/* ============================================================
 * Mavis Agent 行业演示集 — 设计系统 v2.0
 *
 * v2 升级点：
 * - 引入"语义色"层级（primary/secondary/accent/danger/warning/success/info）
 * - 阴影体系：sm/md/lg/xl + glow（彩色阴影）
 * - 动画：fade-in/slide-up/typing/pulse，多种缓动函数
 * - 排版优化：tabular-nums、text-balance、leading-trim
 * - 响应式：5 个断点（mobile/tablet/desktop/wide/ultra）
 * - 暗色模式：prefers-color-scheme + 手动切换
 * - 可选"动效库"：通过 [data-motion="on"] 启用
 * ============================================================ */

:root {
 /* === 语义色板（更现代） === */
 --color-primary: #4f46e5;        /* Indigo 600 */
 --color-primary-light: #eef2ff;  /* Indigo 50 */
 --color-primary-mid: #818cf8;    /* Indigo 400 */
 --color-primary-dark: #3730a3;   /* Indigo 800 */
 --color-primary-glow: rgba(79, 70, 229, 0.25);

 --color-accent: #f59e0b;         /* Amber 500 */
 --color-accent-light: #fef3c7;
 --color-accent-dark: #b45309;

 --color-secondary: #0ea5e9;      /* Sky 500 */
 --color-secondary-light: #e0f2fe;

 --color-success: #10b981;
 --color-success-light: #d1fae5;
 --color-success-dark: #047857;

 --color-warning: #f59e0b;
 --color-warning-light: #fef3c7;
 --color-warning-dark: #b45309;

 --color-danger: #ef4444;
 --color-danger-light: #fee2e2;
 --color-danger-dark: #b91c1c;

 --color-info: #6366f1;
 --color-info-light: #e0e7ff;

 /* === 中性色（更细腻） === */
 --color-bg: #fafafa;
 --color-bg-elevated: #ffffff;
 --color-bg-subtle: #f5f5f7;
 --color-bg-overlay: rgba(0,0,0,0.5);

 --color-text: #0f172a;           /* Slate 900 */
 --color-text-secondary: #475569; /* Slate 600 */
 --color-text-tertiary: #94a3b8;  /* Slate 400 */
 --color-text-muted: #cbd5e1;      /* Slate 300 */
 --color-text-inverse: #ffffff;

 --color-border: #e2e8f0;
 --color-border-strong: #cbd5e1;
 --color-border-subtle: #f1f5f9;

 /* === 间距（4-pt 体系） === */
 --space-0: 0;
 --space-1: 4px;
 --space-2: 8px;
 --space-3: 12px;
 --space-4: 16px;
 --space-5: 24px;
 --space-6: 32px;
 --space-7: 48px;
 --space-8: 64px;

 /* === 圆角 === */
 --radius-sm: 6px;
 --radius-md: 10px;
 --radius-lg: 16px;
 --radius-xl: 20px;
 --radius-2xl: 28px;
 --radius-full: 9999px;

 /* === 阴影体系 === */
 --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
 --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
 --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
 --shadow-lg: 0 12px 24px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.04);
 --shadow-xl: 0 24px 48px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.06);
 --shadow-2xl: 0 32px 64px rgba(0,0,0,0.16);
 --shadow-glow: 0 0 0 4px var(--color-primary-glow);
 --shadow-glow-accent: 0 0 0 4px rgba(245, 158, 11, 0.2);

 /* === 字体 === */
 --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
 "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
 --font-family-mono: "SF Mono", "JetBrains Mono", "Fira Code", Consolas, monospace;

 --font-size-xs: 12px;
 --font-size-sm: 13px;
 --font-size-base: 15px;
 --font-size-md: 16px;
 --font-size-lg: 18px;
 --font-size-xl: 22px;
 --font-size-2xl: 28px;
 --font-size-3xl: 36px;
 --font-size-4xl: 48px;

 --line-height-tight: 1.25;
 --line-height-normal: 1.5;
 --line-height-relaxed: 1.75;

 /* === 动画 === */
 --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
 --ease-in: cubic-bezier(0.4, 0, 1, 1);
 --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
 --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
 --duration-fast: 150ms;
 --duration-normal: 250ms;
 --duration-slow: 400ms;

