/* =========================================================
   千嬴国际官 CN · /assets/site.css
   共享外壳：页头命令栏 / 页脚落款 / 通用排版 / 基础组件
   ========================================================= */

/* ---------- 0. 设计变量 ---------- */
:root{
  --ink-green:#0F3D2E;
  --ink-green-deep:#0A2A1F;
  --gold:#C9A227;
  --gold-light:#E3C97A;
  --paper:#F7F4EC;
  --paper-2:#EFE9DD;
  --cinnabar:#C0392B;
  --rock:#6B6B63;
  --moss:#4A6B52;
  --clay:#B96A4B;
  --ink:#1A1A18;
  --text-soft:#3A3A34;
  --line:rgba(15,61,46,.16);
  --line-gold:rgba(201,162,39,.42);
  --line-paper:rgba(247,244,236,.14);
  --shadow-soft:0 1px 0 rgba(26,26,24,.05), 0 18px 30px -26px rgba(15,61,46,.72);
  --font-head:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --wrap:1240px;
  --gutter:clamp(16px,3.2vw,40px);
  --gap:clamp(16px,2.4vw,32px);
  --radius:3px;
}

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:112px}
body{
  margin:0;
  background-color:var(--paper);
  background-image:linear-gradient(180deg,rgba(239,233,221,.7),rgba(247,244,236,0) 460px);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
main{display:block}
img,svg{max-width:100%}
button{font:inherit;color:inherit}
::selection{background:var(--gold-light);color:var(--ink)}

/* ---------- 2. 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:700;
  letter-spacing:.05em;
  color:var(--ink-green);
  line-height:1.32;
  margin:0 0 .6em;
}
h1{font-size:clamp(30px,4.6vw,48px)}
h2{font-size:clamp(23px,2.6vw,32px)}
h3{font-size:clamp(19px,2vw,24px)}
h4{font-size:18px;letter-spacing:.06em}
p{margin:0 0 1.1em}
a{color:var(--ink-green);text-decoration:none;border-bottom:1px solid rgba(15,61,46,.28);transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--cinnabar);border-bottom-color:var(--cinnabar)}
strong{font-weight:700}
small{font-size:13.5px;color:var(--rock)}
.mono,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.muted{color:var(--rock)}
.lead{font-size:clamp(17px,1.5vw,19px);line-height:1.8;color:var(--text-soft)}
.prose{max-width:68ch}
.prose p{margin:0 0 1.15em}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.3em}
.prose li{margin:.35em 0}

/* ---------- 3. 布局工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:var(--gap);align-items:start}
.layout__rail{position:sticky;top:112px;min-width:0}
.layout__main{min-width:0}
.stack{display:flex;flex-direction:column;gap:clamp(14px,2vw,22px)}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:var(--gap)}
.rule-ticks{height:7px;margin:clamp(26px,4vw,48px) 0;border-bottom:1px solid var(--line);background-image:repeating-linear-gradient(90deg,var(--line-gold) 0 1px,transparent 1px 22px);background-repeat:repeat-x}
.section{padding:clamp(28px,4.4vw,64px) 0}

/* ---------- 4. 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  padding:12px 20px;border:1px solid transparent;border-radius:var(--radius);
  font-family:var(--font-body);font-size:15px;font-weight:600;letter-spacing:.08em;line-height:1;
  text-decoration:none;border-bottom-width:1px;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn--gold{background:var(--gold);border-color:var(--gold);color:#1A1A18}
.btn--gold:hover{background:var(--gold-light);border-color:var(--gold-light);color:#1A1A18;transform:translateY(-1px);box-shadow:0 12px 22px -16px rgba(201,162,39,.9)}
.btn--ghost{background:transparent;border-color:rgba(227,201,122,.55);color:var(--gold-light)}
.btn--ghost:hover{background:rgba(227,201,122,.14);border-color:var(--gold-light);color:#fff;transform:translateY(-1px)}
.btn--cinnabar{background:var(--cinnabar);border-color:var(--cinnabar);color:#fff}
.btn--cinnabar:hover{background:#A93226;border-color:#A93226;color:#fff;transform:translateY(-1px)}
.btn--ink{background:var(--ink-green);border-color:var(--ink-green);color:var(--paper)}
.btn--ink:hover{background:#0B3225;border-color:#0B3225;color:var(--gold-light);transform:translateY(-1px)}

