/* ============================================================
   可司威波 · BNC 卡口同轴专线 —— 明亮商业科技风
   设计令牌：hue 190 科技青蓝 / layout-hero / font-f1 / style-float
   ============================================================ */
:root{
  --hue: 190; --sat: 62%;
  --color-primary: hsl(var(--hue) 74% 30%);
  --color-primary-strong: hsl(var(--hue) 78% 22%);
  --color-accent: hsl(38 92% 50%);
  --bg: hsl(var(--hue) 40% 98%);
  --fg: hsl(var(--hue) 30% 14%);
  --card: #ffffff;
  --muted: hsl(var(--hue) 14% 38%);
  --border: hsl(var(--hue) 28% 88%);
  --radius: 14px;
  --shadow: 0 8px 24px rgba(10, 60, 70, .10);
  --content-maxw: 1140px;
  --font-heading: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-code: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font-family:var(--font-body); font-size:16px; line-height:1.75; letter-spacing:.02em;
}
img{max-width:100%}
a{color:var(--color-primary); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--content-maxw); margin:0 auto; padding:0 20px}
.muted{color:var(--muted)}
body.card-modal-open{overflow:hidden}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(255,255,255,.92); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex; align-items:center; gap:18px; height:64px}
.brand{flex:0 0 auto; display:flex}
.brand img{display:block}
.site-nav{margin-left:auto}
.site-nav>ul{display:flex; gap:4px; list-style:none; margin:0; padding:0}
.site-nav>ul>li{position:relative}
.site-nav>ul>li>a{display:block; padding:8px 14px; border-radius:8px; color:var(--fg); font-weight:600}
.site-nav>ul>li>a:hover{background:hsl(var(--hue) 40% 94%); text-decoration:none; color:var(--color-primary)}
.site-nav .sub{
  position:absolute; top:100%; left:8px; min-width:180px; display:none;
  background:var(--card); border:1px solid var(--border); border-radius:10px;
  box-shadow:var(--shadow); list-style:none; margin:0; padding:6px;
}
.site-nav li:hover>.sub, .site-nav li:focus-within>.sub{display:block}
.site-nav .sub a{display:block; padding:8px 12px; border-radius:8px; color:var(--fg); font-size:14px}
.site-nav .sub a:hover{background:hsl(var(--hue) 40% 95%); text-decoration:none}
.nav-toggle{display:none; margin-left:auto; background:none; border:1px solid var(--border); border-radius:8px; padding:8px; cursor:pointer}
.nav-toggle span{display:block; width:18px; height:2px; background:var(--fg); margin:3px 0}
.header-card-btn{
  flex:0 0 auto; border:1.5px solid var(--color-primary); color:var(--color-primary);
  background:#fff; border-radius:999px; padding:7px 16px; font-weight:700; font-size:14px; cursor:pointer;
}
.header-card-btn:hover{background:var(--color-primary); color:#fff}

/* ---------- HERO ---------- */
.hero{padding:72px 0 64px; background:
  radial-gradient(900px 320px at 85% -10%, hsl(var(--hue) 70% 88% / .8), transparent 60%),
  linear-gradient(180deg, hsl(var(--hue) 46% 96%), var(--bg));}
.hero-inner{display:grid; grid-template-columns:1.15fr .85fr; gap:48px; align-items:center}
.hero-kicker{color:var(--color-primary); font-weight:700; letter-spacing:.12em; margin:0 0 10px}
.hero h1{font-family:var(--font-heading); font-size:40px; line-height:1.28; margin:0 0 16px; color:var(--color-primary-strong)}
.hero-sub{font-size:17px; color:var(--muted); margin:0 0 24px; max-width:56ch}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-bottom:22px}
.hero-points{list-style:none; margin:0; padding:0; display:flex; gap:20px; flex-wrap:wrap; font-size:14px; color:var(--muted)}
.hero-points li::before{content:"◆ "; color:var(--color-accent)}
.hero-visual{display:flex; flex-direction:column; align-items:center; gap:18px}
.bnc-glyph{position:relative; width:240px; height:240px}
.bnc-glyph .ring{position:absolute; border-radius:50%; border:6px solid var(--color-primary)}
.bnc-glyph .r1{inset:0}
.bnc-glyph .r2{inset:52px; opacity:.5}
.bnc-glyph .core{position:absolute; inset:88px; border-radius:50%; background:var(--color-primary)}
.bnc-glyph .lug{position:absolute; width:34px; height:12px; border-radius:6px; background:var(--color-accent)}
.bnc-glyph .lug-a{top:36px; right:6px; transform:rotate(30deg)}
.bnc-glyph .lug-b{bottom:36px; right:6px; transform:rotate(-30deg)}
.hero-badge{
  border:1px solid var(--border); background:#fff; border-radius:10px; padding:8px 16px;
  font-family:var(--font-code); font-size:12px; text-align:center; color:var(--muted); box-shadow:var(--shadow);
}

