:root{--primary:#2A6B7E;--primary-dark:#1E5A6B;--primary-light:#DAEAF0;--bg:#FAF8F5;--card:#FFF;--text:#1A1A1A;--text-muted:#4A4A4A;--border:#D0C8C0;--success:#4CAF50;--warning:#FF9800;--danger:#E53935;--radius:12px;--radius-sm:8px;--shadow:0 4px 16px rgba(0,0,0,0.08)}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:18px;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
.container{max-width:var(--page-width,800px);width:100%;margin:0 auto;padding:16px;min-height:100vh;display:flex;flex-direction:column}
@media(min-width:768px){.container{max-width:var(--page-width-tablet,900px);padding:24px}}
@media(min-width:1024px){.container{max-width:var(--page-width-desktop,1000px);padding:28px}}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.scale-header{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:28px 24px;border-radius:var(--radius);margin-bottom:16px;text-align:center}
.scale-header h1{font-size:1.4rem;margin-bottom:4px}
.scale-header .subtitle{font-size:1rem;opacity:.9}
.scale-header .meta{margin-top:10px;font-size:.9rem;opacity:.85;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.card{background:var(--card);padding:24px;border-radius:var(--radius);box-shadow:var(--shadow);flex:1;display:flex;flex-direction:column}
.start-screen{text-align:center;padding:24px 0;flex:1;display:flex;flex-direction:column;justify-content:center}
.start-screen .scale-icon{font-size:3rem;margin-bottom:16px}
.start-screen h2{font-size:1.3rem;margin-bottom:10px;color:var(--text)}
.start-screen p{color:var(--text-muted);margin-bottom:8px;font-size:.95rem;line-height:1.65}
.start-screen .info-list{text-align:left;background:var(--bg);border-radius:var(--radius-sm);padding:16px 20px;margin:16px 0 20px;width:100%}
.start-screen .info-list li{padding:4px 0;font-size:.9rem;color:var(--text-muted);list-style:none}
.start-screen .info-list li::before{content:'\2713';color:var(--primary);font-weight:700;margin-right:8px}
.btn-start{background:var(--primary);color:#fff;border:none;padding:14px 48px;font-size:1.1rem;border-radius:var(--radius);cursor:pointer;font-weight:600;transition:all .3s}
.btn-start:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 6px 20px rgba(44,122,142,0.3)}
.btn-start:active{transform:translateY(0)}
.start-hint{font-size:.85rem;color:var(--text-muted);margin-top:10px}
.progress-bar-wrap{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.progress-track{flex:1;height:6px;background:#E0E0E0;border-radius:3px;overflow:hidden}
.progress-fill{height:100%;background:var(--primary);border-radius:3px;transition:width .4s ease}
.progress-text{font-size:.82rem;color:var(--text-muted);white-space:nowrap}
.question-area{flex:1;display:flex;flex-direction:column}
.question-num{font-size:.82rem;color:var(--text-muted);margin-bottom:4px}
.question-text{font-size:1.05rem;font-weight:600;margin-bottom:6px;color:var(--text);line-height:1.55}
.question-dim{display:inline-block;font-size:.75rem;color:var(--primary);background:rgba(44,122,142,0.1);padding:2px 10px;border-radius:10px;margin-bottom:14px}
.options{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.option{display:block;width:100%;padding:12px 16px;background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:.95rem;text-align:left;color:var(--text);line-height:1.45;transition:all .2s;min-height:44px}
.option:hover{border-color:var(--primary)}
.option.selected{border-color:var(--primary);background:rgba(44,122,142,0.06);font-weight:600}
.option input{position:absolute;opacity:0}
.option:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.nav-row{display:flex;justify-content:space-between;gap:10px;margin-top:auto;padding-top:16px}
.nav-btn{padding:10px 20px;border-radius:var(--radius-sm);font-size:.92rem;font-weight:600;cursor:pointer;border:1.5px solid var(--border);background:var(--card);color:var(--text);transition:all .2s;min-width:80px;min-height:44px}
