/* =====================================================================
   北单品牌站 · 共享样式 /assets/site.css
   纸感资料馆 + 数字仪表盘 · 只负责 reset、变量、页头页脚、通用组件
   ===================================================================== */

/* ---------- 1. 变量 ---------- */
:root{
  --bd-paper:#F4EFE6;
  --bd-paper-2:#E8DFD1;
  --bd-paper-3:#FBF8F2;
  --bd-rule:#C9B79F;
  --bd-ochre:#8C3B22;
  --bd-ochre-2:#A2472A;
  --bd-tea:#6B3A24;
  --bd-ink:#2C3A46;
  --bd-ink-deep:#1A2229;
  --bd-amber:#FF9A1F;
  --bd-jade:#3E7C74;
  --bd-jade-2:#9CCFC7;
  --bd-muted:#5A6B78;
  --bd-body:#33424E;

  --bd-shell:1160px;
  --bd-gutter:clamp(16px,4vw,40px);
  --bd-ticker-h:34px;

  --bd-r-sm:4px;
  --bd-r-md:8px;
  --bd-r-lg:16px;
  --bd-r-pill:999px;

  --bd-shadow:0 1px 0 rgba(201,183,159,.55), 0 14px 30px -24px rgba(26,34,41,.6);

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

  --bd-progress:0;
}

/* ---------- 2. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video,canvas{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{
  outline:2px solid var(--bd-amber);
  outline-offset:3px;
  border-radius:2px;
}

/* ---------- 3. 中文排版与页身 ---------- */
body{
  background-color:var(--bd-paper);
  background-image:
    linear-gradient(180deg,rgba(201,183,159,.22) 0 1px,transparent 1px),
    radial-gradient(1200px 600px at 82% -8%,rgba(255,154,31,.07),transparent 62%),
    radial-gradient(900px 500px at 4% 8%,rgba(140,59,34,.05),transparent 60%);
  background-repeat:repeat-x,no-repeat,no-repeat;
  background-size:100% 6px,auto,auto;
  background-position:0 0,0 0,0 0;
  color:var(--bd-body);
  font-family:var(--bd-sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{color:var(--bd-ink);line-height:1.3}
h1{font-family:var(--bd-serif);font-weight:900}
h2{font-family:var(--bd-serif);font-weight:900}
h3{font-family:var(--bd-serif);font-weight:900;font-size:20px;line-height:1.45}
p{text-wrap:pretty}
::selection{background:var(--bd-amber);color:var(--bd-ink-deep)}

.bd-mono{
  font-family:var(--bd-mono);
  font-size:.92em;
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}

/* ---------- 4. 跳转链接 ---------- */
.bd-skip{
  position:fixed;
  top:8px;left:8px;
  z-index:300;
  transform:translateY(-220%);
  padding:10px 16px;
  border-radius:var(--bd-r-sm);
  background:var(--bd-ink-deep);
  color:var(--bd-amber);
  font-family:var(--bd-mono);
  font-size:13px;
  letter-spacing:.04em;
  transition:transform .18s ease;
}
.bd-skip:focus{transform:translateY(0)}

/* ---------- 5. 容器与主区 ---------- */
.bd-shell,
.bd-header__inner,
.bd-footer__grid,
.bd-footer__barInner,
.bd-footer__baseInner{
  width:100%;
  max-width:calc(var(--bd-shell) + var(--bd-gutter) * 2);
  margin-inline:auto;
  padding-inline:var(--bd-gutter);
}

