/* ============================================================
   Live2D AI 管理后台样式 · 纯白主题
   ============================================================ */
:root {
  --bg: #ffffff;
  --bg-2: #f5f7fb;
  --card: #ffffff;
  --card-2: #ffffff;
  --line: #e6eaf2;
  --text: #1f2533;
  --muted: #6b7488;
  --primary: #3b82f6;
  --primary-2: #2563eb;
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
  --radius: 14px;
  --shadow: 0 18px 46px rgba(30, 41, 59, 0.08);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
code {
  background: #eef2f8;
  color: #334155;
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 12px;
}
.hidden { display: none !important; }

/* ---------- 登录页 ---------- */
.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(700px 420px at 85% -10%, rgba(59, 130, 246, 0.10), transparent 60%),
    radial-gradient(600px 380px at 0% 110%, rgba(37, 99, 235, 0.08), transparent 60%),
    var(--bg);
}
.auth-card {
  width: 380px;
  max-width: 100%;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 40px 36px;
  box-shadow: var(--shadow);
}
.auth-logo { font-size: 52px; text-align: center; }
.auth-card h1 {
  text-align: center;
  font-size: 21px;
  margin: 14px 0 6px;
}
.auth-sub { text-align: center; color: var(--muted); font-size: 13px; margin: 0 0 22px; }
.auth-foot { margin-top: 22px; text-align: center; color: var(--muted); font-size: 12px; line-height: 1.8; }

.msg {
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
}
.msg.err { background: #fef2f2; color: var(--err); }
.msg.ok { background: #f0fdf4; color: var(--ok); }

.field { display: block; margin-bottom: 16px; }
.field span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; }
.field input, .field textarea, .field select {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 11px 13px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}
.field textarea { resize: vertical; line-height: 1.7; font-family: inherit; }

/* 密码显隐 */
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 44px; }
.pw-wrap .pw-toggle {
  position: absolute;
  right: 6px; top: 50%; transform: translateY(-50%);
  border: none; background: transparent; cursor: pointer;
  font-size: 15px; line-height: 1; padding: 6px;
  border-radius: 8px; opacity: 0.65;
}
.pw-wrap .pw-toggle:hover { opacity: 1; background: #f0f4fb; }

/* 保存中 loading */
.btn-primary.loading, .btn-ghost.loading {
  opacity: 0.7;
  pointer-events: none;
  position: relative;
}
.btn-primary.loading::after, .btn-ghost.loading::after {
  content: '';
  display: inline-block;
  width: 12px; height: 12px;
  margin-left: 8px;
  border: 2px solid rgba(59, 130, 246, 0.3);
  border-top-color: currentColor;
  border-radius: 50%;
  vertical-align: -1px;
  animation: spin 0.8s linear infinite;
}
.btn-primary.loading::after { border-color: rgba(255,255,255,0.4); border-top-color: #fff; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(59, 130, 246, 0.35); }
.btn-block { width: 100%; display: block; margin-top: 6px; }

/* ---------- 后台主布局 ---------- */
.admin-wrap { display: flex; min-height: 100vh; }
.sidebar {
  width: 210px;
  background: #ffffff;
  border-right: 1px solid var(--line);
  padding: 22px 14px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar .brand { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; padding: 0 10px 20px; color: var(--text); }
.sidebar .brand .logo { font-size: 26px; }
.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 4px;
  transition: background 0.12s, color 0.12s;
}
.sidebar nav a:hover { background: #f0f4fb; color: var(--text); }
.sidebar nav a.active { background: linear-gradient(135deg, rgba(59,130,246,0.12), rgba(37,99,235,0.12)); color: var(--primary); font-weight: 600; }
.sidebar .side-foot { margin-top: 24px; padding: 12px 10px 0; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.sidebar .side-foot a { display: block; margin-top: 8px; }
.sidebar .side-foot button { margin-top: 8px; width: 100%; }

