feat(client): SDK 悬浮窗口对话视觉对齐 TDesign Chat 规范

- styles.ts 对齐气泡圆角/头像/时间戳/输入框/发送按钮/加载态/操作栏/来源卡片/快捷芯片视觉
- dom.ts 微调时间戳与操作栏相对位置
- 保持零依赖 IIFE、csk-* 类名零增删改、主色变量与暗色模式同步

client/src/dom.ts

@@ -831,8 +831,8 @@ export function renderUserBubble(container: HTMLElement, text: string, timestamp
   time.className = 'csk-msg__time';
   time.textContent = formatTime(timestamp);
 
-  content.appendChild(bubble);
   content.appendChild(time);
+  content.appendChild(bubble);
   wrapper.appendChild(avatar);
   wrapper.appendChild(content);
   container.appendChild(wrapper);
@@ -866,11 +866,11 @@ export function renderAIBubble(container: HTMLElement, text: string, timestamp:
   time.className = 'csk-msg__time';
   time.textContent = formatTime(timestamp);
 
+  content.appendChild(time);
   content.appendChild(bubble);
-  // 元信息行：时间戳居左，操作按钮居右
+  // 操作栏：位于气泡下方
   const meta = document.createElement('div');
   meta.className = 'csk-msg__meta';
-  meta.appendChild(time);
   meta.appendChild(buildAIActions(bubble, wrapper));
   content.appendChild(meta);
   wrapper.appendChild(avatar);
@@ -904,11 +904,11 @@ export function createEmptyAIBubble(container: HTMLElement, timestamp: number, m
   time.className = 'csk-msg__time';
   time.textContent = formatTime(timestamp);
 
+  content.appendChild(time);
   content.appendChild(bubble);
-  // 元信息行：时间戳居左，操作按钮居右
+  // 操作栏：位于气泡下方
   const meta = document.createElement('div');
   meta.className = 'csk-msg__meta';
-  meta.appendChild(time);
   meta.appendChild(buildAIActions(bubble, wrapper));
   content.appendChild(meta);
   wrapper.appendChild(avatar);

client/src/styles.ts

@@ -27,16 +27,19 @@ function cssVars(config: ResolvedConfig): string {
     --csk-primary-light: ${lighter};
     --csk-primary-rgb: ${rgb};
     --csk-bg-user: linear-gradient(135deg, ${config.primaryColor}, ${darker});
-    --csk-bg-ai: #ffffff;
+    --csk-bg-ai: #F3F3F3;
     --csk-text-user: #ffffff;
-    --csk-text-ai: #1F2937;
+    --csk-text-ai: rgba(0, 0, 0, 0.9);
     --csk-window-width: ${config.width}px;
     --csk-window-height: ${config.height}px;
     --csk-radius: 16px;
     --csk-shadow-window: 0 12px 48px rgba(15, 23, 42, 0.18), 0 2px 8px rgba(15, 23, 42, 0.06);
-    --csk-shadow-bubble: 0 1px 2px rgba(15, 23, 42, 0.06);
-    --csk-border: #ECEEF2;
-    --csk-bg-app: #F6F7F9;
+    --csk-shadow-bubble: 0 1px 10px rgba(0, 0, 0, 0.05), 0 4px 5px rgba(0, 0, 0, 0.08);
+    --csk-border: #E8E8E8;
+    --csk-border-strong: #DDDDDD;
+    --csk-text-secondary: rgba(0, 0, 0, 0.6);
+    --csk-text-muted: rgba(0, 0, 0, 0.4);
+    --csk-bg-app: #FFFFFF;
   `;
 }
 
