:root{--bg:#f5f1e8;--bg-card:#faf8f3;--ink:#1a1a1a;--ink-soft:#4a4036;--ink-muted:#8a7f72;--brown:#6b4f3a;--border:#2a2a2a;--shadow:0 10px 28px #281e141f;--radius:16px;--font-serif:"Noto Serif SC", "Source Serif 4", "Songti SC", "SimSun", serif;color:var(--ink);background:var(--bg);font-family:var(--font-serif);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:radial-gradient(ellipse at top, #ffffff8c, transparent 55%), var(--bg);min-height:100dvh}a{color:inherit;text-decoration:none}button{font:inherit}.app-shell{justify-content:center;min-height:100dvh;display:flex}.page{width:100%;max-width:420px;padding:18px 18px 36px;position:relative}.page-center{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:60dvh;display:flex}.topbar{justify-content:space-between;align-items:baseline;padding:4px 2px 16px;display:flex}.brand{letter-spacing:.04em;font-size:1.35rem;font-weight:700}.date{color:var(--ink);letter-spacing:.06em;font-size:1.05rem}.subnav{color:var(--ink-soft);margin:-6px 0 12px;font-size:.92rem}.postcard{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #3c2d1e0f;overflow:hidden}.postcard-image-wrap{aspect-ratio:4/3.2;background:#e8e0d4;position:relative;overflow:hidden}.postcard-image{object-fit:cover;width:100%;height:100%;display:block}.image-meta{color:#2a241c;letter-spacing:.12em;text-shadow:0 1px #ffffff59;pointer-events:none;font-size:.72rem;position:absolute;top:12px;left:12px}.postcard-body{text-align:center;padding:18px 18px 16px}.rule,.heart-rule{justify-content:center;align-items:center;gap:8px;margin:0 auto 12px;display:flex}.rule-line{background:#3c2d1e59;width:56px;height:1px}.rule-line.thin{background:#3c2d1e40;width:40px}.rule-dot{background:#3c2d1e73;border-radius:50%;width:4px;height:4px}.heart{color:#a07060;font-size:.75rem;line-height:1}.card-title{letter-spacing:.06em;margin:0 0 14px;font-size:1.28rem;font-weight:700}.card-caption{color:var(--brown);margin:0 0 14px;font-size:1.05rem;font-weight:600;line-height:1.65}.postcard-footer{text-align:left;justify-content:space-between;align-items:flex-end;gap:10px;margin-top:8px;display:flex}.tip-box{color:var(--ink-soft);border:1px solid #3c2d1e59;border-radius:4px;max-width:68%;padding:6px 8px;font-size:.72rem;line-height:1.4}.tip-label{margin-right:2px;font-weight:700}.seal{width:54px;height:54px;color:var(--ink-soft);background:#ffffff59;border:1.5px solid #3c2d1e73;border-radius:50%;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;display:flex}.seal-globe{font-size:.85rem;line-height:1}.seal-text{letter-spacing:.04em;margin-top:2px;font-size:.58rem}.actions{grid-template-columns:1fr 1fr;gap:12px;margin-top:18px;display:grid}.btn{appearance:none;cursor:pointer;letter-spacing:.08em;border-radius:10px;padding:14px 12px;transition:transform .12s,background .15s,opacity .15s}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6;cursor:wait}.btn-primary{color:#fff;background:#2a2a2a;border:1px solid #2a2a2a}.btn-primary.is-ok{background:#1f1f1f;font-size:1.15rem}.btn-ghost{color:var(--ink);border:1.5px solid var(--border);background:0 0}.footer-link{text-align:center;letter-spacing:.04em;margin-top:22px;font-size:.95rem}.footer-link a{color:var(--ink-soft)}.footer-link a:hover{color:var(--ink)}.toast{color:#fff;letter-spacing:.06em;z-index:50;pointer-events:none;white-space:nowrap;background:#282828eb;border-radius:999px;padding:10px 18px;font-size:.88rem;position:fixed;bottom:28%;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #0000002e}.muted{color:var(--ink-muted)}.error{color:#8b3a3a}.mock-note{color:var(--ink-muted);text-align:center;margin:10px 0 0;font-size:.75rem}.text-link{color:var(--brown);border-bottom:1px solid #6b4f3a59}.history-page.page{max-width:1280px;padding:16px 14px 40px}.history-topbar{justify-content:space-between;align-items:center;padding:4px 2px 14px;display:flex}.back-chevron{color:var(--ink);width:32px;padding:0;font-size:28px;line-height:1;text-decoration:none}.history-title{letter-spacing:.06em;text-align:center;margin:0;font-size:1.15rem;font-weight:700}.topbar-spacer{width:32px}.history-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.history-card{background:var(--bg-card);color:inherit;box-shadow:var(--shadow);border:1px solid #3c2d1e0f;border-radius:14px;flex-direction:column;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex;overflow:hidden}.history-card:hover{transform:translateY(-2px);box-shadow:0 14px 32px #281e1429}.history-card-img{aspect-ratio:4/3;background:#e8e0d4;overflow:hidden}.history-card-img img{object-fit:cover;width:100%;height:100%;display:block}.history-card-meta{padding:10px 10px 12px}.history-card-city{letter-spacing:.04em;font-size:.95rem;font-weight:700}.history-card-caption{color:var(--ink-soft);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-top:4px;font-size:.72rem;line-height:1.35;display:-webkit-box;overflow:hidden}.history-card-date{color:var(--ink-muted);letter-spacing:.04em;margin-top:6px;font-size:.68rem}@media (width>=640px){.history-page.page{padding:20px 20px 48px}.history-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}}@media (width>=900px){.history-page.page{padding:24px 24px 56px}.history-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.history-card-caption{font-size:.74rem}}@media (width>=1200px){.history-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}}.pad{padding:12px 4px}@media (width>=480px){.page{padding-top:28px}}