From 5eac6480cf6959d2227f744e2e00d8961ce75813 Mon Sep 17 00:00:00 2001
From: lhl <liuhaili1203@126.com>
Date: Sun, 30 Aug 2026 22:51:40 +0800
Subject: [PATCH] =?UTF-8?q?feat(frontend):=20=E8=A7=86=E8=A7=89=E9=87=8D?=
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- 颜色令牌替换 Material 蓝 → 深空灰底 (#0B0F17) + 唯一青绿强调色 (#5EEAD4)
- 字体策略：Google Fonts → 系统字体栈（-apple-system, PingFang SC, Microsoft YaHei 等）
- 六大区域样式全部按 spec §二 重写：侧边栏 / 顶栏 / 聊天 / 上传 / 输入 / 抽屉
- 气泡去掉阴影改细边；用户消息左侧 2px accent 竖条；助手消息顶头 6px accent 圆点
- 顶栏 backdrop-filter: blur(12px) 毛玻璃；抽屉 backdrop-filter: blur(8px) 遮罩
- 字号阶梯 11/12/13/14/15/17；圆角阶梯 6/10/14

spec: docs/superpowers/specs/2026-08-30-frontend-beautify-design.md
plan: docs/superpowers/plans/2026-08-30-frontend-beautify.md
---
 src/genesis/server/static/chat.css | 493 ++++++++++++++++++++---------
 1 file changed, 350 insertions(+), 143 deletions(-)

diff --git a/src/genesis/server/static/chat.css b/src/genesis/server/static/chat.css
index ebcf84d..20719e5 100644
--- a/src/genesis/server/static/chat.css
+++ b/src/genesis/server/static/chat.css
@@ -1,205 +1,412 @@
 /* src/genesis/server/static/chat.css
-   v0 拆分骨架 - 视觉与原 chat.html 内联样式完全一致
-   v1 视觉重塑见 docs/superpowers/plans/2026-08-30-frontend-beautify.md Task 2
+   v1 深色重塑 - 深色指挥中心 + 文档工作台混合风格
+   spec: docs/superpowers/specs/2026-08-30-frontend-beautify-design.md §一 / §二
+   plan: docs/superpowers/plans/2026-08-30-frontend-beautify.md Task 2
 */
 :root {
-  --blue: #1a73e8;
-  --blue-dark: #1967d2;
-  --blue-soft: #d2e3fc;
-  --red: #ea4335;
-  --red-soft: #fce8e6;
-  --yellow: #fbbc05;
-  --green: #34a853;
-  --gray-50: #f8f9fa;
-  --gray-100: #f1f3f4;
-  --gray-200: #e8eaed;
-  --gray-300: #dadce0;
-  --gray-500: #5f6368;
-  --gray-700: #3c4043;
-  --gray-900: #202124;
-  --blue-50: #e8f0fe;
-  --blue-100: #d2e3fc;
-  --radius-lg: 12px;
-  --radius-xl: 16px;
-  --shadow-1: 0 1px 2px rgba(60,64,67,.30), 0 1px 3px 1px rgba(60,64,67,.15);
-  --shadow-2: 0 1px 2px rgba(60,64,67,.30), 0 2px 6px 2px rgba(60,64,67,.15);
-  --shadow-3: 0 1px 3px rgba(60,64,67,.30), 0 4px 8px 3px rgba(60,64,67,.15);
-  --glow-blue: 0 0 0 1px rgba(26,115,232,.12), 0 8px 24px rgba(26,115,232,.18);
-  --ease: all .2s cubic-bezier(.2,0,0,1);
-  --font-ui: 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
+  /* === 颜色 (spec §一) === */
+  --bg-base: #0B0F17;
+  --bg-surface: #141A24;
+  --bg-elevated: #1B2330;
+  --bg-input: #0F141C;
+  --border-subtle: rgba(255, 255, 255, 0.08);
+  --border-strong: rgba(255, 255, 255, 0.14);
+  --text-primary: #E5EAF0;
+  --text-secondary: #8B95A7;
+  --text-muted: #5C6677;
+  --accent: #5EEAD4;
+  --accent-soft: rgba(94, 234, 212, 0.15);
+  --success: #34D399;
+  --warning: #FBBF24;
+  --danger: #F87171;
+  --info: #60A5FA;
+
+  /* === 字体 (系统字体栈，spec §一 Q2 决策) === */
+  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
+             "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
+  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
+               "Liberation Mono", monospace;
+
+  /* === 间距 (spec §一) === */
+  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px;
+  --sp-4: 16px; --sp-5: 20px; --sp-6: 24px;
+
+  /* === 圆角 (spec §一) === */
+  --r-sm: 6px;  --r-md: 10px; --r-lg: 14px;
+
+  /* === 动效 (spec §一) === */
+  --ease: cubic-bezier(.2, 0, 0, 1);
+  --dur: .18s;
 }
+
+/* === 全局 === */
 * { box-sizing: border-box; }
 html, body { height: 100%; }
 body {
   font-family: var(--font-ui);
   margin: 0; height: 100vh; display: flex; flex-direction: row;
-  background: var(--gray-50); color: var(--gray-900);
+  background: var(--bg-base); color: var(--text-primary);
   -webkit-font-smoothing: antialiased;
+  font-size: 14px;
 }
 ::-webkit-scrollbar { width: 8px; height: 8px; }
-::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 8px; }
-::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }
+::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; }
+::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
 ::-webkit-scrollbar-track { background: transparent; }
 
-/* Sidebar */
-#sidebar { width: 264px; background: #fff; color: var(--gray-900); display: flex; flex-direction: column; flex-shrink: 0; border-right: 1px solid var(--gray-200); transition: width .25s ease; position: relative; }
+/* === 侧边栏 (spec §2.1) === */
+#sidebar {
+  width: 264px; background: var(--bg-surface); color: var(--text-primary);
+  display: flex; flex-direction: column; flex-shrink: 0;
+  border-right: 1px solid var(--border-subtle);
+  transition: width .25s var(--ease);
+  position: relative;
+}
 #sidebar.collapsed { width: 56px; }
