.postoffice{--po-primary:#b45309;--po-primary-dark:#92400e;--po-primary-light:#d97706;--po-on-primary:#fffaf4;--po-primary-container:rgba(217,119,6,0.14);--po-bg:#fffaf4;--po-surface-lowest:rgba(255,250,244,0.8);--po-surface:rgba(255,250,244,0.68);--po-surface-container:rgba(217,119,6,0.1);--po-surface-high:rgba(217,119,6,0.16);--po-surface-highest:rgba(217,119,6,0.22);--po-ink:#3f352e;--po-ink-variant:#8b6b4a;--po-outline:#c9b79c;--po-outline-variant:#e6dcc8;--po-success:#4a7c59;--po-error:#c0392b;--po-warning:#b45309;--po-shadow-card:0 22px 70px rgba(126,91,64,0.14),inset 0 1px 0 rgba(255,255,255,0.58);--po-shadow-float:0 26px 80px rgba(126,91,64,0.18);--po-shadow-dialog:0 25px 60px rgba(126,91,64,0.24);--po-font-serif:var(--font-serif,"Noto Serif SC","Songti SC","SimSun",ui-serif,Georgia,serif);--po-font-sans:var(--font-serif,"Noto Serif SC","Songti SC",ui-serif,Georgia,serif);position:relative;min-height:100vh;font-family:var(--po-font-serif);color:var(--po-ink)}.frud-root.dark .postoffice{--po-primary:#f0b429;--po-primary-dark:#d97706;--po-primary-light:#fbbf24;--po-on-primary:#241b17;--po-primary-container:rgba(240,180,41,0.16);--po-surface-lowest:rgba(64,52,45,0.46);--po-surface:rgba(64,52,45,0.4);--po-surface-container:rgba(240,180,41,0.12);--po-surface-high:rgba(240,180,41,0.18);--po-surface-highest:rgba(240,180,41,0.24);--po-ink:#e7e5e4;--po-ink-variant:#c4b5a5;--po-outline:#7a6650;--po-outline-variant:#453930;--po-success:#86c08a;--po-error:#e08a7a;--po-warning:#f0b429;--po-shadow-card:0 22px 70px rgba(0,0,0,0.35),inset 0 1px 0 rgba(255,255,255,0.06);--po-shadow-float:0 26px 80px rgba(0,0,0,0.45);--po-shadow-dialog:0 25px 60px rgba(0,0,0,0.5)}.frud-root.dark .po-auth-card,.frud-root.dark .po-card,.frud-root.dark .po-paper{background:rgba(64,52,45,.46);border-color:rgba(255,246,235,.14)}.frud-root.dark .po-input{background:rgba(52,42,36,.6);border-color:var(--po-outline-variant)}.frud-root.dark .po-input::placeholder{color:#a1927f}.frud-root.dark .po-btn-ghost{background:rgba(64,52,45,.5);border-color:var(--po-outline-variant);color:var(--po-ink)}.frud-root.dark .po-btn-ghost:hover{background:rgba(240,180,41,.12);border-color:var(--po-primary-light)}.frud-root.dark .po-chip{background:rgba(64,52,45,.5);border-color:var(--po-outline-variant);color:var(--po-ink-variant)}.frud-root.dark .po-postmark{background:rgba(36,27,23,.5)}.po-gate-overlay{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#fffaf4,#f7efe7 34%,#efe0d4)}.frud-root.dark .po-gate-overlay{background:linear-gradient(180deg,#2a211c,#241b17 46%,#1b1411)}.postoffice>footer,.postoffice>main{position:relative;z-index:1}.po-paper{background:rgba(255,250,244,.8);border:1px solid rgba(255,255,255,.72);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%)}.postoffice .font-serif-cn{font-family:var(--po-font-serif)}.po-divider{border:none;border-top:1px dashed var(--po-outline-variant)}.po-postmark{display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--po-primary);color:var(--po-primary);border-radius:9999px;font-family:var(--po-font-serif);letter-spacing:.1em;padding:.35rem .85rem;font-size:.75rem;font-weight:600;transform:rotate(-8deg);background:rgba(255,250,244,.6)}.po-wax-seal{background:radial-gradient(circle at 35% 30%,#f0b429 0,var(--po-primary-light) 52%,var(--po-primary-dark) 100%);box-shadow:inset -3px -3px 8px rgba(0,0,0,.22),inset 2px 2px 5px rgba(255,255,255,.3),0 4px 10px rgba(126,91,64,.3);color:#ffffff}.po-envelope{position:relative;width:100%;aspect-ratio:1764/1337;border-radius:.75rem;background-image:url(/wax/envelope-with-wax.jpg);background-size:100% 100%;background-position:50%;background-repeat:no-repeat;box-shadow:0 8px 24px rgba(0,0,0,.22)}.po-envelope-stamp{border:2px dashed rgba(94,30,19,.55);border-radius:.25rem;background:linear-gradient(rgba(139,115,85,.05) 1px,transparent 0),rgba(245,235,220,.72);background-size:100% 8px,auto;padding:.25rem .125rem}.po-envelope-mood-tag{display:inline-flex;align-items:center;gap:.3rem;padding:.22rem .7rem;border-radius:9999px;font-size:.75rem;font-weight:500;background:var(--po-primary-container);color:var(--po-primary);border:1px solid rgba(139,46,31,.18);font-family:var(--po-font-sans)}.po-card{background:rgba(255,250,244,.8);border:1px solid rgba(255,255,255,.72);border-radius:1rem;box-shadow:var(--po-shadow-card);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%)}.po-letter-card{transition:transform .3s ease,box-shadow .3s ease}.po-letter-card:hover{transform:translateY(-3px) rotate(-.3deg);box-shadow:var(--po-shadow-float)}.po-input{width:100%;background:rgba(255,255,255,.72);border:1px solid var(--po-outline-variant);border-radius:.75rem;padding:.625rem .875rem;color:var(--po-ink);font-family:var(--po-font-sans);transition:border-color .2s,box-shadow .2s}.po-input:focus{outline:none;border-color:var(--po-primary-light);box-shadow:0 0 0 3px rgba(217,119,6,.18)}.po-input::placeholder{color:var(--po-ink-variant);opacity:.6}.po-btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:linear-gradient(135deg,var(--po-primary-light) 0,var(--po-primary) 100%);color:#ffffff;font-weight:600;padding:.625rem 1.25rem;border-radius:.75rem;transition:background .2s,transform .15s,box-shadow .2s;border:none;cursor:pointer}.po-btn-primary:hover{background:linear-gradient(135deg,var(--po-primary) 0,var(--po-primary-dark) 100%);box-shadow:var(--po-shadow-float)}.po-btn-primary:active{transform:translateY(1px)}.po-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.po-btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:rgba(255,250,244,.7);color:var(--po-ink);font-weight:500;padding:.5rem 1rem;border-radius:.75rem;border:1px solid var(--po-outline-variant);cursor:pointer;transition:background .2s,border-color .2s}.po-btn-ghost:hover{background:rgba(217,119,6,.1);border-color:var(--po-primary-light)}.po-chip{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem .85rem;border-radius:9999px;font-size:.8125rem;border:1px solid var(--po-outline-variant);background:rgba(255,250,244,.7);color:var(--po-ink-variant);cursor:pointer;transition:border-color .2s,color .2s}.po-chip:hover{border-color:var(--po-primary-light);color:var(--po-primary)}.po-chip-active{background:linear-gradient(135deg,var(--po-primary-light) 0,var(--po-primary) 100%);color:#ffffff;border-color:transparent}@keyframes poStampDrop{0%{transform:scale(3) rotate(-25deg);opacity:0}60%{transform:scale(.9) rotate(-8deg);opacity:1}to{transform:scale(1) rotate(-8deg);opacity:1}}.po-stamp-animate{animation:poStampDrop .5s cubic-bezier(.2,.8,.3,1.2) forwards}@keyframes poFadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.po-fade-up{animation:poFadeInUp .5s ease both}@keyframes poFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.po-float{animation:poFloat 4s ease-in-out infinite}.postoffice ::-webkit-scrollbar{width:10px;height:10px}.postoffice ::-webkit-scrollbar-track{background:transparent}.postoffice ::-webkit-scrollbar-thumb{background:var(--po-outline-variant);border-radius:9999px}.postoffice ::-webkit-scrollbar-thumb:hover{background:var(--po-outline)}@media (prefers-reduced-motion:reduce){.po-fade-up,.po-float,.po-stamp-animate{animation:none!important}.po-letter-card,.po-letter-card:hover{transition:none!important;transform:none!important}}.po-auth-shell{min-height:calc(100vh - 4rem);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1rem 1.5rem;position:relative;z-index:1}.po-auth-card{width:100%;max-width:26rem;background:rgba(255,250,244,.8);border:1px solid rgba(255,255,255,.72);border-radius:1.5rem;box-shadow:var(--po-shadow-card);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);padding:1.75rem 1.75rem 1.25rem;position:relative;z-index:1}.po-reminder-bar{display:flex;align-items:center;gap:.5rem;background:var(--po-primary-container);border:1px solid rgba(139,46,31,.22);border-radius:.5rem;padding:.65rem 1rem;font-size:.8125rem;line-height:1.5;margin-bottom:1.5rem}.po-reminder-bar,.po-reminder-bar a{color:var(--po-primary)}