:root{font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;color:#17352c;background:#f4f7f4;color-scheme:light}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 85% 10%,#e2ede4,transparent 52%)}main{max-width:620px;margin:0 auto;padding:68px 24px 30px}.brand{display:flex;align-items:center;gap:14px;font-size:12px;letter-spacing:1.5px;margin-bottom:30px}.mark{width:44px;height:44px;display:grid;place-items:center;background:#193f32;color:white;border-radius:13px;font-size:21px;font-family:serif}.brand-sub{display:block;letter-spacing:0;font-size:11px;color:#76877e;margin-top:5px}.tag{margin-left:auto;font-size:11px;letter-spacing:0;border:1px solid #cbd8ce;border-radius:20px;padding:5px 10px;color:#627669}.card{background:#fff;border:1px solid #dce5dc;border-radius:22px;padding:38px;box-shadow:0 18px 55px #28443509}.eyebrow{font-size:12px;color:#658776;letter-spacing:2px}h1{font-size:32px;letter-spacing:-1px;font-weight:650;margin:16px 0 13px;line-height:1.3}.intro{font-size:14px;line-height:1.8;color:#68786f;margin:0 0 30px}.status-box{display:flex;gap:12px;align-items:flex-start;background:#f3f7f3;border:1px solid #e3eae3;padding:18px;border-radius:12px}.status-box strong{display:block;font-size:14px;font-weight:550;line-height:1.6}.status-box p{font-size:12px;line-height:1.7;color:#7b897f;margin:7px 0 0}.dot{flex:none;width:8px;height:8px;border-radius:50%;background:#4e8764;margin-top:7px}.dot.busy{animation:pulse 1.4s infinite}.dot.error{background:#be6b4f}.dot.ready{background:#4e8764}label{display:block;font-size:13px;margin:25px 0 9px}input[type=text]{width:100%;font:inherit;font-size:14px;border:1px solid #cad7cd;padding:13px;border-radius:9px;outline:none}input:focus{border-color:#407258;box-shadow:0 0 0 3px #eaf1eb}.hint{color:#869187;font-size:12px;line-height:1.7;margin:10px 0 20px}button{width:100%;font:inherit;font-size:14px;background:#234c38;color:#fff;border:0;border-radius:9px;padding:14px;cursor:pointer}button:hover{background:#193e2b}button:disabled{opacity:.5;cursor:wait}#retry,#enter{margin-top:20px}.text-button{background:transparent;color:#839086;font-size:12px;padding:0;margin-top:26px}.text-button:hover{background:transparent;color:#31543d}footer{display:flex;justify-content:center;gap:10px;font-size:11px;color:#94a097;margin-top:26px}button[hidden],form[hidden]{display:none}@keyframes pulse{50%{opacity:.3}}@media(prefers-reduced-motion:reduce){.dot.busy{animation:none}}@media(max-width:520px){main{padding:35px 18px}.card{padding:28px 23px}h1{font-size:27px}footer{font-size:10px;gap:7px}}.captcha-row{display:flex;align-items:center;gap:16px;margin:0 0 14px}.captcha-row img{width:154px;height:48px;object-fit:contain;border:1px solid #dce5dc;border-radius:5px}.secondary{width:auto;background:#e7eee8;color:#31543d;padding:10px 14px}.secondary:hover{background:#dce8df}#captcha-answer{letter-spacing:3px}