/* ============================================================
   BÀN CỜ VIỆT · 模板 1208 · bc- 设计系统
   摩卡棕 #7c4a21 / 焦糖 #d97706 / 奶咖 #f8f1e7（暖调杂志风）
   标题 Lora · 正文 Be Vietnam Pro
   ============================================================ */
:root{
  --bc-mocha:#7c4a21;
  --bc-mocha-deep:#4a2a10;
  --bc-caramel:#d97706;
  --bc-caramel-deep:#b45309;
  --bc-cream:#f8f1e7;
  --bc-cream-2:#f0e4d2;
  --bc-card:#fffdf9;
  --bc-ink:#3a2a1a;
  --bc-mute:#8a7460;
  --bc-line:#e3d3bc;
  --bc-radius:18px;
  --bc-shadow:0 16px 42px rgba(74,42,16,.12);
  --bc-font-head:"Lora","Be Vietnam Pro",Georgia,serif;
  --bc-font-body:"Be Vietnam Pro","Lora",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.bc-body{
  font-family:var(--bc-font-body);
  font-size:16px;line-height:1.75;
  color:var(--bc-ink);
  background:var(--bc-cream);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
strong,b{font-weight:700}
i{font-style:normal}
time{font-variant-numeric:tabular-nums}
::selection{background:var(--bc-caramel);color:#fff}

.bc-shell{max-width:1200px;margin:0 auto;padding:0 24px}
.bc-skip{
  position:fixed;top:-60px;left:16px;z-index:300;
  background:var(--bc-mocha);color:#fff;padding:10px 18px;border-radius:10px;
  transition:top .2s;font-weight:700;
}
.bc-skip:focus{top:12px}

/* ---------- Header ---------- */
.bc-header{position:sticky;top:0;z-index:150}
.bc-header-top{
  display:flex;align-items:center;gap:26px;
  background:var(--bc-cream);border-bottom:1px solid var(--bc-line);
  padding-top:14px;padding-bottom:14px;
}
.bc-brand{display:inline-flex;flex:none}
.bc-brand-img{width:212px;height:auto}
.bc-header-note{font-size:13px;color:var(--bc-mute)}
.bc-header-note b{color:var(--bc-caramel-deep)}
.bc-navbar{background:var(--bc-mocha);box-shadow:0 8px 22px rgba(74,42,16,.18)}
.bc-nav-list{display:flex;justify-content:center;flex-wrap:wrap}
.bc-nav-a{
  display:block;padding:13px 15px;
  font-weight:600;font-size:14px;color:#f3e4cd;
  transition:background .2s,color .2s;
}
.bc-nav-a:hover{background:rgba(255,255,255,.12);color:#fff}
.bc-nav-a.is-active{background:var(--bc-caramel);color:#fff}
.bc-burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:46px;height:46px;border-radius:12px;flex:none;margin-left:auto;
  border:1px solid var(--bc-line);background:var(--bc-card);
}
.bc-burger span{
  display:block;width:20px;height:2.4px;margin:0 auto;border-radius:2px;
  background:var(--bc-mocha);transition:transform .25s,opacity .2s;
}
.bc-burger.is-open span:nth-child(1){transform:translateY(7.4px) rotate(45deg)}
.bc-burger.is-open span:nth-child(2){opacity:0}
.bc-burger.is-open span:nth-child(3){transform:translateY(-7.4px) rotate(-45deg)}

