:root {
  --bg-0: #080e1c;
  --bg-1: #0d1728;
  --card: rgba(18, 28, 47, .82);
  --card-solid: #121c2f;
  --border: rgba(148, 163, 184, .16);
  --border-strong: rgba(148, 163, 184, .3);
  --text: #e6edf7;
  --text-2: #9fb0c8;
  --text-3: #6b7d96;
  --accent: #38bdf8;
  --accent-2: #6366f1;
  --accent-soft: rgba(56, 189, 248, .12);
  --ok: #34d399;
  --ok-soft: rgba(52, 211, 153, .12);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, .12);
  --warn: #fbbf24;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(2, 6, 17, .45);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: system-ui, "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(1100px 600px at 15% -10%, rgba(56, 189, 248, .10), transparent 55%),
    radial-gradient(900px 600px at 105% 10%, rgba(99, 102, 241, .12), transparent 55%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0));
  min-height: 100vh;
}
.hidden { display: none !important; }
#app { min-height: 100vh; display: flex; flex-direction: column; }

/* ---------------- 顶部栏 ---------------- */
header#topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding: 10px 22px;
  background: rgba(13, 23, 40, .75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { display: block; filter: drop-shadow(0 2px 10px rgba(56,189,248,.35)); }
.brand-name { font-weight: 800; font-size: 19px; letter-spacing: .3px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand-sub { font-size: 12px; color: var(--text-3); font-weight: 400; }
#nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
#nav .nav-user {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--text-2); font-size: 13px; margin-right: 6px;
  padding: 4px 10px; background: var(--accent-soft); border: 1px solid var(--border);
  border-radius: 999px;
}
#nav .nav-user svg { color: var(--accent); }
#nav button.nav-item {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid transparent; background: transparent;
  color: var(--text-2); padding: 7px 14px; border-radius: 10px;
  cursor: pointer; font-size: 14px; font-family: inherit;
  transition: all .18s ease;
}
#nav button.nav-item:hover { color: var(--text); background: rgba(148,163,184,.08); }
#nav button.nav-item.active {
  color: #fff;
  background: linear-gradient(120deg, rgba(56,189,248,.22), rgba(99,102,241,.22));
  border-color: rgba(56,189,248,.35);
  box-shadow: inset 0 0 0 1px rgba(56,189,248,.12);
}
#nav button.nav-logout {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-2); padding: 7px 13px; border-radius: 10px;
  cursor: pointer; font-size: 14px; font-family: inherit;
  transition: all .18s ease;
}
#nav button.nav-logout:hover { color: var(--danger); border-color: rgba(248,113,113,.4); background: var(--danger-soft); }

/* ---------------- 视图容器 ---------------- */
main#views { flex: 1; padding: 26px 22px 48px; max-width: 980px; width: 100%; margin: 0 auto; }
.view { animation: fadeUp .28s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------------- 认证页 ---------------- */
.auth-shell {
  min-height: calc(100vh - 40px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 22px; padding: 30px 14px;
}
/* 解锁页不显示品牌 logo/Vault，仅保留解锁卡片并居中 */
#view-unlock .auth-brand { display: none; }
.auth-brand { text-align: center; }
.auth-logo { filter: drop-shadow(0 4px 22px rgba(56,189,248,.4)); }
.auth-title {
  font-size: 30px; font-weight: 800; margin-top: 8px; letter-spacing: 1px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.auth-sub { color: var(--text-3); font-size: 13.5px; margin-top: 2px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.card-narrow { width: 100%; max-width: 420px; margin: 0 auto; }
.card-vault { padding: 26px 28px; }
h1 { font-size: 21px; margin: 0 0 4px; letter-spacing: .2px; }
h2 { font-size: 15.5px; margin: 0 0 12px; display: flex; align-items: center; gap: 8px; color: var(--text); }
h2 svg { color: var(--accent); }
.muted { color: var(--text-2); }
.muted.small { font-size: 13px; }
.muted.small.tip { color: var(--text-3); margin-top: 8px; }
.center { text-align: center; }
.switch-line { margin-top: 16px; font-size: 14px; }
a { color: var(--accent); text-decoration: none; font-weight: 600; }
a:hover { text-decoration: underline; }
.act-user { color: var(--accent); }