 #sidebar.collapsed #sidebar-toggle { top: auto; bottom: 14px; right: auto; left: 14px; }
 #sidebar.collapsed #session-list { padding-bottom: 52px; }
-.brand { display: flex; align-items: center; gap: 12px; padding: 16px 12px 12px 16px; margin: 0 8px 8px; border-bottom: 1px solid var(--gray-100); min-height: 64px; }
+.brand {
+  display: flex; align-items: center; gap: 12px;
+  padding: 16px 12px 12px 16px; margin: 0 8px 8px;
+  border-bottom: 1px solid var(--border-subtle);
+  min-height: 64px;
+}
 #sidebar.collapsed .brand { padding: 16px 8px; justify-content: center; gap: 0; }
-.brand-logo { width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 17px; font-weight: 900; background: linear-gradient(135deg, #1a73e8, #4285f4); box-shadow: var(--glow-blue); transition: var(--ease); }
-.brand:hover .brand-logo { transform: scale(1.1); }
-.brand-name { font-size: 17px; font-weight: 900; letter-spacing: -.02em; line-height: 1.1; }
+.brand-logo {
+  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
+  display: flex; align-items: center; justify-content: center;
+  color: var(--bg-base); font-size: 17px; font-weight: 900;
+  background: var(--accent);
+  transition: transform var(--dur) var(--ease);
+}
+.brand:hover .brand-logo { transform: scale(1.1); box-shadow: 0 0 24px var(--accent-soft); }
+.brand-name { font-size: 17px; font-weight: 700; letter-spacing: -.02em; line-height: 1.1; color: var(--text-primary); }
+.brand-sub { display: block; font-size: 11px; font-weight: 500; color: var(--text-muted); margin-top: 2px; letter-spacing: 0; }
 #sidebar.collapsed .brand-name { display: none; }
-.brand-sub { display: block; font-size: 11px; font-weight: 600; color: var(--gray-500); margin-top: 2px; letter-spacing: 0; }
-#sidebar-toggle { position: absolute; top: 18px; right: -14px; z-index: 5; width: 28px; height: 28px; border-radius: 50%; background: #fff; border: 1px solid var(--gray-200); box-shadow: var(--shadow-1); color: var(--gray-700); cursor: pointer; font-size: 14px; line-height: 1; display: flex; align-items: center; justify-content: center; transition: var(--ease); }
-#sidebar-toggle:hover { color: var(--blue); border-color: var(--blue-100); }
-#sidebar.collapsed #sidebar-toggle { transform: rotate(180deg); }
-#new-chat { margin: 6px 16px 10px; background: var(--blue); color: #fff; border: none; padding: 10px 14px; border-radius: var(--radius-lg); cursor: pointer; font-size: 14px; font-weight: 600; letter-spacing: .01em; box-shadow: 0 1px 2px rgba(26,115,232,.4); transition: var(--ease); display: flex; align-items: center; justify-content: center; gap: 6px; }
-#new-chat:hover { background: var(--blue-dark); box-shadow: 0 2px 6px rgba(26,115,232,.45); transform: translateY(-1px); }
+#sidebar-toggle {
+  position: absolute; top: 18px; right: -14px; z-index: 5;
+  width: 28px; height: 28px; border-radius: 50%;
+  background: var(--bg-elevated); border: 1px solid var(--border-strong);
+  color: var(--text-secondary); cursor: pointer; font-size: 14px; line-height: 1;
+  display: flex; align-items: center; justify-content: center;
+  transition: all var(--dur) var(--ease);
+}
+#sidebar-toggle:hover { color: var(--accent); border-color: var(--accent); }
+#new-chat {
+  margin: var(--sp-2) var(--sp-4) var(--sp-3); background: var(--accent); color: var(--bg-base);
+  border: none; padding: 10px 14px; border-radius: var(--r-md);
+  cursor: pointer; font-size: 14px; font-weight: 700; letter-spacing: .01em;
+  transition: all var(--dur) var(--ease);
+  display: flex; align-items: center; justify-content: center; gap: 6px;
+}
+#new-chat:hover { box-shadow: 0 0 24px var(--accent-soft); transform: translateY(-1px); }
 #new-chat:active { transform: translateY(0); }
-#sidebar.collapsed #new-chat { margin: 6px 10px 10px; padding: 10px 0; }
+#sidebar.collapsed #new-chat { margin: var(--sp-2) 10px var(--sp-3); padding: 10px 0; }
 #new-chat .ic-plus { display: inline-block; font-weight: 900; }
 #sidebar.collapsed #new-chat .nc-text { display: none; }
-#sidebar h2 { font-size: 9px; font-weight: 900; letter-spacing: .2em; text-transform: uppercase; color: var(--gray-500); margin: 10px 16px 6px; }
+#sidebar h2 {
+  font-family: var(--font-mono);
+  font-size: 11px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
+  color: var(--text-muted); margin: var(--sp-3) var(--sp-4) var(--sp-2);
+}
 #sidebar.collapsed h2 { display: none; }
 #session-list { flex: 1; overflow-y: auto; padding: 0 8px 8px; }
-.sess { padding: 9px 12px; border-radius: var(--radius-lg); margin: 2px 0; cursor: pointer; position: relative; border: 1px solid transparent; transition: var(--ease); display: flex; align-items: center; gap: 6px; }