/* ---------- 按钮 ---------- */
.btn{display:inline-block; border-radius:10px; padding:12px 22px; font-weight:700; font-size:15px; cursor:pointer; border:1.5px solid transparent}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--color-primary); color:#fff}
.btn-primary:hover{background:var(--color-primary-strong); color:#fff}
.btn-ghost{background:transparent; border-color:var(--color-primary); color:var(--color-primary)}
.btn-ghost:hover{background:hsl(var(--hue) 60% 95%)}
.btn-light{background:#fff; color:var(--color-primary-strong)}
.btn-sm{padding:8px 14px; font-size:13px}

/* ---------- 区块 ---------- */
.section{padding:56px 0}
.section-alt{background:hsl(var(--hue) 36% 96%)}
.section-title{font-family:var(--font-heading); font-size:28px; margin:0 0 8px; color:var(--color-primary-strong)}
.section-sub{color:var(--muted); margin:0 0 28px}
.grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:20px}
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:20px}
.cat-card,.scene-card,.promise-card{
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  box-shadow:var(--shadow); padding:22px; display:block; color:var(--fg);
}
.cat-card:hover{text-decoration:none; transform:translateY(-3px); transition:.2s; border-color:var(--color-primary)}
.cat-card h3,.scene-card h3,.promise-card h3{margin:0 0 8px; font-size:18px; color:var(--color-primary-strong)}
.cat-card p,.scene-card p,.promise-card p{margin:0; font-size:14px; color:var(--muted)}
.cat-more{display:inline-block; margin-top:12px; color:var(--color-primary); font-weight:700; font-size:14px}

/* ---------- 表格（table_class: data） ---------- */
.table-wrap{overflow-x:auto; margin-top:32px; background:var(--card); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow)}
table.data{width:100%; border-collapse:collapse; font-size:14.5px}
table.data caption{caption-side:top; text-align:left; padding:14px 18px 0; font-weight:700; color:var(--color-primary-strong)}
table.data th, table.data td{padding:12px 16px; border-bottom:1px solid var(--border); text-align:left; vertical-align:top}
table.data thead th{background:hsl(var(--hue) 40% 95%); color:var(--color-primary-strong); white-space:nowrap}
table.data tbody tr:last-child td{border-bottom:none}
table.data tbody tr:nth-child(even){background:hsl(var(--hue) 34% 98%)}

/* ---------- 列表页：左侧垂直分类（M1'） ---------- */
.cat-layout{display:grid; grid-template-columns:250px 1fr; gap:40px; padding:40px 20px}
.cat-side-title{font-size:16px; margin:0 0 10px; color:var(--color-primary-strong)}
ul.category-list{list-style:none; margin:0 0 20px; padding:0; border:1px solid var(--border); border-radius:12px; overflow:hidden; background:var(--card)}
ul.category-list li a{display:block; padding:11px 16px; border-left:3px solid transparent; color:var(--fg); font-size:15px}
ul.category-list li a:hover{background:hsl(var(--hue) 40% 95%); text-decoration:none}
ul.category-list li.active a{border-left-color:var(--color-accent); background:hsl(var(--hue) 46% 94%); font-weight:700; color:var(--color-primary-strong)}
.cat-side-card{background:hsl(var(--hue) 44% 95%); border-radius:12px; padding:16px; font-size:13.5px; color:var(--muted)}
.cat-content{min-width:0}
.list-intro{color:var(--muted); max-width:70ch}
.entry-list{list-style:none; margin:24px 0 0; padding:0}
.entry-item{background:var(--card); border:1px solid var(--border); border-radius:12px; padding:18px 20px; margin-bottom:14px}
.entry-link{font-size:18px; font-weight:700; color:var(--color-primary-strong)}
.entry-summary{margin:6px 0 8px; color:var(--muted); font-size:14px}
.entry-meta{font-size:13px; margin:0}

