/* ============================================
   南京百华软件科技有限公司 - 企业官网设计系统
   MES 生产制造系统 | 简约大气风格
   ============================================ */

/* ===== 设计令牌 (Design Tokens) ===== */
:root {
  /* 品牌主色 - 科技蓝 */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* 品牌深色 - 商务藏青 */
  --color-navy-700: #1e293b;
  --color-navy-800: #0f172a;
  --color-navy-900: #020617;

  /* 强调色 */
  --color-accent: #06b6d4;
  --color-accent-dark: #0891b2;

  /* 语义色 */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* 中性色 */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  /* 字体 */
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* 字号 */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* 间距 - 8点网格 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* 圆角 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-blue: 0 10px 30px -5px rgb(37 99 235 / 0.3);

  /* 过渡 */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* 布局 */
  --container-max: 1280px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ===== 布局容器 ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section-sm {
  padding: var(--space-16) 0;
}

/* ===== 排版 ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 区块标题 ===== */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  letter-spacing: 0.05em;
}

.section-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary-600);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-navy-800);
  line-height: 1.3;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-500);
  line-height: 1.8;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn svg {
  width: 20px;
  height: 20px;
}

.btn-primary {
  background: var(--color-primary-600);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary-700);
  border-color: var(--color-gray-200);
}

.btn-secondary:hover {
  border-color: var(--color-primary-300);
  background: var(--color-primary-50);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--text-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
}

.navbar .container {
  height: 100%;
}

.navbar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: var(--radius-md);
  color: var(--color-white);
  flex-shrink: 0;
  overflow: hidden;
}

.nav-logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo-text .name {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy-800);
}

.nav-logo-text .sub {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  font-weight: 400;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary-700);
  background: var(--color-primary-50);
}

.nav-link.active {
  color: var(--color-primary-700);
  font-weight: 600;
}

/* 下划线滑动动画：默认收起，hover / active 时从左滑出 */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: var(--space-4);
  right: var(--space-4);
  height: 3px;
  background: var(--color-primary-600);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-cta {
  margin-left: var(--space-4);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-navy-800);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 导航栏动效（下划线滑动 / 进场淡入 / logo 微交互） ===== */
@keyframes navFadeIn {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav-logo,
.nav-menu li {
  opacity: 0;
  animation: navFadeIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.nav-logo { animation-delay: 0.05s; }
.nav-menu li:nth-child(1) { animation-delay: 0.10s; }
.nav-menu li:nth-child(2) { animation-delay: 0.15s; }
.nav-menu li:nth-child(3) { animation-delay: 0.20s; }
.nav-menu li:nth-child(4) { animation-delay: 0.25s; }
.nav-menu li:nth-child(5) { animation-delay: 0.30s; }
.nav-menu li:nth-child(6) { animation-delay: 0.35s; }
.nav-menu li:nth-child(7) { animation-delay: 0.40s; }
.nav-menu li:nth-child(8) { animation-delay: 0.45s; }

/* logo 图标 hover 微缩放 */
.nav-logo-icon {
  transition: transform var(--transition-fast);
}
a.nav-logo:hover .nav-logo-icon {
  transform: scale(1.08);
}

/* 尊重无障碍：减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .nav-logo,
  .nav-menu li {
    opacity: 1;
    animation: none;
  }
  .nav-link::after {
    transition: none;
  }
}

/* ===== Hero 区域 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: var(--color-navy-800);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 0%, rgba(37, 99, 235, 0.3) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(6, 182, 212, 0.2) 0%, transparent 50%),
    linear-gradient(135deg, var(--color-navy-800) 0%, var(--color-navy-900) 100%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: var(--color-primary-600);
  top: -100px;
  right: -100px;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  bottom: -100px;
  left: -50px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: var(--space-16) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--color-primary-300);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.3);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(6, 182, 212, 0.1); }
}

.hero-title {
  font-size: var(--text-6xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: var(--text-xl);
  color: var(--color-gray-400);
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: var(--space-10);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-12);
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat-value {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}

.hero-stat-value .unit {
  font-size: var(--text-xl);
  color: var(--color-primary-400);
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-top: var(--space-2);
}

/* ===== 卡片 ===== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  padding: var(--space-8);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-icon {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-5);
  transition: transform var(--transition-normal);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(-5deg);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-3);
}

.card-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.8;
}

/* ===== 网格布局 ===== */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

/* ===== 特性卡片变体 ===== */
.feature-card {
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-600), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.icon-blue { background: var(--color-primary-50); color: var(--color-primary-600); }
.icon-cyan { background: #ecfeff; color: var(--color-accent-dark); }
.icon-green { background: #ecfdf5; color: var(--color-success); }
.icon-amber { background: #fffbeb; color: var(--color-warning); }
.icon-purple { background: #f5f3ff; color: #7c3aed; }
.icon-red { background: #fef2f2; color: var(--color-error); }

