/* ==========================================================
   企微会话存档 SaaS —— 全站样式（移动端优先，桌面自适应）
   ========================================================== */
:root {
  --bg: #f3f5f9;
  --card: #ffffff;
  --line: #e4e8ee;
  --text: #1a2333;
  --muted: #7a8699;
  --primary: #1b5da6;
  --primary-deep: #0f3a6b;
  --ok-bg: #e6f7ec;   --ok-tx: #16794c;
  --warn-bg: #fff4e5; --warn-tx: #a86808;
  --err-bg: #fdecec;  --err-tx: #b3261e;
  --blue-bg: #e8f1fc; --blue-tx: #1b5da6;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 12px; line-height: 1.35; }
h1 { font-size: 20px; } h2 { font-size: 18px; } h3 { font-size: 16px; }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .92em; }
.hint { color: var(--muted); font-size: 12.5px; font-weight: 400; }
.mt { margin-top: 16px; }
.right { text-align: right; }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-block; border: 1px solid var(--line); background: #fff;
  color: var(--text); border-radius: 9px; padding: 9px 16px; font-size: 14px;
  cursor: pointer; line-height: 1.4; transition: filter .15s;
}
.btn:hover { filter: brightness(.97); text-decoration: none; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-deep); }
.btn.ghost { background: transparent; }
.btn.warn { background: var(--warn-bg); border-color: var(--warn-tx); color: var(--warn-tx); }
.btn.danger { background: var(--err-bg); border-color: var(--err-tx); color: var(--err-tx); }
.btn.sm { padding: 6px 12px; font-size: 13px; }
.btn.block { display: block; width: 100%; text-align: center; }
.inline-form { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 10px; }
.inline-form .field { flex: 1; min-width: 120px; margin: 0; }
form.inline { display: inline; }

.tag {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  font-size: 12px; background: #eef1f6; color: var(--muted); vertical-align: 1px;
}
.tag.ok { background: var(--ok-bg); color: var(--ok-tx); }
.tag.warn { background: var(--warn-bg); color: var(--warn-tx); }
.tag.error { background: var(--err-bg); color: var(--err-tx); }
.tag.blue { background: var(--blue-bg); color: var(--blue-tx); }
.tag.sm { font-size: 11px; padding: 1px 7px; }

.alert { border-radius: 10px; padding: 10px 14px; margin-bottom: 14px; font-size: 14px; }
.alert.error { background: var(--err-bg); color: var(--err-tx); }
.alert.success { background: var(--ok-bg); color: var(--ok-tx); }
.alert.warn { background: var(--warn-bg); color: var(--warn-tx); }
.alert.info { background: var(--blue-bg); color: var(--blue-tx); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; margin-bottom: 16px;
}
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.card-head h2 { margin: 0; }
.muted-card { background: #fafbfd; }
.danger-zone { border-color: #f3c4c0; }

.field { display: block; margin-bottom: 12px; }
.field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.field.inline { display: flex; align-items: center; gap: 8px; }
.field.inline > span { margin: 0; white-space: nowrap; }
input, select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 9px;
  font: inherit; color: var(--text); background: #fff; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
.field.inline input { width: auto; flex: 1; }
.stack > * { margin-bottom: 10px; }
.stack .hint { margin: -4px 0 6px; }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px; text-align: center; }
.stat b { display: block; font-size: 22px; color: var(--primary-deep); }
.stat span { font-size: 12px; color: var(--muted); }

.table-scroll { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th, .tbl td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.tbl.sm th, .tbl.sm td { padding: 6px 8px; font-size: 13px; }
.tbl th { color: var(--muted); font-weight: 500; font-size: 12.5px; }
.tbl td b { font-weight: 600; }
.empty { padding: 28px 12px; text-align: center; color: var(--muted); }

.kv-list { list-style: none; margin: 0; padding: 0; }
.kv-list li { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.kv-list li:last-child { border-bottom: 0; }
.kv-list li > span { color: var(--muted); flex: none; }
.kv-list li > b { font-weight: 500; text-align: right; word-break: break-all; }

/* ---------- 供应商后台布局 ---------- */
.topbar { background: var(--primary-deep); color: #fff; position: sticky; top: 0; z-index: 20; }
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 10px 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
}
.brand { font-weight: 600; font-size: 15px; }
.topnav { display: flex; gap: 4px; flex-wrap: wrap; }
.topnav a { color: rgba(255,255,255,.85); padding: 6px 10px; border-radius: 8px; font-size: 14px; }
.topnav a:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.topnav a.on { background: rgba(255,255,255,.18); color: #fff; }
.page { max-width: 1080px; margin: 0 auto; padding: 18px 16px 48px; }
.page.narrow { max-width: 640px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 720px) {
  .grid2 { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}
.qr-wrap { text-align: center; padding: 12px 0; }
.qr-wrap svg { width: 220px; height: 220px; }
.install-link {
  background: #f3f6fa; border: 1px dashed var(--line); border-radius: 8px;
  padding: 10px; font-size: 12px; word-break: break-all; color: var(--muted);
}

