/* ==========================================================================
   康医汇 SaaS 官网设计系统 v1.0
   ========================================================================== */

/* ==================== CSS 变量 ==================== */
:root {
  /* 主色调 */
  --primary-900: #0f2942;
  --primary-800: #1a365d;
  --primary-700: #1e4d8c;
  --primary-600: #2563eb;
  --primary-500: #3b82f6;
  --primary-400: #60a5fa;
  --primary-300: #93c5fd;
  --primary-100: #dbeafe;
  --primary-50:  #eff6ff;

  /* 辅助色 */
  --accent-green: #22c55e;
  --accent-green-dark: #16a34a;
  --accent-orange: #f59e0b;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-red: #ef4444;

  /* 中性色 */
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50:  #f8fafc;
  --white:    #ffffff;

  /* 语义色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-dark: #0f2942;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-inverse: #ffffff;
  --border-color: #e5e7eb;

  /* 字体 */
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 24px rgba(37,99,235,0.25);

  /* 间距 */
  --space-section: 80px;
  --container-max: 1200px;

  /* 过渡 */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

img {
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

/* ==================== 容器 ==================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==================== 排版 ==================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary-900);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.375rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

.text-mono { font-family: var(--font-mono); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-gradient {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-green {
  background: linear-gradient(135deg, var(--accent-green), #4ade80);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==================== 区块 ==================== */
.section {
  padding: var(--space-section) 0;
}

.section-sm {
  padding: 48px 0;
}

.section-gray {
  background: var(--bg-secondary);
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-inverse);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary-600);
  background: var(--primary-50);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
  font-family: inherit;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover {
  background: var(--primary-700);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-cta {
  background: var(--accent-green);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(34,197,94,0.3);
}

.btn-cta:hover {
  background: var(--accent-green-dark);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(34,197,94,0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-600);
  border-color: var(--gray-300);
}

.btn-outline:hover {
  background: var(--primary-50);
  border-color: var(--primary-400);
  color: var(--primary-700);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--gray-100);
  color: var(--text-primary);
}

.btn-white {
  background: var(--white);
  color: var(--primary-800);
  box-shadow: var(--shadow-sm);
}

.btn-white:hover {
  background: var(--gray-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==================== 导航栏 ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

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

.navbar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 12px 0 4px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-900);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.navbar-logo span:last-child {
  white-space: nowrap;
}

.navbar-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.navbar-menu a {
  padding: 6px 10px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.navbar-menu a:hover {
  color: var(--primary-600);
  background: var(--primary-50);
}

.navbar-menu a.active {
  color: var(--primary-700);
  font-weight: 600;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
  padding: 4px;
}

/* ==================== Hero ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  overflow: hidden;
  background-image: url('../img/bg-ecosystem.png'), linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 50%, var(--primary-700) 100%);
  background-size: cover, cover;
  background-position: center, center;
  background-repeat: no-repeat, no-repeat;
  background-blend-mode: overlay, normal;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(34,197,94,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--white);
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.5rem;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #60a5fa, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  max-width: 600px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat {
  text-align: left;
}

.hero-stat .num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  display: block;
}

.hero-stat .label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ==================== 数据卡片 ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: -60px;
  position: relative;
  z-index: 10;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  border-top: 4px solid var(--primary-600);
}

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

.stat-card:nth-child(2) { border-top-color: var(--accent-green); }
.stat-card:nth-child(3) { border-top-color: var(--accent-orange); }
.stat-card:nth-child(4) { border-top-color: var(--accent-purple); }

.stat-card .stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 16px;
  background: var(--primary-50);
}

.stat-card .stat-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-800);
  line-height: 1;
  white-space: nowrap;
}

.stat-card .stat-suffix {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.stat-card .stat-label {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ==================== 模块矩阵 ==================== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.module-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-600);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.module-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

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

.module-card .module-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.module-card .module-icon.blue { background: var(--primary-50); color: var(--primary-600); }
.module-card .module-icon.green { background: #dcfce7; color: var(--accent-green-dark); }
.module-card .module-icon.orange { background: #fef3c7; color: #d97706; }
.module-card .module-icon.purple { background: #f3e8ff; color: #7c3aed; }
.module-card .module-icon.cyan { background: #cffafe; color: #0891b2; }
.module-card .module-icon.red { background: #fee2e2; color: #dc2626; }