/* ---------------- 表单 ---------------- */
label { display: block; margin: 14px 0 5px; font-size: 13.5px; font-weight: 600; color: var(--text-2); }
input[type="text"], input[type="password"], textarea {
  width: 100%;
  padding: 11px 13px;
  background: rgba(10, 18, 33, .75);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus, textarea:focus {
  outline: none;
  border-color: rgba(56, 189, 248, .65);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, .16);
}
input::placeholder, textarea::placeholder { color: var(--text-3); }
textarea { resize: vertical; min-height: 68px; }
button {
  font-family: inherit; font-size: 14px; font-weight: 600;
  padding: 10px 18px; border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(148,163,184,.08);
  color: var(--text);
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  transition: all .16s ease;
}
button:hover { background: rgba(148,163,184,.15); border-color: var(--border-strong); }
button:active { transform: scale(.97); }
button:disabled { opacity: .55; cursor: not-allowed; transform: none; }
button.primary {
  color: #fff;
  border: none;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px rgba(56, 189, 248, .28);
}
button.primary:hover { filter: brightness(1.1); box-shadow: 0 8px 24px rgba(56, 189, 248, .4); }
button.primary:active { filter: brightness(.96); }
button.ghost { background: transparent; border-color: var(--border); }
button.ghost:hover { background: rgba(148,163,184,.1); }
button.danger { color: var(--danger); border-color: rgba(248,113,113,.35); background: transparent; }
button.danger:hover { background: var(--danger-soft); border-color: rgba(248,113,113,.5); }
form { margin-bottom: 6px; }

.auth-shell .card-narrow form > button.primary {
  width: 100%;
  margin-top: 18px;
}

/* 危险确认按钮（自定义弹窗） */
button.primary.danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  box-shadow: 0 6px 18px rgba(239, 68, 68, .28);
}
button.primary.danger:hover { background: linear-gradient(135deg, #f87171, #ef4444); }

/* 只读输入（站点下新增账号锁定名称） */
input.locked, textarea.locked {
  color: var(--text-2);
  background: rgba(148, 163, 184, .07);
  cursor: not-allowed;
  border-color: var(--border);
}
input.locked:focus, textarea.locked:focus {
  border-color: var(--border);
  box-shadow: none;
}

/* 确认弹窗 */
.confirm-box { max-width: 400px; }
.confirm-box #confirm-text { margin-top: 6px; font-size: 14px; line-height: 1.75; color: var(--text-2); }
.confirm-box .modal-actions { margin-top: 20px; }

/* ---------------- 消息 ---------------- */
.msg { margin-top: 14px; padding: 10px 14px; border-radius: 10px; font-size: 14px; display: none; }
.msg.error { display: block; background: var(--danger-soft); color: var(--danger); border: 1px solid rgba(248,113,113,.35); }
.msg.ok { display: block; background: var(--ok-soft); color: var(--ok); border: 1px solid rgba(52,211,153,.35); }

/* ---------------- 保险库 ---------------- */
.vault-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.vault-head h1 { font-size: 24px; }
.toolbar { margin: 18px 0 16px; display: flex; align-items: center; gap: 12px; justify-content: space-between; }
.search-wrap { position: relative; max-width: 380px; flex: 1; }
.search-icon { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--text-3); pointer-events: none; }
#search-input { padding-left: 40px; }
#btn-backup { display: inline-flex; align-items: center; gap: 7px; flex: none; }

.entry-list { display: grid; gap: 10px; }

/* 站点分组卡片：一个站点可挂多个子账号 */
.site-card {
  background: rgba(13, 23, 40, .6);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color .16s ease, background .16s ease;
}
.site-card:hover { border-color: rgba(56,189,248,.35); background: rgba(56,189,248,.04); }
.site-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
}
.chev { color: var(--text-3); flex-shrink: 0; transition: transform .22s ease, color .22s ease; }
.chev.open { transform: rotate(90deg); color: var(--text); }
.site-main { flex: 1; min-width: 120px; }
.site-meta { color: var(--text-3); font-size: 12.5px; margin-top: 1px; }
.site-add {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 11px; font-size: 12.5px; border-radius: 9px;
  color: var(--accent); background: var(--accent-soft);
  border: 1px solid rgba(56,189,248,.28); cursor: pointer;
  transition: background .16s ease, border-color .16s ease;
  flex-shrink: 0;
}
.site-add:hover { background: rgba(56,189,248,.2); border-color: rgba(56,189,248,.5); }

