:root{
  --lb-bg-900:#0A0F2C;
  --lb-bg-800:#141C42;
  --lb-line:#233066;
  --lb-slate:#8A96CC;
  --lb-neon:#4DFF9B;
  --lb-orange:#FF8A3D;
  --lb-text:#EAEFFF;
  --lb-soft:#AFB9E4;
  --lb-paper:#F5F7FF;
  --lb-green:#127A61;
  --lb-focus:#4C6BFF;
  --lb-radius:2px;
  --lb-shell:1360px;
  --lb-font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --lb-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --lb-s1:8px;
  --lb-s2:16px;
  --lb-s3:32px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--lb-bg-900);
  color:var(--lb-text);
  font-family:var(--lb-font);
  font-size:15px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:0;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--lb-neon);outline-offset:2px;border-radius:1px}
.lb-nav-open,.lb-nav-open body{overflow:hidden}

.lb-visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 排版工具 ---------- */
.lb-data{font-family:var(--lb-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:.02em}
.lb-kicker{font-family:var(--lb-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--lb-slate)}
.lb-h1{font-size:clamp(28px,4vw,52px)}
.lb-h2{font-size:clamp(22px,2.6vw,36px)}
.lb-h3{font-size:clamp(18px,1.8vw,28px)}
.lb-lead{font-size:17px;line-height:1.75;color:var(--lb-soft);max-width:34em}
.lb-text-dim{color:var(--lb-slate)}

/* ---------- 容器与骨架 ---------- */
.lb-container{width:min(100% - 32px,var(--lb-shell));margin-inline:auto}
.lb-main{display:block;scroll-margin-top:140px;min-height:60vh}
.lb-shell{display:grid;grid-template-columns:240px minmax(0,1fr);gap:var(--lb-s3);align-items:start}
.lb-section{padding-block:48px}
.lb-section__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:var(--lb-s2);padding-bottom:12px;margin-bottom:var(--lb-s3);border-bottom:1px solid var(--lb-line)}
.lb-section__index{font-family:var(--lb-mono);font-size:12px;letter-spacing:.08em;color:var(--lb-orange)}

.lb-ruler{height:10px;background-image:repeating-linear-gradient(90deg,var(--lb-line) 0 1px,transparent 1px 12px);background-repeat:repeat-x;background-size:12px 100%}
.lb-ruler--tall{height:18px}

/* ---------- 跳转链接 ---------- */
.lb-skip{position:absolute;left:8px;top:-72px;z-index:300;padding:10px 16px;background:var(--lb-neon);color:#06121A;font-weight:700;font-size:14px;border-radius:var(--lb-radius);transition:top .16s ease}
.lb-skip:focus{top:8px}

/* ---------- 阅读进度 ---------- */
.lb-progress{position:fixed;top:0;left:0;right:0;height:3px;background:rgba(35,48,102,.6);z-index:140;pointer-events:none}
.lb-progress__bar{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;background:linear-gradient(90deg,var(--lb-green),var(--lb-neon))}

/* ---------- 品牌 ---------- */
.lb-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.lb-brand__mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--lb-neon);color:var(--lb-neon);font-family:var(--lb-mono);font-size:13px;font-weight:700;letter-spacing:.06em;border-radius:var(--lb-radius);background:rgba(77,255,155,.07)}
.lb-brand__text{display:block}
.lb-brand__name{display:block;font-size:16px;font-weight:800;letter-spacing:-.01em;line-height:1.2}
.lb-brand__line{display:block;font-family:var(--lb-mono);font-size:11px;letter-spacing:.06em;color:var(--lb-slate);line-height:1.5}

/* ---------- 页头 ---------- */
.lb-header{position:sticky;top:0;z-index:120;background:rgba(10,15,44,.98);border-bottom:1px solid var(--lb-line)}
.lb-header__upper{border-bottom:1px solid var(--lb-line);max-height:90px;overflow:hidden;transition:max-height .24s ease,opacity .24s ease}
.lb-header[data-collapsed="true"] .lb-header__upper{max-height:0;opacity:0;border-color:transparent}
.lb-header__upper-inner{display:flex;align-items:center;gap:var(--lb-s2);min-height:60px;padding-block:8px}
.lb-header__lower-inner{display:flex;align-items:center;gap:var(--lb-s2);min-height:54px}
.lb-header__stamp{font-size:11px;letter-spacing:.08em;color:var(--lb-slate);border-left:1px solid var(--lb-line);padding-left:var(--lb-s2);white-space:nowrap;margin-left:auto}

