:root{color-scheme:light;--bg:#f3f5f4;--ink:#152d34;--muted:#6b7a7e;--line:#e0e7e5;--accent:#117a63;--dark:#122a31;--card:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #77bfae;outline-offset:4px}[hidden]{display:none!important}.app-shell{max-width:480px;margin:0 auto;padding:calc(24px + env(safe-area-inset-top)) 22px calc(20px + env(safe-area-inset-bottom))}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;gap:8px}.brand{display:flex;gap:11px;align-items:center}.brand strong{display:block;font-size:19px;letter-spacing:.4px;font-weight:750}.brand span{display:block;color:var(--muted);font-size:9px;letter-spacing:1.5px;margin-top:0}.connection{display:flex;gap:5px;align-items:center;font-size:11px;color:var(--accent);white-space:nowrap}.connection i{height:6px;width:6px;border-radius:50%;background:currentColor}.connection.offline{color:#a35e22}.connection.checking{color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:0 3px 8px #162d3403}.section-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.eyebrow{font-size:10px;letter-spacing:1.65px;color:var(--muted);font-weight:650}.pill{background:#e8f5ef;color:#17795b;border-radius:6px;padding:3px 8px;font-size:10px;white-space:nowrap}.pill.warning{background:#fff0df;color:#a4611c}.pill.neutral{background:#edf0f2;color:#637075}.age-label{font-size:14px;font-weight:500;margin:24px 0 3px;color:#63757b}.age{display:flex;align-items:baseline;gap:8px;line-height:1.25;min-height:67px;font-variant-numeric:tabular-nums;letter-spacing:-1px}.age strong{font-size:54px;font-weight:700}.age span{font-size:17px;color:#697c80;margin-right:9px;letter-spacing:0}.source-date{color:var(--muted);font-size:11px;margin:5px 0 0;font-variant-numeric:tabular-nums}.divider{height:1px;background:var(--line);margin:21px 0 15px}.metadata-row{display:flex;justify-content:space-between;gap:12px;font-size:11px;margin-top:6px}.metadata-row>span:first-child{color:var(--muted)}.metadata-row>span:last-child{text-align:right}.files-section{margin-top:25px}.files-heading h2{font-size:15px;margin:0;font-weight:650}.files-heading>span{font-size:11px}.filename-box{display:flex;align-items:flex-start;gap:8px;font-size:11px;color:var(--muted);margin:10px 0 17px}.filename-box>span:last-child{overflow-wrap:anywhere;min-width:0}.file-dot{width:5px;height:5px;background:#a4b4b1;border-radius:50%;flex-shrink:0;margin-top:7px}.download-button{width:100%;display:flex;align-items:center;gap:14px;text-align:left;min-height:84px;border:1px solid #d5dfdc;background:white;padding:15px 17px;border-radius:15px;color:var(--ink);margin-top:12px;transition:transform .15s}.download-button:active:not(:disabled){transform:scale(.987)}.image-download{background:var(--dark);color:white;border-color:var(--dark)}.file-icon{display:flex;justify-content:center;align-items:center;width:39px;height:42px;flex-shrink:0;border-radius:9px;font-size:20px;font-weight:700}.excel-icon{background:#e5f3ed;color:#218965}.image-icon{background:#29454b;color:#d8f2e9}.file-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linejoin:round}.download-copy{display:flex;flex:1;min-width:0;flex-direction:column;gap:3px}.download-copy strong{font-size:15px;font-weight:600}.download-copy small{font-size:9px;line-height:1.6;color:var(--muted)}.image-download .download-copy small{color:#abc1c2}.download-arrow{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.muted{color:var(--muted)}.download-message{font-size:11px;color:var(--accent);margin:9px 1px 0;min-height:0}.download-message:empty{display:none}.notice{background:#fff4e5;border:1px solid #f0dbb9;color:#865921;padding:13px 15px;border-radius:12px;margin-top:15px;font-size:12px}.preview-panel{margin-top:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}summary{cursor:pointer}.preview-panel summary{padding:14px 2px;font-size:12px;list-style:none}.preview-panel summary::before{content:'＋';margin-right:8px;color:var(--muted)}.preview-panel[open] summary::before{content:'−'}.preview-panel summary span{float:right;color:var(--muted);font-size:10px}.preview-body{padding:0 0 16px}.preview-body>img{width:100%;height:auto;display:block;border-radius:4px}.preview-body .button{margin-top:12px}.preview-body>p{font-size:12px}.utility-bar{display:flex;justify-content:space-between;margin-top:17px}.text-button{font-size:12px;border:0;background:transparent;color:var(--accent);padding:7px 0}.text-button.muted{color:var(--muted)}.install-button{width:100%;margin:16px 0 0;padding:12px;border:1px dashed #aabdb7;border-radius:12px;color:var(--accent);background:transparent;font-size:12px}.help{font-size:11px;color:var(--muted);margin-top:20px}.help summary{display:inline-block}.help p{line-height:1.9}.login-card h1{font-size:23px;line-height:1.5;margin:18px 0 8px}.login-card p{font-size:13px}.login-card label{display:block;font-size:12px;margin:27px 0 8px}.login-card input{width:100%;border:1px solid #cedbd6;border-radius:10px;background:#fafcfb;padding:13px;font-size:16px;color:var(--ink)}.button{width:100%;border-radius:11px;padding:13px;border:0;font-size:14px}.primary{background:var(--dark);color:white;margin-top:16px}.secondary{border:1px solid #c9d8d2;background:white;color:var(--accent)}.form-error{min-height:20px;color:#b64c3c;font-size:12px!important;margin-bottom:0}.loading{text-align:center;padding:50px 20px;color:var(--muted);font-size:13px}.spinner{display:inline-block;width:22px;height:22px;border:2px solid #d4e1dd;border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}footer{text-align:center;font-size:10px;color:#9aa7a5;margin-top:29px;letter-spacing:.5px}@media(max-width:350px){.app-shell{padding-left:15px;padding-right:15px}.card{padding:20px}.download-button{gap:9px;padding:14px}.download-copy small{font-size:8px}.age strong{font-size:47px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}