/* =========================================================
   白宫严选 · White House Select
   设计参考 whitehouse.gov：深藏蓝 + 金色点缀 + 米白纸感 + 衬线标题
   ========================================================= */

:root{
  --ink:#0A1F3C;
  --ink-2:#0E2A4E;
  --ink-3:#173E6B;
  --ink-line:rgba(255,255,255,.14);
  --gold:#C6A15B;
  --gold-soft:#E7D3A8;
  --gold-deep:#9C7A35;
  --red:#9E2B25;
  --paper:#FAF7F0;
  --paper-2:#F2EEE4;
  --white:#FFFFFF;
  --line:#E4DED1;
  --line-strong:#CFC6B2;
  --text:#191D24;
  --muted:#5B6472;
  --muted-2:#8A929E;
  --ok:#2F6B4F;
  --radius:2px;
  --shadow-sm:0 1px 2px rgba(10,31,60,.06), 0 2px 8px rgba(10,31,60,.04);
  --shadow-md:0 2px 4px rgba(10,31,60,.06), 0 12px 32px rgba(10,31,60,.09);
  --maxw:1240px;
  --font-serif:Georgia,"Times New Roman","Songti SC","SimSun","Noto Serif SC",serif;
  --font-sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--ink-3);text-decoration:none}
a:hover{color:var(--gold-deep)}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.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}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-family:var(--font-sans);font-size:11px;font-weight:700;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gold-deep);margin:0 0 14px;
  display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);display:inline-block}
.eyebrow.light{color:var(--gold-soft)}
.eyebrow.light::before{background:var(--gold-soft)}

h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;line-height:1.2;margin:0;letter-spacing:-.01em}
.section{padding:72px 0}
.section--tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:clamp(26px,3.2vw,38px)}
.section-desc{color:var(--muted);max-width:620px;margin:12px 0 0;font-size:15px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 顶部工具条 ---------- */
.utility{
  background:var(--ink);color:rgba(255,255,255,.72);font-size:12px;letter-spacing:.04em;
}
.utility .wrap{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.utility .left{display:flex;align-items:center;gap:8px;min-width:0}
.utility .left .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);flex:none}
.utility .right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.utility a{color:rgba(255,255,255,.72)}
.utility a:hover{color:var(--gold-soft)}

/* ---------- 主导航 ---------- */
.masthead{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.masthead::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg,var(--gold) 0%,var(--gold-soft) 45%,transparent 100%);
  opacity:.85;
}
.masthead .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:1px;
  background:linear-gradient(160deg,var(--ink) 0%,var(--ink-3) 100%);
  display:grid;place-items:center;color:var(--gold-soft);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-zh{font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--ink);letter-spacing:.06em}
.brand-en{font-size:9px;font-weight:700;letter-spacing:.26em;color:var(--muted-2);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:10px 14px;font-size:13.5px;font-weight:600;color:var(--ink-2);
  letter-spacing:.02em;border-radius:1px;
}
.nav a:hover{color:var(--ink);background:var(--paper-2)}
.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--gold);
}
.nav-cta{
  margin-left:10px;padding:10px 18px !important;background:var(--ink) !important;color:#fff !important;
  border-radius:1px;letter-spacing:.06em;font-size:12.5px !important;
}
.nav-cta:hover{background:var(--ink-3) !important}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:1px;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink);transition:.2s}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1200px 500px at 78% -10%, rgba(198,161,91,.20), transparent 60%),
    linear-gradient(165deg,#0A1F3C 0%,#0E2A4E 46%,#0B2444 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(198,161,91,.22);pointer-events:none;
}
.hero .wrap{position:relative;z-index:1;padding-top:84px;padding-bottom:92px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);gap:64px;align-items:end}
.hero h1{
  font-size:clamp(40px,6.4vw,78px);line-height:1.02;letter-spacing:-.02em;margin:0 0 8px;
  font-family:var(--font-serif);font-weight:600;
}
.hero h1 .accent{color:var(--gold-soft);display:block;font-size:.52em;letter-spacing:.02em;margin-top:14px;font-style:normal}
.hero-en{
  font-size:clamp(11px,1.2vw,13px);letter-spacing:.32em;text-transform:uppercase;
  color:rgba(255,255,255,.62);font-weight:600;margin:26px 0 0;
}
.hero-lead{
  font-size:clamp(15px,1.5vw,17.5px);line-height:1.8;color:rgba(255,255,255,.84);
  max-width:620px;margin:22px 0 0;
}
.hero-lead strong{color:#fff;font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:1px;
  font-size:13.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid transparent;transition:.18s ease;white-space:nowrap;
}
.btn svg{width:15px;height:15px}
.btn-gold{background:var(--gold);color:#0A1F3C;border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-soft);border-color:var(--gold-soft);color:#0A1F3C}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.6);color:#fff}
.btn-dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-dark:hover{background:var(--ink-3);border-color:var(--ink-3);color:#fff}

