{{define "styles"}}
<style>
    /* ===== MailGo 设计系统（参考 QQ 邮箱布局） ===== */
    :root {
        --primary: #1677ff;
        --primary-hover: #0e5fd8;
        --primary-soft: #e8f1ff;
        --orange: #ff9500;
        --orange-hover: #f08800;
        --danger: #e34d59;
        --danger-soft: #fde8e8;
        --success: #34a853;
        --success-soft: #e6f7ec;
        --sidebar-bg: #f6f8fc;
        --topbar-h: 56px;
        --border: #e5e6eb;
        --border-light: #f0f1f3;
        --text: #1f2329;
        --text-2: #646a73;
        --text-3: #8f959e;
        --radius: 8px;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
            "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        background: #f6f8fc; color: var(--text); font-size: 14px;
    }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }
    input, textarea, select, button { font-family: inherit; }
    input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--primary); cursor: pointer; flex-shrink: 0; }
    svg { flex-shrink: 0; }
    a, button { touch-action: manipulation; }

    /* ---------- 顶部导航栏 ---------- */
    .topbar {
        position: fixed; top: 0; left: 0; right: 0; height: var(--topbar-h);
        background: #fff; border-bottom: 1px solid var(--border);
        display: flex; align-items: center; gap: 28px; padding: 0 20px; z-index: 100;
    }
    .logo { display: flex; align-items: center; gap: 9px; }
    .logo-icon {
        width: 34px; height: 34px; border-radius: 9px; color: #fff; font-size: 17px;
        background: linear-gradient(135deg, #1677ff, #4aa3ff);
        display: inline-flex; align-items: center; justify-content: center;
        box-shadow: 0 2px 6px rgba(22, 119, 255, 0.35);
    }
    .logo-text { font-size: 19px; font-weight: 700; color: var(--primary); letter-spacing: 0.5px; }
    .logo-text em { font-style: normal; font-weight: 400; font-size: 13px; color: var(--text-2); margin-left: 3px; }
    .topbar-search {
        flex: 0 1 340px; height: 34px; display: none; align-items: center; gap: 8px;
        background: #f2f3f5; border: 1px solid transparent; border-radius: 17px;
        padding: 0 14px; color: var(--text-3);
    }
    body.page-list .topbar-search { display: flex; }
    .topbar-search:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12); }
    .topbar-search input { border: none; outline: none; background: transparent; flex: 1; font-size: 13px; color: var(--text); }
    .topbar-search input::placeholder { color: var(--text-3); }
    .topbar-right { margin-left: auto; display: flex; align-items: center; gap: 18px; }
    .topbar-link { color: var(--text-2); font-size: 13.5px; }
    .topbar-link:hover { color: var(--primary); }
    .user-chip { display: flex; align-items: center; gap: 8px; }
    .user-email { font-size: 13px; color: var(--text-2); max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .logout-form { display: inline-flex; }
    .icon-btn {
        display: inline-flex; align-items: center; justify-content: center;
        width: 30px; height: 30px; border: 1px solid var(--border); border-radius: 6px;
        background: #fff; color: var(--text-2); cursor: pointer;
    }
    .icon-btn:hover { color: var(--danger); border-color: var(--danger); }

    /* ---------- 头像 ---------- */
    .avatar {
        width: 36px; height: 36px; border-radius: 50%;
        display: inline-flex; align-items: center; justify-content: center;
        font-size: 15px; font-weight: 600; flex-shrink: 0; user-select: none;
    }
    .avatar-sm { width: 28px; height: 28px; font-size: 12.5px; }

    /* ---------- 整体布局 ---------- */
    .app-body { display: flex; min-height: 100vh; padding-top: var(--topbar-h); }

