:root { color-scheme: light; --ink: #24302e; --muted: #777b74; --gold: #92703d; --line: #e6e5dd; }
* { box-sizing: border-box; }
body { margin: 0; background: #f4f3ee; color: var(--ink); font: 15px/1.65 "Microsoft YaHei", "PingFang SC", sans-serif; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
.page { max-width: 1360px; margin: auto; padding: 0 42px; }
.masthead { height: 100px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 13px; color: inherit; text-decoration: none; font-size: 23px; font-weight: 700; letter-spacing: 3px; }
.seal { display: block; width: 48px; height: 48px; object-fit: contain; flex-shrink: 0; }
.brand-sub { display: block; margin-top: 1px; color: var(--muted); font-size: 10px; font-weight: 400; letter-spacing: 2px; }
.guest { color: #656d64; font-size: 12px; letter-spacing: .5px; }
.dot { display: inline-block; width: 6px; height: 6px; margin: 0 7px 2px 0; border-radius: 50%; background: #798768; }
main { display: grid; grid-template-columns: 290px minmax(0, 1fr); gap: 46px; padding: 30px 0 24px; }
.guide { padding: 18px 0; }
.eyebrow { font-size: 10px; letter-spacing: 2px; color: var(--gold); margin: 0 0 19px; }
h1 { font-size: 34px; line-height: 1.5; letter-spacing: 1px; font-weight: 500; margin: 0 0 17px; }
.intro { color: var(--muted); font-size: 13px; margin: 0 0 30px; max-width: 260px; }
.quick-questions h2 { font-size: 12px; font-weight: 400; margin: 0 0 10px; color: var(--muted); }
.quick-questions button { width: 100%; display: flex; align-items: center; justify-content: space-between; text-align: left; padding: 15px 17px; margin: 0 0 9px; border: 1px solid #e2dfd3; border-radius: 8px; background: #faf9f4; color: #42493f; font-size: 13px; transition: border-color .2s, background .2s; }
.quick-questions button:hover:not(:disabled) { border-color: #b39b74; background: #fffdf8; }
.quick-questions button:disabled { cursor: default; opacity: .6; }
.quick-questions small { display: block; color: #9c8967; font-size: 10px; letter-spacing: 1px; margin-bottom: 3px; }
.quick-questions button > span:last-child { color: #ac9979; font-size: 18px; }
.privacy-note { margin-top: 28px; border-left: 2px solid #c7bda6; padding-left: 12px; color: var(--muted); font-size: 11px; }
.privacy-note strong { color: #656b61; font-weight: 500; }
.privacy-note p { margin: 4px 0 0; }
.chat-panel { display: flex; flex-direction: column; min-width: 0; height: calc(100vh - 188px); height: calc(100dvh - 188px); min-height: 560px; max-height: 900px; background: #fff; border: 1px solid #dedfd7; border-radius: 15px; overflow: hidden; box-shadow: 0 12px 45px #32342106; }
.chat-toolbar { display: flex; justify-content: space-between; align-items: center; padding: 11px 20px; border-bottom: 1px solid #efeee8; font-size: 11px; color: #7d816f; }
.chat-toolbar button { border: 0; padding: 2px 0; background: none; color: #8a734e; font-size: 11px; }
.chat-toolbar button:hover { text-decoration: underline; }
.notice { padding: 11px 20px; background: #f9f5ec; color: #9a8056; font-size: 11px; }
.notice strong { color: #8a6a37; margin-right: 9px; font-weight: 500; }
.chat-space { position: relative; flex: 1; min-height: 0; }
iframe { display: block; border: 0; width: 100%; height: 100%; background: #fff; }
[hidden] { display: none !important; }
.loading { position: absolute; inset: 0; background: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 25px; text-align: center; }
.loading-mark { font: 44px "SimSun", serif; color: #b09c77; }
.loading h2 { font-size: 17px; font-weight: 500; margin: 19px 0 5px; }
.loading p { color: var(--muted); font-size: 12px; }
.loading .browser-help { margin-top: 26px; font-size: 11px; line-height: 1.9; }
.browser-help a { color: #92703d; }
.session-note { margin: 0; padding: 10px 18px; border-top: 1px solid #f0eee8; background: #fcfcf9; color: #8a8d82; font-size: 10px; }
footer { display: flex; justify-content: space-between; padding: 0 0 18px; color: #95968e; font-size: 10px; letter-spacing: .3px; }
.no-script { position: fixed; left: 10%; right: 10%; top: 35%; padding: 30px; background: #fff; border: 1px solid #b39b74; }
@media (max-width: 1050px) {
  .page { padding: 0 24px; }
  main { grid-template-columns: 235px minmax(0, 1fr); gap: 25px; }
  h1 { font-size: 29px; }
  .masthead { height: 82px; }
  .chat-panel { height: calc(100dvh - 165px); }
}
@media (max-width: 760px) {
  .page { padding: 0 12px; }
  .masthead { height: 70px; }
  .brand { font-size: 18px; gap: 9px; }
  .seal { width: 37px; height: 37px; }
  .guest { font-size: 10px; }
  main { display: block; padding: 12px 0; }
  .guide { display: none; }
  .chat-panel { height: calc(100vh - 120px); height: calc(100dvh - 120px); min-height: 430px; border-radius: 10px; }
  .notice { padding: 9px 12px; font-size: 10px; }
  .notice strong { display: block; }
  .chat-toolbar { padding: 9px 13px; }
  .session-note { padding: 8px 12px; }
  footer { font-size: 9px; padding-bottom: 8px; }
}