/* 包装注塑模具技术站 · 科技风基础样式（全站唯一样式源） */
:root{
  --ink:#08182b; --ink-2:#0e2438; --ink-3:#16344f;
  --line:#e2e9f1; --line-2:#cfdae8;
  --bg:#f4f7fb; --surface:#ffffff; --surface-2:#f8fafc;
  --text:#14283c; --text-2:#3d5166; --muted:#64788d;
  --accent:#0a84ff; --accent-2:#00d4c8; --gold:#c9a25e;
  --radius:14px; --radius-sm:10px;
  --wrap:1200px; --shadow:0 6px 24px rgba(8,24,43,.08); --shadow-2:0 16px 48px rgba(8,24,43,.14);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .6em;font-weight:700;letter-spacing:.01em}
h1{font-size:2rem}h2{font-size:1.4rem}h3{font-size:1.12rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.3em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--text);padding:10px 16px;z-index:99}
.skip-link:focus{left:8px;top:8px}

/* ── 头部 ── */
.site-header{position:relative;z-index:40;background:linear-gradient(180deg,#08182b,#0e2438);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}
.brand img{height:36px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:1.02rem;letter-spacing:.02em}
.brand-text i{font-style:normal;font-size:.74rem;color:#8fb3d0;letter-spacing:.04em}
.site-nav{margin-left:auto}
.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.site-nav a{display:block;padding:10px 14px;border-radius:8px;color:#d8e6f4;font-size:.95rem}
.site-nav a:hover{background:rgba(255,255,255,.08);text-decoration:none}
.site-nav a.active{background:rgba(10,132,255,.22);color:#fff;box-shadow:inset 0 0 0 1px rgba(10,132,255,.5)}
.nav-toggle{display:none;margin-left:auto;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:8px;padding:8px 12px;font-size:.9rem;cursor:pointer;align-items:center;gap:8px}
.nav-toggle-bars{position:relative;width:18px;height:12px}
.nav-toggle-bars::before,.nav-toggle-bars::after,.nav-toggle-bars{background:currentColor}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px}
.nav-toggle-bars::before{top:0}.nav-toggle-bars::after{bottom:0}
.nav-toggle-bars{height:2px;border-radius:2px;margin:5px 0}

/* ── 首屏 ── */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 380px at 12% -10%,rgba(0,212,200,.20),transparent 60%),
  radial-gradient(760px 420px at 88% 8%,rgba(10,132,255,.28),transparent 60%),
  linear-gradient(160deg,#071524 0%,#0c2033 55%,#102a41 100%);
  color:#eaf3fb;padding:84px 0 64px}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(70% 60% at 50% 20%,#000,transparent);pointer-events:none}
.hero-inner{position:relative;z-index:1}
.hero-eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.16em;color:#79d9d0;border:1px solid rgba(0,212,200,.4);border-radius:999px;padding:4px 14px;margin:0 0 18px}
.hero h1{font-size:2.5rem;max-width:20em;color:#fff;margin-bottom:.5em}
.hero-sub{max-width:44em;color:#b9cede;font-size:1.05rem}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.btn{display:inline-block;border-radius:10px;padding:12px 22px;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:.2s}
.btn-primary{background:linear-gradient(120deg,#0a84ff,#00b6c9);color:#fff;box-shadow:0 8px 22px rgba(10,132,255,.35)}
.btn-primary:hover{filter:brightness(1.08);text-decoration:none}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#dceaf6}
.btn-ghost:hover{background:rgba(255,255,255,.08);text-decoration:none}
.hero-stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:0;padding:0}
.hero-stats li{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-sm);padding:16px 18px}
.hero-stats b{display:block;font-size:1.7rem;color:#fff;line-height:1.2}
.hero-stats b i{font-style:normal;font-size:.85rem;margin-left:4px;color:#9fc4dd}
.hero-stats span{display:block;font-size:.88rem;color:#cfe0ef;margin-top:2px}
.hero-stats em{display:block;font-style:normal;font-size:.78rem;color:#8aa6bd;margin-top:6px}

/* ── 通用区块 ── */
.section{padding:64px 0}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-title{font-size:1.6rem;margin-bottom:.4em}
.section-title::before{content:"";display:block;width:44px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2));margin-bottom:14px}
.section-note{color:var(--muted);font-size:.92rem;margin-bottom:18px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.more{font-size:.9rem;color:var(--accent)}
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cap-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:.2s}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.cap-card h3{margin-bottom:.4em}
.cap-card p{color:var(--text-2);font-size:.94rem;margin:0}

/* ── 表格 ── */
.table-scroll{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
table.spec{border-collapse:collapse;width:100%;font-size:.92rem;min-width:720px}
table.spec caption{caption-side:top;text-align:left;padding:14px 18px;color:var(--muted);font-size:.88rem}
table.spec th,table.spec td{border-bottom:1px solid var(--line);padding:12px 16px;text-align:left;vertical-align:top}
table.spec thead th{background:#eef4fa;color:var(--ink-2);white-space:nowrap;font-size:.88rem}
table.spec tbody tr:hover{background:#f6fbff}
table.spec td:first-child{font-weight:600;color:var(--ink-2)}