.module-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.module-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.module-card .module-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.module-card .module-tag {
  font-size: 0.8125rem;
  padding: 4px 12px;
  background: var(--gray-100);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
}

.module-card .module-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--primary-600);
}

.module-card .module-link:hover {
  color: var(--primary-700);
  gap: 10px;
}

/* ==================== 特性列表 ==================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  align-items: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-item .feature-check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-green);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  margin-top: 2px;
}

.feature-item h4 {
  font-size: 1.0625rem;
  margin-bottom: 4px;
}

.feature-item p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.feature-image {
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.feature-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ==================== 定价 ==================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pricing-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

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

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

.pricing-card.featured::after {
  content: '推荐';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-600);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: var(--radius-full);
}

.pricing-card .plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-bottom: 8px;
}

.pricing-card .plan-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pricing-card .plan-price {
  margin-bottom: 24px;
}

.pricing-card .plan-price .amount {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-800);
}

.pricing-card .plan-price .period {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.pricing-card .plan-features {
  text-align: left;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-card .plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.pricing-card .plan-features li::before {
  content: '\2713';
  color: var(--accent-green);
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-card .plan-features li.disabled {
  color: var(--gray-400);
}

.pricing-card .plan-features li.disabled::before {
  color: var(--gray-300);
  content: '\2715';
}

/* ==================== 案例卡片 ==================== */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

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

.case-card .case-image {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.9);
}

.case-card .case-body {
  padding: 24px;
}

.case-card .case-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.case-card .case-tag.hospital { background: var(--primary-50); color: var(--primary-600); }
.case-card .case-tag.clinic { background: #dcfce7; color: var(--accent-green-dark); }
.case-card .case-tag.chain { background: #fef3c7; color: #d97706; }

.case-card h4 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.case-card .case-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.case-card .case-stats {
  display: flex;
  gap: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.case-card .case-stat .num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-600);
}

.case-card .case-stat .label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Logo墙 */
.logo-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-top: 48px;
  opacity: 0.6;
}

.logo-wall .logo-item {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 12px 24px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--white);
}

/* ==================== CTA 区块 ==================== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-800), var(--primary-600));
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section h2 {
  color: var(--white);
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
}

.cta-section .cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==================== Footer ==================== */
.footer {
  background: var(--primary-900);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .navbar-logo {
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer-brand .footer-contact {
  font-size: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col h5 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9375rem;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}

.footer-bottom .footer-links {
  display: flex;
  gap: 24px;
}

/* ==================== 表单 ==================== */
.form-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  margin: 0 auto;
}

.form-card.wide {
  max-width: 640px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group label .required {
  color: var(--accent-red);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  font-family: inherit;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--text-primary);
  transition: var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.form-control::placeholder {
  color: var(--gray-400);
}

.input-group {
  display: flex;
  gap: 0;
}

.input-group .form-control {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .btn {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  white-space: nowrap;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.form-check input {
  margin-top: 3px;
}

.form-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.form-divider::before,
.form-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* ==================== 页面头部 ==================== */
.page-header {
  background: linear-gradient(135deg, var(--primary-900), var(--primary-700));
  color: var(--white);
  padding: 140px 0 64px;
  text-align: center;
}

.page-header h1 {
  color: var(--white);
  font-size: 2.75rem;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.8);
  max-width: 640px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.875rem;
  margin-top: 16px;
  color: rgba(255,255,255,0.6);
}

.breadcrumb a {
  color: rgba(255,255,255,0.8);
}

/* ==================== 用户中心 ==================== */
.dashboard-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 0;
  min-height: calc(100vh - 68px);
  margin-top: 68px;
}

.dashboard-sidebar {
  background: var(--white);
  border-right: 1px solid var(--border-color);
  padding: 24px 0;
  position: sticky;
  top: 68px;
  height: calc(100vh - 68px);
  overflow-y: auto;
}

.dashboard-sidebar .sidebar-header {
  padding: 0 24px 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.dashboard-sidebar .sidebar-header .org-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-900);
}

