28px);margin:1.6em 0 .7em}
.prose h3{font-size:19px;margin:1.4em 0 .6em;color:var(--cream)}
.prose ul{margin:0 0 1.1em;padding-left:1.1em;list-style:disc}
.prose li{margin-bottom:.5em}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(47,230,200,.4)}
.file-card{
  display:grid;grid-template-columns:6px minmax(0,1fr);
  background:var(--deep);border:1px solid var(--edge);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color .18s ease,transform .18s ease;
}
.file-card:hover{transform:translateY(-4px);border-color:rgba(47,230,200,.42)}
.file-card__tab{background:var(--moss)}
.file-card__body{padding:18px 20px}
.stat-card{
  padding:18px 20px;border-radius:var(--r-md);
  background:linear-gradient(150deg,rgba(19,41,63,.97),rgba(11,27,43,.92));
  border:1px solid var(--edge);
  transition:border-color .18s ease,transform .18s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(47,230,200,.42)}
.stat-card__value{
  display:block;font-family:var(--font-mono);font-weight:600;
  font-variant-numeric:tabular-nums;
  font-size:clamp(30px,4.2vw,44px);line-height:1.1;color:var(--cyan);
}
.stat-card__label{display:block;margin-top:6px;font-size:13.5px;color:var(--text-dim)}
.entry-card{
  display:flex;flex-direction:column;gap:10px;
  padding:20px 22px;border-radius:var(--r-md);
  background:var(--deep);border:1px solid var(--edge);
  transition:transform .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(47,230,200,.42)}
.entry-card__title{font-family:var(--font-serif);font-size:19px;font-weight:600;color:var(--cream);line-height:1.5}
.entry-card__meta{font-family:var(--font-mono);font-size:12.5px;color:var(--text-dim);margin-top:auto}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--edge);border-radius:var(--r-md);background:rgba(19,41,63,.6)}
.data-table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.data-table th,.data-table td{padding:12px 15px;text-align:left;border-bottom:1px solid rgba(38,64,90,.85)}
.data-table th{
  background:rgba(92,122,85,.22);color:var(--cream);
  font-weight:600;font-size:13.5px;white-space:nowrap;
}
.data-table tbody tr:hover{background:rgba(47,230,200,.05)}
.data-table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--cyan);text-align:right}
.media-frame{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--edge);
  background:linear-gradient(140deg,rgba(19,41,63,.98),rgba(11,27,43,.96) 55%,rgba(47,230,200,.12));
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(105deg,transparent 44%,rgba(47,230,200,.12) 50%,transparent 56%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.index-rail{
  position:sticky;top:104px;
  display:flex;flex-direction:column;gap:8px;
  padding:16px;border:1px solid var(--edge);border-radius:var(--r-lg);
  background:rgba(19,41,63,.7);
}
.index-link{
  display:block;padding:8px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-dim);
  border:1px solid transparent;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.index-link:hover{color:var(--cream);background:rgba(47,230,200,.08)}
.index-link[aria-current="true"]{
  color:var(--cyan);background:rgba(47,230,200,.1);border-color:rgba(47,230,200,.42);
}
.disclosure{
  border:1px solid var(--edge);border-radius:var(--r-md);
  background:var(--deep);overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.disclosure + .disclosure{margin-top:10px}
.disclosure[data-open="true"]{border-color:rgba(47,230,200,.42);box-shadow:inset 3px 0 0 var(--cyan)}
.disclosure__trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;border:0;background:none;text-align:left;
  font-size:16px;font-weight:600;color:var(--cream);cursor:pointer;
}
.disclosure__trigger::after{content:"+";font-family:var(--font-mono);color:var(--cyan);font-weight:400}
.disclosure[data-open="true"] .disclosure__trigger::after{content:"–"}
.disclosure__panel{display:none;padding:0 18px 18px;font-size:15px;line-height:1.75;color:var(--text)}
.disclosure[data-open="true"] .disclosure__panel{display:block}
.timeline{
  display:flex;align-items:stretch;overflow-x:auto;
  padding:18px 4px;border-top:1px solid var(--edge);border-bottom:1px solid var(--edge);
  -webkit-overflow-scrolling:touch;
}
.timeline__node{
  position:relative;flex:0 0 auto;min-width:148px;
  padding:14px 20px 14px 24px;border-left:1px dashed rgba(38,64,90,.9);
}
.timeline__node::before{
  content:"";position:absolute;left:-5px;top:22px;width:9px;height:9px;border-radius:50%;
  background:var(--stone);transition:background-color .18s ease,box-shadow .18s ease;
}
.timeline__node.is-active::before{background:var(--cyan);box-shadow:0 0 0 5px rgba(47,230,200,.16)}
.timeline__year{display:block;font-family:var(--font-mono);font-size:15px;color:var(--cream)}
.timeline__label{font-size:13px;color:var(--text-dim)}
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:80;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  border:1px solid var(--edge);background:rgba(19,41,63,.94);color:var(--cyan);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s,border-color .2s ease;
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:rgba(47,230,200,.55)}
[data-reveal]{transition:opacity .5s ease,transform .5s ease}
.has-js [data-reveal]{opacity:0;transform:translateY(12px)}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:8px 10px;font-size:14px}
  .status-pill{display:none}
}
@media (max-width:1040px){
  .nav{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:14px;
    border:1px solid var(--edge);border-radius:24px;
    background:rgba(11,27,43,.98);
    box-shadow:var(--shadow-soft);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s;
  }
  .nav[data-open="true"]{opacity:1;visibility:visible;transform:none}
  .nav-link{padding:12px 16px;font-size:16px;border-radius:14px}
  .nav-link--cta{
    display:block;margin-top:8px;text-align:center;
    background:var(--orange);color:#20100A;font-weight:700;
    border-radius:var(--r-pill);box-shadow:none;
  }
  .nav-link--cta:hover{color:#20100A;background:#ff9147}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta{display:none}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .grid--asym{grid-template-columns:minmax(0,1fr)}
  .index-rail{position:static;flex-direction:row;flex-wrap:wrap;top:auto}
}
@media (max-width:720px){
  body{font-size:16px}
  .site-header{padding-top:10px}
  .brand-line{display:none}
  .brand-name{font-size:17px}
  .brand-mark{width:32px;height:32px}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-inner{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .footer-copy{margin-right:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .data-table{min-width:440px}
  .to-top{right:14px;bottom:16px}
}

/* ---------- 无障碍与动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto}
  .has-js [data-reveal]{opacity:1;transform:none}
  .scroll-meter__bar{transition:none}
}