/* ============================================
   睿芯集成电路 - 企业官网样式表
   Author: Ricore IC Web Team
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  /* 主色调 - 深蓝系 */
  --primary-900: #0a1628;
  --primary-800: #0f2847;
  --primary-700: #143a66;
  --primary-600: #1a4d85;
  --primary-500: #1f5fa4;
  --primary-400: #2d7dd2;
  --primary-300: #5ba0e0;
  --primary-200: #9cc8ed;
  --primary-100: #cde2f5;
  --primary-50: #eaf2fa;

  /* 中性色 */
  --gray-900: #1a1a2e;
  --gray-800: #2d2d44;
  --gray-700: #4a4a6a;
  --gray-600: #6b6b8a;
  --gray-500: #8c8caa;
  --gray-400: #adadbf;
  --gray-300: #cdcdd5;
  --gray-200: #e5e5eb;
  --gray-100: #f2f2f7;
  --gray-50: #f8f9fc;

  /* 功能色 */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;

  /* 背景色 */
  --bg-white: #ffffff;
  --bg-light: #f8f9fc;
  --bg-dark: #0a1628;

  /* 文字色 */
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-tertiary: #8c8caa;
  --text-white: #ffffff;
  --text-light: #cde2f5;

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #0a1628 0%, #1a4d85 50%, #2d7dd2 100%);
  --gradient-hero: linear-gradient(135deg, #071020 0%, #0f2847 30%, #1a4d85 70%, #2d7dd2 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8f9fc 100%);

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.05);
  --shadow-md: 0 4px 12px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 8px 24px rgba(10, 22, 40, 0.12);
  --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
  --shadow-card: 0 2px 8px rgba(10, 22, 40, 0.06);
  --shadow-card-hover: 0 12px 32px rgba(26, 77, 133, 0.15);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

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

  /* 过渡 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* 容器 */
  --container-max: 1280px;
  --container-padding: 24px;
}

/* ---------- 重置样式 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--primary-500);
}

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

/* ---------- 通用容器 ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-narrow {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---------- 按钮样式 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1.5;
}

.btn-primary {
  background: var(--primary-500);
  color: var(--text-white);
  border-color: var(--primary-500);
}

.btn-primary:hover {
  background: var(--primary-600);
  border-color: var(--primary-600);
  color: var(--text-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(31, 95, 164, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--text-white);
}

.btn-outline {
  background: transparent;
  color: var(--primary-500);
  border-color: var(--primary-300);
}

.btn-outline:hover {
  background: var(--primary-50);
  border-color: var(--primary-500);
  color: var(--primary-600);
}

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

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

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

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn i {
  font-size: 14px;
}

/* ---------- 页面章节 ---------- */
.section {
  padding: var(--space-24) 0;
}

.section-light {
  background-color: var(--bg-light);
}

.section-dark {
  background-color: var(--primary-900);
  color: var(--text-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3 {
  color: var(--text-white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: var(--space-4);
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-dark .section-subtitle {
  color: var(--text-light);
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  border-bottom-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-800);
  letter-spacing: -0.5px;
}

.navbar-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

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

.navbar-logo-text span:first-child {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-800);
}

.navbar-logo-text span:last-child {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-tertiary);
  letter-spacing: 1px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-nav a {
  display: block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 400;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

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

.navbar-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--primary-500);
  border-radius: 50%;
}

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

.navbar-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
}

.navbar-menu-btn:hover {
  background: var(--gray-100);
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-nav a {
  display: block;
  padding: 16px 20px;
  font-size: 18px;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.mobile-menu-nav a:hover,
.mobile-menu-nav a.active {
  background: var(--primary-50);
  color: var(--primary-600);
}

.mobile-menu .btn {
  width: 100%;
  margin-top: var(--space-6);
  justify-content: center;
}

/* ---------- Hero 区域 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(45, 125, 210, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(91, 160, 224, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

/* 电路纹理背景 */
.hero-circuit {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.06;
  pointer-events: none;
}

.hero-circuit::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 5%;
  width: 300px;
  height: 300px;
  border: 2px solid white;
  border-radius: 50%;
  transform: rotate(45deg);
}

.hero-circuit::after {
  content: '';
  position: absolute;
  bottom: 20%;
  right: 10%;
  width: 200px;
  height: 200px;
  border: 2px solid white;
  transform: rotate(45deg);
}

.hero-badge {
  position: absolute;
  top: 100px;
  right: var(--container-padding);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: white;
  font-size: 13px;
  z-index: 2;
}

