/* ============ 救星VPN · 用户中心（极客云风格） ============ */
:root {
  --primary: #6777ef;
  --primary-dark: #3b49d6;
  --primary-light: #eef0fe;
  --dark: #2f335e;
  --dark-deep: #191c3d;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #34395e;
  --muted: #98a6ad;
  --success: #47c363;
  --danger: #fc544b;
  --warning: #ffa426;
  --border: #e4e6fc;
  --shadow: 0 2px 8px rgba(47, 51, 94, .07);
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; border-radius: 6px; padding: 9px 18px; font-size: 14px; font-weight: 700;
  cursor: pointer; transition: all .18s; background: #e4e6fc; color: #4a4f8a;
}
.btn:hover { filter: brightness(.96); }
.btn.primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(103, 119, 239, .35); }
.btn.primary:hover { background: var(--primary-dark); }
.btn.ghost { background: #fff; border: 1px solid var(--border); color: var(--primary); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.block { width: 100%; }
.btn.small { padding: 6px 12px; font-size: 13px; }

/* ---------- 登录页 ---------- */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #6777ef 0%, #6f42c1 55%, #191c3d 100%);
  padding: 24px;
}
.auth-card {
  width: 100%; max-width: 400px; background: #fff; border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3); padding: 36px 34px 26px;
}
.auth-brand { text-align: center; margin-bottom: 20px; }
.auth-logo, .side-logo { display: inline-flex; align-items: center; }
.auth-logo svg, .side-logo svg { width: 46px; height: 46px; }
.auth-brand h1 { font-size: 24px; font-weight: 800; color: var(--dark); margin-top: 8px; }
.auth-slogan { color: var(--muted); font-size: 13px; margin-top: 2px; }
.auth-tabs {
  display: flex; background: #f1f3ff; border-radius: 8px; padding: 4px; margin-bottom: 22px;
}
.auth-tabs button {
  flex: 1; border: 0; background: transparent; padding: 9px 0; border-radius: 6px;
  font-size: 14px; font-weight: 700; color: var(--muted); cursor: pointer;
}
.auth-tabs button.active { background: #fff; color: var(--primary); box-shadow: 0 2px 6px rgba(47, 51, 94, .12); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.field input {
  width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 11px 14px;
  font-size: 14px; color: var(--text); background: #fafbff; outline: none; transition: border .15s;
}
.field input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(103, 119, 239, .15); background: #fff; }
.remember { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--muted); margin: 4px 0 16px; cursor: pointer; }
.remember input { accent-color: var(--primary); width: 15px; height: 15px; }
.auth-foot { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 18px; font-size: 13px; color: var(--muted); }
.auth-foot .sep { color: var(--border); }

/* ---------- 应用布局 ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 250px; flex-shrink: 0; background: linear-gradient(180deg, var(--dark) 0%, var(--dark-deep) 100%);
  color: #c6cbe8; display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; left: 0; z-index: 50;
  transition: transform .2s;
}
.side-brand {
  display: flex; align-items: center; gap: 10px; padding: 20px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.side-brand svg { width: 34px; height: 34px; }
.side-name { font-size: 18px; font-weight: 800; color: #fff; }
.side-nav { flex: 1; padding: 14px 12px; display: flex; flex-direction: column; gap: 4px; }
.side-nav a {
  display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 8px;
  color: #b9c0e4; font-size: 14.5px; font-weight: 600; cursor: pointer; transition: all .15s;
}
.side-nav a .ico { width: 22px; text-align: center; font-size: 16px; opacity: .85; }
.side-nav a:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.side-nav a.active { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(103, 119, 239, .4); }
.side-nav a.logout { margin-top: auto; color: #ff9b96; }
.side-foot { padding: 14px 22px; font-size: 12px; color: #7c84b5; border-top: 1px solid rgba(255, 255, 255, .06); }
.side-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(25, 28, 61, .55);
  z-index: 45; opacity: 0; transition: opacity .2s;
}
.side-backdrop.show { display: block; opacity: 1; }

