/* ===== 伺服注塑机 · 科技深色主题 ===== */
:root{
  --bg:#0a0e16;
  --bg-2:#0d1320;
  --surface:#121a28;
  --surface-2:#16202f;
  --border:#223044;
  --border-2:#2c3c52;
  --text:#e6edf3;
  --muted:#93a4b8;
  --accent:#22d3ee;
  --accent-2:#3b82f6;
  --accent-3:#7c3aed;
  --ok:#34d399;
  --h2-inset:16px;     /* 文章/列表/产品：面包屑与 H2 左缘对齐 */
  --page-inset:48px;   /* 页面卡片：面包屑与 H1 左缘对齐 */
  --radius:14px;
  --maxw:1080px;
  --header-h:64px;
  font-synthesis:none;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(34,211,238,.10),transparent 60%),
    radial-gradient(1000px 500px at -10% 10%,rgba(124,58,237,.10),transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.35;font-weight:700;color:#fff}
h2{font-size:1.5rem;margin:2.2rem 0 1rem;padding-bottom:.4rem;border-bottom:1px solid var(--border)}
h3{font-size:1.2rem;margin:1.6rem 0 .8rem;color:#cfe9f5}
p{margin:.7rem 0}
ul,ol{padding-left:1.4rem}
code{background:var(--surface-2);padding:.1rem .4rem;border-radius:6px;font-size:.9em;color:#9fe9f7}
blockquote{
  margin:1.2rem 0;padding:.9rem 1.1rem;
  background:linear-gradient(90deg,rgba(34,211,238,.10),rgba(34,211,238,.02));
  border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:#d6e6f2;
}
table{border-collapse:collapse;width:100%;margin:1.2rem 0;font-size:.95rem}
table th,table td{
  border:1px solid var(--border-2);padding:.6rem .8rem;text-align:left;vertical-align:top;
}
table thead,table.data thead,table.spec thead{background:var(--surface-2)}
table th,table.data th,table.spec th{color:#bfe9f7;font-weight:600}
table.data,table.spec{border:1px solid var(--border-2)}
table tbody tr:nth-child(even){background:rgba(255,255,255,.015)}
/* 移动端表格横向滚动，避免挤压变形 */
.entry table{display:block;overflow-x:auto;white-space:normal}

/* ===== 头部 ===== */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:50;
  background:rgba(10,14,22,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{max-width:var(--maxw);margin:0 auto;height:100%;display:flex;align-items:center;gap:1.2rem;padding:0 16px}
.brand{display:flex;align-items:center;gap:.5rem;color:#fff;font-weight:800;font-size:1.05rem}
.brand:hover{text-decoration:none}
.brand-mark{color:var(--accent);font-size:1.3rem}
.site-nav{flex:1}
.nav-list{display:flex;gap:.3rem;list-style:none;margin:0;padding:0;justify-content:flex-end;flex-wrap:wrap}
.nav-item{position:relative}
.nav-item>a{display:block;padding:.5rem .85rem;border-radius:8px;color:var(--muted);font-size:.95rem}
.nav-item>a:hover{color:#fff;background:var(--surface)}
.has-child>.sub-nav{display:none;position:absolute;top:100%;left:0;min-width:180px;
  background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:.4rem;box-shadow:0 12px 30px rgba(0,0,0,.4)}
.has-child:hover>.sub-nav{display:block}
.sub-nav{list-style:none;margin:0;padding:.4rem}
.sub-nav a{display:block;padding:.45rem .7rem;border-radius:7px;color:var(--muted);font-size:.9rem}
.sub-nav a:hover{background:var(--surface-2);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--border);color:var(--text);font-size:1.2rem;border-radius:8px;padding:.2rem .6rem}

/* ===== 容器/对齐 ===== */
.container{max-width:var(--maxw);margin:0 auto}
.article-wrap,.list-wrap{padding:calc(var(--header-h) + 24px) 16px 0 var(--h2-inset)}
.page-wrap{padding:calc(var(--header-h) + 24px) var(--page-inset) 0 var(--page-inset)}
.home-wrap{padding:calc(var(--header-h) + 8px) 16px 0}

/* ===== 面包屑 ===== */
.breadcrumb-nav{margin:0 0 1.1rem;font-size:.85rem;color:var(--muted)}
.breadcrumb{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;margin:0;padding:0}
.breadcrumb li::after{content:"›";margin-left:.4rem;color:#54657a}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li[aria-current="page"]{color:#cdd9e6}