/* Hero 右侧数据卡 */
.hero-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);padding:26px;
}
.hero-card h2{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-soft);font-family:var(--font-sans);font-weight:700}
.hero-stat{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.hero-stat:last-child{border-bottom:0;padding-bottom:0}
.hero-stat .k{font-size:13px;color:rgba(255,255,255,.7)}
.hero-stat .v{font-family:var(--font-serif);font-size:26px;color:#fff;line-height:1}
.hero-stat .v small{font-size:12px;color:var(--gold-soft);margin-left:3px;font-family:var(--font-sans)}

/* ---------- 数据条 ---------- */
.stats-strip{background:var(--white);border-bottom:1px solid var(--line)}
.stats-strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-cell{padding:26px 22px;border-right:1px solid var(--line)}
.stat-cell:first-child{padding-left:0}
.stat-cell:last-child{border-right:0;padding-right:0}
.stat-cell .num{font-family:var(--font-serif);font-size:clamp(26px,3vw,36px);color:var(--ink);line-height:1}
.stat-cell .num small{font-size:.42em;color:var(--muted);margin-left:4px;font-family:var(--font-sans)}
.stat-cell .lab{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:9px;font-weight:600}

/* ---------- 名录工具条 ---------- */
.toolbar-wrap{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:76px;z-index:40}
.toolbar{padding:16px 0}
.toolbar-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.search-box{position:relative;flex:1 1 320px;min-width:240px}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--muted-2)}
.search-box input{
  width:100%;height:46px;padding:0 44px 0 42px;border:1px solid var(--line-strong);
  background:#fff;border-radius:1px;font-size:14.5px;color:var(--text);font-family:inherit;
}
.search-box input::placeholder{color:var(--muted-2)}
.search-box input:focus{outline:none;border-color:var(--ink-2);box-shadow:0 0 0 3px rgba(23,62,107,.09)}
.search-clear{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);width:30px;height:30px;border:0;
  background:transparent;color:var(--muted-2);font-size:18px;line-height:1;display:none;align-items:center;justify-content:center;
}
.search-box.has-value .search-clear{display:flex}
.result-count{font-size:13px;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.result-count b{color:var(--ink);font-size:15px}

.filters{display:flex;gap:5px;flex-wrap:wrap;margin-top:10px;align-items:center}
.chip{
  border:1px solid var(--line-strong);background:#fff;color:var(--ink-2);
  padding:5px 10px;border-radius:1px;font-size:11.5px;font-weight:600;letter-spacing:.01em;
  transition:.15s;display:inline-flex;align-items:center;gap:5px;line-height:1.3;
}
.chip-select{
  border:1px solid var(--line-strong);background:#fff;color:var(--ink-2);
  padding:6px 12px;border-radius:1px;font-size:12.5px;font-weight:600;font-family:inherit;cursor:pointer;min-width:150px;
}
.chip:hover{border-color:var(--ink-2);background:var(--paper-2)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.chip .n{font-size:11px;opacity:.65;font-variant-numeric:tabular-nums}
.chip-group-label{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);align-self:center;margin-right:4px;min-width:28px}

/* ---------- 结果区 ---------- */
.results{padding:40px 0 88px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.card{
  position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  padding:24px 24px 20px;transition:.2s ease;overflow:hidden;
  text-decoration:none;color:inherit;cursor:pointer;
}
.card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold);
  transform:scaleY(0);transform-origin:top;transition:.22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card:hover::before{transform:scaleY(1)}

