:root{--ink:#172c2a;--muted:#667773;--green:#1d6556;--line:#d9e2dd;--paper:#f7f8f4;--mint:#edf3ed}*{box-sizing:border-box}body{color:var(--ink);background:var(--paper);margin:0;font-family:Inter,Segoe UI,Microsoft YaHei,system-ui,sans-serif;line-height:1.65}a{color:var(--green)}button,input,textarea{font:inherit}button,a,input,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #ddad53}[hidden]{display:none!important}.topbar{border-bottom:1px solid var(--line);max-width:1040px;color:var(--muted);justify-content:space-between;align-items:center;margin:auto;padding:24px 28px;font-size:12px;display:flex}.brand{letter-spacing:-.7px;color:var(--ink);font-size:19px;font-weight:800;text-decoration:none}.brand span{color:#92a59a;padding:0 5px}.shell{max-width:820px;margin:0 auto;padding:48px 28px 20px}.eyebrow{letter-spacing:3px;color:var(--green);margin-bottom:18px;font-size:11px;font-weight:700}h1{letter-spacing:-2.3px;margin:0 0 20px;font-family:Georgia,Times New Roman,serif;font-size:clamp(37px,7vw,63px);font-weight:500;line-height:1.08}h2{letter-spacing:-.5px;margin:0 0 14px;font-size:21px;line-height:1.4}h3{margin:0;font-size:16px;font-weight:650;line-height:1.55}p{margin:0 0 14px}.subtitle{margin-bottom:3px;font-size:15px}.cn-title{color:var(--muted);margin-bottom:36px;font-size:14px}.progress-top{color:var(--muted);justify-content:space-between;margin-bottom:10px;font-size:12px;display:flex}.progress{background:#dce5de;height:3px;margin-bottom:34px}.progress i{background:var(--green);height:100%;transition:width .3s;display:block}.intro-card{background:var(--mint);border:1px solid var(--line);border-radius:6px;margin-bottom:24px;padding:28px}.intro-card p{color:#435c55;font-size:13px}.badges{flex-wrap:wrap;gap:9px;margin-bottom:22px;display:flex}.badges span{border:1px solid #cbd9ce;border-radius:20px;padding:4px 11px;font-size:12px}.question{border:1px solid var(--line);background:#fff;border-radius:6px;margin:20px 0;padding:25px;scroll-margin-top:24px}.q-heading{align-items:flex-start;gap:13px;margin-bottom:20px;display:flex}.q-heading p{color:var(--muted);margin:5px 0 0;font-size:14px}.q-number{color:var(--green);border:1px solid var(--line);text-align:center;border-radius:4px;flex-shrink:0;min-width:35px;margin-top:3px;padding:4px 5px;font-size:11px;font-weight:700}.optional{white-space:nowrap;color:var(--muted);margin-left:auto;font-size:11px}fieldset{border:0;min-width:0;margin:0;padding:0}legend{margin-bottom:8px;font-size:12px;font-weight:700}.rating+.rating{border-top:1px solid #edf0ed;margin-top:20px;padding-top:18px}.rating-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;display:grid}.option{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:5px;align-items:center;gap:9px;min-height:48px;padding:11px 13px;font-size:13px;line-height:1.5;transition:background .1s,border .1s;display:flex}.option:hover{background:#f4f8f4}.option.selected{border-color:var(--green);color:#154d40;background:#eaf4ed}.option input{accent-color:var(--green);flex-shrink:0;width:17px;height:17px;margin:0}.rating-options .option{align-items:flex-start;padding:9px;font-size:12px}.rating-options input{margin-top:2px}.single-options{gap:8px;display:grid}.consent{gap:12px;margin-top:26px;font-size:13px;display:flex}.consent input{width:19px;height:19px;accent-color:var(--green);flex-shrink:0;margin-top:3px}.section-heading{align-items:flex-start;gap:20px;margin:30px 0 24px;display:flex}.section-heading p{color:var(--muted);margin:0;font-size:13px}.section-index{color:#8fa99a;font-family:Georgia,serif;font-size:42px;line-height:1}.videos{grid-template-columns:1fr 1fr;gap:16px;margin:24px 0;display:grid}.video-card{border:1px solid var(--line);background:#fff;border-radius:5px;margin:0;overflow:hidden}.video-card figcaption{justify-content:space-between;align-items:center;padding:12px 