/* 站点内子账号列表 */
.site-body { border-top: 1px dashed var(--border); padding: 4px 8px 6px 48px; }
.sub-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px; border-radius: 10px;
  transition: background .16s ease;
}
.sub-item:hover { background: rgba(255,255,255,.045); }
.sub-ico { color: var(--text-3); flex-shrink: 0; margin-top: 1px; }
.sub-main { flex: 1; min-width: 120px; display: flex; flex-direction: column; gap: 1px; }
.sub-user { font-size: 13.5px; font-weight: 600; }
.sub-note { color: var(--text-3); font-size: 12px; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.entry-icon {
  width: 42px; height: 42px; border-radius: 11px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px; color: #fff;
  background: linear-gradient(135deg, #38bdf8, #6366f1);
  box-shadow: 0 4px 12px rgba(56,189,248,.25);
}
.entry-icon.c1 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.entry-icon.c2 { background: linear-gradient(135deg, #10b981, #3b82f6); }
.entry-icon.c3 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.entry-icon.c4 { background: linear-gradient(135deg, #14b8a6, #84cc16); }
.entry-icon.c5 { background: linear-gradient(135deg, #f97316, #eab308); }
.entry-site { font-weight: 700; font-size: 15px; }
.entry-actions { display: flex; gap: 6px; flex-shrink: 0; }
.entry-actions button {
  padding: 7px 12px; font-size: 13px; border-radius: 8px;
  background: transparent; border: 1px solid var(--border); color: var(--text-2);
}
.entry-actions button:hover { color: var(--text); border-color: var(--border-strong); }
.entry-actions button.del:hover { color: var(--danger); border-color: rgba(248,113,113,.45); background: var(--danger-soft); }
.empty {
  color: var(--text-3); text-align: center; padding: 60px 10px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.empty svg { opacity: .5; }

/* ---------------- 弹层 ---------------- */
.modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(5, 10, 20, .62);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  animation: fadeIn .18s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box {
  background: var(--card-solid);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  width: 100%; max-width: 480px;
  max-height: 90vh; overflow-y: auto;
  box-shadow: 0 20px 60px rgba(2,6,17,.6);
  animation: fadeUp .22s ease;
}
.modal-box h2 { font-size: 19px; margin-bottom: 4px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.pw-row { display: flex; gap: 8px; }
.pw-row input { flex: 1; font-family: var(--mono); letter-spacing: .3px; }
.pw-row button { flex-shrink: 0; padding: 10px 13px; font-size: 13.5px; }
#btn-gen svg { color: var(--accent); }
#btn-toggle-pw svg { color: var(--text-2); }

/* ---------------- 备份 / 恢复 ---------------- */
.backup-box { max-width: 560px; }
.backup-section { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }
.backup-section h3 {
  font-size: 15px; margin: 0 0 6px;
  display: flex; align-items: center; gap: 8px;
  color: var(--text-1);
}
.backup-section h3 svg { color: var(--accent); }
.backup-row { display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.backup-row label { font-size: 13.5px; color: var(--text-2); white-space: nowrap; }
.backup-row .file-input {
  flex: 1; min-width: 180px;
  background: rgba(148,163,184,.08);
  border: 1px dashed var(--border);
  border-radius: 10px; padding: 9px 12px;
  font-size: 13px; color: var(--text-2);
}
.backup-row .file-input::file-selector-button {
  background: rgba(56,189,248,.14); color: var(--accent);
  border: 1px solid rgba(56,189,248,.4);
  border-radius: 8px; padding: 6px 12px; margin-right: 10px;
  font-size: 13px; cursor: pointer;
}
.backup-row .file-input::file-selector-button:hover { filter: brightness(1.1); }
.cloud-files { margin-top: 14px; display: grid; gap: 8px; }
.cloud-file {
  display: flex; align-items: center; gap: 12px;
  background: rgba(13,23,40,.55);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 14px;
}
.cloud-file .cloud-fname { font-size: 14px; font-weight: 500; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cloud-file button {
  flex: none; padding: 7px 14px; font-size: 13px;
  background: rgba(56,189,248,.14); color: var(--accent);
  border: 1px solid rgba(56,189,248,.4); border-radius: 8px; cursor: pointer;
}
.cloud-file button:hover { filter: brightness(1.12); }