 /* === 难度徽章配色 L1-L5 === */
 --level-1-bg: #f1f5f9; --level-1-fg: #64748b; --level-1-glow: rgba(100,116,139,0.2);
 --level-2-bg: #dbeafe; --level-2-fg: #1d4ed8; --level-2-glow: rgba(29,78,216,0.2);
 --level-3-bg: #ede9fe; --level-3-fg: #6d28d9; --level-3-glow: rgba(109,40,217,0.2);
 --level-4-bg: #fed7aa; --level-4-fg: #c2410c; --level-4-glow: rgba(194,65,12,0.2);
 --level-5-bg: #fecaca; --level-5-fg: #b91c1c; --level-5-glow: rgba(185,28,28,0.2);

 /* === Z-index === */
 --z-base: 0;
 --z-dropdown: 10;
 --z-sticky: 20;
 --z-modal: 50;
 --z-toast: 100;
}

/* ====== 暗色模式 ====== */
@media (prefers-color-scheme: dark) {
 :root {
 --color-bg: #0b0d12;
 --color-bg-elevated: #161922;
 --color-bg-subtle: #1c2030;
 --color-text: #f1f5f9;
 --color-text-secondary: #cbd5e1;
 --color-text-tertiary: #94a3b8;
 --color-text-muted: #475569;
 --color-border: #2a2f3e;
 --color-border-strong: #3b4252;
 --color-border-subtle: #1f2330;
 --color-primary-light: #312e81;
 --color-success-light: #064e3b;
 --color-danger-light: #7f1d1d;
 --color-warning-light: #78350f;
 --color-accent-light: #78350f;
 }
}

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

html {
 font-feature-settings: "cv11", "ss01";
 text-rendering: optimizeLegibility;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
}

body {
 font-family: var(--font-family);
 font-size: var(--font-size-base);
 line-height: var(--line-height-normal);
 color: var(--color-text);
 background: var(--color-bg);
 font-variant-numeric: tabular-nums;
 min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--duration-fast) var(--ease-out); }
a:hover { color: var(--color-primary-dark); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; }

/* ============================================================
 * 布局
 * ============================================================ */
.container { max-width: 1280px; margin: 0 auto; padding: var(--space-6) var(--space-5); }
.container-narrow { max-width: 960px; margin: 0 auto; padding: var(--space-6) var(--space-5); }

.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
 .container { padding: var(--space-5) var(--space-4); }
 .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (min-width: 769px) and (max-width: 1024px) {
 .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* ============================================================
 * 顶部 Header
 * ============================================================ */
.agent-header {
 background: var(--color-bg-elevated);
 border-bottom: 1px solid var(--color-border);
 padding: var(--space-4) var(--space-5);
 display: flex;
 justify-content: space-between;
 align-items: center;
 box-shadow: var(--shadow-sm);
 position: sticky;
 top: 0;
 z-index: var(--z-sticky);
 backdrop-filter: saturate(180%) blur(8px);
 -webkit-backdrop-filter: saturate(180%) blur(8px);
 background: rgba(255,255,255,0.85);
}
@media (prefers-color-scheme: dark) {
 .agent-header { background: rgba(22, 25, 34, 0.85); }
}

.agent-header .back-link {
 color: var(--color-text-secondary);
 font-size: var(--font-size-sm);
 display: flex;
 align-items: center;
 gap: var(--space-2);
 padding: var(--space-2) var(--space-3);
 border-radius: var(--radius-md);
 transition: all var(--duration-fast) var(--ease-out);
}
.agent-header .back-link:hover {
 background: var(--color-bg-subtle);
 color: var(--color-text);
 text-decoration: none;
}
.agent-header .agent-title-group {
 display: flex;
 gap: var(--space-3);
 align-items: center;
 flex-wrap: wrap;
}
.agent-header h1 {
 font-size: var(--font-size-lg);
 font-weight: 700;
 letter-spacing: -0.01em;
}