.lb-status{display:inline-flex;align-items:center;gap:8px;margin:0;padding:4px 10px;border:1px solid var(--lb-line);background:var(--lb-bg-800);border-radius:var(--lb-radius);font-family:var(--lb-mono);font-size:11px;letter-spacing:.06em;color:var(--lb-slate);white-space:nowrap}
.lb-status__dot{width:7px;height:7px;border-radius:50%;background:var(--lb-neon);box-shadow:0 0 0 3px rgba(77,255,155,.16)}

.lb-util{display:flex;flex-wrap:wrap;gap:4px;margin-left:auto}
.lb-util__item{padding:6px 10px;font-family:var(--lb-mono);font-size:11px;letter-spacing:.06em;color:var(--lb-slate);border:1px solid transparent;border-bottom-color:var(--lb-line);border-radius:var(--lb-radius);transition:color .16s ease,border-color .16s ease,background .16s ease}
.lb-util__item:hover{color:var(--lb-neon);border-color:var(--lb-line);background:var(--lb-bg-800)}

.lb-nav{flex:1 1 auto}
.lb-nav__list{display:flex;flex-wrap:wrap;gap:2px}
.lb-nav__link{display:inline-flex;align-items:baseline;padding:8px 12px;font-size:14px;font-weight:600;color:var(--lb-soft);border:1px solid transparent;border-radius:var(--lb-radius);transition:color .16s ease,background .16s ease,border-color .16s ease}
.lb-nav__link:hover{color:var(--lb-text);background:var(--lb-bg-800);border-color:var(--lb-line)}
.lb-nav__link[aria-current="page"]{color:var(--lb-neon);border-color:var(--lb-neon);background:rgba(77,255,155,.08)}
.lb-nav__idx{font-family:var(--lb-mono);font-size:10px;letter-spacing:.06em;color:var(--lb-slate);margin-right:6px}
.lb-nav__link[aria-current="page"] .lb-nav__idx{color:var(--lb-neon)}

.lb-nav-toggle{display:none;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--lb-line);border-radius:var(--lb-radius);font-family:var(--lb-mono);font-size:12px;letter-spacing:.08em;color:var(--lb-text);background:var(--lb-bg-800)}
.lb-nav-toggle__bars{position:relative;display:block;width:16px;height:10px;border-top:1px solid var(--lb-neon);border-bottom:1px solid var(--lb-neon)}
.lb-nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;top:50%;border-top:1px solid var(--lb-neon)}

/* ---------- 侧栏数据导航 ---------- */
.lb-sidebar{position:sticky;top:84px;background:var(--lb-bg-800);border:1px solid var(--lb-line);border-radius:var(--lb-radius);padding:var(--lb-s2)}
.lb-sidebar__title{font-family:var(--lb-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--lb-neon);padding-bottom:10px;margin-bottom:12px;border-bottom:1px dashed var(--lb-line)}
.lb-sidebar__list{display:grid;gap:2px}
.lb-sidebar__link{display:flex;align-items:baseline;gap:8px;padding:8px 10px;font-size:13px;color:var(--lb-soft);border-left:2px solid transparent;border-radius:var(--lb-radius);transition:color .16s ease,background .16s ease,border-color .16s ease}
.lb-sidebar__link:hover{color:var(--lb-text);background:rgba(35,48,102,.5)}
.lb-sidebar__link.is-active{color:var(--lb-neon);border-left-color:var(--lb-neon);background:rgba(77,255,155,.07)}
.lb-sidebar__num{font-family:var(--lb-mono);font-size:11px;color:var(--lb-slate)}
.lb-sidebar__link.is-active .lb-sidebar__num{color:var(--lb-neon)}

/* ---------- 面包屑 ---------- */
.lb-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding-block:var(--lb-s2);font-family:var(--lb-mono);font-size:11px;letter-spacing:.08em;color:var(--lb-slate)}
.lb-breadcrumb__sep{color:var(--lb-line)}
.lb-breadcrumb a:hover{color:var(--lb-neon)}
.lb-breadcrumb [aria-current="page"]{color:var(--lb-text)}