    /* ---------- 左侧文件夹导航 ---------- */
    .mail-sidebar {
        width: 200px; flex-shrink: 0;
        background: var(--sidebar-bg); border-right: 1px solid var(--border);
        padding: 16px 12px; display: flex; flex-direction: column; gap: 14px;
        position: sticky; top: var(--topbar-h); height: calc(100vh - var(--topbar-h));
    }
    .compose-btn {
        display: flex; align-items: center; justify-content: center; gap: 7px;
        height: 38px; border-radius: 19px; color: #fff; font-size: 14.5px; font-weight: 600;
        background: linear-gradient(135deg, #ffa940, #ff9500);
        box-shadow: 0 2px 8px rgba(255, 149, 0, 0.35);
        transition: transform 0.1s, box-shadow 0.1s;
    }
    .compose-btn:hover { background: linear-gradient(135deg, #ff9d2e, #f08800); box-shadow: 0 3px 10px rgba(255, 149, 0, 0.45); transform: translateY(-1px); }
    .folder-nav { display: flex; flex-direction: column; gap: 3px; }
    .folder {
        display: flex; align-items: center; gap: 10px;
        height: 36px; padding: 0 10px; border-radius: 7px;
        color: var(--text-2); font-size: 13.5px; position: relative;
    }
    .folder:hover { background: #eef1f6; color: var(--text); }
    .folder.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
    .folder.active::before {
        content: ""; position: absolute; left: -12px; top: 9px; bottom: 9px;
        width: 3px; border-radius: 2px; background: var(--primary);
    }
    .folder .badge {
        margin-left: auto; min-width: 20px; height: 20px; padding: 0 6px;
        border-radius: 10px; background: #ff4d4f; color: #fff;
        font-size: 11px; line-height: 20px; text-align: center; font-weight: 600;
    }
    .folder .count { margin-left: auto; color: var(--text-3); font-size: 12px; }
    .sidebar-footer { margin-top: auto; border-top: 1px solid var(--border-light); padding-top: 12px; display: flex; flex-direction: column; gap: 3px; }

    /* ---------- 主内容区 ---------- */
    .mail-main { flex: 1; min-width: 0; background: #fff; display: flex; flex-direction: column; }

    /* ---------- 列表工具条 ---------- */
    .list-toolbar {
        display: flex; align-items: center; gap: 10px;
        padding: 10px 18px; border-bottom: 1px solid var(--border-light); background: #fff;
    }
    .tb-btn {
        display: inline-flex; align-items: center; gap: 6px;
        height: 30px; padding: 0 11px; border: 1px solid var(--border); border-radius: 6px;
        background: #fff; color: var(--text-2); font-size: 13px; cursor: pointer;
    }
    .tb-btn:hover { color: var(--primary); border-color: var(--primary); }
    .tb-btn.danger:hover { color: var(--danger); border-color: var(--danger); }
    .check-all { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-2); cursor: pointer; user-select: none; }
    .toolbar-spacer { flex: 1; }
    .page-info { font-size: 13px; color: var(--text-3); }

    /* ---------- 邮件列表 ---------- */
    .mail-list { flex: 1; overflow-y: auto; }
    .mail-row {
        display: flex; align-items: center; gap: 10px;
        padding: 0 18px; height: 54px; border-bottom: 1px solid var(--border-light);
        cursor: pointer; transition: background 0.08s;
        background: #fff;
    }
    .mail-row:not(.unread) { background: #fbfcfe; }
    .mail-row:hover { background: #f2f6ff; }
    .mail-row.selected { background: var(--primary-soft); }
    .cell-check { display: flex; align-items: center; }
    .cell-avatar { flex: 0 0 auto; }
    .cell-from {
        width: 150px; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
        font-size: 13.5px; color: var(--text-2);
    }
    .mail-row.unread .cell-from { color: var(--text); font-weight: 600; }
    .cell-subject-wrap { display: flex; align-items: center; gap: 7px; flex: 0 1 36%; min-width: 150px; }
    .unread-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); flex-shrink: 0; }
    .cell-subject {
        overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
        font-size: 13.5px; color: var(--text-2);
    }
    .mail-row.unread .cell-subject { color: var(--text); font-weight: 600; }
    .cell-snippet {
        flex: 1; min-width: 60px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
        font-size: 12.5px; color: var(--text-3);
    }
    .cell-date {
        width: 78px; flex-shrink: 0; text-align: right;
        font-size: 12.5px; color: var(--text-3);
    }
    .mail-row.unread .cell-date { color: var(--text-2); }
    .row-del { opacity: 0; transition: opacity 0.12s; }
    .mail-row:hover .row-del { opacity: 1; }
    .empty-tip { padding: 90px 0; text-align: center; color: var(--text-3); font-size: 14px; }
    .empty-tip .empty-icon { font-size: 46px; display: block; margin-bottom: 14px; opacity: 0.5; }

