/* ===================================================================
   设计族覆盖层（Design Family）  规则 §十九
   body[data-family="B"] 杂志编辑：白底 / 宋体超大标题 / 无卡片无阴影 / 1px 细线 / 直角 / 宽版心
   仅覆盖视觉语言六组属性：版心宽度、字号体系、组件形态、圆角阴影、间距节奏、Hero 形态
   =================================================================== */

/* ------------------------------ 版心与底色 ------------------------------ */
body[data-family="B"]{background:#fff;color:#141414}
body[data-family="B"] .wrap{width:1320px;max-width:calc(100% - 48px)}

/* ------------------------------ 字体体系 ------------------------------ */
body[data-family="B"] h1,
body[data-family="B"] h2,
body[data-family="B"] h3,
body[data-family="B"] .n3-logo,
body[data-family="B"] .bm-title,
body[data-family="B"] .h2-sec-head h2,
body[data-family="B"] .h2-side-head,
body[data-family="B"] .a3-head h1{
  font-family:"Songti SC","SimSun","Noto Serif SC",Georgia,serif;
  font-weight:700;letter-spacing:-.5px;color:#0d0d0d;
}
body[data-family="B"]{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif}

/* ------------------------------ 导航（白底细线，超大 logo） ------------------------------ */
body[data-family="B"] .site-header.n3{border-bottom:1px solid #111;background:#fff}
body[data-family="B"] .n3-top{padding:26px 0 18px;border-bottom:0;grid-template-columns:1fr auto 1fr;align-items:center}
body[data-family="B"] .n3-logo{font-size:27px;letter-spacing:-.8px;border-bottom:0;max-width:none}
body[data-family="B"] .n3-tel{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:#666}
body[data-family="B"] .n3-tel-k{font-size:10px;letter-spacing:1.6px;color:#999;display:block;margin:0 0 2px}
body[data-family="B"] .n3-tel-v{font-size:13px;color:#111;letter-spacing:.5px}
body[data-family="B"] .n3-user{font-size:12px;gap:14px;color:#666}
body[data-family="B"] .n3-pub{background:#111;color:#fff;border-radius:0;padding:9px 20px;font-size:12.5px;letter-spacing:.5px}
body[data-family="B"] .n3-pub:hover{background:#c0392b;color:#fff}
body[data-family="B"] .n3-bar{background:#fff;border-top:1px solid #e6e6e6}
body[data-family="B"] .n3-bar-in{padding:0;height:56px}
body[data-family="B"] .n3-nav{gap:0;margin:0}
body[data-family="B"] .n3-nav-i a{font-size:14px;color:#111;padding:18px 22px;border-bottom:3px solid transparent;letter-spacing:.3px}
body[data-family="B"] .n3-nav-i a:hover{background:#f5f5f5}
body[data-family="B"] .n3-nav-i.on a{border-bottom-color:#c0392b;color:#c0392b;font-weight:600}
body[data-family="B"] .n3-search{border:1px solid #ddd;border-radius:0;height:34px;background:#fafafa}
body[data-family="B"] .n3-search button{background:#111;border-radius:0}

/* ------------------------------ Hero：文字墙（无背景图） ------------------------------ */
body[data-family="B"] .site-hero.fm-b{background:#fff;border-bottom:3px solid #111;margin-bottom:0;padding:0}
body[data-family="B"] .bm-in{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:64px;align-items:start;padding:66px 0 46px}
body[data-family="B"] .bm-kicker{font-family:ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:#888;margin:0 0 22px}
body[data-family="B"] .bm-title{font-size:52px;line-height:1.16;margin:0 0 22px;letter-spacing:-1.5px}
body[data-family="B"] .bm-slash{color:#c0392b;font-weight:300;margin:0 14px 0 10px}
body[data-family="B"] .bm-sub{font-size:15px;line-height:1.95;color:#555;max-width:640px;margin:0;padding-top:20px;border-top:1px solid #e0e0e0}
body[data-family="B"] .bm-r{border-left:1px solid #e0e0e0;padding-left:28px;padding-top:6px}
body[data-family="B"] .bm-meta{margin:0 0 22px;font-size:12.5px;line-height:1.7}
body[data-family="B"] .bm-meta dt{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:1.6px;color:#999;text-transform:uppercase;margin-bottom:3px}
body[data-family="B"] .bm-meta dd{margin:0 0 14px;color:#222;font-size:13px}
body[data-family="B"] .bm-btn{display:block;text-align:center;background:#111;color:#fff;padding:13px 0;font-size:13.5px;letter-spacing:1px;border-radius:0;margin-bottom:8px}
body[data-family="B"] .bm-btn:hover{background:#c0392b;color:#fff}
body[data-family="B"] .bm-btn-ghost{display:block;text-align:center;border:1px solid #111;color:#111;padding:12px 0;font-size:13px;border-radius:0}
body[data-family="B"] .bm-btn-ghost:hover{background:#111;color:#fff}

