:root{--blue:#0b5cad;--teal:#14b8a6;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--bg:#f6f8fb;--card:#fff;--danger:#dc2626;--ok:#16a34a;--warn:#d97706}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Microsoft YaHei",sans-serif}.login-body{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 15% 10%,#dff7f3 0,transparent 30%),linear-gradient(135deg,#eff6ff,#f8fafc)}.login-card{width:420px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:0 25px 80px #0b1f3a1c}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--teal));display:grid;place-items:center;color:#fff;font-weight:900}.brand-text{font-size:22px}.login-card .brand{justify-content:center;margin-bottom:28px}.field{margin:12px 0}.field label{display:block;font-size:13px;color:#475569;margin-bottom:7px}.input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:11px 12px;background:#fff;font-size:14px;outline:none}.input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #0b5cad1a}textarea{min-height:140px;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:10px 14px;background:#e2e8f0;color:#0f172a;text-decoration:none;cursor:pointer;font-weight:700;white-space:nowrap}.btn.primary{background:linear-gradient(135deg,var(--blue),#0876d7);color:#fff}.btn.danger{background:#fee2e2;color:#991b1b}.btn.ghost{background:#fff;border:1px solid var(--line)}.btn.compact{padding:8px 10px;font-size:12px}.alert{border-radius:12px;padding:10px 12px;margin:12px 0;font-size:14px}.alert.error{background:#fef2f2;color:#991b1b}.alert.success{background:#ecfdf5;color:#065f46}.alert.soft{display:inline-block}.app{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}.sidebar{background:#081827;color:#dbeafe;padding:20px 16px;position:sticky;top:0;height:100vh}.sidebar .brand{color:#fff;margin-bottom:28px}.nav a{display:flex;align-items:center;color:#cbd5e1;text-decoration:none;border-radius:12px;padding:12px 14px;margin:5px 0;font-weight:750}.nav a:hover,.nav a.active{background:#123456;color:#fff}.nav-label{padding-left:0}.main{min-width:0;width:100%}.topbar{height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:3}.content{padding:26px;width:100%;max-width:none}.grid{display:grid;gap:16px}.grid.cols2{grid-template-columns:1fr 1fr}.grid.cols3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 8px 30px #0f172a08;width:100%}.card h2,.card h3{margin:0 0 14px}.muted{color:var(--muted);font-size:13px}.table{width:100%;border-collapse:separate;border-spacing:0}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:12px;vertical-align:top}.table th{font-size:12px;color:#64748b;background:#f8fafc}.pill{display:inline-flex;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800;background:#e0f2fe;color:#075985}.pill.ok{background:#dcfce7;color:#166534}.pill.off{background:#fee2e2;color:#991b1b}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}.filterbar{display:grid;grid-template-columns:minmax(240px,1.2fr) minmax(180px,.7fr) minmax(260px,1fr) auto auto;align-items:center}.status-panel{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.mail-card{min-height:55vh}.mail-list a{color:inherit;text-decoration:none}.mail-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;border-bottom:1px solid var(--line)}.mail-row-main{display:grid;grid-template-columns:210px 230px minmax(0,1fr) 160px;gap:14px;padding:14px;align-items:center;min-width:0}.mail-row:hover{background:#f8fafc}.subject{font-weight:800}.pre{white-space:pre-wrap;background:#0b1220;color:#e2e8f0;border-radius:14px;padding:14px;overflow:auto;max-height:520px}.perm-table input{width:18px;height:18px}.stat{padding:20px;border-radius:18px;background:linear-gradient(135deg,#fff,#eff6ff);border:1px solid var(--line)}.stat b{display:block;font-size:30px;margin-bottom:4px}.danger-text{color:var(--danger)}.message-head h2{font-size:26px;margin-bottom:14px}.meta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;border:1px solid var(--line);border-radius:16px;padding:14px;background:#f8fafc}.meta-grid span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}.message-body{margin-top:18px;border:1px solid var(--line);border-radius:18px;padding:22px;background:#fff;line-height:1.75;min-height:180px;overflow:auto}.message-body img{max-width:100%;height:auto}.raw-box{margin-top:16px}.compose-card{max-width:none}.editor-toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;border:1px solid var(--line);border-radius:14px 14px 0 0;background:#f8fafc;padding:9px}.editor-toolbar button,.editor-toolbar select,.upload-btn{border:1px solid #cbd5e1;background:#fff;border-radius:10px;padding:7px 10px;cursor:pointer;font-size:13px}.editor-toolbar input[type=color]{width:40px;height:34px;border:1px solid #cbd5e1;border-radius:10px}.rich-editor{min-height:320px;border:1px solid var(--line);border-top:0;border-radius:0 0 14px 14px;background:#fff;padding:16px;outline:none;line-height:1.7}.rich-editor:focus{box-shadow:0 0 0 3px #0b5cad12}.rich-editor img{max-width:100%;height:auto}.toast-root{position:fixed;right:22px;bottom:22px;z-index:50;display:grid;gap:10px}.toast{width:330px;background:#0f172a;color:#fff;border-radius:16px;padding:14px 16px;box-shadow:0 20px 50px #0f172a40}.toast b{display:block;margin-bottom:4px}.toast a{color:#93c5fd}.toast.success{background:#065f46}.toast.warn{background:#7c2d12}@media(max-width:1100px){.filterbar{grid-template-columns:1fr 1fr}.status-panel{grid-column:1/-1}.mail-row-main{grid-template-columns:1fr}.grid.cols3{grid-template-columns:1fr 1fr 1fr}}@media(max-width:760px){.app{grid-template-columns:1fr}.sidebar{height:auto;position:static}.grid.cols2,.grid.cols3,.filterbar{grid-template-columns:1fr}.mail-row{grid-template-columns:1fr}.mail-row-main{grid-template-columns:1fr}.topbar{position:static;height:auto;padding:14px;align-items:flex-start}.content{padding:14px}.login-card{width:92vw}.meta-grid{grid-template-columns:1fr}.toast-root{left:14px;right:14px}.toast{width:auto}}
.mail-table{width:100%;overflow:auto}.mail-head{display:grid;grid-template-columns:210px 230px minmax(0,1fr) 160px 68px;gap:14px;padding:12px 14px;background:#f8fafc;border-bottom:1px solid var(--line);border-radius:12px 12px 0 0;color:#64748b;font-size:12px;font-weight:800}.empty-row{padding:18px}.topbar .muted{display:none}@media(max-width:1100px){.mail-head{display:none}.mail-row-main{grid-template-columns:1fr!important}.filterbar{grid-template-columns:1fr 1fr auto}.mail-row{padding-bottom:10px}}@media(max-width:760px){.filterbar{grid-template-columns:1fr}.mail-row-main{grid-template-columns:1fr!important}}

