:root{
  --ink:#061A14;
  --board:#0B241C;
  --layer:#123026;
  --line:#1E4436;
  --whistle:#F5C518;
  --warm:#FFE7A3;
  --shirt:#E0453C;
  --bone:#F2EFE6;
  --mist:#9FB0A8;
  --paper:#E7E1CE;
  --verify:#46C79B;

  --font-sans:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Heiti SC",sans-serif;
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --rail:88px;
  --gutter:48px;
  --shell-max:1680px;
  --radius:2px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-paper:4px 4px 0 rgba(0,0,0,.45);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  background:var(--ink);
  color:var(--bone);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.6;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse;border-spacing:0}
::selection{background:var(--whistle);color:var(--ink)}

:focus-visible{outline:2px solid var(--whistle);outline-offset:2px}

.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 布局容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.panel{
  background:var(--board);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel__head{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:14px 20px;
  border-bottom:1px solid var(--line);
}
.panel__body{padding:20px}

/* ---------- 排版 ---------- */
.t-display{
  font-size:clamp(44px,6vw,96px);
  font-weight:200;
  letter-spacing:-.02em;
  line-height:1.02;
}
.t-section{
  font-size:clamp(22px,2.4vw,44px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.12;
}
.t-body{
  font-size:15px;
  line-height:1.62;
  max-width:42ch;
  color:var(--bone);
}
.t-mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.idx{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--mist);
  margin-right:14px;
  letter-spacing:.06em;
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 8px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--board);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  line-height:1.4;
  white-space:nowrap;
}
.tag--whistle{background:var(--whistle);border-color:var(--whistle);color:var(--ink)}
.tag--verify{color:var(--verify);border-color:rgba(70,199,155,.45)}
.tag--alert{color:var(--shirt);border-color:rgba(224,69,60,.5)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--board);
  color:var(--bone);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{background:var(--layer);border-color:var(--whistle);color:var(--whistle)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--whistle);border-color:var(--whistle);color:var(--ink)}
.btn--primary:hover{background:var(--warm);border-color:var(--warm);color:var(--ink)}
.btn--ghost{background:transparent}

/* ---------- 图片容器基础规则（页面阶段放图） ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  background:var(--board);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.media-frame img{
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.06);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 92% at 50% 28%,rgba(0,0,0,0) 34%,rgba(3,12,9,.74) 100%);
}
.media-frame--grain::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(rgba(242,239,230,.07) 1px,transparent 1px);
  background-size:3px 3px;
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}

/* ---------- 检索命中状态 ---------- */
[data-search-terms].is-match{
  background:var(--layer);
  box-shadow:inset 3px 0 0 var(--whistle);
}

/* =========================================================
   头部
   ========================================================= */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  display:grid;
  grid-template-columns:var(--rail) minmax(0,1fr);
  background:var(--ink);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(0,0,0,.4);
}

.skip-link{
  position:absolute;
  left:8px;top:-64px;
  z-index:120;
  padding:10px 16px;
  background:var(--whistle);
  color:var(--ink);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  border-radius:var(--radius);
  transition:top .16s var(--ease);
}
.skip-link:focus{top:8px}

/* 品牌轨道 */
.brand-rail{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 6px;
  background:var(--board);
  border-right:1px solid var(--line);
  transition:background .18s var(--ease);
}
.brand-rail:hover{background:var(--layer)}
.brand-rail__pip{
  display:block;
  width:2px;height:22px;
  background:var(--whistle);
}
.brand-rail__word{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-size:13px;
  font-weight:800;
  letter-spacing:.26em;
  color:var(--bone);
  line-height:1;
}

/* 命令栏 */
.command{
  display:flex;
  flex-direction:column;
  min-width:0;
}
.command__inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-width:0;
  padding:9px 24px;
  min-height:54px;
  border-bottom:1px solid var(--line);
  transition:min-height .2s var(--ease),padding .2s var(--ease);
}
.command__nav{
  display:flex;
  align-items:center;
  min-width:0;
  padding:0 16px;
  min-height:46px;
  transition:min-height .2s var(--ease);
}

/* 面包屑 */
.crumbs{flex:0 1 auto;min-width:0;overflow:hidden}
.crumbs__list{
  display:flex;align-items:center;gap:8px;
  margin:0;padding:0;
  white-space:nowrap;
}
.crumbs__item{font-size:13px;line-height:1.4}
.crumbs__item a{color:var(--mist);transition:color .16s var(--ease)}
.crumbs__item a:hover{color:var(--whistle)}
.crumbs__item--current{color:var(--bone);font-weight:700}
.crumbs__sep{color:var(--line);font-family:var(--font-mono);font-size:13px}

/* 状态灯 */
.status{
  display:inline-flex;align-items:center;gap:8px;
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--board);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--mist);
  white-space:nowrap;
}
.status__lamp{
  width:7px;height:7px;border-radius:50%;
  background:var(--verify);
  box-shadow:0 0 0 3px rgba(70,199,155,.16);
  animation:lamp-pulse 1.6s ease-in-out infinite;
}
.status--alert .status__lamp{
  background:var(--shirt);
  box-shadow:0 0 0 3px rgba(224,69,60,.18);
}
@keyframes lamp-pulse{0%,100%{opacity:1}50%{opacity:.42}}