/* ---------- 5. 页头：紧凑命令栏 ---------- */
.skip-link{
  position:absolute;left:14px;top:-70px;z-index:200;
  padding:10px 18px;background:var(--gold);color:#1A1A18;
  font-size:14px;font-weight:600;letter-spacing:.08em;border-radius:var(--radius);border-bottom:1px solid var(--gold);
  transition:top .22s ease;
}
.skip-link:focus{top:14px;color:#1A1A18}

.site-header{
  position:sticky;top:0;z-index:90;
  background-color:var(--ink-green);
  background-image:linear-gradient(180deg,#11423299,#0C3325);
  color:var(--paper);
  box-shadow:0 1px 0 rgba(201,162,39,.28), 0 20px 32px -28px rgba(10,42,31,.95);
}
.read-progress{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(247,244,236,.12);pointer-events:none}
.read-progress__bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
  transition:transform .12s linear;
}
.cmd{position:relative}
.cmd__inner{display:flex;align-items:center;gap:clamp(12px,2vw,26px);min-height:70px}

.cmd__brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--paper);border-bottom:0}
.cmd__brand:hover{color:var(--paper);border-bottom:0}
.cmd__seal{
  width:40px;height:40px;flex:0 0 auto;display:grid;place-items:center;
  border:1px solid var(--gold);border-radius:var(--radius);
  background:rgba(201,162,39,.12);
  box-shadow:inset 0 0 0 3px rgba(12,51,37,.85);
  color:var(--gold);font-family:var(--font-head);font-weight:700;font-size:20px;letter-spacing:0;
}
.cmd__brandtext{display:flex;flex-direction:column;line-height:1.18}
.cmd__name{font-family:var(--font-head);font-weight:700;font-size:19px;letter-spacing:.14em;color:var(--gold)}
.cmd__tagline{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;color:rgba(247,244,236,.6);margin-top:3px}

.cmd__nav{flex:1 1 auto;min-width:0}
.cmd__list{display:flex;align-items:center;justify-content:flex-end;gap:2px;margin:0;padding:0;list-style:none}
.cmd__link{
  position:relative;display:inline-flex;align-items:baseline;gap:7px;
  padding:10px 12px;border-bottom:0;border-radius:var(--radius);
  color:rgba(247,244,236,.86);font-size:15px;letter-spacing:.06em;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.cmd__link:hover{background:rgba(247,244,236,.09);color:#fff;border-bottom:0}
.cmd__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.04em;color:var(--gold)}
.cmd__link[aria-current="page"]{
  background:rgba(192,57,43,.26);color:#fff;
  box-shadow:inset 0 -2px 0 var(--cinnabar);
}
.cmd__link[aria-current="page"] .cmd__idx{color:var(--gold-light)}

.cmd__cta{flex:0 0 auto}

.cmd__toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 13px;background:transparent;border:1px solid rgba(201,162,39,.5);
  border-radius:var(--radius);color:var(--gold-light);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.cmd__toggle:hover{background:rgba(201,162,39,.14);color:#fff}
.cmd__toggle[aria-expanded="true"]{background:rgba(201,162,39,.2);border-color:var(--gold);color:#fff}
.cmd__toggle-bars{display:flex;flex-direction:column;justify-content:center;gap:3px;width:16px}
.cmd__toggle-bars i{display:block;height:1px;background:currentColor}

.cmd__rule{
  height:8px;border-top:1px solid rgba(201,162,39,.34);
  background-image:repeating-linear-gradient(90deg,rgba(201,162,39,.55) 0 1px,transparent 1px 26px);
  background-repeat:repeat-x;background-position:0 0;
}

/* ---------- 6. 页脚：落款与索引 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  background-color:var(--ink-green-deep);
  background-image:linear-gradient(180deg,#0C3225,#081F17);
  color:rgba(247,244,236,.82);
}
.foot__rule{
  height:8px;border-bottom:1px solid rgba(201,162,39,.3);
  background-image:repeating-linear-gradient(90deg,rgba(201,162,39,.6) 0 1px,transparent 1px 28px);
  background-repeat:repeat-x;
}
.foot__inner{
  display:grid;grid-template-columns:minmax(230px,1.15fr) minmax(0,2.5fr);
  gap:clamp(24px,4vw,64px);
  padding-top:clamp(32px,5vw,58px);padding-bottom:clamp(20px,3vw,34px);
}
.foot__brand{min-width:0}
.foot__seal{
  display:inline-grid;place-items:center;width:60px;height:60px;
  border:2px solid var(--cinnabar);border-radius:var(--radius);
  background:rgba(192,57,43,.1);color:#E0665A;
  font-family:var(--font-head);font-weight:700;font-size:17px;letter-spacing:.06em;
}
.foot__name{font-family:var(--font-head);font-weight:700;font-size:20px;letter-spacing:.16em;color:var(--gold);margin:16px 0 4px}
.foot__tagline{margin:0;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:rgba(247,244,236,.55)}
.foot__cta{margin-top:18px}