.bd-main{display:block;min-height:60vh;padding-bottom:clamp(8px,2vw,24px)}

/* ---------- 6. 刻度带 ---------- */
.bd-ticker{
  position:relative;
  height:var(--bd-ticker-h);
  display:flex;
  align-items:center;
  background:var(--bd-ink-deep);
  color:#D9D2C4;
  overflow:hidden;
  z-index:60;
}
.bd-ticker__scale{
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(244,239,230,.30) 0 1px,transparent 1px 16px),
    repeating-linear-gradient(90deg,rgba(255,154,31,.50) 0 1px,transparent 1px 80px);
  background-repeat:repeat-x,repeat-x;
  background-size:100% 7px,100% 15px;
  background-position:left bottom,left bottom;
}
.bd-ticker__progress{
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:linear-gradient(90deg,var(--bd-amber),#D9772B 55%,var(--bd-jade));
  transform:scaleX(var(--bd-progress));
  transform-origin:0 50%;
  pointer-events:none;
}
.bd-ticker__meta{
  position:relative;
  z-index:1;
  margin-left:auto;
  padding-right:var(--bd-gutter);
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--bd-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  line-height:1;
  white-space:nowrap;
  color:rgba(217,210,196,.82);
}
.bd-ticker__issue b{color:var(--bd-amber);font-weight:600}
.bd-ticker__dot{
  width:4px;height:4px;
  border-radius:50%;
  background:var(--bd-jade-2);
  opacity:.7;
}

/* ---------- 7. 头部浮岛 ---------- */
.bd-header{
  position:sticky;
  top:0;
  z-index:120;
  padding-block:10px;
  background:linear-gradient(180deg,rgba(244,239,230,.96),rgba(244,239,230,.78) 62%,rgba(244,239,230,0));
  transition:padding .28s ease,background-color .28s ease;
}
.bd-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.8vw,26px);
  padding-block:8px;
  padding-inline:clamp(12px,1.6vw,20px);
  border:1px solid rgba(201,183,159,.7);
  border-radius:var(--bd-r-pill);
  background:rgba(251,248,242,.72);
  transition:max-width .34s cubic-bezier(.2,.7,.3,1),
             background-color .3s ease,
             border-color .3s ease,
             box-shadow .3s ease,
             padding .3s ease;
}
.bd-header.is-condensed{padding-block:6px}
.bd-header.is-condensed .bd-header__inner{
  max-width:min(100% - 20px, 1010px);
  background:rgba(26,34,41,.95);
  border-color:rgba(255,154,31,.36);
  box-shadow:0 20px 42px -30px rgba(26,34,41,.95);
  padding-block:6px;
}
.bd-header__progress{
  position:absolute;
  left:clamp(14px,2vw,22px);
  right:clamp(14px,2vw,22px);
  bottom:-1px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--bd-amber),var(--bd-jade));
  transform:scaleX(var(--bd-progress));
  transform-origin:0 50%;
  opacity:0;
  transition:opacity .28s ease;
}
.bd-header.is-condensed .bd-header__progress{opacity:1}

/* 品牌 */
.bd-brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  min-width:0;
}
.bd-brand__mark{
  flex:0 0 auto;
  padding:5px 9px;
  border-radius:var(--bd-r-sm);
  border:1px solid rgba(255,154,31,.45);
  background:var(--bd-ink);
  color:var(--bd-amber);
  font-family:var(--bd-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  line-height:1.2;
  white-space:nowrap;
}
.bd-brand__text{display:flex;flex-direction:column;min-width:0}
.bd-brand__name{
  font-family:var(--bd-serif);
  font-weight:900;
  font-size:19px;
  line-height:1.25;
  letter-spacing:.03em;
  color:var(--bd-ink);
  white-space:nowrap;
}
.bd-brand__sub{
  font-family:var(--bd-mono);
  font-size:10.5px;
  letter-spacing:.12em;
  line-height:1.5;
  color:var(--bd-muted);
  white-space:nowrap;
}
.bd-header.is-condensed .bd-brand__name{color:var(--bd-paper)}
.bd-header.is-condensed .bd-brand__sub{color:#93A5B1}
.bd-header.is-condensed .bd-brand__mark{
  background:transparent;
  border-color:rgba(255,154,31,.7);
}