/* 常驻检索 */
.search{
  display:flex;align-items:center;gap:8px;
  margin-left:auto;
  height:34px;
  padding:0 10px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--board);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search:focus-within{
  border-color:var(--whistle);
  box-shadow:0 0 0 3px rgba(245,197,24,.14);
}
.search__icon{flex:none;color:var(--mist)}
.search input{
  width:190px;
  border:0;background:none;outline:none;
  color:var(--bone);
  font-family:var(--font-sans);
  font-size:13px;
  line-height:1;
}
.search input::placeholder{color:#5D6F67}
.search input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none}
.search__key{
  flex:none;
  padding:2px 5px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--mist);
}

/* 导航 */
.primary-nav{width:100%;min-width:0}
.primary-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.primary-nav a{
  display:block;
  padding:9px 13px;
  border-bottom:2px solid transparent;
  color:var(--mist);
  font-size:13px;
  letter-spacing:.04em;
  transition:color .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease);
}
.primary-nav a:hover{color:var(--bone);background:var(--layer)}
.primary-nav a[aria-current="page"]{
  color:var(--whistle);
  border-bottom-color:var(--whistle);
  font-weight:700;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;gap:8px;
  flex:none;
  height:34px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--board);
  color:var(--bone);
  font-size:13px;
  letter-spacing:.06em;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--whistle);color:var(--whistle)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars i{display:block;height:2px;background:var(--whistle)}

/* 阅读进度 */
.read-progress{
  position:absolute;
  left:0;bottom:-1px;
  height:2px;width:0;
  background:var(--whistle);
  z-index:2;
  transition:width .12s linear;
}

/* 头部压缩态 */
.site-header[data-compact="true"] .command__inner{min-height:40px;padding-block:4px}
.site-header[data-compact="true"] .command__nav{min-height:34px}
.site-header[data-compact="true"] .primary-nav a{padding-block:6px;font-size:12px}
.site-header[data-compact="true"] .brand-rail__word{font-size:12px;letter-spacing:.2em}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:var(--board);
  color:var(--mist);
}
.footer-top{
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:48px var(--gutter) 28px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:20px;
  border-bottom:1px solid var(--line);
}
.footer-brand__name{
  font-size:clamp(24px,3vw,40px);
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--bone);
  line-height:1.1;
}
.footer-brand__tag{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--mist);
}

.footer-cols{
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:36px var(--gutter) 44px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--whistle);
  padding-bottom:10px;
  margin-bottom:12px;
  border-bottom:1px solid var(--line);
}
.footer-col__list{display:grid;gap:9px}
.footer-col__list li{font-size:14px;line-height:1.5}
.footer-col__list a{color:var(--mist);transition:color .16s var(--ease)}
.footer-col__list a:hover{color:var(--bone)}
.footer-col__list--plain li{color:var(--bone);word-break:break-word}
.footer-col__note{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--mist) !important;
  padding-top:4px;
}

.footer-legal{
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:16px var(--gutter) 28px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 28px;
  justify-content:space-between;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  color:#7A8D85;
}
.footer-legal p{margin:0}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1200px){
  :root{--gutter:32px}
}

@media (max-width:1024px){
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:900px){
  .site-header{
    grid-template-columns:minmax(0,1fr);
    box-shadow:0 1px 0 rgba(0,0,0,.4);
  }
  .brand-rail{
    flex-direction:row;
    align-items:center;
    justify-content:flex-start;
    gap:10px;
    padding:11px 16px;
    border-right:0;
    border-bottom:1px solid var(--line);
  }
  .brand-rail__pip{width:22px;height:2px}
  .brand-rail__word{
    writing-mode:horizontal-tb;
    text-orientation:mixed;
    font-size:15px;
    letter-spacing:.02em;
  }
  .command__inner{padding:8px 16px;min-height:50px;flex-wrap:wrap;row-gap:8px}
  .command__nav{padding:0 8px 8px;display:block;min-height:0}
  .primary-nav{display:none}
  .primary-nav[data-open]{display:block}
  .primary-nav__list{display:block}
  .primary-nav a{
    padding:12px 12px;
    border-bottom:1px solid var(--line);
    border-left:2px solid transparent;
  }
  .primary-nav a[aria-current="page"]{
    border-bottom-color:var(--line);
    border-left-color:var(--whistle);
    background:var(--layer);
  }
  .nav-toggle{display:inline-flex}
  .site-header[data-compact="true"] .command__nav{min-height:0}
}

@media (max-width:640px){
  :root{--gutter:16px}
  .crumbs{display:none}
  .status__text{display:none}
  .status{padding:4px 8px}
  .search{max-width:100%}
  .search input{width:104px}
  .search__key{display:none}
  .nav-toggle__text{display:none}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;gap:6px}
}

/* =========================================================
   动效偏好
   ========================================================= */
@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;
  }
  .status__lamp{animation:none;opacity:1}
  .read-progress{transition:none}
}