:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .06), 0 2px 4px rgba(0, 0, 0, .04);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;color:var(--color-text);background-color:var(--color-bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);border:1px solid transparent;font-size:14px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .15s ease;white-space:nowrap}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover{background:var(--color-primary-hover)}.btn-outline{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}.btn-outline:hover{background:var(--color-bg);border-color:var(--color-text-muted)}.btn-danger{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}.btn-danger:hover{background:var(--color-danger-hover)}.btn-sm{padding:4px 10px;font-size:13px}.btn-lg{padding:12px 28px;font-size:16px}.btn:disabled{opacity:.5;cursor:not-allowed}.spinner{width:32px;height:32px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:16px;color:var(--color-text-secondary)}.loading-inline{display:flex;justify-content:center;padding:24px}.error-banner{background:#fef2f2;color:var(--color-danger);padding:12px 16px;border-radius:var(--radius);border:1px solid #fecaca;margin-bottom:16px}.error-page{text-align:center;padding:64px 16px}.app-layout{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow);position:sticky;top:0;z-index:10}.header-left{display:flex;align-items:center;gap:12px}.logo-link{text-decoration:none;color:inherit}.logo-link:hover{text-decoration:none}.app-title{font-size:18px;font-weight:600;margin:0;display:flex;align-items:center;gap:8px}.domain-badge{background:#eff6ff;color:var(--color-primary);padding:2px 10px;border-radius:12px;font-size:12px;font-weight:500}.header-right{display:flex;align-items:center;gap:12px}.user-info{color:var(--color-text-secondary);font-size:14px}.app-main{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:24px}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg)}.login-card{background:var(--color-surface);padding:48px 40px;border-radius:12px;box-shadow:var(--shadow-md);text-align:center;max-width:420px;width:100%;margin:16px}.login-card h1{font-size:24px;margin:0 0 8px}.login-subtitle{color:var(--color-text-secondary);margin:0 0 24px}.login-hint{color:var(--color-text-muted);font-size:13px;margin:0 0 24px}.message-list-page{display:flex;flex-direction:column;gap:16px}.list-header{display:flex;flex-direction:column;gap:12px}.list-title-row{display:flex;align-items:center;gap:12px}.list-title-row h2{margin:0;font-size:20px}.new-badge{background:#dcfce7;color:#166534;padding:2px 10px;border-radius:12px;font-size:12px;font-weight:600;animation:badge-pulse .3s ease-out}@keyframes badge-pulse{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}.btn-refresh{margin-left:auto}.refresh-hint{color:var(--color-text-muted);font-size:11px;white-space:nowrap}.refresh-hint kbd{background:var(--color-bg);border:1px solid var(--color-border);border-radius:3px;padding:0 4px;font-size:11px;font-family:inherit}.search-form{display:flex;gap:8px;align-items:center}.search-input{padding:6px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:14px;width:280px;font-family:inherit}.search-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}.message-table{display:flex;flex-direction:column;background:var(--color-surface);border-radius:var(--radius);border:1px solid var(--color-border);overflow:hidden}.message-row{display:grid;grid-template-columns:200px 140px 1fr auto auto;gap:12px;align-items:center;padding:12px 16px;border-bottom:1px solid var(--color-border);cursor:pointer;transition:background .1s}.message-row:last-child{border-bottom:none}.message-row:hover{background:#f1f5f9}.msg-from{font-weight:500;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-to{color:var(--color-text-muted);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.msg-subject{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;gap:6px}.attachment-icon{flex-shrink:0;font-size:11px;color:var(--color-text-muted);background:var(--color-bg);border:1px solid var(--color-border);border-radius:3px;padding:0 4px;text-transform:uppercase;letter-spacing:.5px;font-weight:500}.msg-meta{display:flex;flex-direction:column;align-items:flex-end;gap:2px;white-space:nowrap}.msg-date{font-size:13px;color:var(--color-text-secondary)}.msg-size{font-size:11px;color:var(--color-text-muted)}.btn-delete{padding:4px 8px;font-size:12px;opacity:0;transition:opacity .15s}.message-row:hover .btn-delete{opacity:1}.empty-state{text-align:center;padding:64px 16px;color:var(--color-text-secondary)}.empty-hint{color:var(--color-text-muted);font-size:13px}.load-more{display:flex;justify-content:center;padding:8px}.message-view-page{display:flex;flex-direction:column;gap:16px;height:calc(100vh - 121px);overflow:hidden}.message-toolbar{display:flex;align-items:center;justify-content:space-between}.toolbar-actions{display:flex;gap:8px}.message-header-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px 24px}.message-subject{margin:0 0 16px;font-size:20px;line-height:1.3}.message-meta-grid{display:flex;flex-direction:column;gap:6px}.meta-row{display:flex;gap:8px;font-size:14px}.meta-label{color:var(--color-text-muted);min-width:50px;font-weight:500}.meta-value{color:var(--color-text)}.verdict{display:inline-block;padding:1px 8px;border-radius:4px;font-size:12px;font-weight:500;margin-right:8px}.verdict.pass{background:#dcfce7;color:#166534}.verdict.fail{background:#fef2f2;color:#991b1b}.attachments-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px 24px}.attachments-card h3{margin:0 0 12px;font-size:15px}.attachments-list{display:flex;flex-wrap:wrap;gap:8px}.attachment-item{display:flex;align-items:center;gap:8px;padding:6px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;text-decoration:none;color:var(--color-text);transition:background .1s}.attachment-item:hover{background:var(--color-bg);text-decoration:none}.att-size{color:var(--color-text-muted)}.message-body-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;flex:1;min-height:0;display:flex;flex-direction:column}.message-iframe{width:100%;flex:1;border:none}.message-text{margin:0;padding:20px 24px;white-space:pre-wrap;word-wrap:break-word;font-family:inherit;font-size:14px;line-height:1.6;flex:1;overflow-y:auto}@media(max-width:768px){.app-header{padding:10px 16px}.app-title{font-size:15px}.domain-badge{display:none}.app-main{padding:16px}.list-header{flex-direction:column;align-items:stretch}.search-form{flex-wrap:wrap}.search-input{width:100%;flex:1}.message-row{grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:4px 8px}.msg-to{display:none}.msg-from{grid-column:1}.msg-subject{grid-column:1 / -1}.msg-meta{grid-column:2;grid-row:1}.btn-delete{opacity:1;grid-column:2;grid-row:2}.message-toolbar{flex-direction:column;gap:12px;align-items:stretch}.toolbar-actions{justify-content:flex-end}}