/* ===== 域塑科技 · precision-indigo（与 micro 蓝、cnc 暗色差异化） ===== */
:root{
  --bg:#ffffff; --bg-alt:#f5f7fc; --bg-deep:#0b1024;
  --text:#0f172a; --muted:#5b6b82; --line:#e6ebf3;
  --primary:#4f46e5; --primary-2:#7c3aed; --primary-ink:#3730a3;
  --accent:#f59e0b;
  --radius:14px; --radius-sm:9px;
  --shadow:0 8px 30px rgba(40,40,90,.10);
  --shadow-sm:0 2px 12px rgba(40,40,90,.07);
  --container:1200px; --h2-inset:24px;
  --header-h:64px;
  --font:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  line-height:1.75;font-size:16px;padding-top:var(--header-h);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-ink)}
h1,h2,h3,h4{line-height:1.3;color:#0b1024;font-weight:700}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--h2-inset)}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:60;
  background:rgba(255,255,255,.88);backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line)}
.header-inner{height:100%;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#0b1024}
.brand img{border-radius:8px}
.brand-name{font-size:18px;letter-spacing:.5px}
.brand-en{font-size:11px;color:var(--muted);font-weight:600;letter-spacing:.5px}
.site-nav{margin-left:auto}
.site-nav>ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;align-items:center}
.site-nav a{display:block;padding:9px 13px;border-radius:9px;color:#1d2c40;font-weight:600;font-size:15px}
.site-nav a:hover{background:var(--bg-alt);color:var(--primary)}
.site-nav .has-sub{position:relative}
.sub-menu{display:none;position:absolute;top:100%;left:0;min-width:190px;background:#fff;
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:8px;z-index:70}
.site-nav .has-sub:hover .sub-menu{display:block}
.sub-menu li{list-style:none}
.sub-menu a{padding:8px 12px;font-weight:500;font-size:14px}
.sub-toggle{display:none}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:10px;cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{width:20px;height:2px;background:#0b1024;border-radius:2px}

/* ===== Breadcrumb ===== */
.breadcrumb{font-size:13px;color:var(--muted);margin:18px 0 6px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;align-items:center}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#b9c6d6}
.breadcrumb [aria-current]{color:#33445c;font-weight:600}

/* ===== Article layout ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;
  align-items:start;padding-bottom:48px}
.article-body{max-width:760px}
.article-title{font-size:30px;margin:6px 0 16px;letter-spacing:.3px}
.lead{font-size:17px;color:#243b57;background:linear-gradient(180deg,#eef0ff,#f3f0ff);
  border-left:4px solid var(--primary);padding:16px 18px;border-radius:0 12px 12px 0;margin:0 0 14px}
.kw-line{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.tag-text{display:inline-block;background:var(--bg-alt);border:1px solid var(--line);
  color:#3a3a8a;font-size:12.5px;padding:3px 10px;border-radius:999px}
.article-meta{font-size:13px;color:var(--muted);margin-bottom:18px}
.article-meta time{font-variant-numeric:tabular-nums}
.author-line{font-size:13px;color:var(--muted);margin:-10px 0 18px;padding:8px 12px;background:#f4f3ff;border-left:3px solid var(--primary-2);border-radius:0 6px 6px 0}

/* body content */
.article-body h2{font-size:22px;margin:34px 0 12px;padding-top:6px}
.article-body h3{font-size:18px;margin:24px 0 10px}
.article-body p{margin:0 0 14px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 14px}
.article-body li{margin:4px 0}
.article-body blockquote{margin:16px 0;padding:14px 18px;background:var(--bg-alt);
  border-left:4px solid var(--primary-2);border-radius:0 10px 10px 0;color:#243b57}
.article-body blockquote p{margin:0}
.article-body strong{color:#0b1024}

/* tables */
table.data{width:100%;border-collapse:collapse;margin:16px 0 22px;font-size:14.5px;
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
table.data th,table.data td{border-bottom:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
table.data thead th{background:#eef0ff;color:#0b1024;font-weight:700}
table.data tbody tr:last-child td{border-bottom:none}
table.data tbody tr:hover{background:#f7f8ff}

/* case box */
.case-box{margin:24px 0;padding:16px 18px;background:linear-gradient(180deg,#fffaf0,#fff7e8);
  border:1px solid #f3e2bf;border-left:4px solid var(--accent);border-radius:0 12px 12px 0}
.case-box p{margin:6px 0 0;color:#5a4a23}
.case-tag{display:inline-block;font-size:12px;font-weight:700;color:#b45309;background:#fde9c8;
  padding:2px 10px;border-radius:999px}