/* ===== 数据统计区域 ===== */
.stats-section {
  background: var(--color-gray-50);
}

.stat-block {
  text-align: center;
  padding: var(--space-6);
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--color-primary-600);
  line-height: 1;
}

.stat-number .unit {
  font-size: var(--text-2xl);
  color: var(--color-primary-400);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-3);
  font-weight: 500;
}

/* ===== CTA 区域 ===== */
.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-box {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-900));
  border-radius: var(--radius-2xl);
  padding: var(--space-16) var(--space-12);
  text-align: center;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.3), transparent 70%);
  border-radius: 50%;
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.3), transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-desc {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--color-navy-800);
  color: var(--color-gray-400);
  padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-4);
}

.footer-brand .nav-logo .name {
  color: var(--color-white);
}

.footer-brand .nav-logo .sub {
  color: var(--color-gray-500);
}

.footer-desc {
  font-size: var(--text-sm);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary-600);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul li {
  margin-bottom: var(--space-3);
}

.footer-col ul li a {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--color-primary-400);
}

.footer-contact-item {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary-400);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
}

.footer-bottom a {
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: var(--color-primary-400);
}

/* ===== 页面横幅 ===== */
.page-banner {
  position: relative;
  padding: calc(var(--header-height) + var(--space-20)) 0 var(--space-20);
  background: var(--color-navy-800);
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 50%, rgba(6, 182, 212, 0.15) 0%, transparent 60%);
}

.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.page-banner h1 {
  font-size: var(--text-5xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.page-banner p {
  font-size: var(--text-lg);
  color: var(--color-gray-400);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.breadcrumb a:hover {
  color: var(--color-primary-400);
}

.breadcrumb .separator {
  color: var(--color-gray-600);
}

/* ===== 时间轴 ===== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary-300), var(--color-primary-600), var(--color-primary-300));
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 var(--space-12) var(--space-12) 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding: 0 0 var(--space-12) var(--space-12);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  right: -9px;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-white);
  border: 4px solid var(--color-primary-600);
  box-shadow: 0 0 0 4px var(--color-primary-100);
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -9px;
  right: auto;
}

.timeline-content {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.timeline-year {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary-600);
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-2);
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.8;
}

/* ===== 表单 ===== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-gray-800);
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  display: none;
}

.form-error.show {
  display: block;
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
}

/* ===== 联系信息卡片 ===== */
.contact-info-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-normal);
}

.contact-info-card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-md);
}

.contact-info-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 24px;
  height: 24px;
}

.contact-info-label {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.contact-info-value {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-navy-800);
  line-height: 1.5;
}

/* ===== 价值卡片 ===== */
.value-card {
  text-align: center;
  padding: var(--space-10);
}

.value-icon {
  width: 128px;
  height: 128px;
  margin: 0 auto var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-2xl);
}

.value-icon svg {
  width: 36px;
  height: 36px;
}

.value-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-3);
}

.value-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.8;
}

/* ===== 产品模块卡片 ===== */
.module-card {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-normal);
}

.module-card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.module-icon {
  width: 88px;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.module-icon svg {
  width: 26px;
  height: 26px;
}

.module-content h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-2);
}

.module-content p {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.module-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.module-tag {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  background: var(--color-gray-50);
  color: var(--color-gray-600);
  border-radius: var(--radius-full);
  font-weight: 500;
}

/* ===== 技术架构步骤 ===== */
.process-step {
  position: relative;
  text-align: center;
}

.process-step-number {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 2px solid var(--color-primary-200);
  border-radius: 50%;
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary-600);
  transition: all var(--transition-normal);
}

.process-step:hover .process-step-number {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: var(--color-white);
  transform: scale(1.1);
}

.process-step-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-2);
}

.process-step-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ===== 分隔线 ===== */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gray-200), transparent);
  margin: var(--space-16) 0;
}

/* ===== 渐变背景区 ===== */
.bg-gray {
  background: var(--color-gray-50);
}

.bg-gradient-light {
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

/* ===== 丰富渐变色系 ===== */
:root {
  /* 多彩渐变 */
  --gradient-ocean: linear-gradient(135deg, #0ea5e9 0%, #2563eb 50%, #7c3aed 100%);
  --gradient-sunset: linear-gradient(135deg, #f97316 0%, #ec4899 50%, #8b5cf6 100%);
  --gradient-forest: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #3b82f6 100%);
  --gradient-royal: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --gradient-aurora: linear-gradient(135deg, #06b6d4 0%, #3b82f6 33%, #8b5cf6 66%, #ec4899 100%);
  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #f97316 50%, #ef4444 100%);
  --gradient-mint: linear-gradient(135deg, #34d399 0%, #06b6d4 100%);
  --gradient-coral: linear-gradient(135deg, #fb7185 0%, #f97316 100%);
  --gradient-sky: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
  --gradient-purple: linear-gradient(135deg, #a78bfa 0%, #7c3aed 100%);