.dashboard-sidebar .sidebar-header .plan-badge {
  font-size: 0.75rem;
  padding: 2px 10px;
  background: var(--primary-50);
  color: var(--primary-600);
  border-radius: var(--radius-full);
  margin-top: 4px;
  display: inline-block;
}

.dashboard-sidebar .sidebar-menu {
  padding: 0 12px;
}

.dashboard-sidebar .sidebar-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  margin-bottom: 2px;
}

.dashboard-sidebar .sidebar-menu a:hover {
  background: var(--gray-50);
  color: var(--text-primary);
}

.dashboard-sidebar .sidebar-menu a.active {
  background: var(--primary-50);
  color: var(--primary-700);
  font-weight: 600;
}

.dashboard-sidebar .sidebar-menu .icon {
  width: 20px;
  text-align: center;
  font-size: 1.125rem;
}

.dashboard-main {
  padding: 32px;
  background: var(--bg-secondary);
}

.dashboard-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.dashboard-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.dashboard-card .card-header h3 {
  font-size: 1.125rem;
}

/* ==================== 表格 ==================== */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  padding: 12px 16px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  font-size: 0.9375rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
  background: var(--gray-50);
}

/* ==================== 徽章 ==================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-info    { background: var(--primary-100); color: var(--primary-700); }
.badge-gray    { background: var(--gray-100); color: var(--text-secondary); }

/* ==================== 动画 ==================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.animate-fadeInUp { animation: fadeInUp 0.6s ease forwards; }
.animate-fadeIn { animation: fadeIn 0.6s ease forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }

/* 滚动渐入 */
.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; }

/* ==========================================================================
   v2.0 高级质感增强 - 玻璃态/光效/渐变网格/动画
   ========================================================================== */

/* ==================== 高级渐变背景 ==================== */
.gradient-mesh {
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(37,99,235,0.08), transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 100%, rgba(34,197,94,0.06), transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(139,92,246,0.04), transparent 60%),
    var(--bg-primary);
}

.gradient-mesh-dark {
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(37,99,235,0.15), transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 100%, rgba(34,197,94,0.10), transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(139,92,246,0.08), transparent 60%),
    var(--primary-900);
}

/* 噪点纹理 */
.noise-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

/* ==================== 玻璃态卡片 ==================== */
.glass-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
  transition: var(--transition);
}

.glass-card:hover {
  background: rgba(255,255,255,0.85);
  box-shadow: 0 12px 40px rgba(0,0,0,0.10);
  transform: translateY(-4px);
}

.glass-card-dark {
  background: rgba(15,41,66,0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

/* ==================== 光效动画 ==================== */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(37,99,235,0.3); }
  50% { box-shadow: 0 0 40px rgba(37,99,235,0.5); }
}

@keyframes orbit {
  from { transform: rotate(0deg) translateX(120px) rotate(0deg); }
  to { transform: rotate(360deg) translateX(120px) rotate(-360deg); }
}

@keyframes count-bounce {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

@keyframes ripple {
  0% { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(4); opacity: 0; }
}

@keyframes border-flow {
  0%, 100% { border-image-source: linear-gradient(0deg, var(--primary-600), var(--accent-cyan)); }
  50% { border-image-source: linear-gradient(180deg, var(--accent-purple), var(--primary-600)); }
}

/* 闪光文本 */
.shimmer-text {
  background: linear-gradient(90deg, var(--text-primary) 0%, var(--primary-500) 25%, var(--text-primary) 50%, var(--primary-500) 75%, var(--text-primary) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}

/* 动态渐变文字 */
.gradient-text-animated {
  background: linear-gradient(135deg, var(--primary-600), var(--accent-cyan), var(--accent-purple), var(--primary-600));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 6s ease infinite;
}

/* 光晕效果 */
.glow-blue { box-shadow: 0 0 30px rgba(37,99,235,0.2), 0 0 60px rgba(37,99,235,0.1); }
.glow-green { box-shadow: 0 0 30px rgba(34,197,94,0.2), 0 0 60px rgba(34,197,94,0.1); }
.glow-purple { box-shadow: 0 0 30px rgba(139,92,246,0.2), 0 0 60px rgba(139,92,246,0.1); }