.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.card-sector{
  display:inline-flex;align-items:center;gap:6px;
  font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-deep);
}
.card-sector svg{width:14px;height:14px;flex:none;opacity:.85}
.card-lists{display:flex;gap:5px;flex-wrap:wrap}
.badge{
  font-size:9.5px;font-weight:800;letter-spacing:.08em;padding:3px 7px;border-radius:1px;
  background:var(--paper-2);color:var(--ink-2);border:1px solid var(--line);white-space:nowrap;
}
.badge.el{background:#F6EDE4;color:#8A5A22;border-color:#E8D5BE}
.badge.uvl{background:#EEF2F7;color:#3B5F8A;border-color:#D6E0EC}
.badge.meu{background:#F7EDEC;color:#8E3A33;border-color:#EBD6D3}
.badge.ns-cmic{background:#F0EDF6;color:#5B4B7A;border-color:#DDD6EA}
.badge.dod{background:#EDF4EE;color:#33684A;border-color:#D3E4D8}
.badge.fcc{background:#F1F1F2;color:#4A4F55;border-color:#DEDEE1}
.badge.icts{background:#EEF3F0;color:#2F5D4A;border-color:#CFE0D6}
.badge.sdn{background:#F9EDEC;color:#8A2B22;border-color:#EED4D1}
.card h3{font-size:20px;line-height:1.3;margin:0 0 4px;letter-spacing:-.01em}
.card h3{color:var(--ink)}
.card:hover h3{color:var(--ink-3)}
.card-en{font-size:11.5px;color:var(--muted-2);letter-spacing:.01em;margin:0 0 14px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{
  font-size:13.5px;color:var(--muted);line-height:1.65;margin:0 0 18px;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
}
.card-meta{font-size:11.5px;color:var(--muted-2);display:flex;align-items:center;gap:8px}
.card-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.card-arrow{color:var(--ink-2);transition:.2s;display:flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.card:hover .card-arrow{color:var(--gold-deep);transform:translateX(2px)}
.card-arrow svg{width:14px;height:14px}

/* 长列表性能：屏幕外卡片延迟渲染 */
.card{content-visibility:auto;contain-intrinsic-size:0 268px}

/* 空状态 */
.empty{display:none;text-align:center;padding:80px 20px;border:1px dashed var(--line-strong);background:#fff}
.empty.show{display:block}
.empty svg{width:38px;height:38px;color:var(--muted-2);margin:0 auto 16px}
.empty h3{font-size:20px;margin-bottom:8px}
.empty p{color:var(--muted);font-size:14px;margin:0}

/* ---------- 首页区块：行业 / 时间线 / 方法 ---------- */
.sector-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.sector-tile{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#fff;border:1px solid var(--line);padding:18px 18px;transition:.18s;
}
.sector-tile:hover{border-color:var(--ink-2);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.sector-tile .t{display:flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;color:var(--ink)}
.sector-tile .t svg{width:17px;height:17px;flex:none;color:var(--gold-deep);opacity:.9}
.sector-tile .c{font-family:var(--font-serif);font-size:19px;color:var(--gold-deep)}

.timeline{position:relative;margin:0;padding:0;list-style:none}
.timeline::before{content:"";position:absolute;left:88px;top:8px;bottom:8px;width:1px;background:var(--line-strong)}
.tl-item{position:relative;display:grid;grid-template-columns:88px 1fr;gap:30px;padding:0 0 30px}
.tl-year{font-family:var(--font-serif);font-size:17px;color:var(--ink);text-align:right;padding-right:2px;line-height:1.4}
.tl-body{position:relative;padding-left:26px}
.tl-body::before{
  content:"";position:absolute;left:-5px;top:7px;width:9px;height:9px;border-radius:50%;
  background:var(--paper);border:2px solid var(--gold);
}
.tl-date{font-size:11.5px;font-weight:700;letter-spacing:.1em;color:var(--gold-deep);text-transform:uppercase}
.tl-title{font-size:16px;font-weight:600;color:var(--ink);margin:3px 0 5px}
.tl-desc{font-size:13.5px;color:var(--muted);line-height:1.65;margin:0}

.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.prose p{font-size:15px;line-height:1.85;color:var(--muted);margin:0 0 16px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--text)}
.prose h3{font-size:20px;margin:0 0 12px}
.note-list{list-style:none;margin:0;padding:0}
.note-list li{
  position:relative;padding:14px 0 14px 34px;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--text);
}
.note-list li:last-child{border-bottom:0}
.note-list li::before{
  content:"";position:absolute;left:0;top:21px;width:16px;height:16px;
  background:var(--paper-2);border:1px solid var(--gold);border-radius:50%;
}
.note-list li .k{display:block;font-weight:700;font-size:13px;letter-spacing:.04em;color:var(--ink);margin-bottom:3px}
.note-list li .v{font-size:13.5px;color:var(--muted)}

