:root{--ink:#182334;--muted:#667085;--line:#e4e9f0;--soft:#f5f8fc;--blue:#2166f3;--navy:#0b2545;--green:#1b9a70;--red:#c23b4a;--shadow:0 18px 50px rgba(31,48,79,.08)}
*{box-sizing:border-box}body{margin:0;background:#f7f9fc;color:var(--ink);font-family:"Microsoft YaHei",Arial,sans-serif;font-size:15px}button,input,textarea,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.topbar{height:74px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1180px)/2));position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#2d7dff,#6aa0ff);display:grid;place-items:center;color:#fff;font-weight:800;font-size:22px}.brand strong,.brand small{display:block}.brand strong{font-size:16px}.brand small{color:var(--muted);font-size:12px;margin-top:2px}.page-shell,.admin-shell{max-width:1180px;margin:0 auto;padding:54px 24px 80px}.hero{max-width:700px;margin:10px 0 32px}.eyebrow{font-size:11px;letter-spacing:.13em;color:var(--blue);font-weight:800}.hero h1,.admin-heading h1{font-size:37px;line-height:1.2;margin:12px 0;color:var(--navy);letter-spacing:-.02em}.hero p,.admin-heading p,.login-card p{color:var(--muted);line-height:1.75}.survey-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.survey-card,.login-card,.panel,.success-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.survey-card{padding:24px;display:flex;flex-direction:column;min-height:210px}.survey-card h2{font-size:20px;margin:8px 0 10px;color:var(--navy)}.survey-card p{color:var(--muted);line-height:1.65;flex:1}.survey-meta{font-size:12px;color:var(--muted);margin-bottom:16px}.primary-button,.secondary-button,.ghost-button,.text-button,.icon-button{border-radius:10px;border:1px solid transparent;padding:10px 15px;transition:.18s ease}.primary-button{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(33,102,243,.22)}.primary-button:hover{background:#1657d4;transform:translateY(-1px)}.secondary-button{background:#edf4ff;color:var(--blue);border-color:#d9e7ff}.ghost-button{background:#fff;color:var(--ink);border-color:var(--line);text-decoration:none}.ghost-button:hover,.secondary-button:hover{border-color:#b9cdf2;background:#f5f9ff}.text-button{padding:0;background:transparent;color:var(--blue);border:0}.form-header{margin:18px 0 20px}.form-header h1{font-size:30px;color:var(--navy);margin:12px 0 8px}.form-header p{color:var(--muted);line-height:1.7}.question-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:14px 0;box-shadow:0 10px 26px rgba(31,48,79,.045)}.question-title{font-weight:800;color:var(--navy);line-height:1.6;margin-bottom:4px}.question-number{color:var(--blue);margin-right:4px}.question-desc{color:var(--muted);font-size:13px;margin:4px 0 14px;line-height:1.6}.required{color:var(--red);margin-left:4px}.choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}.choice-label{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;align-items:center;gap:9px;color:#354052;background:#fbfcfe}.choice-label:hover{border-color:#aac5fa;background:#f4f8ff}.choice-label input{accent-color:var(--blue)}.scale-row{display:flex;gap:8px;flex-wrap:wrap}.scale-item{min-width:62px;border:1px solid var(--line);border-radius:10px;padding:9px;text-align:center}.scale-item input{display:block;margin:0 auto 5px;accent-color:var(--blue)}textarea,input[type=text],input[type=password],select{width:100%;border:1px solid #d6dde8;border-radius:10px;padding:10px 12px;outline:none;background:#fff}textarea:focus,input:focus,select:focus{border-color:#7aa6f9;box-shadow:0 0 0 3px #eaf1ff}.form-actions{display:flex;justify-content:flex-end;margin-top:22px}.success-card{max-width:600px;margin:60px auto;padding:56px 