/* ==================== 高级卡片 ==================== */
.premium-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.premium-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary-600), var(--accent-cyan), var(--accent-purple));
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.premium-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(37,99,235,0.05) 0%, transparent 70%);
  border-radius: 50%;
  transition: var(--transition);
  pointer-events: none;
}

.premium-card:hover {
  border-color: var(--primary-300);
  box-shadow: 0 20px 60px rgba(0,0,0,0.10);
  transform: translateY(-8px);
}

.premium-card:hover::before {
  opacity: 1;
  animation: shimmer 3s linear infinite;
}

.premium-card:hover::after {
  background: radial-gradient(circle, rgba(37,99,235,0.10) 0%, transparent 70%);
}

/* 带渐变边框的卡片 */
.gradient-border-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  z-index: 1;
}

.gradient-border-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-cyan), var(--accent-purple));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

/* ==================== AI引擎展示 ==================== */
.ai-showcase {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  background: linear-gradient(135deg, #0a1929 0%, #0f2942 30%, #1a365d 60%, #1e4d8c 100%);
}

.ai-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(37,99,235,0.15), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(139,92,246,0.12), transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(6,182,212,0.08), transparent 50%);
  pointer-events: none;
}

.ai-orbit-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  aspect-ratio: 1;
}

.ai-orbit-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
  z-index: 10;
  box-shadow: 0 0 60px rgba(37,99,235,0.4), 0 0 100px rgba(37,99,235,0.2);
  animation: glow-pulse 3s ease infinite;
}

.ai-orbit-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.ai-orbit-ring.r1 { width: 240px; height: 240px; }
.ai-orbit-ring.r2 { width: 360px; height: 360px; }
.ai-orbit-ring.r3 { width: 480px; height: 480px; }

.ai-orbit-item {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 56px;
  height: 56px;
  margin: -28px 0 0 -28px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: rgba(255,255,255,0.9);
}

.ai-orbit-item.i1 { animation: orbit 20s linear infinite; }
.ai-orbit-item.i2 { animation: orbit 30s linear infinite reverse; }
.ai-orbit-item.i3 { animation: orbit 25s linear infinite; animation-delay: -5s; }
.ai-orbit-item.i4 { animation: orbit 35s linear infinite reverse; animation-delay: -10s; }
.ai-orbit-item.i5 { animation: orbit 28s linear infinite; animation-delay: -14s; }
.ai-orbit-item.i6 { animation: orbit 32s linear infinite reverse; animation-delay: -7s; }

/* AI能力列表 */
.ai-capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-capability-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.ai-capability-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.ai-capability-card .ai-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-600), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.ai-capability-card h4 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.ai-capability-card p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ==================== 数据安全 ==================== */
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.security-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.security-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-green), var(--primary-500));
  transform: scaleX(0);
  transition: var(--transition);
}

.security-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--primary-300);
}

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

.security-card .security-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  background: linear-gradient(135deg, var(--primary-50), var(--gray-50));
}

.security-card h4 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.security-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 安全盾牌 */
.security-shield {
  position: relative;
  display: inline-block;
  padding: 40px;
}

.security-shield .shield-ring {
  position: absolute;
  border: 2px solid var(--accent-green);
  border-radius: 50%;
  opacity: 0.2;
}

.security-shield .shield-ring.r1 { inset: 0; }
.security-shield .shield-ring.r2 { inset: 15px; opacity: 0.15; }
.security-shield .shield-ring.r3 { inset: 30px; opacity: 0.1; }

/* ==================== 效率对比 ==================== */
.efficiency-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
}

.compare-column {
  border-radius: var(--radius-lg);
  padding: 40px;
}

.compare-column.before {
  background: var(--gray-50);
  border: 1px solid var(--border-color);
}

.compare-column.after {
  background: linear-gradient(135deg, var(--primary-50), #dcfce7);
  border: 1px solid var(--primary-100);
}

.compare-column h4 {
  font-size: 1.25rem;
  margin-bottom: 24px;
  text-align: center;
}