/* ============================================================
 * 徽章
 * ============================================================ */
.badge {
 display: inline-flex;
 align-items: center;
 padding: 3px 10px;
 border-radius: var(--radius-full);
 font-size: var(--font-size-xs);
 font-weight: 600;
 white-space: nowrap;
 letter-spacing: 0.02em;
 transition: all var(--duration-fast) var(--ease-out);
 line-height: 1.4;
}
.badge-level-1 { background: var(--level-1-bg); color: var(--level-1-fg); }
.badge-level-2 { background: var(--level-2-bg); color: var(--level-2-fg); }
.badge-level-3 { background: var(--level-3-bg); color: var(--level-3-fg); }
.badge-level-4 { background: var(--level-4-bg); color: var(--level-4-fg); }
.badge-level-5 { background: var(--level-5-bg); color: var(--level-5-fg); }
.badge-form { background: var(--color-bg-subtle); color: var(--color-text-secondary); border: 1px solid var(--color-border); }

/* 行业徽章（10 种行业 +5 种 v2 新增） */
.badge-industry-office { background: #e0e7ff; color: #3730a3; }
.badge-industry-ecommerce { background: #fef3c7; color: #92400e; }
.badge-industry-customer-service { background: #fce7f3; color: #9d174d; }
.badge-industry-education { background: #ccfbf1; color: #115e59; }
.badge-industry-hr { background: #fae8ff; color: #86198f; }
.badge-industry-logistics { background: #cffafe; color: #155e75; }
.badge-industry-manufacturing { background: #fed7aa; color: #9a3412; }
.badge-industry-legal { background: #e0e7ff; color: #312e81; }
.badge-industry-medical { background: #fee2e2; color: #991b1b; }
.badge-industry-finance { background: #d1fae5; color: #065f46; }

/* 状态徽章 */
.badge-success { background: var(--color-success-light); color: var(--color-success-dark); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning-dark); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger-dark); }
.badge-info { background: var(--color-info-light); color: var(--color-info); }

/* ============================================================
 * 卡片（带微动画）
 * ============================================================ */
.card {
 background: var(--color-bg-elevated);
 border-radius: var(--radius-lg);
 padding: var(--space-5);
 box-shadow: var(--shadow-sm);
 border: 1px solid var(--color-border-subtle);
 transition: box-shadow var(--duration-normal) var(--ease-out),
 transform var(--duration-normal) var(--ease-out);
}
.card:hover { box-shadow: var(--shadow-md); }
.card-header {
 font-size: var(--font-size-lg);
 font-weight: 700;
 margin-bottom: var(--space-4);
 display: flex;
 align-items: center;
 gap: var(--space-2);
 letter-spacing: -0.01em;
}
.card-section { margin-bottom: var(--space-4); }
.card-section:last-child { margin-bottom: 0; }
.card-elevated { box-shadow: var(--shadow-md); }
.card-flat { box-shadow: none; border: 1px solid var(--color-border); }

/* ============================================================
 * 按钮
 * ============================================================ */
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: var(--space-2);
 padding: 9px 16px;
 border-radius: var(--radius-md);
 border: 1px solid var(--color-border);
 background: var(--color-bg-elevated);
 color: var(--color-text);
 cursor: pointer;
 font-size: var(--font-size-sm);
 font-weight: 500;
 font-family: inherit;
 transition: all var(--duration-fast) var(--ease-out);
 white-space: nowrap;
 user-select: none;
}
.btn:hover {
 background: var(--color-bg-subtle);
 border-color: var(--color-border-strong);
 transform: translateY(-1px);
 box-shadow: var(--shadow-sm);
}
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
 background: var(--color-primary);
 color: var(--color-text-inverse);
 border-color: var(--color-primary);
 box-shadow: 0 1px 2px rgba(79,70,229,0.3);
}
.btn-primary:hover {
 background: var(--color-primary-dark);
 border-color: var(--color-primary-dark);
 box-shadow: 0 4px 12px var(--color-primary-glow);
 color: var(--color-text-inverse);
}
.btn-success {
 background: var(--color-success);
 color: white;
 border-color: var(--color-success);
}
.btn-danger {
 background: var(--color-danger);
 color: white;
 border-color: var(--color-danger);
}
.btn-ghost {
 background: transparent;
 border: 1px solid transparent;
}
.btn-sm { padding: 5px 10px; font-size: var(--font-size-xs); }
.btn-lg { padding: 12px 24px; font-size: var(--font-size-md); }

