/* 精密注塑.中国 · pim- 主题（亮色明亮科技风，独立骨架） */
:root{
  --bg:#F4F6FB;
  --surface:#FFFFFF;
  --ink:#0E1B2E;
  --ink-soft:#46566B;
  --line:#E2E8F2;
  --primary:#2D3FE0;
  --primary-dark:#1F2DB0;
  --accent:#FF7A45;
  --accent-dark:#E85C28;
  --ok:#16A34A;
  --shadow:0 6px 24px rgba(20,30,60,.08);
  --radius:14px;
  --header-h:64px;
  --h2-inset:0px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
img{max-width:100%}
p{margin:0 0 1em}

/* ---------- Header / Nav ---------- */
.pim-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.pim-header-inner{max-width:1200px;margin:0 auto;height:var(--header-h);
  display:flex;align-items:center;gap:18px;padding:0 20px}
.pim-logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}
.pim-logo-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:13px;letter-spacing:.5px}
.pim-logo-text{font-size:17px}
.pim-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.pim-nav-link{display:inline-block;padding:10px 14px;border-radius:9px;color:var(--ink-soft);font-weight:600;font-size:15px;cursor:pointer}
.pim-nav-link:hover{background:var(--bg);color:var(--primary)}
.pim-nav-cta{background:var(--accent);color:#fff!important}
.pim-nav-cta:hover{background:var(--accent-dark);color:#fff!important}
.pim-has-menu{position:relative}
.pim-has-menu>summary{list-style:none}
.pim-has-menu>summary::-webkit-details-marker{display:none}
.pim-dropdown{display:none;position:absolute;top:100%;left:0;min-width:180px;background:var(--surface);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:8px;z-index:60}
.pim-dropdown a{display:block;padding:9px 12px;border-radius:8px;color:var(--ink-soft);font-weight:600}
.pim-dropdown a:hover{background:var(--bg);color:var(--primary)}
.pim-has-menu:hover>.pim-dropdown,.pim-has-menu[open]>.pim-dropdown{display:block}
.pim-nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:10px;width:42px;height:40px;font-size:18px;color:var(--ink);cursor:pointer}

/* ---------- Layout grids ---------- */
.pim-main{max-width:1200px;margin:0 auto;padding:24px 20px 48px}
.pim-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px;align-items:start}
.pim-list-layout.pim-layout-grid{grid-template-columns:240px minmax(0,1fr);gap:28px}
.pim-content-main{min-width:0}
.pim-toc-aside{min-width:0}
.pim-toc-aside{position:sticky;top:calc(var(--header-h) + 16px);max-height:calc(100vh - var(--header-h) - 32px);overflow:auto}

/* ---------- Breadcrumb (对齐 H2 左缘) ---------- */
.pim-breadcrumb{margin:0 0 18px;padding-left:var(--h2-inset)}
.pim-breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;font-size:13.5px;color:var(--ink-soft)}
.pim-breadcrumb li{display:flex;align-items:center;gap:6px}
.pim-breadcrumb li+li::before{content:"›";color:#9FB0C6}
.pim-breadcrumb a{color:var(--ink-soft)}
.pim-breadcrumb a:hover{color:var(--primary)}

/* ---------- Article / Product typography ---------- */
.pim-h1{font-size:30px;line-height:1.3;margin:0 0 14px;color:var(--ink);letter-spacing:-.3px}
.pim-update{display:inline-block;font-size:13px;color:var(--ink-soft);margin-bottom:18px;
  background:var(--bg);padding:4px 10px;border-radius:20px}
.pim-article-body,.pim-product-body,.pim-page-body{font-size:16.5px;color:var(--ink)}
.pim-article-body h2,.pim-product-body h2,.pim-page-body h2{
  font-size:22px;margin:32px 0 12px;padding-left:var(--h2-inset);color:var(--ink);
  border-left:4px solid var(--primary);padding-left:14px;scroll-margin-top:calc(var(--header-h) + 16px)}
.pim-article-body h3,.pim-product-body h3{font-size:18px;margin:22px 0 10px;color:var(--ink)}
.pim-article-body p,.pim-product-body p,.pim-page-body p{margin:0 0 1em;color:#1c2a3d}
.pim-article-body ul,.pim-product-body ul,.pim-page-body ul{margin:0 0 1em;padding-left:22px}
.pim-article-body li,.pim-product-body li{margin:.35em 0;color:#1c2a3d}
.pim-article-body strong,.pim-product-body strong{color:var(--ink);font-weight:700}
.pim-article-body blockquote,.pim-product-body blockquote{
  margin:18px 0;padding:14px 18px;background:linear-gradient(180deg,#EEF1FF,#F6F8FF);
  border-left:4px solid var(--primary);border-radius:10px;color:#27324a;font-size:15.5px}
.pim-article-body blockquote p:last-child{margin-bottom:0}