/* ------------------------------ 组件形态：去卡片、去阴影、只留细线 ------------------------------ */
body[data-family="B"] .h2-shell{display:grid;grid-template-columns:210px minmax(0,1fr);gap:52px;padding-top:44px}
body[data-family="B"] .h2-side{background:transparent;border:0;border-right:1px solid #e6e6e6;border-radius:0;padding:0 26px 0 0;position:static}
body[data-family="B"] .h2-side-head{font-size:13px;letter-spacing:3px;color:#999;text-transform:uppercase;font-family:ui-monospace,Menlo,monospace;font-weight:400;border:0;padding:0 0 12px;margin:0 0 6px;border-bottom:2px solid #111}
body[data-family="B"] .h2-cates li{border-bottom:1px solid #f0f0f0}
body[data-family="B"] .h2-cates a{padding:13px 0;font-size:14px;color:#222}
body[data-family="B"] .h2-cates a:hover{color:#c0392b;padding-left:4px}
body[data-family="B"] .h2-side-card,
body[data-family="B"] .h2-side-contact{background:transparent;border:0;border-top:1px solid #e6e6e6;border-radius:0;padding:20px 0 0;margin-top:22px}
body[data-family="B"] .h2-side-card h3,
body[data-family="B"] .h2-side-contact h3{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:1.8px;color:#999;text-transform:uppercase;margin:0 0 10px;font-weight:400}
body[data-family="B"] .h2-side-btn{background:#111;border-radius:0;color:#fff;display:block;text-align:center;padding:10px 0;font-size:12.5px}
body[data-family="B"] .h2-main{gap:0}
body[data-family="B"] .h2-intro{background:transparent;border:0;border-top:2px solid #111;border-radius:0;padding:26px 0 0;margin-bottom:34px}
body[data-family="B"] .h2-intro-txt h2{font-size:26px;border-left:0;padding-left:0;margin:0 0 12px}
body[data-family="B"] .h2-intro-txt p{font-size:14.5px;line-height:2;color:#444;margin:0 0 22px}
body[data-family="B"] .h2-intro-cates{grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid #e6e6e6}
body[data-family="B"] .h2-intro-cate{background:transparent;border:0;border-right:1px solid #e6e6e6;border-radius:0;padding:20px 22px 20px 0}
body[data-family="B"] .h2-intro-cate:last-child{border-right:0}
body[data-family="B"] .h2-intro-cate b{font-size:17px;font-family:"Songti SC",SimSun,serif}
body[data-family="B"] .h2-intro-cate:hover{background:#fafafa}
body[data-family="B"] .h2-strip{border:0;border-bottom:1px solid #e6e6e6;border-radius:0;background:transparent;padding:0;margin-bottom:32px}
body[data-family="B"] .h2-strip-item{border:0;border-right:1px solid #e6e6e6;border-radius:0;background:transparent;padding:16px 18px 16px 0}
body[data-family="B"] .h2-strip-item:last-child{border-right:0}
body[data-family="B"] .h2-strip-item b{font-size:13.5px;line-height:1.6}
body[data-family="B"] .h2-sec-head{border-bottom:2px solid #111;padding-bottom:12px;margin-bottom:0}
body[data-family="B"] .h2-sec-head h2{font-size:24px;margin:0}
body[data-family="B"] .h2-rows > li{border:0;border-bottom:1px solid #eee;border-radius:0;background:transparent;padding:20px 0;gap:26px}
body[data-family="B"] .h2-rows > li:hover{background:#fafafa}
body[data-family="B"] .h2-row-thumb{border-radius:0;width:200px;flex:0 0 200px}
body[data-family="B"] .h2-row-thumb img{border-radius:0;aspect-ratio:3/2;object-fit:cover}
body[data-family="B"] .h2-row-title{font-family:"Songti SC",SimSun,serif;font-size:18px;letter-spacing:-.3px;line-height:1.5}
body[data-family="B"] .h2-row-main p{font-size:13px;line-height:1.9;color:#666}
body[data-family="B"] .h2-about{border:0;border-top:2px solid #111;border-radius:0;background:transparent;padding:26px 0 0;margin-top:36px}
body[data-family="B"] .h2-about h2{font-size:24px}
body[data-family="B"] .h2-about p{font-size:14px;line-height:2;color:#444}

