/* ================================================================
   AI婚礼主持金牌搭档 · 全局样式表
   主题：清醒的浪漫 · 深色婚礼美学
================================================================ */

/* ── CSS 变量系统 ──────────────────────────────────────────────── */
:root {
  --bg-base:        #0f0f13;
  --bg-surface:     #1a1a22;
  --bg-elevated:    #22222d;
  --bg-hover:       #2a2a38;
  --bg-glass:       rgba(26, 26, 34, 0.85);

  --gold:           #c9a96e;
  --gold-light:     #e8d5b7;
  --gold-dim:       rgba(201, 169, 110, 0.25);
  --gold-border:    rgba(201, 169, 110, 0.18);

  --text-primary:   #f0ece6;
  --text-secondary: #8a8590;
  --text-muted:     #555362;
  --text-gold:      #c9a96e;

  --success:        #4caf7d;
  --error:          #e06c6c;
  --warning:        #e8a44a;

  --border:         rgba(255,255,255,0.07);
  --border-gold:    rgba(201,169,110,0.2);

  --radius-sm:      8px;
  --radius-md:      12px;
  --radius-lg:      18px;
  --radius-xl:      24px;

  --shadow-sm:      0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:      0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:      0 8px 40px rgba(0,0,0,0.5);
  --shadow-gold:    0 4px 20px rgba(201,169,110,0.15);

  --header-h:       56px;
  --nav-h:          60px;
  --safe-bottom:    env(safe-area-inset-bottom, 0px);
  --font-ui:        'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-doc:       'Noto Serif SC', 'Songti SC', 'SimSun', Georgia, serif;
}

/* ── 基础重置 ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ui);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── 顶部导航栏 ────────────────────────────────────────────────── */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  padding: 0 16px;
  padding-top: env(safe-area-inset-top, 0px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-gold);
  z-index: 100;
}

.header-left { display: flex; align-items: center; gap: 8px; }

.app-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.logo-icon { font-size: 20px; }
.logo-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--gold-light);
  letter-spacing: 0.5px;
}

.header-title {
  font-size: 14px;
  color: var(--text-secondary);
  flex: 1;
  text-align: center;
}

.header-actions { display: flex; gap: 8px; align-items: center; }

/* ── 主内容区域 ────────────────────────────────────────────────── */
.app-main {
  margin-top: var(--header-h);
  min-height: calc(100dvh - var(--header-h) - var(--nav-h));
  position: relative;
}

.view { width: 100%; min-height: calc(100dvh - var(--header-h) - var(--nav-h)); }

.view-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px 16px calc(var(--nav-h) + var(--safe-bottom) + 24px);
}

/* ── 按钮系统 ──────────────────────────────────────────────────── */
.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, #b8924a 100%);
  color: #1a1200;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-gold); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-secondary:hover { background: var(--bg-hover); }

.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.btn-icon:hover { color: var(--text-primary); background: var(--bg-elevated); }

.btn-icon-sm {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-size: 12px;
}
.btn-icon-sm:hover { color: var(--gold); border-color: var(--gold-border); }

/* ── 项目列表视图 ──────────────────────────────────────────────── */
.page-hero {
  padding: 24px 0 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.page-title {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.project-card:hover { border-color: var(--border-gold); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.project-card:hover::before { opacity: 1; }

.card-couple {
  font-size: 18px;
  font-weight: 600;
  color: var(--gold-light);
  margin-bottom: 6px;
}
.card-date {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
}
.card-status.draft    { color: var(--text-secondary); }
.card-status.refining { color: var(--gold); background: var(--gold-dim); }
.card-status.done     { color: var(--success); background: rgba(76,175,125,0.15); }

.card-version {
  font-size: 12px;
  color: var(--text-muted);
}

.empty-state {
  text-align: center;
  padding: 80px 20px;
}
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-title { font-size: 18px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.empty-desc  { font-size: 14px; color: var(--text-muted); }

/* FAB 浮动按钮 */
.fab {
  position: fixed;
  bottom: calc(var(--nav-h) + var(--safe-bottom) + 20px);
  right: 20px;
  background: linear-gradient(135deg, var(--gold) 0%, #b8924a 100%);
  color: #1a1200;
  border: none;
  border-radius: 28px;
  padding: 14px 22px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-ui);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 24px rgba(201,169,110,0.35);
  transition: all 0.25s;
  z-index: 50;
}
.fab:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(201,169,110,0.45); }
.fab:active { transform: scale(0.97); }

/* ── 新建项目表单 ──────────────────────────────────────────────── */
.form-view { max-width: 640px; }

.form-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--gold-light);
  margin-bottom: 28px;
  margin-top: 8px;
}

