:root{
  --ink:#0B1B2B;
  --ink-deep:#06111B;
  --paper:#F2E7CF;
  --paper-dim:#D6C39E;
  --cinnabar:#D95D39;
  --cinnabar-lit:#FF926E;
  --jade:#4AD8C4;
  --terminal:#8AA9BC;
  --grid:#24445A;
  --sheet:#F4EAD5;
  --sheet-ink:#152431;

  --rail-w:136px;
  --maxw:1180px;
  --gutter:clamp(20px,5vw,64px);
  --gap:clamp(18px,2.4vw,32px);
  --progress:0;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth;}}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,address{margin:0;}
ul,ol{list-style:none;padding:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
img,svg{display:block;max-width:100%;}
table{border-collapse:collapse;width:100%;}
address{font-style:normal;}

:focus-visible{outline:2px solid var(--jade);outline-offset:3px;}
#main-content:focus{outline:none;}

body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16.5px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  overflow-x:hidden;
}
@media (min-width:1024px){
  body{padding-left:var(--rail-w);}
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.16;
  letter-spacing:.06em;
  color:var(--paper);
}
h1{font-size:clamp(30px,4.6vw,54px);}
h2{font-size:clamp(23px,3.2vw,38px);}
h3{font-size:clamp(17px,1.9vw,22px);letter-spacing:.05em;}
h4{font-size:clamp(15px,1.5vw,17px);letter-spacing:.05em;}

::selection{background:var(--cinnabar);color:#12100c;}

/* ---------- 通用布局 ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{
  padding-block:clamp(44px,7vw,96px);
  border-top:1px solid var(--grid);
}
.section--flush{border-top:0;padding-top:0;}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 32px;
  margin-bottom:clamp(24px,3vw,40px);
}
.grid{display:grid;gap:var(--gap);grid-template-columns:1fr;}
@media (min-width:900px){
  .grid--split{grid-template-columns:5fr 7fr;}
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--jade);
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;flex:none;}

.lede{
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.85;
  color:rgba(242,231,207,.78);
  max-width:60ch;
}
.prose{max-width:68ch;color:rgba(242,231,207,.86);}
.prose p+p{margin-top:1.05em;}
.mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--terminal);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.6em;
  padding:13px 22px;
  border:1px solid transparent;
  border-radius:0;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  line-height:1.2;
  text-align:center;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.btn--primary{background:var(--cinnabar);color:#12100c;}
.btn--primary:hover{background:var(--cinnabar-lit);}
.btn--ghost{border-color:var(--grid);color:var(--paper);}
.btn--ghost:hover{border-color:var(--cinnabar-lit);color:var(--cinnabar-lit);}
.btn--full{width:100%;}
.btn--rail{
  margin-left:14px;
  margin-right:14px;
  margin-top:auto;
  margin-bottom:8px;
  padding:11px 8px;
  font-size:12px;
  letter-spacing:.1em;
}

/* ---------- 状态标签 ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:4px 9px;
  border:1px solid var(--grid);
  border-radius:0;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--terminal);
  background:rgba(74,216,196,.04);
  white-space:nowrap;
}
.chip--live{color:var(--jade);border-color:rgba(74,216,196,.45);}
.chip--action{color:var(--cinnabar-lit);border-color:rgba(255,146,110,.42);background:rgba(217,93,57,.08);}
.chip--archived{color:var(--paper-dim);border-color:rgba(214,195,158,.34);background:transparent;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55em;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--terminal);
}
.crumbs li{display:inline-flex;align-items:center;gap:.55em;}
.crumbs li+li::before{content:"/";color:rgba(36,68,90,.95);}
.crumbs a{color:rgba(138,169,188,.95);transition:color .2s ease;}
.crumbs a:hover{color:var(--cinnabar-lit);}
.crumbs [aria-current="page"]{color:var(--paper);}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--grid);
  background:var(--ink-deep);
  aspect-ratio:16/10;
}
.media img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.03);}
.media--snapshot{aspect-ratio:16/9;}
.media--scan{aspect-ratio:3/4;background:var(--sheet);color:var(--sheet-ink);}
.media--scan img{mix-blend-mode:multiply;}
.media--terminal::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(11,27,43,.16) 0 1px,transparent 1px 3px);
  opacity:.55;
}
.media__caption{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--terminal);
}

