:root{font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:#152438;background:#f4f7f9;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;min-width:320px}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.site-shell{max-width:1280px;margin:0 auto;padding:0 32px}
.site-header{height:82px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dce5ea}
.brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:800;letter-spacing:-.04em;color:#101927}
.brand-mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#101927;color:#39d4b1;font-size:24px;line-height:1}
.header-label{font-size:14px;color:#667585}
main{padding:57px 0 40px}
.intro{margin-bottom:32px;max-width:760px}
.eyebrow{font-size:13px;letter-spacing:.16em;font-weight:800;color:#128c75;margin:0 0 13px}
h1{font-size:clamp(32px,4vw,54px);line-height:1.18;letter-spacing:-.055em;margin:0;color:#101927}
.intro>p:last-child{font-size:16px;line-height:1.75;color:#607082;margin:17px 0 0}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;align-items:stretch}
.panel{background:#fff;border:1px solid #dfe8ed;border-radius:20px;box-shadow:0 14px 44px rgba(15,34,48,.045);padding:30px;min-height:530px}
.section-heading{display:flex;align-items:center;gap:12px;margin-bottom:30px}
.step{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:#dff8ef;color:#08795f;font-weight:800;font-size:14px}
h2{font-size:19px;margin:0;letter-spacing:-.03em}
form{display:flex;flex-direction:column}
label{font-size:14px;font-weight:700;margin:0 0 9px}
select,textarea{width:100%;background:#f9fbfc;color:#182838;border:1px solid #cfdbe2;border-radius:10px;outline:none;transition:border-color .2s,box-shadow .2s}
select:focus,textarea:focus,input:focus{border-color:#159c7d;box-shadow:0 0 0 3px rgba(21,156,125,.13)}
select{height:48px;padding:0 15px;margin-bottom:25px;cursor:pointer}
textarea{padding:16px;resize:vertical;min-height:156px;line-height:1.65}
textarea::placeholder{color:#9baab5}
.input-help{font-size:13px;color:#718192;margin:9px 0 18px;line-height:1.5}
.error{background:#fff0ed;color:#bd3d31;padding:11px 13px;border-radius:9px;font-size:14px;margin:0 0 16px}
.primary-button{width:100%;border:0;background:#101927;color:#fff;border-radius:10px;min-height:50px;padding:12px 18px;display:flex;align-items:center;justify-content:center;gap:10px;font-weight:750;font-size:16px;text-decoration:none;transition:background .2s,transform .2s}
.primary-button:hover{background:#243950;transform:translateY(-1px)}
.primary-button:disabled{opacity:.6;cursor:wait;transform:none}
.primary-button span{color:#39d4b1;font-size:21px;font-weight:400}
.output-panel{display:flex;flex-direction:column}
.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#667787;padding:0 10px 55px}
.qr-placeholder{display:grid;place-items:center;width:175px;height:175px;border:2px dashed #c9d5dc;border-radius:17px;background:linear-gradient(135deg,#f7fafb,#f1f6f7);margin-bottom:25px}
.qr-placeholder span{font-size:76px;color:#c1d2d8;line-height:1}
.empty-state strong{font-size:17px;color:#314659}
.empty-state p{font-size:14px;margin:8px 0 0}
.result{margin:auto 0 0}
.qr-frame{width:230px;height:230px;padding:9px;background:#fff;border:1px solid #d7e2e7;border-radius:13px;margin:0 auto 23px;box-shadow:0 8px 32px rgba(15,34,48,.08)}
.qr-frame img{display:block;width:100%;height:100%}
.result-label{font-size:14px;font-weight:700;margin:0 0 8px}
.url-row{display:flex;gap:8px}
.url-row input{width:100%;min-width:0;border:1px solid #d0dce2;border-radius:9px;background:#f9fbfc;padding:0 12px;height:43px;color:#516273;font-size:13px;outline:none}
.small-button{border:1px solid #cfdce2;background:#fff;border-radius:9px;padding:0 16px;font-size:14px;font-weight:700;color:#182838;white-space:nowrap}
.small-button:hover,.secondary-button:hover{background:#edf5f4}
.result-actions{display:flex;gap:9px;margin-top:13px}
.secondary-button{flex:1;display:grid;place-items:center;border:1px solid #cad9df;border-radius:9px;background:#fff;color:#182838;min-height:43px;text-decoration:none;font-size:14px;font-weight:700;padding:8px 10px}
.small-note{font-size:13px;color:#82919d;line-height:1.6;margin:18px 0 0}
.flow-note{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px;margin:26px auto 0;color:#6c7a87;font-size:14px}
.flow-note b{color:#149d7d}
footer{font-size:12px;color:#8d9ba6;border-top:1px solid #dce5ea;padding:18px 0 28px}
.redirect-page{background:#101927;min-height:100svh;display:grid;place-items:center;padding:22px}
.redirect-card{width:min(100%,410px);padding:38px 30px;background:#fff;border-radius:21px;text-align:center;box-shadow:0 25px 80px rgba(0,0,0,.25)}
.redirect-card .brand-mark{width:60px;height:60px;border-radius:16px;font-size:39px;margin:0 auto 26px}
.redirect-card .eyebrow{margin-bottom:10px}
.redirect-card h1{font-size:30px;letter-spacing:-.04em}
.redirect-hint{color:#6b7c8a;font-size:15px;line-height:1.6;margin:13px 0 27px}
.text-link{display:inline-block;color:#107f6b;font-size:14px;font-weight:700;margin-top:23px;text-decoration:underline;text-underline-offset:4px}
.redirect-card .small-note{margin-top:28px}
@media(max-width:760px){.site-shell{padding:0 18px}.site-header{height:68px}.brand{font-size:19px}.header-label{font-size:12px}main{padding:37px 0 35px}.intro{margin-bottom:24px}.intro>p:last-child{font-size:15px}.workspace{grid-template-columns:1fr;gap:14px}.panel{min-height:0;padding:22px;border-radius:16px}.section-heading{margin-bottom:23px}.output-panel{min-height:350px}.empty-state{padding:30px 0 45px}.qr-placeholder{width:150px;height:150px}.flow-note{gap:7px;font-size:12px}.redirect-card{padding:34px 24px}}