/* ---------- Tables (覆盖全部正文表格) ---------- */
.pim-content-main table,table.pim-spec{
  width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;background:var(--surface);
  border:1px solid #cbd5e1;border-radius:10px;overflow:hidden}
.pim-content-main table th,table.pim-spec th{
  background:var(--primary);color:#fff;font-weight:700;text-align:left;padding:10px 12px;border:1px solid #cbd5e1}
.pim-content-main table td,table.pim-spec td{padding:9px 12px;border:1px solid #cbd5e1;color:#27324a}
.pim-content-main table tr:nth-child(even) td,table.pim-spec tr:nth-child(even) td{background:#F7F9FE}

/* ---------- TOC panel ---------- */
.pim-toc-panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.pim-toc-summary{cursor:pointer;font-weight:700;color:var(--ink);padding:2px 0;list-style:none}
.pim-toc-summary::-webkit-details-marker{display:none}
.pim-toc-summary::after{content:"▾";float:right;color:var(--ink-soft)}
.pim-toc-panel[open] .pim-toc-summary::after{content:"▴"}
.pim-toc-list{list-style:none;margin:10px 0 0;padding:0;counter-reset:toc}
.pim-toc-list li{counter-increment:toc;margin:7px 0;font-size:14px;line-height:1.4}
.pim-toc-list li a{color:var(--ink-soft)}
.pim-toc-list li a:hover{color:var(--primary)}
.pim-toc-list li a::before{content:counter(toc) ". ";color:var(--primary);font-weight:700}

/* ---------- Category panel (list pages) ---------- */
.pim-cat-side{min-width:0}
.pim-cat-panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;
  position:sticky;top:calc(var(--header-h) + 16px)}
.pim-cat-summary{cursor:pointer;font-weight:700;color:var(--ink);list-style:none}
.pim-cat-summary::-webkit-details-marker{display:none}
.pim-cat-summary::after{content:"▾";float:right;color:var(--ink-soft)}
.pim-cat-panel[open] .pim-cat-summary::after{content:"▴"}
.pim-category-list{list-style:none;margin:10px 0 0;padding:0}
.pim-category-list li{margin:2px 0}
.pim-category-list a{display:flex;justify-content:space-between;align-items:center;padding:9px 12px;border-radius:9px;color:var(--ink-soft);font-weight:600}
.pim-category-list a:hover{background:var(--bg);color:var(--primary)}
.pim-category-list a.active{background:var(--primary);color:#fff}
.pim-cat-count{font-size:12px;background:rgba(45,63,224,.12);color:var(--primary);padding:1px 8px;border-radius:20px}
.pim-category-list a.active .pim-cat-count{background:rgba(255,255,255,.25);color:#fff}

/* ---------- FAQ ---------- */
.pim-faq{margin:28px 0}
.pim-faq-title{font-size:22px;margin:0 0 12px;color:var(--ink)}
.pim-faq-item{border:1px solid var(--line);border-radius:11px;margin-bottom:10px;background:var(--surface);overflow:hidden}
.pim-faq-item>summary{cursor:pointer;padding:14px 16px;font-weight:700;color:var(--ink);list-style:none}
.pim-faq-item>summary::-webkit-details-marker{display:none}
.pim-faq-item>summary::after{content:"+";float:right;color:var(--primary);font-size:20px;line-height:1}
.pim-faq-item[open]>summary::after{content:"−"}
.pim-faq-a{padding:0 16px 14px;color:#27324a}

/* ---------- Related ---------- */
.pim-related{margin:28px 0}
.pim-related-title{font-size:22px;margin:0 0 12px;color:var(--ink)}
.pim-related-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.pim-related-list li{padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:11px}
.pim-related-list a{font-weight:700}
.pim-related-why{display:block;color:var(--ink-soft);font-size:14px;margin-top:3px}

