:root{--primary:#12355a;--primary-strong:#0c2440;--on-primary:#fff;--neutral:#edeff2;--surface:#fff;--surface-sunken:#f5f7f9;--on-surface:#16181d;--muted:#5c626b;--border:#7e858f;--rule-soft:#e7eaee;--stage:#d9dde3;--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);color:var(--on-surface);background:var(--surface);flex-direction:column;min-height:100vh;margin:0;font-size:18px;line-height:1.6;display:flex}.masthead{background:var(--surface);border-bottom:3px solid var(--primary)}.masthead-in{align-items:center;max-width:900px;margin:0 auto;padding:10px 16px;display:flex}.masthead img{width:auto;height:36px;display:block}@media (width>=880px){.masthead-in{padding:12px 20px}.masthead img{height:44px}}.titlebar{background:var(--surface);border-bottom:1px solid var(--rule-soft)}.titlebar-in{max-width:900px;margin:0 auto;padding:14px 16px 12px}h1{margin:0;font-size:19px;font-weight:600;line-height:1.3}h1 .sep{color:var(--muted);padding:0 .15em;font-weight:400}@media (width>=880px){h1{font-size:22px}.titlebar-in{padding:18px 20px 14px}}.seg{border:1px solid var(--border);width:100%;max-width:460px;margin-top:12px;display:flex}.seg button{font:inherit;background:var(--surface);min-height:48px;color:var(--on-surface);cursor:pointer;border:0;flex:1;padding:12px 8px;font-size:16px;font-weight:600;line-height:1.2}.seg button+button{border-left:1px solid var(--border)}.seg button[aria-pressed=true]{color:#fff;background:#33302a}.seg button:focus-visible,.dl:focus-visible{outline-offset:2px;outline:3px solid #3d8bc9}.actionbar{background:var(--surface);border-bottom:1px solid var(--rule-soft);box-shadow:0 1px #0000000a}.actionbar-in{justify-content:space-between;align-items:center;gap:16px;max-width:900px;margin:0 auto;padding:8px 16px;display:flex}.actionbar .what{color:var(--muted);font-size:16px;display:none}.dl{background:var(--primary);color:var(--on-primary);font:inherit;justify-content:center;align-items:center;gap:10px;width:100%;min-height:56px;padding:0 24px;font-size:19px;font-weight:600;text-decoration:none;display:inline-flex}.dl:hover{background:var(--primary-strong)}.dl .size{opacity:.85;font-size:16px;font-weight:400}.dl svg{flex:none;width:20px;height:20px}@media (width>=880px){.actionbar .what{display:block}.dl{width:auto}.actionbar-in{padding:10px 20px}}.stage{background:var(--stage);flex:1;min-height:240px;padding:6px 4px 10px;scroll-margin-top:52px;position:relative}.sheetbox{width:100%;max-width:900px;margin:0 auto;position:relative;overflow:hidden}.sheetbox.is-loading{pointer-events:none}.sheetbox iframe{transform-origin:0 0;background:var(--stage);border:0;width:794px;display:block;position:absolute;top:0;left:0}@media (width>=880px){.stage{padding:20px 20px 28px}}.foot{background:var(--surface);border-top:3px solid var(--primary);text-align:center;color:var(--muted);padding:14px 16px;font-size:14px;line-height:1.5}.msg{flex:1;width:100%;max-width:640px;margin:0 auto;padding:40px 20px}.msg h1{margin-bottom:16px;font-size:28px}.msg p{margin:0 0 16px}.msg a{color:inherit;text-decoration:underline}@media (width>=880px){.msgwrap{background:var(--neutral);flex:1;padding:0;display:flex}.msg{background:var(--surface);flex:none;margin:40px auto auto;padding:40px}}.note{color:var(--muted);margin:10px 0 0;font-size:14px;line-height:1.4}.loading{z-index:1;height:min(60vh,360px);color:var(--muted);pointer-events:none;justify-content:center;align-items:center;font-size:16px;display:flex;position:absolute;top:0;left:0;right:0}.loading[hidden]{display:none}.cbar{z-index:20;background:var(--surface);border-bottom:1px solid var(--rule-soft);visibility:hidden;height:52px;transition:transform .2s,visibility 0s .2s;position:fixed;top:0;left:0;right:0;transform:translateY(-100%);box-shadow:0 1px 3px #00000014}.cbar.on{visibility:visible;transition:transform .2s;transform:none}.cbar-in{justify-content:space-between;align-items:center;gap:12px;max-width:900px;height:52px;margin:0 auto;padding:0 12px 0 16px;display:flex}.ctitle{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:16px;font-weight:600;overflow:hidden}.cdl{background:var(--primary);height:44px;color:var(--on-primary);white-space:nowrap;flex:none;align-items:center;padding:0 16px;font-size:16px;font-weight:600;text-decoration:none;display:inline-flex}.cdl:hover{background:var(--primary-strong)}.cdl:focus-visible,.cseg button:focus-visible,.rot button:focus-visible{outline-offset:2px;outline:3px solid #3d8bc9}.cseg{border:1px solid var(--border);flex:1;min-width:0;max-width:240px;display:flex}.cseg button{font:inherit;background:var(--surface);height:44px;color:var(--on-surface);cursor:pointer;white-space:nowrap;border:0;flex:1;padding:0 6px;font-size:14px;font-weight:600}.cseg button+button{border-left:1px solid var(--border)}.cseg button[aria-pressed=true]{color:#fff;background:#33302a}.rot{background:var(--surface-sunken);border-bottom:1px solid var(--rule-soft);color:var(--muted);justify-content:space-between;align-items:center;gap:8px;padding:8px 8px 8px 16px;font-size:14px;line-height:1.4;display:none}.rot button{width:44px;height:44px;color:var(--muted);cursor:pointer;background:0 0;border:0;flex:none;margin:-8px 0;font-size:24px;line-height:1}@media (width<=600px) and (orientation:portrait){.rot{display:flex}.rot[hidden]{display:none}}.root{display:contents}.phone{white-space:nowrap}.retry{background:var(--primary);min-height:48px;color:var(--on-primary);font:inherit;cursor:pointer;border:0;justify-content:center;align-items:center;padding:0 24px;font-size:18px;font-weight:600;display:inline-flex}.retry:hover{background:var(--primary-strong)}.retry:focus-visible{outline-offset:2px;outline:3px solid #3d8bc9}