:root{
--navy:#0F172A;--navy2:#1E293B;--bg:#F8FAFC;--accent:#2563EB;--accent-dark:#1E40AF;
--text:#0F172A;--muted:#64748B;--border:#E2E8F0;--card:#fff;--radius:12px;
--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.8;font-size:16px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(2,6,23,.35)}
.header-inner{max-width:1100px;margin:0 auto;padding:0 20px;min-height:64px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;padding:10px 0}
.brand:hover{text-decoration:none}
.logo-badge{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#60A5FA);display:inline-flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;color:#fff;flex:none}
.main-nav{display:flex;gap:4px;flex-wrap:wrap;padding:8px 0}
.main-nav a{color:#CBD5E1;padding:8px 14px;border-radius:8px;font-size:15px}
.main-nav a:hover{background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
.main-nav a.active{background:var(--accent);color:#fff}
.hero{background:linear-gradient(180deg,var(--navy) 0%,#17233d 100%);color:#fff;padding:72px 20px 64px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(96,165,250,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(96,165,250,.08) 1px,transparent 1px);background-size:36px 36px;pointer-events:none}
.hero-inner{max-width:1100px;margin:0 auto;position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.eyebrow{font-family:var(--mono);color:#93C5FD;font-size:13px;letter-spacing:2px;margin-bottom:14px}
.hero h1{font-size:44px;line-height:1.3;margin-bottom:14px}
.hero h1 .hl{color:#60A5FA}
.hero-sub{color:#CBD5E1;font-size:17px;max-width:560px;margin-bottom:28px}
.hero-actions{margin-bottom:8px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 28px;border-radius:10px;font-weight:600}
.btn:hover{background:var(--accent-dark);color:#fff;text-decoration:none}
.btn-ghost{background:transparent;border:1px solid #475569;color:#E2E8F0;margin-left:12px}
.btn-ghost:hover{border-color:#93C5FD;color:#fff;background:rgba(255,255,255,.06);text-decoration:none}
.hero-stats{margin-top:26px;color:#94A3B8;font-size:13.5px;font-family:var(--mono)}
.terminal{background:#020617;border:1px solid #1E293B;border-radius:12px;padding:20px 22px;font-family:var(--mono);font-size:13.5px;line-height:2.1;color:#86EFAC;box-shadow:0 24px 60px rgba(0,0,0,.4);overflow-x:auto}
.terminal .p{color:#475569}
.terminal .ok{color:#38BDF8}
.terminal .warn{color:#FBBF24}
.section{max-width:1100px;margin:0 auto;padding:56px 20px 8px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:8px}
.section-head h2{font-size:26px}
.section-head p{color:var(--muted);font-size:14.5px}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;display:block;color:var(--text);transition:transform .15s,box-shadow .15s;position:relative;overflow:hidden}
.cat-card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:0 14px 30px rgba(37,99,235,.12)}
.cat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),#60A5FA)}
.cat-code{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:1px;margin-bottom:10px}
.cat-card h3{font-size:19px;margin-bottom:8px}
.cat-card p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:14px}
.cat-count{font-size:13px;color:var(--accent);font-weight:600}
.post-list{display:flex;flex-direction:column;gap:14px}
.post-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;display:block;color:var(--text)}
.post-item:hover{text-decoration:none;border-color:#BFDBFE;box-shadow:0 8px 22px rgba(37,99,235,.08)}
.post-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:6px;flex-wrap:wrap}
.tag{background:#EFF6FF;color:var(--accent-dark);border-radius:6px;padding:2px 10px;font-size:12.5px;font-weight:600}
.post-item h3{font-size:18px;margin-bottom:6px;color:var(--text)}
.post-item p{font-size:14.5px;color:var(--muted);line-height:1.7}
.tool-teaser{margin:56px 20px 0;background:linear-gradient(120deg,var(--navy),#1d3358);border-radius:16px;color:#fff;padding:40px;max-width:1060px;margin-left:auto;margin-right:auto;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.tool-teaser h2{font-size:23px;margin-bottom:8px}
.tool-teaser p{color:#CBD5E1;font-size:15px;max-width:640px}
.page-hero{background:var(--navy);color:#fff;padding:52px 20px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(96,165,250,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(96,165,250,.08) 1px,transparent 1px);background-size:36px 36px}
.page-hero-inner{max-width:860px;margin:0 auto;position:relative}
.page-hero .eyebrow{margin-bottom:10px}
.page-hero h1{font-size:34px;line-height:1.4;margin-bottom:10px}
.page-hero p{color:#CBD5E1;font-size:16px}