.form-section {
  margin-bottom: 28px;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
  margin-bottom: 14px;
}
.optional { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--text-muted); font-size: 11px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

input[type="text"], input[type="date"], textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 14px;
  padding: 11px 14px;
  width: 100%;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}
input[type="text"]:focus, input[type="date"]:focus, textarea:focus {
  outline: none;
  border-color: var(--gold-border);
  box-shadow: 0 0 0 3px rgba(201,169,110,0.08);
}
::placeholder { color: var(--text-muted); }

.questionnaire-text { resize: vertical; min-height: 80px; line-height: 1.6; }

.file-upload-area {
  background: var(--bg-elevated);
  border: 1.5px dashed var(--border-gold);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 12px;
}
.file-upload-area:hover { border-color: var(--gold); background: var(--gold-dim); }
.file-upload-area.compact {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.upload-icon { font-size: 28px; margin-bottom: 8px; }
.upload-text { font-size: 14px; color: var(--text-secondary); font-weight: 500; }
.upload-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.upload-result {
  background: rgba(76,175,125,0.1);
  border: 1px solid rgba(76,175,125,0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--success);
  margin-bottom: 10px;
}

.form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  padding-top: 8px;
}

.btn-generate {
  padding: 13px 28px;
  font-size: 15px;
}

/* ── 工作台视图 ────────────────────────────────────────────────── */
.workspace-view {
  display: none;
  height: calc(100dvh - var(--header-h));
  overflow: hidden;
}
.workspace-view.active { display: flex !important; }

.workspace-sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-section { }
.sidebar-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.couple-info {
  font-size: 16px;
  font-weight: 600;
  color: var(--gold-light);
  line-height: 1.4;
}
.couple-info .wedding-date {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 4px;
}

.version-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.version-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all 0.15s;
}
.version-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
.version-item.active { background: var(--gold-dim); color: var(--gold-light); }
.version-item .v-num { font-weight: 600; font-size: 12px; }
.version-item .v-label { font-size: 11px; color: var(--text-muted); }

.btn-regenerate {
  width: 100%;
  background: none;
  border: 1px solid var(--border-gold);
  color: var(--gold);
  border-radius: var(--radius-md);
  padding: 10px;
  font-size: 13px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-regenerate:hover { background: var(--gold-dim); }

/* 文档主区域 */
.workspace-document {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.doc-toolbar {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.doc-version-badge {
  background: var(--gold-dim);
  color: var(--gold);
  border: 1px solid var(--gold-border);
  border-radius: 20px;
  padding: 2px 12px;
  font-size: 12px;
  font-weight: 600;
}
.doc-actions { display: flex; gap: 6px; }

.doc-content {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px;
  position: relative;
}

.doc-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--text-muted);
  gap: 12px;
}
.placeholder-icon { font-size: 48px; }
.doc-placeholder p { font-size: 15px; }
.placeholder-hint { font-size: 13px; color: var(--text-muted); }

/* 主持词文档样式 */
.doc-text {
  font-family: var(--font-doc);
  font-size: 16px;
  line-height: 2.2;
  color: var(--text-primary);
  white-space: pre-wrap;
  max-width: 680px;
  margin: 0 auto;
}

/* 生成中覆盖层 */
.generating-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,15,19,0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.generating-content { text-align: center; }
.generating-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.step {
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.5s;
}
.step.active { color: var(--gold-light); font-weight: 500; }

.generating-spinner {
  width: 36px;
  height: 36px;
  border: 2px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 文档底部浮动按钮组 */
.doc-fab-group {
  position: absolute;
  bottom: calc(var(--safe-bottom) + 16px);
  right: 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  z-index: 5;
}
.fab-main {
  background: linear-gradient(135deg, var(--gold), #b8924a);
  color: #1a1200;
  border: none;
  border-radius: 24px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-ui);
  cursor: pointer;
  box-shadow: var(--shadow-gold);
  transition: all 0.2s;
}
.fab-main:hover { transform: translateY(-2px); }
.fab-mini {
  background: var(--bg-elevated);
  border: 1px solid var(--border-gold);
  color: var(--gold);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
}
.fab-mini:hover { background: var(--gold-dim); }

/* 聊天面板 */
.workspace-chat {
  width: 300px;
  flex-shrink: 0;
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.chat-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.btn-lesson {
  background: none;
  border: 1px solid var(--border-gold);
  color: var(--gold);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 12px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-lesson:hover { background: var(--gold-dim); }

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-welcome {
  text-align: center;
  color: var(--text-muted);
  padding: 30px 10px;
  font-size: 13px;
  line-height: 1.7;
}
.chat-welcome-hint { font-size: 12px; margin-top: 6px; }

