/* 清珞客服：沿用品牌红，以文字、留白和分隔线建立层次；所有样式限定在组件内部。 */
.tl-support {
  --tl-primary: #a32d37;
  --tl-primary-hover: #84212a;
  --tl-ink: #252a31;
  --tl-muted: #6d737b;
  --tl-line: #e6e7e9;
  --tl-canvas: #f6f6f5;
  --tl-soft: #f7edef;
  --tl-safe: env(safe-area-inset-bottom, 0px);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--tl-ink);
  text-align: left;
}
.tl-support * { box-sizing: border-box; }
.tl-support[hidden], .tl-support [hidden] { display: none !important; }
.tl-support button, .tl-support input, .tl-support textarea, .tl-support select { font: inherit; }
.tl-support button { cursor: pointer; }
.tl-support button:disabled { cursor: default; opacity: .55; }
.tl-support button:focus-visible, .tl-support input:focus-visible, .tl-support textarea:focus-visible,
.tl-support select:focus-visible, .tl-support a:focus-visible { outline: 2px solid var(--tl-primary); outline-offset: 3px; }
.tl-support svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* 常驻入口保留可读文字；手机端同样不依赖用户猜测图标含义。 */
.tl-support-launcher {
  position: fixed; z-index: 10001; bottom: calc(24px + var(--tl-safe)); right: 24px;
  min-width: 128px; height: 48px; padding: 0 18px; border: 1px solid #d8dadd; border-radius: 6px;
  background: #fff; color: var(--tl-ink); box-shadow: 0 4px 16px #191d241a;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  transition: border-color .15s, box-shadow .15s;
}
.tl-support-launcher:hover { border-color: var(--tl-primary); box-shadow: 0 4px 18px #191d2426; }
.tl-support-launcher svg { width: 23px; height: 23px; color: var(--tl-primary); }
.tl-support-launcher-label { font-size: 14px; font-weight: 600; white-space: nowrap; }
.tl-support-badge {
  position: absolute; right: -6px; top: -7px; min-width: 20px; padding: 0 5px; height: 20px;
  border: 2px solid #fff; border-radius: 10px; background: var(--tl-primary); color: #fff; font-size: 11px; line-height: 16px;
}
.tl-support-panel {
  position: fixed; z-index: 10002; right: 24px; bottom: calc(84px + var(--tl-safe));
  width: 408px; max-width: calc(100vw - 32px); height: 624px;
  max-height: calc(100dvh - 108px - var(--tl-safe));
  max-height: min(624px, calc(var(--tl-vh, 100vh) - 108px - var(--tl-safe)));
  background: #fff; border: 1px solid #dcdee1; border-radius: 10px;
  box-shadow: 0 16px 48px #20252b26, 0 2px 8px #20252b0a;
  display: flex; flex-direction: column; overflow: hidden;
}
.tl-support-header { padding: 20px; background: #fff; display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.tl-support-mark { width: 32px; display: flex; align-items: center; justify-content: center; color: var(--tl-primary); flex-shrink: 0; }
.tl-support-mark svg { width: 28px; height: 28px; }
.tl-support-heading { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.tl-support-heading strong { display: block; color: var(--tl-ink); font-size: 17px; font-weight: 600; line-height: 1.5; }
.tl-support-status { font-size: 12px; color: var(--tl-muted); margin-top: 3px; }
.tl-support-close { border: 0; border-radius: 4px; background: transparent; color: var(--tl-muted); padding: 6px; width: 40px; height: 40px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.tl-support-close svg { width: 28px; height: 28px; stroke-width: 2.2; }
.tl-support-close:hover { background: var(--tl-canvas); color: var(--tl-ink); }
.tl-support-tabs { display: flex; padding: 0 20px; gap: 24px; border-bottom: 1px solid var(--tl-line); flex-shrink: 0; background: #fff; }
.tl-support-tab { flex: 1; background: transparent; color: var(--tl-muted); border: 0; border-bottom: 2px solid transparent; border-radius: 0; padding: 11px 0; margin-bottom: -1px; font-size: 13px; white-space: nowrap; }