-.sess:hover { background: var(--gray-50); }
-.sess.active { background: var(--blue-50); border-color: var(--blue-100); }
-.sess.active::before { content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 3px; border-radius: 0 3px 3px 0; background: var(--blue); }
+.sess {
+  padding: 9px 12px; border-radius: var(--r-md); margin: 2px 0;
+  cursor: pointer; position: relative; border: 1px solid transparent;
+  transition: all var(--dur) var(--ease);
+  display: flex; align-items: center; gap: 6px;
+}
+.sess:hover { background: var(--bg-elevated); }
+.sess:hover::before {
+  content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px;
+  background: var(--accent); border-radius: 0 2px 2px 0;
+}
+.sess.active { background: var(--bg-elevated); }
+.sess.active::before {
+  content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px;
+  background: var(--accent); border-radius: 0 2px 2px 0;
+}
 .sess .info { flex: 1; min-width: 0; overflow: hidden; }
-.sess .name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.sess .name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-primary); }
 .sess.active .name { font-weight: 700; }
-.sess .meta { font-size: 11px; color: var(--gray-500); margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
-.sess .del { flex-shrink: 0; opacity: 0; transition: opacity .15s ease; background: transparent; border: none; color: var(--gray-500); cursor: pointer; width: 24px; height: 24px; border-radius: 6px; font-size: 16px; line-height: 1; display: flex; align-items: center; justify-content: center; }
+.sess .meta { font-size: 11px; color: var(--text-muted); margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-family: var(--font-mono); }
+.sess .del {
+  flex-shrink: 0; opacity: 0; transition: opacity .15s ease;
+  background: transparent; border: none; color: var(--text-muted); cursor: pointer;
+  width: 24px; height: 24px; border-radius: 6px; font-size: 16px; line-height: 1;
+  display: flex; align-items: center; justify-content: center;
+}
 .sess:hover .del { opacity: .7; }
-.sess .del:hover { opacity: 1 !important; background: var(--red-soft); color: var(--red); }
+.sess .del:hover { opacity: 1 !important; background: var(--danger); color: var(--bg-base); }
 #sidebar.collapsed .sess { justify-content: center; padding: 9px 6px; }
 #sidebar.collapsed .sess .info, #sidebar.collapsed .sess .del { display: none; }
-#sidebar.collapsed .sess .avatar { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: var(--gray-100); color: var(--gray-700); font-size: 12px; font-weight: 700; }
+#sidebar.collapsed .sess .avatar {
+  display: flex; align-items: center; justify-content: center;
+  width: 8px; height: 8px; border-radius: 50%;
+  background: var(--text-muted);
+}
 .sess .avatar { display: none; }
 #sidebar.collapsed .sess .avatar { display: flex; }
-#sidebar.collapsed .sess.active .avatar { background: var(--blue); color: #fff; }
+#sidebar.collapsed .sess.active .avatar { background: var(--accent); box-shadow: 0 0 8px var(--accent-soft); }
 
-/* Main */
-#main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--gray-50); }
-header { height: 56px; position: sticky; top: 0; z-index: 10; padding: 0 24px; display: flex; align-items: center; gap: 14px; background: rgba(255,255,255,.78); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-200); }
-header h1 { font-size: 16px; font-weight: 900; letter-spacing: -.02em; margin: 0; color: var(--gray-900); }
+/* === 主区 + 顶栏 (spec §2.2) === */
+#main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg-base); }
+header {
+  height: 56px; position: sticky; top: 0; z-index: 10;
+  padding: 0 var(--sp-6); display: flex; align-items: center; gap: 14px;
+  background: rgba(20, 26, 36, 0.78); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
+  border-bottom: 1px solid var(--border-subtle);
+}
+header h1 { font-size: 16px; font-weight: 700; letter-spacing: -.02em; margin: 0; color: var(--text-primary); }
 .proj-switcher { position: relative; }
-.ps-current { display: flex; align-items: center; gap: 8px; background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 7px 12px; cursor: pointer; font-size: 13px; font-weight: 600; color: var(--gray-700); transition: var(--ease); }
-.ps-current:hover { background: #fff; border-color: var(--blue-100); color: var(--blue-dark); }
-.ps-current .ps-label { font-size: 11px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; color: var(--gray-500); }
+.ps-current {
+  display: flex; align-items: center; gap: 8px;