/* ── 面包屑 ── */
.breadcrumb{background:var(--surface);border-bottom:1px solid var(--line);font-size:.85rem}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:12px 24px;max-width:var(--wrap);margin:0 auto}
.breadcrumb a{color:var(--text-2)}
.breadcrumb .sep{color:var(--line-2);margin:0 4px}
.breadcrumb [aria-current="page"]{color:var(--muted)}

/* ── 列表页 ── */
.cat-wrap{display:grid;grid-template-columns:240px 1fr;gap:32px;padding-top:28px;padding-bottom:56px;align-items:start}
.cat-side{position:relative}
.cat-content h1{font-size:1.9rem}
.list-intro{color:var(--text-2);max-width:52em}
.cat-drawer{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.cat-drawer-summary{display:none}
ul.category-list{list-style:none;margin:0;padding:8px}
ul.category-list li{margin:0}
ul.category-list a{display:flex;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:8px;color:var(--text-2);font-size:.95rem}
ul.category-list a:hover{background:#eef4fa;color:var(--ink);text-decoration:none}
ul.category-list a.active{background:linear-gradient(120deg,rgba(10,132,255,.14),rgba(0,212,200,.12));color:var(--ink);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.cat-count{color:var(--muted);font-size:.82rem}
.item-list{display:grid;gap:16px;margin-top:8px}
.home-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.item-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);transition:.2s}
.item-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.item-cat{display:inline-block;font-size:.76rem;letter-spacing:.06em;color:var(--accent);background:rgba(10,132,255,.1);border-radius:6px;padding:2px 8px;margin:0 0 10px}
.item-card h2,.item-card h3{margin-bottom:.35em}
.item-card h2 a,.item-card h3 a{color:var(--ink)}
.item-sum{color:var(--text-2);font-size:.94rem;margin-bottom:.6em}
.item-tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.item-params{display:flex;flex-wrap:wrap;gap:8px;margin:0;font-size:.82rem;color:var(--muted)}
.item-params span{background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:2px 8px}
.tag-text{display:inline-block;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:3px 12px;font-size:.82rem;color:var(--text-2);margin:0 6px 6px 0}
.hero-tags .tag-text{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#cfe0ef}
.pagination{display:flex;gap:14px;align-items:center;margin-top:24px;font-size:.9rem}
.pagination a{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px 14px}
.pagination .off{color:var(--muted);border:1px dashed var(--line-2);border-radius:8px;padding:8px 14px}
.page-state{color:var(--muted)}

/* ── 详情页 ── */
.detail-wrap{display:grid;grid-template-columns:760px 240px;gap:32px;justify-content:center;padding-top:28px;padding-bottom:56px;align-items:start}
.detail-main{min-width:0}
.article-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:36px 40px;box-shadow:var(--shadow)}
.article-body h1{font-size:2rem;margin-bottom:.4em}
.detail-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.84rem;color:var(--muted);margin-bottom:20px}
.detail-meta time{color:var(--muted)}
.cat-chip,.chip{background:rgba(10,132,255,.1);color:#0a5fb8;border-radius:6px;padding:2px 10px;font-size:.8rem}
.chip{background:var(--surface-2);border:1px solid var(--line);color:var(--text-2)}
.lead-figure{margin:0 0 24px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.lead-figure img{width:100%}
.lead-figure figcaption{font-size:.82rem;color:var(--muted);padding:8px 12px;background:var(--surface)}
.article-body h2{font-size:1.28rem;margin-top:1.6em;padding-top:.2em}
.article-body h3{font-size:1.06rem;margin-top:1.3em}
.article-body blockquote{margin:0 0 1.2em;padding:14px 18px;border-left:4px solid var(--accent);background:#f2f8ff;border-radius:0 10px 10px 0;color:var(--text-2)}
.article-body blockquote.abstract{background:linear-gradient(120deg,#f2f8ff,#f0fffd);border-left-color:var(--accent-2);font-size:1rem}
.article-body blockquote.conclusion{background:#fff8ec;border-left-color:var(--gold)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table.spec{margin:0 0 1.4em;min-width:auto}
.article-body ul,.article-body ol{margin-bottom:1.1em}
.article-body li{margin-bottom:.35em}
.case-callout{margin:26px 0;padding:18px 20px;border:1px dashed var(--line-2);border-radius:var(--radius-sm);background:#f7fbfd}
.case-callout h2{font-size:1.05rem;color:var(--ink-2);margin-bottom:.4em}
.case-callout p{margin:0;font-size:.95rem;color:var(--text-2)}
.faq-block{margin-top:36px;border-top:1px solid var(--line);padding-top:24px}
.faq-block h2{font-size:1.28rem}
.faq-block details{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;background:var(--surface-2)}
.faq-block details[open]{background:var(--surface);box-shadow:var(--shadow)}
.faq-block summary{cursor:pointer;padding:14px 18px;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq-block summary::-webkit-details-marker{display:none}
.faq-block summary::after{content:"＋";color:var(--accent);font-weight:700}
.faq-block details[open] summary::after{content:"－"}
.faq-block details p{padding:0 18px 16px;margin:0;color:var(--text-2);font-size:.95rem}
.related{margin-top:32px;border-top:1px solid var(--line);padding-top:22px}
.related h2{font-size:1.2rem}
.related ul{margin:0}
.related li{margin-bottom:.5em;color:var(--text-2);font-size:.95rem}
.tag-row{margin-top:20px}
.toc-aside{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto}
.toc-aside #toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.toc-title{font-size:.9rem;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}
.toc-aside ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc-aside li{margin:0 0 2px}
.toc-aside a{display:block;padding:6px 8px;border-radius:6px;font-size:.88rem;color:var(--text-2);border-left:2px solid transparent}
.toc-aside a:hover{background:#eef4fa;text-decoration:none}
.toc-aside a.active{color:var(--ink);font-weight:600;border-left-color:var(--accent);background:#f2f8ff}