/* ===== 详情布局 ===== */
.detail-layout{display:flex;gap:40px;align-items:flex-start}
.detail-main{flex:1;min-width:0;max-width:760px}
.toc-aside{width:240px;flex:0 0 240px;order:2;position:sticky;top:calc(var(--header-h) + 20px);
  max-height:calc(100vh - var(--header-h) - 40px);overflow:auto}
.toc-nav{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:.9rem 1rem}
.toc-title{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.5rem}
.toc-list{list-style:none;margin:0;padding:0;font-size:.88rem}
.toc-list li{margin:.2rem 0}
.toc-h2 a{color:#dbe7f2}
.toc-h3 a{display:block;padding-left:1rem}
.toc-h3 a{color:var(--muted)}
.toc-list a:hover{color:var(--accent);text-decoration:none}

.entry-title{font-size:2rem;margin:.2rem 0 1.2rem;line-height:1.25}
.entry>p:first-of-type{font-size:1.02rem}

/* 摘要块 */
.entry>blockquote:first-of-type{font-size:1.02rem;background:linear-gradient(90deg,rgba(34,211,238,.14),rgba(59,130,246,.04));border-left-color:var(--accent-2)}

/* 关键词/标签 */
.keywords{color:var(--muted);font-size:.9rem;margin:.4rem 0 1rem}
.tags{margin-top:1.6rem;display:flex;flex-wrap:wrap;gap:.5rem}
.tag-text{background:var(--surface-2);border:1px solid var(--border);color:#bfe9f7;
  padding:.25rem .7rem;border-radius:999px;font-size:.82rem}

/* 结论块 */
.entry>blockquote:last-of-type,blockquote.conclusion{font-weight:600;color:#eaf6ff}
.callout.case{background:linear-gradient(90deg,rgba(52,211,153,.12),transparent);border-left:3px solid var(--ok);
  border-radius:0 10px 10px 0;padding:.9rem 1.1rem;margin:1.4rem 0}
.callout-tag{display:inline-block;font-size:.72rem;letter-spacing:.1em;color:var(--ok);border:1px solid var(--ok);
  border-radius:6px;padding:.05rem .5rem;margin-bottom:.4rem}

/* FAQ */
.faq{margin:2rem 0}
.faq-title{font-size:1.3rem}
.faq-item{border:1px solid var(--border);border-radius:10px;margin:.6rem 0;background:var(--surface);overflow:hidden}
.faq-item>summary{cursor:pointer;padding:.8rem 1rem;font-weight:600;color:#e6f3fb;list-style:none}
.faq-item>summary::-webkit-details-marker{display:none}
.faq-item>summary::before{content:"+";color:var(--accent);margin-right:.6rem;font-weight:700}
.faq-item[open]>summary::before{content:"−"}
.faq-a{padding:0 1rem .9rem;color:#cdd9e6}

/* 相关阅读 */
.related{margin:2rem 0;padding-top:1rem;border-top:1px solid var(--border)}
.related h2,.related h3{font-size:1.2rem}
.related li{margin:.4rem 0}

/* ===== 列表/卡片 ===== */
.list-layout{display:flex;gap:40px;align-items:flex-start}
.cat-side{width:200px;flex:0 0 200px;position:sticky;top:calc(var(--header-h) + 20px)}
.category-list{list-style:none;margin:0;padding:0;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface)}
.category-list li a{display:block;padding:.7rem 1rem;color:var(--muted);border-bottom:1px solid var(--border)}
.category-list li:last-child a{border-bottom:none}
.category-list li a:hover,.category-list li a.active{background:var(--surface-2);color:#fff;text-decoration:none}
.cat-content{flex:1;min-width:0}
.list-title{font-size:1.8rem;margin:.2rem 0 1rem}
.cat-desc{color:var(--muted);margin-bottom:1.2rem}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.list-cards{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.1rem 1.2rem;transition:.2s;color:var(--text)}
.card:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none;box-shadow:0 10px 30px rgba(34,211,238,.08)}
.card-cat{display:inline-block;font-size:.72rem;color:var(--accent);border:1px solid var(--border-2);
  border-radius:6px;padding:.05rem .5rem;margin-bottom:.5rem}
.card h3{font-size:1.05rem;margin:.2rem 0 .5rem}
.card p{color:var(--muted);font-size:.9rem;margin:0}