/* TOC */
.toc-aside{position:sticky;top:calc(var(--header-h) + 16px);max-height:calc(100vh - 100px);overflow:auto}
.toc{background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.toc-h{margin:0 0 8px;font-size:13px;color:var(--muted);font-weight:700;letter-spacing:.5px}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin:2px 0}
.toc a{color:#3a3a8a;font-size:13.5px;display:block;padding:3px 0}
.toc a:hover{color:var(--primary)}
.toc .toc-l3{padding-left:14px;font-size:13px}
.toc .toc-l3 a{color:#6b6b98}

/* FAQ (bare <details>) */
.faq{margin:30px 0}
.faq-title{font-size:21px;margin:0 0 12px}
details{border:1px solid var(--line);border-radius:11px;background:#fff;margin:0 0 10px;overflow:hidden}
details summary{cursor:pointer;padding:13px 16px;font-weight:600;color:#16263d;list-style:none;
  display:flex;align-items:center;gap:8px}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"+";color:var(--primary);font-weight:800;font-size:18px;line-height:1}
details[open] summary::before{content:"−"}
.faq-a{padding:0 16px 14px;color:#33455c}
.related{margin:28px 0}
.related-title{font-size:20px}
.related-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.related-list a{display:block;padding:12px 16px;background:var(--bg-alt);border:1px solid var(--line);
  border-radius:11px;font-weight:600;color:#1d2c40}
.related-list a:hover{border-color:var(--primary);color:var(--primary)}

/* ===== Product ===== */
.prod-tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.prod-tags .status{background:#e9f7ef;color:#0a7a43;border-color:#bfe6cf}
.spec{margin:8px 0 18px}

/* ===== List / cards ===== */
.list-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;padding-bottom:48px}
.cat-side{position:sticky;top:calc(var(--header-h) + 16px);align-self:start}
.cat-side-h{font-size:13px;color:var(--muted);font-weight:700;margin:0 0 10px;letter-spacing:.5px}
.category-list{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.category-list li a{display:block;padding:11px 16px;color:#2a3c54;font-weight:600;border-bottom:1px solid var(--line)}
.category-list li:last-child a{border-bottom:none}
.category-list li a:hover{background:var(--bg-alt);color:var(--primary)}
.category-list li.active a{background:var(--primary);color:#fff}
.cat-content .list-title{font-size:28px;margin:6px 0 6px}
.list-desc{color:var(--muted);margin:0 0 22px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 18px 20px;
  box-shadow:var(--shadow-sm);transition:.18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c9c4ff}
.card-cat{display:inline-block;font-size:12px;color:var(--primary);background:#eef0ff;
  border-radius:999px;padding:2px 10px;margin-bottom:10px;font-weight:700}
.card-title{font-size:17px;margin:0 0 8px}
.card-sum{color:var(--muted);font-size:14px;margin:0}

/* ===== Pages ===== */
.page-wrap{max-width:820px;margin:0 auto;padding:12px 0 48px}
.page-body h2{font-size:22px;margin:30px 0 10px}
.page-body h3{font-size:18px;margin:22px 0 8px}
.page-body .lead{margin-bottom:18px}
.page-body.center{text-align:center}

/* ===== Sections (home) ===== */
.section{padding:56px 0;border-top:1px solid var(--line)}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin:0 auto 30px;text-align:center}
.section-head h2{font-size:28px;margin:0 0 10px}
.section-head p{color:var(--muted);margin:0}
.mt{margin-top:26px}
.center{text-align:center}

.hero{background:radial-gradient(1100px 420px at 82% -10%,#312e81 0%,transparent 60%),
  radial-gradient(900px 420px at 0% 0%,#4c1d95 0%,transparent 55%),#0b1024;
  border-bottom:1px solid var(--line);padding:64px 0 56px}
.hero-inner{max-width:920px;margin:0 auto}
.hero-eyebrow{color:#a5b4fc;font-weight:700;letter-spacing:1px;font-size:14px;margin:0 0 12px}
.hero-title{font-size:44px;line-height:1.18;margin:0 0 16px;letter-spacing:.5px;color:#fff;
  background:linear-gradient(90deg,#fff,#c7d2fe);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:#c7d2fe;max-width:680px;margin:0 0 24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0;margin:0;
  background:rgba(255,255,255,.06);border:1px solid rgba(165,180,252,.25);border-radius:16px;padding:20px;backdrop-filter:blur(4px)}
.hero-stats li{text-align:center}
.hero-stats strong{display:block;font-size:21px;color:#fff}
.hero-stats span{font-size:13px;color:#a5b4fc}

.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cap-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow-sm);transition:.18s}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c9c4ff}
.cap-card h3{font-size:18px;margin:0 0 8px}
.cap-card p{color:var(--muted);font-size:14.5px;margin:0}
.cap-badge{display:inline-block;font-size:11px;font-weight:800;letter-spacing:1px;padding:3px 9px;border-radius:7px;margin-bottom:12px;color:#fff}
.cap-auto{background:#4f46e5}
.cap-med{background:#0d9488}
.cap-pkg{background:#f59e0b}
.cap-art{background:#7c3aed}

