*,:before,:after{box-sizing:border-box}html,body,#root{height:100%;min-height:100%;margin:0}body{color:var(--cps-ink);background:var(--cps-bg);-webkit-font-smoothing:antialiased;font-family:PingFang SC,Hiragino Sans GB,Noto Sans SC,Microsoft YaHei,sans-serif}button,input,textarea,select{font:inherit;color:inherit}a{color:var(--cps-primary);text-decoration:none}a:hover{text-decoration:underline}.app-loading{min-height:100vh;color:var(--cps-slate);background:var(--cps-bg);place-items:center;display:grid}.login-page{background:radial-gradient(700px 420px at 15% 10%, #2dd4bf38, transparent 55%), radial-gradient(600px 400px at 90% 20%, #0284c72e, transparent 50%), linear-gradient(145deg, var(--cps-login-from), var(--cps-login-via), var(--cps-login-to));color:#e2e8f0;place-items:center;min-height:100vh;padding:32px 16px;display:grid}.login-card{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffff14;border:1px solid #ffffff24;border-radius:22px;width:min(420px,100%);padding:32px 28px 28px;box-shadow:0 24px 60px #00000059}.login-brand{letter-spacing:.28em;color:#99f6e4;margin-bottom:10px;font-size:12px;font-weight:700}.login-title{color:#f8fafc;margin:0 0 8px;font-family:Songti SC,STSong,Noto Serif SC,serif;font-size:36px}.login-sub{color:#94a3b8;margin:0 0 24px;font-size:14px}.field{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.field label{color:#94a3b8;font-size:12px}.field input,.field textarea,.compose-field input,.compose-field textarea,.search-box input{border:1px solid var(--cps-border);background:var(--cps-field);border-radius:12px;outline:none;width:100%;padding:12px 14px;transition:border-color .15s,box-shadow .15s}.login-page .field input{color:#f8fafc;background:#0f172a73;border-color:#94a3b847}.field input:focus,.compose-field input:focus,.compose-field textarea:focus,.search-box input:focus{border-color:var(--cps-primary);box-shadow:0 0 0 3px var(--cps-primary-soft)}.btn{cursor:pointer;border:0;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:11px 18px;font-weight:650;transition:transform .15s,opacity .15s,background .15s;display:inline-flex}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:linear-gradient(120deg, var(--cps-primary), var(--cps-primary-deep));color:#fff;box-shadow:0 10px 24px color-mix(in srgb, var(--cps-primary) 35%, transparent)}.btn-primary:hover:not(:disabled){transform:translateY(-1px)}.btn-ghost{color:var(--cps-slate700);border:1px solid var(--cps-border);background:0 0}.btn-danger{background:var(--cps-danger-soft);color:var(--cps-danger)}.login-btn{width:100%;margin-top:8px}.error-banner{background:var(--cps-danger-soft);color:var(--cps-danger);border-radius:10px;margin-bottom:12px;padding:10px 12px;font-size:13px}.login-page .error-banner{color:#fecdd3;background:#e11d482e}.shell{background:var(--cps-bg);grid-template-columns:260px 1fr;height:100vh;display:grid}.sidebar{border-right:1px solid var(--cps-border);background:var(--cps-surface);flex-direction:column;padding:20px 14px;display:flex}.sidebar-brand{padding:4px 10px 18px}.sidebar-brand .mark{letter-spacing:.24em;color:var(--cps-primary);font-size:11px;font-weight:700}.sidebar-brand h1{color:var(--cps-ink);align-items:center;gap:10px;margin:6px 0 0;font-family:Songti SC,STSong,Noto Serif SC,serif;font-size:28px;font-weight:700;display:flex}.folder-list{flex:1;margin:0;padding:0;list-style:none;overflow:auto}.folder-list button{text-align:left;cursor:pointer;width:100%;color:var(--cps-slate700);background:0 0;border:0;border-radius:14px;justify-content:space-between;align-items:center;gap:8px;margin-bottom:4px;padding:11px 12px;display:flex}.folder-list button:hover{background:var(--cps-primary-soft)}.folder-list button.active{background:var(--cps-primary-soft);color:var(--cps-primary-deep);font-weight:650}.unseen-pill{background:var(--cps-unread,var(--cps-primary));color:#fff;font-variant-numeric:tabular-nums;min-width:22px;height:22px;box-shadow:0 0 0 2px color-mix(in srgb, var(--cps-unread,var(--cps-primary)) 25%, transparent);border-radius:999px;justify-content:center;align-items:center;padding:0 7px;font-size:12px;font-weight:800;line-height:1;display:inline-flex}.unseen-pill-lg{min-width:26px;height:26px;padding:0 9px;font-size:13px}.topbar-title{flex-wrap:wrap;align-items:center;gap:10px;margin:0;display:inline-flex}.unread-jump{cursor:pointer;color:#fff;background:var(--cps-unread,var(--cps-primary));border:0;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700}.unread-jump:hover{filter:brightness(1.05)}.sidebar-foot{border-top:1px solid var(--cps-border);flex-wrap:wrap;gap:8px;padding-top:12px;display:flex}.sidebar-foot .btn{border-radius:12px;flex:40%;padding:10px 12px}.depot-row{align-items:flex-start}.depot-row>div:last-child{flex-shrink:0}.main{flex-direction:column;min-width:0;min-height:0;display:flex}.topbar{border-bottom:1px solid