+  background: transparent; border: 1px solid var(--border-strong);
+  border-radius: var(--r-md); padding: 7px 12px; cursor: pointer;
+  font-size: 13px; font-weight: 500; color: var(--text-primary);
+  transition: all var(--dur) var(--ease);
+}
+.ps-current:hover { border-color: var(--accent); }
+.ps-current .ps-label { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); }
 .ps-current .ps-name { max-width: 160px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
-.ps-current .ps-caret { font-size: 10px; color: var(--gray-500); }
-.ps-menu { position: absolute; top: calc(100% + 6px); left: 0; min-width: 240px; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); box-shadow: var(--shadow-3); padding: 6px; z-index: 20; display: none; }
-.ps-menu.open { display: block; animation: zoomIn .2s ease; }
-.ps-item { padding: 8px 12px; border-radius: 8px; cursor: pointer; font-size: 13px; color: var(--gray-700); display: flex; align-items: center; gap: 8px; transition: background .15s ease; }
-.ps-item:hover { background: var(--blue-50); color: var(--blue-dark); }
-.ps-item.active { background: var(--blue-50); color: var(--blue-dark); font-weight: 700; }
-.ps-item .ps-check { margin-left: auto; color: var(--blue); font-weight: 900; opacity: 0; }
+.ps-current .ps-caret { font-size: 10px; color: var(--text-muted); }
+.ps-menu {
+  position: absolute; top: calc(100% + 6px); left: 0; min-width: 240px;
+  background: var(--bg-surface); border: 1px solid var(--border-strong); border-radius: var(--r-md);
+  box-shadow: 0 8px 32px rgba(0,0,0,.4); padding: 6px; z-index: 20;
+  display: none;
+}
+.ps-menu.open { display: block; animation: zoomIn .2s var(--ease); }
+.ps-item {
+  padding: 8px 12px; border-radius: var(--r-sm); cursor: pointer; font-size: 13px; color: var(--text-secondary);
+  display: flex; align-items: center; gap: 8px; transition: background .15s var(--ease);
+}
+.ps-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
+.ps-item.active { background: var(--bg-elevated); color: var(--accent); font-weight: 700; }
+.ps-item .ps-check { margin-left: auto; color: var(--accent); font-weight: 900; opacity: 0; }
 .ps-item.active .ps-check { opacity: 1; }
-.ps-sep { height: 1px; background: var(--gray-100); margin: 4px 6px; }
-.ps-manage { color: var(--blue); font-weight: 600; }
-#sid-badge { margin-left: auto; background: var(--blue-50); color: var(--blue-dark); border: 1px solid var(--blue-100); border-radius: 999px; padding: 4px 14px; font-size: 12px; font-weight: 600; max-width: 46%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+.ps-sep { height: 1px; background: var(--border-subtle); margin: 4px 6px; }
+.ps-manage { color: var(--accent); font-weight: 600; }
+#sid-badge {
+  margin-left: auto;
+  background: var(--bg-elevated); color: var(--text-primary);
+  border: 1px solid var(--border-subtle);
+  border-radius: 999px; padding: 4px 14px; font-size: 12px; font-weight: 500;
+  max-width: 32%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
+  font-family: var(--font-mono);
+}
 
-/* RAG */
-#rag-bar { display: flex; align-items: center; gap: 8px; background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 999px; padding: 3px 10px; font-size: 12px; color: var(--gray-700); }
-#rag-bar label.rag-switch { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; user-select: none; }
-#rag-bar input[type=checkbox] { width: 14px; height: 14px; accent-color: var(--blue); margin: 0; }
-#rag-bar input[type=checkbox]:disabled + span { color: var(--gray-500); cursor: not-allowed; }
-#rag-bar .rag-stats { font-variant-numeric: tabular-nums; color: var(--gray-500); }
-#rag-bar .rag-stats.ready { color: var(--blue-dark); font-weight: 600; }
-#rag-bar .rag-stats.zero { color: var(--gray-500); }
-#rag-bar button { background: var(--blue); color: #fff; border: none; border-radius: 999px; padding: 4px 12px; font-size: 12px; font-weight: 700; cursor: pointer; }
-#rag-bar button:disabled { background: var(--gray-200); color: var(--gray-500); cursor: not-allowed; }
-#rag-bar button:hover:not(:disabled) { background: var(--blue-dark); }
+/* === RAG 控制条 (spec §2.2) === */
+#rag-bar {
+  display: flex; align-items: center; gap: 8px;
+  background: transparent; border: 1px solid var(--border-subtle);
+  border-radius: 999px; padding: 3px 10px;
+  font-size: 12px; color: var(--text-secondary);
+  font-family: var(--font-mono);
+}
+#rag-bar label.rag-switch {
+  display: inline-flex; align-items: center; gap: 6px;
+  cursor: pointer; user-select: none;
+}
+#rag-bar input[type=checkbox] {