/* ---------- 详情页：正文 + 右侧 TOC 悬浮（M1''，仅 sticky） ---------- */
.detail-layout{padding:36px 20px 64px}
.detail-main{max-width:1060px; margin:0 auto}
.detail-h1{font-family:var(--font-heading); font-size:32px; line-height:1.3; margin:10px 0 14px; color:var(--color-primary-strong)}
.detail-meta{display:flex; align-items:center; gap:12px; flex-wrap:wrap; font-size:14px; color:var(--muted); margin-bottom:18px}
.cat-chip{background:hsl(var(--hue) 50% 93%); border-radius:999px; padding:3px 12px; font-weight:600}
.status-chip{background:hsl(38 90% 92%); color:hsl(28 80% 32%); border-radius:999px; padding:3px 12px; font-weight:600}
.body-cols{display:grid; grid-template-columns:minmax(0,760px) 240px; gap:32px; justify-content:start}
.abstract-block{background:hsl(var(--hue) 46% 95%); border-left:4px solid var(--color-primary); border-radius:0 12px 12px 0; padding:16px 20px; margin:0 0 14px}
.abstract-block p{margin:0}
.kw-line{font-size:14px; color:var(--muted)}
.toc-aside{position:sticky; top:80px; max-height:calc(100vh - 100px); overflow-y:auto; align-self:start}
.toc-box{background:var(--card); border:1px solid var(--border); border-radius:12px; padding:14px 16px; box-shadow:var(--shadow)}
.toc-title{font-size:15px; margin:0 0 8px; color:var(--color-primary-strong)}
#toc{list-style:none; margin:0; padding:0; font-size:13.5px}
#toc li{margin:2px 0}
#toc a{display:block; padding:5px 8px; border-radius:6px; color:var(--muted)}
#toc a:hover{background:hsl(var(--hue) 40% 95%); color:var(--color-primary); text-decoration:none}

/* ---------- 正文 ---------- */
.article-html{font-size:16px}
.article-html h2{font-family:var(--font-heading); font-size:23px; color:var(--color-primary-strong); margin:34px 0 12px; padding-top:10px}
.article-html h3{font-size:18px; margin:24px 0 10px}
.article-html p{margin:0 0 1.2em}
.article-html ul,.article-html ol{padding-left:1.5em; margin:0 0 1.2em}
.article-html blockquote{margin:1.2em 0; padding:10px 16px; border-left:4px solid var(--color-accent); background:hsl(38 80% 96%); border-radius:0 10px 10px 0}
.article-html code{font-family:var(--font-code); font-size:.9em; background:hsl(var(--hue) 30% 94%); padding:1px 6px; border-radius:6px}
.article-html .table-wrap, .article-html table.data{margin-top:8px; margin-bottom:1.4em; box-shadow:none; border-radius:10px}
.article-html table.data{font-size:14px}
.param-section h2,.faq-section h2,.related-section h2,.case-callout h2{font-family:var(--font-heading); font-size:22px; color:var(--color-primary-strong)}
.param-section{margin-top:26px}
.case-callout{background:hsl(38 85% 95%); border:1px solid hsl(38 70% 85%); border-radius:12px; padding:16px 20px; margin:28px 0}
.faq-section{margin-top:30px}
.faq-section details{background:var(--card); border:1px solid var(--border); border-radius:10px; padding:4px 16px; margin:10px 0}
.faq-section summary{cursor:pointer; font-weight:700; padding:8px 0; color:var(--color-primary-strong)}
.faq-section .faq-a{padding:2px 0 10px; color:var(--fg); font-size:15px}
.related-section{margin-top:30px}
.related-list{list-style:none; padding:0; margin:0}
.related-list li{background:var(--card); border:1px solid var(--border); border-radius:10px; padding:12px 16px; margin:10px 0; font-size:15px}
.detail-cta{margin-top:36px; background:linear-gradient(120deg, var(--color-primary), hsl(var(--hue) 70% 38%)); color:#fff; border-radius:var(--radius); padding:24px 28px; display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap}
.detail-cta p{margin:0; font-weight:600}
.detail-cta .btn{background:#fff; color:var(--color-primary-strong)}

/* ---------- 标签（M8：纯文本，不可点击） ---------- */
.tag-text{display:inline-block; background:hsl(var(--hue) 34% 94%); color:var(--muted); border-radius:6px; padding:2px 10px; font-size:13px; margin:2px 4px 2px 0}

/* ---------- 首页其余 ---------- */
.home-news{list-style:none; padding:0; margin:0 0 22px}
.home-news li{display:flex; justify-content:space-between; gap:16px; padding:12px 4px; border-bottom:1px dashed var(--border)}
.home-news a{font-weight:600; color:var(--fg)}
.home-news a:hover{color:var(--color-primary)}
.cta-banner{background:linear-gradient(120deg, hsl(var(--hue) 70% 24%), hsl(var(--hue) 72% 34%)); color:#fff; padding:52px 0}
.cta-inner{display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap}
.cta-banner h2{margin:0 0 8px; font-size:26px}
.cta-banner p{margin:0; opacity:.9; max-width:60ch}
.cta-banner .btn{background:#fff; color:var(--color-primary-strong)}
.notfound{text-align:center; padding:90px 20px}
.notfound-code{font-family:var(--font-code); font-size:72px; color:var(--color-primary); margin:0; font-weight:700}