/* ---------- 按钮 ---------- */
.lb-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border:1px solid var(--lb-line);border-radius:var(--lb-radius);background:var(--lb-bg-800);color:var(--lb-text);font-size:14px;font-weight:600;line-height:1.4;transition:color .18s ease,border-color .18s ease,background .18s ease}
.lb-btn:hover{color:var(--lb-neon);border-color:var(--lb-neon)}
.lb-btn--bright{background:var(--lb-neon);border-color:var(--lb-neon);color:#06121A;font-weight:700}
.lb-btn--bright:hover{background:#8AFFC0;border-color:#8AFFC0;color:#06121A}
.lb-btn--ghost{background:transparent}

/* ---------- 面板与卡片 ---------- */
.lb-panel{position:relative;background:var(--lb-bg-800);border:1px solid var(--lb-line);border-radius:var(--lb-radius);padding:var(--lb-s3)}
.lb-panel--flush{padding:0;overflow:hidden}
.lb-panel--paper{background:var(--lb-paper);border-color:#D8DEF7;color:#0A0F2C}
.lb-panel--paper .lb-panel__title{color:#0A0F2C}
.lb-panel--paper .lb-panel__note,.lb-panel--paper .lb-kicker{color:#5A6699}
.lb-panel--paper .lb-panel__head{border-bottom-color:#D8DEF7}
.lb-panel__head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:var(--lb-s2);padding-bottom:14px;margin-bottom:var(--lb-s2);border-bottom:1px dashed var(--lb-line)}
.lb-panel__title{font-size:18px;font-weight:800}
.lb-panel__tag{font-family:var(--lb-mono);font-size:11px;letter-spacing:.08em;color:var(--lb-neon);border:1px solid rgba(77,255,155,.35);background:rgba(77,255,155,.07);padding:2px 8px;border-radius:var(--lb-radius);white-space:nowrap}
.lb-panel__note{font-family:var(--lb-mono);font-size:11px;letter-spacing:.06em;color:var(--lb-slate)}
.lb-panel__body{padding:var(--lb-s2) var(--lb-s3) var(--lb-s3)}

/* ---------- 网格 ---------- */
.lb-grid{display:grid;gap:var(--lb-s2)}
.lb-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.lb-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.lb-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ---------- 筛选 chips ---------- */
.lb-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border:1px solid var(--lb-line);background:var(--lb-bg-800);color:var(--lb-slate);border-radius:var(--lb-radius);font-family:var(--lb-mono);font-size:11px;letter-spacing:.08em;transition:color .16s ease,background .16s ease,border-color .16s ease}
.lb-chip:hover{color:var(--lb-text);border-color:var(--lb-slate)}
.lb-chip.is-active,.lb-chip[aria-pressed="true"]{background:var(--lb-neon);border-color:var(--lb-neon);color:#06121A;font-weight:700}

/* ---------- 表格 ---------- */
.lb-table{width:100%;font-size:14px}
.lb-table th{font-family:var(--lb-mono);font-size:11px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--lb-slate);text-align:left;padding:10px 12px;border-bottom:1px solid var(--lb-line);white-space:nowrap}
.lb-table td{padding:12px;border-bottom:1px solid rgba(35,48,102,.7);vertical-align:middle}
.lb-table tbody tr:hover{background:rgba(77,255,155,.05)}
.lb-table__num{font-family:var(--lb-mono);font-variant-numeric:tabular-nums;text-align:right}
.lb-table__hot{color:var(--lb-orange);font-weight:700}

/* ---------- 图片容器 ---------- */
.lb-media{position:relative;display:block;overflow:hidden;border:1px solid var(--lb-line);border-radius:var(--lb-radius);background-color:var(--lb-bg-800);background-image:repeating-linear-gradient(90deg,transparent 0 23px,rgba(138,150,204,.12) 23px 24px),repeating-linear-gradient(0deg,transparent 0 23px,rgba(138,150,204,.12) 23px 24px),linear-gradient(160deg,#141C42,#0A0F2C);background-size:24px 24px,24px 24px,100% 100%}
.lb-media img{width:100%;height:100%;object-fit:cover}
.lb-media--16x9{aspect-ratio:16/9}
.lb-media--4x3{aspect-ratio:4/3}
.lb-media--1x1{aspect-ratio:1/1}
.lb-media--3x4{aspect-ratio:3/4}
.lb-media__cap{position:absolute;left:0;bottom:0;right:0;padding:8px 12px;font-family:var(--lb-mono);font-size:11px;letter-spacing:.06em;color:var(--lb-text);background:linear-gradient(180deg,rgba(10,15,44,0),rgba(10,15,44,.92))}