    /* ---------- 列表底部分页 ---------- */
    .list-footer {
        display: flex; align-items: center; gap: 12px;
        padding: 10px 18px; border-top: 1px solid var(--border-light);
        font-size: 13px; color: var(--text-3); background: #fff;
    }
    .pager { margin-left: auto; display: flex; align-items: center; gap: 6px; }
    .page-btn {
        height: 28px; padding: 0 11px; border: 1px solid var(--border); border-radius: 6px;
        background: #fff; color: var(--text-2); font-size: 13px;
        display: inline-flex; align-items: center; gap: 4px;
    }
    .page-btn:hover:not(.disabled) { color: var(--primary); border-color: var(--primary); }
    .page-btn.disabled { opacity: 0.45; cursor: not-allowed; }
    .page-num { font-size: 13px; }

    /* ---------- 邮件阅读页 ---------- */
    .view-toolbar { display: flex; align-items: center; gap: 10px; padding: 10px 18px; border-bottom: 1px solid var(--border-light); }
    .mail-head { padding: 22px 28px 0; }
    .mail-title { font-size: 20px; font-weight: 600; line-height: 1.45; word-break: break-word; }
    .mail-from-row { display: flex; align-items: center; gap: 12px; margin: 16px 0 18px; }
    .mail-from-name { font-size: 14.5px; font-weight: 600; }
    .mail-from-addr { color: var(--text-3); font-size: 12.5px; }
    .mail-date { color: var(--text-3); font-size: 12.5px; margin-left: auto; }
    .mail-body-wrap { padding: 22px 28px; flex: 1; overflow: auto; }
    .mail-body { line-height: 1.7; font-size: 14.5px; }
    .mail-body pre { white-space: pre-wrap; font-family: inherit; }
    .mail-body-iframe {
        width: 100%; min-height: 340px; border: 1px solid var(--border-light);
        border-radius: 8px; background: #fff;
    }
    .attachment-list { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border-light); }
    .attachment-item {
        display: inline-flex; align-items: center; gap: 7px;
        margin: 0 12px 10px 0; padding: 7px 13px;
        background: #f2f3f5; border-radius: 7px; font-size: 13px; color: var(--text);
    }
    .attachment-item a { color: var(--text); }
    .attachment-item a:hover { color: var(--primary); }
    .view-actions { display: flex; align-items: center; gap: 10px; padding: 18px 28px 24px; }

    /* ---------- 写信页 ---------- */
    .compose-toolbar { display: flex; align-items: center; gap: 10px; padding: 10px 18px; border-bottom: 1px solid var(--border-light); }
    .compose-form { flex: 1; display: flex; flex-direction: column; min-height: 0; }
    .compose-field { display: flex; align-items: center; gap: 12px; padding: 9px 22px; border-bottom: 1px solid var(--border-light); }
    .compose-field label { width: 54px; color: var(--text-2); font-size: 13.5px; flex-shrink: 0; }
    .compose-field input { border: none; outline: none; flex: 1; font-size: 14px; color: var(--text); background: transparent; }
    .editor-wrap { flex: 1; display: flex; flex-direction: column; min-height: 0; }
    .editor-wrap .ql-toolbar { border-left: none; border-right: none; border-top: none; }
    .editor-wrap .ql-container { border: none; flex: 1; font-size: 14.5px; }
    #editor { height: 100%; }
    .attach-chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px 22px; border-bottom: 1px solid var(--border-light); }
    .attach-chip {
        display: inline-flex; align-items: center; gap: 7px;
        padding: 5px 11px; background: #f2f3f5; border-radius: 15px;
        font-size: 12.5px; color: var(--text-2);
    }
    .attach-chip .chip-del { cursor: pointer; color: var(--text-3); border: none; background: none; font-size: 13px; line-height: 1; }
    .attach-chip .chip-del:hover { color: var(--danger); }
    .compose-footer {
        display: flex; align-items: center; gap: 14px;
        padding: 12px 22px; border-top: 1px solid var(--border-light);
        font-size: 12.5px; color: var(--text-3); background: #fafbfc;
    }
    .quota-bar { width: 200px; height: 6px; background: #eceef1; border-radius: 3px; overflow: hidden; }
    .quota-bar i { display: block; height: 100%; background: linear-gradient(90deg, #4aa3ff, var(--primary)); border-radius: 3px; }
    .quota-bar.warn i { background: linear-gradient(90deg, #ffc53d, var(--orange)); }
    .quota-bar.over i { background: var(--danger); }