/* ---------- 中部悬浮胶囊：名片 + 到顶 ---------- */
.capsule-dock{
  position:fixed; right:14px; top:50%; transform:translateY(-50%); z-index:80;
  display:flex; flex-direction:column; gap:10px;
}
.capsule{
  display:flex; flex-direction:column; align-items:center; gap:4px;
  width:64px; padding:10px 6px; border:1px solid var(--border); border-radius:999px;
  background:var(--card); color:var(--color-primary-strong); box-shadow:var(--shadow); cursor:pointer;
}
.capsule:hover{border-color:var(--color-primary); color:var(--color-primary)}
.capsule-icon{flex:0 0 auto}
.capsule-text{font-size:11px; font-weight:700; line-height:1.25; text-align:center}

/* ---------- 企业微信名片弹窗（四种关闭） ---------- */
.card-modal{position:fixed; inset:0; z-index:100; display:flex; align-items:center; justify-content:center}
.card-modal[hidden]{display:none}
.card-modal-mask{position:absolute; inset:0; background:rgba(8,40,50,.62)}
.card-modal-dialog{
  position:relative; z-index:1; background:#fff; border-radius:16px; padding:14px;
  max-width:min(92vw, 560px); max-height:92vh; display:flex; flex-direction:column; align-items:center; gap:10px;
  box-shadow:0 24px 64px rgba(0,0,0,.35);
}
.card-modal-body{overflow:auto; max-height:calc(92vh - 96px); border-radius:10px}
.card-modal-img{display:block; width:auto; height:auto; max-width:none}
.card-modal-close{
  position:absolute; top:8px; right:10px; z-index:2; width:34px; height:34px; border-radius:50%;
  border:none; background:rgba(255,255,255,.9); color:#111; font-size:22px; line-height:1; cursor:pointer; box-shadow:0 2px 8px rgba(0,0,0,.25);
}
.card-modal-tip{margin:0; font-size:14px; color:var(--muted); text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:hsl(var(--hue) 30% 12%); color:hsl(var(--hue) 12% 78%); margin-top:56px}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; padding:44px 20px}
.footer-brand img{background:#fff; border-radius:8px; padding:4px}
.footer-line{font-size:13.5px; margin:12px 0 0; max-width:44ch}
.footer-col h3{color:#fff; font-size:15px; margin:0 0 12px}
.footer-col ul{list-style:none; margin:0; padding:0; font-size:14px}
.footer-col li{margin:6px 0}
.footer-col a{color:hsl(var(--hue) 14% 74%)}
.footer-col a:hover{color:#fff}
.footer-beian{border-top:1px solid hsl(var(--hue) 16% 22%)}
.beian-inner{display:flex; gap:26px; justify-content:center; flex-wrap:wrap; padding:16px 20px; font-size:13px}
.beian-item{display:inline-flex; align-items:center; gap:6px; color:hsl(var(--hue) 12% 70%)}
.beian-item img{border-radius:3px}
.beian-item:hover{color:#fff; text-decoration:none}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .cat-layout{grid-template-columns:1fr; padding:24px 16px}
  .body-cols{grid-template-columns:1fr}
  .toc-aside{position:static; max-height:none; order:-1}
  .detail-h1{font-size:26px}
  .hero{padding:44px 0}
  .hero h1{font-size:28px}
  .header-inner{height:auto; padding:10px 0; flex-wrap:wrap}
  .nav-toggle{display:block; order:2}
  .header-card-btn{order:3; margin-left:auto}
  .site-nav{display:none; order:5; width:100%; margin:0}
  .site-nav.open{display:block}
  .site-nav>ul{flex-direction:column; gap:0}
  .site-nav .sub{position:static; display:block; box-shadow:none; border:none; padding-left:18px}
  .capsule-dock{right:8px}
  .capsule{width:56px; padding:8px 4px}
  .footer-grid{grid-template-columns:1fr; gap:24px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{transition:none !important; animation:none !important}
}

/* ---------- 面包屑（横排） ---------- */
.breadcrumb{margin:18px 0 4px; font-size:13.5px}
.breadcrumb ol{
  display:flex; flex-wrap:wrap; align-items:center; gap:2px;
  list-style:none; margin:0; padding:0; color:var(--muted);
}
.breadcrumb li{display:flex; align-items:center}
.breadcrumb li+li::before{content:"/"; margin:0 9px; color:var(--border)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--color-primary); text-decoration:none}
.breadcrumb [aria-current="page"]{color:var(--muted)}