/* ===== 全局 ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #4f7cff;
  --primary-d: #3b63e0;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #8a93a6;
  --border: #e7eaf3;
  --danger: #ef4444;
  --warn: #f59e0b;
  --ok: #22c55e;
  --shadow: 0 6px 24px rgba(31, 41, 55, .08);
}
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; cursor: pointer; border: none; }
input, textarea { font-family: inherit; }
a { color: var(--primary); text-decoration: none; }

/* ===== 卡片容器 ===== */
.wrap { max-width: 860px; margin: 0 auto; padding: 18px 14px 40px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

/* ===== 顶部栏 ===== */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.topbar .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.topbar .brand .logo {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #7aa2ff);
  color: #fff; display: grid; place-items: center; font-size: 16px;
}
.topbar .meta { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 12px; }

/* ===== 表单 ===== */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.input, .textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border);
  border-radius: 10px; font-size: 15px; background: #fbfcfe; color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.input:focus, .textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,124,255,.15); background: #fff;
}
.textarea { resize: none; line-height: 1.5; }
.btn {
  padding: 12px 18px; border-radius: 10px; font-size: 15px; font-weight: 600;
  background: var(--primary); color: #fff; transition: background .15s, transform .05s;
}
.btn:hover { background: var(--primary-d); }
.btn:active { transform: translateY(1px); }
.btn.block { width: 100%; }
.btn.ghost { background: #eef1f8; color: var(--text); }
.btn.ghost:hover { background: #e2e7f3; }
.btn.danger { background: #fee2e2; color: var(--danger); }
.btn.danger:hover { background: #fecaca; }
.btn.sm { padding: 7px 12px; font-size: 13px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }

/* ===== 登录卡片 ===== */
.login-card { max-width: 400px; margin: 12vh auto 0; padding: 28px 24px; text-align: center; }
.login-card h1 { font-size: 22px; margin-bottom: 6px; }
.login-card .sub { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.login-card .field { text-align: left; }
.error-tip { color: var(--danger); font-size: 13px; margin: 10px 0 0; min-height: 18px; }
.hint { color: var(--muted); font-size: 12px; margin-top: 14px; line-height: 1.6; }

/* ===== 聊天 ===== */
.chat-shell { display: flex; flex-direction: column; height: calc(100vh - 0px); max-width: 860px; margin: 0 auto; }
.chat-head { padding: 12px 16px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; background: var(--card); }
.chat-head .title { font-weight: 700; }
.chat-head .title small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.chat-body { flex: 1; overflow-y: auto; padding: 16px; background: var(--bg); }
.msg-list { display: flex; flex-direction: column; gap: 10px; }
.msg { display: flex; flex-direction: column; max-width: 78%; }
.msg .bubble {
  padding: 10px 14px; border-radius: 14px; font-size: 15px; line-height: 1.5;
  word-break: break-word; white-space: pre-wrap;
}
.msg .time { font-size: 11px; color: var(--muted); margin: 4px 6px 0; }
.msg.me { align-self: flex-end; align-items: flex-end; }
.msg.me .bubble { background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.msg.other { align-self: flex-start; align-items: flex-start; }
.msg.other .bubble { background: var(--card); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg .name { font-size: 11px; color: var(--muted); margin: 0 6px 2px; }
.chat-empty { text-align: center; color: var(--muted); padding: 40px 0; font-size: 14px; }
.chat-foot { border-top: 1px solid var(--border); padding: 10px 12px; background: var(--card); display: flex; gap: 10px; align-items: flex-end; }
.chat-foot textarea { flex: 1; min-height: 44px; max-height: 120px; }
.typing-dot { color: var(--muted); font-size: 12px; padding: 0 6px 6px; }

