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var(--ease) infinite}@keyframes breathe{50%{opacity:.45}}.mail-list{margin:0;padding:4px;list-style:none;max-height:calc(100vh - 360px);min-height:160px;overflow-y:auto}.mail-row{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:var(--radius);cursor:pointer;transition:background-color .12s var(--ease)}.mail-row:hover{background:var(--surface-2)}.mail-row.active{background:var(--accent-soft)}.mail-row+.mail-row{margin-top:2px}.mail-avatar{flex:none;width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--surface-3);color:var(--text-2);font-size:14px;font-weight:700}.mail-row.active .mail-avatar{background:linear-gradient(140deg,#22c3b0 0%,#0b7d73 100%);color:#fff}.mail-main{flex:1;min-width:0}.mail-line{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.mail-sender{font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mail-time{flex:none;color:var(--text-3);font-size:12px}.mail-subject{margin-top:1px;color:var(--text-2);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mail-code{flex:none;padding:3px 8px;border-radius:7px;background:var(--accent-soft);color:var(--accent-text);font-size:13px;font-weight:700;letter-spacing:.04em}.detail-card{display:grid;gap:18px;padding:26px 30px;min-height:360px}.detail-back{display:none;justify-self:start}.detail-loading{display:grid;place-items:center;min-height:240px;color:var(--text-3)}.detail-head{display:grid;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border)}.detail-subject{font-size:22px;font-weight:680;line-height:1.35;letter-spacing:-.01em}.detail-meta{display:flex;align-items:center;gap:11px}.detail-avatar{flex:none;width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(140deg,#22c3b0 0%,#0b7d73 100%);color:#fff;font-size:15px;font-weight:700}.detail-meta-text{flex:1;min-width:0;display:grid;line-height:1.35}.detail-from{font-size:14px;font-weight:600}.detail-addr{font-size:12.5px;color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.detail-time{flex:none;color:var(--text-3);font-size:12.5px}.detail-code{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border:1px solid var(--accent-border);border-radius:var(--radius);background:var(--accent-soft)}.detail-code strong{display:block;margin-top:3px;font-size:24px;font-weight:700;letter-spacing:.1em;color:var(--text)}.detail-body{color:var(--text-2);font-size:15px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere;max-height:calc(100vh - 360px);overflow-y:auto}.detail-body a{color:var(--accent-text);text-decoration:underline;text-underline-offset:2px}.detail-body mark{padding:1px 4px;border-radius:4px;background:var(--accent-soft);color:var(--accent-text);font-family:var(--font-mono);font-weight:700}.detail-empty{min-height:260px;align-content:center}.site-footer{display:flex;align-items:center;justify-content:center;gap:6px;padding:4px 20px 28px;color:var(--text-3);font-size:12.5px;text-align:center}@media (max-width: 920px){.workspace{grid-template-columns:1fr}.pane-detail{position:static}.workspace.mobile-list .pane-detail,.workspace.mobile-detail .pane-list{display:none}.detail-back{display:inline-flex}.mail-list,.detail-body{max-height:none}}@media (max-width: 640px){.site-header{padding:14px 16px 0}.container{padding:16px 16px 28px}.query-form{grid-template-columns:1fr;padding:16px}.query-submit{width:100%}.query-alert{margin:0 16px 16px}.detail-card{padding:18px 16px}.detail-meta{flex-wrap:wrap}.detail-time{width:100%;padding-left:49px}}.query-actions{display:flex;align-items:center;gap:8px}.receive-cancel{flex:none;color:var(--text-3)}.receive-cancel:hover{color:var(--danger)}.detail-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.detail-toolbar .segmented{height:34px}.translate-btn{margin-left:auto}.detail-html{margin:0;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-input);color:var(--text-2);font-family:var(--font-mono);font-size:12.5px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;overflow-y:auto;max-height:calc(100vh - 360px)}.detail-from-line{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px;color:var(--text-3);font-size:13px}.detail-from-line .detail-from{color:var(--text);font-weight:600;font-size:14px}.detail-from-line .detail-addr{overflow-wrap:anywhere}.detail-rendered{display:grid;gap:8px}.rendered-hint{display:inline-flex;align-items:center;gap:6px;color:var(--text-3);font-size:12.5px}.detail-frame{width:100%;height:min(78vh,900px);min-height:340px;border:1px solid var(--border);border-radius:var(--radius);background:#ffffff}@media (max-width: 920px){.detail-frame{height:70vh}}.workspace.expanded{grid-template-columns:1fr}.workspace.expanded .pane-list{display:none}.container:has(.workspace.expanded){max-width:100%}.workspace.expanded .detail-card{padding:18px 24px}.workspace.expanded .detail-frame{height:calc(100vh - 210px)}.workspace.expanded .detail-body{max-height:calc(100vh - 250px)}.detail-expand{flex:none;margin-left:auto}.detail-toolbar .translate-btn{margin-left:auto}.detail-toolbar .translate-btn+.detail-expand{margin-left:0}