/* ---------- 详情页 ---------- */
.detail-hero{
  background:
    radial-gradient(900px 380px at 85% -30%, rgba(198,161,91,.18), transparent 62%),
    linear-gradient(160deg,#0A1F3C,#0E2A4E 58%,#0B2444);
  color:#fff;padding:44px 0 52px;position:relative;overflow:hidden;
}
.detail-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;mask-image:linear-gradient(180deg,#000,transparent 92%);
}
.detail-hero .wrap{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.04em;color:rgba(255,255,255,.6);margin-bottom:28px;flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:var(--gold-soft)}
.crumbs .sep{opacity:.4}
.detail-hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.12;margin:0 0 10px}
.detail-en{font-size:clamp(12px,1.3vw,14px);color:rgba(255,255,255,.62);letter-spacing:.02em;margin:0 0 22px;max-width:820px}
.detail-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:22px}
.detail-tags .badge{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.22);color:#fff;font-size:10px;padding:4px 9px}
.detail-tags .badge.el,.detail-tags .badge.meu,.detail-tags .badge.sdn{background:rgba(198,161,91,.18);border-color:rgba(198,161,91,.4);color:var(--gold-soft)}

.detail-body{padding:56px 0 88px}
.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.detail-main{min-width:0}
.block{margin-bottom:48px}
.block:last-child{margin-bottom:0}
.block-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.block-num{
  font-family:var(--font-serif);font-size:13px;color:var(--gold-deep);letter-spacing:.06em;
  border:1px solid var(--line-strong);padding:4px 9px;background:#fff;flex:none;
}
.block-title{font-size:clamp(20px,2.4vw,26px);line-height:1.3}
.block h3.sub{font-size:17px;margin:26px 0 10px;color:var(--ink)}
.block p{font-size:15.5px;line-height:1.9;color:#333A44;margin:0 0 16px}
.block p:last-child{margin-bottom:0}
.block p.lead{font-size:17px;color:var(--text);line-height:1.85}

.quote-block{
  border-left:3px solid var(--gold);background:#fff;padding:22px 26px;margin:24px 0;
  border-right:1px solid var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.quote-block p{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted)}
.quote-block .src{display:block;margin-top:12px;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--gold-deep);font-weight:700}

/* 侧栏 */
.sidebar{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px}
.fact-card{background:#fff;border:1px solid var(--line);padding:24px}
.fact-card h2{
  font-family:var(--font-sans);font-size:10.5px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted-2);margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.fact-row{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
.fact-row:last-of-type{border-bottom:0}
.fact-row dt{color:var(--muted);flex:none}
.fact-row dd{margin:0;text-align:right;color:var(--text);font-weight:600;word-break:break-word}
.fact-row dd a{font-weight:600}
.link-btn{
  display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;
  padding:12px 16px;background:var(--ink);color:#fff;font-size:12px;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;margin-top:8px;transition:.16s;
}
.link-btn:hover{background:var(--ink-3);color:#fff}
.link-btn svg{width:13px;height:13px;flex:none}
.link-btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line-strong)}
.link-btn.secondary:hover{background:var(--paper-2);color:var(--ink)}

/* 时间线事件（详情页） */
.event-list{list-style:none;margin:0;padding:0}
.event{display:grid;grid-template-columns:112px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.event:first-child{padding-top:0}
.event:last-child{border-bottom:0;padding-bottom:0}
.event-date{font-family:var(--font-serif);font-size:14.5px;color:var(--ink);line-height:1.5}
.event-date .yr{display:block;font-size:11px;color:var(--muted-2)}
.event-body .badge{margin-bottom:7px}
.event-body p{margin:0;font-size:14px;line-height:1.75;color:var(--muted)}
.event-body .src-line{display:block;margin-top:6px;font-size:11px;color:var(--muted-2)}

/* 相关实体 */
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.related-item{
  display:block;background:#fff;border:1px solid var(--line);padding:16px 18px;transition:.16s;
}
.related-item:hover{border-color:var(--ink-2);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.related-item .n{font-size:14.5px;font-weight:600;color:var(--ink);display:block;margin-bottom:3px}
.related-item .s{font-size:11px;color:var(--muted-2);letter-spacing:.04em}

/* 来源 */
.sources{list-style:none;margin:0;padding:0;counter-reset:src}
.sources li{
  position:relative;padding:12px 0 12px 34px;border-bottom:1px solid var(--line);font-size:13.5px;
}
.sources li:last-child{border-bottom:0}
.sources li::before{
  counter-increment:src;content:"[" counter(src) "]";position:absolute;left:0;top:12px;
  font-size:11px;color:var(--gold-deep);font-weight:700;letter-spacing:.04em;
}
.sources a{color:var(--ink-3);word-break:break-all}