+  width: 14px; height: 14px; accent-color: var(--accent);
+  margin: 0;
+}
+#rag-bar input[type=checkbox]:disabled + span { color: var(--text-muted); cursor: not-allowed; }
+#rag-bar .rag-stats { color: var(--text-muted); }
+#rag-bar .rag-stats.ready { color: var(--accent); font-weight: 600; }
+#rag-bar .rag-stats.zero { color: var(--text-muted); }
+#rag-bar button {
+  background: var(--accent); color: var(--bg-base); border: none;
+  border-radius: 999px; padding: 4px 12px; font-size: 12px; font-weight: 700;
+  cursor: pointer; transition: all var(--dur) var(--ease);
+}
+#rag-bar button:disabled { background: var(--bg-elevated); color: var(--text-muted); cursor: not-allowed; }
+#rag-bar button:hover:not(:disabled) { box-shadow: 0 0 16px var(--accent-soft); }
 
-/* Chat */
-#chat { flex: 1; overflow-y: auto; padding: 24px 24px 32px; max-width: 880px; width: 100%; margin: 0 auto; }
-.msg { display: flex; margin: 12px 0; animation: zoomIn .25s ease; }
-.msg .bubble { max-width: 74%; padding: 11px 16px; border-radius: var(--radius-xl); white-space: pre-wrap; line-height: 1.6; font-size: 14px; letter-spacing: .01em; }
+/* === 聊天区 (spec §2.3) === */
+#chat { flex: 1; overflow-y: auto; padding: var(--sp-6) var(--sp-6) var(--sp-6); max-width: 880px; width: 100%; margin: 0 auto; }
+.msg { display: flex; margin: var(--sp-3) 0; animation: zoomIn .25s var(--ease); position: relative; }
+.msg .bubble {
+  max-width: 74%; padding: 11px 16px; border-radius: var(--r-lg);
+  white-space: pre-wrap; line-height: 1.65; font-size: 14px; letter-spacing: .01em;
+}
 .msg.user { justify-content: flex-end; }
-.msg.user .bubble { background: linear-gradient(135deg, #1a73e8, #4285f4); color: #fff; border-bottom-right-radius: 6px; box-shadow: var(--shadow-2); }
+.msg.user .bubble {
+  background: var(--bg-surface);
+  color: var(--text-primary);
+  border-bottom-right-radius: 6px;
+  border-left: 2px solid var(--accent);
+  padding-left: 18px; /* 抵消左边框占用的空间，避免文字偏移 */
+}
 .msg.assistant { align-items: flex-start; }
-.msg.assistant .bubble { background: #fff; border: 1px solid var(--gray-200); border-bottom-left-radius: 6px; box-shadow: var(--shadow-1); }
-.msg.assistant::before { content: ""; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; margin: 16px 8px 0 0; background: var(--blue); box-shadow: 0 0 0 0 rgba(26,115,232,.4); animation: auraPulse 2.2s ease-in-out infinite; }
-.msg.progress .bubble { background: var(--blue-50); border: 1px dashed var(--blue-soft); font-size: 13px; color: var(--gray-700); }
-.msg.error .bubble { background: var(--red-soft); border: 1px solid #f5c6c0; color: #b31412; }
+.msg.assistant .bubble {
+  background: var(--bg-surface);
+  border: 1px solid var(--border-subtle);
+  border-bottom-left-radius: 6px;
+  color: var(--text-primary);
+}
+.msg.assistant::before {
+  content: ""; width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
+  margin: 18px 10px 0 0; background: var(--accent);
+  box-shadow: 0 0 8px var(--accent-soft);
+}
+.msg.progress .bubble {
+  background: var(--bg-input); border: 1px dashed var(--accent-soft);
+  font-size: 13px; color: var(--text-secondary);
+  font-family: var(--font-mono);
+}
+.msg.error .bubble {
+  background: rgba(248, 113, 113, 0.12); border: 1px solid var(--danger); color: var(--danger);
+}
 .progress-item { display: block; }
-.progress-item.ok::before { content: "✔ "; color: var(--green); font-weight: 700; }
-.progress-item.warn::before { content: "⚠ "; color: #b06000; font-weight: 700; }
+.progress-item.ok::before { content: "✔ "; color: var(--success); font-weight: 700; }
+.progress-item.warn::before { content: "⚠ "; color: var(--warning); font-weight: 700; }
 .actions { margin-top: 8px; }
-.actions a { display: inline-block; margin: 4px 6px 0 0; background: var(--blue); color: #fff; padding: 6px 14px; border-radius: 999px; text-decoration: none; font-size: 13px; font-weight: 600; box-shadow: 0 1px 2px rgba(26,115,232,.4); transition: var(--ease); }
-.actions a:hover { background: var(--blue-dark); transform: translateY(-1px); }
-.typing { color: var(--gray-500); font-size: 13px; font-style: italic; animation: auraPulse 1.4s ease-in-out infinite; }
+.actions a {
+  display: inline-block; margin: 4px 6px 0 0; background: var(--accent); color: var(--bg-base);
+  padding: 6px 14px; border-radius: 999px; text-decoration: none; font-size: 13px; font-weight: 700;
+  transition: all var(--dur) var(--ease);
+}
+.actions a:hover { box-shadow: 0 0 16px var(--accent-soft); transform: translateY(-1px); }
+.typing { color: var(--text-muted); font-size: 13px; animation: auraPulse 1.4s ease-in-out infinite; font-family: var(--font-mono); }
 