34px;text-align:center}.success-icon{width:60px;height:60px;border-radius:50%;background:#e6f7f0;color:var(--green);display:grid;place-items:center;font-size:32px;font-weight:800;margin:0 auto 18px}.success-card h1{color:var(--navy)}.admin-shell{max-width:1240px}.login-card{max-width:440px;margin:60px auto;padding:32px}.login-card h1{margin:10px 0;font-size:30px;color:var(--navy)}label{display:block;font-weight:700;color:#263241;margin:14px 0}label input,label textarea,label select{display:block;margin-top:7px;font-weight:400}.login-card .primary-button{width:100%;margin-top:8px}.error-text{color:var(--red);margin-top:10px;min-height:20px}.admin-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}.admin-heading h1{margin-bottom:5px}.action-row{display:flex;gap:10px}.admin-list{display:grid;gap:14px}.admin-row{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.admin-row h3{margin:0 0 6px;color:var(--navy)}.admin-row p{margin:0;color:var(--muted);font-size:13px}.admin-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.status-pill{display:inline-flex;padding:4px 9px;border-radius:999px;font-size:12px;margin-left:8px}.status-draft{background:#f2f4f7;color:#667085}.status-published{background:#e7f7ef;color:#147d5d}.panel{margin-top:22px;padding:25px}.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.panel-header h2{margin:7px 0 0;color:var(--navy)}.icon-button{font-size:24px;background:transparent;color:var(--muted);padding:2px 8px}.two-col{display:grid;grid-template-columns:2fr 1fr;gap:16px}.questions-toolbar{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);margin-top:20px;padding-top:18px}.questions-toolbar h3{color:var(--navy);margin:0}.question-editor{border:1px solid var(--line);border-radius:14px;padding:15px 16px;margin:12px 0;background:#fbfcfe}.question-editor-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.question-editor-head strong{color:var(--blue)}.question-editor-grid{display:grid;grid-template-columns:1.8fr 1fr;gap:12px}.question-editor-grid .wide{grid-column:1/-1}.mini-actions{display:flex;gap:8px}.danger-button{background:#fff3f4;color:var(--red);border-color:#ffd6da}.editor-footer{display:flex;align-items:center;gap:14px;margin-top:20px}.muted-text{color:var(--muted);font-size:13px}.stats-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px}.stat-card{background:var(--soft);border-radius:12px;padding:15px}.stat-card b{display:block;color:var(--navy);font-size:26px;margin-top:4px}.stat-card span{font-size:12px;color:var(--muted)}.stat-block{border-top:1px solid var(--line);padding:18px 0}.stat-block h3{color:var(--navy);font-size:15px;margin:0 0 10px}.bar-row{display:grid;grid-template-columns:minmax(120px,1fr) 6fr 40px;align-items:center;gap:9px;margin:7px 0;font-size:13px}.bar-track{height:9px;background:#edf1f6;border-radius:99px;overflow:hidden}.bar-fill{height:100%;background:linear-gradient(90deg,#5e95ff,#2166f3);border-radius:99px}.response-text{background:#f8fafc;border-radius:9px;padding:9px 11px;margin:6px 0;color:#445063;font-size:13px}.matrix-table{width:100%;border-collapse:collapse;font-size:12px}.matrix-table th,.matrix-table td{border:1px solid var(--line);padding:8px;text-align:center}.matrix-table th:first-child,.matrix-table td:first-child{text-align:left;min-width:180px}.matrix-table th{background:var(--soft);color:var(--navy)}@media(max-width:700px){.topbar{padding:0 16px}.page-shell,.admin-shell{padding:34px 16px 60px}.hero h1,.admin-heading h1{font-size:30px}.admin-heading{display:block}.action-row{margin-top:18px}.two-col,.question-editor-grid{grid-template-columns:1fr}.choice-grid{grid-template-columns:1fr}.stats-summary{grid-template-columns:1fr}.admin-row{display:block}.admin-actions{justify-content:flex-start;margin-top:14px}}