    /* ---------- 登录页 ---------- */
    .login-page {
        min-height: 100vh; display: flex; align-items: center; justify-content: center;
        background: linear-gradient(165deg, #eaf2ff 0%, #f6f8fc 55%, #f0f6ff 100%);
    }
    .login-card {
        width: 400px; max-width: calc(100vw - 32px);
        background: #fff; border-radius: 14px;
        box-shadow: 0 10px 40px rgba(22, 119, 255, 0.10);
        padding: 42px 38px 36px;
    }
    .login-logo { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 8px; }
    .login-title { text-align: center; font-size: 21px; font-weight: 700; color: var(--text); margin-bottom: 26px; }
    .login-sub { text-align: center; color: var(--text-3); font-size: 13px; margin-bottom: 26px; }
    .divider { display: flex; align-items: center; gap: 10px; color: var(--text-3); font-size: 12.5px; margin: 18px 0; }
    .divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border-light); }

    /* ---------- 通用组件（兼容管理后台） ---------- */
    .container { max-width: 1400px; margin: 20px auto; padding: var(--topbar-h) 20px 0; }
    .card {
        background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); padding: 20px; margin-bottom: 16px;
    }
    .btn {
        display: inline-block; padding: 8px 16px; border-radius: 6px; border: 1px solid transparent;
        text-decoration: none; font-size: 14px; cursor: pointer; text-align: center;
        background: #f2f3f5; color: var(--text); line-height: 1.4;
    }
    .btn-primary { background: var(--primary); color: #fff; }
    .btn-primary:hover { background: var(--primary-hover); }
    .btn-danger { background: var(--danger); color: #fff; }
    .btn-danger:hover { background: #d23b47; }
    .btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 5px; }
    .alert { padding: 12px 16px; border-radius: 7px; margin-bottom: 16px; font-size: 13.5px; }
    .alert-error { background: var(--danger-soft); color: #c0392b; }
    .alert-success { background: var(--success-soft); color: #2e9e4f; }
    .form-group { margin-bottom: 16px; }
    .form-group label { display: block; margin-bottom: 7px; font-weight: 600; font-size: 13.5px; }
    .form-group input, .form-group textarea, .form-group select {
        width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
        font-size: 14px; outline: none; background: #fff; color: var(--text);
    }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
        border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12);
    }
    .form-group input[type="checkbox"] { width: auto; }
    table { width: 100%; border-collapse: collapse; }
    th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border-light); font-size: 13.5px; }
    th { background: #f8f9fb; font-weight: 600; color: var(--text-2); }
    tbody tr:hover td { background: #fafbfc; }
    .unread { font-weight: bold; }
    .message-subject { color: var(--text); }
    .message-subject:hover { color: var(--primary); }
    .mail-meta { color: var(--text-2); font-size: 13px; margin-bottom: 10px; line-height: 1.9; }
    .pagination { margin-top: 16px; text-align: center; }
    .pagination a, .pagination span {
        display: inline-block; padding: 6px 12px; margin: 0 2px;
        border: 1px solid var(--border); border-radius: 6px; text-decoration: none;
        color: var(--text-2); font-size: 13px;
    }
    .pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
    .badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: bold; }
    .badge-unread { background: #ff4d4f; color: #fff; }
    .stat-card {
        display: inline-block; width: 200px; padding: 20px; margin: 0 20px 16px 0;
        background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); text-align: center;
    }
    .stat-card h3 { font-size: 30px; color: var(--primary); margin-bottom: 4px; }
    .stat-card p { color: var(--text-2); font-size: 13.5px; }
    .dns-record {
        background: #f8f9fb; padding: 12px 16px; border-radius: 6px; margin-bottom: 12px;
        font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
        font-size: 12.5px; white-space: pre-wrap;
    }
    .clearfix::after { content: ""; display: table; clear: both; }
    /* 管理后台左侧导航兼容 */
    .sidebar { width: 200px; float: left; background: #fff; border: 1px solid var(--border-light); border-radius: var(--radius); padding: 8px; }
    .sidebar a { display: block; padding: 9px 14px; color: var(--text-2); text-decoration: none; border-radius: 6px; margin-bottom: 2px; font-size: 13.5px; }
    .sidebar a:hover, .sidebar a.active { background: var(--primary-soft); color: var(--primary); }
    .content { margin-left: 220px; }
    .settings-main { padding: 24px; background: var(--sidebar-bg); }