/* ---------- Mega 菜单 ---------- */
.bc-mega{
  display:none;
  position:absolute;left:0;right:0;top:100%;z-index:160;
  background:var(--bc-card);border-bottom:1px solid var(--bc-line);
  box-shadow:0 30px 50px rgba(74,42,16,.16);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s,transform .22s,visibility .22s;
}
.bc-mega.is-open{opacity:1;visibility:visible;transform:none}
.bc-mega-in{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;padding-top:20px;padding-bottom:24px}
.bc-mega-list{display:grid;grid-template-columns:1fr 1fr;gap:4px;align-content:start}
.bc-mega-list a{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:12px;font-weight:600;font-size:15px;
  transition:background .2s,color .2s;
}
.bc-mega-list a:hover{background:var(--bc-cream);color:var(--bc-caramel-deep)}
.bc-mega-no{
  flex:none;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bc-cream-2);color:var(--bc-mocha);
  font-weight:800;font-size:12.5px;
}
.bc-mega-feat{
  border-left:1px dashed var(--bc-line);padding-left:24px;
  display:flex;flex-direction:column;gap:14px;
}
.bc-mega-feat-h{
  font-family:var(--bc-font-head);font-weight:700;font-size:15px;color:var(--bc-mocha);
  border-bottom:2px solid var(--bc-caramel);padding-bottom:8px;display:inline-block;
}
.bc-mega-card{display:flex;gap:12px;align-items:center}
.bc-mega-card img{flex:none;width:88px;height:66px;object-fit:cover;border-radius:10px}
.bc-mega-card span{display:flex;flex-direction:column;gap:4px;min-width:0}
.bc-mega-card i{font-size:11.5px;font-weight:700;color:var(--bc-caramel-deep)}
.bc-mega-card strong{
  font-size:13.5px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-mega-card:hover strong{color:var(--bc-caramel-deep)}

/* ---------- 按钮 ---------- */
.bc-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:999px;
  font-weight:700;font-size:15px;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.bc-btn:hover{transform:translateY(-2px)}
.bc-btn-caramel{background:var(--bc-caramel);color:#fff;box-shadow:0 10px 26px rgba(217,119,6,.32)}
.bc-btn-caramel:hover{background:var(--bc-caramel-deep)}
.bc-btn-line{border:1.6px solid var(--bc-mocha);color:var(--bc-mocha)}
.bc-btn-line:hover{background:var(--bc-mocha);color:#fff}
.bc-btn b{font-weight:800}

/* ---------- Hero ---------- */
.bc-hero{
  background:
    radial-gradient(700px 340px at 8% 0,rgba(217,119,6,.10),transparent 60%),
    var(--bc-cream);
  border-bottom:1px solid var(--bc-line);
}
.bc-hero-in{
  display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;
  padding-top:64px;padding-bottom:76px;
}
.bc-hero-media{position:relative}
.bc-hero-fig{
  border-radius:26px;overflow:hidden;position:relative;
  box-shadow:var(--bc-shadow);
}
.bc-hero-fig img{width:100%;aspect-ratio:10/8;object-fit:cover;transition:transform .5s}
.bc-hero-fig:hover img{transform:scale(1.04)}
.bc-hero-figcap{
  position:absolute;left:0;right:0;bottom:0;
  display:flex;flex-direction:column;gap:8px;
  padding:44px 24px 20px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(44,26,12,.88));
}
.bc-hero-figcap strong{
  font-family:var(--bc-font-head);font-weight:700;font-size:18px;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-note{
  position:absolute;top:-26px;right:-18px;width:210px;
  background:#fff8dd;border:1px solid #ecd88f;border-radius:6px;
  padding:26px 16px 14px;transform:rotate(3.5deg);
  box-shadow:0 12px 28px rgba(74,42,16,.18);
}
.bc-note-tape{
  position:absolute;top:-10px;left:50%;transform:translateX(-50%) rotate(-2deg);
  width:86px;height:22px;background:rgba(217,119,6,.35);border-radius:2px;
}
.bc-note-h{font-family:var(--bc-font-head);font-weight:700;font-size:14px;color:var(--bc-mocha)}
.bc-note-t{font-size:12.5px;color:#7a6748;margin-top:4px}
.bc-hero-kicker{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--bc-caramel-deep);
}
.bc-hero-kicker span{width:34px;height:3px;border-radius:2px;background:var(--bc-caramel)}
.bc-hero-title{
  font-family:var(--bc-font-head);font-weight:700;
  font-size:clamp(28px,3.6vw,42px);line-height:1.22;
  margin:18px 0;color:var(--bc-mocha-deep);
}
.bc-hero-desc{color:var(--bc-mute);font-size:16px;max-width:500px}
.bc-hero-acts{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 32px}
.bc-hero-stats{display:flex;gap:0;border-top:1px solid var(--bc-line);padding-top:22px}
.bc-hero-stats li{flex:1;display:flex;flex-direction:column}
.bc-hero-stats li+li{border-left:1px solid var(--bc-line);padding-left:24px;margin-left:24px}
.bc-hero-stats strong{font-family:var(--bc-font-head);font-weight:700;font-size:27px;color:var(--bc-caramel-deep)}
.bc-hero-stats span{font-size:12.5px;color:var(--bc-mute)}

