:root {
  --bg: #0b1220;
  --bg-2: #0f172a;
  --card: #141d31;
  --card-2: #182238;
  --border: #243049;
  --text: #e6ecf7;
  --muted: #8a97b1;
  --primary: #3b82f6;
  --primary-2: #8b5cf6;
  --green: #34d399;
  --red: #f87171;
  --yellow: #fbbf24;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
input, textarea { caret-color: var(--primary); -webkit-user-select: text; user-select: text; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
input, button { font-family: inherit; font-size: 14px; }

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100%; display: flex; align-items: center; justify-content: center;
  padding: 20px;
  background: radial-gradient(1200px 600px at 70% -10%, rgba(139,92,246,.18), transparent),
              radial-gradient(900px 500px at 10% 110%, rgba(59,130,246,.18), transparent), var(--bg);
}
.login-card {
  width: 100%; max-width: 380px; background: var(--card);
  border: 1px solid var(--border); border-radius: 20px;
  padding: 36px 30px; text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
}
.login-logo { width: 76px; height: 76px; border-radius: 18px; object-fit: cover; margin-bottom: 16px; }
.login-card h1 { font-size: 22px; margin-bottom: 6px; }
.login-sub { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.login-card input {
  width: 100%; padding: 13px 14px; border-radius: 11px;
  border: 1px solid var(--border); background: var(--bg-2); color: var(--text);
  margin-bottom: 14px; outline: none;
}
.login-card input:focus { border-color: var(--primary); }
.login-err { color: var(--red); font-size: 13px; margin-top: 10px; min-height: 16px; }

/* ---------- 按钮 ---------- */
.btn-primary {
  width: 100%; padding: 13px; border: none; border-radius: 11px; cursor: pointer;
  color: #fff; font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  transition: transform .08s, filter .15s;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:active { transform: scale(.98); }
.btn-sm { width: auto; padding: 9px 16px; font-size: 13px; border-radius: 10px; }
.btn-ghost {
  padding: 9px 16px; border-radius: 10px; cursor: pointer;
  background: transparent; color: var(--muted); border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }

/* ---------- 主布局 ---------- */
.app-wrap { display: flex; min-height: 100%; }
.sidebar {
  width: 230px; flex-shrink: 0; background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 22px 16px;
  position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 11px; padding: 4px 6px 22px; }
.brand-logo { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; }
.brand-name { font-size: 16px; font-weight: 700; }
.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  padding: 11px 14px; border-radius: 10px; color: var(--muted);
  cursor: pointer; font-size: 14px; user-select: none;
}
.nav-item:hover { background: var(--card); color: var(--text); }
.nav-item.active { background: linear-gradient(135deg, rgba(59,130,246,.18), rgba(139,92,246,.18)); color: var(--text); }
.nav-logout {
  margin-top: 12px; padding: 10px; background: transparent;
  border: 1px solid var(--border); border-radius: 10px; color: var(--muted); cursor: pointer;
}
.nav-logout:hover { color: var(--red); border-color: var(--red); }

.content { flex: 1; padding: 30px 34px; min-width: 0; }
.page { display: none; animation: fade .2s ease; }
.page.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.page-title { font-size: 22px; margin-bottom: 22px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-head .page-title { margin-bottom: 0; }

/* ---------- 概览 ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 20px;
}
.stat-num { font-size: 30px; font-weight: 700; margin-bottom: 6px;
  background: linear-gradient(135deg, #60a5fa, #a78bfa); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-label { color: var(--muted); font-size: 13px; }
.hint-box {
  margin-top: 24px; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px; color: var(--muted); font-size: 14px; line-height: 1.9;
}
.hint-box b { color: var(--text); }
.hint-box ol { margin: 8px 0 0 20px; }

/* ---------- 卡片列表 ---------- */
.card-list { display: flex; flex-direction: column; gap: 13px; }
.item-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 17px 19px;
}
.item-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.item-name { font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 9px; }
.item-actions { display: flex; gap: 8px; }
.icon-btn { background: var(--card-2); border: 1px solid var(--border); color: var(--muted);
  border-radius: 8px; padding: 6px 11px; font-size: 12px; cursor: pointer; }
.icon-btn:hover { color: var(--text); }
.icon-btn.danger:hover { color: var(--red); border-color: var(--red); }
.item-meta { margin-top: 11px; color: var(--muted); font-size: 12.5px; line-height: 1.8; word-break: break-all; }
.item-meta .k { color: var(--muted); }
.key-line { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.key-line code { background: var(--bg-2); border: 1px solid var(--border); border-radius: 7px;
  padding: 4px 9px; font-size: 12px; color: #9ec3ff; flex: 1; overflow-x: auto; white-space: nowrap; }
.tag { font-size: 11px; padding: 2px 8px; border-radius: 20px; font-weight: 500; }
.tag.on { background: rgba(52,211,153,.15); color: var(--green); }
.tag.off { background: rgba(248,113,113,.15); color: var(--red); }
.models-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.mtag { background: var(--bg-2); border: 1px solid var(--border); border-radius: 7px; padding: 3px 9px; font-size: 11.5px; color: #c7d2fe; }

/* ---------- 表格 ---------- */
.table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 720px; }
.table th, .table td { padding: 12px 14px; text-align: left; white-space: nowrap; }
.table thead th { color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--border); background: var(--card-2); }
.table tbody tr { border-bottom: 1px solid var(--border); }
.table tbody tr:last-child { border-bottom: none; }
.status-dot { font-size: 12px; }
.s-2xx { color: var(--green); }
.s-err { color: var(--red); }