/* ------------------------------ 详情页（侧栏左，去卡片） ------------------------------ */
body[data-family="B"] .p3-layout{gap:48px;grid-template-columns:220px minmax(0,1fr);padding-bottom:20px}
body[data-family="B"] .p3-side{gap:0;position:static}
body[data-family="B"] .p3-card{background:transparent;border:0;border-top:2px solid #111;border-radius:0;padding:18px 0 0;margin-bottom:26px}
body[data-family="B"] .p3-card h3{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:1.8px;text-transform:uppercase;color:#999;font-weight:400;border:0;padding:0;margin:0 0 12px}
body[data-family="B"] .p3-card dt{font-size:11px;color:#999;letter-spacing:.5px}
body[data-family="B"] .p3-card dd{font-size:13px;color:#222;margin-bottom:10px}
body[data-family="B"] .p3-main h1{font-family:"Songti SC",SimSun,serif;font-size:34px;line-height:1.4;letter-spacing:-.8px;margin:0 0 14px}
body[data-family="B"] .p3-meta{border-top:1px solid #e6e6e6;border-bottom:1px solid #e6e6e6;padding:10px 0;font-family:ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:.8px;color:#888;gap:18px}
body[data-family="B"] .d-content{font-size:15px;line-height:2.05;color:#333}
body[data-family="B"] .d-content img{border-radius:0}
body[data-family="B"] .d-note{background:#fafafa;border-left:2px solid #111;border-radius:0;font-size:12.5px}

/* ------------------------------ 文章页（页头改为白底黑线大字） ------------------------------ */
body[data-family="B"] .a3-head{background:#fff;color:#111;border-bottom:3px solid #111;padding:52px 0 34px}
body[data-family="B"] .a3-kicker{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:2.4px;text-transform:uppercase;color:#999;border:0;padding:0;border-radius:0}
body[data-family="B"] .a3-head h1{color:#0d0d0d;font-size:40px;letter-spacing:-1px;line-height:1.3}
body[data-family="B"] .a3-sub{color:#777;font-size:12.5px;font-family:ui-monospace,Menlo,monospace;letter-spacing:.6px}
body[data-family="B"] .a3-sec{background:transparent;border:0;border-radius:0;padding:0}
body[data-family="B"] .a3-p{font-size:15px;line-height:2.1;color:#333}
body[data-family="B"] .a3-h{border-top:1px solid #e6e6e6;padding-top:22px;margin:30px 0 14px}
body[data-family="B"] .a3-bar{background:#c0392b;width:3px;height:20px}
body[data-family="B"] .a3-ht{font-family:"Songti SC",SimSun,serif;font-size:21px;letter-spacing:-.3px}
body[data-family="B"] .a3-foot-note{background:#fafafa;border-left:2px solid #111;border-radius:0;font-size:12.5px;line-height:2}
body[data-family="B"] .a3-plan{background:transparent;border:1px solid #e0e0e0;border-radius:0}
body[data-family="B"] .a3-plans{gap:0}
body[data-family="B"] .a3-plan-row{border-bottom:1px solid #f0f0f0;font-size:12.5px}
body[data-family="B"] .a3-plan-k{font-family:ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:.6px}