/* 导航 */
.bd-nav{margin-inline:auto;min-width:0}
.bd-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,.7vw,10px);
}
.bd-nav__item{position:relative}
.bd-nav__link{
  position:relative;
  display:inline-block;
  padding:9px 10px;
  border-radius:var(--bd-r-sm);
  font-family:var(--bd-sans);
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.03em;
  line-height:1.4;
  color:var(--bd-ink);
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.bd-nav__link::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:3px;
  height:2px;
  background:var(--bd-amber);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .18s ease;
}
.bd-nav__link:hover{color:var(--bd-ochre);background:rgba(201,183,159,.28)}
.bd-nav__link:hover::after,
.bd-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.bd-nav__link[aria-current="page"]{
  color:var(--bd-ochre);
  font-weight:700;
}
.bd-header.is-condensed .bd-nav__link{color:#E6DDD0}
.bd-header.is-condensed .bd-nav__link:hover{color:var(--bd-amber);background:rgba(255,154,31,.12)}
.bd-header.is-condensed .bd-nav__link[aria-current="page"]{color:var(--bd-amber)}

/* 右侧工具位 */
.bd-header__utils{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.bd-utility{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 13px;
  border-radius:var(--bd-r-pill);
  border:1px solid var(--bd-rule);
  background:rgba(255,255,255,.55);
  color:var(--bd-tea);
  font-family:var(--bd-mono);
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.4;
  white-space:nowrap;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,background-color .2s ease;
}
.bd-utility::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--bd-jade);
  box-shadow:0 0 0 3px rgba(62,124,116,.18);
}
.bd-utility:hover{
  border-color:var(--bd-amber);
  color:var(--bd-ochre);
  transform:translateY(-1px);
}
.bd-header.is-condensed .bd-utility{
  background:transparent;
  border-color:rgba(255,154,31,.6);
  color:var(--bd-amber);
}

/* 移动端按钮 */
.bd-nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 13px;
  border-radius:var(--bd-r-pill);
  border:1px solid var(--bd-rule);
  color:var(--bd-ink);
  font-family:var(--bd-mono);
  font-size:12px;
  letter-spacing:.1em;
  line-height:1.4;
  transition:border-color .2s ease,color .2s ease;
}
.bd-nav-toggle__bars{display:grid;gap:3px;width:16px}
.bd-nav-toggle__bars i{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s ease,opacity .2s ease;
}
.bd-nav-toggle__text{white-space:nowrap}
.bd-header[data-open] .bd-nav-toggle{
  border-color:var(--bd-amber);
  color:var(--bd-amber);
}
.bd-header[data-open] .bd-nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.bd-header[data-open] .bd-nav-toggle__bars i:nth-child(2){opacity:0}
.bd-header[data-open] .bd-nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- 8. 通用按钮 ---------- */
.bd-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border-radius:var(--bd-r-sm);
  border:1px solid var(--bd-ink);
  background:var(--bd-ink);
  color:var(--bd-paper);
  font-family:var(--bd-sans);
  font-size:15px;
  font-weight:600;
  letter-spacing:.03em;
  line-height:1.4;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.bd-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 24px -18px rgba(26,34,41,.95);
}
.bd-btn--ochre{background:var(--bd-ochre);border-color:var(--bd-ochre);color:#FAF1E6}
.bd-btn--ochre:hover{background:var(--bd-ochre-2);border-color:var(--bd-ochre-2)}
.bd-btn--ghost{
  background:transparent;
  color:var(--bd-ink);
  border-color:var(--bd-rule);
}
.bd-btn--ghost:hover{border-color:var(--bd-amber);color:var(--bd-ochre)}
.bd-btn--quiet{
  background:transparent;
  border-color:transparent;
  color:var(--bd-tea);
  padding-inline:6px;
  text-decoration:underline;
  text-underline-offset:5px;
  text-decoration-color:var(--bd-rule);
}
.bd-btn--quiet:hover{color:var(--bd-ochre);text-decoration-color:var(--bd-amber);box-shadow:none}