/* ---------- 方法页 ---------- */
.page-hero{background:linear-gradient(160deg,#0A1F3C,#0E2A4E);color:#fff;padding:36px 0 32px;position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:60px 60px;mask-image:linear-gradient(180deg,#000,transparent 90%);
}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(26px,3.4vw,40px);margin:0 0 10px}
.page-hero p{color:rgba(255,255,255,.78);max-width:720px;font-size:14.5px;line-height:1.7;margin:0}

.legal{max-width:820px}
.legal h2{font-size:24px;margin:44px 0 14px}
.legal h2:first-child{margin-top:0}
.legal p,.legal li{font-size:15px;line-height:1.9;color:#333A44}
.legal ul{padding-left:22px}
.legal li{margin-bottom:8px}
.def-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:13.5px}
.def-table th,.def-table td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.def-table th{background:var(--paper-2);font-weight:700;color:var(--ink);width:120px;white-space:nowrap}
.def-table td{color:var(--muted)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:rgba(255,255,255,.66);padding:60px 0 0;font-size:13.5px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer h4{font-family:var(--font-sans);font-size:10.5px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-soft);margin:0 0 16px}
.footer-brand .brand-zh{color:#fff}
.footer-brand .brand-en{color:rgba(255,255,255,.4)}
.footer-brand p{max-width:340px;line-height:1.8;margin:18px 0 0;color:rgba(255,255,255,.54)}
.footer ul{list-style:none;margin:0;padding:0}
.footer li{margin-bottom:10px}
.footer a{color:rgba(255,255,255,.68)}
.footer a:hover{color:var(--gold-soft)}
.footer-bottom{padding:22px 0 30px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.44)}
.footer-bottom .gold{color:var(--gold-soft)}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;background:var(--ink);color:#fff;
  border:0;border-radius:1px;display:grid;place-items:center;box-shadow:var(--shadow-md);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--ink-3)}
.to-top svg{width:17px;height:17px}

/* ---------- 动效 ---------- */
/* 滚动动画：内容默认可见；JS 加 .reveal-init 后才隐藏，脚本失效时也不会出现空白 */
.reveal{opacity:1;transform:none}
.reveal.reveal-init{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.reveal-init.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-card{max-width:520px}
  .detail-layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static;order:2}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:36px}
}
@media (max-width:860px){
  .nav{display:none}
  .burger{display:flex}
  .nav.open{
    display:flex;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
    padding:10px 18px 18px;gap:2px;
  }
  .nav.open a{padding:14px 6px;border-bottom:1px solid var(--line);border-radius:0}
  .nav.open a[aria-current="page"]::after{display:none}
  .nav.open .nav-cta{margin:12px 0 0;text-align:center;justify-content:center;display:flex}
  .masthead{position:sticky}
  .stats-strip .wrap{grid-template-columns:1fr 1fr}
  .stat-cell{padding:20px 16px;border-bottom:1px solid var(--line)}
  .stat-cell:nth-child(2n){border-right:0}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){padding-top:22px}
  .stat-cell:nth-child(3),.stat-cell:nth-child(4){border-bottom:0}
  .stat-cell:first-child{padding-left:16px}
  .toolbar-wrap{position:static}
  .section{padding:56px 0}
  .utlity .wrap, .utility .wrap{height:auto;padding:8px 24px}
  .utility .right{display:none}
  .timeline::before{left:64px}
  .tl-item{grid-template-columns:64px 1fr;gap:20px}
  .tl-body{padding-left:22px}
  .tl-year{font-size:15px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .masthead .wrap{height:64px;gap:14px}
  .brand-mark{width:34px;height:34px}
  .brand-mark svg{width:19px;height:19px}
  .brand-zh{font-size:17px}
  .hero .wrap{padding-top:52px;padding-bottom:60px}
  .hero h1 .accent{font-size:.5em}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{justify-content:center;padding:15px 22px}
  .grid{grid-template-columns:1fr;gap:14px}
  .card{padding:20px 18px 16px}
  .card h3{font-size:18.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:26px}
  .stats-strip .wrap{grid-template-columns:1fr 1fr}
  .stat-cell .num{font-size:28px}
  .detail-hero{padding:30px 0 38px}
  .detail-body{padding:36px 0 64px}
  .detail-tags .badge{font-size:9.5px}
  .block{margin-bottom:38px}
  .block p{font-size:15px;line-height:1.85}
  .event{grid-template-columns:1fr;gap:6px}
  .fact-card{padding:20px 18px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer{padding-top:44px}
  .sector-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr}
  .timeline::before{display:none}
  .tl-item{grid-template-columns:1fr;gap:6px;padding-bottom:26px}
  .tl-year{text-align:left}
  .tl-body{padding-left:0}
  .tl-body::before{display:none}
  .to-top{right:14px;bottom:14px;width:42px;height:42px}
}
@media (max-width:400px){
  .sector-grid{grid-template-columns:1fr}
}