/* 管理后台云备份设置 */
.stack-form { display: grid; gap: 10px; margin-top: 14px; max-width: 460px; }
.stack-form label { font-size: 13.5px; color: var(--text-2); }
.admin-section code { background: rgba(148,163,184,.12); padding: 1px 6px; border-radius: 6px; font-size: 12.5px; }

/* ---------------- 共享密码（M3） ---------------- */
.sub-h { font-size: 15px; font-weight: 600; margin: 22px 0 10px; color: var(--text-1); }
.share-members { display: grid; gap: 8px; margin-bottom: 12px; }
.share-member {
  display: flex; align-items: center; gap: 12px;
  background: rgba(13,23,40,.55);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 14px;
}
.share-member-ico {
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px;
  background: linear-gradient(135deg, rgba(56,189,248,.22), rgba(168,85,247,.22));
  color: var(--accent);
}
.share-member-main { flex: 1; min-width: 0; }
.share-member-name { font-size: 14px; font-weight: 600; }
.share-member button { flex: none; padding: 7px 12px; font-size: 13px; }
#share-member-username { background: rgba(148,163,184,.08); border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; font-size: 13.5px; color: var(--text-1); }
#share-member-username:focus { outline: none; border-color: rgba(56,189,248,.5); }
.vault-actions button.del { color: var(--danger); border-color: rgba(248,113,113,.4); background: transparent; }
.vault-actions button.del:hover { background: var(--danger-soft); }

/* ---------------- 管理后台 ---------------- */
.admin-section { margin-top: 22px; border-top: 1px solid var(--border); padding-top: 20px; }
.switch-row { display: flex; align-items: center; gap: 12px; font-weight: 500; cursor: pointer; user-select: none; }
.switch-label { font-size: 14.5px; }
.switch-row input { display: none; }
.switch-track {
  width: 44px; height: 24px; border-radius: 999px;
  background: rgba(148,163,184,.22);
  border: 1px solid var(--border-strong);
  position: relative; transition: background .2s ease;
  flex-shrink: 0;
}
.switch-track::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #cbd5e1; transition: all .2s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,.3);
}
.switch-row input:checked + .switch-track { background: linear-gradient(120deg, var(--accent), var(--accent-2)); border-color: transparent; }
.switch-row input:checked + .switch-track::after { left: 22px; background: #fff; }
.inline-form { display: flex; gap: 10px; max-width: 420px; margin-bottom: 8px; }
.inline-form input { flex: 1; }
.table-wrap { overflow-x: auto; margin-top: 12px; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(56,189,248,.04); }
th { color: var(--text-3); font-weight: 600; font-size: 12.5px; letter-spacing: .4px; background: rgba(148,163,184,.05); }
td .tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag.admin { background: rgba(99,102,241,.18); color: #a5b4fc; border: 1px solid rgba(99,102,241,.35); }
.tag.user { background: rgba(148,163,184,.14); color: var(--text-2); border: 1px solid var(--border); }
.tag.active { background: var(--ok-soft); color: var(--ok); border: 1px solid rgba(52,211,153,.35); }
.tag.pending { background: rgba(251,191,36,.12); color: var(--warn); border: 1px solid rgba(251,191,36,.35); }
.tag.disabled { background: var(--danger-soft); color: var(--danger); border: 1px solid rgba(248,113,113,.35); }
td button { padding: 5px 11px; font-size: 12.5px; border-radius: 8px; margin-right: 4px; }

/* ---------------- 滚动条 ---------------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(148,163,184,.25); border-radius: 999px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(148,163,184,.4); background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 680px) {
  main#views { padding: 14px 10px 36px; }
  .card { padding: 18px; }
  .card-vault { padding: 18px 16px; }
  .brand-sub { display: none; }
  #topbar { padding: 8px 14px; }
  .site-body { padding-left: 14px; }
  .entry-actions { width: 100%; justify-content: flex-end; }
  .modal-box { padding: 20px; }
  table { font-size: 13px; }
}