:root{color-scheme:light;font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#142739;background:#f1f5f8}*{box-sizing:border-box}body{margin:0}main{max-width:1100px;margin:auto;padding:28px 28px 20px}header{display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{font-size:14px;letter-spacing:.08em;font-weight:750}.badge{border:1px solid #d7e2eb;border-radius:30px;padding:7px 12px;font-size:12px;color:#536c80}.intro{padding:62px 0 32px}.eyebrow{font-size:12px;letter-spacing:.24em;color:#356b8e;font-weight:700}h1{font-size:clamp(30px,5vw,44px);line-height:1.3;letter-spacing:-.04em;margin:15px 0}p{line-height:1.75}.intro>p:last-child,.muted{color:#63798b}.layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(270px,1fr);gap:22px;align-items:start}.card{background:#fff;border:1px solid #dde6ec;border-radius:20px;padding:28px;box-shadow:0 8px 32px #18384c05}h2{font-size:19px;margin:0 0 10px}.card>p{margin-top:0;font-size:14px}label{display:block;font-size:13px;font-weight:650;margin:20px 0 8px}input{font:inherit;width:100%;padding:12px;border:1px solid #d5e0e7;border-radius:9px;background:#fff;min-width:0}input:focus{outline:2px solid #90b7ce;outline-offset:2px}.drop{display:flex;flex-direction:column;gap:8px;align-items:center;text-align:center;padding:30px 15px;border:1px dashed #8aadc3;background:#f4f9fc;border-radius:12px;cursor:pointer}.drop span{font-size:12px;font-weight:400;color:#63798b}.drop input{font-size:12px;width:100%;background:transparent;border:0;padding:8px 0 0}.drop strong{overflow-wrap:anywhere}details{margin-top:20px}summary{font-size:13px;color:#476a83;cursor:pointer}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0 16px}button,.button{display:inline-block;border:0;border-radius:9px;background:#205e82;color:#fff;padding:12px 16px;font:inherit;font-size:13px;font-weight:650;text-decoration:none;cursor:pointer}button:disabled{opacity:.45;cursor:default}.secondary{background:#edf3f7;color:#355b74}progress{display:block;width:100%;height:9px;accent-color:#287ca5;border:0}.mono{font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}#status{margin:12px 0 0;font-size:13px;overflow-wrap:anywhere}#files{margin-top:20px}.file-item{border-top:1px solid #e6edf2;padding:16px 0}.file-item strong{font-size:13px;overflow-wrap:anywhere}.file-item p{font-size:12px;margin:5px 0 10px;color:#60788a}.file-item button{font-size:12px;padding:8px 10px}.success{color:#177454;margin-top:25px!important;font-weight:650}#result{border-top:1px solid #e3ebf0;margin-top:22px}#result button{margin-top:10px}hr{border:0;border-top:1px solid #e5edf2;margin:28px 0}.small{font-size:12px!important}aside input{font-size:11px;margin-bottom:10px}footer{text-align:center;font-size:12px;color:#8295a5;padding:30px 0 10px}@media(max-width:750px){main{padding:20px 16px}.intro{padding:35px 0 22px}.layout{grid-template-columns:1fr}.card{padding:22px}h1{font-size:31px}}