:root{font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:#142d45;background:#f5f8fc;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 12% 15%,#e4efff 0,transparent 48%),radial-gradient(ellipse at 95% 70%,#e9f7f3 0,transparent 45%),#f5f8fc;min-height:100vh}a{color:inherit;text-decoration:none}.shell{width:min(1080px,100%);margin:auto;padding:36px 40px 24px}header{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700}.brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:#2465ed;color:#fff;box-shadow:0 6px 18px #2465ed24;font-size:26px;font-weight:800}.brand small{display:block;margin-top:3px;font-size:9px;letter-spacing:1.8px;color:#7990a9;font-weight:500}.status{font-size:12px;color:#768ba1;border:1px solid #dce5ee;padding:7px 12px;border-radius:20px;background:#ffffff90;white-space:nowrap}.status.online{color:#23835e}.status.online:before{content:"";display:inline-block;width:6px;height:6px;margin-right:7px;border-radius:50%;background:#36ac7b}main{display:grid;grid-template-columns:1.13fr 1fr;gap:48px;padding-top:82px}.intro{padding-top:19px}.eyebrow{color:#3973b8;letter-spacing:2px;font-size:12px;font-weight:600}h1{font-size:46px;line-height:1.38;letter-spacing:-1.6px;margin:22px 0}p{line-height:1.8}.lead{color:#6b8095;font-size:16px;margin:0}.domain{display:flex;align-items:center;gap:12px;margin-top:30px;color:#53708c;font-size:13px;letter-spacing:.4px}.domain span{font-size:9px;border:1px solid #bad7cb;border-radius:4px;padding:3px 5px;color:#2c8b68;letter-spacing:.5px}.demo-card{background:#fff;border:1px solid #e0e8f1;border-radius:24px;padding:25px 30px 24px;text-align:center;box-shadow:0 22px 55px #2243630b}.card-top{display:flex;justify-content:space-between;align-items:center}.tag{font-size:11px;color:#467eb5;border-radius:5px;padding:5px 9px;background:#edf5ff}.version{font-size:10px;color:#94a5b6;letter-spacing:.3px}.illustration{position:relative;width:180px;height:134px;margin:27px auto 10px}.puzzle-base{position:absolute;width:102px;height:74px;left:20px;top:14px;border:2px solid #a8c8f1;background:linear-gradient(135deg,#edf5ff,#d6e7ff);border-radius:15px;transform:rotate(-7deg)}.puzzle-base:after{content:"";position:absolute;right:-12px;top:22px;width:25px;height:25px;border-radius:50%;background:#fafdff;border:2px solid #a8c8f1}.puzzle-piece{position:absolute;width:48px;height:48px;right:18px;top:49px;border-radius:11px;background:#2c6eec;transform:rotate(10deg);box-shadow:0 7px 15px #2c6eec26}.puzzle-piece:before{content:"";position:absolute;width:17px;height:17px;left:14px;top:-8px;border-radius:50%;background:#2c6eec}.track-line{position:absolute;bottom:0;left:24px;width:140px;height:9px;border-radius:10px;background:#eef3fa}.track-line:before{content:"";display:block;width:44px;height:9px;border-radius:10px;background:#cadcf7}h2{font-size:20px;font-weight:650;margin:17px 0 7px}.demo-card p{font-size:13px;color:#8b9bad;margin:0 0 24px}button{font-family:inherit;cursor:pointer}#start{width:100%;display:flex;align-items:center;justify-content:center;gap:22px;border:0;border-radius:12px;background:#2867e8;color:#fff;height:49px;font-size:14px;font-weight:600;box-shadow:0 7px 17px #2867e821;transition:background .2s}#start:hover{background:#1e55c6}#start:disabled{background:#9bb8e8;cursor:wait}#start span{font-size:20px;font-weight:400}.result{font-size:11px;color:#9aa9b9;min-height:18px;margin-top:17px}.result.passed{color:#23835e;font-weight:600}.details{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:0}.details article{border-top:1px solid #dae4ee;padding:23px 0 0}.details b{font-size:11px;color:#8dabc9;letter-spacing:1px}h3{font-size:14px;font-weight:600;margin:11px 0 4px}.details p{font-size:12px;color:#8c9daf;margin:0}footer{display:flex;justify-content:space-between;gap:20px;margin-top:66px;padding-top:20px;border-top:1px solid #e0e7ef;font-size:10px;color:#93a2b3}footer a{margin-left:16px}.captcha-modal{position:fixed;inset:0;z-index:1000;background:#142d4566;display:grid;place-items:center;padding:0;backdrop-filter:blur(4px)}.captcha-modal[hidden]{display:none}.captcha-dialog{width:318px;max-width:100%;border-radius:14px;overflow:hidden;box-shadow:0 20px 80px #0c264b40}#tianai-captcha-parent{border-radius:14px;box-shadow:none}
@media(max-width:720px){.shell{padding:24px}main{grid-template-columns:1fr;gap:30px;padding-top:35px}.intro{padding-top:0}h1{font-size:34px;letter-spacing:-1px;margin:17px 0}.lead{font-size:14px}.domain{margin-top:17px}.demo-card{padding:22px 24px}.illustration{margin-top:20px;height:116px}.details{gap:16px;margin-top:6px}.details article{padding-top:17px}.details p{font-size:11px}footer{margin-top:35px;line-height:1.7;flex-wrap:wrap}.status{padding:6px 9px;font-size:10px}.brand{font-size:17px;gap:9px}.brand-icon{width:36px;height:36px;font-size:23px}}
@media(max-width:360px){.shell{padding:20px 16px}.details{gap:10px}h1{font-size:31px}.demo-card{padding:20px}footer a{margin-left:10px}}