.tl-support-tab[aria-selected=true] { color: var(--tl-ink); border-bottom-color: var(--tl-primary); font-weight: 600; }
.tl-support-tab:hover { color: var(--tl-primary); }
.tl-support-notice { margin: 0; padding: 10px 20px; background: #fff7e9; border-bottom: 1px solid #f2e4c9; color: #78551f; font-size: 12px; flex-shrink: 0; }
.tl-support-content { flex: 1; min-height: 0; display: flex; flex-direction: column; background: var(--tl-canvas); }
.tl-support-view { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.tl-support-scroll { flex: 1; min-height: 0; overflow: auto; overscroll-behavior: contain; padding: 20px; scroll-behavior: auto; scrollbar-width: thin; scrollbar-color: #cdd0d3 transparent; }
.tl-support-welcome { color: #515862; border-left: 2px solid #c7cbd0; padding: 0 0 0 12px; margin: 0 0 20px; font-size: 13px; line-height: 1.8; white-space: pre-wrap; }
.tl-support-topic { padding: 9px 20px; background: #fff; border-bottom: 1px solid var(--tl-line); display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--tl-muted); }
.tl-support-topic select { min-width: 0; max-width: 142px; flex: 1; border: 0; padding: 3px 0; background: transparent; color: var(--tl-ink); font-size: 12px; }
.tl-support-topic [data-action=history] { margin-left: auto; white-space: nowrap; }

.tl-support-row { display: flex; margin: 20px 0; flex-direction: column; align-items: flex-start; }
.tl-support-row.is-own { align-items: flex-end; }
.tl-support-meta { font-size: 11px; color: var(--tl-muted); margin: 0 0 6px; }
.tl-support-bubble { max-width: 88%; border-radius: 0 6px 6px 6px; background: #fff; border: 1px solid #e3e4e6; padding: 10px 12px; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14px; line-height: 1.7; }
.tl-support-row.is-own .tl-support-bubble { background: #edeef0; border-color: #e5e6e8; color: var(--tl-ink); border-radius: 6px 0 6px 6px; }
.tl-support-message-content { display: flex; align-items: flex-end; gap: 4px; max-width: 100%; min-width: 0; }
.tl-support-message-content > .tl-support-bubble { min-width: 0; max-width: calc(100% - 36px); }
.tl-support-message-content > .tl-support-bubble:only-child { max-width: 100%; }
.tl-support-row.is-own .tl-support-message-content { flex-direction: row-reverse; }
.tl-support-message-body { display: block; }
.tl-support-quote-action { display: flex; align-items: center; justify-content: center; flex: 0 0 32px; width: 32px; height: 32px; border: 0; border-radius: 4px; color: var(--tl-muted); background: transparent; }
.tl-support-quote-action svg { width: 14px; height: 14px; }
.tl-support-quote-action:hover:not(:disabled) { color: var(--tl-primary); background: #e9e7e7; }
.tl-support-quote-card { display: flex; width: 100%; min-width: 0; max-width: 100%; border: 0; border-left: 2px solid #bac0c5; border-radius: 2px; padding: 7px 9px; margin: 0 0 8px; background: #f0f1f2; color: var(--tl-muted); text-align: left; white-space: normal; }
.tl-support-quote-card:hover { border-left-color: var(--tl-primary); background: #e8e9eb; }
.tl-support-quote-content { display: block; min-width: 0; max-width: 100%; overflow: hidden; }
.tl-support-quote-author { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-weight: 500; color: #535960; font-size: 11px; line-height: 1.5; }
.tl-support-quote-text { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; overflow-wrap: anywhere; white-space: pre-wrap; font-size: 12px; line-height: 1.5; margin-top: 2px; }
.tl-support-quote-file { display: flex; align-items: center; gap: 5px; max-width: 100%; min-width: 0; margin-top: 3px; font-size: 11px; }