/* ---------- 区块骨架 ---------- */
.bc-section{padding:80px 0}
.bc-section-tint{background:var(--bc-cream-2)}
.bc-head{margin-bottom:44px}
.bc-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.bc-head-center{text-align:center;max-width:680px;margin:0 auto 44px}
.bc-kicker{
  display:inline-block;margin-bottom:12px;padding:5px 14px;border-radius:999px;
  background:#f5e3c4;color:var(--bc-caramel-deep);
  font-weight:700;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
}
.bc-h2{
  font-family:var(--bc-font-head);font-weight:700;
  font-size:clamp(24px,3.2vw,34px);line-height:1.25;color:var(--bc-mocha-deep);
}
.bc-head-desc{margin-top:12px;color:var(--bc-mute);font-size:15.5px;max-width:640px}
.bc-head-center .bc-head-desc{margin-left:auto;margin-right:auto}
.bc-block-h{
  font-family:var(--bc-font-head);font-weight:700;font-size:21px;color:var(--bc-mocha-deep);
  padding-bottom:10px;border-bottom:2px solid var(--bc-caramel);margin-bottom:22px;
}

/* ---------- 栏目卡 ---------- */
.bc-catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.bc-cat{
  display:flex;height:100%;
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.bc-cat:hover{transform:translateY(-6px) rotate(-.6deg);box-shadow:var(--bc-shadow);border-color:var(--bc-caramel)}
.bc-cat-bar{flex:none;width:8px;background:var(--bc-caramel);transition:width .25s}
.bc-cat:hover .bc-cat-bar{width:12px}
.bc-cat-in{display:flex;flex-direction:column;gap:9px;padding:20px 18px;flex:1}
.bc-cat-top{display:flex;align-items:center;justify-content:space-between}
.bc-cat-no{font-family:var(--bc-font-head);font-weight:700;font-size:14px;color:var(--bc-caramel-deep)}
.bc-cat-arrow{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bc-cream);color:var(--bc-mocha);font-size:16px;font-weight:800;
  transition:background .2s,color .2s,transform .2s;
}
.bc-cat:hover .bc-cat-arrow{background:var(--bc-caramel);color:#fff;transform:translateX(4px)}
.bc-cat-name{font-family:var(--bc-font-head);font-weight:700;font-size:18.5px;color:var(--bc-mocha-deep)}
.bc-cat-desc{
  color:var(--bc-mute);font-size:13.5px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- Spotlight ---------- */
.bc-spot{display:flex;flex-direction:column;gap:20px}
.bc-spot-wide{
  border-radius:var(--bc-radius);overflow:hidden;
  background:var(--bc-card);border:1px solid var(--bc-line);box-shadow:var(--bc-shadow);
}
.bc-spot-wide a{display:grid;grid-template-columns:1.15fr .85fr;align-items:stretch}
.bc-spot-wide img{width:100%;height:100%;min-height:300px;object-fit:cover}
.bc-spot-wide-body{display:flex;flex-direction:column;gap:12px;padding:34px 32px}
.bc-spot-wide-body strong{
  font-family:var(--bc-font-head);font-weight:700;font-size:24px;line-height:1.35;color:var(--bc-mocha-deep);
}
.bc-spot-desc{color:var(--bc-mute);font-size:14.5px}
.bc-spot-meta{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:auto;font-size:13px;color:var(--bc-mute)}
.bc-more{font-weight:700;color:var(--bc-caramel-deep);font-size:13.5px;white-space:nowrap}
.bc-spot-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bc-spot-list a{
  display:flex;gap:14px;align-items:center;height:100%;
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  padding:14px;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.bc-spot-list a:hover{transform:translateY(-4px);box-shadow:var(--bc-shadow);border-color:var(--bc-caramel)}
.bc-spot-list img{flex:none;width:96px;height:80px;object-fit:cover;border-radius:12px}
.bc-spot-item-body{display:flex;flex-direction:column;gap:5px;min-width:0}
.bc-spot-item-cat{font-size:11.5px;font-weight:700;color:var(--bc-caramel-deep);text-transform:uppercase;letter-spacing:.06em}
.bc-spot-item-body strong{
  font-size:14px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-spot-item-body time{font-size:12px;color:var(--bc-mute)}