/* ------------------------------ 列表页（去卡片，直角大图 + 细线） ------------------------------ */
body[data-family="B"] .l3-grid{gap:0;border-top:1px solid #e6e6e6}
body[data-family="B"] .l3-card{background:transparent;border:0;border-bottom:1px solid #e6e6e6;border-radius:0;padding:22px 0}
body[data-family="B"] .l3-card img,
body[data-family="B"] .l3-thumb,
body[data-family="B"] .l3-thumb img{border-radius:0}
body[data-family="B"] .l3-title{font-family:"Songti SC",SimSun,serif;font-size:16.5px;line-height:1.55}
body[data-family="B"] .l3-card:hover{background:#fafafa}
body[data-family="B"] .page-head h1,
body[data-family="B"] .list-head h1{font-family:"Songti SC",SimSun,serif;font-size:32px;letter-spacing:-.8px}

/* ------------------------------ 页脚：白底黑字细线（不用深色） ------------------------------ */
body[data-family="B"] .site-footer.f2{background:#fff;color:#333;border-top:3px solid #111;margin-top:56px}
body[data-family="B"] .f2-grid{padding:44px 0 30px;gap:48px}
body[data-family="B"] .f2-h{font-family:ui-monospace,Menlo,monospace;font-size:10px;letter-spacing:2px;text-transform:uppercase;color:#999;font-weight:400;margin-bottom:14px}
body[data-family="B"] .f2-about h4{font-family:"Songti SC",SimSun,serif;font-size:20px;color:#111;letter-spacing:-.4px}
body[data-family="B"] .f2-intro{color:#666;font-size:12.5px;line-height:1.95}
body[data-family="B"] .f2-li a{color:#333;font-size:13px;line-height:2.2}
body[data-family="B"] .f2-li a:before{color:#c0392b;font-size:10px}
body[data-family="B"] .f2-li a:hover{color:#c0392b}
body[data-family="B"] .f2-dl dt{color:#999;font-size:10.5px;letter-spacing:.8px;text-transform:uppercase}
body[data-family="B"] .f2-dl dd{color:#333;font-size:12.5px}
body[data-family="B"] .f2-bottom{border-top:1px solid #e6e6e6;background:#fff;color:#888;font-size:11.5px}
body[data-family="B"] .f2-icp-no{color:#333}
body[data-family="B"] .f2-icp-name{color:#666}

/* ------------------------------ 登录/注册/用户中心（去卡片圆角） ------------------------------ */
body[data-family="B"] .auth-card,
body[data-family="B"] .uc-card,
body[data-family="B"] .form-card{background:#fff;border:1px solid #e0e0e0;border-radius:0;box-shadow:none}
body[data-family="B"] .btn,
body[data-family="B"] button[type="submit"]{border-radius:0}
body[data-family="B"] input[type="text"],
body[data-family="B"] input[type="password"],
body[data-family="B"] textarea{border-radius:0;border-color:#ddd}

/* ------------------------------ 窄屏收敛 ------------------------------ */
@media (max-width:980px){
  body[data-family="B"] .n3-top{grid-template-columns:1fr;text-align:left;gap:10px;padding:18px 0 12px;align-items:start}
  body[data-family="B"] .n3-logo{font-size:20px;line-height:1.3;letter-spacing:-.4px}
  body[data-family="B"] .n3-user{justify-content:flex-start;flex-wrap:wrap;gap:12px}
  body[data-family="B"] .n3-tel-k{display:none}
  body[data-family="B"] .bm-in{grid-template-columns:1fr;gap:26px;padding:40px 0 32px}
  body[data-family="B"] .bm-title{font-size:34px;letter-spacing:-1px}
  body[data-family="B"] .bm-r{border-left:0;border-top:1px solid #e0e0e0;padding-left:0;padding-top:20px}
  body[data-family="B"] .h2-shell{grid-template-columns:1fr;gap:26px}
  body[data-family="B"] .h2-side{border-right:0;border-bottom:1px solid #e6e6e6;padding:0 0 18px}
  body[data-family="B"] .p3-layout{grid-template-columns:1fr;gap:26px}
  body[data-family="B"] .h2-intro-cates{grid-template-columns:1fr}
  body[data-family="B"] .h2-intro-cate{border-right:0;border-bottom:1px solid #e6e6e6;padding:14px 0}
}
@media (max-width:640px){
  body[data-family="B"] .bm-title{font-size:26px;letter-spacing:-.6px}
  body[data-family="B"] .n3-logo{font-size:18px}
  body[data-family="B"] .h2-row-thumb{width:110px;flex:0 0 110px}
  body[data-family="B"] .h2-row-title{font-size:15px}
  body[data-family="B"] .a3-head h1{font-size:24px}
  body[data-family="B"] .p3-main h1{font-size:23px}
}

