:root{--navy:#0f2e5e;--navy2:#173f7a;--bg:#f3f6fb;--card:#fff;--text:#172236;--muted:#617089;--line:#dbe3ef;--danger:#a5243d;--shadow:0 10px 28px rgba(20,46,92,.10);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color-scheme:light}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}.app-header{position:sticky;top:0;z-index:20;background:var(--navy);color:#fff;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;display:flex;align-items:center;justify-content:space-between;gap:12px;box-shadow:0 3px 12px rgba(0,0,0,.15)}.brand{display:flex;align-items:center;gap:10px}.brand-icon{width:42px;height:42px;border-radius:10px}.brand strong{display:block;font-size:1.05rem}.brand span{display:block;font-size:.78rem;opacity:.8}.tabs{position:sticky;top:62px;z-index:15;background:#fff;display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}.tab{appearance:none;border:0;background:transparent;padding:13px 8px;font-weight:700;color:var(--muted);border-bottom:3px solid transparent}.tab.active{color:var(--navy);border-bottom-color:var(--navy)}main{max-width:980px;margin:0 auto;padding:18px 14px 40px}.panel{display:none}.panel.active{display:block}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}.hero{background:linear-gradient(145deg,#fff,#f7f2ff 52%,#eef8ff)}h1{font-size:1.55rem;margin:.1rem 0 .5rem}h2{font-size:1.08rem;margin:.15rem 0 .8rem}p{line-height:1.5}.notice{border-left:4px solid #7f52ff;background:#f6f3ff;padding:11px 12px;border-radius:10px;margin-top:14px}.button-row,.result-actions{display:flex;gap:10px;flex-wrap:wrap}.primary,.secondary,.ghost,.file-button{border:0;border-radius:12px;padding:11px 15px;font-weight:750;cursor:pointer;font:inherit}.primary{color:white;background:linear-gradient(110deg,#8255ff,#dd4ecb,#1986e7)}.secondary{color:#fff;background:var(--navy2)}.ghost{background:#edf2f8;color:var(--navy)}.wide{width:100%;margin-top:14px;font-size:1.02rem}.file-button{display:inline-flex;align-items:center;justify-content:center}.file-button input{display:none}.summary{margin-top:12px;padding:10px 12px;border-radius:10px;background:#f5f7fb;color:var(--muted)}.file-list,.restore-list,.history-list{margin-top:12px;display:grid;gap:8px}.file-row,.history-row,.restore-row{border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px}.file-info{min-width:0}.file-name{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta{font-size:.82rem;color:var(--muted)}.remove-btn{border:0;background:#fff0f3;color:var(--danger);border-radius:9px;padding:7px 9px;font-weight:700}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:grid;gap:6px;font-weight:700}input[type=text],input[type=password]{width:100%;border:1px solid #becadd;border-radius:11px;padding:11px 12px;font:inherit;background:#fff}.toggle-row{display:flex;align-items:center;gap:9px;margin-bottom:12px}.toggle-row input{width:20px;height:20px}.small{font-size:.86rem;color:var(--muted)}progress{width:100%;height:15px;margin-top:14px}.status{margin-top:12px;font-weight:650}.result-actions{margin-top:12px}.restore-password{margin-top:14px;display:grid;grid-template-columns:1fr auto;align-items:end;gap:10px}.preview{max-width:130px;max-height:90px;border-radius:8px;display:block}.extract-btn{white-space:nowrap}.row-between{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.help-copy code{background:#eef1f6;padding:2px 5px;border-radius:5px}footer{text-align:center;color:var(--muted);padding:0 16px calc(24px + env(safe-area-inset-bottom));font-size:.84rem}@media(max-width:640px){.grid-2{grid-template-columns:1fr}.restore-password{grid-template-columns:1fr}.row-between{display:block}.row-between button{margin-bottom:10px}.tabs{top:62px}.card{padding:16px;border-radius:15px}.file-row,.restore-row,.history-row{align-items:flex-start}.restore-row{flex-direction:column}.preview{max-width:100%;max-height:180px}.app-header .ghost{padding:8px 10px}}