.foot__cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.foot__col{min-width:0}
.foot__title{font-family:var(--font-mono);font-weight:500;font-size:12px;letter-spacing:.22em;color:var(--gold-light);margin:0 0 14px}
.foot__links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.foot__link{
  color:rgba(247,244,236,.78);font-size:15px;border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .18s ease,border-color .18s ease;
}
.foot__link:hover{color:var(--gold-light);border-bottom-color:rgba(227,201,122,.55)}

.foot__meta{
  grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  margin-top:clamp(10px,2vw,20px);padding-top:20px;
  border-top:1px solid var(--line-paper);
  font-size:13.5px;color:rgba(247,244,236,.6);
}
.foot__contact{margin:0;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em;line-height:1.7}
.foot__icp{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em}
.foot__copy{margin:0;font-size:13px}
.to-top{
  margin-left:auto;display:inline-flex;align-items:center;gap:8px;
  padding:9px 15px;background:transparent;border:1px solid rgba(201,162,39,.5);
  border-radius:var(--radius);color:var(--gold-light);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.to-top:hover{background:rgba(201,162,39,.16);border-color:var(--gold);color:#fff}

/* ---------- 7. 页头/标题块 ---------- */
.page-head{padding:clamp(28px,4.4vw,60px) 0 clamp(18px,2.4vw,30px);border-bottom:1px solid var(--line)}
.page-head__title{margin:0 0 14px}
.page-head__desc{max-width:62ch;margin:0;color:var(--text-soft);font-size:17px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin:0 0 14px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.26em;color:var(--rock);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
.sec-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:12px 14px;margin:0 0 20px}
.sec-head__no{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;color:var(--gold);
  border:1px solid var(--line-gold);border-radius:var(--radius);background:rgba(201,162,39,.1);padding:3px 9px;
}
.sec-head__title{margin:0;font-size:clamp(21px,2.4vw,32px)}
.sec-head__note{margin-left:auto;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--rock)}
.sec-head--light .sec-head__title{color:var(--paper)}
.sec-head--light .sec-head__no{border-color:rgba(227,201,122,.5);color:var(--gold-light);background:rgba(227,201,122,.1)}
.sec-head--light .sec-head__note{color:rgba(247,244,236,.6)}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{margin:0 0 18px}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:4px;margin:0;padding:0;list-style:none;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--rock)}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li:not(:first-child)::before{content:"／";color:var(--gold);margin-right:6px}
.breadcrumb a{color:var(--rock);border-bottom:0}
.breadcrumb a:hover{color:var(--ink-green)}
.breadcrumb [aria-current="page"]{color:var(--ink-green)}

/* ---------- 9. 侧栏索引导航 ---------- */
.rail-nav{display:flex;flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;border-left:1px solid var(--line)}
.rail-nav__title{margin:0 0 12px 14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;color:var(--rock)}
.rail-nav__link{
  display:flex;align-items:baseline;gap:10px;padding:9px 10px 9px 13px;
  margin-left:-1px;border-left:2px solid transparent;border-bottom:0;
  color:var(--rock);font-size:15px;transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.rail-nav__link:hover{color:var(--ink-green);background:rgba(227,201,122,.18);border-bottom:0}
.rail-nav__link[aria-current="true"]{
  color:var(--ink-green);font-weight:600;
  border-left-color:var(--gold);background:rgba(227,201,122,.22);
}
.rail-nav__no{font-family:var(--font-mono);font-size:11px;color:var(--gold)}

/* ---------- 10. 卡片与框景 ---------- */
.card{
  position:relative;min-width:0;padding:clamp(18px,2.2vw,26px);
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:0 1px 0 rgba(26,26,24,.05),0 26px 38px -28px rgba(15,61,46,.8)}
.card--tint{background:var(--paper-2)}
.card--ink{background:var(--ink-green);border-color:rgba(201,162,39,.34);color:rgba(247,244,236,.86)}
.card--ink .card__title{color:var(--gold-light)}
.card--ink .card__body{color:rgba(247,244,236,.82)}
.card__label{display:block;margin-bottom:10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--rock)}
.card--ink .card__label{color:var(--gold)}
.card__title{margin:0 0 10px;font-size:20px;letter-spacing:.04em}
.card__body{margin:0;font-size:16px;color:var(--text-soft)}
.card__meta{margin:16px 0 0;padding-top:12px;border-top:1px dashed var(--line);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--rock)}
.card--ink .card__meta{border-top-color:rgba(247,244,236,.2);color:rgba(247,244,236,.62)}