-/* Upload */
-#upload-bar { background: #fff; border-top: 1px solid var(--gray-200); padding: 10px 24px; font-size: 13px; }
+/* === 上传条 (spec §2.4) === */
+#upload-bar { background: var(--bg-surface); border-top: 1px solid var(--border-subtle); padding: var(--sp-3) var(--sp-6); font-size: 13px; }
 #upload-bar-inner { max-width: 880px; margin: 0 auto; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
-#upload-bar select { font-size: 13px; padding: 8px 12px; border: 1px solid var(--gray-300); border-radius: var(--radius-lg); background: #fff; color: var(--gray-900); cursor: pointer; outline: none; transition: var(--ease); }
-#upload-bar select:focus { border-color: var(--blue); box-shadow: 0 0 0 2px var(--blue-50); }
-.file-pick { display: inline-block; padding: 8px 14px; border: 1px solid var(--gray-300); border-radius: var(--radius-lg); background: var(--gray-50); color: var(--gray-700); font-size: 13px; font-weight: 600; cursor: pointer; transition: var(--ease); }
-.file-pick:hover { background: var(--blue-50); color: var(--blue-dark); border-color: var(--blue-100); }
-#upload-btn { background: var(--gray-100); border: 1px solid var(--gray-200); color: var(--gray-700); border-radius: var(--radius-lg); padding: 8px 16px; cursor: pointer; font-size: 13px; font-weight: 600; transition: var(--ease); }
-#upload-btn:hover { background: var(--blue); border-color: var(--blue); color: #fff; }
-#upload-status { color: var(--gray-500); font-size: 12px; }
-#proj-hint { color: #b06000; font-size: 12px; background: #fef7e0; border: 1px solid #fde293; border-radius: 8px; padding: 4px 10px; }
+#upload-bar select {
+  font-size: 13px; padding: 8px 12px; border: 1px solid var(--border-strong); border-radius: var(--r-md);
+  background: var(--bg-input); color: var(--text-primary); cursor: pointer; outline: none;
+  transition: all var(--dur) var(--ease);
+  font-family: var(--font-ui);
+}
+#upload-bar select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
+.file-pick {
+  display: inline-block; padding: 8px 14px; border: 1px solid var(--border-strong); border-radius: var(--r-md);
+  background: var(--bg-input); color: var(--text-secondary); font-size: 13px; font-weight: 500;
+  cursor: pointer; transition: all var(--dur) var(--ease);
+}
+.file-pick:hover { border-color: var(--accent); color: var(--accent); }
+#upload-btn {
+  background: transparent; border: 1px solid var(--border-strong); color: var(--text-primary);
+  border-radius: var(--r-md); padding: 8px 16px; cursor: pointer; font-size: 13px; font-weight: 600;
+  transition: all var(--dur) var(--ease);
+}
+#upload-btn:hover { background: var(--accent); border-color: var(--accent); color: var(--bg-base); }
+#upload-status { color: var(--text-muted); font-size: 12px; font-family: var(--font-mono); }
+#proj-hint {
+  color: var(--warning); font-size: 12px; background: rgba(251,191,36,.1); border: 1px solid var(--warning);
+  border-left-width: 4px; border-radius: var(--r-sm); padding: 4px 10px;
+}
 label.vh { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
 
-/* Composer */
-#composer { border-top: 1px solid var(--gray-200); background: #fff; padding: 14px 24px 18px; }
-#composer-inner { max-width: 880px; margin: 0 auto; display: flex; gap: 10px; align-items: center; }
-#input { flex: 1; border: 1px solid var(--gray-300); border-radius: 999px; padding: 11px 18px; font-size: 14px; outline: none; background: var(--gray-50); transition: var(--ease); color: var(--gray-900); }
-#input:focus { border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px var(--blue-50); }
-#input::placeholder { color: var(--gray-500); }
-#send { background: var(--blue); color: #fff; border: none; border-radius: 999px; padding: 11px 24px; cursor: pointer; font-size: 14px; font-weight: 700; box-shadow: 0 1px 2px rgba(26,115,232,.4); transition: var(--ease); }
-#send:hover:not(:disabled) { background: var(--blue-dark); box-shadow: var(--shadow-2); transform: translateY(-1px); }
+/* === 输入区 (spec §2.5) === */
+#composer { border-top: 1px solid var(--border-subtle); background: var(--bg-surface); padding: var(--sp-4) var(--sp-6) var(--sp-5); }
+#composer-inner { max-width: 880px; margin: 0 auto; display: flex; gap: 10px; align-items: flex-end; }
+#input {
+  flex: 1; border: 1px solid var(--border-strong); border-radius: var(--r-md);
+  padding: 11px 14px; font-size: 14px; outline: none; background: var(--bg-input);
+  transition: all var(--dur) var(--ease); color: var(--text-primary);
+  font-family: var(--font-ui);