/* ---------- 9. 面包屑 ---------- */
.bd-breadcrumb{
  padding-block:14px;
  font-size:13px;
  line-height:1.7;
  color:var(--bd-muted);
}
.bd-breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.bd-breadcrumb li{display:flex;align-items:center;gap:8px}
.bd-breadcrumb li + li::before{
  content:"›";
  color:var(--bd-rule);
  font-size:15px;
  line-height:1;
}
.bd-breadcrumb a{
  color:var(--bd-tea);
  border-bottom:1px solid rgba(107,58,36,.28);
  transition:color .2s ease,border-color .2s ease;
}
.bd-breadcrumb a:hover{color:var(--bd-ochre);border-color:var(--bd-amber)}
.bd-breadcrumb [aria-current="page"]{color:var(--bd-ink);font-weight:600}

/* ---------- 10. 标题组与分区 ---------- */
.bd-page-head{padding-block:clamp(24px,4vw,52px) clamp(14px,2.4vw,26px)}
.bd-page-head__title{
  font-family:var(--bd-serif);
  font-weight:900;
  font-size:clamp(30px,5vw,52px);
  line-height:1.16;
  letter-spacing:-.01em;
  color:var(--bd-ink);
}
.bd-page-head__lead{
  margin-top:16px;
  max-width:62ch;
  font-size:16px;
  line-height:1.9;
  color:var(--bd-body);
}
.bd-page-head__meta{
  margin-top:18px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 14px;
}

.bd-section{padding-block:clamp(30px,5vw,64px)}
.bd-section--paper{background:var(--bd-paper-2)}
.bd-section--tight{padding-block:clamp(20px,3vw,34px)}

.bd-section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 18px;
  padding-bottom:14px;
  margin-bottom:clamp(18px,3vw,30px);
  border-bottom:1px solid var(--bd-rule);
}
.bd-section__title{
  font-family:var(--bd-serif);
  font-weight:900;
  font-size:clamp(21px,3vw,31px);
  line-height:1.32;
  color:var(--bd-ink);
}
.bd-section__hint{
  margin-left:auto;
  font-family:var(--bd-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--bd-muted);
}

.bd-eyebrow{
  display:inline-block;
  font-family:var(--bd-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--bd-muted);
}
.bd-rule{
  height:1px;
  border:0;
  background:var(--bd-rule);
  margin-block:clamp(22px,4vw,42px);
}

/* ---------- 11. 正文容器 ---------- */
.bd-prose{
  max-width:68ch;
  font-size:15.5px;
  line-height:1.9;
  color:var(--bd-body);
}
.bd-prose > * + *{margin-top:1.05em}
.bd-prose h2{
  font-family:var(--bd-serif);
  font-weight:900;
  font-size:clamp(21px,3vw,29px);
  line-height:1.35;
  color:var(--bd-ink);
  margin-top:2em;
}
.bd-prose h3{
  font-family:var(--bd-serif);
  font-weight:900;
  font-size:19px;
  color:var(--bd-ink);
  margin-top:1.6em;
}
.bd-prose strong{color:var(--bd-ochre);font-weight:700}
.bd-prose a{
  color:var(--bd-tea);
  border-bottom:1px solid var(--bd-amber);
}
.bd-prose a:hover{color:var(--bd-ochre)}
.bd-prose ul{display:grid;gap:.5em}
.bd-prose ul li{position:relative;padding-left:20px}
.bd-prose ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.86em;
  width:8px;height:1px;
  background:var(--bd-ochre);
}
.bd-prose blockquote{
  border-left:3px solid var(--bd-ochre);
  padding:6px 0 6px 18px;
  color:var(--bd-tea);
  font-family:var(--bd-serif);
  font-size:16.5px;
  line-height:1.8;
}

/* ---------- 12. 栅格 ---------- */
.bd-grid{display:grid;gap:clamp(18px,2.4vw,30px)}
.bd-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.bd-grid--asym{grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr)}
.bd-grid--rail{grid-template-columns:minmax(190px,230px) minmax(0,1fr);gap:clamp(20px,3vw,46px)}
.bd-rail{position:sticky;top:104px;align-self:start}