/* ---------- 杂志网格（最新文章） ---------- */
.bc-mag{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:stretch}
.bc-mag-tall{
  border-radius:var(--bc-radius);overflow:hidden;position:relative;
  box-shadow:var(--bc-shadow);min-height:460px;
}
.bc-mag-tall img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.bc-mag-tall:hover img{transform:scale(1.05)}
.bc-mag-tall-body{
  position:relative;display:flex;flex-direction:column;gap:10px;height:100%;justify-content:flex-end;
  padding:30px;color:#fff;
  background:linear-gradient(180deg,rgba(44,26,12,0) 34%,rgba(44,26,12,.9) 100%);
}
.bc-mag-tall-body strong{
  font-family:var(--bc-font-head);font-weight:700;font-size:22px;line-height:1.35;
}
.bc-mag-tall-body .bc-spot-desc{color:#efe0cb}
.bc-mag-tall-body .bc-spot-meta{color:#d9c4a5}
.bc-mag-side{display:flex;flex-direction:column;gap:14px}
.bc-mag-item{flex:1}
.bc-mag-item a{
  display:flex;gap:16px;align-items:center;height:100%;
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  padding:14px 16px;transition:border-color .25s,box-shadow .25s,transform .25s;
}
.bc-mag-item a:hover{border-color:var(--bc-caramel);box-shadow:var(--bc-shadow);transform:translateX(5px)}
.bc-mag-item-body{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}
.bc-mag-item-cat{font-size:11.5px;font-weight:700;color:var(--bc-caramel-deep);text-transform:uppercase;letter-spacing:.06em}
.bc-mag-item-body strong{
  font-size:14.5px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-mag-item-body time{font-size:12px;color:var(--bc-mute)}
.bc-mag-item img{flex:none;width:108px;height:82px;object-fit:cover;border-radius:12px}

/* ---------- FAQ ---------- */
.bc-faq-wrap{display:grid;grid-template-columns:360px 1fr;gap:44px;align-items:start}
.bc-faq-side{position:sticky;top:130px}
.bc-faq{display:flex;flex-direction:column;gap:12px}
.bc-faq-item{
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  overflow:hidden;transition:border-color .25s,box-shadow .25s;
}
.bc-faq-item[open]{border-color:var(--bc-caramel);box-shadow:var(--bc-shadow)}
.bc-faq-item summary{
  display:flex;align-items:center;gap:14px;cursor:pointer;list-style:none;
  padding:17px 20px;
}
.bc-faq-item summary::-webkit-details-marker{display:none}
.bc-faq-q{flex:1;font-family:var(--bc-font-head);font-weight:700;font-size:15.5px;line-height:1.5;color:var(--bc-mocha-deep)}
.bc-faq-ico{
  flex:none;position:relative;width:32px;height:32px;border-radius:50%;
  background:var(--bc-cream-2);
}
.bc-faq-ico::before,.bc-faq-ico::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--bc-caramel-deep);
  transform:translate(-50%,-50%);
}
.bc-faq-ico::before{width:13px;height:2.6px}
.bc-faq-ico::after{width:2.6px;height:13px;transition:transform .2s}
.bc-faq-item[open] .bc-faq-ico{background:var(--bc-caramel)}
.bc-faq-item[open] .bc-faq-ico::before,.bc-faq-item[open] .bc-faq-ico::after{background:#fff}
.bc-faq-item[open] .bc-faq-ico::after{transform:translate(-50%,-50%) scaleY(0)}
.bc-faq-a{padding:0 20px 20px;border-top:1px dashed var(--bc-line);color:var(--bc-mute);font-size:14.5px}
.bc-faq-a p{padding-top:16px}