.nav-btn:hover:not(:disabled){border-color:var(--primary)}
.nav-btn:disabled{opacity:.4;cursor:not-allowed}
.nav-btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.nav-btn.primary:hover:not(:disabled){background:var(--primary-dark)}
.result-screen{flex:1;display:flex;flex-direction:column}
.result-banner{text-align:center;padding:24px;border-radius:var(--radius);margin-bottom:20px}
.result-banner.low{background:rgba(76,175,80,0.1)}
.result-banner.moderate{background:rgba(255,152,0,0.1)}
.result-banner.high{background:rgba(229,57,53,0.1)}
.result-banner .icon{font-size:2.5rem;margin-bottom:8px}
.result-banner .label{font-size:1.15rem;font-weight:600;margin-bottom:4px}
.result-banner .score{font-size:2.5rem;font-weight:800;margin-bottom:4px}
.result-banner.low .label,.result-banner.low .score{color:var(--success)}
.result-banner.moderate .label,.result-banner.moderate .score{color:var(--warning)}
.result-banner.high .label,.result-banner.high .score{color:var(--danger)}
.result-banner .desc{font-size:.88rem;opacity:.8}
.section-title{font-size:1.05rem;font-weight:700;margin:0 0 10px;color:var(--text)}
.dimension-grid{display:grid;grid-template-columns:1fr;gap:10px;margin-bottom:20px}
@media(min-width:600px){.dimension-grid{grid-template-columns:repeat(2,1fr)}}
.dim-card{background:var(--bg);border-radius:var(--radius-sm);padding:14px;text-align:center}
.dim-card .name{font-size:.82rem;color:var(--text-muted);margin-bottom:4px}
.dim-card .value{font-size:1.2rem;font-weight:700;color:var(--primary)}
.dim-bar{height:6px;background:#E0E0E0;border-radius:3px;overflow:hidden;margin:6px 0 0}
.dim-bar-fill{height:100%;background:var(--primary);border-radius:3px}
.result-section{margin-bottom:20px}
.result-section h3{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.result-section .text{font-size:.9rem;color:var(--text-muted);line-height:1.7}
.result-section .text p{margin-bottom:8px}
.result-section .text ul{padding-left:18px;margin-bottom:8px}
.result-section .text li{margin-bottom:4px}
.advice-card{background:var(--bg);border-radius:var(--radius-sm);padding:16px;margin-bottom:10px;border-left:3px solid var(--primary)}
.advice-card .adv-title{font-size:.9rem;font-weight:600;color:var(--text);margin-bottom:4px}
.advice-card .adv-desc{font-size:.85rem;color:var(--text-muted);line-height:1.6}
.note-box{background:#FFF8E1;border:1px solid #FFE0B2;border-radius:var(--radius-sm);padding:16px;margin-bottom:16px}
.note-box h4{font-size:.9rem;color:#E65100;margin-bottom:6px}
.note-box p,.note-box li{font-size:.85rem;color:#5D4037;line-height:1.6}
.note-box ul{padding-left:18px;margin-top:6px}
.note-box li{margin-bottom:4px}
.action-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.action-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);text-decoration:none;font-weight:600;font-size:.9rem;cursor:pointer;border:none;transition:all .2s;min-height:44px}
.action-btn.primary{background:var(--primary);color:#fff}
.action-btn.primary:hover{background:var(--primary-dark)}
.action-btn.secondary{background:var(--card);border:1.5px solid var(--border);color:var(--text)}
.action-btn.secondary:hover{border-color:var(--primary)}
.result-footer{text-align:center;padding:12px 0;margin-top:auto;font-size:.82rem;color:var(--text-muted);border-top:1px solid var(--border)}
.loading{text-align:center;padding:40px;color:var(--text-muted)}
.loading .spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 12px}
@keyframes spin{to{transform:rotate(360deg)}}

@media(max-width:640px){
.scale-header{padding:20px 16px}.scale-header h1{font-size:1.2rem}.card{padding:16px}.start-screen{padding:16px 0}.start-screen .info-list{padding:12px 16px}.btn-start{padding:12px 36px;font-size:1rem}.question-text{font-size:1rem}.option{padding:10px 14px;font-size:.9rem}.nav-btn{padding:8px 14px;font-size:.85rem}.result-banner{padding:20px}.dim-card{padding:10px}}