.container{max-width:860px;margin:0 auto;padding:40px 20px 64px}
.breadcrumb{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.article{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 44px}
.article h1{font-size:30px;line-height:1.45;margin-bottom:14px}
.article-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);padding-bottom:20px;margin-bottom:8px;border-bottom:1px solid var(--border)}
.article-body{font-size:16.5px}
.article-body>p:first-of-type{font-size:17.5px;color:#1E293B;background:#F1F5F9;border-radius:10px;padding:18px 20px;margin-bottom:28px}
.article-body h2{font-size:23px;margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.5}
.article-body h3{font-size:18.5px;margin:26px 0 10px;color:#1E293B}
.article-body p{margin:0 0 15px;color:#334155}
.article-body ul,.article-body ol{margin:0 0 16px 24px;color:#334155}
.article-body li{margin-bottom:7px}
.article-body strong{color:var(--text)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;display:block;overflow-x:auto}
.article-body thead{display:table-header-group}
.article-body tbody{display:table-row-group}
.article-body tr{display:table-row}
.article-body th,.article-body td{display:table-cell}
.article-body th{background:var(--navy);color:#fff;padding:10px 14px;text-align:left;white-space:nowrap}
.article-body td{border:1px solid var(--border);padding:10px 14px;vertical-align:top}
.article-body tr:nth-child(even) td{background:#F8FAFC}
.related{margin-top:44px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 28px}
.related h2{font-size:19px;margin-bottom:14px}
.related ul{list-style:none}
.related li{margin-bottom:10px;padding-left:22px;position:relative}
.related li::before{content:"→";position:absolute;left:0;color:var(--accent)}
.prose h2{font-size:22px;margin:34px 0 12px;padding-left:14px;border-left:4px solid var(--accent)}
.prose h3{font-size:18px;margin:24px 0 10px}
.prose p,.prose li{color:#334155}
.prose p{margin-bottom:14px}
.prose ul,.prose ol{margin:0 0 16px 24px}
.prose li{margin-bottom:7px}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.prose th{background:var(--navy);color:#fff;padding:10px 14px;text-align:left}
.prose td{border:1px solid var(--border);padding:10px 14px}
.check-table td:first-child{font-weight:600;white-space:nowrap}
.cta-box{background:linear-gradient(120deg,#EFF6FF,#DBEAFE);border:1px solid #BFDBFE;border-radius:var(--radius);padding:28px;margin-top:32px;text-align:center}
.cta-box h3{font-size:20px;margin-bottom:8px}
.cta-box p{color:#475569;font-size:15px;margin-bottom:18px}
.site-footer{background:var(--navy);color:#94A3B8;margin-top:64px}
.footer-inner{max-width:1100px;margin:0 auto;padding:44px 20px 28px}
.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:20px;color:#E2E8F0}
.footer-brand p{font-size:13.5px;color:#94A3B8}
.footer-nav{display:flex;gap:20px;margin-bottom:20px;flex-wrap:wrap}
.footer-nav a{color:#94A3B8;font-size:14.5px}
.footer-nav a:hover{color:#fff}
.copyright{font-size:13px;border-top:1px solid #1E293B;padding-top:20px}
.article-figure{margin:26px 0;text-align:center}
.article-figure img{border:1px solid var(--border);border-radius:10px;box-shadow:0 6px 18px rgba(15,23,42,.08);height:auto}
.article-figure figcaption{font-size:13.5px;color:var(--muted);margin-top:10px;line-height:1.6}
.photo-slot{margin:26px 0}
.photo-slot-box{border:2px dashed #93C5FD;background:#EFF6FF;border-radius:10px;padding:44px 20px;text-align:center;color:#1E40AF;font-size:16px;font-weight:600}
.photo-slot figcaption{font-size:13.5px;color:var(--muted);margin-top:10px;text-align:center;line-height:1.6}
.data-card{margin:26px 0;padding:20px 24px;border:2px solid #94a3b8;border-radius:12px;background:#f8fafc}
.data-card-title{font-weight:800;font-size:16px;margin:0 0 6px}
.data-card-meta{font-size:13.5px;color:#64748b;margin:0 0 12px}
.data-card-meta a{color:#2563eb}
.data-card-rows{display:grid;grid-template-columns:1fr 1fr;gap:4px 24px;margin:0 0 12px}
.data-card-row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed #e2e8f0;padding:7px 0;font-size:14.5px}
.data-card-row span{color:#475569}
.data-card-foot{font-size:13px;color:#94a3b8;margin:0}
@media(max-width:640px){.data-card-rows{grid-template-columns:1fr}}
@media(max-width:860px){
.hero-inner{grid-template-columns:1fr}
.hero h1{font-size:32px}
.hero{padding:52px 20px 48px}
.cat-grid{grid-template-columns:repeat(2,1fr)}
.article{padding:28px 22px}
.article h1{font-size:24px}
.tool-teaser{padding:28px}
}
@media(max-width:560px){
.cat-grid{grid-template-columns:1fr}
.main-nav a{padding:8px 10px;font-size:14px}
.section-head h2{font-size:22px}
}