    /* ===== 移动端适配（≤767px） ===== */
    @media (max-width: 767px) {
        :root { --topbar-h: 50px; }

        /* 顶栏：紧凑单行 + 列表页搜索框下移为第二行 */
        .topbar { height: auto; min-height: 50px; padding: 8px 12px; gap: 8px; flex-wrap: wrap; }
        .logo-icon { width: 30px; height: 30px; font-size: 15px; border-radius: 8px; }
        .logo-text { font-size: 17px; }
        .logo-text em { display: none; }
        .topbar-search { flex: 1 1 100%; order: 9; border-radius: 8px; }
        body.page-list { --topbar-h: 96px; }
        .topbar-right { gap: 12px; }
        .user-email { display: none; }

        /* 左侧文件夹栏 → 底部导航条 */
        .mail-sidebar {
            position: fixed; top: auto; bottom: 0; left: 0; right: 0;
            width: 100%; height: auto; min-height: 58px;
            padding: 4px 8px calc(4px + env(safe-area-inset-bottom));
            flex-direction: row; align-items: center; gap: 2px;
            background: #fff; border-top: 1px solid var(--border); border-right: none;
            z-index: 90; box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
        }
        .folder-nav { display: contents; }
        .folder {
            flex: 1; flex-direction: column; justify-content: center; gap: 2px;
            height: 46px; padding: 0; border-radius: 8px; font-size: 10.5px;
            position: relative;
        }
        .folder-nav .folder:nth-child(1) { order: 1; }
        .folder-nav .folder:nth-child(2) { order: 2; }
        .folder-nav .folder:nth-child(3) { order: 4; }
        .folder svg { width: 19px; height: 19px; }
        .folder.active::before { display: none; }
        .folder .badge {
            position: absolute; top: 1px; right: calc(50% - 20px);
            min-width: 16px; height: 16px; padding: 0 4px;
            font-size: 10px; line-height: 16px; border-radius: 8px;
        }
        .folder .count { display: none; }
        .compose-btn {
            width: 46px; height: 46px; padding: 0; border-radius: 50%;
            margin: 0 4px; flex-shrink: 0; order: 3;
            font-size: 0; box-shadow: 0 3px 10px rgba(255, 149, 0, 0.5);
            transform: translateY(-10px);
        }
        .compose-btn:hover { transform: translateY(-10px); }
        .compose-btn svg { width: 20px; height: 20px; }
        .sidebar-footer {
            margin: 0; border: none; padding: 0;
            flex-direction: row; gap: 2px; order: 5;
        }
        .mail-main { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }

        /* 邮件列表 */
        .list-toolbar { padding: 8px 10px; gap: 8px; }
        .check-all { font-size: 12.5px; }
        .tb-btn { height: 30px; padding: 0 9px; font-size: 12.5px; }
        .page-info { font-size: 12px; }
        .mail-row { padding: 0 10px; height: 60px; gap: 8px; }
        .avatar { width: 32px; height: 32px; font-size: 13px; }
        .cell-from { width: 88px; font-size: 13px; }
        .cell-subject-wrap { flex: 1; min-width: 0; }
        .cell-subject { font-size: 13px; }
        .cell-snippet { display: none; }
        .cell-date { width: 56px; font-size: 11.5px; }
        .row-del { opacity: 1; }
        .list-footer { padding: 8px 10px; }
        .pager { margin-left: auto; gap: 4px; }

        /* 阅读页 */
        .view-toolbar { padding: 8px 10px; gap: 8px; }
        .mail-head { padding: 16px 16px 0; }
        .mail-title { font-size: 17px; }
        .mail-from-row { gap: 10px; margin: 12px 0 14px; }
        .mail-body-wrap { padding: 14px 16px; }
        .mail-body-iframe { min-height: 260px; }
        .view-actions { padding: 14px 16px 20px; flex-wrap: wrap; }

        /* 写信页 */
        .compose-toolbar { padding: 8px 10px; gap: 8px; }
        .compose-field { padding: 8px 14px; gap: 8px; }
        .compose-field label { width: 44px; font-size: 13px; }
        .compose-footer { padding: 10px 14px; flex-wrap: wrap; }
        .quota-bar { width: 130px; }