/* ===== 管理端布局 ===== */
.admin-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.admin-head .who { font-size: 14px; }
.admin-head .who b { color: var(--primary); }
.tabs { display: flex; gap: 6px; padding: 12px 14px 0; }
.tab { padding: 9px 16px; border-radius: 10px 10px 0 0; font-size: 14px; color: var(--muted); background: transparent; }
.tab.active { background: var(--card); color: var(--primary); font-weight: 600; border: 1px solid var(--border); border-bottom: 1px solid var(--card); position: relative; top: 1px; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: 0 12px 12px 12px; margin: 0 14px 20px; padding: 16px; }
.panel h3 { font-size: 15px; margin-bottom: 12px; }
.list { display: flex; flex-direction: column; gap: 10px; }
.list-item {
  border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; display: flex;
  align-items: center; justify-content: space-between; gap: 12px; transition: border-color .15s, background .15s;
}
.list-item:hover { border-color: var(--primary); }
.list-item.active { border-color: var(--primary); background: #f5f8ff; }
.list-item .main { flex: 1; min-width: 0; }
.list-item .key { font-weight: 600; font-size: 15px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.list-item .last { color: var(--muted); font-size: 12px; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-item .t { font-size: 12px; color: var(--muted); white-space: nowrap; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge.new { background: #fee2e2; color: var(--danger); }
.badge.idle { background: #eef1f8; color: var(--muted); }
.badge.ok { background: #dcfce7; color: var(--ok); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.empty { text-align: center; color: var(--muted); padding: 30px 0; font-size: 14px; }
.split { display: grid; grid-template-columns: 320px 1fr; gap: 16px; }
.actions { display: flex; gap: 8px; flex-shrink: 0; }
.toast { position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%); background: #1f2937; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 14px; opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 99; }
.toast.show { opacity: .95; }

/* ===== 商品网格（客户端） ===== */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.product-card { border: 1px solid var(--border); border-radius: 12px; padding: 16px; background: var(--card); transition: border-color .15s, box-shadow .15s; display: flex; flex-direction: column; gap: 8px; }
.product-card:hover { border-color: var(--primary); box-shadow: 0 4px 16px rgba(79,124,255,.1); }
.product-card .pname { font-weight: 700; font-size: 16px; }
.product-card .pdesc { color: var(--muted); font-size: 13px; flex: 1; line-height: 1.5; }
.product-card .pcost { font-size: 18px; font-weight: 700; color: var(--primary); }
.product-card .pcost small { font-size: 12px; color: var(--muted); font-weight: 400; }
.product-card .pbtn { margin-top: 4px; }

/* ===== 点数余额条（客户端） ===== */
.points-bar { display: flex; align-items: center; gap: 8px; padding: 10px 16px; background: linear-gradient(135deg, #f0f4ff, #e8eeff); border-bottom: 1px solid var(--border); font-size: 14px; }
.points-bar .pts { font-size: 20px; font-weight: 700; color: var(--primary); }

/* ===== 客户端 Tab 容器 ===== */
.cust-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); background: var(--card); }
.cust-tabs .tab { flex: 1; text-align: center; border-radius: 0; border-bottom: 2px solid transparent; }
.cust-tabs .tab.active { border-bottom-color: var(--primary); background: transparent; color: var(--primary); border: none; border-bottom: 2px solid var(--primary); top: 0; }

/* ===== 点数徽章 ===== */
.badge.pts { background: #fef3c7; color: #d97706; }
.badge.green { background: #dcfce7; color: #16a34a; }
.badge.sm { font-size: 10px; padding: 1px 6px; }

/* ===== 客户端兑换记录 ===== */
.redemption-list { display: flex; flex-direction: column; gap: 8px; }
.redemption-list .list-item { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); }
.redemption-list .li-main { flex: 1; min-width: 0; }
.redemption-list .li-title { font-weight: 600; font-size: 14px; }
.redemption-list .li-card { margin: 6px 0; font-size: 13px; color: #555; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.redemption-list .li-card code { background: #f5f5f5; padding: 2px 8px; border-radius: 4px; font-size: 13px; word-break: break-all; }
.redemption-list .li-sub { font-size: 12px; color: var(--muted); }
.redemption-list .li-cost { flex-shrink: 0; margin-left: 12px; }

