:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:#1b312f;background:#f5f7f5;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}
.shell{max-width:720px;margin:auto;padding:0 22px 52px}.header{height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e2eae6}
.brand{display:flex;align-items:center;gap:11px}.logo{display:grid;place-items:center;width:39px;height:39px;border-radius:12px;color:white;background:#136f5c;font-weight:700;font-size:19px}
.brand strong{display:block;font-size:17px}.brand small{display:block;font-size:11px;color:#8a9c95;margin-top:2px}.text-button{border:0;background:none;color:#658077}
#workspace{padding-top:28px}.intro{padding:42px 3px 25px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;color:#15806c}.intro h1,.login h1{font-size:clamp(27px,5vw,40px);line-height:1.3;letter-spacing:-.04em;margin:12px 0}.intro p,.muted{color:#71857d;line-height:1.65;margin:0}
.card{background:#fff;border:1px solid #e3ece7;border-radius:22px;padding:26px;box-shadow:0 12px 42px rgba(40,77,61,.05);margin-bottom:16px}.login{max-width:420px;margin:70px auto}.login form{margin-top:24px}
label:not(.drop-area){display:block;margin-bottom:8px;font-weight:600;font-size:14px}input:not([type=file]),textarea{width:100%;border:1px solid #d9e5de;border-radius:12px;background:#fafcfb;padding:13px 14px;outline:0;color:#1b312f}input:focus,textarea:focus{border-color:#16806a;box-shadow:0 0 0 3px #dcefe8}textarea{resize:vertical;line-height:1.5}
.primary,.secondary{border:0;border-radius:12px;padding:15px 18px;font-weight:700}.primary{background:#146f5d;color:white}.primary:disabled{opacity:.5;cursor:not-allowed}.primary span{float:right}.secondary{background:#e7f3ee;color:#176f5b;margin-top:12px}.full{width:100%}.login .primary{margin-top:14px}
.section-title{display:flex;align-items:flex-start;gap:12px;margin-bottom:22px}.step{border-radius:9px;background:#e5f3eb;color:#20806c;font-weight:700;font-size:12px;padding:8px}.section-title h2{font-size:17px;margin:0 0 4px}.section-title p{font-size:13px;color:#91a39b;margin:0}
.drop-area{border:1.5px dashed #bad5c8;background:#f8fcf9;border-radius:15px;min-height:154px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;color:#315c4d;cursor:pointer}.drop-area small{font-size:12px;color:#8a9d94}.upload-icon{font-size:22px;border-radius:12px;background:#e7f3eb;width:39px;height:39px;display:grid;place-items:center;color:#177760}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.preview{margin:14px 0;position:relative}.preview img{width:100%;max-height:300px;object-fit:contain;border-radius:12px;background:#f3f6f4}.clear{display:block;border:0;background:none;color:#7c8e86;margin:8px auto}.small{font-size:12px}.upload-card .primary{margin-top:15px}.footnote{font-size:12px;color:#9aa9a1;margin:13px 0 0;text-align:center}
.message{padding:13px 16px;border-radius:12px;background:#e7f3ee;color:#186e5b}.message.error,.error{color:#b34c40;background:#fff1ee}.answer{background:#e8f6ee;color:#176d52;border-radius:14px;padding:18px;margin-bottom:18px}.answer strong{display:block;font-size:24px;margin-top:6px}.review{background:#fff4e4;color:#90602c}.question{font-weight:700;line-height:1.6;margin:15px 0}.option{padding:12px 0;border-top:1px solid #edf1ee;line-height:1.5}.option b{color:#16806a;margin-right:8px}.option small{display:block;color:#8a9a91;margin-top:5px}summary{font-weight:700;cursor:pointer}details p{margin:12px 0}footer{text-align:center;color:#a5b2ab;font-size:12px;margin-top:28px}
@media(max-width:480px){.shell{padding:0 15px 42px}.header{height:69px}.card{padding:20px;border-radius:18px}.intro{padding-top:32px}.login{margin:45px auto}.intro h1{font-size:31px}}