:root{--w:1180px;--bg:#f8fafc;--card:#ffffff;--border:#e5e7eb;--text:#0f172a;--muted:#475569;--brand:#7c3aed;--brand-700:#6d28d9;--accent:#2563eb;--accent-700:#1d4ed8;--chip:#f1f5f9;--radius:16px;--shadow:0 8px 24px rgba(2,6,23,.08)}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font:14px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
th,td{border:1px solid #ccc;padding:4px;text-align:left}
.top{max-width:var(--w);margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:16px;position:relative}
.brand{font-weight:700}
.nav{margin-left:auto;display:flex;gap:18px;align-items:center;position:relative}
.nav a{color:#0f172a;position:relative;padding:4px 6px;border-radius:6px;transition:background .2s ease}
.nav a:hover{color:var(--accent);background:#eef2ff}
.notice{padding-bottom:20px;font-size:16px}
.dropdown{position:relative}
.dropdown:hover .menu,.dropdown:focus-within .menu{display:block}
.menu{display:none;position:absolute;top:100%;right:0;margin-top:0;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);z-index:10;padding:8px 0}
.dropdown::after{content:"";position:absolute;left:0;right:0;top:100%;height:8px}
.menu a{display:block;padding:10px 14px;color:var(--text);white-space:nowrap}
.menu a:hover{background:#f1f5f9;color:var(--accent)}
.hero{padding:56px 0;background:#ffffff}
.hero .wrap{max-width:var(--w);margin:0 auto;text-align:center;padding:0 20px}
.hero h1{font-size:42px;margin:0 0 10px 0}
.hero h1 span{color:var(--brand)}
.hero .sub{color:var(--muted);margin-bottom:16px}
.promo{display:inline-flex;gap:14px;align-items:center;background:linear-gradient(90deg,#ede9fe,#f5f3ff);color:#1f2937;border:1px solid #e5e7eb;border-radius:12px;padding:12px 16px;box-shadow:var(--shadow)}
.promo em{background:var(--brand);color:#fff;border-radius:10px;padding:6px 10px;font-style:normal}
.promo:hover em{background:var(--brand-700)}
.breadcrumb{font-size:13px;color:var(--muted);padding:16px 0;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--accent);transition:color .2s}
.breadcrumb a:hover{color:var(--accent-700)}
.breadcrumb span{color:var(--muted)}
.detail{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.detail-header{display:flex;justify-content:space-between;align-items:flex-start;padding:32px;border-bottom:1px solid var(--border);gap:24px}
.header-main{display:flex;gap:20px;flex:1}
.detail-header .logo{flex-shrink:0}
.detail-header .logo img{width:80px;height:80px;border-radius:16px;object-fit:contain}
.header-info{flex:1}
.header-info h1{font-size:28px;margin:0 0 12px 0;line-height:1.3}
.header-info .summary{color:var(--muted);margin:0 0 16px 0;line-height:1.6;font-size:15px}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:12px;color:#6366f1;padding:0 12px 0 0;font-weight:600}
.header-action{display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;padding:12px 24px;border-radius:10px;font-weight:600;transition:all .2s ease;border:none;cursor:pointer;white-space:nowrap}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 4px 12px rgba(124,58,237,0.3)}
.price-tag{font-size:13px;background:#fff7ed;border:1px solid #fed7aa;color:#b45309;border-radius:8px;padding:6px 12px;font-weight:600;white-space:nowrap}
.detail-content{padding:40px 32px;line-height:1.8;font-size:15px}
.detail-content h2{font-size:22px;margin:32px 0 16px 0;padding-bottom:8px;border-bottom:2px solid var(--chip)}
.detail-content h3{font-size:18px;margin:24px 0 12px 0;color:var(--text)}
.detail-content p{margin:12px 0;color:var(--text)}
.detail-content ul,.detail-content ol{margin:12px 0 12px 24px}