  /* 彩色背景色 */
  --color-teal-50: #f0fdfa;
  --color-teal-500: #14b8a6;
  --color-indigo-50: #eef2ff;
  --color-indigo-500: #6366f1;
  --color-violet-50: #f5f3ff;
  --color-violet-500: #8b5cf6;
  --color-pink-50: #fdf2f8;
  --color-pink-500: #ec4899;
  --color-orange-50: #fff7ed;
  --color-orange-500: #f97316;
  --color-rose-50: #fff1f2;
  --color-rose-500: #f43f5e;
  --color-emerald-50: #ecfdf5;
  --color-emerald-500: #10b981;
}

/* ===== 渐变背景区 ===== */
.bg-gradient-ocean {
  background: var(--gradient-ocean);
  color: var(--color-white);
}

.bg-gradient-aurora {
  background: var(--gradient-aurora);
  color: var(--color-white);
}

.bg-gradient-mesh {
  background-color: #f8fafc;
  background-image:
    radial-gradient(at 20% 20%, rgba(59, 130, 246, 0.08) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(139, 92, 246, 0.06) 0px, transparent 50%),
    radial-gradient(at 0% 80%, rgba(6, 182, 212, 0.06) 0px, transparent 50%),
    radial-gradient(at 80% 80%, rgba(236, 72, 153, 0.04) 0px, transparent 50%);
}

.bg-gradient-warm {
  background-color: #fffbeb;
  background-image:
    radial-gradient(at 20% 30%, rgba(249, 115, 22, 0.06) 0px, transparent 50%),
    radial-gradient(at 80% 70%, rgba(236, 72, 153, 0.04) 0px, transparent 50%);
}

.bg-gradient-cool {
  background-color: #f0f9ff;
  background-image:
    radial-gradient(at 30% 20%, rgba(14, 165, 233, 0.06) 0px, transparent 50%),
    radial-gradient(at 70% 80%, rgba(99, 102, 241, 0.05) 0px, transparent 50%);
}

/* ===== 渐变图标变体 ===== */
.icon-gradient-blue {
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(59, 130, 246, 0.4);
}

.icon-gradient-cyan {
  background: linear-gradient(135deg, #06b6d4, #0891b2);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(6, 182, 212, 0.4);
}

.icon-gradient-green {
  background: linear-gradient(135deg, #10b981, #059669);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(16, 185, 129, 0.4);
}

.icon-gradient-purple {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(139, 92, 246, 0.4);
}

.icon-gradient-amber {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(245, 158, 11, 0.4);
}

.icon-gradient-red {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(239, 68, 68, 0.4);
}

.icon-gradient-pink {
  background: linear-gradient(135deg, #ec4899, #db2777);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(236, 72, 153, 0.4);
}

.icon-gradient-indigo {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(99, 102, 241, 0.4);
}

.icon-gradient-teal {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(20, 184, 166, 0.4);
}

.icon-gradient-orange {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: var(--color-white);
  box-shadow: 0 8px 24px -4px rgba(249, 115, 22, 0.4);
}

/* ===== 渐变文字 ===== */
.text-gradient-ocean {
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-sunset {
  background: var(--gradient-sunset);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-royal {
  background: var(--gradient-royal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-forest {
  background: var(--gradient-forest);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 渐变边框卡片 ===== */
.card-gradient-border {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-normal);
}

.card-gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  padding: 2px;
  background: var(--gradient-aurora);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card-gradient-border:hover::before {
  opacity: 1;
}

.card-gradient-border:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* ===== 玻璃拟态卡片 ===== */
.glass-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

/* ===== 彩色装饰光斑 ===== */
.decor-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.decor-blob-blue {
  background: #3b82f6;
}

.decor-blob-purple {
  background: #8b5cf6;
}

.decor-blob-pink {
  background: #ec4899;
}

.decor-blob-cyan {
  background: #06b6d4;
}

.decor-blob-orange {
  background: #f97316;
}

/* ===== 合作伙伴Logo墙 ===== */
.partner-section {
  padding: var(--space-16) 0;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-400);
  transition: all var(--transition-normal);
  padding: var(--space-4);
}

