:root{color-scheme:light;--ink:#17263b;--muted:#788397;--blue:#2b60dc;--line:#e4e9f1;--soft:#f6f8fc;--error:#ac3349;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;background:radial-gradient(ellipse at 50% 12%,#eaf0ff 0,transparent 48%),var(--soft);color:var(--ink);min-width:280px}
button,input,a{-webkit-tap-highlight-color:transparent}
button,input{font:inherit}
button,a,input{outline-offset:4px}
:focus-visible{outline:3px solid #87aafa}
button{cursor:pointer}
button:disabled{cursor:wait}
[hidden]{display:none!important}
.page{max-width:1104px;min-height:100svh;margin:0 auto;padding:32px 40px 22px;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:11px;font-size:14px;font-weight:650;letter-spacing:.3px}
.brand-mark{width:35px;height:35px;background:#fff;border:1px solid #dfe6f5;border-radius:11px;color:var(--blue);display:grid;place-items:center;box-shadow:0 2px 4px #17263b04}
main{width:100%;max-width:536px;margin:70px auto 60px}
.heading{text-align:center;margin-bottom:32px}
.eyebrow{margin:0 0 15px;color:var(--blue);font-size:12px;letter-spacing:2px;font-weight:600}
h1{margin:0;font-size:36px;line-height:1.3;letter-spacing:-1px;font-weight:700}
.subtitle{margin:14px 0 0;color:#6c7890;font-size:14px;line-height:1.8}
.tool-card{background:#fff;border:1px solid #e1e7f1;border-radius:22px;padding:32px;box-shadow:0 12px 36px #25426508,0 2px 5px #25426503}
.label-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}
label{font-size:14px;font-weight:600}
.field-tag{color:#8b96a7;font-size:11px;letter-spacing:.5px}
#uid{width:100%;height:56px;min-width:0;padding:0 15px;background:#fbfcff;border:1px solid #dbe2ed;border-radius:10px;color:var(--ink);font-size:17px;letter-spacing:.4px;transition:border-color .15s,box-shadow .15s}
#uid::placeholder{color:#a3adbd;font-size:14px;letter-spacing:0}
#uid:focus{border-color:#769bf0;box-shadow:0 0 0 3px #2b60dc0c}
#uid[aria-invalid="true"]{border-color:#d07787}
#uid:disabled{color:#718097;background:#f5f7fa;opacity:1;-webkit-text-fill-color:#718097}
.hint{margin:10px 0 24px;font-size:12px;line-height:1.7;color:var(--muted)}
.input-error{color:var(--error);font-size:13px;line-height:1.6;margin:-12px 0 17px}
.generate-button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:50px;background:var(--blue);border:1px solid var(--blue);border-radius:10px;color:white;font-weight:600;font-size:14px;transition:background .15s,transform .15s}
.generate-button:hover:not(:disabled){background:#2253c7}
.generate-button:active:not(:disabled){transform:translateY(1px)}
.generate-button:disabled{background:#537fe3;border-color:#537fe3}
.spinner{width:16px;height:16px;border:2px solid #ffffff50;border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.request-status{padding:15px 16px;margin-top:18px;border-radius:9px;background:#f5f8ff;border:1px solid #e5ecfb;font-size:12px;line-height:1.75;color:#6a7c99;overflow-wrap:anywhere}
.request-status strong{display:block;color:#43608f;font-size:13px;margin-bottom:2px;font-weight:600}
.request-status.is-error{background:#fff7f8;border-color:#f2dce1;color:#965565}
.request-status.is-error strong{color:var(--error)}
.result{border-top:1px solid var(--line);margin-top:28px;padding-top:25px}
.result-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}
.result-title-wrap{display:flex;align-items:center;gap:8px}
.check{display:grid;place-items:center;width:21px;height:21px;border-radius:50%;color:#218962;background:#eaf7f0;font-size:13px;font-weight:700}
h2{font-size:15px;line-height:1.5;margin:0;font-weight:650}
.result-tag{font-size:10px;color:#739581;background:#f0f7f2;padding:4px 7px;border-radius:5px;white-space:nowrap}
.result-target{font-size:11px;line-height:1.6;color:#8b96a7;margin:9px 0 14px;overflow-wrap:anywhere}
.result-target span{margin-left:5px;font-variant-numeric:tabular-nums;color:#66748a}
.short-url{display:block;width:100%;min-width:0;border:1px solid #e1e7f0;border-radius:8px;background:#f7f9fd;padding:14px 12px;color:#2d559c;font-size:13px;line-height:1.5;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.result-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:15px}
.copy-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:white;border:1px solid #dce3ee;border-radius:8px;color:#455770;font-size:12px;font-weight:550;min-height:39px;padding:0 15px;white-space:nowrap}
.copy-button:hover{background:#f8faff;border-color:#c6d3e8}
.open-link{color:#597195;font-size:12px;text-decoration:none;padding:10px 0;white-space:nowrap}
.open-link:hover{color:var(--blue);text-decoration:underline}
.open-link span{margin-left:4px}
.copy-status{min-height:0;margin:0;font-size:12px;line-height:1.7;color:#667b97}
.copy-status:not(:empty){margin-top:12px}
.footnote{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:20px;color:#919cad;font-size:11px}
.footnote p{margin:0;line-height:1.7}
.small-dot{width:4px;height:4px;border-radius:50%;background:#9cabbd}
footer{margin-top:auto;color:#a5afbd;text-align:center;font-size:10px;letter-spacing:1px;padding-top:12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:600px){.page{padding:23px 20px 20px}.brand{font-size:12px;gap:9px}.brand-mark{width:31px;height:31px;border-radius:10px}main{margin-top:57px;margin-bottom:46px}.heading{margin-bottom:28px}h1{font-size:30px}.eyebrow{font-size:11px;margin-bottom:14px}.subtitle{font-size:12px;margin-top:12px}.tool-card{padding:25px 23px;border-radius:18px}.hint{font-size:11px}.result-tag{font-size:9px}}
@media(max-width:360px){.page{padding-right:14px;padding-left:14px}.tool-card{padding:23px 18px}h1{font-size:28px}.subtitle{font-size:11px}.short-url{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition:none!important}}