.frame{
  position:relative;padding:clamp(22px,3.2vw,44px);
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
}
.frame::before,.frame::after{content:"";position:absolute;width:20px;height:20px;border:1px solid var(--gold)}
.frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.frame--ink{background:var(--ink-green);border-color:rgba(201,162,39,.34);color:var(--paper)}
.frame--ink h1,.frame--ink h2,.frame--ink h3{color:var(--gold-light)}

/* ---------- 11. 通栏强调带 ---------- */
.band{
  background:var(--ink-green);color:var(--paper);
  border-top:1px solid rgba(201,162,39,.36);border-bottom:1px solid rgba(201,162,39,.36);
}
.band--gold{background:var(--gold);color:#1A1A18;border-color:rgba(26,26,24,.22)}
.band--paper{background:var(--paper-2);color:var(--ink);border-color:var(--line)}
.band__inner{display:flex;flex-wrap:wrap;align-items:center;gap:clamp(16px,3vw,40px);padding:clamp(24px,3.4vw,42px) 0}
.band__eyebrow{margin:0 0 8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.22em;opacity:.78}
.band__title{margin:0;font-size:clamp(20px,2.4vw,28px);letter-spacing:.06em}
.band__text{margin:8px 0 0;font-size:15px;line-height:1.7;opacity:.85;max-width:56ch}
.band--gold .band__title,.band--paper .band__title{color:inherit}
.band--gold .band__title{color:#1A1A18}
.band--paper .band__title{color:var(--ink-green)}
.band__action{margin-left:auto}

/* ---------- 12. 价格 / 标签 / 数据 ---------- */
.price{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-mono)}
.price__num{font-size:clamp(26px,3vw,36px);font-weight:700;letter-spacing:-.01em;color:var(--cinnabar)}
.price__unit{font-size:13px;letter-spacing:.1em;color:var(--rock)}
.price--gold .price__num{color:var(--gold)}
.price--paper .price__num{color:var(--paper)}
.band--gold .price__num{color:#8C2F22}
.band--gold .price__unit{color:rgba(26,26,24,.7)}

.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;
  border:1px solid var(--line-gold);border-radius:var(--radius);
  background:rgba(74,107,82,.09);color:var(--moss);
}
.tag--clay{border-color:rgba(185,106,75,.55);background:rgba(185,106,75,.1);color:var(--clay)}
.tag--cinnabar{border-color:rgba(192,57,43,.45);background:rgba(192,57,43,.08);color:var(--cinnabar)}
.tag--ink{border-color:rgba(15,61,46,.4);background:rgba(15,61,46,.07);color:var(--ink-green)}

.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.fact{background:var(--paper);padding:16px 18px}
.fact__k{margin:0 0 6px;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--rock)}
.fact__v{margin:0;font-family:var(--font-mono);font-size:20px;color:var(--ink-green)}

/* ---------- 13. 表格 ---------- */
.ledger-wrap{overflow-x:auto;border-radius:var(--radius)}
.ledger{width:100%;min-width:520px;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);font-size:15.5px}
.ledger caption{padding:10px 0;text-align:left;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;color:var(--rock)}
.ledger th,.ledger td{padding:13px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.ledger thead th{
  background:var(--ink-green);color:var(--paper);border-bottom-color:rgba(201,162,39,.44);
  font-family:var(--font-mono);font-weight:500;font-size:12.5px;letter-spacing:.14em;
}
.ledger tbody tr:nth-child(even){background:var(--paper-2)}
.ledger tbody tr:hover{background:rgba(227,201,122,.22)}
.ledger td .price__num{font-size:19px}