.partner-logo:hover {
  border-color: var(--color-primary-200);
  color: var(--color-primary-600);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ===== 客户案例卡片 ===== */
.case-card {
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  background: var(--color-white);
  transition: all var(--transition-normal);
}

.case-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.case-card-banner {
  height: 160px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.case-card-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(0, 0, 0, 0.1));
}

.case-card-body {
  padding: var(--space-6);
}

.case-card-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.case-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-2);
}

.case-card-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.case-card-stats {
  display: flex;
  gap: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-100);
}

.case-stat-value {
  font-size: var(--text-xl);
  font-weight: 800;
}

.case-stat-label {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

/* ===== 新闻资讯卡片 ===== */
.news-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
  transition: all var(--transition-normal);
}

a.news-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.news-card-banner {
  height: 180px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  overflow: hidden;
}

.news-card-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.15));
}

.news-card-date {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-gray-700);
  z-index: 1;
}

.news-card-category {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1;
}

.news-card-body {
  padding: var(--space-6);
}

.news-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-2);
  line-height: 1.4;
  transition: color var(--transition-fast);
}

.news-card:hover .news-card-title {
  color: var(--color-primary-600);
}

.news-card-excerpt {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-100);
}

/* ===== FAQ 手风琴 ===== */
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.faq-item:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-sm);
}

.faq-item.active {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-md);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-navy-800);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary-600);
}

.faq-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.faq-item.active .faq-icon {
  background: var(--color-primary-600);
  color: var(--color-white);
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 var(--space-6);
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 var(--space-6) var(--space-5);
}

.faq-answer p {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* ===== 客户评价/证言卡片 ===== */
.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  padding: var(--space-8);
  transition: all var(--transition-normal);
  position: relative;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: 48px;
  line-height: 1;
  font-family: Georgia, serif;
  margin-bottom: var(--space-4);
}

.testimonial-text {
  font-size: var(--text-base);
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-white);
  flex-shrink: 0;
}

.testimonial-name {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-navy-800);
}

.testimonial-role {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

.testimonial-rating {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-4);
}

.testimonial-rating svg {
  width: 18px;
  height: 18px;
}

/* ===== 套餐/定价卡片 ===== */
.pricing-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  padding: var(--space-8);
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border: 2px solid var(--color-primary-600);
  box-shadow: var(--shadow-blue);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-aurora);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}

.pricing-name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-2);
}

.pricing-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-6);
}

.pricing-price {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-navy-800);
  margin-bottom: var(--space-1);
}

.pricing-price .unit {
  font-size: var(--text-base);
  color: var(--color-gray-400);
  font-weight: 500;
}

.pricing-period {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--space-6);
}

.pricing-features {
  margin-bottom: var(--space-8);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  padding: var(--space-2) 0;
}

.pricing-features li svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
}

.pricing-features li.disabled {
  color: var(--color-gray-300);
}

.pricing-features li.disabled svg {
  color: var(--color-gray-300);
}

/* ===== 团队成员卡片 ===== */
.team-card {
  text-align: center;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  padding: var(--space-8) var(--space-6);
  transition: all var(--transition-normal);
}

.team-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.team-avatar {
  width: 96px;
  height: 96px;
  margin: 0 auto var(--space-4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-white);
}

.team-name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-1);
}

.team-role {
  font-size: var(--text-sm);
  color: var(--color-primary-600);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.team-bio {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ===== 服务承诺卡片 ===== */
.promise-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-normal);
}

.promise-card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-md);
}

.promise-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.promise-icon svg {
  width: 24px;
  height: 24px;
}

.promise-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy-800);
  margin-bottom: var(--space-1);
}

.promise-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ===== 特色标签 ===== */
.feature-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.feature-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

/* ===== 数据条形图 ===== */
.data-bar {
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  overflow: hidden;
  position: relative;
}

.data-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

/* ===== 滚动入场动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .footer-brand { grid-column: 1 / -1; }
  .hero-title { font-size: var(--text-5xl); }
  .section-title { font-size: var(--text-3xl); }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-white);
    padding: var(--space-6);
    gap: var(--space-2);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
    border-bottom: 1px solid var(--color-gray-100);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    width: 100%;
    padding: var(--space-3) var(--space-4);
  }

  .nav-link::after,
  .nav-link.active::after {
    display: none;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-2);
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .grid-5 {
    grid-template-columns: 1fr;
  }

  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-card-stats {
    flex-direction: column;
    gap: var(--space-3);
  }

  .hero-title {
    font-size: var(--text-4xl);
  }

  .hero-desc {
    font-size: var(--text-base);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-6);
  }