.compare-column.before h4 { color: var(--text-muted); }
.compare-column.after h4 { color: var(--primary-700); }

.compare-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.compare-item:last-child { border-bottom: none; }

.compare-item .label { font-size: 0.9375rem; color: var(--text-secondary); }
.compare-item .value { font-family: var(--font-mono); font-weight: 700; font-size: 1.125rem; }
.compare-column.before .value { color: var(--accent-red); }
.compare-column.after .value { color: var(--accent-green-dark); }

.compare-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-cyan));
  color: white;
  font-size: 1.5rem;
  box-shadow: var(--shadow-md);
}

/* ==================== 技术架构 ==================== */
.architecture-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.arch-layer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 32px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: default;
}

.arch-layer:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.arch-layer .arch-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  color: white;
}

.arch-layer .arch-content h4 {
  font-size: 1.0625rem;
  margin-bottom: 2px;
}

.arch-layer .arch-content p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.arch-layer.l1 { background: linear-gradient(135deg, #dbeafe, #eff6ff); }
.arch-layer.l1 .arch-icon { background: var(--primary-600); }
.arch-layer.l2 { background: linear-gradient(135deg, #dcfce7, #f0fdf4); }
.arch-layer.l2 .arch-icon { background: var(--accent-green-dark); }
.arch-layer.l3 { background: linear-gradient(135deg, #fef3c7, #fffbeb); }
.arch-layer.l3 .arch-icon { background: #d97706; }
.arch-layer.l4 { background: linear-gradient(135deg, #f3e8ff, #faf5ff); }
.arch-layer.l4 .arch-icon { background: var(--accent-purple); }
.arch-layer.l5 { background: linear-gradient(135deg, #cffafe, #ecfeff); }
.arch-layer.l5 .arch-icon { background: var(--accent-cyan); }
.arch-layer.l6 { background: linear-gradient(135deg, #e0e7ff, #eef2ff); }
.arch-layer.l6 .arch-icon { background: #4f46e5; }

/* ==================== 资质证书墙 ==================== */
.certificate-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.certificate-badge {
  text-align: center;
  padding: 24px 12px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.certificate-badge:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--primary-300);
}

.certificate-badge .cert-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-50), var(--gray-50));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.certificate-badge .cert-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.certificate-badge .cert-sub {
  font-size: 0.6875rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ==================== 时间线 ==================== */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary-600), var(--accent-cyan), var(--accent-purple));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
  padding-left: 32px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--primary-600);
  box-shadow: 0 0 0 4px var(--primary-50);
}

.timeline-item .timeline-date {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--primary-600);
  margin-bottom: 4px;
}

.timeline-item h4 {
  font-size: 1.0625rem;
  margin-bottom: 6px;
}

.timeline-item p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==================== 数字看板 ==================== */
.big-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.big-stat {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  transition: var(--transition);
}

.big-stat:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
}

.big-stat .big-num {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #93c5fd);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.big-stat .big-label {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.6);
  margin-top: 8px;
}

/* ==================== 模块交互增强 ==================== */
.module-card-pro {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
}

.module-card-pro .module-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--primary-50) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.module-card-pro:hover {
  border-color: var(--primary-300);
  box-shadow: 0 20px 60px rgba(37,99,235,0.12);
  transform: translateY(-8px) scale(1.02);
}

.module-card-pro:hover .module-glow {
  opacity: 1;
}

.module-card-pro .module-content {
  position: relative;
  z-index: 2;
}

/* ==================== 标签栏 ==================== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.tag-cloud .tech-tag {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--gray-50);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition);
}

.tag-cloud .tech-tag:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
  color: var(--primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ==================== 进度条 ==================== */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar .progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--primary-600), var(--accent-cyan));
  position: relative;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-bar .progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 2s linear infinite;
}

/* ==================== 浮动装饰 ==================== */
.float-decoration {
  position: absolute;
  pointer-events: none;
  opacity: 0.6;
}

.float-decoration.fd-1 {
  top: 10%;
  right: 5%;
  width: 120px;
  height: 120px;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(139,92,246,0.05));
  animation: float 6s ease-in-out infinite;
}