.chat-bubble {
  max-width: 90%;
  padding: 9px 13px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.6;
  animation: fadeUp 0.2s ease;
}
@keyframes fadeUp { from { opacity:0; transform:translateY(6px); } }
.chat-bubble.user {
  background: var(--gold-dim);
  border: 1px solid var(--gold-border);
  color: var(--gold-light);
  align-self: flex-end;
}
.chat-bubble.ai {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  align-self: flex-start;
}
.chat-bubble.thinking {
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-style: italic;
  font-size: 12px;
  align-self: flex-start;
}

.chat-input-area {
  padding: 10px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  align-items: flex-end;
  flex-shrink: 0;
}
.chat-input-area textarea {
  flex: 1;
  font-size: 13px;
  padding: 8px 11px;
  resize: none;
  min-height: 36px;
  max-height: 120px;
  line-height: 1.5;
}
.btn-send {
  background: var(--gold);
  border: none;
  border-radius: var(--radius-sm);
  color: #1a1200;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
.btn-send:hover { background: var(--gold-light); }

/* ── 样板库 ────────────────────────────────────────────────────── */
.upload-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.template-title-input { font-size: 15px; }

.templates-list { display: flex; flex-direction: column; gap: 10px; }
.template-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: all 0.2s;
}
.template-card:hover { border-color: var(--border-gold); }
.template-card-title { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.template-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.template-tag {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 11px;
}
.template-meta { font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.badge-analyzing {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(232,164,74,0.15);
  color: var(--warning);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 11px;
}

/* ── 全局规则 ──────────────────────────────────────────────────── */
.rules-container { display: flex; flex-direction: column; gap: 20px; }
.rules-category {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.rules-category-header {
  padding: 14px 18px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.category-icon { font-size: 16px; }
.category-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.category-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.rule-item {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.rule-item:last-child { border-bottom: none; }

.rule-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.2s;
}
.rule-item:hover .rule-actions { opacity: 1; }

.btn-rule-edit, .btn-rule-disable {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 4px 7px;
  font-size: 13px;
  transition: all 0.15s;
}
.btn-rule-edit:hover   { background: var(--gold-dim); border-color: var(--gold-border); }
.btn-rule-disable:hover { background: rgba(224,108,108,0.15); border-color: rgba(224,108,108,0.3); }

.rule-priority {
  background: var(--gold-dim);
  color: var(--gold);
  border-radius: 20px;
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}
.rule-text { font-size: 13px; color: var(--text-primary); line-height: 1.6; flex: 1; }
.rule-examples { margin-top: 6px; }
.rule-bad  { font-size: 12px; color: var(--error);   }
.rule-good { font-size: 12px; color: var(--success); }

/* ── 底部导航 ──────────────────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-h) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-gold);
  display: flex;
  align-items: stretch;
  z-index: 100;
}
.nav-item {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-ui);
  font-size: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 0;
  transition: all 0.2s;
}
.nav-item.active { color: var(--gold); }
.nav-item svg { transition: transform 0.2s; }
.nav-item.active svg { transform: scale(1.1); }
.nav-item span { font-size: 10px; font-weight: 500; }

/* ── 弹窗 ──────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 200;
  padding: 0 0 var(--safe-bottom);
}
@media (min-width: 600px) {
  .modal-overlay { align-items: center; }
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  width: 100%;
  max-width: 560px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
@media (min-width: 600px) {
  .modal { border-radius: var(--radius-xl); }
}
@keyframes slideUp { from { transform:translateY(100%); opacity:0; } }

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.modal-header h3 { font-size: 16px; font-weight: 600; }

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
}
.modal-loading {
  text-align: center;
  padding: 30px;
  color: var(--text-secondary);
  font-size: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  flex-shrink: 0;
}

/* 踩雷规则条目 */
.lesson-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 10px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.lesson-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--gold);
}
.lesson-content { flex: 1; }
.lesson-category {
  font-size: 11px;
  color: var(--gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.lesson-text { font-size: 13px; color: var(--text-primary); line-height: 1.6; }
.lesson-example { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

/* ── Toast 提示 ────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(var(--nav-h) + var(--safe-bottom) + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 14px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 300;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.success { border-color: rgba(76,175,125,0.4); color: var(--success); }
.toast.error   { border-color: rgba(224,108,108,0.4); color: var(--error);   }

/* ── 响应式：移动端工作台 ──────────────────────────────────────── */
.mobile-only { display: none; }

@media (max-width: 768px) {
  .workspace-sidebar { display: none; }
  .workspace-chat {
    position: fixed;
    inset: var(--header-h) 0 calc(var(--nav-h) + var(--safe-bottom)) 0;
    width: 100%;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
    z-index: 50;
  }
  .workspace-chat.open { transform: translateX(0); }
  .mobile-only { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .doc-content { padding: 20px 16px; }
  .doc-text { font-size: 15px; }
}

/* ── 滚动条美化 ────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── 工具类 ────────────────────────────────────────────────────── */
.hidden { display: none !important; }