  .hero-stat-value {
    font-size: var(--text-3xl);
  }

  .section-title {
    font-size: var(--text-2xl);
  }

  .cta-box {
    padding: var(--space-10) var(--space-6);
  }

  .cta-title {
    font-size: var(--text-2xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
  .footer-bottom span { font-size: 11px; line-height: 1.6; }

  .page-banner h1 {
    font-size: var(--text-3xl);
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    padding-left: var(--space-16);
    padding-right: 0;
  }

  .timeline-item:nth-child(even) {
    left: 0;
    padding: 0 0 var(--space-12) var(--space-16);
  }

  .timeline-dot {
    left: 11px !important;
    right: auto !important;
  }

  .module-card {
    flex-direction: column;
  }

  .about-intro-grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }

  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }

  .form-row {
    grid-template-columns: 1fr !important;
  }

  .arch-grid {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}

@media (max-width: 480px) {
  .arch-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-6);
  }
}

/* ===== 真实图片图标（替换 SVG 后） ===== */
.icon-photo {
  padding: 0 !important;
  overflow: hidden;
  background: var(--color-gray-100) !important;
}

.icon-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.icon-photo svg {
  width: 46px;
  height: 46px;
  stroke: var(--color-primary-600);
  stroke-width: 1.8;
  fill: none;
}

/* ===== 大图（行业方案 / 客户案例 / 新闻资讯 banner） ===== */
.industry-img {
  height: 170px;
  margin: -32px -32px 24px;
  overflow: hidden;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.industry-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-normal);
}

.industry-img svg {
  width: 100%;
  height: 100%;
  display: block;
}

.card:hover .industry-img img {
  transform: scale(1.05);
}

.case-card-banner img,
.news-card-banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform var(--transition-normal);
}

.case-card-banner svg,
.news-card-banner svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.case-card:hover .case-card-banner img,
.news-card:hover .news-card-banner img {
  transform: scale(1.05);
}

.news-card-date,
.news-card-category {
  z-index: 2;
}

/* ===== 微信二维码 ===== */
.wechat-qr {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.wechat-qr:hover {
  box-shadow: var(--shadow-md);
}

.wechat-qr img {
  width: 100%;
  height: auto;
  display: block;
}

.wechat-qr-sm {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
}

.wechat-qr-md {
  width: 140px;
  height: 140px;
}

.wechat-qr-lg {
  width: 180px;
  height: 180px;
}

.wechat-qr-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.wechat-qr-card .qr-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-navy-800);
}

.wechat-qr-card .qr-desc {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

.wechat-qr-dual {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: flex-start;
  gap: var(--space-6);
  width: 100%;
}

.wechat-qr-dual .wechat-qr {
  width: 120px;
  height: 120px;
}

.wechat-qr-dual .qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.wechat-qr-dual .qr-item .qr-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy-800);
}

.wechat-qr-dual .qr-item .qr-sub {
  font-size: 12px;
  color: var(--color-gray-400);
}

/* ===== 二维码悬停浮层 ===== */
.qr-hover {
  position: relative;
}

.qr-popover {
  position: absolute;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-100);
  padding: var(--space-5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  z-index: 100;
}

.qr-hover:hover .qr-popover,
.qr-hover:focus-within .qr-popover {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* 导航栏「免费咨询」向下展开，右对齐避免溢出视口 */
.nav-cta-wrap {
  position: relative;
}

.nav-cta-wrap .qr-popover {
  top: calc(100% + 14px);
  right: 0;
  transform: translateY(8px);
}

.nav-cta-wrap:hover .qr-popover,
.nav-cta-wrap:focus-within .qr-popover {
  transform: translateY(0);
}

/* 页脚微信图标向上展开 */
.footer-social .qr-hover .qr-popover {
  bottom: calc(100% + 14px);
  left: 0;
  transform: translateY(-8px);
}

.footer-social .qr-hover:hover .qr-popover,
.footer-social .qr-hover:focus-within .qr-popover {
  transform: translateY(0);
}

@media (max-width: 768px) {
  .qr-popover {
    padding: var(--space-4);
  }
}

.contact-info-card .wechat-qr-sm {
  flex-shrink: 0;
  margin-left: auto;
}

.cta-with-qr {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-10);
  align-items: center;
}

@media (max-width: 768px) {
  .cta-with-qr {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .cta-with-qr .wechat-qr-card {
    margin: 0 auto;
  }

  .contact-info-card .wechat-qr-sm {
    margin-left: 0;
    margin-top: var(--space-3);
  }
}

/* ===== Hero 浅色版（WorkBuddy 风格迁移）===== */
.hero--light {
  background: #ffffff;
  min-height: auto;
}

.hero--light .hero-bg::before {
  background:
    radial-gradient(ellipse at 15% 0%, rgba(59, 130, 246, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
}