.float-decoration.fd-2 {
  bottom: 15%;
  left: 8%;
  width: 80px;
  height: 80px;
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  background: linear-gradient(135deg, rgba(34,197,94,0.08), rgba(6,182,212,0.05));
  animation: float 8s ease-in-out infinite reverse;
}

/* ==================== 步骤流程 ==================== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-300), var(--primary-600), var(--accent-cyan));
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-step .step-num {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-600);
  font-family: var(--font-mono);
  transition: var(--transition);
  position: relative;
}

.process-step:hover .step-num {
  background: var(--primary-600);
  color: var(--white);
  transform: scale(1.1);
  box-shadow: 0 0 30px rgba(37,99,235,0.3);
}

.process-step h4 {
  font-size: 1.0625rem;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==================== 深色区块 ==================== */
.section-dark-pro {
  background: linear-gradient(135deg, #0a1929 0%, #0f2942 50%, #1a365d 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.section-dark-pro::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.08), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.section-dark-pro::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139,92,246,0.06), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.section-dark-pro h2,
.section-dark-pro h3,
.section-dark-pro h4 {
  color: var(--white);
}

.section-dark-pro .section-header p {
  color: rgba(255,255,255,0.7);
}

.section-dark-pro .eyebrow {
  background: rgba(255,255,255,0.1);
  color: var(--primary-300);
}

/* ==================== 渐变分隔线 ==================== */
.gradient-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-300), var(--accent-cyan), var(--primary-300), transparent);
  margin: 48px 0;
  border: none;
}

/* ==================== 认证徽章 ==================== */
.compliance-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.compliance-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  background: var(--white);
  border: 1px solid var(--border-color);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}

.compliance-badge:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--primary-300);
  color: var(--primary-700);
}

.compliance-badge .badge-icon {
  font-size: 1.25rem;
}

/* ==================== 响应式补充 ==================== */
@media (max-width: 992px) {
  .ai-capability-grid { grid-template-columns: repeat(2, 1fr); }
  .security-grid { grid-template-columns: repeat(2, 1fr); }
  .big-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .certificate-wall { grid-template-columns: repeat(3, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
  .efficiency-compare { grid-template-columns: 1fr; }
  .compare-arrow { margin: 0 auto; transform: rotate(90deg); }
}

@media (max-width: 768px) {
  .ai-capability-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .big-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .certificate-wall { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr; }
  .ai-showcase { padding: 32px 20px; }
  .ai-orbit-container { max-width: 300px; }
  .ai-orbit-ring.r3 { display: none; }
  .premium-card { padding: 24px; }
  .timeline { padding-left: 24px; }
}
@media (max-width: 1200px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
}

@media (max-width: 992px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; gap: 32px; }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-layout { grid-template-columns: 1fr; }
  .dashboard-sidebar { display: none; }
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }
  .hero h1 { font-size: 2.5rem; }
}

@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--border-color);
  }

  .navbar-menu.open {
    display: flex;
  }

  .navbar-menu a {
    width: 100%;
    padding: 12px 16px;
  }

  .navbar-toggle {
    display: block;
  }

  .navbar-actions {
    gap: 8px;
  }

  .navbar-actions .btn {
    padding: 8px 16px;
    font-size: 0.875rem;
  }

  .section { padding: 48px 0; }
  .section-header { margin-bottom: 32px; }

  .module-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  .hero { min-height: auto; padding: 120px 0 64px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1.0625rem; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat .num { font-size: 1.5rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .cta-section { padding: 40px 24px; }
  .form-card { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }

  .page-header { padding: 120px 0 48px; }
  .page-header h1 { font-size: 2rem; }
}

@media (max-width: 480px) {
  .container, .container-sm, .container-lg { padding: 0 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