var(--cps-border);background:color-mix(in srgb, var(--cps-surface) 88%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);align-items:center;gap:12px;padding:16px 20px;display:flex}.topbar h2{margin:0;font-size:18px;font-weight:700}.search-box{flex:1;max-width:420px;margin-left:auto}.content{flex:1;min-height:0;padding:16px 20px 28px;overflow:auto}.msg-list{flex-direction:column;gap:10px;display:flex}.msg-card{background:var(--cps-surface);border:1px solid var(--cps-border);box-shadow:var(--cps-shadow);cursor:pointer;text-align:left;border-radius:16px;grid-template-columns:10px 1fr auto;align-items:start;gap:12px;width:100%;padding:14px 16px;transition:transform .12s,border-color .12s;display:grid}.msg-card:hover{border-color:color-mix(in srgb, var(--cps-primary) 35%, var(--cps-border));transform:translateY(-1px)}.msg-card.unread .subject{font-weight:700}.unread-dot{background:var(--cps-unread);border-radius:50%;width:8px;height:8px;margin-top:7px}.msg-card:not(.unread) .unread-dot{background:0 0}.msg-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:4px;display:flex}.from-name{color:var(--cps-ink);font-size:14px;font-weight:600}.company-badge{color:#fff;background:var(--cps-badge);border-radius:999px;align-items:center;padding:2px 7px;font-size:10px;font-weight:700;display:inline-flex}.subject{color:var(--cps-ink);margin:0 0 4px;font-size:14px}.snippet-date{color:var(--cps-slate);font-size:12px}.star{cursor:pointer;color:var(--cps-slate400);background:0 0;border:0;padding:4px;font-size:18px;line-height:1}.star.on{color:#f59e0b}.empty,.status-line{text-align:center;color:var(--cps-slate);padding:40px 12px}.detail{max-width:920px;margin:0 auto}.detail-actions{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.detail-card{background:var(--cps-surface);border:1px solid var(--cps-border);box-shadow:var(--cps-shadow);border-radius:18px;padding:22px}.detail-card h1{margin:0 0 14px;font-size:24px;line-height:1.3}.detail-headers{border-bottom:1px solid var(--cps-border);color:var(--cps-slate);gap:6px;margin-bottom:18px;padding-bottom:16px;font-size:13px;display:grid}.detail-headers strong{color:var(--cps-ink);font-weight:600}.attachments{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.att-chip{border:1px solid var(--cps-border);background:var(--cps-field);cursor:pointer;border-radius:999px;padding:8px 12px;font-size:12px}.mail-body{color:var(--cps-ink);overflow-wrap:anywhere;font-size:15px;line-height:1.7}.mail-body pre{white-space:pre-wrap;margin:0;font-family:inherit}.mail-body iframe{background:0 0;border:0;width:100%;min-height:420px}.compose-page{max-width:880px;margin:0 auto}.compose-card{background:var(--cps-surface);border:1px solid var(--cps-border);box-shadow:var(--cps-shadow);border-radius:18px;padding:20px}.compose-field{margin-bottom:12px}.compose-field label{color:var(--cps-slate);align-items:center;gap:8px;margin-bottom:6px;font-size:12px;display:flex}.compose-field textarea.body{resize:vertical;border-radius:14px;min-height:280px}.compose-actions{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.file-list{flex-direction:column;gap:6px;margin:8px 0 12px;display:flex}.file-row{background:var(--cps-field);border-radius:10px;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;font-size:13px;display:flex}.hint{color:var(--cps-slate);margin:0 0 10px;font-size:12px}.dir-panel{border:1px solid var(--cps-border);background:var(--cps-surface);border-radius:14px;margin:8px 0 14px;overflow:hidden}.dir-panel .dir-head{border-bottom:1px solid var(--cps-border);justify-content:space-between;align-items:center;padding:10px 12px;font-weight:650;display:flex}.dir-item{text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;width:100%;padding:10px 12px;display:flex}.dir-item:hover{background:var(--cps-primary-soft)}.avatar{background:var(--cps-primary-soft);width:34px;height:34px;color:var(--cps-primary-deep);border-radius:50%;flex-shrink:0;place-items:center;font-weight:700;display:grid}.settings-page{max-width:720px;margin:0 auto}.settings-card{background:var(--cps-surface);border:1px solid var(--cps-border);box-shadow:var(--cps-shadow);border-radius:18px;margin-bottom:14px;padding:20px}.settings-card h3{margin:0 0 12px;font-size:16px}.theme-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;display:grid}.theme-opt{border:1px solid var(--cps-border);background:var(--cps-field);cursor:pointer;text-align:left;border-radius:14px;padding:12px}.theme-opt.active{border-color:var(--cps-primary);box-shadow:inset 0 0 0 1px var(--cps-primary);background:var(--cps-primary-soft)}.theme-opt strong{margin-bottom:4px;display:block}.theme-opt span{color:var(--cps-slate);font-size:12px}@media (width<=860px){.shell{grid-template-columns:1fr}.sidebar{display:none}.sidebar.mobile-open{z-index:40;width:min(280px,86vw);display:flex;position:fixed;inset:0 auto 0 0;box-shadow:20px 0 50px #00000040}}