.hero--light .hero-bg::after {
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
}

.hero--light .hero-orb {
  opacity: 0.25;
}

.hero--light .hero-badge {
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
  color: var(--color-primary-700);
}

.hero--light .hero-badge::before {
  background: var(--color-primary-600);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.hero--light .hero-title {
  color: var(--color-navy-900);
}

.hero--light .hero-title .highlight {
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero--light .hero-desc {
  color: var(--color-gray-500);
}

.hero--light .hero-stats {
  border-top: 1px solid var(--color-gray-100);
}

.hero--light .hero-stat-value {
  color: var(--color-navy-900);
}

.hero--light .hero-stat-value .unit {
  color: var(--color-primary-600);
}

.hero--light .hero-stat-label {
  color: var(--color-gray-500);
}

/* Hero 左右分栏 */
.hero-content--split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-16);
  align-items: center;
  min-width: 0;
}

.hero-content--split > * {
  min-width: 0;
}

.hero-tip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-primary-100);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
}

.hero-tip svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* 右侧产品视觉 */
.hero-visual {
  position: relative;
  padding: var(--space-8);
}

.hero-visual-frame {
  position: relative;
  border: none;
  border-radius: var(--radius-2xl);
  padding: 0;
  background: none;
  box-shadow: none;
  animation: float 9s ease-in-out infinite;
}

/* 看板背后的彩色光晕 */
.hero-visual-frame::before {
  content: '';
  position: absolute;
  inset: -8% -5%;
  background:
    radial-gradient(52% 52% at 72% 18%, rgba(37, 99, 235, 0.30), transparent 70%),
    radial-gradient(46% 46% at 18% 88%, rgba(14, 165, 233, 0.20), transparent 70%);
  filter: blur(10px);
  z-index: -1;
}

.mes-board {
  position: relative;
  background: linear-gradient(165deg, #0b1220 0%, #111c36 55%, #0b1220 100%);
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow:
    0 32px 64px -24px rgba(2, 6, 23, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
  color: #e2e8f0;
}

/* 柔光扫过看板 */
.mes-board::before {
  content: '';
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(148, 197, 255, 0.07), transparent);
  transform: skewX(-12deg);
  animation: boardShine 7s ease-in-out infinite;
  pointer-events: none;
}

/* 右上角蓝色辉光 */
.mes-board::after {
  content: '';
  position: absolute;
  top: -48px;
  right: -48px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 65%);
  pointer-events: none;
}

.mes-board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.mes-board-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: 0.5px;
}

.mes-board-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: #34d399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.28);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.mes-board-live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
  animation: pulse 2s ease-in-out infinite;
}

.mes-board-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.mes-board-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-2);
  text-align: center;
}

.mes-board-label {
  display: block;
  font-size: var(--text-xs);
  color: #94a3b8;
  margin-bottom: 4px;
}

.mes-board-num {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #ffffff, #bfdbfe);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mes-board-delta {
  display: inline-block;
  margin-top: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
}

.mes-board-delta.up {
  color: #34d399;
}

.mes-board-chart {
  display: flex;
  align-items: flex-end;
  gap: 7px;
  height: 96px;
  padding-top: var(--space-3);
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  position: relative;
}

/* 图表横向参考网格线 */
.mes-board-chart::before {
  content: '';
  position: absolute;
  top: var(--space-3);
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(to top, rgba(148, 163, 184, 0.10) 0 1px, transparent 1px 24%);
  pointer-events: none;
}

.mes-board-chart .bar {
  flex: 1;
  min-width: 0;
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, #38bdf8, #2563eb);
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.22);
  transform-origin: bottom;
  animation: boardBarGrow 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: var(--d, 0s);
}

.mes-board-chart .bar:nth-child(even) {
  background: linear-gradient(180deg, #5eead4, #0ea5e9);
  box-shadow: 0 0 14px rgba(94, 234, 212, 0.18);
}

/* 工单进度列表 */
.mes-board-foot {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.mes-board-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-xs);
  color: #cbd5e1;
}

.mes-board-row-name {
  flex: 0 0 126px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.mes-board .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mes-board .dot-green { background: #34d399; }
.mes-board .dot-blue { background: #38bdf8; }
.mes-board .dot-amber { background: #fbbf24; }

.mes-board-row-bar {
  flex: 1;
  height: 5px;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.18);
  overflow: hidden;
}

.mes-board-row-bar span {
  display: block;
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, #2563eb, #38bdf8);
  width: var(--w, 0%);
  animation: boardRowGrow 1.1s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: 0.55s;
}