/* ==================== 工具类 ==================== */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-8 { gap: 32px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-white { color: var(--white); }
.text-green { color: var(--accent-green); }
.text-center { text-align: center; }
.w-full { width: 100%; }
.cursor-pointer { cursor: pointer; }
.relative { position: relative; }
.rounded { border-radius: var(--radius-md); }
.rounded-full { border-radius: var(--radius-full); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* ==================== 医疗机构专用智能体 ==================== */
.agent-banner{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;background:linear-gradient(135deg,#0c2d52 0%,#1a4f8f 55%,#1a6dd6 100%);border-radius:20px;padding:36px;color:#fff;position:relative;overflow:hidden;box-shadow:0 12px 32px rgba(12,45,82,0.22)}
.agent-banner::before{content:"";position:absolute;top:-40%;right:-12%;width:380px;height:380px;background:radial-gradient(circle,rgba(255,255,255,0.10),transparent 60%);border-radius:50%;pointer-events:none}
.agent-banner-main{position:relative;z-index:2}
.agent-badge-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.agent-badge{padding:5px 12px;border-radius:999px;background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.22);font-size:0.8125rem;color:#dbeafe;font-weight:500}
.agent-banner-main h3{font-size:1.875rem;font-weight:800;margin-bottom:14px;color:#fff}
.agent-banner-main p{font-size:1rem;line-height:1.8;color:rgba(255,255,255,0.85);margin-bottom:26px}
.agent-banner-actions{display:flex;gap:14px;flex-wrap:wrap}
.agent-banner-spec{position:relative;z-index:2;background:rgba(255,255,255,0.07);border:1px solid rgba(255,255,255,0.14);border-radius:16px;padding:22px;backdrop-filter:blur(6px)}
.agent-spec-title{font-size:0.8125rem;letter-spacing:0.08em;color:#93c5fd;font-weight:600;margin-bottom:14px;text-transform:uppercase}
.agent-spec-item{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,0.14)}
.agent-spec-item:last-child{border-bottom:none}
.agent-spec-item span{font-size:0.8125rem;color:#bfdbfe;flex-shrink:0;padding-top:2px}
.agent-spec-item b{font-size:0.875rem;color:#fff;text-align:right;font-weight:600;line-height:1.5}
.agent-download{background:#fff;border:1px solid #e2e8f0;border-radius:20px;padding:32px;margin-top:48px;box-shadow:0 4px 16px rgba(0,0,0,0.06)}
.agent-dl-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.agent-dl-head h3{font-size:1.375rem;color:#0f172a;margin-bottom:6px}
.agent-dl-head p{color:#64748b;font-size:0.9375rem}
.agent-version-tag{padding:5px 12px;border-radius:999px;background:#dcfce7;color:#15803d;font-size:0.8125rem;font-weight:600;flex-shrink:0}
.agent-dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.agent-dl-card{display:flex;align-items:center;gap:16px;padding:20px;border:1px solid #e2e8f0;border-radius:14px;background:#f8fafc;transition:box-shadow 0.2s,border-color 0.2s}
.agent-dl-card:hover{border-color:#93c5fd;box-shadow:0 6px 16px rgba(37,99,235,0.10)}
.agent-dl-icon{flex-shrink:0;width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem}
.agent-dl-card:nth-child(2) .agent-dl-icon{background:linear-gradient(135deg,#7c3aed,#6d28d9)}
.agent-dl-info{flex:1;min-width:0}
.agent-dl-name{font-weight:700;color:#0f172a;font-size:0.9375rem;margin-bottom:4px}
.agent-dl-badge{padding:2px 8px;border-radius:6px;background:#dbeafe;color:#1d4ed8;font-size:0.75rem;font-weight:600;vertical-align:1px}
.agent-dl-card:nth-child(2) .agent-dl-badge{background:#ede9fe;color:#6d28d9}
.agent-dl-desc{font-size:0.8125rem;color:#64748b;margin-bottom:4px}
.agent-dl-meta{font-size:0.75rem;color:#94a3b8;font-family:'JetBrains Mono',monospace}
.agent-dl-note{margin-top:18px;padding:12px 16px;background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;color:#1e40af;font-size:0.8125rem;line-height:1.7}
@media(max-width:900px){.agent-banner{grid-template-columns:1fr;padding:28px 22px}.agent-dl-grid{grid-template-columns:1fr}.agent-banner-main h3{font-size:1.5rem}}
@media(max-width:560px){.agent-dl-card{flex-direction:column;align-items:flex-start}.agent-dl-card .btn{width:100%}}