.tl-support-quote-file svg { width: 14px; height: 14px; }
.tl-support-quote-file > span { min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.tl-support-quote-draft { display: flex; align-items: center; gap: 8px; padding: 7px 8px 7px 10px; margin: 4px 0 7px; border-left: 2px solid var(--tl-primary); background: var(--tl-canvas); min-width: 0; }
.tl-support-quote-draft > .tl-support-quote-content { flex: 1; }
.tl-support-quote-draft .tl-support-quote-text { -webkit-line-clamp: 1; }
.tl-support-quote-cancel { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; flex-shrink: 0; border: 0; border-radius: 4px; background: transparent; color: var(--tl-muted); font-size: 22px; padding: 0; }
.tl-support-quote-cancel:hover:not(:disabled) { color: var(--tl-primary); background: #ece9e9; }
.tl-support-row.is-quote-target { outline: 2px solid #c98b91; outline-offset: 5px; border-radius: 3px; }
.tl-support-row.is-system { align-items: center; }
.tl-support-row.is-system .tl-support-bubble { background: transparent; border: 0; color: var(--tl-muted); font-size: 12px; padding: 3px; }
.tl-support-row.is-ai .tl-support-meta { color: var(--tl-primary); }
.tl-support-ai-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 5px 18px; border-top: 1px solid var(--tl-line); background: #fff; flex-shrink: 0; }
.tl-support-ai-actions > span { color: var(--tl-muted); font-size: 11px; }
.tl-support-ai-actions .tl-support-tool { color: var(--tl-primary); padding: 6px 0; }
.tl-support-quick-questions { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin: 12px 0 20px; }
.tl-support-quick-questions > p { margin: 0 0 3px; }
.tl-support-quick-question { max-width: 100%; text-align: left; overflow-wrap: anywhere; border: 1px solid #d9dcdf; border-radius: 6px; padding: 8px 12px; background: #fff; color: var(--tl-ink); font-size: 13px; }
.tl-support-quick-question:hover { border-color: var(--tl-primary); color: var(--tl-primary); }
.tl-support-sources { max-width: 88%; margin-top: 8px; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; font-size: 11px; color: var(--tl-muted); }
.tl-support-source { padding: 2px 0; background: transparent; border: 0; text-decoration: underline; text-underline-offset: 3px; color: var(--tl-primary); text-align: left; overflow-wrap: anywhere; max-width: 100%; font-size: 12px; }
.tl-support-ai-pending { color: var(--tl-muted); font-size: 12px; padding: 8px 0; }
.tl-support-file { display: block; border: 1px solid #d8dadd; background: #fff; color: var(--tl-primary); border-radius: 4px; padding: 7px 10px; max-width: 100%; white-space: normal; overflow-wrap: anywhere; text-align: left; margin-top: 6px; }
.tl-support-image { display: block; width: 220px; max-width: 100%; padding: 0; border: 0; border-radius: 4px; overflow: hidden; background: #fff; color: var(--tl-muted); cursor: zoom-in; }
.tl-support-image img { display: block; width: 100%; height: 160px; object-fit: contain; }
.tl-support-image.is-loading { min-height: 160px; font-size: 12px; cursor: progress; }
.tl-support-file-info { display: flex; align-items: baseline; gap: 8px; min-width: 0; text-align: left; }
.tl-support-image .tl-support-file-info { padding: 5px 6px; font-size: 11px; }
.tl-support-file-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tl-support-file-size { flex-shrink: 0; color: var(--tl-muted); white-space: nowrap; font-size: 11px; }
.tl-support-bubble:has(> .tl-support-image) { padding: 5px; }
/* 放大图复用已鉴权的内存 URL，不产生公开地址；手机和桌面均支持 Esc / 关闭按钮。 */