/* ---------- 13. 纸层、面板、卡片 ---------- */
.bd-panel{
  background:var(--bd-paper-3);
  border:1px solid var(--bd-rule);
  border-radius:var(--bd-r-md);
  padding:clamp(18px,2.6vw,28px);
  box-shadow:var(--bd-shadow);
}
.bd-panel--ink{
  background:var(--bd-ink);
  border-color:#3B4B59;
  color:var(--bd-paper);
}
.bd-panel--ink h2,.bd-panel--ink h3{color:var(--bd-paper)}
.bd-panel--flush{
  background:transparent;
  border:0;
  box-shadow:none;
  padding:0;
}

.bd-layer{position:relative;isolation:isolate}
.bd-layer::before{
  content:"";
  position:absolute;
  inset:7px -7px -7px 7px;
  z-index:-1;
  border:1px solid var(--bd-rule);
  border-radius:var(--bd-r-md);
  background:var(--bd-paper-2);
}

.bd-card{
  display:block;
  background:var(--bd-paper-3);
  border:1px solid var(--bd-rule);
  border-radius:var(--bd-r-md);
  padding:20px 20px 22px;
  box-shadow:var(--bd-shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.bd-card:hover{
  transform:translateY(-2px);
  border-color:var(--bd-amber);
  box-shadow:0 1px 0 rgba(201,183,159,.5),0 20px 34px -26px rgba(26,34,41,.85);
}
.bd-card--offset{margin-top:clamp(12px,2vw,22px)}

/* ---------- 14. 标签、徽章、印章、状态 ---------- */
.bd-label{
  display:inline-block;
  padding:3px 9px;
  border:1px solid var(--bd-rule);
  border-left:3px solid var(--bd-ochre);
  border-radius:2px;
  background:var(--bd-paper-2);
  color:var(--bd-tea);
  font-family:var(--bd-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  line-height:1.7;
  white-space:nowrap;
}
.bd-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 11px;
  border-radius:var(--bd-r-pill);
  border:1px solid rgba(255,154,31,.4);
  background:var(--bd-ink);
  color:var(--bd-amber);
  font-family:var(--bd-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  line-height:1.7;
  white-space:nowrap;
}
.bd-badge--ochre{
  background:var(--bd-ochre);
  border-color:var(--bd-ochre-2);
  color:#FDEFE2;
}
.bd-badge--ghost{
  background:transparent;
  border-color:var(--bd-rule);
  color:var(--bd-tea);
}
.bd-stamp{
  display:inline-grid;
  place-items:center;
  width:64px;height:64px;
  border-radius:50%;
  border:2px solid var(--bd-ochre);
  color:var(--bd-ochre);
  font-family:var(--bd-mono);
  font-size:12px;
  line-height:1.2;
  letter-spacing:.04em;
  text-align:center;
  box-shadow:inset 0 0 0 3px var(--bd-paper),inset 0 0 0 4px rgba(140,59,34,.32);
}
.bd-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  line-height:1.6;
  color:var(--bd-muted);
}
.bd-status__dot{
  flex:0 0 auto;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--bd-jade);
  box-shadow:0 0 0 3px rgba(62,124,116,.18);
}
.bd-status--pending .bd-status__dot{
  background:var(--bd-amber);
  box-shadow:0 0 0 3px rgba(255,154,31,.2);
}
.bd-status--idle .bd-status__dot{
  background:var(--bd-rule);
  box-shadow:none;
}