.password-view{display:flex;gap:8px;align-items:center}.password-inline{max-width:180px;padding:8px 10px}.password-view .compact{padding:8px 10px}

.permission-list{display:grid;gap:16px}.perm-user{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.perm-user-head{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#f8fafc;padding:14px 16px;border-bottom:1px solid var(--line)}.perm-mail-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;padding:14px}.perm-mail-card{display:block;border:1px solid #dbe5f0;border-radius:14px;padding:12px;background:#fff;cursor:pointer}.perm-mail-card:hover{border-color:var(--blue);box-shadow:0 8px 24px #0b5cad12}.perm-mail-title{font-weight:800;margin-bottom:4px}.perm-checks{display:flex;gap:18px;margin-top:10px}.perm-checks input{width:18px;height:18px;vertical-align:middle}.toolbar form{margin:0}

.row-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.reset-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.reset-form .password-inline{min-width:140px;max-width:180px}


/* Staff account page */
.account-list-card{min-width:0}.table-wrap{width:100%;overflow-x:auto}.staff-table th,.staff-table td{vertical-align:middle}.staff-actions{display:flex;gap:8px;align-items:center;flex-wrap:nowrap}.staff-actions form{margin:0}.staff-table .password-view{min-width:170px}.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.38);z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}.modal-mask[hidden]{display:none}.modal-card{width:min(460px,100%);background:#fff;border-radius:18px;padding:22px;box-shadow:0 24px 80px rgba(15,23,42,.25);border:1px solid var(--line)}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.modal-head h3{margin:0 0 4px}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:14px}@media(max-width:900px){.staff-page{grid-template-columns:1fr}.staff-actions{flex-wrap:wrap}}



/* Mailbox account page */
.mailbox-list-card{min-width:0}.mailbox-table th,.mailbox-table td{vertical-align:middle}.mailbox-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.mailbox-actions form{margin:0}@media(max-width:900px){.mailbox-page{grid-template-columns:1fr}.mailbox-actions{align-items:flex-start}}