.hero-badge i {
  color: var(--primary-300);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: var(--primary-200);
  font-size: 14px;
  margin-bottom: var(--space-8);
  backdrop-filter: blur(10px);
}

.hero-tag i {
  font-size: 12px;
}

.hero-title {
  font-size: 52px;
  font-weight: 700;
  color: white;
  line-height: 1.2;
  margin-bottom: var(--space-6);
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 24px;
  font-weight: 500;
  color: var(--primary-200);
  margin-bottom: var(--space-6);
}

.hero-desc {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: var(--space-10);
  max-width: 640px;
}

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

.hero-visual {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  height: 80%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.3;
}

/* 芯片视觉 */
.chip-visual {
  position: relative;
  width: 360px;
  height: 360px;
}

.chip-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
  border-radius: var(--radius-lg);
  box-shadow: 0 0 60px rgba(45, 125, 210, 0.5);
}

.chip-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.chip-ring:nth-child(1) {
  width: 180px;
  height: 180px;
  animation: pulse-ring 3s ease-in-out infinite;
}

.chip-ring:nth-child(2) {
  width: 260px;
  height: 260px;
  animation: pulse-ring 3s ease-in-out infinite 0.5s;
}

.chip-ring:nth-child(3) {
  width: 340px;
  height: 340px;
  animation: pulse-ring 3s ease-in-out infinite 1s;
}

@keyframes pulse-ring {
  0%, 100% {
    opacity: 0.3;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.6;
    transform: translate(-50%, -50%) scale(1.05);
  }
}

/* 数据流线条 */
.data-lines {
  position: absolute;
  width: 100%;
  height: 100%;
}

.data-line {
  position: absolute;
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--primary-300), transparent);
  animation: data-flow 2s linear infinite;
}

@keyframes data-flow {
  0% {
    opacity: 0;
    transform: translateY(-20px);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(20px);
  }
}

/* ---------- 卡片组件 ---------- */
.card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--primary-100);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-5);
}

.card-icon.primary {
  background: var(--primary-50);
  color: var(--primary-500);
}

.card-icon.blue {
  background: linear-gradient(135deg, #dbeafe, #e0f2fe);
  color: #2563eb;
}

.card-icon.green {
  background: linear-gradient(135deg, #d1fae5, #dcfce7);
  color: #059669;
}

.card-icon.purple {
  background: linear-gradient(135deg, #ede9fe, #f3e8ff);
  color: #7c3aed;
}

.card-icon.orange {
  background: linear-gradient(135deg, #ffedd5, #fed7aa);
  color: #ea580c;
}

.card-icon.teal {
  background: linear-gradient(135deg, #ccfbf1, #cffafe);
  color: #0d9488;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.card-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 三栏布局 */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

/* ---------- 特性列表 ---------- */
.feature-list {
  margin-top: var(--space-5);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--gray-100);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li i {
  color: var(--primary-500);
  margin-top: 4px;
  font-size: 12px;
  flex-shrink: 0;
}

/* ---------- 数据展示 ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.stat-item {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}

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

.stat-number {
  font-size: 44px;
  font-weight: 700;
  color: var(--primary-600);
  margin-bottom: var(--space-2);
  line-height: 1;
  letter-spacing: -1px;
}

.stat-number sup {
  font-size: 20px;
  top: -16px;
}

.stat-label {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.stat-icon {
  font-size: 28px;
  color: var(--primary-400);
  margin-bottom: var(--space-4);
}

/* ---------- CTA 区块 ---------- */
.cta-section {
  text-align: center;
  margin-top: var(--space-12);
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--primary-500);
  transition: gap var(--transition-base);
}

.cta-link:hover {
  gap: 12px;
  color: var(--primary-600);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--primary-900);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-5);
}

.footer-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
}

.footer-logo-text {
  font-size: 18px;
  font-weight: 600;
  color: white;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-5);
}

.footer-col h4 {
  color: white;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-300);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact i {
  color: var(--primary-400);
  margin-top: 4px;
  flex-shrink: 0;
  font-size: 14px;
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom-text {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom-links a:hover {
  color: var(--primary-300);
}

/* ---------- 内部页面 Hero ---------- */
.page-hero {
  background: var(--gradient-hero);
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 30% 50%, rgba(45, 125, 210, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.page-hero-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: var(--primary-200);
  margin-bottom: var(--space-5);
}

.page-hero-breadcrumb a:hover {
  color: white;
}

.page-hero-title {
  font-size: 42px;
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-4);
  letter-spacing: -0.5px;
}