/* ---------- Case study ---------- */
.pim-case{margin:24px 0;padding:16px 18px;border-radius:12px;background:linear-gradient(135deg,#FFF4EE,#FFEDE4);border:1px solid #FFD9C7}
.pim-case-tag{display:inline-block;font-size:12px;font-weight:800;color:var(--accent-dark);background:#fff;border:1px solid #FFD9C7;padding:2px 10px;border-radius:20px;margin-bottom:8px}
.pim-case-text{margin:0;color:#5a3a28;font-size:15px}

/* ---------- List page cards ---------- */
.pim-list-head{margin:0 0 18px}
.pim-list-desc{color:var(--ink-soft);margin:6px 0 0}
.pim-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.pim-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;transition:.18s;box-shadow:var(--shadow)}
.pim-card:hover{transform:translateY(-3px);border-color:var(--primary)}
.pim-card-cat{font-size:12px;font-weight:700;color:var(--primary);background:#EEF1FF;padding:2px 10px;border-radius:20px;display:inline-block;margin-bottom:10px}
.pim-card-title{font-size:18px;margin:0 0 8px;color:var(--ink)}
.pim-card-desc{margin:0;color:var(--ink-soft);font-size:14.5px;line-height:1.6}

/* ---------- Home ---------- */
.pim-hero{background:linear-gradient(135deg,#0E1B2E 0%,#1F2DB0 60%,#2D3FE0 100%);color:#fff;border-radius:0 0 28px 28px;margin:-24px -20px 0;padding:54px 20px}
.pim-hero-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center}
.pim-hero-eyebrow{letter-spacing:2px;font-size:13px;color:#AEB8FF;margin:0 0 8px;font-weight:700}
.pim-hero-title{font-size:44px;line-height:1.15;margin:0 0 16px;font-weight:800}
.pim-hero-sub{font-size:17px;color:#D7DCFF;margin:0 0 24px;max-width:540px}
.pim-hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.pim-btn{display:inline-block;padding:13px 24px;border-radius:12px;font-weight:700;font-size:15px;cursor:pointer;border:2px solid transparent}
.pim-btn-primary{background:var(--accent);color:#fff}
.pim-btn-primary:hover{background:var(--accent-dark);color:#fff}
.pim-btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.pim-btn-ghost:hover{border-color:#fff;color:#fff}
.pim-hero-card{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pim-hero-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:16px}
.pim-hero-stat b{display:block;font-size:22px;color:#fff}
.pim-hero-stat span{font-size:13px;color:#C7CCF2}
.pim-section{max-width:1200px;margin:0 auto;padding:46px 0}
.pim-section-head{margin-bottom:24px}
.pim-section-title{font-size:28px;margin:0 0 8px;color:var(--ink)}
.pim-section-desc{color:var(--ink-soft);margin:0;max-width:720px}
.pim-chain-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:8px}
.pim-chain-node{flex:1 1 130px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.pim-chain-node:hover{border-color:var(--primary)}
.pim-chain-no{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;font-size:13px;font-weight:700;margin-bottom:8px}
.pim-chain-name{display:block;font-weight:800;color:var(--ink);font-size:16px}
.pim-chain-desc{display:block;color:var(--ink-soft);font-size:13px;margin-top:4px}
.pim-chain-arrow{align-self:center;color:var(--primary);font-weight:800;font-size:18px}
.pim-prod-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.pim-prod-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);transition:.18s}
.pim-prod-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.pim-prod-card-title{font-size:19px;margin:0 0 10px;color:var(--ink)}
.pim-prod-card-desc{color:var(--ink-soft);font-size:14.5px;margin:0 0 12px;min-height:42px}
.pim-prod-card-go{color:var(--primary);font-weight:700;font-size:14px}
.pim-keyword-cloud{display:flex;flex-wrap:wrap;gap:10px}
.pim-keyword{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:8px 16px;font-weight:600;color:var(--ink-soft);box-shadow:var(--shadow)}
.pim-scenario-caps{display:flex;flex-wrap:wrap;gap:12px}
.pim-scenario-cap{background:linear-gradient(135deg,#EEF1FF,#F6F8FF);border:1px solid #D9E0FF;border-radius:24px;padding:10px 20px;font-weight:700;color:var(--primary-dark)}
.pim-scenario-cap:hover{border-color:var(--primary)}
.pim-baseline-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.pim-baseline-item{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center;box-shadow:var(--shadow)}
.pim-baseline-num{display:block;font-size:30px;font-weight:800;color:var(--primary)}
.pim-baseline-label{display:block;color:var(--ink-soft);font-size:14px;margin-top:6px}
.pim-cta-band{background:linear-gradient(135deg,#2D3FE0,#1F2DB0);color:#fff;border-radius:24px;margin:20px auto 0;max-width:1200px;padding:44px 24px;text-align:center}
.pim-cta-title{font-size:26px;margin:0 0 10px}
.pim-cta-sub{color:#D7DCFF;margin:0 0 22px;max-width:640px;margin-left:auto;margin-right:auto}