/* ---------- About ---------- */
.bc-about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.bc-about-desc{margin:18px 0 22px;color:var(--bc-mute);font-size:15.5px}
.bc-about-points{display:flex;flex-direction:column;gap:12px;margin-bottom:30px}
.bc-about-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px}
.bc-about-points b{
  flex:none;width:26px;height:26px;border-radius:50%;margin-top:1px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#f5e3c4;color:var(--bc-caramel-deep);font-size:13px;
}
.bc-about-media{
  position:relative;border-radius:24px;overflow:hidden;
  border:8px solid var(--bc-card);box-shadow:var(--bc-shadow);transform:rotate(-1.4deg);
}
.bc-about-media img{width:100%;height:auto}
.bc-about-cap{
  position:absolute;left:0;right:0;bottom:0;padding:26px 22px 15px;
  color:#fff;font-size:13.5px;font-weight:600;
  background:linear-gradient(180deg,transparent,rgba(44,26,12,.88));
}

/* ---------- 内页 banner / 面包屑 ---------- */
.bc-ibanner{
  background:
    radial-gradient(600px 280px at 85% 0,rgba(217,119,6,.25),transparent 60%),
    linear-gradient(120deg,var(--bc-mocha-deep),var(--bc-mocha));
  color:#f8ecdc;
}
.bc-ibanner-in{padding:52px 24px 56px}
.bc-ibanner-kicker{
  font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#f0c98a;
}
.bc-ibanner-head{
  font-family:var(--bc-font-head);font-weight:700;font-size:clamp(26px,3.4vw,38px);
  margin:8px 0 10px;
}
.bc-ibanner-desc{max-width:640px;color:#e8d5b8;font-size:15px}
.bc-crumb{background:var(--bc-card);border-bottom:1px solid var(--bc-line)}
.bc-crumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding-top:13px;padding-bottom:13px;font-size:13.5px;color:var(--bc-mute);
}
.bc-crumb a:hover{color:var(--bc-caramel-deep)}
.bc-crumb-sep{color:#cbb693}
.bc-crumb-now{color:var(--bc-mocha-deep);font-weight:700}

/* ---------- 列表页 ---------- */
.bc-page{padding-top:52px}
.bc-page-head{max-width:760px;margin-bottom:40px}
.bc-page-h1{
  font-family:var(--bc-font-head);font-weight:700;font-size:clamp(26px,3.4vw,38px);
  margin-bottom:16px;color:var(--bc-mocha-deep);
}
.bc-page-desc{color:var(--bc-mute);font-size:15.5px}
.bc-page-acts{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.bc-list-wrap{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:start}
.bc-rows{display:flex;flex-direction:column;gap:16px}
.bc-row{
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.bc-row:hover{transform:translateX(6px);box-shadow:var(--bc-shadow);border-color:var(--bc-caramel)}
.bc-row-link{display:grid;grid-template-columns:230px 1fr 46px;gap:20px;align-items:center;padding:16px}
.bc-row-media{border-radius:12px;overflow:hidden;aspect-ratio:16/10}
.bc-row-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.bc-row:hover .bc-row-media img{transform:scale(1.06)}
.bc-row-body{display:flex;flex-direction:column;gap:7px;min-width:0}
.bc-row-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--bc-mute)}
.bc-row-meta i{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:#f5e3c4;color:var(--bc-caramel-deep);font-size:11.5px;font-weight:700;
}
.bc-row-title{
  font-family:var(--bc-font-head);font-weight:700;font-size:17.5px;line-height:1.4;color:var(--bc-mocha-deep);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-row-desc{
  color:var(--bc-mute);font-size:13.8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-row-go{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bc-cream);color:var(--bc-mocha);font-size:17px;font-weight:800;
  transition:background .2s,color .2s;
}
.bc-row:hover .bc-row-go{background:var(--bc-caramel);color:#fff}
.bc-pagi{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:38px}
.bc-pagi button{
  min-width:42px;height:42px;padding:0 14px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bc-card);border:1px solid var(--bc-line);
  font-weight:800;font-size:14px;color:var(--bc-ink);
  transition:background .2s,color .2s,border-color .2s;
}
.bc-pagi .is-on,.bc-pagi button:hover{background:var(--bc-caramel);color:#fff;border-color:var(--bc-caramel)}
.bc-pagi .is-off{opacity:.45;pointer-events:none}