.tl-support-image-viewer { position: fixed; z-index: 10010; inset: 0; height: var(--tl-vh, 100dvh); top: var(--tl-top, 0px); display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 16px 24px calc(24px + var(--tl-safe)); background: rgba(20, 23, 28, .94); color: #fff; }
.tl-support-image-bar { display: flex; align-items: center; gap: 20px; width: 100%; flex-shrink: 0; }
.tl-support-image-title { margin-right: auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; font-size: 13px; }
.tl-support-image-download { color: #fff; white-space: nowrap; font-size: 13px; text-decoration: underline; }
.tl-support-image-close { width: 40px; height: 40px; flex-shrink: 0; border: 1px solid #6d737b; border-radius: 4px; color: #fff; background: transparent; font-size: 26px; line-height: 1; }
.tl-support-image-viewer > img { display: block; flex: 1; min-height: 0; width: 100%; object-fit: contain; }
.tl-support-receipt { font-size: 11px; color: var(--tl-muted); margin: 5px 0 0; }

/* 输入区按工具、正文、发送三层排布，次要操作不与发送按钮争夺视觉权重。 */
.tl-support-composer { padding: 8px 18px 14px; background: #fff; border-top: 1px solid var(--tl-line); flex-shrink: 0; }
.tl-support-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 0 16px; margin: 0 0 5px; }
.tl-support-tool { display: inline-flex; align-items: center; gap: 5px; border: 0; background: transparent; padding: 7px 0; color: var(--tl-muted); font-size: 12px; text-align: left; }
.tl-support-tool svg { width: 15px; height: 15px; }
.tl-support-tool:hover { color: var(--tl-primary); }
.tl-support-composer textarea { display: block; resize: none; width: 100%; height: 76px; max-height: 130px; border: 1px solid transparent; border-radius: 3px; color: var(--tl-ink); background: #fff; font-size: 13px; padding: 7px 0; }
.tl-support-composer textarea::placeholder, .tl-support-form input::placeholder, .tl-support-form textarea::placeholder { color: var(--tl-muted); opacity: 1; }
.tl-support-composer textarea:focus { outline: 1px solid #d4d6da; outline-offset: 3px; }
.tl-support-compose-bottom { display: flex; align-items: center; gap: 16px; justify-content: space-between; }
.tl-support-compose-bottom .tl-support-hint { margin: 0; max-width: 235px; font-size: 10px; }
.tl-support-send, .tl-support-primary { border: 1px solid transparent; border-radius: 4px; background: var(--tl-primary); color: #fff; padding: 8px 18px; font-size: 13px; font-weight: 500; transition: background .15s; white-space: nowrap; }
.tl-support-send { margin-left: auto; }
.tl-support-send:hover:not(:disabled), .tl-support-primary:hover:not(:disabled) { background: var(--tl-primary-hover); }
.tl-support-hint { color: var(--tl-muted); font-size: 11px; line-height: 1.7; margin: 7px 0 0; }
.tl-support-attached { font-size: 12px; color: var(--tl-ink); display: flex; align-items: center; gap: 12px; margin: 4px 0 8px; padding: 8px; border: 1px solid var(--tl-line); border-radius: 4px; background: var(--tl-canvas); }
.tl-support-draft-image { width: 72px; height: 60px; flex-shrink: 0; padding: 0; overflow: hidden; border: 1px solid var(--tl-line); border-radius: 3px; background: #fff; cursor: zoom-in; }
.tl-support-draft-image img { display: block; width: 100%; height: 100%; object-fit: contain; }
.tl-support-draft-details { flex: 1; min-width: 0; }
.tl-support-draft-name { display: block; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tl-support-draft-details small { display: block; margin-top: 4px; color: var(--tl-muted); font-size: 11px; }
.tl-support-remove { flex-shrink: 0; padding: 8px 4px; }

.tl-support-form { display: flex; flex-direction: column; gap: 14px; }
.tl-support-form label { font-size: 12px; font-weight: 500; }