.prod-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.prod-cat{display:flex;justify-content:space-between;align-items:center;background:#fff;
  border:1px solid var(--line);border-radius:14px;padding:20px 22px;box-shadow:var(--shadow-sm)}
.prod-cat h3{margin:0;font-size:18px}
.prod-cat .arrow{color:var(--primary);font-weight:700}

.section-cta{background:linear-gradient(120deg,#0b1024,#4f46e5);color:#fff;border-top:none}
.cta-box{max-width:680px;margin:0 auto;text-align:center}
.cta-box h2{color:#fff;font-size:28px;margin:0 0 10px}
.cta-box p{color:#c7d2fe;margin:0 0 22px}

/* ===== Buttons ===== */
.btn{display:inline-block;background:var(--primary);color:#fff;font-weight:700;font-size:15px;
  padding:11px 22px;border:none;border-radius:11px;cursor:pointer;transition:.18s}
.btn:hover{background:var(--primary-ink);color:#fff}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid #c7c4ff}
.btn-ghost:hover{background:#eef0ff;color:var(--primary-ink)}
.btn-wechat{background:#07c160;color:#fff}
.btn-wechat:hover{background:#06ad56;color:#fff}

/* ===== Footer ===== */
.site-footer{background:var(--bg-deep);color:#cdd9ec;padding:44px 0 22px;margin-top:0}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:28px}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 12px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:6px 0}
.footer-col a{color:#bcd0ee}
.footer-col a:hover{color:#fff}
.footer-brand strong{color:#fff;font-size:17px;display:block;margin:6px 0}
.footer-desc{font-size:13.5px;color:#9fb2cf;margin:8px 0}
.footer-domain{font-size:13px;color:#7f93b3}
.footer-note{font-size:13px;color:#8aa0c2}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;font-size:13px;color:#8aa0c2}
.footer-bottom a{color:#bcd0ee}

/* ===== Floating capsule (LEFT) ===== */
.floating-capsule{position:fixed;left:20px;top:50%;transform:translateY(-50%);z-index:80;
  display:flex;flex-direction:column;gap:12px}
.cap-btn{width:52px;height:52px;border-radius:26px;border:1px solid var(--line);background:#fff;
  box-shadow:var(--shadow);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:#0b1024;font-weight:700;font-size:18px;transition:.18s}
.cap-btn:hover{transform:scale(1.06);border-color:var(--primary);color:var(--primary)}
.cap-wechat{background:#07c160;color:#fff;border-color:#07c160}
.cap-wechat:hover{background:#06ad56;color:#fff}
.cap-icon{font-size:15px;line-height:1}
.cap-text{font-size:11px;font-weight:600;margin-top:2px}

/* WeChat modal */
.wechat-modal{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center}
.wechat-modal[hidden]{display:none}
.wechat-modal-mask{position:absolute;inset:0;background:rgba(8,18,34,.55);backdrop-filter:blur(2px)}
.wechat-modal-box{position:relative;background:#fff;border-radius:16px;padding:16px;box-shadow:var(--shadow);
  text-align:center;animation:pop .18s ease-out}
@keyframes pop{from{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}
.wechat-card-img{width:300px;height:500px;object-fit:contain;border-radius:10px;background:#f3f6fb}
.wechat-tip{font-size:13px;color:var(--muted);margin:10px 0 2px}
.wechat-close{position:absolute;top:-12px;right:-12px;width:34px;height:34px;border-radius:50%;
  border:none;background:#0b1024;color:#fff;font-size:20px;cursor:pointer;line-height:1;box-shadow:var(--shadow)}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .article-layout{grid-template-columns:1fr}
  .toc-aside{display:none}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .site-nav{position:fixed;top:var(--header-h);left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .25s}
  .site-nav.open{max-height:90vh;overflow:auto}
  .site-nav>ul{flex-direction:column;align-items:stretch;gap:0;padding:8px}
  .site-nav a{padding:12px 14px}
  .site-nav .has-sub .sub-menu{position:static;display:none;box-shadow:none;border:none;border-radius:0;padding:0 0 0 12px}
  .site-nav .has-sub.open .sub-menu{display:block}
  .sub-toggle{display:block;position:absolute;right:12px;top:6px;width:34px;height:34px;border:none;
    background:var(--bg-alt);border-radius:8px;font-size:20px;color:var(--primary);cursor:pointer}
  .hero-title{font-size:32px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .prod-cats{grid-template-columns:1fr}
  .list-layout{grid-template-columns:1fr}
  .cat-side{position:static}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .cap-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .footer-inner{grid-template-columns:1fr}
  .floating-capsule{left:12px}
  .wechat-card-img{width:260px;height:433px}
}