/* ---------- 侧栏 ---------- */
.bc-side{display:flex;flex-direction:column;gap:24px}
.bc-side-box{
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  padding:24px;
}
.bc-side-h{
  font-family:var(--bc-font-head);font-weight:700;font-size:17px;color:var(--bc-mocha-deep);
  padding-bottom:10px;margin-bottom:16px;border-bottom:2px solid var(--bc-caramel);
  display:inline-block;
}
.bc-side-hot{display:flex;flex-direction:column;gap:14px}
.bc-side-hot a{display:flex;gap:12px;align-items:center}
.bc-side-hot img{flex:none;width:76px;height:58px;object-fit:cover;border-radius:10px}
.bc-side-hot-body{display:flex;flex-direction:column;gap:4px;min-width:0}
.bc-side-hot-body strong{
  font-size:13.5px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-side-hot-body time{font-size:12px;color:var(--bc-mute)}
.bc-side-hot a:hover strong{color:var(--bc-caramel-deep)}
.bc-side-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-weight:700;font-size:13.5px;color:var(--bc-caramel-deep);
}
.bc-side-more:hover{text-decoration:underline}
.bc-side-list{display:flex;flex-direction:column;gap:12px}
.bc-side-list a{display:flex;gap:12px;align-items:flex-start;font-size:13.8px;font-weight:600;line-height:1.5}
.bc-side-list a:hover{color:var(--bc-caramel-deep)}
.bc-side-num{
  flex:none;width:26px;height:26px;border-radius:8px;margin-top:1px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#f5e3c4;color:var(--bc-caramel-deep);
  font-weight:800;font-size:12.5px;
}
.bc-side-note{background:linear-gradient(140deg,var(--bc-mocha-deep),var(--bc-mocha));color:#f8ecdc;border-color:transparent}
.bc-side-note .bc-side-h{color:#fff;border-bottom-color:var(--bc-caramel)}
.bc-side-note p{font-size:14px;color:#e8d5b8;margin-bottom:18px}

/* ---------- 文章页 ---------- */
.bc-article-wrap{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:start}
.bc-article-h1{
  font-family:var(--bc-font-head);font-weight:700;
  font-size:clamp(24px,3.2vw,34px);line-height:1.3;margin-bottom:16px;color:var(--bc-mocha-deep);
}
.bc-article-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--bc-line);
  font-size:13.5px;color:var(--bc-mute);
}
.bc-chip{
  display:inline-block;padding:4px 13px;border-radius:999px;
  background:var(--bc-caramel);color:#fff;font-weight:700;font-size:12px;
}
.bc-meta-item b{color:var(--bc-ink)}
.bc-article-figure{border-radius:var(--bc-radius);overflow:hidden;margin-bottom:26px;box-shadow:var(--bc-shadow)}
.bc-article-body{font-size:16.5px;line-height:1.9;color:#4c3a28}
.bc-article-body h2{
  font-family:var(--bc-font-head);font-weight:700;font-size:23px;color:var(--bc-mocha-deep);
  margin:36px 0 14px;padding-bottom:8px;border-bottom:2px solid var(--bc-caramel);
}
.bc-article-body h3{
  font-family:var(--bc-font-head);font-weight:700;font-size:18px;color:var(--bc-mocha-deep);
  margin:26px 0 10px;
}
.bc-article-body p{margin:14px 0}
.bc-article-body ul,.bc-article-body ol{margin:14px 0 14px 22px;list-style:disc}
.bc-article-body ol{list-style:decimal}
.bc-article-body li{margin:6px 0}
.bc-article-body strong{color:var(--bc-mocha-deep)}
.bc-article-body a{color:var(--bc-caramel-deep);text-decoration:underline}
.bc-article-tags{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:30px;padding-top:20px;border-top:1px dashed var(--bc-line);
}
.bc-tag-label{font-size:13px;font-weight:700;color:var(--bc-mute)}
.bc-tag{
  padding:6px 15px;border-radius:999px;background:var(--bc-card);border:1px solid var(--bc-line);
  font-size:13px;font-weight:600;transition:border-color .2s,color .2s;
}
.bc-tag:hover{border-color:var(--bc-caramel);color:var(--bc-caramel-deep)}