/* ---------- 15. 台账行 ---------- */
.bd-ledger{border-top:1px solid var(--bd-rule)}
.bd-ledger__row{
  display:grid;
  grid-template-columns:100px minmax(0,1fr) auto;
  gap:8px 18px;
  align-items:baseline;
  padding:14px 6px;
  border-bottom:1px solid var(--bd-rule);
  transition:background-color .2s ease,padding-left .2s ease;
}
.bd-ledger__row:hover{background:var(--bd-paper-2);padding-left:14px}
.bd-ledger__no{
  font-family:var(--bd-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--bd-ochre);
}
.bd-ledger__title{
  font-size:15.5px;
  font-weight:500;
  color:var(--bd-ink);
  line-height:1.6;
}
.bd-ledger__meta{
  font-family:var(--bd-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--bd-muted);
  white-space:nowrap;
}

/* ---------- 16. 横向卷轴 ---------- */
.bd-scroller{
  display:flex;
  gap:clamp(14px,2vw,22px);
  overflow-x:auto;
  overflow-y:hidden;
  scroll-snap-type:x proximity;
  padding:8px 4px 24px;
  margin-inline:-4px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
  scrollbar-color:var(--bd-rule) transparent;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 20px,#000 calc(100% - 56px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 20px,#000 calc(100% - 56px),transparent 100%);
}
.bd-scroller > *{
  flex:0 0 auto;
  scroll-snap-align:start;
}
.bd-scroller::-webkit-scrollbar{height:6px}
.bd-scroller::-webkit-scrollbar-track{background:transparent}
.bd-scroller::-webkit-scrollbar-thumb{background:var(--bd-rule);border-radius:3px}

/* ---------- 17. 标签页 ---------- */
.bd-tabs{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  gap:2px;
  margin-bottom:24px;
  border-bottom:1px solid var(--bd-rule);
}
.bd-tabs__btn{
  position:relative;
  z-index:1;
  padding:11px 16px;
  border-radius:var(--bd-r-sm) var(--bd-r-sm) 0 0;
  color:var(--bd-muted);
  font-family:var(--bd-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  line-height:1.5;
  white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.bd-tabs__btn:hover{color:var(--bd-tea);background:rgba(201,183,159,.2)}
.bd-tabs__btn[aria-selected="true"]{color:var(--bd-ochre)}
.bd-tabs__ink{
  position:absolute;
  left:0;bottom:-1px;
  height:2px;
  width:0;
  background:var(--bd-amber);
  transform:translateX(0);
  transition:transform .18s ease,width .18s ease;
  pointer-events:none;
}
.bd-tabpanel{animation:bd-fadein .22s ease both}
@keyframes bd-fadein{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}

/* ---------- 18. 图片容器 ---------- */
.bd-figure{margin:0;position:relative}
.bd-figure__frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--bd-rule);
  border-radius:var(--bd-r-md);
  background:
    linear-gradient(140deg,var(--bd-paper-2) 0%,#DCD0BC 100%);
}
.bd-figure__frame > img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.82) contrast(1.03) brightness(.99);
}
.bd-figure--wide .bd-figure__frame{aspect-ratio:16/9}
.bd-figure--tall .bd-figure__frame{aspect-ratio:3/4}
.bd-figure--square .bd-figure__frame{aspect-ratio:1/1}
.bd-figure__cap{
  margin-top:10px;
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:12.5px;
  line-height:1.75;
  color:var(--bd-muted);
}
.bd-figure__cap::before{
  content:"";
  flex:0 0 auto;
  width:16px;height:1px;
  background:var(--bd-ochre);
  transform:translateY(-4px);
}
.bd-figure__tag{
  position:absolute;
  top:10px;left:10px;
  z-index:2;
}

/* ---------- 19. 显现动效 ---------- */
.bd-reveal{opacity:0;transform:translateY(14px)}
.bd-reveal.is-in{
  opacity:1;
  transform:none;
  transition:opacity .5s ease,transform .55s cubic-bezier(.2,.7,.3,1);
}