.mes-board-row-val {
  flex: 0 0 34px;
  text-align: right;
  color: #e2e8f0;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* 看板动画关键帧 */
@keyframes boardBarGrow {
  from {
    transform: scaleY(0);
    opacity: 0;
  }
  to {
    transform: scaleY(1);
    opacity: 1;
  }
}

@keyframes boardRowGrow {
  from { width: 0; }
  to { width: var(--w, 0%); }
}

@keyframes boardShine {
  0% { left: -60%; }
  55%, 100% { left: 130%; }
}

@media (prefers-reduced-motion: reduce) {
  .mes-board::before,
  .mes-board-chart .bar,
  .mes-board-row-bar span {
    animation: none;
  }
}

/* 浮动标签 */
.hero-float {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
  animation: float 6s ease-in-out infinite;
}

.hero-float::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.hero-float-1 {
  top: 14px;
  left: -14px;
  background: rgba(11, 18, 32, 0.88);
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, 0.32);
}

.hero-float-1::before { background: #10b981; }

.hero-float-2 {
  bottom: 26px;
  right: -12px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--color-navy-800);
  border: 1px solid rgba(148, 163, 184, 0.35);
  animation-delay: 2.5s;
}

.hero-float-2::before { background: #f59e0b; }

/* 响应式 */
@media (max-width: 1024px) {
  .hero-content--split {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-10);
  }
  .hero-visual {
    width: 100%;
    max-width: 560px;
    overflow: hidden;
  }
}

@media (max-width: 768px) {
  .hero--light .hero-title {
    font-size: var(--text-4xl);
  }
  .hero-desc {
    font-size: var(--text-base);
  }
  .hero-visual {
    padding: 0;
  }
  .hero-float {
    display: none;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .mes-board {
    padding: var(--space-4);
  }
  .mes-board-grid {
    gap: var(--space-2);
  }
  .mes-board-item {
    padding: var(--space-2);
  }
  .mes-board-num {
    font-size: var(--text-lg);
  }
}

/* ===== 回到顶部按钮 ===== */
.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 900;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-700));
  color: #fff;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-normal);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
}

.back-to-top:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 768px) {
  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 46px;
    height: 46px;
  }
}

/* ===== 文章详情页 ===== */
.article-layout {
  max-width: 820px;
  margin: 0 auto;
}

.article-hero {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: var(--space-6) 0 var(--space-6);
  box-shadow: var(--shadow-md);
  aspect-ratio: 800 / 340;
}

.article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-gray-100);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.article-meta .article-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  font-weight: 600;
  font-size: var(--text-xs);
}

.article-body {
  font-size: var(--text-lg);
  line-height: 1.9;
  color: var(--color-gray-700);
}

.article-body h2 {
  margin: var(--space-8) 0 var(--space-4);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-navy-800);
  padding-left: 14px;
  border-left: 4px solid var(--color-primary-600);
}

.article-body h3 {
  margin: var(--space-6) 0 var(--space-3);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-navy-800);
}

.article-body p {
  margin-bottom: var(--space-4);
}

.article-body ul,
.article-body ol {
  margin: 0 0 var(--space-4) var(--space-4);
}

.article-body li {
  margin-bottom: var(--space-2);
}

.article-body strong {
  color: var(--color-navy-800);
}

.article-body a {
  color: var(--color-primary-600);
  text-decoration: underline;
  text-decoration-color: var(--color-primary-200);
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--color-primary-700);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-5) 0;
  font-size: var(--text-base);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-body th {
  background: var(--color-primary-600);
  color: var(--color-white);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
}

.article-body td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-gray-100);
}

.article-body tr:last-child td {
  border-bottom: none;
}

.article-tip {
  background: var(--color-primary-50);
  border-left: 4px solid var(--color-primary-500);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-5) 0;
  font-size: var(--text-base);
  color: var(--color-navy-800);
}

.article-related {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: var(--color-gray-50);
  border-radius: var(--radius-xl);
}

.article-related h4 {
  margin-bottom: var(--space-4);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy-800);
}

.article-related a {
  display: block;
  padding: 10px 0;
  color: var(--color-primary-600);
  font-weight: 600;
  border-bottom: 1px dashed var(--color-gray-200);
}

.article-related a:last-child {
  border-bottom: none;
}

.article-related a:hover {
  color: var(--color-primary-700);
}

@media (max-width: 768px) {
  .article-body {
    font-size: var(--text-base);
    line-height: 1.8;
  }