.main { flex: 1; margin-left: 250px; display: flex; flex-direction: column; min-height: 100vh; }
.navbar {
  height: 60px; background: #fff; box-shadow: 0 2px 8px rgba(47, 51, 94, .06);
  display: flex; align-items: center; gap: 14px; padding: 0 22px; position: sticky; top: 0; z-index: 40;
}
.nav-toggle { display: none; border: 0; background: transparent; font-size: 20px; color: var(--dark); cursor: pointer; }
.page-title { font-size: 19px; font-weight: 800; color: var(--dark); flex: 1; }
.navbar-right { display: flex; align-items: center; }
.user-chip { display: flex; align-items: center; gap: 10px; background: var(--primary-light); border-radius: 24px; padding: 5px 14px 5px 5px; }
.avatar {
  width: 34px; height: 34px; border-radius: 50%; background: var(--primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 15px;
}
.avatar.big { width: 60px; height: 60px; font-size: 24px; }
.nav-email { font-size: 13.5px; font-weight: 700; color: var(--text); max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.notice {
  background: linear-gradient(90deg, #fff6e8, #fff); border: 1px solid #ffe3b8; color: #a86b00;
  padding: 10px 18px; margin: 18px 22px 0; border-radius: 8px; font-size: 13.5px;
}
.content { padding: 22px; flex: 1; }
.page { display: none; }
.page.active { display: block; animation: fadeIn .25s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px 22px; margin-bottom: 20px;
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.card-head h3 { font-size: 16px; font-weight: 800; color: var(--dark); }

/* ---------- 统计卡片 ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 20px; }
.stats-grid.two { grid-template-columns: repeat(2, 1fr); }
.stat {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px; display: flex; align-items: center; gap: 14px;
}
.stat-ico {
  width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
}
.i-plan { background: #eef0fe; color: var(--primary); }
.i-node { background: #e5f8ee; color: var(--success); }
.i-flow { background: #fff4e5; color: var(--warning); }
.i-user { background: #fdeeee; color: var(--danger); }
.i-gift { background: #fdeef9; color: #d63384; }
.i-cash { background: #eef9f0; color: #2f9e44; }
.stat-label { font-size: 12.5px; color: var(--muted); font-weight: 700; }
.stat-val { font-size: 20px; font-weight: 800; color: var(--dark); line-height: 1.3; word-break: break-all; }
.stat-sub { font-size: 12px; color: var(--muted); }

/* ---------- 欢迎条 ---------- */
.welcome {
  background: linear-gradient(120deg, #6777ef 0%, #6f42c1 100%);
  border-radius: var(--radius); padding: 26px 28px; color: #fff; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  box-shadow: 0 10px 30px rgba(103, 119, 239, .35);
}
.welcome h2 { font-size: 22px; font-weight: 800; }
.welcome .muted { color: rgba(255, 255, 255, .8); }
.welcome-actions { display: flex; gap: 10px; }
.welcome .btn.primary { background: #fff; color: var(--primary); box-shadow: none; }
.welcome .btn.ghost { background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .35); color: #fff; }

/* ---------- 复制行 / 订阅 ---------- */
.copy-row { display: flex; gap: 10px; }
.copy-row input {
  flex: 1; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px;
  font-size: 13px; color: var(--text); background: #fafbff; outline: none;
}
.sub-row { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.sub-row:last-child { border-bottom: 0; }
.sub-row .sub-name { width: 120px; font-weight: 700; color: var(--dark); flex-shrink: 0; }
.sub-row input { flex: 1; border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; font-size: 12.5px; background: #fafbff; color: var(--text); outline: none; }

/* ---------- 套餐 ---------- */
.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.plan-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 26px 22px;
  text-align: center; position: relative; transition: all .2s;
}
.plan-card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(47, 51, 94, .12); }
.plan-card .tag {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; font-size: 12px; font-weight: 700;
  padding: 4px 14px; border-radius: 20px; box-shadow: 0 4px 12px rgba(103, 119, 239, .4);
}
.plan-card h3 { font-size: 18px; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.plan-card .price { font-size: 36px; font-weight: 900; color: var(--primary); margin-bottom: 4px; }
.plan-card .price small { font-size: 14px; color: var(--muted); font-weight: 600; }
.plan-card ul { list-style: none; margin: 14px 0 18px; text-align: left; }
.plan-card li { padding: 5px 0; font-size: 13.5px; color: var(--text); }
.plan-card li::before { content: "✓"; color: var(--success); font-weight: 800; margin-right: 8px; }
.plan-card.featured {
  border: 2px solid var(--primary);
  background: linear-gradient(180deg, #fff 0%, #f5f6ff 100%);
  box-shadow: 0 14px 40px rgba(103, 119, 239, .22);
}
.ch-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }

/* ---------- 节点 ---------- */
.node-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.node-card {
  background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
  display: flex; align-items: center; gap: 12px; transition: all .15s;
}
.node-card:hover { border-color: var(--primary); box-shadow: 0 6px 18px rgba(103, 119, 239, .15); }
.node-flag { font-size: 26px; width: 40px; text-align: center; }
.node-info { flex: 1; min-width: 0; }
.node-name { font-weight: 800; color: var(--dark); font-size: 14px; }
.node-host { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-status { color: var(--success); font-size: 12px; font-weight: 700; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th {
  text-align: left; padding: 11px 12px; background: #f8f9ff; color: var(--muted);
  font-size: 12.5px; font-weight: 800; white-space: nowrap; border-bottom: 1px solid var(--border);
}
td { padding: 11px 12px; border-bottom: 1px solid #eef0f8; vertical-align: middle; }
tbody tr:hover { background: #fafbff; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.badge.green { background: #e5f8ee; color: #2f9e44; }
.badge.yellow { background: #fff4e5; color: #b97707; }
.badge.gray { background: #eceef3; color: var(--muted); }

/* ---------- 个人中心 ---------- */
.profile-head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.profile-head h3 { font-size: 18px; font-weight: 800; color: var(--dark); }
.profile-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.profile-grid > div { background: #f8f9ff; border-radius: 8px; padding: 12px 14px; display: flex; flex-direction: column; gap: 3px; }
.profile-grid b { color: var(--dark); font-size: 14.5px; }

/* ---------- 弹窗（支付通道选择） ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(25, 28, 61, .6); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal-box {
  background: #fff; border-radius: 14px; width: min(380px, 94vw); padding: 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35); text-align: center; animation: fadeIn .2s;
}
.modal-box h3 { font-size: 17px; font-weight: 800; color: var(--dark); margin-bottom: 4px; }
.modal-box .muted { margin-bottom: 16px; }
.modal-box .btn { margin-bottom: 8px; width: 100%; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%) translateY(20px);
  background: var(--dark); color: #fff; padding: 11px 22px; border-radius: 30px; font-size: 13.5px;
  opacity: 0; pointer-events: none; transition: all .25s; z-index: 200; box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.err { background: var(--danger); }

/* ---------- 节点转换 ---------- */
details.tutorial {
  border: 1px solid var(--border); border-radius: 8px; padding: 11px 14px; margin-bottom: 10px;
  background: #fafbff;
}
details.tutorial summary { cursor: pointer; font-weight: 700; color: var(--dark); font-size: 14px; }
details.tutorial ol { margin: 8px 0 0 18px; }
details.tutorial li { margin: 4px 0; font-size: 13.5px; color: var(--text); }
select { font-family: inherit; }

/* ---------- 下载客户端 ---------- */
.download-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.download-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 24px 20px; text-align: center;
  background: linear-gradient(180deg, #fff 0%, #f8f9ff 100%);
}
.download-card h3 { font-size: 16px; font-weight: 800; color: var(--dark); margin: 10px 0 6px; }
.download-card .btn { margin-top: 12px; }
.dl-ico {
  width: 56px; height: 56px; border-radius: 14px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.i-win { background: #eef0fe; color: var(--primary); }
.i-android { background: #e5f8ee; color: #2f9e44; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .plans-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .profile-grid { grid-template-columns: repeat(2, 1fr); }
  .download-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
}
@media (max-width: 992px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 0 0 60px rgba(0, 0, 0, .4); }
  .main { margin-left: 0; }
  .nav-toggle { display: block; }
}
@media (max-width: 640px) {
  .stats-grid, .stats-grid.two { grid-template-columns: 1fr; }
  .content { padding: 14px; }
  .nav-email { display: none; }
  .copy-row { flex-direction: column; }
  .navbar { padding: 0 14px; height: 56px; }
  .page-title { font-size: 16px; }
  .welcome { padding: 20px 18px; }
  .welcome-actions { width: 100%; }
  .welcome-actions .btn { flex: 1; }
  .stat { padding: 15px; gap: 11px; }
  .stat-ico { width: 44px; height: 44px; font-size: 20px; }
  .stat-val { font-size: 17px; }
  .card { padding: 15px 14px; }
  .stats-grid { gap: 12px; }
  .plans-grid { gap: 14px; }
  .node-grid { grid-template-columns: 1fr; }
  .notice { margin: 12px 14px 0; }
  .modal-box { padding: 18px; }
  .auth-card { padding: 28px 22px 20px; }
}