@@ -320,7 +323,7 @@ function getStyles(config: ResolvedConfig): string {
 .csk-messages {
   flex: 1;
   overflow-y: auto;
-  padding: 20px 16px 12px;
+  padding: 16px;
   background: var(--csk-bg-app);
   scroll-behavior: smooth;
 }
@@ -392,7 +395,7 @@ function getStyles(config: ResolvedConfig): string {
 /* 消息气泡 */
 .csk-msg {
   display: flex;
-  margin-bottom: 12px;
+  margin-bottom: 16px;
   max-width: 100%;
   word-break: break-word;
   animation: csk-msg-in 0.28s cubic-bezier(0.22, 1, 0.36, 1);
@@ -406,8 +409,8 @@ function getStyles(config: ResolvedConfig): string {
   align-items: flex-start;
 }
 .csk-msg__avatar {
-  width: 30px;
-  height: 30px;
+  width: 32px;
+  height: 32px;
   border-radius: 50%;
   display: flex;
   align-items: center;
@@ -426,17 +429,19 @@ function getStyles(config: ResolvedConfig): string {
   background: var(--csk-bg-user);
   color: #fff;
 }
+/* AI 头像与气泡顶部对齐（时间戳位于气泡上方时下移） */
+.csk-msg--ai .csk-msg__avatar { margin-top: 20px; }
 .csk-msg__content {
   display: flex;
   flex-direction: column;
   min-width: 0;
-  max-width: calc(100% - 46px);
+  max-width: calc(100% - 48px);
 }
 .csk-msg--user .csk-msg__content { align-items: flex-end; }
 .csk-msg--ai .csk-msg__content { align-items: flex-start; }
 .csk-msg__bubble {
-  padding: 10px 14px;
-  border-radius: 16px;
+  padding: 12px 16px;
+  border-radius: 12px;
   font-size: 14px;
   line-height: 1.6;
   box-shadow: var(--csk-shadow-bubble);
@@ -444,30 +449,27 @@ function getStyles(config: ResolvedConfig): string {
 .csk-msg--user .csk-msg__bubble {
   background: var(--csk-bg-user);
   color: var(--csk-text-user);
-  border-radius: 16px 16px 4px 16px;
 }
 .csk-msg--ai .csk-msg__bubble {
   background: var(--csk-bg-ai);
   color: var(--csk-text-ai);
-  border-radius: 16px 16px 16px 4px;
-  border: 1px solid var(--csk-border);
 }
 .csk-msg__time {
-  font-size: 11px;
-  color: #9CA3AF;
-  margin-top: 3px;
-  padding: 0 4px;
+  font-size: 12px;
+  line-height: 1.4;
+  color: var(--csk-text-muted);
+  margin-bottom: 4px;
+  padding: 0 2px;
+  user-select: none;
 }
 
-/* 元信息行：时间戳居左，操作按钮居右，共用一行 */
+/* 操作栏容器：位于气泡下方 */
 .csk-msg__meta {
   display: flex;
-  justify-content: space-between;
   align-items: center;
-  margin-top: 3px;
+  margin-top: 6px;
   width: 100%;
 }
-.csk-msg__meta .csk-msg__time { margin-top: 0; }
 
 @keyframes csk-msg-in {
   from { opacity: 0; transform: translateY(8px); }
@@ -482,12 +484,12 @@ function getStyles(config: ResolvedConfig): string {
 .csk-loading {
   display: flex;
   align-items: center;
-  margin-bottom: 12px;
+  margin-bottom: 16px;
   animation: csk-msg-in 0.28s ease;
 }
 .csk-loading__avatar {
-  width: 30px;
-  height: 30px;
+  width: 32px;
+  height: 32px;
   border-radius: 50%;
   background: #fff;
   color: var(--csk-primary);
@@ -501,28 +503,37 @@ function getStyles(config: ResolvedConfig): string {
 }
 .csk-loading__avatar svg { width: 18px; height: 18px; }
 .csk-loading__bubble {
-  background: #fff;
-  border: 1px solid var(--csk-border);
-  border-radius: 16px 16px 16px 4px;
-  padding: 12px 16px;
-  display: flex;
-  align-items: center;
-  gap: 5px;
+  position: relative;
+  width: 40px;
+  height: 40px;
+  padding: 0;
+  background: var(--csk-bg-ai);
+  border-radius: 12px;
+  box-shadow: var(--csk-shadow-bubble);
 }
 .csk-loading__dot {
-  width: 7px;
-  height: 7px;
+  position: absolute;
+  width: 8px;
+  height: 8px;
   border-radius: 50%;
-  background: #B4B9C2;
-  animation: csk-bounce 1.4s ease-in-out infinite both;
+  background: var(--csk-primary);
 }
-.csk-loading__dot:nth-child(1) { animation-delay: 0s; }
-.csk-loading__dot:nth-child(2) { animation-delay: 0.16s; }
-.csk-loading__dot:nth-child(3) { animation-delay: 0.32s; }
+/* TDesign 三点加载：三圆呈三角排列并向中心聚拢 */
+.csk-loading__dot:nth-child(1) { top: 9px; left: 16px; animation: csk-dot-top 0.6s ease-in-out alternate infinite; }
+.csk-loading__dot:nth-child(2) { bottom: 9px; left: 9px; animation: csk-dot-left 0.6s ease-in-out alternate infinite; }
+.csk-loading__dot:nth-child(3) { bottom: 9px; right: 9px; animation: csk-dot-right 0.6s ease-in-out alternate infinite; }
 