/* ============================================================
 * 输入
 * ============================================================ */
.input, .textarea, .select {
 width: 100%;
 padding: 9px 12px;
 border-radius: var(--radius-md);
 border: 1px solid var(--color-border);
 background: var(--color-bg-elevated);
 font-family: inherit;
 font-size: var(--font-size-sm);
 color: var(--color-text);
 transition: all var(--duration-fast) var(--ease-out);
 line-height: var(--line-height-normal);
}
.textarea { min-height: 120px; resize: vertical; font-family: inherit; }
.input:hover, .textarea:hover, .select:hover { border-color: var(--color-border-strong); }
.input:focus, .textarea:focus, .select:focus {
 outline: none;
 border-color: var(--color-primary);
 box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.input::placeholder, .textarea::placeholder { color: var(--color-text-muted); }

/* ============================================================
 * 标签
 * ============================================================ */
.label {
 display: block;
 font-size: var(--font-size-sm);
 font-weight: 600;
 margin-bottom: var(--space-2);
 color: var(--color-text);
 letter-spacing: 0.01em;
}
.label-secondary {
 font-size: var(--font-size-sm);
 font-weight: 500;
 color: var(--color-text-secondary);
 margin-bottom: var(--space-2);
}
.help-text {
 font-size: var(--font-size-xs);
 color: var(--color-text-tertiary);
 margin-top: var(--space-1);
}

/* ============================================================
 * 加载动画
 * ============================================================ */
.loading {
 display: inline-flex;
 align-items: center;
 gap: var(--space-2);
 color: var(--color-text-secondary);
 font-size: var(--font-size-sm);
}
.loading-dots { display: inline-flex; gap: 4px; }
.loading-dots span {
 width: 6px; height: 6px; border-radius: 50%;
 background: var(--color-primary);
 animation: bounce 1.4s infinite ease-in-out both;
}
.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }
@keyframes bounce {
 0%, 80%, 100% { transform: scale(0); }
 40% { transform: scale(1); }
}

/* 骨架屏（更精致的加载占位） */
.skeleton {
 background: linear-gradient(90deg, var(--color-bg-subtle) 25%, var(--color-border-subtle) 50%, var(--color-bg-subtle) 75%);
 background-size: 200% 100%;
 animation: skeleton-shimmer 1.5s infinite;
 border-radius: var(--radius-sm);
 height: 1em;
}
@keyframes skeleton-shimmer {
 0% { background-position: 200% 0; }
 100% { background-position: -200% 0; }
}

/* ============================================================
 * 聊天
 * ============================================================ */
.chat-container {
 display: flex;
 flex-direction: column;
 height: 60vh;
 min-height: 480px;
 background: var(--color-bg-elevated);
 border-radius: var(--radius-lg);
 border: 1px solid var(--color-border-subtle);
 box-shadow: var(--shadow-sm);
 overflow: hidden;
}
.chat-header {
 padding: var(--space-3) var(--space-4);
 border-bottom: 1px solid var(--color-border-subtle);
 display: flex;
 align-items: center;
 gap: var(--space-3);
 background: linear-gradient(180deg, var(--color-bg-elevated), var(--color-bg-subtle));
}
.chat-avatar {
 width: 36px; height: 36px;
 border-radius: 50%;
 background: var(--color-primary);
 color: white;
 display: flex; align-items: center; justify-content: center;
 font-weight: 600;
}
.chat-status-dot {
 width: 8px; height: 8px;
 border-radius: 50%;
 background: var(--color-success);
 box-shadow: 0 0 0 3px rgba(16,185,129,0.2);
 animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
 0%, 100% { box-shadow: 0 0 0 3px rgba(16,185,129,0.2); }
 50% { box-shadow: 0 0 0 6px rgba(16,185,129,0.05); }
}
.chat-messages {
 flex: 1;
 overflow-y: auto;
 padding: var(--space-4);
 display: flex;
 flex-direction: column;
 gap: var(--space-3);
 scroll-behavior: smooth;
}
.chat-bubble {
 max-width: 72%;
 padding: var(--space-3) var(--space-4);
 border-radius: var(--radius-lg);
 font-size: var(--font-size-sm);
 line-height: var(--line-height-relaxed);
 word-wrap: break-word;
 animation: fade-in-up 0.3s var(--ease-out);
}
.chat-bubble-user {
 align-self: flex-end;
 background: var(--color-primary);
 color: white;
 border-bottom-right-radius: 4px;
}
.chat-bubble-agent {
 align-self: flex-start;
 background: var(--color-bg-subtle);
 color: var(--color-text);
 border-bottom-left-radius: 4px;
 border: 1px solid var(--color-border-subtle);
}
.chat-bubble-typing {
 align-self: flex-start;
 background: var(--color-bg-subtle);
 padding: var(--space-3) var(--space-4);
 border-radius: var(--radius-lg);
 border-bottom-left-radius: 4px;
}
.chat-input-bar {
 display: flex;
 gap: var(--space-2);
 padding: var(--space-3) var(--space-4);
 border-top: 1px solid var(--color-border-subtle);
 background: var(--color-bg-elevated);
}
.chat-quick-questions {
 display: flex;
 gap: var(--space-2);
 flex-wrap: wrap;
 padding: var(--space-3) var(--space-4) 0;
}

