*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;color:#252934;background:#f4f5fa;font-family:Arial,"Microsoft YaHei",sans-serif;font-size:16px}
body.modal-open{overflow:hidden}
header{background:#4b32d6;color:#fff;display:flex;align-items:center;gap:14px;padding:18px 16px}
header button{border:0;background:transparent;color:inherit;font-size:40px;line-height:1;cursor:pointer}
h1{margin:0;font-size:23px}
header p{margin:5px 0 0;color:#e3ddff;font-size:14px}
main{max-width:800px;margin:0 auto;padding:10px}
.card{background:#fff;border-radius:14px;padding:14px;margin-bottom:14px}
h2{font-size:19px;margin:0;padding-left:10px;border-left:4px solid #4b32d6}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
button{font:inherit;cursor:pointer}
button:disabled{cursor:default;opacity:.55}
button:focus-visible{outline:3px solid #b5a6ff;outline-offset:3px}
.primary{display:block;width:100%;height:46px;border:0;border-radius:8px;color:#fff;background:#4b32d6;font-weight:600}
.secondary{border:1px solid #ded8f6;border-radius:8px;background:#fff;color:#4b32d6;padding:8px 14px}
.hint{font-size:13px;line-height:1.7;color:#808592;margin:13px 0 0}
.intro{margin:16px 0 0}
.list-status{font-size:13px;line-height:1.6;color:#808592;margin:16px 0}
.list-status.error{color:#c45436}
.region-group{margin:20px 0 0}
.region-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 10px}
.region-heading h3{margin:0;font-size:16px}
.region-heading span{font-size:12px;color:#9094a0}
.line-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}
.line-card{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0;min-height:94px;gap:9px;border:1px solid #e6e0f9;border-radius:10px;padding:11px 3px;color:#252934;background:#faf8ff;text-align:center;transition:background .15s,border-color .15s}
.line-card:hover:not(:disabled){background:#f2edff;border-color:#8c76ed}
.line-number{max-width:100%;font-size:clamp(18px,5vw,22px);line-height:1.1;font-weight:700;color:#4b32d6;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.line-number small{display:block;font-size:10px;line-height:1.2;margin-top:4px;font-weight:400;color:#8273bd}
.line-available{max-width:100%;border-radius:5px;padding:4px 3px;font-size:10px;line-height:1.2;color:#407a60;background:#edf5ef;font-variant-numeric:tabular-nums}
#result{border-radius:10px;background:#f2efff;padding:16px;margin-top:20px}
#countdown{display:block;color:#4b32d6;font-size:29px;text-align:center}
#message{line-height:1.65;margin:10px 0 0}
#result.error{background:#fff4f1}
#result.error #countdown{color:#d65a3d;font-size:19px}
#retry{margin-top:12px}
.confirm-overlay{position:fixed;inset:0;z-index:1000;background:rgba(24,20,45,.45);display:flex;align-items:center;justify-content:center;padding:24px}
.confirm-panel{width:min(100%,380px);border-radius:18px;background:#fff;padding:24px;box-shadow:0 12px 40px rgba(20,10,50,.2)}
.confirm-line{margin:22px 0 12px;color:#4b32d6;font-size:21px;font-weight:700}
.confirm-panel #confirm-description{color:#737785;line-height:1.7;font-size:14px;margin:0}
.confirm-actions{display:grid;grid-template-columns:1fr 1.4fr;gap:12px;margin-top:24px}
.confirm-actions button{height:46px}
@media(min-width:600px){main{padding:14px}.card{padding:24px}.line-grid{gap:10px}.line-card{min-height:112px;padding:16px 8px;gap:12px}.line-number{font-size:28px}.line-number small{font-size:11px}.line-available{font-size:12px;padding:5px 8px}}
@media(prefers-reduced-motion:reduce){.line-card{transition:none}}