.detail-tags .badge svg{width:12px;height:12px;vertical-align:-2px;margin-right:4px;opacity:.8}

.ico{width:14px;height:14px;flex:none;display:inline-block;vertical-align:-2px}
.card-sector .ico{opacity:.85}
.sector-tile .ico{width:17px;height:17px;color:var(--gold-deep);opacity:.9}
.detail-tags .ico{width:12px;height:12px;margin-right:3px;opacity:.8}

.detail-quick{margin:20px 0 0;padding:14px 18px;background:rgba(255,255,255,.06);border-left:2px solid var(--gold);color:rgba(255,255,255,.86);font-size:14.5px;line-height:1.8;max-width:900px}
@media (max-width:640px){.detail-quick{padding:12px 14px;font-size:13.5px}}

/* 移动端筛选折叠 */
.filter-toggle{display:none;padding:10px 18px;background:#fff;border:1px solid var(--line-strong);color:var(--ink);font-size:13px;font-weight:700;letter-spacing:.06em;border-radius:1px}
.filter-toggle[aria-expanded="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
@media (max-width:640px){
  .filter-toggle{display:inline-flex;align-items:center;justify-content:center}
  .filter-panel{display:none}
  .filter-panel.open{display:block}
  .filter-panel .filters:first-child{margin-top:14px}
  .toolbar-row{gap:10px}
  .search-box{flex:1 1 100%;min-width:0}
  .result-count{order:3}
}

/* 上一条 / 下一条 */
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.pn-item{display:flex;flex-direction:column;gap:5px;padding:16px 18px;background:#fff;border:1px solid var(--line);transition:.16s;text-decoration:none}
.pn-item:hover{border-color:var(--ink-2);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.pn-item.pn-next{text-align:right}
.pn-item.pn-empty{background:transparent;border:0;pointer-events:none}
.pn-lab{font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-deep)}
.pn-name{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.45}
@media (max-width:640px){.prev-next{grid-template-columns:1fr;gap:10px}}

/* ============ 打印样式 ============ */
@media print{
  :root{--paper:#fff;--line:#ccc}
  body{background:#fff;color:#000;font-size:11pt}
  .utility,.masthead,.footer,.to-top,.prev-next,.sidebar .link-btn,.related-grid,.results,.toolbar-wrap,.hero,.page-hero,.detail-hero::before{display:none !important}
  .detail-hero{background:#fff !important;color:#000 !important;padding:0 0 16px;border-bottom:2px solid #000}
  .detail-hero h1{color:#000;font-size:22pt}
  .detail-en,.crumbs,.detail-tags .badge{color:#333 !important;border-color:#999 !important;background:transparent !important}
  .detail-tags{display:none}
  .detail-layout{display:block}
  .sidebar{position:static;margin-top:20px}
  .fact-card{border:1px solid #999;break-inside:avoid}
  .block{break-inside:avoid;margin-bottom:20px}
  .block p{font-size:10.5pt;line-height:1.6;color:#000}
  .quote-block{border:1px solid #999;background:#f7f7f7}
  .block-num,.block-title{color:#000}
  a{color:#000;text-decoration:none}
  .sources a{word-break:break-all}
}

/* 时间线：英文原文折叠 */
.tl-orig{margin-top:10px;border:1px solid var(--line);background:#fff}
.tl-orig summary{cursor:pointer;padding:9px 14px;font-size:11.5px;font-weight:600;letter-spacing:.06em;color:var(--muted);list-style:none}
.tl-orig summary::-webkit-details-marker{display:none}
.tl-orig summary::before{content:"▸ ";color:var(--gold-deep)}
.tl-orig[open] summary::before{content:"▾ "}
.tl-orig summary:hover{color:var(--ink)}
.tl-orig p{margin:0;padding:0 14px 12px;font-size:12.5px;line-height:1.7;color:var(--muted)}