.content { flex: 1; padding: 30px 36px; max-width: 980px; }
.content h2 { font-size: 20px; margin: 0 0 4px; }
.content .desc { color: var(--muted); margin: 0 0 24px; font-size: 13px; line-height: 1.8; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: 0 8px 26px rgba(30, 41, 59, 0.05);
}
.card h3 { margin: 0 0 14px; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.card h3 .hint { font-weight: 400; font-size: 12px; color: var(--muted); }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
@media (max-width: 760px) { .row-2 { grid-template-columns: 1fr; } }

.save-bar {
  position: sticky;
  bottom: 16px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
  gap: 14px;
  margin-top: 10px;
}
.save-bar .save-tip { color: var(--muted); font-size: 13px; }
.save-bar .actions { display: flex; gap: 10px; }
.btn-ghost {
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 11px 18px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.btn-ghost:hover { background: #f0f4fb; border-color: #cdd7e6; }
.btn-danger {
  background: #fef2f2;
  border: 1px solid #f5c2c2;
  color: var(--err);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13px;
  cursor: pointer;
}

/* 知识库条目 */
.kb-item {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}
.kb-item .kb-head { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; }
.kb-item .kb-head input { flex: 1; }
.kb-item .kb-remove { flex-shrink: 0; }
.kb-item textarea { min-height: 70px; }
.add-btn { margin-top: 4px; }

/* 开关 */
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; }
.switch input { display: none; }
.switch .track {
  width: 42px; height: 23px; border-radius: 999px;
  background: #d6dce8; position: relative; transition: background 0.18s;
}
.switch .track::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 19px; height: 19px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.25); transition: transform 0.18s;
}
.switch input:checked + .track { background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.switch input:checked + .track::after { transform: translateX(19px); }

/* 通知 */
#toast {
  position: fixed; top: 22px; right: 26px; z-index: 999;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 20px;
  box-shadow: var(--shadow);
  opacity: 0; transform: translateY(-8px); transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  font-size: 14px;
  max-width: 360px;
  color: var(--text);
}
#toast.show { opacity: 1; transform: translateY(0); }
#toast.ok { border-color: rgba(22, 163, 74, 0.4); }
#toast.err { border-color: rgba(220, 38, 38, 0.5); }

/* 密码修改弹窗 */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.4);
  display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 20px;
}
.modal {
  background: #ffffff; border: 1px solid var(--line);
  border-radius: 16px; padding: 28px; width: 400px; max-width: 100%;
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 18px; font-size: 17px; }
.modal .modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }

.test-result {
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-all;
}
.test-result.ok { background: #f0fdf4; color: var(--ok); }
.test-result.err { background: #fef2f2; color: var(--err); }
.small-hint { font-size: 12px; color: var(--muted); margin-top: 6px; line-height: 1.8; }

.tab-nav { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.tab-nav a {
  padding: 9px 18px; border-radius: 999px;
  background: #f0f4fb; color: var(--muted);
  font-size: 13px; border: 1px solid transparent;
}
.tab-nav a.active { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; }

/* ---------- 提供方 / 绑定 ---------- */
.provider-list { display: flex; flex-direction: column; gap: 10px; }
.provider-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 16px;
  transition: border-color 0.15s;
}
.provider-item.editing { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(59,130,246,0.12); }
.provider-info { min-width: 0; flex: 1; }
.provider-info strong { font-size: 14px; }
.provider-model {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.provider-meta { color: var(--muted); font-size: 12px; margin-top: 4px; }
.provider-actions { display: flex; gap: 6px; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }
.btn-mini {
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 11px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.btn-mini:hover { background: #f0f4fb; border-color: #cdd7e6; }
.btn-mini.btn-danger { background: #fef2f2; border-color: #f5c2c2; color: var(--err); }

.provider-badges { margin-top: 12px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.provider-badges .label { color: var(--muted); font-size: 12px; }
.badge {
  display: inline-block;
  background: #f0f4fb;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 11px;
  font-size: 12px;
}
.badge-on { background: #f0fdf4; color: var(--ok); border-color: #bbe7cd; }
.badge-off { background: #fef2f2; color: var(--err); border-color: #f5c2c2; }

.card-sub {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-top: 14px;
}
.card-sub h4 { margin: 0 0 10px; font-size: 14px; }
.empty-tip {
  color: var(--muted);
  font-size: 13px;
  padding: 16px 0;
  text-align: center;
}