        /* 设置页 */
        .settings-main { padding: 14px; }

        /* 管理后台 */
        .container { padding: var(--topbar-h) 12px 0; margin: 12px auto; }
        .sidebar { float: none; width: 100%; margin-bottom: 12px; display: flex; flex-wrap: wrap; gap: 2px; padding: 6px; }
        .sidebar a { margin: 0; padding: 8px 12px; font-size: 13px; }
        .content { margin-left: 0; overflow-x: auto; }
        th, td { white-space: nowrap; }
        .stat-card { width: calc(50% - 10px); margin: 0 0 10px; }
    }
</style>
{{end}}

{{define "navbar"}}
{{if .currentUser}}
<header class="topbar">
    <div class="topbar-left">
        <a class="logo" href="/inbox">
            <span class="logo-icon">✉</span>
            <span class="logo-text">MailGo<em>邮箱</em></span>
        </a>
    </div>
    <div class="topbar-search">
        <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
        <input id="mail-search" type="text" placeholder="搜索邮件（发件人 / 主题）" autocomplete="off">
    </div>
    <div class="topbar-right">
        {{if .currentUser.IsAdmin}}<a class="topbar-link" href="/admin">管理后台</a>{{end}}
        <a class="topbar-link" href="/settings">设置</a>
        <span class="user-chip">
            <span class="avatar avatar-sm" style="{{avatarStyle .currentUser.Username}}">{{initial .currentUser.Username}}</span>
            <span class="user-email" title="{{.currentUser.Username}}@{{.currentUser.Domain.Name}}">{{.currentUser.Username}}@{{.currentUser.Domain.Name}}</span>
        </span>
        <form method="POST" action="/logout" class="logout-form">
            <button type="submit" class="icon-btn" title="退出登录">
                <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4"/><polyline points="16 17 21 12 16 7"/><line x1="21" y1="12" x2="9" y2="12"/></svg>
            </button>
        </form>
    </div>
</header>
{{end}}
{{end}}

{{define "sidebar"}}
<aside class="mail-sidebar">
    <a href="/compose" class="compose-btn">
        <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7"/><path d="M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z"/></svg>
        写信
    </a>
    <nav class="folder-nav">
        <a class="folder {{if eq .activeFolder `inbox`}}active{{end}}" href="/inbox">
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="22 12 16 12 14 15 10 15 8 12 2 12"/><path d="M5.45 5.11L2 12v6a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2v-6l-3.45-6.89A2 2 0 0 0 16.76 4H7.24a2 2 0 0 0-1.79 1.11z"/></svg>
            收件箱
            {{if .inboxUnread}}<span class="badge">{{.inboxUnread}}</span>{{end}}
        </a>
        <a class="folder {{if eq .activeFolder `drafts`}}active{{end}}" href="/drafts">
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><polyline points="14 2 14 8 20 8"/><line x1="16" y1="13" x2="8" y2="13"/><line x1="16" y1="17" x2="8" y2="17"/></svg>
            草稿箱
            {{if .draftsTotal}}<span class="count">{{.draftsTotal}}</span>{{end}}
        </a>
        <a class="folder {{if eq .activeFolder `sent`}}active{{end}}" href="/sent">
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="22" y1="2" x2="11" y2="13"/><polygon points="22 2 15 22 11 13 2 9 22 2"/></svg>
            已发送
            {{if .sentTotal}}<span class="count">{{.sentTotal}}</span>{{end}}
        </a>
    </nav>
    <div class="sidebar-footer">
        {{if .currentUser.IsAdmin}}
        <a class="folder" href="/admin">
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z"/></svg>
            管理后台
        </a>
        {{end}}
    </div>
</aside>
{{end}}

{{define "listjs"}}
<script>
(function () {
    var searchInput = document.getElementById('mail-search');
    var rows = Array.prototype.slice.call(document.querySelectorAll('.mail-row'));
    var selectAll = document.getElementById('select-all');
    var btnDelete = document.getElementById('btn-delete');

    // 行点击跳转（复选框 / 行内删除按钮除外）
    rows.forEach(function (row) {
        row.addEventListener('click', function (e) {
            if (e.target.closest('.cell-check') || e.target.closest('.row-del')) return;
            var link = row.querySelector('.cell-subject');
            if (link) window.location.href = link.getAttribute('href');
        });
    });