/* ---------- 上一篇/下一篇 ---------- */
.bc-switcher{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
.bc-switcher-cell{
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  padding:20px;display:flex;flex-direction:column;gap:8px;
  transition:border-color .25s,box-shadow .25s;
}
.bc-switcher-cell:hover{border-color:var(--bc-caramel);box-shadow:var(--bc-shadow)}
.bc-switcher-next{text-align:right}
.bc-switcher-label{
  font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--bc-caramel-deep);
}
.bc-switcher-link{font-weight:700;font-size:14.5px;line-height:1.5}
.bc-switcher-link:hover{color:var(--bc-caramel-deep)}
.bc-switcher-empty{font-size:13.5px;color:var(--bc-mute)}
.bc-related{margin-top:48px}

/* ---------- 卡片网格 ---------- */
.bc-grid{display:grid;gap:20px}
.bc-grid-4{grid-template-columns:repeat(4,1fr)}
.bc-card{
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.bc-card:hover{transform:translateY(-6px);box-shadow:var(--bc-shadow);border-color:var(--bc-caramel)}
.bc-card-link{display:flex;flex-direction:column;height:100%}
.bc-card-media{position:relative;aspect-ratio:10/7;overflow:hidden}
.bc-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.bc-card:hover .bc-card-media img{transform:scale(1.07)}
.bc-card-media .bc-chip{position:absolute;left:12px;bottom:12px}
.bc-card-body{display:flex;flex-direction:column;gap:9px;padding:18px;flex:1}
.bc-card-title{
  font-family:var(--bc-font-head);font-weight:700;font-size:15.5px;line-height:1.45;color:var(--bc-mocha-deep);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-card-desc{
  color:var(--bc-mute);font-size:13.5px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--bc-mute);padding-top:8px;border-top:1px dashed var(--bc-line);
}

/* ---------- 其他栏目 ---------- */
.bc-other{margin-top:52px}
.bc-other-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.bc-other-list a{
  display:flex;align-items:center;gap:14px;
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:var(--bc-radius);
  padding:14px 18px;transition:border-color .25s,transform .25s;
}
.bc-other-list a:hover{border-color:var(--bc-caramel);transform:translateX(6px)}
.bc-other-no{font-family:var(--bc-font-head);font-weight:700;font-size:16px;color:var(--bc-caramel-deep)}
.bc-other-body{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.bc-other-body strong{font-family:var(--bc-font-head);font-weight:700;font-size:15px;color:var(--bc-mocha-deep)}
.bc-other-body>span{
  color:var(--bc-mute);font-size:12.8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.bc-other-go{color:var(--bc-caramel-deep);font-weight:800}

/* ---------- 友链 ---------- */
.bc-flink{background:var(--bc-cream-2);border-top:1px solid var(--bc-line);padding:56px 0}
.bc-flink-head{text-align:center;max-width:600px;margin:0 auto 30px}
.bc-flink-title{
  font-family:var(--bc-font-head);font-weight:700;font-size:24px;color:var(--bc-mocha-deep);margin-bottom:10px;
}
.bc-flink-note{color:var(--bc-mute);font-size:14px}
.bc-flink-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.bc-flink-chip{
  display:flex;align-items:center;gap:12px;
  background:var(--bc-card);border:1px solid var(--bc-line);border-radius:999px;
  padding:8px 20px 8px 8px;font-weight:700;font-size:14px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.bc-flink-chip:hover{transform:translateY(-4px);border-color:var(--bc-caramel);box-shadow:var(--bc-shadow)}
.bc-flink-logo{width:40px;height:40px;border-radius:50%;object-fit:cover}

/* ---------- 页脚 ---------- */
.bc-footer{
  background:linear-gradient(160deg,var(--bc-mocha-deep),#331c0a);
  color:#dcc3a2;padding:60px 0 0;
}
.bc-foot-top{
  display:flex;align-items:center;gap:34px;flex-wrap:wrap;
  padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);
}
.bc-foot-slogan{max-width:560px;font-size:14px;color:#c2a37e}
.bc-foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1.2fr;gap:44px;padding:40px 0}
.bc-foot-h{
  font-family:var(--bc-font-head);font-weight:700;font-size:16px;color:#fff;
  margin-bottom:18px;padding-bottom:10px;border-bottom:2px solid var(--bc-caramel);display:inline-block;
}
.bc-foot-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.bc-foot-list a{color:#dcc3a2;transition:color .2s,padding-left .2s}
.bc-foot-list a:hover{color:#f0c98a;padding-left:6px}
.bc-foot-cats{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px}
.bc-foot-info{display:flex;flex-direction:column;gap:14px;font-size:14px}
.bc-foot-info li{display:flex;flex-direction:column;gap:3px}
.bc-foot-key{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#a8875f}
.bc-foot-val{color:#f3e4cd}
.bc-foot-base{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-direction:column;gap:10px;font-size:13px;color:#a8875f;
}
.bc-foot-copy p{margin:0}
.bc-foot-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.bc-foot-sitemap{color:#f0c98a;font-weight:700}
.bc-foot-sitemap:hover{text-decoration:underline}