/* ---------- 14. 折叠面板 / 筛选 ---------- */
.fold{margin-bottom:10px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.fold>summary{
  display:flex;align-items:center;gap:12px;padding:16px 18px;cursor:pointer;list-style:none;
  font-family:var(--font-head);font-weight:700;font-size:17px;letter-spacing:.04em;color:var(--ink-green);
}
.fold>summary::-webkit-details-marker{display:none}
.fold>summary::after{content:"＋";margin-left:auto;font-family:var(--font-mono);font-size:15px;color:var(--gold)}
.fold[open]>summary{background:var(--paper-2);border-bottom:1px solid var(--line)}
.fold[open]>summary::after{content:"－";color:var(--cinnabar)}
.fold__body{padding:16px 18px;font-size:16px;color:var(--text-soft)}
.fold__body>*:last-child{margin-bottom:0}

.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.filter-btn{
  padding:8px 14px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  color:var(--rock);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.filter-btn:hover{border-color:var(--gold);color:var(--ink-green)}
.filter-btn[aria-pressed="true"]{background:var(--ink-green);border-color:var(--ink-green);color:var(--gold-light)}
.is-hidden{display:none !important}

/* ---------- 15. 图片容器 ---------- */
.img-frame{
  display:block;padding:8px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius);
}
.img-frame__inner{
  display:block;position:relative;overflow:hidden;aspect-ratio:16 / 9;
  border:1px solid rgba(15,61,46,.14);
  background-color:var(--paper-2);
  background-image:linear-gradient(135deg,rgba(74,107,82,.38),rgba(201,162,39,.3) 46%,rgba(15,61,46,.42));
}
.img-frame__inner img{display:block;width:100%;height:100%;object-fit:cover}
.img-frame__cap{display:block;margin-top:10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--rock)}
.img-frame--4x3 .img-frame__inner{aspect-ratio:4 / 3}
.img-frame--1x1 .img-frame__inner{aspect-ratio:1 / 1}
.img-frame--wide .img-frame__inner{aspect-ratio:21 / 9}
.img-frame--ink{background:var(--ink-green);border-color:rgba(201,162,39,.34)}
.img-frame--ink .img-frame__cap{color:rgba(247,244,236,.65)}

/* ---------- 16. 显现动效 ---------- */
html.has-js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .62s ease,transform .62s cubic-bezier(.22,.61,.36,1)}
html.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 17. 焦点可见 ---------- */
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--gold-light);
  outline-offset:2px;
  border-radius:var(--radius);
}
.site-footer a:focus-visible,.site-footer button:focus-visible{outline-color:var(--gold)}

/* ---------- 18. 响应式 ---------- */
@media (max-width:1024px){
  .cmd__link{padding:10px 9px;font-size:14.5px}
  .cmd__tagline{display:none}
}
@media (max-width:960px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .layout__rail{position:static}
  .rail-nav{border-left:0;border-top:1px solid var(--line);padding-top:12px}
  .rail-nav__link{margin-left:0}
  .foot__inner{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  html{scroll-padding-top:96px}
  .cmd__inner{flex-wrap:wrap;min-height:60px;padding-top:10px;padding-bottom:10px;gap:10px}
  .cmd__cta{margin-left:auto;padding:10px 14px;font-size:14px}
  .cmd__toggle{display:inline-flex}
  .cmd__nav{
    display:none;order:5;flex:1 0 100%;min-width:0;
    margin-top:6px;padding:6px 0 10px;border-top:1px solid rgba(201,162,39,.3);
  }
  .cmd__nav[data-open]{display:block}
  .cmd__list{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0}
  .cmd__link{
    width:100%;justify-content:flex-start;padding:13px 6px;font-size:16px;
    border-bottom:1px solid rgba(247,244,236,.09);border-radius:0;
  }
  .cmd__link[aria-current="page"]{box-shadow:inset 3px 0 0 var(--cinnabar);background:rgba(192,57,43,.2)}
  .foot__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  body{font-size:16.5px}
  .cmd__seal{width:34px;height:34px;font-size:17px}
  .cmd__name{font-size:17px;letter-spacing:.1em}
  .cmd__cta{padding:9px 12px;font-size:13px;letter-spacing:.04em}
  .cmd__toggle-text{display:none}
  .foot__cols{grid-template-columns:minmax(0,1fr);gap:22px}
  .foot__meta{flex-direction:column;align-items:flex-start}
  .to-top{margin-left:0}
  .band__action{margin-left:0;width:100%}
  .band__action .btn{width:100%}
  .facts{grid-template-columns:repeat(auto-fit,minmax(130px,1fr))}
  .ledger{min-width:480px}
}

/* ---------- 19. 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html.has-js [data-reveal]{opacity:1;transform:none}
  .read-progress__bar{transition:none}
  .card:hover,.btn:hover{transform:none}
}