-@keyframes csk-bounce {
-  0%, 80%, 100% { transform: scale(0.6); opacity: 0.6; }
-  40% { transform: scale(1); opacity: 1; }
+@keyframes csk-dot-top {
+  from { transform: scale(1); top: 9px; }
+  to { transform: scale(1.75); top: 16px; }
+}
+@keyframes csk-dot-left {
+  from { transform: scale(1); bottom: 9px; left: 9px; }
+  to { transform: scale(1.75); bottom: 16px; left: 16px; }
+}
+@keyframes csk-dot-right {
+  from { transform: scale(1); bottom: 9px; right: 9px; }
+  to { transform: scale(1.75); bottom: 16px; right: 16px; }
 }
 
 /* ========== 输入区 ========== */
@@ -536,16 +547,23 @@ function getStyles(config: ResolvedConfig): string {
   display: flex;
   align-items: flex-end;
   gap: 8px;
-  background: var(--csk-bg-app);
-  border: 1px solid var(--csk-border);
-  border-radius: 14px;
+  background: #fff;
+  border: 1px solid var(--csk-border-strong);
+  border-radius: 16px;
   padding: 6px 6px 6px 14px;
-  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
+  transition: border-color 0.2s, box-shadow 0.2s;
+}
+.csk-input-wrap:hover {
+  border-color: var(--csk-primary);
+  box-shadow: var(--csk-shadow-bubble);
 }
 .csk-input-wrap--focus {
   border-color: var(--csk-primary);
   background: #fff;
-  box-shadow: 0 0 0 3px rgba(var(--csk-primary-rgb), 0.12);
+  box-shadow: 0 0 0 2px rgba(var(--csk-primary-rgb), 0.2);
+}
+.csk-input-wrap--focus:hover {
+  box-shadow: 0 0 0 2px rgba(var(--csk-primary-rgb), 0.2);
 }
 .csk-input {
   flex: 1;
@@ -561,17 +579,17 @@ function getStyles(config: ResolvedConfig): string {
   line-height: 1.5;
   color: #1F2937;
 }
-.csk-input::placeholder { color: #9CA3AF; }
+.csk-input::placeholder { color: var(--csk-text-muted); }
 .csk-root .csk-input:focus-visible { outline: none; }
 .csk-send-btn {
   display: flex;
   align-items: center;
   justify-content: center;
-  width: 36px;
-  height: 36px;
-  min-width: 36px;
+  width: 32px;
+  height: 32px;
+  min-width: 32px;
   border: none;
-  border-radius: 10px;
+  border-radius: 50%;
   background: var(--csk-bg-user);
   color: #fff;
   cursor: pointer;
@@ -584,7 +602,7 @@ function getStyles(config: ResolvedConfig): string {
 }
 .csk-send-btn:active:not(:disabled) { transform: scale(0.92); }
 .csk-send-btn:disabled {
-  background: #D1D5DB;
+  background: var(--csk-border-strong);
   box-shadow: none;
   cursor: not-allowed;
   opacity: 0.7;
@@ -667,25 +685,25 @@ function getStyles(config: ResolvedConfig): string {
 
 /* ========== P1: RAG 引用来源卡片 ========== */
 .csk-sources {
-  margin-top: 6px;
+  margin-top: 8px;
   border: 1px solid var(--csk-border);
-  border-radius: 12px;
+  border-radius: 8px;
   overflow: hidden;
   font-size: 12px;
   max-width: 100%;
-  background: #FAFBFC;
+  background: #fff;
 }
 .csk-sources__header {
   display: flex;
   align-items: center;
   justify-content: space-between;
   padding: 6px 10px;
-  background: #F3F4F7;
+  background: var(--csk-bg-ai);
   cursor: pointer;
   user-select: none;
   transition: background 0.15s;
 }
-.csk-sources__header:hover { background: #ECEEF2; }
+.csk-sources__header:hover { background: var(--csk-border); }
 .csk-sources__title {
   display: flex;
   align-items: center;
@@ -710,7 +728,7 @@ function getStyles(config: ResolvedConfig): string {
   transition: background 0.15s;
 }
 .csk-source-item:last-child { border-bottom: none; }
-.csk-source-item:hover { background: #fff; }
+.csk-source-item:hover { background: var(--csk-bg-ai); }
 .csk-source-item__name {
   font-weight: 500;
   color: #1F2937;
@@ -990,23 +1008,21 @@ function getStyles(config: ResolvedConfig): string {
   max-width: 320px;
 }
 .csk-quick-reply {
-  border: 1px solid var(--csk-border);
-  background: #fff;
-  color: #374151;
-  font-size: 12.5px;
-  padding: 7px 13px;
-  border-radius: 999px;
+  border: 1px solid transparent;
+  background: var(--csk-bg-ai);
+  color: var(--csk-text-secondary);
+  font-size: 12px;
+  padding: 6px 12px;
+  border-radius: 6px;
   cursor: pointer;
   font-family: inherit;
   line-height: 1.3;
-  transition: all 0.18s ease;
+  transition: all 0.15s ease;
   max-width: 100%;
 }
 .csk-quick-reply:hover {
-  border-color: var(--csk-primary);
-  color: var(--csk-primary);
-  background: rgba(var(--csk-primary-rgb), 0.06);
-  transform: translateY(-1px);
+  background: var(--csk-border);
+  color: var(--csk-text-ai);
 }
 .csk-quick-reply:active { transform: scale(0.96); }
 