/* ── 归档 / 404 ── */
.archive-content{grid-column:1/-1}
.archive-group{margin-top:26px}
.archive-group h2{font-size:1.15rem;color:var(--ink-2)}
.archive-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px}
.archive-list li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding:8px 0;font-size:.94rem}
.archive-list span{color:var(--muted);font-size:.82rem;white-space:nowrap}
.notfound{padding:80px 24px;text-align:center}
.notfound-links{list-style:none;padding:0;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ── 分类索引 / 页脚 ── */
.cat-index{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cat-index h3{font-size:1.05rem;margin-bottom:.5em}
.pill-list{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}
.pill-list a{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.88rem;color:var(--text-2);background:var(--surface)}
.pill-list a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
.site-footer{background:linear-gradient(180deg,#0b1c2e,#071320);color:#c3d6e6;padding:56px 0 24px;margin-top:40px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.site-footer h2{font-size:1rem;color:#fff;margin-bottom:.6em}
.site-footer p{font-size:.9rem;color:#9fb8cc;margin:0 0 .8em}
.footer-domain{color:#7fa3bf;font-size:.84rem}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:.35em}
.footer-links a{color:#b7cddf;font-size:.9rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{margin:0;font-size:.82rem;color:#7fa3bf}

/* ── 右侧胶囊 ── */
.side-capsule{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;display:flex;flex-direction:column;gap:12px}
.capsule-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:62px;padding:12px 6px;border:none;border-radius:999px;cursor:pointer;
  background:linear-gradient(160deg,#0a84ff,#00b6c9);color:#fff;box-shadow:0 10px 26px rgba(10,132,255,.34);font-size:.72rem;line-height:1.2;transition:.2s}
.capsule-btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(10,132,255,.42)}
.capsule-btn svg{width:22px;height:22px;fill:currentColor}
.capsule-btn span{letter-spacing:.02em}

/* ── 名片弹层 ── */
.wechat-modal{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;padding:20px}
.wechat-modal[hidden]{display:none}
.wechat-backdrop{position:absolute;inset:0;background:rgba(5,15,26,.72);backdrop-filter:blur(3px)}
.wechat-card{position:relative;width:340px;max-width:100%;background:var(--surface);border-radius:18px;box-shadow:var(--shadow-2);overflow:hidden;animation:pop .18s ease-out}
@keyframes pop{from{transform:translateY(10px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.wechat-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.wechat-head h2{font-size:1rem;margin:0}
.wechat-close{background:none;border:none;font-size:1.5rem;line-height:1;color:var(--muted);cursor:pointer}
.wechat-body{padding:16px;display:flex;justify-content:center;background:var(--surface-2)}
.wechat-img{width:300px;height:500px;object-fit:contain;border-radius:10px;background:#fff}
.wechat-foot{margin:0;padding:12px 18px 16px;font-size:.82rem;color:var(--muted);text-align:center}

/* ── 响应式 ── */
@media (max-width:1180px){
  .detail-wrap{grid-template-columns:1fr;justify-content:stretch}
  .toc-aside{position:static;max-height:none;overflow:visible;order:-1}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .site-nav{display:none;margin:0}
  .site-nav.open{display:block;position:absolute;left:0;right:0;top:72px;background:#0b1f33;border-bottom:1px solid rgba(255,255,255,.1);padding:10px 24px 16px}
  .site-nav.open ul{flex-direction:column}
  .nav-toggle{display:flex}
  .cat-wrap{grid-template-columns:1fr}
  .cat-drawer-summary{display:flex;align-items:center;justify-content:space-between;cursor:pointer;padding:14px 18px;font-weight:600;color:var(--ink);background:var(--surface)}
  .cat-drawer-summary::after{content:"＋";color:var(--accent)}
  .cat-drawer[open] .cat-drawer-summary::after{content:"－"}
  .home-grid,.archive-list,.cat-index,.footer-inner{grid-template-columns:1fr}
  .article-body{padding:24px 20px}
  .hero{padding:56px 0 44px}
  .hero h1{font-size:1.8rem}
  .side-capsule{right:10px}
  .capsule-btn{width:56px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none !important;transition:none !important}
}