14px;font-size:13px;display:flex}.video-card figcaption span{color:var(--muted);font-size:10px}video{aspect-ratio:16/9;background:#15201e;width:100%;display:block}.video-card .caption{margin:0;padding:10px 14px;font-size:10px}.video-error{color:#8c302c;padding:12px;font-size:12px}.notice{background:var(--mint);color:#425f50;border-left:3px solid #91ab95;margin:22px 0;padding:15px 18px;font-size:12px}.caption{color:var(--muted);margin-top:12px;font-size:11px}.center{text-align:center}textarea{resize:vertical;width:100%;min-height:115px;color:var(--ink);border:1px solid #cbd8d0;border-radius:5px;padding:13px;font-size:14px}textarea::placeholder{color:#80938b}.navigation{justify-content:space-between;align-items:center;gap:12px;margin-top:25px;display:flex}.primary,.secondary{border:1px solid var(--green);border-radius:5px;min-height:48px;padding:12px 21px;font-size:13px;text-decoration:none}.primary{background:var(--green);color:#fff}.secondary{color:var(--green);background:0 0;border-color:#bccfc4}.text-button{color:var(--green);background:0 0;border:0;text-decoration:underline}.error{color:#a1342c;white-space:pre-wrap;font-size:13px}.error:empty{display:none}.completion{text-align:center;border:1px solid var(--line);background:#fff;margin:35px 0;padding:42px 24px}.success-mark{color:var(--green);font-size:42px;display:block}.completion p{font-size:14px}.completion .caption{overflow-wrap:anywhere;font-size:11px}.test-banner{background:#fff1cf;border:1px solid #e9ce91;margin-bottom:24px;padding:12px;font-size:12px}.stats{grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0;display:grid}.stat{border:1px solid var(--line);background:#fff;padding:20px}.stat strong{font-size:32px;display:block}.stat span{color:var(--muted);font-size:12px}.admin-actions{flex-wrap:wrap;align-items:center;gap:10px;margin:20px 0;display:flex}.admin-actions select{border:1px solid var(--line);background:#fff;padding:10px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:12px}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:9px 8px}td{overflow-wrap:anywhere}th{background:#f0f4ee;font-weight:650}.admin-card{border:1px solid var(--line);background:#fff;margin:20px 0;padding:20px}.distribution{align-items:center;gap:10px;margin:8px 0;font-size:12px;display:flex}.distribution .label{flex-shrink:0;width:210px}.bar-track{background:#eef2ec;flex:1;height:7px}.bar-track i{background:var(--green);height:100%;display:block}.distribution .count{text-align:right;min-width:65px}.text-entry{border-top:1px solid var(--line);white-space:pre-wrap;overflow-wrap:anywhere;padding:16px 0;font-size:13px}.text-entry small{color:var(--muted)}footer{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;margin-top:46px;padding:24px 0;font-size:11px;display:flex}footer span{font-family:monospace}.login-card{border:1px solid var(--line);background:#fff;border-radius:6px;max-width:420px;margin:40px auto;padding:28px}.login-card input{border:1px solid #cbd8d0;border-radius:5px;width:100%;margin:8px 0 16px;padding:12px}.link-button{color:var(--green);font-size:inherit;background:0 0;border:0;padding:0;text-decoration:underline}@media (width<=600px){.shell{padding:30px 17px 12px}.topbar{padding:16px 17px}.topbar>span{font-size:10px}h1{letter-spacing:-1.5px}.desktop-break{display:none}.intro-card{padding:20px}.question{padding:18px 14px}.q-heading{gap:9px}.q-heading h3{font-size:14px}.q-heading p{font-size:13px}.rating-options{grid-template-columns:repeat(2,minmax(0,1fr))}.rating-options .option{min-height:52px;padding:10px;font-size:12px}.videos{grid-template-columns:1fr}.video-card figcaption span,.video-card .caption{font-size:11px}.primary,.secondary{padding:11px 12px;font-size:12px}.stats{gap:8px}.stat{padding:12px}.stat strong{font-size:26px}.distribution .label{width:150px}.optional{display:none}.section-heading{gap:13px}.admin-card{padding:16px 10px}}