@@ -1021,32 +1037,34 @@ function getStyles(config: ResolvedConfig): string {
   gap: 4px;
 }
 .csk-suggestion-item {
-  border: 1px solid var(--csk-border);
-  background: #fff;
-  color: #374151;
+  border: 1px solid transparent;
+  background: var(--csk-bg-ai);
+  color: var(--csk-text-secondary);
   font-size: 12px;
   padding: 4px 10px;
-  border-radius: 999px;
+  border-radius: 6px;
   cursor: pointer;
   font-family: inherit;
   line-height: 1.3;
-  transition: all 0.18s ease;
+  transition: all 0.15s ease;
   max-width: 100%;
   text-align: left;
 }
 .csk-suggestion-item:hover {
-  border-color: var(--csk-primary);
-  color: var(--csk-primary);
-  background: rgba(var(--csk-primary-rgb), 0.06);
-  transform: translateY(-1px);
+  background: var(--csk-border);
+  color: var(--csk-text-ai);
 }
 .csk-suggestion-item:active { transform: scale(0.96); }
 
-/* ========== AI 消息操作条 ========== */
+/* ========== AI 消息操作条（TDesign 操作条：浅灰胶囊容器） ========== */
 .csk-msg__actions {
   display: flex;
-  gap: 2px;
-  padding: 0 2px;
+  gap: 0;
+  padding: 3px;
+  background: var(--csk-bg-ai);
+  border: 1px solid var(--csk-border-strong);
+  border-radius: 6px;
+  overflow: hidden;
   opacity: 0;
   transition: opacity 0.15s ease;
 }
@@ -1056,18 +1074,18 @@ function getStyles(config: ResolvedConfig): string {
   display: flex;
   align-items: center;
   justify-content: center;
-  width: 26px;
-  height: 26px;
+  width: 24px;
+  height: 24px;
   border: none;
   background: transparent;
-  color: #9CA3AF;
-  border-radius: 6px;
+  color: var(--csk-text-secondary);
+  border-radius: 4px;
   cursor: pointer;
-  transition: all 0.15s ease;
+  transition: background 0.15s ease, color 0.15s ease;
 }
 .csk-action-btn:hover {
-  background: #F3F4F6;
-  color: #374151;
+  background: var(--csk-border);
+  color: var(--csk-text-ai);
 }
 .csk-action-btn--done { color: #10B981; }
 .csk-action-btn:active { transform: scale(0.9); }
@@ -1239,6 +1257,9 @@ function getStyles(config: ResolvedConfig): string {
   --csk-bg-ai: #1E1E2E;
   --csk-text-ai: #E2E8F0;
   --csk-border: #3B3B52;
+  --csk-border-strong: #454560;
+  --csk-text-secondary: rgba(255, 255, 255, 0.6);
+  --csk-text-muted: rgba(255, 255, 255, 0.4);
   --csk-bg-app: #141421;
   color: #E2E8F0;
 }
@@ -1256,12 +1277,13 @@ function getStyles(config: ResolvedConfig): string {
   border-color: var(--csk-border);
 }
 .csk-dark .csk-input-area { background: #1A1A2E; border-top-color: var(--csk-border); }
-.csk-dark .csk-input-wrap { background: var(--csk-bg-app); border-color: var(--csk-border); }
+.csk-dark .csk-input-wrap { background: var(--csk-bg-app); border-color: var(--csk-border-strong); }
+.csk-dark .csk-input-wrap:hover { border-color: var(--csk-primary); box-shadow: none; }
 .csk-dark .csk-input-wrap--focus { background: #1A1A2E; border-color: var(--csk-primary); }
 .csk-dark .csk-input { color: #E2E8F0; }
 .csk-dark .csk-loading__avatar { background: var(--csk-bg-ai); border-color: var(--csk-border); }
 .csk-dark .csk-loading__bubble { background: var(--csk-bg-ai); border-color: var(--csk-border); }
-.csk-dark .csk-loading__dot { background: #6B7280; }
+.csk-dark .csk-loading__dot { background: var(--csk-primary-light); }