/* ---------- 索引行 ---------- */
.index-list{border-top:1px solid var(--grid);}
.index-list__row{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:6px 18px;
  align-items:baseline;
  padding:15px 6px;
  border-bottom:1px solid var(--grid);
  transition:background .2s ease,padding-left .2s ease;
}
.index-list__row:hover{background:rgba(36,68,90,.26);padding-left:12px;}
.index-list__no{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--terminal);}
@media (min-width:760px){
  .index-list__row{grid-template-columns:64px 1.4fr 1fr auto;}
}

/* ---------- 跳至主内容 ---------- */
.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:200;
  padding:10px 16px;
  background:var(--cinnabar);
  color:#12100c;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  transform:translateY(-160%);
  transition:transform .22s ease;
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);}

/* ---------- 头部：侧边档案轨道 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--rail-w);
  z-index:80;
  display:flex;
  flex-direction:column;
  padding:24px 0 0;
  background:var(--ink-deep);
  border-right:1px solid var(--grid);
}
.site-header__top{
  padding:0 16px 20px;
  border-bottom:1px solid var(--grid);
}

.brand{display:flex;flex-direction:column;gap:10px;}
.brand__mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  background:var(--cinnabar);
  color:#12100c;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:900;
  letter-spacing:0;
}
.brand__body{display:flex;flex-direction:column;gap:3px;}
.brand__name{
  font-family:var(--font-display);
  font-size:13px;
  font-weight:900;
  letter-spacing:.05em;
  color:var(--paper);
}
.brand__desc{
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.55;
  letter-spacing:.04em;
  color:var(--terminal);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border:1px solid var(--grid);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px;}
.nav-toggle__bars span{display:block;height:2px;width:100%;background:var(--cinnabar-lit);transition:transform .25s ease,opacity .25s ease;}
.nav-toggle__label{line-height:1;}

.nav{
  flex:1 1 auto;
  display:flex;
  flex-direction:column;
  padding-top:20px;
  overflow-y:auto;
  overscroll-behavior:contain;
}
.nav__caption{
  padding:0 16px 12px;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.24em;
  color:rgba(138,169,188,.72);
}
.nav__list{display:flex;flex-direction:column;}
.nav__link{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:11px 14px 11px 16px;
  border-left:2px solid transparent;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.04em;
  color:rgba(242,231,207,.78);
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.nav__link:hover{
  color:var(--paper);
  background:rgba(36,68,90,.35);
  border-left-color:var(--cinnabar-lit);
}
.nav__link[aria-current="page"]{
  color:var(--paper);
  border-left-color:var(--cinnabar);
  background:linear-gradient(90deg,rgba(217,93,57,.18),rgba(217,93,57,0) 78%);
}
.nav__idx{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.06em;
  color:var(--terminal);
  opacity:.8;
}
.nav__link[aria-current="page"] .nav__idx{color:var(--cinnabar-lit);opacity:1;}
.nav__text{display:inline-block;}
.nav__meta{
  display:none;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.04em;
  color:var(--terminal);
}

.rail-progress{
  position:absolute;
  top:0;
  right:-1px;
  bottom:0;
  width:2px;
  background:rgba(36,68,90,.35);
  pointer-events:none;
}
.rail-progress__bar{
  display:block;
  width:100%;
  height:100%;
  background:var(--cinnabar);
  transform-origin:top center;
  transform:scaleY(var(--progress,0));
  transition:transform .12s linear;
}

/* ---------- 页脚：资料目录 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,140px);
  background:var(--ink-deep);
  border-top:1px solid var(--grid);
  color:var(--paper);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:clamp(64px,18vw,220px);
  height:2px;
  background:var(--cinnabar);
}
.footer__inner{
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(40px,6vw,76px) var(--gutter) clamp(28px,4vw,44px);
  display:grid;
  gap:clamp(32px,4vw,56px);
  grid-template-columns:1fr;
}
@media (min-width:900px){
  .footer__inner{grid-template-columns:minmax(200px,1fr) 2.2fr;}
}
.footer__brand .brand{flex-direction:row;align-items:center;gap:12px;}
.footer__statement{
  margin-top:18px;
  max-width:34ch;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(242,231,207,.7);
}
.footer__cols{
  display:grid;
  gap:26px;
  grid-template-columns:1fr;
}
@media (min-width:600px){
  .footer__cols{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
}
.footer__col{min-width:0;}
.footer__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--paper-dim);
  padding-bottom:10px;
  margin-bottom:12px;
  border-bottom:1px solid var(--grid);
}
.footer__list{counter-reset:fl;display:flex;flex-direction:column;gap:8px;}
.footer__list li{counter-increment:fl;}
.footer__list a{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  font-size:14px;
  color:rgba(242,231,207,.82);
  transition:color .2s ease;
}
.footer__list a::before{
  content:counter(fl,decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--terminal);
}
.footer__list a:hover{color:var(--cinnabar-lit);}