/* 滚动条美化 */
.chat-messages::-webkit-scrollbar { width: 6px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb {
 background: var(--color-border-strong);
 border-radius: 3px;
}
.chat-messages::-webkit-scrollbar-thumb:hover { background: var(--color-text-tertiary); }

/* ============================================================
 * 步骤指示器（工作流）
 * ============================================================ */
.steps {
 display: flex;
 gap: var(--space-3);
 margin-bottom: var(--space-5);
 flex-wrap: wrap;
}
.step {
 flex: 1;
 min-width: 140px;
 padding: var(--space-3) var(--space-4);
 background: var(--color-bg-subtle);
 border-radius: var(--radius-md);
 font-size: var(--font-size-sm);
 color: var(--color-text-secondary);
 display: flex;
 align-items: center;
 gap: var(--space-3);
 border: 2px solid transparent;
 transition: all var(--duration-normal) var(--ease-out);
 position: relative;
}
.step.active {
 background: var(--color-primary-light);
 color: var(--color-primary-dark);
 border-color: var(--color-primary);
 box-shadow: var(--shadow-glow);
 transform: scale(1.02);
}
.step.done {
 background: var(--color-success-light);
 color: var(--color-success-dark);
 border-color: var(--color-success);
}
.step-icon {
 width: 28px; height: 28px;
 border-radius: 50%;
 background: var(--color-bg-elevated);
 display: flex; align-items: center; justify-content: center;
 font-size: var(--font-size-xs); font-weight: 700;
 transition: all var(--duration-fast) var(--ease-out);
}
.step.active .step-icon { background: var(--color-primary); color: white; }
.step.done .step-icon { background: var(--color-success); color: white; }

/* ============================================================
 * 风险等级
 * ============================================================ */
.risk-high { color: var(--color-danger); font-weight: 600; }
.risk-medium { color: var(--color-warning); font-weight: 600; }
.risk-low { color: var(--color-success); font-weight: 600; }

.risk-bar {
 display: flex; align-items: center; gap: var(--space-2);
 height: 8px;
 background: var(--color-bg-subtle);
 border-radius: var(--radius-full);
 overflow: hidden;
}
.risk-bar-fill {
 height: 100%;
 border-radius: var(--radius-full);
 transition: width var(--duration-slow) var(--ease-out);
}

/* 风险高亮（合同法务） */
.risk-highlight-high {
 background: #fecaca;
 padding: 2px 6px;
 border-radius: 4px;
 border-bottom: 2px solid var(--color-danger);
}
.risk-highlight-medium {
 background: #fed7aa;
 padding: 2px 6px;
 border-radius: 4px;
 border-bottom: 2px solid var(--color-warning);
}
.risk-highlight-low {
 background: #d1fae5;
 padding: 2px 6px;
 border-radius: 4px;
 border-bottom: 2px solid var(--color-success);
}

/* ============================================================
 * 免责声明
 * ============================================================ */
.disclaimer {
 background: #fffbeb;
 border: 1px solid #fcd34d;
 border-radius: var(--radius-md);
 padding: var(--space-3) var(--space-4);
 font-size: var(--font-size-xs);
 color: #92400e;
 margin-top: var(--space-5);
 line-height: var(--line-height-relaxed);
 display: flex;
 align-items: flex-start;
 gap: var(--space-2);
}
.disclaimer::before {
 content: "⚠️";
 flex-shrink: 0;
 font-size: var(--font-size-md);
}
.disclaimer-danger {
 background: var(--color-danger-light);
 border-color: var(--color-danger);
 color: #7f1d1d;
}
.disclaimer-danger::before { content: "🚨"; }