    // 全选
    selectAll && selectAll.addEventListener('change', function () {
        rows.forEach(function (row) {
            var cb = row.querySelector('.row-check');
            cb.checked = selectAll.checked;
            row.classList.toggle('selected', cb.checked);
        });
        updateDeleteState();
    });
    rows.forEach(function (row) {
        var cb = row.querySelector('.row-check');
        cb.addEventListener('change', function () {
            row.classList.toggle('selected', cb.checked);
            if (!cb.checked && selectAll) selectAll.checked = false;
            updateDeleteState();
        });
    });

    function updateDeleteState() {
        if (!btnDelete) return;
        var n = rows.filter(function (r) { return r.isConnected && r.querySelector('.row-check').checked; }).length;
        btnDelete.disabled = n === 0;
    }

    // 批量删除
    btnDelete && btnDelete.addEventListener('click', function () {
        var ids = rows.filter(function (r) { return r.isConnected && r.querySelector('.row-check').checked; })
                      .map(function (r) { return r.dataset.id; });
        if (!ids.length) return;
        if (!confirm('确定要删除选中的 ' + ids.length + ' 封邮件吗？')) return;
        var done = 0;
        ids.forEach(function (id) {
            fetch('/mail/delete/' + id, { method: 'POST', body: new FormData() })
                .then(function () { if (++done === ids.length) window.location.reload(); })
                .catch(function () { if (++done === ids.length) window.location.reload(); });
        });
    });

    // 刷新
    var btnRefresh = document.getElementById('btn-refresh');
    btnRefresh && btnRefresh.addEventListener('click', function () { window.location.reload(); });

    // 搜索过滤（发件人 / 主题 / 摘要）
    searchInput && searchInput.addEventListener('input', function () {
        var q = searchInput.value.trim().toLowerCase();
        rows.forEach(function (row) {
            if (!row.isConnected) return;
            var text = row.textContent.toLowerCase();
            row.style.display = (!q || text.indexOf(q) !== -1) ? '' : 'none';
        });
    });

    // 从 BFCache（往返缓存）恢复时静默同步最新列表状态：
    // 阅读页已把邮件标记为已读/删除，恢复的旧 DOM 需要与服务端对齐，
    // 避免“返回后仍是未读/已删邮件仍显示”。
    // 真实浏览器在 BFCache 恢复时会触发 pageshow(persisted=true)；
    // visibilitychange 作为兜底（页面重新可见时也同步一次）。
    var syncing = false;
    function syncFromServer(forceReloadOnError) {
        if (syncing) return;
        syncing = true;
        fetch(window.location.href, { headers: { 'Accept': 'text/html' }, credentials: 'same-origin' })
            .then(function (r) { return r.text(); })
            .then(function (html) {
                var doc = new DOMParser().parseFromString(html, 'text/html');
                var fresh = {};
                doc.querySelectorAll('.mail-row').forEach(function (r) { fresh[r.dataset.id] = r.classList.contains('unread'); });
                rows.forEach(function (row) {
                    var id = row.dataset.id;
                    if (!(id in fresh)) { row.remove(); return; } // 已被删除
                    row.classList.toggle('unread', fresh[id]);
                    var wrap = row.querySelector('.cell-subject-wrap');
                    var dot = row.querySelector('.unread-dot');
                    if (fresh[id] && !dot && wrap) {
                        var s = document.createElement('span');
                        s.className = 'unread-dot';
                        wrap.insertBefore(s, wrap.firstChild);
                    } else if (!fresh[id] && dot) {
                        dot.remove();
                    }
                });
                // 同步“共 N 封”与侧栏未读角标
                var total = doc.querySelector('.page-info');
                var curTotal = document.querySelector('.page-info');
                if (total && curTotal) curTotal.textContent = total.textContent;
                var badge = doc.querySelector('.folder.active .badge');
                var curBadge = document.querySelector('.folder.active .badge');
                if (badge && curBadge) curBadge.textContent = badge.textContent;
                else if (!badge && curBadge) curBadge.remove();
            })
            .catch(function () {
                // BFCache 恢复时 DOM 是旧的，同步失败只能整页刷新兜底；
                // 标签页切回触发的同步失败则静默忽略（可能只是离线）。
                if (forceReloadOnError) window.location.reload();
            })
            .then(function () { syncing = false; });
    }
    window.addEventListener('pageshow', function (e) {
        if (e.persisted) syncFromServer(true);
    });
    document.addEventListener('visibilitychange', function () {
        if (document.visibilityState === 'visible') syncFromServer(false);
    });
})();
</script>
{{end}}