/* ===== 首页 ===== */
.hero{position:relative;padding:3.5rem 16px 2.5rem;max-width:var(--maxw);margin:0 auto}
.hero-inner{background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(124,58,237,.08));
  border:1px solid var(--border);border-radius:20px;padding:2.4rem;overflow:hidden}
.hero-tag{display:inline-block;font-size:.78rem;letter-spacing:.12em;color:var(--accent);
  border:1px solid var(--accent);border-radius:999px;padding:.2rem .8rem;margin-bottom:1rem}
.hero-title{font-size:2.4rem;margin:.2rem 0 1rem;background:linear-gradient(90deg,#fff,#9fe9f7);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);max-width:720px;font-size:1.05rem}
.hero-actions{display:flex;gap:.8rem;margin:1.4rem 0}
.btn{display:inline-block;padding:.7rem 1.4rem;border-radius:10px;font-weight:600;font-size:.95rem;cursor:pointer}
.btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#04121a;border:none}
.btn-primary:hover{text-decoration:none;filter:brightness(1.08)}
.btn-ghost{border:1px solid var(--border-2);color:var(--text)}
.btn-ghost:hover{text-decoration:none;border-color:var(--accent)}
.hero-stats{display:flex;gap:2rem;list-style:none;margin:1.6rem 0 0;padding:0;flex-wrap:wrap}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats b{font-size:1.5rem;color:var(--accent)}
.hero-stats span{color:var(--muted);font-size:.82rem}
.section{max-width:var(--maxw);margin:2.4rem auto;padding:0 16px}
.section-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--border);padding-bottom:.6rem;margin-bottom:1.2rem}
.section-head h2{margin:0;border:none;padding:0}
.section-head a{color:var(--muted);font-size:.9rem}

/* ===== 页脚 ===== */
.site-footer{margin-top:3rem;border-top:1px solid var(--border);background:var(--bg-2)}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:flex;gap:2rem;flex-wrap:wrap;padding:2.4rem 16px 1rem}
.footer-col{flex:1;min-width:200px}
.footer-col h4{color:#bfe9f7;font-size:.95rem;margin:.2rem 0 .8rem}
.footer-col a{display:block;color:var(--muted);padding:.2rem 0;font-size:.9rem}
.footer-col a:hover{color:var(--accent)}
.footer-desc{color:var(--muted);font-size:.9rem;max-width:320px}
.footer-bottom{border-top:1px solid var(--border);text-align:center;color:var(--muted);font-size:.82rem;padding:1rem 16px}

/* ===== 悬浮胶囊 ===== */
.float-capsule{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;
  display:flex;flex-direction:column;gap:10px}
.cap-btn{width:54px;height:54px;border-radius:27px;border:1px solid var(--border-2);
  background:rgba(18,26,40,.9);backdrop-filter:blur(8px);color:var(--text);cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
  box-shadow:0 8px 24px rgba(0,0,0,.4);transition:.2s}
.cap-btn:hover{border-color:var(--accent);color:var(--accent)}
.cap-ico{font-size:1.2rem;line-height:1}
.cap-txt{font-size:.62rem;color:var(--muted)}

/* ===== 微信名片弹层 ===== */
.wx-mask{position:fixed;inset:0;background:rgba(4,8,14,.78);z-index:80;display:flex;align-items:center;justify-content:center;padding:16px}
.wx-mask[hidden]{display:none}
.wx-modal{position:relative;background:var(--surface);border:1px solid var(--border-2);border-radius:16px;padding:14px;
  box-shadow:0 20px 60px rgba(0,0,0,.6)}
.wx-frame{width:300px;height:500px;display:flex;align-items:center;justify-content:center;background:#0c1320;border-radius:10px;overflow:hidden}
.wx-frame img{width:300px;height:500px;object-fit:contain;display:block;image-rendering:auto}
.wx-close{position:absolute;top:-12px;right:-12px;width:34px;height:34px;border-radius:50%;border:none;
  background:var(--accent);color:#04121a;font-size:1.2rem;cursor:pointer;line-height:1}
.wx-tip{text-align:center;color:var(--muted);font-size:.82rem;margin:.7rem 0 0}

/* ===== 归档 ===== */
.archive-list{list-style:none;padding:0;margin:1rem 0}
.archive-list li{padding:.5rem 0;border-bottom:1px solid var(--border);font-size:.95rem}
.archive-list time{color:var(--accent);margin-right:.8rem;font-variant-numeric:tabular-nums}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .detail-layout,.list-layout{flex-direction:column}
  .toc-aside,.cat-side{width:100%;position:static;order:0}
  .detail-main,.cat-content{max-width:none}
}
@media (max-width:760px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;top:var(--header-h);left:0;right:0;background:var(--bg-2);
    border-bottom:1px solid var(--border);display:none;padding:.6rem 16px}
  .site-nav.open{display:block}
  .nav-list{flex-direction:column;align-items:stretch}
  .has-child>.sub-nav{position:static;display:block;box-shadow:none;border:none;background:transparent;padding-left:1rem}
  .sub-nav a{color:#cdd9e6}
  .article-wrap,.list-wrap{padding-left:16px}
  .page-wrap{padding-left:20px;padding-right:20px}
  .hero-title{font-size:1.8rem}
  .float-capsule{right:10px}
  .cap-btn{width:48px;height:48px}
}