/* ============================================================
 * Footer
 * ============================================================ */
.agent-footer {
 background: var(--color-bg-elevated);
 border-top: 1px solid var(--color-border-subtle);
 padding: var(--space-5) var(--space-4);
 text-align: center;
 font-size: var(--font-size-xs);
 color: var(--color-text-tertiary);
 margin-top: var(--space-7);
}
.agent-footer a { color: var(--color-text-secondary); }
.agent-footer a:hover { color: var(--color-primary); }

/* ============================================================
 * 文本
 * ============================================================ */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-muted { color: var(--color-text-muted); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-primary { color: var(--color-primary); }
.text-bold { font-weight: 700; }
.text-semi { font-weight: 600; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mono { font-family: var(--font-family-mono); font-variant-numeric: tabular-nums; }

/* ============================================================
 * 工具类
 * ============================================================ */
.divider {
 height: 1px;
 background: var(--color-border-subtle);
 margin: var(--space-5) 0;
}
.hidden { display: none !important; }
.no-wrap { white-space: nowrap; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============================================================
 * 动效（默认开启）
 * ============================================================ */
@keyframes fade-in {
 from { opacity: 0; }
 to { opacity: 1; }
}
@keyframes fade-in-up {
 from { opacity: 0; transform: translateY(8px); }
 to { opacity: 1; transform: translateY(0); }
}
@keyframes slide-in-right {
 from { opacity: 0; transform: translateX(20px); }
 to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
 0%, 100% { opacity: 1; }
 50% { opacity: 0.6; }
}
.fade-in { animation: fade-in var(--duration-normal) var(--ease-out); }
.fade-in-up { animation: fade-in-up var(--duration-normal) var(--ease-out); }
.slide-in-right { animation: slide-in-right var(--duration-normal) var(--ease-out); }

/* ============================================================
 * 高级动效（默认关闭，data-motion="on" 时启用）
 * ============================================================ */
[data-motion="on"] .card {
 transition: all var(--duration-normal) var(--ease-out);
}
[data-motion="on"] .card:hover {
 transform: translateY(-3px);
 box-shadow: var(--shadow-lg);
}
[data-motion="on"] .btn {
 transition: all var(--duration-fast) var(--ease-spring);
}
[data-motion="on"] .btn:hover { transform: translateY(-2px) scale(1.02); }
[data-motion="on"] .btn:active { transform: scale(0.98); }
[data-motion="on"] .badge { transition: all var(--duration-fast) var(--ease-spring); }
[data-motion="on"] .badge:hover { transform: scale(1.05); }

/* 渐入容器：用于动态生成的内容 */
[data-motion="on"] .stagger > * {
 opacity: 0;
 animation: fade-in-up var(--duration-slow) var(--ease-out) forwards;
}
[data-motion="on"] .stagger > *:nth-child(1) { animation-delay: 0.05s; }
[data-motion="on"] .stagger > *:nth-child(2) { animation-delay: 0.1s; }
[data-motion="on"] .stagger > *:nth-child(3) { animation-delay: 0.15s; }
[data-motion="on"] .stagger > *:nth-child(4) { animation-delay: 0.2s; }
[data-motion="on"] .stagger > *:nth-child(5) { animation-delay: 0.25s; }
[data-motion="on"] .stagger > *:nth-child(6) { animation-delay: 0.3s; }
[data-motion="on"] .stagger > *:nth-child(7) { animation-delay: 0.35s; }
[data-motion="on"] .stagger > *:nth-child(8) { animation-delay: 0.4s; }

/* ============================================================
 * 图表占位
 * ============================================================ */
.radar-chart, .pie-chart, .bar-chart {
 width: 100%;
 height: 220px;
}

/* ============================================================
 * 适配旧版组件（向后兼容）
 * ============================================================ */
.chat-bubble-agent { align-self: flex-start; }
.chat-bubble-user { align-self: flex-end; }