.tl-support-input, .tl-support-form input, .tl-support-form textarea, .tl-support-form select { display: block; width: 100%; border: 1px solid #d5d8dc; background: #fff; border-radius: 4px; padding: 9px 10px; color: var(--tl-ink); font-size: 13px; margin-top: 5px; }
.tl-support-form textarea { resize: vertical; min-height: 90px; }
.tl-support-search { display: flex; gap: 8px; padding: 16px 20px; background: #fff; border-bottom: 1px solid var(--tl-line); }
.tl-support-search input { margin: 0; min-width: 0; }
.tl-support-list-card { display: block; width: 100%; text-align: left; background: transparent; border: 0; border-bottom: 1px solid #dedfe2; border-radius: 0; padding: 14px 0; margin: 0; color: var(--tl-ink); }
.tl-support-list-card:hover { color: var(--tl-primary); }
.tl-support-list-card strong { display: block; overflow-wrap: anywhere; font-size: 14px; font-weight: 500; }
.tl-support-list-card small { display: block; color: var(--tl-muted); margin-top: 5px; }
.tl-support-empty { color: var(--tl-muted); padding: 32px 8px; text-align: center; font-size: 13px; }
.tl-support-back { border: 0; background: none; color: var(--tl-primary); padding: 0 0 12px; font-size: 13px; }
.tl-support-history-actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 8px; }
.tl-support-history-actions > .tl-support-back { padding: 8px 0; min-height: 40px; }
.tl-support-history-actions > .tl-support-primary { min-height: 40px; }
.tl-support-article { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14px; line-height: 1.85; }
.tl-support-article h3 { font-size: 18px; margin: 0 0 12px; }
.tl-support-scroll > h3, .tl-support-meta, .tl-support-welcome { overflow-wrap: anywhere; }
.tl-support-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.tl-support-secondary { border: 1px solid #cdd0d4; color: var(--tl-ink); background: #fff; border-radius: 4px; padding: 8px 12px; font-size: 12px; }
.tl-support-secondary:hover { border-color: var(--tl-primary); color: var(--tl-primary); }
.tl-support-feedback { padding: 14px 0; border-top: 1px solid var(--tl-line); margin: 16px 0; }
.tl-support-feedback .tl-support-actions { margin-bottom: 0; }

@media (max-width: 600px) {
  .tl-support-launcher { right: 16px; bottom: calc(16px + var(--tl-safe)); min-width: 114px; height: 46px; padding: 0 14px; gap: 8px; }
  .tl-support-panel { right: 0; bottom: auto; top: var(--tl-top, 0px); width: 100%; max-width: 100%; height: var(--tl-vh, 100dvh); max-height: var(--tl-vh, 100dvh); border: 0; border-radius: 0; }
  .tl-support-header { padding: 16px; }
  .tl-support-tabs { padding: 0 16px; gap: 20px; }
  .tl-support-tab { min-height: 44px; }
  .tl-support-topic { padding: 7px 16px; }
  .tl-support-composer { padding: 4px 16px calc(12px + var(--tl-safe)); }
  .tl-support-tools { gap: 0 16px; }
  .tl-support-tools .tl-support-tool { min-height: 40px; }
  .tl-support-send { min-height: 40px; }
  .tl-support-composer textarea, .tl-support-form input, .tl-support-form textarea, .tl-support-input { font-size: 16px; }
  .tl-support-panel:not([hidden]) ~ .tl-support-launcher { visibility: hidden; }
  .tl-support-scroll { padding: 16px; }
  .tl-support-quote-action, .tl-support-quote-cancel { width: 40px; height: 40px; }
  .tl-support-quote-action { flex-basis: 40px; }
  .tl-support-message-content > .tl-support-bubble { max-width: calc(100% - 44px); }
  .tl-support-message-content > .tl-support-bubble:only-child { max-width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .tl-support * { transition: none !important; scroll-behavior: auto !important; } }