:root{--brand:#1e6fd9;--brand-dark:#1558ab;--brand-light:#e8f1fc;--brand-50:#f0f6ff;--accent:#f59e0b;--accent-dark:#d97706;--success:#10b981;--danger:#ef4444;--bg-body:#f5f7fa;--bg-card:#fff;--text-primary:#1a202c;--text-secondary:#4a5568;--text-muted:#a0aec0;--border:#e2e8f0;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 2px 8px rgba(0,0,0,.08);--shadow-lg:0 4px 16px rgba(0,0,0,.1);--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--max-w:1140px;--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg-body);color:var(--text-primary);line-height:1.6}
a{color:var(--text-primary);text-decoration:none;transition:color .15s}a:hover{color:var(--brand)}
img{max-width:100%;height:auto}ul,ol{list-style:none}
.container{max-width:var(--max-w);margin:0 auto;padding:0 16px}
.grid{display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-8{grid-template-columns:repeat(4,1fr)}
.header{background:var(--bg-card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-size:22px;font-weight:800;color:var(--brand)}.logo span{color:var(--accent)}
.header-actions{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-secondary)}
.header-phone{color:var(--brand);font-weight:600}
.nav{background:var(--brand)}.nav-inner{display:flex;gap:0;overflow-x:auto;-webkit-overflow-scrolling:touch}.nav-inner::-webkit-scrollbar{display:none}
.nav a{display:block;padding:10px 18px;font-size:14px;color:rgba(255,255,255,.85);white-space:nowrap;transition:background .15s}
.nav a:hover,.nav a.active{background:rgba(255,255,255,.15);color:#fff}.nav a.active{font-weight:600;border-bottom:2px solid #fff}
.search-bar{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);padding:24px 0}
.search-bar .container{text-align:center}.search-bar h1{color:#fff;font-size:22px;font-weight:700;margin-bottom:16px}
.search-form{display:flex;max-width:560px;margin:0 auto}
.search-form input{flex:1;padding:12px 18px;border:none;border-radius:var(--radius-md) 0 0 var(--radius-md);font-size:15px;outline:none}
.search-form button{padding:12px 28px;background:var(--accent);color:#fff;border:none;border-radius:0 var(--radius-md) var(--radius-md) 0;font-size:15px;font-weight:600;cursor:pointer}
.search-form button:hover{background:var(--accent-dark)}
.hot-keywords{margin-top:12px;font-size:12px;color:rgba(255,255,255,.7)}.hot-keywords a{color:rgba(255,255,255,.9);margin:0 8px}.hot-keywords a:hover{color:#fff;text-decoration:underline}
.breadcrumb{padding:12px 0;font-size:13px;color:var(--text-muted)}.breadcrumb a{color:var(--text-secondary)}.breadcrumb a:hover{color:var(--brand)}.breadcrumb span{margin:0 6px}
.card{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow .2s}
.card:hover{box-shadow:var(--shadow-md)}
.card-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.card-header h2{font-size:16px;font-weight:700}.card-header h2::before{content:'';display:inline-block;width:3px;height:16px;background:var(--brand);border-radius:2px;margin-right:8px;vertical-align:-2px}
.card-body{padding:18px}
.section-title{font-size:20px;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--brand);display:inline-block}
.cat-card{display:flex;flex-direction:column;align-items:center;padding:20px 12px;background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);text-align:center;transition:all .2s;cursor:pointer}
.cat-card:hover{border-color:var(--brand);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.cat-icon{width:48px;height:48px;background:var(--brand-light);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:10px;font-size:22px;color:var(--brand);box-shadow:0 2px 8px rgba(30,111,217,.12)}
.cat-card h3{font-size:15px;font-weight:600;margin-bottom:4px}.cat-card p{font-size:12px;color:var(--text-muted);line-height:1.4}
.inst-card{display:flex;gap:16px;padding:16px 18px;border-bottom:1px solid var(--border);transition:background .15s;text-decoration:none;color:inherit}
.inst-card:last-child{border-bottom:none}.inst-card:hover{background:var(--brand-50)}
.inst-logo{width:60px;height:60px;background:var(--brand-light);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--brand);flex-shrink:0}
