:root{--bg:#f4f6f9;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--primary:#2563eb;--primary2:#1d4ed8;--success:#059669;--danger:#dc2626;--warning:#d97706}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.topbar{height:60px;background:#111827;color:white;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:10}.brand{font-weight:700;font-size:18px}.nav{display:flex;gap:18px;align-items:center}.nav a,.nav button{color:#e5e7eb;background:none;border:0;cursor:pointer;font-size:14px}.container{max-width:1280px;margin:24px auto;padding:0 20px}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.03)}.stat-num{font-size:30px;font-weight:800;margin-top:8px}.muted{color:var(--muted);font-size:13px}.section-title{font-size:18px;font-weight:700;margin:0 0 16px}.row{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:6px;min-width:180px;flex:1}.field label{font-size:13px;color:#4b5563}.input,select,textarea{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;background:white;font-size:14px;outline:none}.input:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px #dbeafe}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:8px;padding:10px 15px;font-weight:600;cursor:pointer;font-size:14px}.btn-primary{background:var(--primary);color:white}.btn-primary:hover{background:var(--primary2)}.btn-danger{background:#fee2e2;color:#b91c1c}.btn-light{background:#f3f4f6;color:#374151}.btn-success{background:#d1fae5;color:#047857}.mt{margin-top:18px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px}table{border-collapse:collapse;width:100%;min-width:850px;background:white}th,td{padding:11px 12px;border-bottom:1px solid var(--line);font-size:13px;text-align:left;white-space:nowrap}th{background:#f9fafb;color:#374151}.badge{display:inline-block;padding:3px 8px;border-radius:999px;font-size:12px;font-weight:700}.b-new{background:#d1fae5;color:#047857}.b-old{background:#fef3c7;color:#92400e}.b-dup{background:#e0e7ff;color:#3730a3}.b-invalid{background:#fee2e2;color:#991b1b}.alert{padding:11px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}.alert-ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.alert-err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-box{width:100%;max-width:420px;background:white;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 12px 30px rgba(0,0,0,.08)}.login-box h1{font-size:22px;margin:0 0 8px}.login-box .field{margin-top:14px}.progress{height:10px;background:#e5e7eb;border-radius:999px;overflow:hidden}.progress>div{height:100%;background:var(--primary);width:0;transition:width .3s}.actions{display:flex;gap:8px;flex-wrap:wrap}.pagination{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}.small{font-size:12px}.nowrap{white-space:nowrap}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.topbar{padding:0 14px}.container{padding:0 12px}}@media(max-width:560px){.grid{grid-template-columns:1fr}.nav{gap:10px}.brand{font-size:15px}.card{padding:15px}}
.preview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.preview-box{border:1px solid var(--line);border-radius:10px;padding:14px;background:#fafafa}.preview-title{font-weight:700;margin-bottom:10px}.phone-list{max-height:280px;overflow:auto;background:white;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}.phone-list>div{padding:5px 0;border-bottom:1px dashed #eee}.phone-list>div:last-child{border-bottom:0}.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.danger-card{border-color:#fecaca}@media(max-width:800px){.preview-grid,.settings-grid{grid-template-columns:1fr}}