.detail-content li{margin:8px 0;color:var(--text)}
.detail-content strong{font-weight:600;color:var(--text)}
.detail-content a{color:var(--accent);text-decoration:underline}
.detail-content a:hover{color:var(--accent-700)}
.detail-content img{max-width:100%;height:auto;border-radius:12px;margin:16px 0}
.related-tools{padding:32px;background:var(--chip);border-top:1px solid var(--border)}
.related-tools h2{font-size:20px;margin:0 0 20px 0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.section{max-width:var(--w);margin:32px auto;padding:0 20px}
.section > h2{font-size:20px;margin:0 0 16px 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool-card{cursor:pointer;transition:transform 0.2s;border:1px solid var(--border);border-radius:var(--radius);padding:14px}
.tool-card:hover{transform:translateY(-2px)}
.tool-card-link{display:block;color:inherit;text-decoration:none;transition:transform .15s ease,box-shadow .2s ease}
.tool-card-link:hover .tool-card{box-shadow:0 12px 28px rgba(2,6,23,.12);transform:translateY(-2px)}
.featured .tool-card{background:#f5f3ff;border-color:#ddd6fe}
.featured .tool-card:hover{transform:scale(1.05);border-color:var(--brand);box-shadow:0 4px 12px rgba(99,102,241,0.3)}
.section:not(.featured) .tool-card{background:#ffffffcc;border-color:#f1f5f9}
.section:not(.featured) .tool-card:hover{background:#f8fafc}
.tool-head{display:flex;gap:8px;align-items:flex-start}
.logo img{width:56px;height:56px;border-radius:12px;object-fit:contain}
.meta .title{font-size:16px;margin:0 0 6px 0}
.meta .desc{color:var(--muted);margin:0;font-size:13px}
.tool-card-link:hover .ext-icon{opacity:1;color:var(--accent)}
.tool-foot{margin-top:10px;display:flex;justify-content:space-between;align-items:center}
.price{font-size:12px;background:#fff7ed;border:1px solid #fed7aa;color:#b45309;border-radius:999px;padding:2px 8px;white-space:nowrap}
.chips{display:flex;gap:12px;flex-wrap:wrap}
.cat-chip{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:10px 14px;box-shadow:var(--shadow)}
.cat-chip em{font-style:normal;background:var(--chip);color:#334155;border-radius:999px;padding:2px 8px}
.qr-modal{display:none;position:fixed;z-index:9999;left:0;top:0;width:100%;height:100%;background-color:rgba(0,0,0,0.6);animation:fadeIn 0.3s}
.qr-modal-content{position:relative;background-color:#fff;margin:10% auto;padding:30px;width:90%;max-width:400px;border-radius:12px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,0.3);animation:slideDown 0.3s}
.qr-close{position:absolute;right:15px;top:10px;font-size:32px;font-weight:bold;color:#999;cursor:pointer;transition:color 0.2s}
.qr-close:hover{color:#333}
.qr-modal-content h3{margin:0 0 20px 0;color:#333;font-size:20px}
.qr-code{margin:20px 0;padding:15px;background:#f9f9f9;border-radius:8px;display:inline-block}
.qr-code img{display:block;width:130px;}
.qr-tip{color:#666;font-size:14px;margin:10px 0 0 0}
@keyframes fadeIn{from{opacity:0}
to{opacity:1}
}@keyframes slideDown{from{transform:translateY(-50px);opacity:0}
to{transform:translateY(0);opacity:1}
}.footer{text-align:center;font-size:13px;color:#98a2b3;margin-top:36px;padding:24px 0}
@media (max-width:1024px){.grid,.related-grid{grid-template-columns:repeat(2,1fr)}
.detail-header{flex-direction:column}
.header-action{width:100%;flex-direction:row;justify-content:flex-start}
}@media (max-width:640px){.grid,.related-grid{grid-template-columns:1fr}
.hero h1{font-size:28px}
.detail-header{padding:20px}
.header-main{flex-direction:column}
.detail-content{padding:24px 20px}
.related-tools{padding:20px}
.header-info h1{font-size:22px}
}