.inst-info{flex:1;min-width:0}.inst-name{font-size:15px;font-weight:600;margin-bottom:4px;display:flex;align-items:center;gap:6px}
.inst-meta{font-size:13px;color:var(--text-secondary);margin-bottom:4px}.inst-tags{display:flex;gap:6px;flex-wrap:wrap}
.prod-card{padding:16px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-card);transition:all .2s;text-decoration:none;color:inherit;display:block}
.prod-card:hover{border-color:var(--brand);box-shadow:var(--shadow-md)}
.prod-name{font-size:15px;font-weight:600;margin-bottom:6px}.prod-summary{font-size:13px;color:var(--text-secondary);margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.prod-price{font-size:16px;font-weight:700;color:var(--danger)}.prod-meta{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-size:12px;color:var(--text-muted)}
.art-card{padding:14px 18px;border-bottom:1px solid var(--border);transition:background .15s;text-decoration:none;color:inherit;display:block}.art-card:last-child{border-bottom:none}.art-card:hover{background:var(--brand-50)}
.art-title{font-size:15px;font-weight:500;margin-bottom:4px}.art-meta{font-size:12px;color:var(--text-muted);display:flex;gap:12px}
.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500}
.tag-blue{background:var(--brand-light);color:var(--brand)}.tag-green{background:#d1fae5;color:#065f46}.tag-yellow{background:#fef3c7;color:#92400e}.tag-red{background:#fee2e2;color:#991b1b}
.badge-verified{background:var(--brand);color:#fff;padding:1px 6px;border-radius:3px;font-size:11px}
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-item{text-align:center;padding:18px 12px;background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border)}
.stat-num{font-size:28px;font-weight:800;color:var(--brand);letter-spacing:-.5px}.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px}
.city-tag{display:inline-block;padding:6px 14px;margin:3px;border-radius:var(--radius-sm);font-size:13px;color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border);transition:all .15s}
.city-tag:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light)}
.region-label{font-weight:600;color:var(--brand);margin-right:8px;font-size:14px;display:inline-block;width:50px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;border:none;transition:all .15s;text-decoration:none}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent-dark);color:#fff}
.btn-outline{background:transparent;color:var(--brand);border:1px solid var(--brand)}.btn-outline:hover{background:var(--brand-light)}
.btn-sm{padding:6px 14px;font-size:13px}.btn-block{width:100%}
.form-group{margin-bottom:14px}.form-label{display:block;font-size:13px;font-weight:600;margin-bottom:4px;color:var(--text-secondary)}
.form-input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:border-color .15s}
.form-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}.form-textarea{resize:vertical;min-height:80px}
.pagination{display:flex;justify-content:center;gap:6px;margin:24px 0}
.pagination a,.pagination span{padding:6px 12px;border-radius:var(--radius-sm);font-size:13px;border:1px solid var(--border);color:var(--text-secondary)}
.pagination a:hover{border-color:var(--brand);color:var(--brand)}.pagination .current{background:var(--brand);color:#fff;border-color:var(--brand)}
.detail-header{background:linear-gradient(135deg,var(--brand-50) 0%,#fff 100%);padding:28px 0;border-bottom:1px solid var(--border)}
.detail-title{font-size:24px;font-weight:700;margin-bottom:8px}.detail-meta{display:flex;gap:16px;font-size:13px;color:var(--text-secondary);flex-wrap:wrap}
.faq-item{border-bottom:1px solid var(--border);padding:14px 0}.faq-item:last-child{border-bottom:none}
.faq-q{font-size:15px;font-weight:600;margin-bottom:6px}.faq-q::before{content:'Q';display:inline-block;width:22px;height:22px;line-height:22px;text-align:center;background:var(--brand);color:#fff;border-radius:4px;font-size:12px;font-weight:700;margin-right:8px}
.faq-a{font-size:14px;color:var(--text-secondary);line-height:1.7;padding-left:30px}
.footer{background:#1a2332;color:#94a3b8;padding:36px 0 24px;margin-top:40px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:24px}