/* ===== 商品卡片样式补充 ===== */
.product-card .product-name { font-weight: 700; font-size: 16px; }
.product-card .product-desc { color: var(--muted); font-size: 13px; flex: 1; line-height: 1.5; }
.product-card .product-cost { font-size: 14px; display: flex; align-items: center; gap: 6px; }

/* ===== 管理端库存面板 ===== */
.stock-panel { width: 100%; }
.stock-panel .stock-list { max-height: 240px; overflow-y: auto; }

/* ===== 客户端点数余额与标题 ===== */
.points-balance { font-size: 14px; color: #555; margin-bottom: 12px; }
.section-title { font-size: 15px; font-weight: 700; margin: 16px 0 10px; }

/* ===== 聊天：新旧消息分隔线 ===== */
.msg-divider {
  display: flex; align-items: center; justify-content: center;
  margin: 14px 0;
}
.msg-divider span {
  background: linear-gradient(90deg, var(--primary), #7aa2ff);
  color: #fff; font-size: 11px; font-weight: 600;
  padding: 4px 14px; border-radius: 20px; letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(79,124,255,.25);
}
/* ===== 新消息气泡高亮 ===== */
.msg-new .bubble {
  box-shadow: 0 0 0 2px rgba(34,197,94,.25), 0 4px 12px rgba(34,197,94,.12);
  animation: msgPulse 1.6s ease-in-out 2;
}
@keyframes msgPulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(34,197,94,.25), 0 4px 12px rgba(34,197,94,.12); }
  50% { box-shadow: 0 0 0 4px rgba(34,197,94,.15), 0 4px 16px rgba(34,197,94,.2); }
}

/* ===== 对话列表：未读对话高亮 ===== */
.conv-item { position: relative; }
.conv-item.has-unread {
  border-left: 4px solid var(--danger);
  background: linear-gradient(90deg, #fff5f5, var(--card));
}
.conv-item.has-unread .key { color: var(--danger); }

/* ===== 大徽章（wallet 余额） ===== */
.badge.big { font-size: 18px; padding: 4px 12px; }

/* ===== Tab 内容容器 ===== */
.tab-body { padding: 14px; flex: 1; overflow-y: auto; }
.tab-body > .card { padding: 16px; margin-bottom: 14px; }
.chat-shell .tab-body { padding: 0; background: var(--bg); }

/* ===== 管理端头部品牌 Logo ===== */
.admin-head .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.admin-head .brand .logo {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #7aa2ff);
  color: #fff; display: grid; place-items: center; font-size: 16px;
}

/* ===== 复选框（记住卡密/账号） ===== */
label.check {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: #555; cursor: pointer; user-select: none;
}
label.check input {
  width: 16px; height: 16px; cursor: pointer; accent-color: var(--primary);
}

/* ===== code 标签通用样式 ===== */
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  background: #f5f7fb; color: #334155; padding: 2px 8px; border-radius: 6px;
  font-size: 13px; border: 1px solid #e8ecf4;
}

/* ===== 选中的卡包 / 余额卡片 ===== */
.product-card.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(79,124,255,.18), 0 6px 20px rgba(79,124,255,.12);
  background: linear-gradient(135deg, #f5f8ff, #eef3ff);
}

/* ===== 兑换记录列表细节 ===== */
.list-item .li-title { font-weight: 600; font-size: 14px; }
.list-item .li-card { margin: 6px 0; font-size: 13px; color: #555; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.list-item .li-sub { font-size: 12px; color: var(--muted); margin-top: 4px; }
.list-item .li-cost { flex-shrink: 0; margin-left: 12px; }

/* ===== 响应式 ===== */
@media (max-width: 680px) {
  .split { grid-template-columns: 1fr; }
  .tab { padding: 9px 12px; font-size: 13px; }
  .panel { margin: 0 8px 16px; padding: 12px; }
  .list-item .t { display: none; }
  .product-grid { grid-template-columns: 1fr; }
}