/* ---------- 20. 页脚 ---------- */
.bd-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  background:var(--bd-tea);
  color:#EFE6DA;
}
.bd-footer__top{padding-block:clamp(36px,5vw,62px)}
.bd-footer__grid{
  display:grid;
  grid-template-columns:minmax(240px,1.7fr) repeat(3,minmax(120px,1fr));
  gap:clamp(22px,3vw,44px);
  align-items:start;
}
.bd-footer__brand{min-width:0}
.bd-footer__wordmark{
  font-family:var(--bd-serif);
  font-weight:900;
  font-size:clamp(20px,2.4vw,25px);
  letter-spacing:.04em;
  line-height:1.3;
  color:#F8F3EA;
}
.bd-footer__note{
  margin-top:12px;
  max-width:38ch;
  font-size:14px;
  line-height:1.85;
  color:rgba(239,230,218,.78);
}
.bd-footer__stat{
  margin-top:16px;
  font-family:var(--bd-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--bd-amber);
}
.bd-footer__col{min-width:0}
.bd-footer__title{
  padding-bottom:10px;
  border-bottom:1px solid rgba(239,230,218,.24);
  font-family:var(--bd-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.16em;
  line-height:1.6;
  text-transform:uppercase;
  color:rgba(239,230,218,.6);
}
.bd-footer__list{
  margin-top:14px;
  display:grid;
  gap:10px;
}
.bd-footer__list a{
  display:inline-block;
  font-size:14.5px;
  line-height:1.6;
  color:rgba(239,230,218,.92);
  border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.bd-footer__list a:hover{color:var(--bd-amber);border-color:var(--bd-amber)}

.bd-footer__bar{
  background:var(--bd-ink-deep);
  padding-block:16px;
  border-top:1px solid rgba(255,154,31,.18);
}
.bd-footer__barInner{display:block}
.bd-contactline{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 30px;
}
.bd-contactline li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  line-height:1.7;
}
.bd-contactline__k{
  font-family:var(--bd-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(255,154,31,.82);
}
.bd-contactline__v{color:rgba(239,230,218,.8)}
.bd-copy{
  padding:3px 9px;
  border:1px dashed rgba(239,230,218,.38);
  border-radius:var(--bd-r-sm);
  color:#F4EFE6;
  font-family:var(--bd-mono);
  font-size:13px;
  letter-spacing:.04em;
  line-height:1.6;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.bd-copy:hover{border-color:var(--bd-amber);color:var(--bd-amber)}
.bd-copy[data-copied="true"]{
  border-style:solid;
  border-color:var(--bd-jade);
  color:var(--bd-jade-2);
  background:rgba(62,124,116,.16);
}

.bd-footer__base{
  background:var(--bd-ink-deep);
  border-top:1px solid rgba(201,183,159,.16);
  padding-block:14px;
}
.bd-footer__baseInner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(239,230,218,.6);
}
.bd-footer__legal{color:rgba(239,230,218,.72)}
.bd-footer__copy{margin-left:auto;font-family:var(--bd-mono);letter-spacing:.04em}
.bd-footer__issue{font-family:var(--bd-mono);letter-spacing:.04em;color:rgba(255,154,31,.75)}
.bd-footer__ruler{
  height:16px;
  background-image:
    repeating-linear-gradient(90deg,rgba(255,154,31,.55) 0 1px,transparent 1px 16px),
    repeating-linear-gradient(90deg,rgba(244,239,230,.3) 0 1px,transparent 1px 80px);
  background-repeat:repeat-x,repeat-x;
  background-size:100% 6px,100% 13px;
  background-position:left bottom,left bottom;
  opacity:.72;
}

/* ---------- 21. 回到顶部 ---------- */
.bd-top{
  position:fixed;
  right:clamp(16px,3vw,28px);
  bottom:clamp(18px,3vw,30px);
  z-index:130;
  width:46px;height:46px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid rgba(255,154,31,.42);
  background:var(--bd-ink);
  color:var(--bd-amber);
  font-family:var(--bd-mono);
  font-size:16px;
  line-height:1;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s,background-color .2s ease;
}
.bd-top.is-on{opacity:1;visibility:visible;transform:none}
.bd-top:hover{background:var(--bd-ochre);border-color:var(--bd-ochre);color:#FAF1E6}