+  resize: none; min-height: 42px; max-height: 160px; line-height: 1.5;
+}
+#input:focus { border-color: var(--accent); background: var(--bg-elevated); box-shadow: 0 0 0 2px var(--accent-soft); }
+#input::placeholder { color: var(--text-muted); }
+#send {
+  background: var(--accent); color: var(--bg-base); border: none; border-radius: var(--r-md);
+  padding: 11px 24px; cursor: pointer; font-size: 14px; font-weight: 700;
+  transition: all var(--dur) var(--ease);
+  min-height: 42px;
+}
+#send:hover:not(:disabled) { box-shadow: 0 0 24px var(--accent-soft); transform: translateY(-1px); }
 #send:active:not(:disabled) { transform: translateY(0); }
-#send:disabled { opacity: .45; cursor: not-allowed; }
+#send:disabled { opacity: .3; cursor: not-allowed; }
 
-/* Drawer */
-#proj-drawer { position: fixed; top: 0; right: 0; height: 100vh; width: 460px; background: #fff; border-left: 1px solid var(--gray-200); box-shadow: -8px 0 32px rgba(60,64,67,.12); transform: translateX(100%); transition: transform .3s cubic-bezier(.2,0,0,1); z-index: 100; display: flex; flex-direction: column; }
+/* === 项目抽屉 (spec §2.6) === */
+#proj-drawer {
+  position: fixed; top: 0; right: 0; height: 100vh; width: 460px;
+  background: var(--bg-surface); border-left: 1px solid var(--border-subtle);
+  box-shadow: -8px 0 32px rgba(0,0,0,.5);
+  transform: translateX(100%); transition: transform .3s var(--ease);
+  z-index: 100; display: flex; flex-direction: column;
+}
 #proj-drawer.open { transform: translateX(0); }
-.drawer-head { height: 56px; padding: 0 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--gray-200); background: rgba(255,255,255,.95); backdrop-filter: blur(8px); flex-shrink: 0; }
-.drawer-head h2 { font-size: 15px; font-weight: 900; letter-spacing: -.01em; margin: 0; color: var(--gray-900); flex: 1; }
-.drawer-close { background: var(--gray-100); border: none; color: var(--gray-700); width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 18px; line-height: 1; display: flex; align-items: center; justify-content: center; transition: var(--ease); }
-.drawer-close:hover { background: var(--red-soft); color: var(--red); }
+.drawer-head {
+  height: 56px; padding: 0 20px; display: flex; align-items: center; gap: 12px;
+  border-bottom: 1px solid var(--border-subtle); background: var(--bg-surface);
+  flex-shrink: 0;
+}
+.drawer-head h2 { font-size: 15px; font-weight: 700; letter-spacing: -.01em; margin: 0; color: var(--text-primary); flex: 1; }
+.drawer-close {
+  background: transparent; border: 1px solid var(--border-subtle); color: var(--text-secondary);
+  width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
+  font-size: 18px; line-height: 1; display: flex; align-items: center; justify-content: center;
+  transition: all var(--dur) var(--ease);
+}
+.drawer-close:hover { background: var(--danger); border-color: var(--danger); color: var(--bg-base); }
 .drawer-body { flex: 1; display: flex; min-height: 0; }
-.drawer-list { width: 38%; border-right: 1px solid var(--gray-100); overflow-y: auto; padding: 10px 8px; background: var(--gray-50); display: flex; flex-direction: column; gap: 2px; }
-.drawer-item { padding: 10px 12px; border-radius: 10px; cursor: pointer; font-size: 13px; color: var(--gray-700); border: 1px solid transparent; transition: var(--ease); display: flex; align-items: center; gap: 8px; }
-.drawer-item:hover { background: #fff; border-color: var(--gray-200); }
-.drawer-item.active { background: #fff; border-color: var(--blue-100); color: var(--blue-dark); font-weight: 700; box-shadow: var(--shadow-1); }
+.drawer-list {
+  width: 38%; border-right: 1px solid var(--border-subtle); overflow-y: auto;
+  padding: 10px 8px; background: var(--bg-base);
+  display: flex; flex-direction: column; gap: 2px;
+}
+.drawer-item {
+  padding: 10px 12px; border-radius: var(--r-sm); cursor: pointer; font-size: 13px;
+  color: var(--text-secondary); border: 1px solid transparent;
+  transition: all var(--dur) var(--ease);
+  display: flex; align-items: center; gap: 8px; position: relative;
+}
+.drawer-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
+.drawer-item.active {
+  background: var(--bg-elevated); color: var(--text-primary); font-weight: 700;
+}
+.drawer-item.active::before {
+  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 2px;
+  background: var(--accent); border-radius: 0 2px 2px 0;
+}
 .drawer-item .di-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
-.drawer-item .di-new { color: var(--blue); }
-.drawer-item.di-create { border: 1px dashed var(--blue-100); background: var(--blue-50); color: var(--blue-dark); font-weight: 700; justify-content: center; gap: 4px; }