.footer h4{color:#e2e8f0;font-size:15px;font-weight:600;margin-bottom:12px}.footer a{color:#94a3b8;font-size:13px}.footer a:hover{color:#fff}
.footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:8px}.footer-desc{font-size:13px;line-height:1.6}
.footer-bottom{border-top:1px solid #2d3748;padding-top:16px;text-align:center;font-size:12px;color:#64748b}
.footer-links{display:flex;flex-direction:column;gap:8px}
.layout-main{display:grid;grid-template-columns:1fr 320px;gap:24px}.layout-main .main-col{min-width:0}.layout-main .side-col{position:sticky;top:76px;align-self:start}
.side-module{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);margin-bottom:16px;overflow:hidden}
.side-module-header{padding:12px 16px;font-size:14px;font-weight:700;border-bottom:1px solid var(--border);background:var(--brand-50)}
.side-module-body{padding:14px 16px}
.side-contact{text-align:center;padding:20px 16px;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;border-radius:var(--radius-md);margin-bottom:16px}
.side-contact .phone{font-size:22px;font-weight:800;margin:8px 0 4px}.side-contact .hours{font-size:12px;opacity:.8}
.flow-num{width:48px;height:48px;border-radius:50%;background:var(--brand-light);color:var(--brand);font-size:20px;font-weight:800;line-height:48px;margin:0 auto 8px}
.content-html h2{font-size:18px;font-weight:600;margin:20px 0 10px}.content-html h3{font-size:16px;font-weight:600;margin:16px 0 8px}
.content-html p{margin-bottom:12px;line-height:1.8;color:var(--text-secondary)}.content-html ul,.content-html ol{padding-left:20px;margin-bottom:12px}
.content-html li{margin-bottom:6px;line-height:1.7}.content-html table{width:100%;border-collapse:collapse;margin-bottom:16px}
.content-html th,.content-html td{padding:8px 12px;border:1px solid var(--border);font-size:14px}.content-html th{background:var(--brand-50);font-weight:600}
.back-to-top{position:fixed;bottom:140px;right:20px;z-index:202;width:44px;height:44px;border-radius:50%;background:var(--bg-card);color:var(--brand);border:1px solid var(--border);box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.inquiry-float{position:fixed;bottom:20px;right:20px;z-index:201;display:flex;flex-direction:column;align-items:center;gap:8px}
.inquiry-float .inquiry-label{font-size:11px;color:#fff;background:var(--brand);padding:2px 8px;border-radius:10px;white-space:nowrap}
.inquiry-btn{width:56px;height:56px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:var(--shadow-lg);cursor:pointer;border:none;transition:transform .2s}
.inquiry-btn:hover{transform:scale(1.1)}
.mobile-menu-btn{display:none;width:36px;height:36px;border:none;background:none;cursor:pointer}
.mobile-menu-btn span{display:block;width:22px;height:2px;background:var(--text-primary);margin:5px auto;transition:all .3s}
@media(max-width:768px){:root{--max-w:100%}.container{padding:0 12px}.header-inner{height:52px}.logo{font-size:18px}.header-actions .header-phone{display:none}.mobile-menu-btn{display:block}.nav a{padding:8px 14px;font-size:13px}.search-bar{padding:18px 0}.search-bar h1{font-size:17px;margin-bottom:12px}.stats-bar{grid-template-columns:repeat(2,1fr);gap:10px}.stat-num{font-size:20px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grid-8{grid-template-columns:repeat(2,1fr)}.layout-main{grid-template-columns:1fr}.layout-main .side-col{position:static}.footer-top{grid-template-columns:1fr;gap:20px}.cat-card{flex-direction:row;padding:14px;gap:12px;text-align:left}.cat-icon{width:40px;height:40px;margin-bottom:0;flex-shrink:0}.detail-title{font-size:20px}.inquiry-float{bottom:12px;right:12px}.back-to-top{bottom:100px;right:12px;width:40px;height:40px}.home-two-col{grid-template-columns:1fr!important}.grid-flow{grid-template-columns:repeat(2,1fr)!important}}
@media(min-width:769px) and (max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-8{grid-template-columns:repeat(4,1fr)}.layout-main{grid-template-columns:1fr 260px;gap:16px}.footer-top{grid-template-columns:2fr 1fr}}
@media print{.header,.nav,.footer,.search-bar,.inquiry-float,.side-col,.back-to-top{display:none}.layout-main{grid-template-columns:1fr}body{background:#fff}}