/* ---------- 显现动效 ---------- */
.lb-reveal{opacity:0;transform:translateY(8px);transition:opacity .45s ease,transform .45s ease}
.lb-reveal.is-in{opacity:1;transform:none}

/* ---------- 页脚 ---------- */
.lb-footer{position:relative;margin-top:64px;background:var(--lb-bg-800);border-top:1px solid var(--lb-line)}
.lb-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--lb-neon),transparent);opacity:.55}
.lb-footer__top{display:grid;grid-template-columns:minmax(240px,1.5fr) repeat(4,minmax(140px,1fr));gap:var(--lb-s3);padding-block:48px}
.lb-footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:var(--lb-s2)}
.lb-footer__desc{margin:0;font-size:13px;line-height:1.75;color:var(--lb-slate);max-width:30em}
.lb-footer__title{margin:0 0 14px;font-family:var(--lb-mono);font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--lb-neon)}
.lb-footer__list{display:grid;gap:8px}
.lb-footer__link{display:inline-block;font-size:14px;color:var(--lb-soft);border-bottom:1px solid transparent;transition:color .16s ease,border-color .16s ease}
.lb-footer__link:hover{color:var(--lb-neon);border-bottom-color:var(--lb-neon)}
.lb-footer__meta{display:grid;gap:10px;padding-block:24px;border-top:1px solid var(--lb-line);font-size:13px;color:var(--lb-slate)}
.lb-footer__contact{font-size:13px;color:var(--lb-soft)}
.lb-footer__note,.lb-footer__archive{margin:0;font-size:12px}
.lb-footer__legal{display:flex;flex-wrap:wrap;gap:16px;margin:0;font-size:12px;color:var(--lb-slate)}
.lb-footer__inline{font-family:var(--lb-mono);letter-spacing:.02em}
.lb-footer__contact,.lb-footer__note,.lb-footer__archive{font-family:var(--lb-font)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .lb-shell{grid-template-columns:minmax(0,1fr)}
  .lb-sidebar{position:static}
  .lb-footer__top{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--lb-s2) var(--lb-s3)}
  .lb-footer__brand{grid-column:1/-1}
}
@media (max-width:980px){
  .lb-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lb-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .lb-nav-toggle{display:inline-flex}
  .lb-nav{position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);padding:76px 20px 24px;overflow-y:auto;background:var(--lb-bg-800);border-left:1px solid var(--lb-line);transform:translateX(102%);transition:transform .28s ease;z-index:130;flex:0 0 auto}
  .lb-nav[data-open="true"]{transform:translateX(0)}
  .lb-nav[data-open="false"]{transform:translateX(102%)}
  .lb-nav__list{flex-direction:column;gap:4px}
  .lb-nav__link{display:flex;width:100%;padding:12px 14px;font-size:16px;border-color:var(--lb-line)}
  .lb-header__stamp{display:none}
  .lb-header__upper-inner{flex-wrap:wrap;gap:10px}
  .lb-util{width:100%;margin-left:0}
}
@media (max-width:680px){
  body{font-size:14.5px}
  .lb-container{width:calc(100% - 24px)}
  .lb-section{padding-block:32px}
  .lb-panel{padding:var(--lb-s2)}
  .lb-panel__body{padding:var(--lb-s2)}
  .lb-header__upper-inner{min-height:56px}
  .lb-status{display:none}
  .lb-footer__top{grid-template-columns:minmax(0,1fr)}
  .lb-footer__legal{flex-direction:column;gap:4px}
  .lb-grid--2,.lb-grid--3,.lb-grid--4{grid-template-columns:minmax(0,1fr)}
  .lb-h1{font-size:28px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .lb-reveal{opacity:1;transform:none}
  .lb-progress__bar{transition:none!important}
}