-.drawer-item.di-create:hover { background: var(--blue-100); border-color: var(--blue); }
-.drawer-form { flex: 1; overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 10px; }
-.drawer-form label { font-size: 11px; font-weight: 700; color: var(--gray-500); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 2px; display: block; }
-.drawer-form input { width: 100%; padding: 8px 11px; border: 1px solid var(--gray-200); border-radius: 8px; font-size: 13px; color: var(--gray-900); background: #fff; transition: var(--ease); }
-.drawer-form input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 2px var(--blue-50); }
-.drawer-form input:read-only { background: var(--gray-50); color: var(--gray-500); }
+.drawer-item .di-new { color: var(--accent); }
+.drawer-item.di-create {
+  border: 1px dashed var(--border-strong); background: transparent;
+  color: var(--accent); font-weight: 700; justify-content: center; gap: 4px;
+}
+.drawer-item.di-create:hover { background: var(--accent-soft); border-color: var(--accent); }
+.drawer-form { flex: 1; overflow-y: auto; padding: var(--sp-4) var(--sp-5); display: flex; flex-direction: column; gap: 10px; }
+.drawer-form label {
+  font-family: var(--font-mono);
+  font-size: 11px; font-weight: 500; color: var(--text-muted);
+  text-transform: uppercase; letter-spacing: .1em; margin-bottom: 2px; display: block;
+}
+.drawer-form input {
+  width: 100%; padding: 8px 11px; border: 1px solid var(--border-strong); border-radius: var(--r-sm);
+  font-size: 13px; color: var(--text-primary); background: var(--bg-input);
+  transition: all var(--dur) var(--ease);
+  font-family: var(--font-ui);
+}
+.drawer-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
+.drawer-form input:read-only { background: var(--bg-base); color: var(--text-muted); }
 .drawer-form .field { display: flex; flex-direction: column; }
 .drawer-form .drawer-hint { margin: 0 0 6px; }
-.drawer-form details.advanced { border: 1px solid var(--gray-200); border-radius: 8px; padding: 8px 12px; background: var(--gray-50); }
-.drawer-form details.advanced > summary { cursor: pointer; font-size: 12px; font-weight: 700; color: var(--gray-700); letter-spacing: .02em; }
+.drawer-form details.advanced { border: 1px solid var(--border-subtle); border-radius: var(--r-sm); padding: 8px 12px; }
+.drawer-form details.advanced > summary { cursor: pointer; font-size: 12px; font-weight: 600; color: var(--text-secondary); letter-spacing: .02em; }
 .drawer-form details.advanced[open] { padding-bottom: 10px; }
 .drawer-form details.advanced .field { margin-top: 8px; }
-.drawer-form input.invalid { border-color: var(--red) !important; box-shadow: 0 0 0 2px var(--red-soft) !important; }
+.drawer-form input.invalid { border-color: var(--danger) !important; box-shadow: 0 0 0 2px rgba(248,113,113,.25) !important; }
 .drawer-actions { display: flex; gap: 8px; margin-top: 8px; }
-.drawer-actions button { flex: 1; padding: 10px; border: none; border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 600; transition: var(--ease); }
-.btn-save { background: var(--blue); color: #fff; }
-.btn-save:hover { background: var(--blue-dark); }
-.btn-delete { background: var(--red-soft); color: var(--red); border: 1px solid #f5c6c0 !important; }
-.btn-delete:hover { background: var(--red); color: #fff; }
-.drawer-hint { font-size: 11px; color: var(--gray-500); line-height: 1.5; padding: 8px 0; }
+.drawer-actions button { flex: 1; padding: 10px; border: none; border-radius: var(--r-sm); cursor: pointer; font-size: 13px; font-weight: 600; transition: all var(--dur) var(--ease); }
+.btn-save { background: var(--accent); color: var(--bg-base); }
+.btn-save:hover { box-shadow: 0 0 16px var(--accent-soft); }
+.btn-delete { background: transparent; color: var(--danger); border: 1px solid var(--danger) !important; }
+.btn-delete:hover { background: var(--danger); color: var(--bg-base); }
+.drawer-hint { font-size: 11px; color: var(--text-muted); line-height: 1.5; padding: 8px 0; }
 
+/* === 动效 + 响应式 === */
 @keyframes auraPulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
-@keyframes zoomIn { from { opacity: 0; transform: scale(.97); } to { opacity: 1; transform: scale(1); } }
+@keyframes zoomIn { from { opacity: 0; transform: scale(.98); } to { opacity: 1; transform: scale(1); } }
 @media (max-width: 860px) {
   #sidebar { width: 220px; }
   #sidebar.collapsed { width: 48px; }
-  #sid-badge { display: none; }
+  #sid-badge { max-width: 24%; }
   #proj-drawer { width: 100vw; }
 }