 .csk-dark .csk-category-bar { background: #1A1A2E; border-top-color: var(--csk-border); }
 .csk-dark .csk-category-select { background-color: var(--csk-bg-app); border-color: var(--csk-border); color: #E2E8F0; }
 .csk-dark .csk-sources { background: #1E1E2E; border-color: var(--csk-border); }
@@ -1279,6 +1301,7 @@ function getStyles(config: ResolvedConfig): string {
 .csk-dark .csk-history-item__meta { color: #6B7280; }
 .csk-dark .csk-history-item--active { background: rgba(var(--csk-primary-rgb), 0.15); }
 .csk-dark .csk-history-item--active:hover { background: rgba(var(--csk-primary-rgb), 0.22); }
+.csk-dark .csk-msg__actions { background: var(--csk-bg-ai); border-color: var(--csk-border-strong); }
 .csk-dark .csk-action-btn:hover { background: #2D2D48; color: #E2E8F0; }
 .csk-dark .csk-clear-btn { background: var(--csk-bg-app); border-color: var(--csk-border); color: #9CA3AF; }
 .csk-dark .csk-clear-btn:hover { background: #3B1A1A; border-color: #7F1D1D; color: #FCA5A5; }
@@ -1299,9 +1322,9 @@ function getStyles(config: ResolvedConfig): string {
 .csk-dark .csk-teaser::after { border-top-color: #2D2D48; }
 .csk-dark .csk-teaser__close { color: #6B7280; }
 .csk-dark .csk-teaser__close:hover { color: #9CA3AF; }
-.csk-dark .csk-feedback-btn { background: rgba(var(--csk-primary-rgb), 0.1); color: #9CA3AF; }
-.csk-dark .csk-feedback-btn:hover { background: rgba(var(--csk-primary-rgb), 0.2); color: var(--csk-primary-light); }
-.csk-dark .csk-feedback-btn--active { background: rgba(var(--csk-primary-rgb), 0.28); color: var(--csk-primary-light); }
+.csk-dark .csk-feedback-btn { background: transparent; color: var(--csk-text-secondary); }
+.csk-dark .csk-feedback-btn:hover { background: #2D2D48; color: #E2E8F0; }
+.csk-dark .csk-feedback-btn--active { background: transparent; color: var(--csk-primary-light); }
 .csk-dark .csk-history-panel__search-wrap { background: var(--csk-bg-app); border-color: var(--csk-border); }
 .csk-dark .csk-history-panel__search-wrap:focus-within { border-color: var(--csk-primary); }
 .csk-dark .csk-history-panel__search { color: #E2E8F0; }
@@ -1407,22 +1430,22 @@ function getStyles(config: ResolvedConfig): string {
   display: flex;
   align-items: center;
   justify-content: center;
-  width: 26px;
-  height: 26px;
+  width: 24px;
+  height: 24px;
   border: none;
-  background: rgba(var(--csk-primary-rgb), 0.08);
-  color: #9CA3AF;
-  border-radius: 6px;
+  background: transparent;
+  color: var(--csk-text-secondary);
+  border-radius: 4px;
   cursor: pointer;
-  transition: all 0.15s ease;
+  transition: background 0.15s ease, color 0.15s ease;
   padding: 0;
 }
-.csk-feedback-btn:hover { background: rgba(var(--csk-primary-rgb), 0.18); color: var(--csk-primary); }
+.csk-feedback-btn:hover { background: var(--csk-border); color: var(--csk-text-ai); }
 .csk-feedback-btn--active {
-  background: rgba(var(--csk-primary-rgb), 0.28);
+  background: transparent;
   color: var(--csk-primary);
 }
-.csk-feedback-btn--active.down { background: #FEF2F2; color: #EF4444; }
+.csk-feedback-btn--active.down { color: #D54941; }
 .csk-feedback-btn:active { transform: scale(0.9); }
 .csk-msg--streaming .csk-feedback-btn { display: none; }