/* ---------- 设置表单 ---------- */
.form-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; max-width: 460px; display: flex; flex-direction: column;
}
.form-card label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 8px; }
.form-card .field { margin-bottom: 2px; }
.form-card label:first-child { margin-top: 0; }
.form-card input, .form-card select {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); outline: none;
}
.form-card select { appearance: none; }
.form-card input:focus, .form-card select:focus { border-color: var(--primary); }
.form-card button { margin-top: 22px; }
.form-msg { margin-top: 12px; font-size: 13px; color: var(--green); min-height: 16px; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(5,9,18,.65); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 50;
}
.modal {
  width: 100%; max-width: 460px; background: var(--card);
  border: 1px solid var(--border); border-radius: 18px; padding: 24px;
  max-height: calc(100vh - 40px); overflow-y: auto; overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.modal h3 { font-size: 17px; margin-bottom: 18px; }
.modal .field { margin-bottom: 14px; }
.modal label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 7px; }
.modal input, .modal textarea {
  width: 100%; padding: 11px 13px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); outline: none;
}
.modal textarea { min-height: 90px; resize: vertical; line-height: 1.6; }
.modal select { width: 100%; padding: 11px 13px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-2); color: var(--text); outline: none; }
.modal input:focus, .modal textarea:focus, .modal select:focus { border-color: var(--primary); }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; position: sticky; bottom: -24px; background: var(--card); padding: 10px 0 4px; z-index: 2; }
.modal-foot button { width: auto; padding: 10px 20px; }

/* ---------- 落地页：标签 / 验证码 / 管理员入口 ---------- */
.tab-row { display: flex; gap: 8px; margin-bottom: 16px; }
.tab {
  flex: 1; padding: 10px; border-radius: 10px; cursor: pointer;
  background: var(--bg-2); color: var(--muted); border: 1px solid var(--border);
}
.tab.active { background: linear-gradient(135deg, rgba(59,130,246,.2), rgba(139,92,246,.2)); color: var(--text); border-color: var(--primary); }
.code-row { display: flex; gap: 8px; margin-bottom: 14px; }
.code-row input { flex: 1; margin-bottom: 0; }
.code-row .btn-ghost { width: auto; padding: 0 14px; border-radius: 10px; }
.captcha-img { width: 132px; height: 44px; flex: none; border-radius: 8px; cursor: pointer; object-fit: cover; background: #0f172a; }
.login-link { display: block; margin-top: 10px; font-size: 12.5px; color: var(--primary); cursor: pointer; text-align: center; }
.login-divider { display: flex; align-items: center; gap: 10px; margin: 22px 0 14px; color: var(--muted); font-size: 12px; }
.login-divider::before, .login-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.btn-block { width: 100%; padding: 12px; margin-top: 2px; }

.side-user { padding: 10px 14px; font-size: 12.5px; color: var(--muted); border: 1px dashed var(--border); border-radius: 10px; margin-bottom: 8px; word-break: break-all; }

/* ---------- 图表 ---------- */
.chart-head { margin-top: 24px; }
.chart-head h3 { font-size: 15px; color: var(--text); margin-bottom: 10px; }
.chart { width: 100%; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; }

/* ---------- 日志筛选 ---------- */
.filter-bar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.filter-bar input {
  padding: 9px 12px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); outline: none; min-width: 130px;
}
.filter-bar input:focus { border-color: var(--primary); }
.filter-bar .btn-ghost { padding: 9px 16px; }

/* ---------- 设置：SMTP 网格 ---------- */
.form-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-h { margin: 18px 0 4px; color: var(--text); font-size: 14px; border-top: 1px solid var(--border); padding-top: 16px; }
.form-card .chk { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin: 12px 0 0; }
.form-card .chk input { width: auto; }

/* 用户健康状态标签 */
.tag.warn { background: rgba(251,191,36,.15); color: var(--yellow); }

/* ---------- 调用示例代码块 ---------- */
.ex-block { margin-bottom: 12px; }
.ex-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.ex-head span { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.ex-block pre { background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; font-size: 12px; line-height: 1.55; overflow-x: auto; color: #9ec3ff; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(20px);
  background: #1c2740; border: 1px solid var(--border); color: var(--text);
  padding: 11px 20px; border-radius: 11px; font-size: 13.5px; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; z-index: 80; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 760px) {
  .app-wrap { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: column;
    border-right: none; border-bottom: 1px solid var(--border); padding: 14px 14px 12px; }
  .brand { padding-bottom: 12px; }
  .nav { flex-direction: row; overflow-x: auto; gap: 6px; }
  .nav-item { white-space: nowrap; padding: 9px 13px; font-size: 13.5px; }
  .nav-logout { display: none; }
  .content { padding: 20px 16px 40px; }
  .page-head { flex-wrap: wrap; gap: 12px; }
}

.ch-icon{width:18px;height:18px;border-radius:4px;object-fit:contain;vertical-align:-4px;margin-right:5px;background:#fff;padding:1px}
.ch-letter{display:inline-block;width:18px;height:18px;line-height:18px;text-align:center;border-radius:4px;font-size:11px;font-weight:700;color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);vertical-align:-3px;margin-right:5px}

.pick-mask{z-index:60}

/* ---------- 密码框小眼睛 ---------- */
.pwd-wrap { display: flex; align-items: stretch; }
.pwd-wrap input { flex: 1; min-width: 0; width: 100%; margin-bottom: 0 !important; }
.pwd-eye {
  flex: none; align-self: stretch; display: flex; align-items: center; justify-content: center;
  width: 36px; background: none; border: none; color: var(--muted); cursor: pointer; padding: 0;
}
.pwd-eye svg { display: block; flex: none; transform: translateY(-2px); }
.pwd-eye:hover { color: var(--text); }
.login-card .pwd-wrap { margin-bottom: 14px; }