/* ---------- 22. 响应式 · 平板 ---------- */
@media (max-width:1080px){
  .bd-footer__grid{grid-template-columns:minmax(200px,1.4fr) repeat(3,minmax(100px,1fr));gap:clamp(18px,2.6vw,30px)}
  .bd-nav__link{font-size:14px;padding:8px 8px}
  .bd-nav__link::after{left:8px;right:8px}
}

/* ---------- 23. 响应式 · 折叠导航 ---------- */
@media (max-width:960px){
  .bd-header__inner{
    border-radius:var(--bd-r-lg);
    gap:10px;
  }
  .bd-header.is-condensed .bd-header__inner{
    max-width:min(100% - 16px, 720px);
    border-radius:var(--bd-r-lg);
  }
  .bd-brand__sub{display:none}
  .bd-nav-toggle{display:inline-flex}
  .bd-utility{display:none}

  .bd-nav{
    position:absolute;
    top:calc(100% + 8px);
    left:var(--bd-gutter);
    right:var(--bd-gutter);
    margin:0;
    padding:10px;
    border:1px solid rgba(201,183,159,.28);
    border-radius:var(--bd-r-lg);
    background:rgba(26,34,41,.98);
    box-shadow:0 26px 50px -32px rgba(26,34,41,.95);
    max-height:min(68vh,440px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s;
  }
  .bd-header[data-open] .bd-nav{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .bd-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }
  .bd-nav__item{width:100%}
  .bd-nav__link{
    display:block;
    padding:12px 14px;
    border-radius:var(--bd-r-md);
    font-size:16px;
    color:#E6DDD0;
  }
  .bd-nav__link::after{display:none}
  .bd-nav__link:hover{background:rgba(255,154,31,.12);color:var(--bd-amber)}
  .bd-nav__link[aria-current="page"]{
    background:rgba(255,154,31,.16);
    color:var(--bd-amber);
  }

  .bd-grid--asym,
  .bd-grid--rail{grid-template-columns:minmax(0,1fr)}
  .bd-rail{position:static;top:auto}
}

/* ---------- 24. 响应式 · 手机 ---------- */
@media (max-width:760px){
  body{font-size:15.5px;line-height:1.85}
  .bd-ticker__meta{gap:8px;font-size:10.5px;letter-spacing:.08em}
  .bd-ticker__meta span:last-child{display:none}
  .bd-header{padding-block:8px}
  .bd-brand__name{font-size:17px}
  .bd-brand__mark{font-size:10.5px;padding:4px 7px}
  .bd-nav-toggle__text{display:none}
  .bd-nav-toggle{padding:8px 10px}

  .bd-footer__grid{
    grid-template-columns:minmax(0,1fr);
    gap:28px;
  }
  .bd-footer__note{max-width:none}
  .bd-contactline{flex-direction:column;align-items:flex-start;gap:10px}
  .bd-footer__baseInner{flex-direction:column;align-items:flex-start;gap:6px}
  .bd-footer__copy{margin-left:0}

  .bd-grid--2{grid-template-columns:minmax(0,1fr)}
  .bd-ledger__row{
    grid-template-columns:minmax(0,1fr);
    gap:4px;
    padding:14px 2px;
  }
  .bd-ledger__row:hover{padding-left:6px}
  .bd-ledger__meta{white-space:normal}
  .bd-page-head__title{font-size:clamp(27px,8vw,36px)}
  .bd-tabs__btn{padding:10px 12px;font-size:12px}
  .bd-layer::before{inset:5px -5px -5px 5px}
  .bd-stamp{width:56px;height:56px;font-size:11px}
}

/* ---------- 25. 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;
  }
  .bd-reveal{opacity:1;transform:none}
  .bd-card:hover{transform:none}
  .bd-btn:hover{transform:none}
  .bd-utility:hover{transform:none}
}