:root{--primary:#2563eb;--primary2:#4f7cff;--ink:#14213d;--muted:#667085;--bg:#f5f7fb;--card:#fff;--line:#e7ebf2;--success:#16a34a;--danger:#dc2626;--radius:16px;--shadow:0 12px 36px rgba(24,39,75,.08)}
*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}img{max-width:100%;display:block}.container{width:min(1200px,calc(100% - 32px));margin:auto}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.topbar-inner{height:70px;display:flex;align-items:center;gap:26px}.brand{font-weight:900;font-size:22px;display:flex;align-items:center;gap:10px}.brand-badge{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;display:grid;place-items:center}.nav{display:flex;gap:20px;align-items:center;flex:1}.nav a{color:#344054;font-weight:600}.nav a:hover{color:var(--primary)}.user-actions{display:flex;gap:10px}.btn{border:0;border-radius:11px;padding:10px 16px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;transition:.18s;background:#eef2ff;color:var(--primary)}.btn:hover{transform:translateY(-1px)}.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.22)}.btn.danger{background:#fff1f2;color:#be123c}.btn.ghost{background:#fff;border:1px solid var(--line);color:#344054}.btn.block{width:100%}.hero{padding:64px 0 42px;background:radial-gradient(circle at 10% 10%,rgba(59,130,246,.18),transparent 30%),radial-gradient(circle at 90% 20%,rgba(124,58,237,.14),transparent 28%),linear-gradient(180deg,#fff,#f5f7fb)}.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}.eyebrow{display:inline-flex;padding:7px 12px;border-radius:999px;background:#eaf2ff;color:var(--primary);font-weight:800;font-size:13px}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.08;margin:18px 0}.hero p{font-size:18px;line-height:1.8;color:var(--muted);max-width:720px}.searchbox{display:flex;background:#fff;border:1px solid #dbe4f0;border-radius:16px;padding:7px;box-shadow:var(--shadow);max-width:720px}.searchbox input{flex:1;border:0;outline:0;padding:12px;background:transparent}.hero-card{background:linear-gradient(145deg,#16346c,#285dc8);color:#fff;border-radius:24px;padding:26px;box-shadow:0 22px 60px rgba(37,99,235,.22)}.hero-card .metric{padding:18px 0;border-bottom:1px solid rgba(255,255,255,.16)}.hero-card .metric:last-child{border:0}.hero-card b{font-size:28px;display:block}.section{padding:42px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-head h2{font-size:28px;margin:0}.section-head p{margin:6px 0 0;color:var(--muted)}.chips{display:flex;gap:10px;flex-wrap:wrap}.chip{padding:9px 13px;background:#fff;border:1px solid var(--line);border-radius:999px;color:#475467}.chip:hover,.chip.active{border-color:#9cb8ff;color:var(--primary);background:#f0f5ff}.grid{display:grid;gap:18px}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 6px 20px rgba(16,24,40,.035)}.card.hover{transition:.2s}.card.hover:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cedbff}.paper-card .tags,.tags{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0}.tag{font-size:12px;padding:5px 8px;border-radius:8px;background:#f2f4f7;color:#475467}.paper-card h3{font-size:17px;line-height:1.55;margin:8px 0}.meta{color:#98a2b3;font-size:13px;display:flex;gap:12px;flex-wrap:wrap}.product-card{padding:0;overflow:hidden}.product-cover{height:190px;background:linear-gradient(135deg,#edf3ff,#f9f5ff);display:grid;place-items:center;color:#667085;font-weight:800}.product-body{padding:18px}.price{color:#e11d48;font-size:22px;font-weight:900}.price small{font-size:13px}.filter-panel{display:grid;gap:14px;margin-bottom:20px}.filter-row{display:flex;align-items:flex-start;gap:12px}.filter-label{width:70px;color:#667085;padding-top:8px}.list{display:grid;gap:12px}.list-item{background:#fff;border:1px solid var(--line);padding:18px;border-radius:14px;display:flex;justify-content:space-between;gap:20px;align-items:center}.pagination{display:flex;gap:8px;justify-content:center;margin:26px 0}.pagination a{padding:8px 12px;border-radius:9px;background:#fff;border:1px solid var(--line)}.question{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:16px}.question .stem{font-size:16px;line-height:1.75}.options{display:grid;gap:9px;margin-top:14px}.option{padding:12px 14px;border:1px solid var(--line);border-radius:12px;cursor:pointer}.option:hover{border-color:#9ab5ff;background:#f7f9ff}.option input{margin-right:8px}.answer-box{display:none;margin-top:14px;padding:12px;border-radius:10px;background:#f4f7ff;color:#344054}.answer-box.show{display:block}.auth-wrap{min-height:calc(100vh - 70px);display:grid;place-items:center;padding:40px 16px}.auth-card{width:min(460px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow)}.auth-card h1{margin:0 0 8px}.field{display:grid;gap:7px;margin:16px 0}.field label{font-size:14px;font-weight:700;color:#475467}.input,.select,.textarea{width:100%;border:1px solid #d9e0ea;border-radius:11px;padding:12px 13px;outline:0;background:#fff}.input:focus,.select:focus,.textarea:focus{border-color:#84a7ff;box-shadow:0 0 0 3px rgba(37,99,235,.08)}.sms-row{display:grid;grid-template-columns:1fr auto;gap:10px}.oauth-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}.stat b{display:block;font-size:28px;margin-top:6px}.footer{margin-top:50px;border-top:1px solid var(--line);background:#fff;padding:30px 0;color:#667085}.mobile-nav{display:none}.empty{text-align:center;padding:46px;color:#98a2b3}.notice{padding:12px 14px;border-radius:10px;background:#eef6ff;color:#2457a6;margin:12px 0}.notice.warn{background:#fff8e8;color:#92400e}.notice.error{background:#fff1f2;color:#be123c}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:15px}.table{width:100%;border-collapse:collapse;min-width:760px}.table th,.table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.table th{background:#f8fafc;color:#667085;font-weight:700}.table tr:last-child td{border-bottom:0}.global-loading{position:fixed;inset:0;background:rgba(255,255,255,.55);backdrop-filter:blur(2px);z-index:9999;display:none;place-items:center}.global-loading.show{display:grid}.loader-card{background:#fff;padding:18px 22px;border-radius:15px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;font-weight:700}.spin,.mini-spin{width:22px;height:22px;border:3px solid #dbe5ff;border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}.mini-spin{width:16px;height:16px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}#toast-stack{position:fixed;right:18px;top:86px;z-index:10000;display:grid;gap:10px}.toast{background:#172033;color:#fff;padding:12px 16px;border-radius:11px;box-shadow:var(--shadow);opacity:0;transform:translateY(-8px);transition:.2s;max-width:360px}.toast.show{opacity:1;transform:none}.toast.success{background:#166534}.toast.error{background:#991b1b}
.admin-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.admin-side{position:sticky;top:0;height:100vh;background:#111827;color:#d1d5db;padding:20px 14px}.admin-side .brand{color:#fff;padding:6px 8px 20px}.admin-menu{display:grid;gap:5px}.admin-menu a{padding:11px 12px;border-radius:10px}.admin-menu a:hover{background:#1f2937;color:#fff}.admin-main{min-width:0}.admin-top{height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:40}.admin-content{padding:24px;max-width:1560px;margin:auto}.admin-title{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.admin-title h1{margin:0}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.form-grid .wide{grid-column:1/-1}
@media(max-width:980px){.nav{display:none}.grid.cols-4{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(2,1fr)}.hero-grid{grid-template-columns:1fr}.hero-card{display:none}.stat-grid{grid-template-columns:repeat(2,1fr)}.admin-shell{grid-template-columns:1fr}.admin-side{display:none}.admin-content{padding:16px}.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}}
@media(max-width:640px){body{padding-bottom:72px}.container{width:min(100% - 22px,1200px)}.topbar-inner{height:60px}.brand{font-size:19px}.user-actions .btn.ghost{display:none}.hero{padding:36px 0 24px}.hero h1{font-size:36px}.hero p{font-size:15px}.searchbox{border-radius:13px}.section{padding:28px 0}.section-head h2{font-size:23px}.grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}.grid.cols-4.mobile-2{grid-template-columns:repeat(2,1fr);gap:10px}.product-cover{height:145px}.list-item{align-items:flex-start;flex-direction:column}.filter-row{display:block}.filter-label{width:auto;padding:0;margin-bottom:8px}.auth-card{padding:22px;border-radius:18px}.stat-grid{grid-template-columns:repeat(2,1fr)}.mobile-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;height:64px;background:#fff;border-top:1px solid var(--line);z-index:100}.mobile-nav a{display:grid;place-items:center;font-size:12px;color:#667085}.mobile-nav a b{display:block;font-size:18px;line-height:1}.oauth-row{grid-template-columns:1fr}.table{min-width:680px}.admin-top{padding:0 14px}#toast-stack{left:12px;right:12px;top:70px}.toast{max-width:none}.footer{margin-bottom:0}}