/* ---------- Page wrap ---------- */
.pim-page-wrap{max-width:880px;margin:0 auto}
.pim-page-body h2{font-size:23px;margin:30px 0 12px;color:var(--ink);border-left:4px solid var(--primary);padding-left:14px}
.pim-page-body h3{font-size:19px;margin:22px 0 10px;color:var(--ink)}
.pim-404{text-align:center;padding:60px 0}

/* ---------- Footer ---------- */
.pim-footer{background:#0E1B2E;color:#C7CCE0;margin-top:40px}
.pim-footer-inner{max-width:1200px;margin:0 auto;padding:40px 20px;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.pim-footer .pim-logo{color:#fff;margin-bottom:12px}
.pim-footer-desc{color:#9AA6C4;font-size:14px;max-width:340px;line-height:1.7}
.pim-footer-contact{font-size:14px;margin-top:12px}
.pim-mail-btn{background:none;border:none;color:var(--accent);font-weight:700;cursor:pointer;font-size:14px;padding:0}
.pim-mail-btn:hover{color:#ffa07a}
.pim-footer-col h4{color:#fff;font-size:15px;margin:0 0 12px}
.pim-footer-col ul{list-style:none;margin:0;padding:0}
.pim-footer-col li{margin:8px 0}
.pim-footer-col a{color:#9AA6C4;font-size:14px}
.pim-footer-col a:hover{color:#fff}
.pim-footer-bottom{border-top:1px solid #1d2a40;padding:16px 20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#7E8AA8;max-width:1200px;margin:0 auto}

/* ---------- Float capsule ---------- */
.pim-float{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:80;display:flex;flex-direction:column;gap:10px;
  background:linear-gradient(135deg,var(--primary),var(--accent));padding:10px;border-radius:40px;box-shadow:0 10px 30px rgba(45,63,224,.35)}
.pim-float-btn{display:flex;flex-direction:column;align-items:center;gap:2px;background:rgba(255,255,255,.14);border:none;border-radius:30px;
  color:#fff;width:54px;height:54px;cursor:pointer;font-size:11px;font-weight:700}
.pim-float-btn:hover{background:rgba(255,255,255,.28)}
.pim-float-ico{font-size:18px;line-height:1}
.pim-card-mask{position:fixed;inset:0;background:rgba(14,27,46,.6);z-index:90;display:flex;align-items:center;justify-content:center}
.pim-card-mask[hidden]{display:none}
.pim-card-pop{position:relative;background:#fff;border-radius:14px;padding:10px;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.pim-card-img{display:block;border-radius:8px}
.pim-card-close{position:absolute;top:-12px;right:-12px;width:34px;height:34px;border-radius:50%;border:none;background:var(--ink);color:#fff;font-size:20px;cursor:pointer}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .pim-layout-grid,.pim-list-layout.pim-layout-grid{grid-template-columns:1fr}
  .pim-toc-aside{position:static;max-height:none}
  .pim-cat-panel{position:static}
  .pim-prod-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pim-baseline-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pim-hero-inner{grid-template-columns:1fr}
  .pim-footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .pim-nav-toggle{display:block}
  .pim-nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--surface);border-bottom:1px solid var(--line);padding:10px 20px;gap:2px}
  .pim-nav.pim-nav-open{display:flex}
  .pim-dropdown{position:static;box-shadow:none;border:none;padding:0 0 0 12px}
  .pim-has-menu:hover>.pim-dropdown{display:none}
  .pim-has-menu[open]>.pim-dropdown{display:block}
  .pim-card-grid{grid-template-columns:1fr}
  .pim-prod-grid{grid-template-columns:1fr}
  .pim-baseline-grid{grid-template-columns:1fr}
  .pim-hero-title{font-size:32px}
  .pim-hero-card{grid-template-columns:1fr 1fr}
  .pim-h1{font-size:25px}
  .pim-section-title{font-size:23px}
  .pim-float{right:12px}
  .pim-float-btn{width:48px;height:48px}
  .pim-footer-inner{grid-template-columns:1fr}
}