/* ---------- 登录/提示页 ---------- */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card {
  width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow); padding: 30px 26px; text-align: center;
}
.auth-card h1 { margin-bottom: 18px; }
.auth-brand { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.auth-card .btn { margin-top: 10px; }

/* ---------- 企业端（移动优先） ---------- */
.m-topbar {
  background: var(--primary-deep); color: #fff; padding: 12px 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  position: sticky; top: 0; z-index: 20;
}
.m-topbar h1 { font-size: 17px; margin: 0; }
.m-topbar .hint { color: rgba(255,255,255,.65); }
.m-page { max-width: 720px; margin: 0 auto; padding: 14px 12px 60px; }
.m-search { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.m-search-row { display: flex; gap: 8px; }
.m-search-row select { flex: 1; min-width: 0; }
.m-search-row input[type="date"] { flex: 1.2; min-width: 0; padding: 8px 6px; }
.m-count { color: var(--muted); font-size: 12.5px; margin: 2px 2px 8px; }

.conv-list { display: flex; flex-direction: column; gap: 8px; }
.conv-card {
  display: flex; align-items: center; gap: 12px; background: var(--card);
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; color: var(--text);
  box-shadow: var(--shadow);
}
.conv-card:active { background: #f6f9fd; text-decoration: none; }
.conv-main { flex: 1; min-width: 0; }
.conv-top { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.conv-name { font-weight: 600; font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv-time { color: var(--muted); font-size: 12px; flex: none; }
.conv-sub { color: var(--muted); font-size: 12.5px; display: flex; align-items: center; gap: 6px; margin-top: 2px; }
.chev { color: #c3cad6; font-size: 20px; flex: none; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.ok { background: #2fa36c; }
.dot.bad { background: #d95040; }

.chat-avatar {
  width: 42px; height: 42px; border-radius: 11px; color: #fff; font-weight: 600;
  font-size: 17px; display: flex; align-items: center; justify-content: center; flex: none;
}

.pager { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 16px; }

/* ---------- 聊天页 ---------- */
.chat-head { padding-left: 8px; }
.back {
  color: #fff; font-size: 26px; padding: 0 10px; line-height: 1; flex: none;
}
.back:hover { text-decoration: none; }
.chat-head-main { flex: 1; min-width: 0; }
.chat-head-main h1 {
  font-size: 16px; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chat-shell {
  max-width: 720px; margin: 0 auto; height: calc(100vh - 210px); min-height: 320px;
  display: flex; flex-direction: column; background: #eef1f6;
  border-bottom: 1px solid var(--line);
}
.chat-fallback, .chat-host { flex: 1; min-height: 0; overflow-y: auto; }
.chat-host { overflow: hidden; }
.chat-fallback { padding: 12px 10px 20px; }
.chat-day { text-align: center; margin: 12px 0 6px; }
.chat-day span {
  background: #e2e7ef; color: var(--muted); font-size: 11.5px;
  border-radius: 10px; padding: 2px 10px;
}
.chat-system { text-align: center; margin: 8px 0; }
.chat-system span { font-size: 11.5px; color: var(--muted); }
.chat-row { display: flex; gap: 8px; margin: 8px 0; align-items: flex-start; }
.chat-row .chat-avatar { width: 34px; height: 34px; border-radius: 9px; font-size: 14px; }
.chat-row.right { flex-direction: row-reverse; }
.chat-body { max-width: 82%; display: flex; flex-direction: column; }
.chat-row.right .chat-body { align-items: flex-end; }
.chat-meta { display: flex; gap: 6px; align-items: baseline; margin: 0 2px 3px; flex-wrap: wrap; }
.chat-meta .name { font-size: 12.5px; font-weight: 600; color: #475467; }
.chat-meta .time { font-size: 11px; color: #a5afbc; }
.chat-bubble {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 12px; font-size: 14px; line-height: 1.6; min-height: 18px;
}
.chat-row.right .chat-bubble { background: #d9ecff; border-color: #c4e0fc; }
.chat-plain.muted { color: var(--muted); font-size: 12.5px; }
.chat-actions {
  max-width: 720px; margin: 10px auto 40px; display: flex; gap: 10px; justify-content: center;
  padding: 0 12px;
}
.viewer-fallback {
  max-width: 720px; margin: 10px auto 0; padding: 10px 14px;
  background: #fff8ec; border: 1px solid #f0ddb8; border-radius: 10px;
  font-size: 13px; color: #7a5b13;
}
.notice-fold summary { cursor: pointer; color: #a86808; font-weight: 600; }
.notice-body { margin-top: 8px; }

@media (min-width: 760px) {
  .chat-shell { border: 1px solid var(--line); border-radius: 12px; height: calc(100vh - 240px); }
  .conv-card:hover { border-color: var(--primary); }
}