/* ---------- 回到顶部 ---------- */
.bc-top-btn{
  position:fixed;right:22px;bottom:22px;z-index:160;
  width:50px;height:50px;border-radius:14px;
  background:var(--bc-caramel);color:#fff;font-size:20px;font-weight:800;
  box-shadow:0 12px 30px rgba(217,119,6,.4);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s,transform .25s,visibility .25s,background .2s;
}
.bc-top-btn.is-on{opacity:1;visibility:visible;transform:none}
.bc-top-btn:hover{background:var(--bc-mocha)}

/* ---------- 404 ---------- */
.bc-404{
  min-height:62vh;display:flex;align-items:center;justify-content:center;text-align:center;
  padding:70px 24px;
}
.bc-404-no{
  font-family:var(--bc-font-head);font-weight:700;font-size:clamp(84px,16vw,150px);
  line-height:1;color:var(--bc-caramel);
}
.bc-404-title{
  font-family:var(--bc-font-head);font-weight:700;font-size:clamp(20px,3vw,28px);
  margin:14px 0 12px;color:var(--bc-mocha-deep);
}
.bc-404-desc{color:var(--bc-mute);font-size:15px;max-width:480px;margin:0 auto 30px}
.bc-404-acts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 揭示动画（JS 门控） ---------- */
html.bc-js .bc-reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
html.bc-js .bc-reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .bc-grid-4,.bc-catgrid{grid-template-columns:repeat(2,1fr)}
  .bc-hero-in{grid-template-columns:1fr;gap:60px}
  .bc-note{right:6px;top:-24px}
  .bc-spot-wide a{grid-template-columns:1fr}
  .bc-spot-wide img{min-height:240px}
  .bc-spot-list{grid-template-columns:1fr}
  .bc-mag{grid-template-columns:1fr}
  .bc-mag-tall{min-height:360px}
  .bc-list-wrap,.bc-article-wrap{grid-template-columns:1fr}
  .bc-side{display:grid;grid-template-columns:1fr 1fr;align-items:start}
  .bc-side-note{grid-column:1/-1}
}
@media (max-width:960px){
  .bc-nav{display:none}
  .bc-burger{display:flex}
  .bc-mega{display:block}
  .bc-header-note{display:none}
  .bc-faq-wrap{grid-template-columns:1fr}
  .bc-faq-side{position:static}
  .bc-about-wrap{grid-template-columns:1fr;gap:44px}
  .bc-foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:640px){
  .bc-section{padding:56px 0}
  .bc-shell{padding:0 18px}
  .bc-grid-4,.bc-catgrid{grid-template-columns:1fr}
  .bc-mega-in{grid-template-columns:1fr;gap:18px}
  .bc-mega-feat{border-left:0;padding-left:0;border-top:1px dashed var(--bc-line);padding-top:16px}
  .bc-mega-list{grid-template-columns:1fr}
  .bc-note{display:none}
  .bc-hero-stats{flex-direction:column;gap:12px}
  .bc-hero-stats li+li{border-left:0;padding-left:0;margin-left:0}
  .bc-side{grid-template-columns:1fr}
  .bc-switcher{grid-template-columns:1fr}
  .bc-switcher-next{text-align:left}
  .bc-other-list{grid-template-columns:1fr}
  .bc-foot-grid{grid-template-columns:1fr}
  .bc-row-link{grid-template-columns:1fr;padding:14px}
  .bc-row-media{display:none}
  .bc-row-go{display:none}
  .bc-flink-chip{font-size:13px;padding:6px 16px 6px 6px}
  .bc-flink-logo{width:34px;height:34px}
  .bc-brand-img{width:172px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  html.bc-js .bc-reveal{opacity:1;transform:none}
}