/* ------------------------------ 族B：把品牌主色收敛为黑白（红仅作强调） ------------------------------ */
body[data-family="B"]{
  --primary:#111111;--primary-d:#000000;--c-primary:#111111;--c-primary-d:#000000;
  --c-soft:#f7f7f7;--bg:#ffffff;--line:#e6e6e6;--muted:#888888;
}
body[data-family="B"] .h2-side-head{background:transparent !important;color:#999999 !important}
body[data-family="B"] .h2-sec-head h2{color:#111111}
body[data-family="B"] .h2-sec-head a{color:#c0392b}
body[data-family="B"] .h2-side-btn{background:#111111 !important;color:#fff !important}
body[data-family="B"] .h2-cate-all a{color:#111111;font-weight:600}
body[data-family="B"] .h2-side-contact p{color:#555;font-size:12.5px}
body[data-family="B"] .p3-back{color:#111;border:1px solid #111;border-radius:0;padding:8px 0;display:block;text-align:center;font-size:12.5px}
body[data-family="B"] .p3-back:hover{background:#111;color:#fff}
body[data-family="B"] .h2-intro-cate span{color:#999;font-size:11.5px;letter-spacing:.5px}
body[data-family="B"] .h2-about h2{border:0}
body[data-family="B"] .site-hero-btn,body[data-family="B"] .site-hero-ghost{border-radius:0}
body[data-family="B"] .pager a,body[data-family="B"] .pager span{border-radius:0}

/* ------------------------------ 族B：详情/列表细节收敛（去残留卡片、统一图比例） ------------------------------ */
body[data-family="B"] .p3-main{border:0;border-radius:0;background:transparent;padding:0}
body[data-family="B"] .d-content img{border-radius:0;display:block;margin:0 auto 6px;max-width:100%}
body[data-family="B"] .l3-grid{gap:0 26px;border-top:0}
body[data-family="B"] .l3-cell{border-bottom:1px solid #e6e6e6;border-right:0;border-radius:0;background:transparent;padding:0 0 20px;margin-bottom:22px}
body[data-family="B"] .l3-img{aspect-ratio:4/3;overflow:hidden;display:block;background:#f4f4f4}
body[data-family="B"] .l3-img img{width:100%;height:100%;object-fit:cover;border-radius:0}
body[data-family="B"] .l3-t{font-family:"Songti SC",SimSun,serif;font-size:15.5px;line-height:1.6;margin-top:12px;letter-spacing:-.2px}
body[data-family="B"] .l3-m{font-family:ui-monospace,Menlo,monospace;font-size:10.5px;letter-spacing:.6px;color:#999;margin-top:6px}
body[data-family="B"] .l3-bar{border-bottom:2px solid #111;padding-bottom:10px;margin-bottom:24px}
body[data-family="B"] .l3-tools a{color:#777;font-size:12px;letter-spacing:.5px}
body[data-family="B"] .l3-tools a.on{color:#c0392b;font-weight:600}
body[data-family="B"] .l3-badge{background:#c0392b;border-radius:0;font-size:10px;letter-spacing:1px}
body[data-family="B"] .pager a,body[data-family="B"] .pager span{border:1px solid #ddd;border-radius:0}
body[data-family="B"] .pager .on{background:#111;color:#fff;border-color:#111}