.footer__contact{
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(24px,4vw,36px) var(--gutter);
  border-top:1px solid var(--grid);
  display:grid;
  gap:22px;
  grid-template-columns:1fr;
}
@media (min-width:768px){
  .footer__contact{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px 32px;}
}
.contact__item{display:flex;flex-direction:column;gap:6px;min-width:0;}
.contact__label{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--terminal);
}
.contact__value{
  font-size:15px;
  color:var(--paper);
  word-break:break-word;
  overflow-wrap:anywhere;
}
.footer__note{
  grid-column:1/-1;
  padding-top:16px;
  border-top:1px dashed rgba(36,68,90,.85);
  font-size:12.5px;
  line-height:1.75;
  color:rgba(138,169,188,.92);
}
.footer__legal{
  max-width:var(--maxw);
  margin-inline:auto;
  padding:18px var(--gutter) 34px;
  border-top:1px solid var(--grid);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:rgba(138,169,188,.8);
}
.footer__icp{color:rgba(214,195,158,.82);}

/* ---------- 滚动显现 ---------- */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.2,1);
}
.js-reveal [data-reveal].is-in{opacity:1;transform:none;}

/* ---------- 移动端：顶部条 + 抽屉 ---------- */
@media (max-width:1023px){
  .site-header{
    position:sticky;
    top:0;
    left:auto;
    right:auto;
    bottom:auto;
    width:100%;
    height:64px;
    flex-direction:row;
    align-items:center;
    padding:0;
    border-right:0;
    border-bottom:1px solid var(--grid);
  }
  .site-header__top{
    position:relative;
    z-index:4;
    display:flex;
    align-items:center;
    justify-content:space-between;
    width:100%;
    height:64px;
    padding:0 16px;
    background:var(--ink-deep);
    border-bottom:0;
  }
  .brand{flex-direction:row;align-items:center;gap:10px;}
  .brand__mark{width:28px;height:28px;font-size:14px;}
  .brand__name{font-size:14px;}
  .brand__desc{display:none;}
  .nav-toggle{display:inline-flex;}

  .site-header::after{
    content:"";
    position:fixed;
    inset:0;
    background:rgba(4,10,17,.72);
    opacity:0;
    pointer-events:none;
    transition:opacity .38s ease;
    z-index:2;
  }
  .site-header[data-open="true"]::after{opacity:1;pointer-events:auto;}

  .nav{
    position:fixed;
    top:0;
    left:0;
    bottom:0;
    width:min(86vw,340px);
    flex:0 0 auto;
    padding:78px 0 24px;
    background:var(--ink-deep);
    border-right:1px solid var(--grid);
    transform:translateX(-102%);
    visibility:hidden;
    transition:transform .38s cubic-bezier(.2,.72,.24,1),visibility .38s;
    z-index:3;
  }
  .site-header[data-open="true"] .nav{
    transform:translateX(0);
    visibility:visible;
  }
  .nav__caption{padding:0 20px 14px;font-size:10px;}
  .nav__link{padding:13px 20px;font-size:15px;}
  .btn--rail{
    margin:22px 20px 0;
    padding:12px;
    font-size:13px;
  }
  .nav__meta{display:block;padding:18px 20px 0;}

  .site-header[data-open="true"] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg);}
  .site-header[data-open="true"] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg);}

  .rail-progress{
    top:auto;
    bottom:-1px;
    left:0;
    right:0;
    width:auto;
    height:2px;
  }
  .rail-progress__bar{
    transform-origin:left center;
    transform:scaleX(var(--progress,0));
  }
}

/* ---------- 动效兼容 ---------- */
@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],
  .js-reveal [data-reveal]{
    opacity:1 !important;
    transform:none !important;
    transition:none !important;
  }
  .rail-progress__bar{transition:none !important;}
}