  .article-body table {
    font-size: 13px;
  }

  .article-body th,
  .article-body td {
    padding: 8px 10px;
  }
}

/* ===== WorkBuddy × MES AI 融合区块（浅色 hero 居中版） ===== */
.ai-fusion {
  /* 纵向渐变：顶部衔接上一区块白底，底部回到白底，中间承载青绿水彩 */
  background: linear-gradient(180deg,
    #ffffff 0%,
    #f6faf8 18%,
    #eef7f2 45%,
    #e9f5ef 58%,
    #f4faf7 80%,
    #ffffff 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
  /* 硬裁剪：把光晕等所有绘制限制在区块边界内，避免真机上背景/光晕溢出错位 */
  contain: paint;
  isolation: isolate;
}

/* index 页：下一区块是灰底（gray-50），底部渐变直接融入灰色 */
.ai-fusion.ai-fusion-to-gray {
  background: linear-gradient(180deg,
    #ffffff 0%,
    #f6faf8 16%,
    #eef7f2 40%,
    #e9f5ef 55%,
    #f2f6f4 78%,
    var(--color-gray-50) 100%);
}

.ai-fusion::before {
  content: '';
  position: absolute;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 152, 236, 0.1) 0%, rgba(46, 158, 148, 0.08) 45%, transparent 72%);
  pointer-events: none;
}

.ai-fusion::after {
  content: '';
  position: absolute;
  bottom: -220px;
  left: -160px;
  width: 520px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 158, 139, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.ai-hero {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.ai-hero-eyebrow {
  font-size: 16px;
  color: var(--color-gray-500);
  letter-spacing: 0.04em;
}

.ai-hero-title {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.18;
  font-weight: 800;
  margin-top: var(--space-6);
  letter-spacing: -0.01em;
}

.ai-hero-title .ai-t-a {
  display: inline-block;
  background: linear-gradient(90deg, #1f6fe0 0%, #2aa1c8 55%, #1f9e8b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.ai-hero-title .ai-t-b {
  display: inline-block;
  color: var(--color-gray-900);
}

.ai-hero-sub {
  max-width: 620px;
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: var(--color-gray-500);
  line-height: 1.8;
}

.ai-hero-cta {
  margin-top: var(--space-9);
}

.ai-btn-dark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 34px;
  border-radius: 999px;
  background: var(--color-gray-900);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 600;
  transition: transform 0.25s ease, background 0.25s ease;
}

.ai-btn-dark:hover {
  background: #1e293b;
  transform: translateY(-2px);
}

.ai-btn-arrow {
  display: inline-block;
  transition: transform 0.25s ease;
}

.ai-btn-dark:hover .ai-btn-arrow {
  transform: translateX(4px);
}

.ai-hero-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: var(--space-12);
  width: 100%;
}

.ai-stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: var(--space-4) var(--space-6);
  border-left: 1px solid var(--color-gray-200);
}

.ai-stat-item:first-child {
  border-left: none;
}

.ai-stat-num {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.01em;
}

.ai-stat-sub {
  font-size: 14px;
  color: var(--color-gray-500);
}

@media (max-width: 768px) {
  .ai-hero {
    padding-inline: 20px;
  }
  .ai-fusion::before {
    width: 460px;
    height: 360px;
    top: -120px;
  }
  .ai-fusion::after {
    width: 300px;
    height: 260px;
    bottom: -120px;
    left: -90px;
  }
  .ai-hero-stats {
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-8);
  }
  .ai-stat-item {
    border-left: none;
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--space-4) 0;
  }
  .ai-stat-item:last-child {
    border-bottom: none;
  }
}
/* 浅色底上的 ghost 按钮（.btn-ghost 默认白字，适配浅色背景） */
.ai-fusion .btn-ghost {
  color: var(--color-primary-700);
  border-color: var(--color-primary-300);
  background: transparent;
}

.ai-fusion .btn-ghost:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-400);
}

/* ===== FAQ 问答页 ===== */
.faq-group {
  max-width: 860px;
  margin: 0 auto var(--space-10);
}

.faq-group-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-gray-900);
  padding-left: 14px;
  border-left: 3px solid var(--color-primary-500);
  margin-bottom: var(--space-4);
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg, 12px);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item[open] {
  border-color: var(--color-primary-300);
  box-shadow: 0 6px 20px -8px rgba(37, 99, 235, 0.18);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 56px 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-gray-900);
  position: relative;
  line-height: 1.6;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '';
  position: absolute;
  right: 22px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--color-primary-500);
  border-bottom: 2px solid var(--color-primary-500);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.faq-item p {
  padding: 0 22px 20px;
  font-size: var(--text-base);
  color: var(--color-gray-600);
  line-height: 1.9;
}

@media (max-width: 768px) {
  .faq-item summary {
    padding: 16px 48px 16px 18px;
    font-size: 15px;
  }
  .faq-item summary::after {
    top: 24px;
    right: 18px;
  }
}