.page-hero-desc {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---------- 产品页面 ---------- */
.product-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.product-image-placeholder {
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
  border-radius: var(--radius-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-image-placeholder::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(26, 77, 133, 0.3);
}

.product-image-placeholder::after {
  content: 'D35';
  position: absolute;
  font-size: 48px;
  font-weight: 700;
  color: white;
  letter-spacing: 4px;
  z-index: 1;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.product-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: var(--primary-50);
  color: var(--primary-600);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
}

.product-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: var(--space-5);
  letter-spacing: -0.5px;
}

.product-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}

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

/* 架构图 */
.architecture-section {
  background: var(--bg-light);
}

.architecture-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.arch-block {
  background: white;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-base);
}

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

.arch-block.highlight {
  border-color: var(--primary-300);
  background: linear-gradient(145deg, white, var(--primary-50));
}

.arch-icon {
  font-size: 36px;
  color: var(--primary-500);
  margin-bottom: var(--space-4);
}

.arch-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.arch-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.arch-arrow {
  font-size: 24px;
  color: var(--primary-300);
  text-align: center;
}

/* 规格表 */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-8);
  background: white;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.spec-table th,
.spec-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
}

.spec-table th {
  background: var(--primary-50);
  font-weight: 600;
  color: var(--primary-700);
  font-size: 15px;
}

.spec-table td {
  font-size: 14px;
  color: var(--text-secondary);
}

.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table tr:hover td {
  background: var(--gray-50);
}

.spec-table .spec-category {
  font-weight: 600;
  color: var(--text-primary);
  width: 25%;
}

/* ---------- 技术研究页 ---------- */
.paper-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-10);
}

.paper-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--space-6);
  align-items: start;
  padding: var(--space-6);
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-base);
}

.paper-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
}

.paper-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-200);
  line-height: 1;
}

.paper-venue {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-600);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.paper-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

.paper-abstract {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.paper-badge {
  padding: 6px 12px;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #92400e;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

/* 数据流原理图 */
.dfd-principle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  margin-top: var(--space-12);
}

.dfd-diagram {
  background: white;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}

.dfd-visual {
  aspect-ratio: 4/3;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dfd-flow {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  width: 80%;
}

.dfd-node {
  background: white;
  border: 2px solid var(--primary-300);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary-700);
  position: relative;
}

.dfd-node::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 14px;
  background: var(--primary-300);
}

.dfd-node:last-child::after {
  display: none;
}

.dfd-content h3 {
  font-size: 28px;
  margin-bottom: var(--space-5);
}

.dfd-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-5);
}

.dfd-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.dfd-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.dfd-feature i {
  color: var(--success);
  font-size: 16px;
}

/* ---------- 解决方案页 ---------- */
.solution-block {
  padding: var(--space-24) 0;
}

.solution-block:nth-child(even) {
  background: var(--bg-light);
}

.solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.solution-block:nth-child(even) .solution-content {
  direction: rtl;
}

.solution-block:nth-child(even) .solution-content > * {
  direction: ltr;
}

.solution-visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  color: var(--primary-600);
  position: relative;
  overflow: hidden;
}

.solution-visual::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.15'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.solution-text h3 {
  font-size: 32px;
  margin-bottom: var(--space-5);
}

.solution-text .solution-tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--primary-50);
  color: var(--primary-600);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.solution-pain {
  margin-bottom: var(--space-6);
}

.solution-pain h4 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.solution-pain ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.solution-pain li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.solution-pain li i {
  color: var(--error);
  font-size: 12px;
  margin-top: 4px;
  flex-shrink: 0;
}

.solution-value h4 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: var(--space-3);
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-100);
  font-size: 14px;
  color: var(--text-secondary);
}

.value-item i {
  color: var(--success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---------- 关于页面 ---------- */
.about-hero-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-5);
}

.about-visual {
  aspect-ratio: 1;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.about-visual::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
}

.about-visual-icon {
  font-size: 64px;
  color: white;
  z-index: 1;
}

/* 首席科学家 */
.chief-scientist {
  background: var(--bg-light);
}

.scientist-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-10);
  align-items: center;
  background: white;
  padding: var(--space-10);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-card);
}

.scientist-avatar {
  width: 280px;
  height: 320px;
  background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.scientist-avatar i {
  font-size: 80px;
  color: var(--primary-500);
}

.scientist-avatar-name {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary-800);
}

.scientist-info h3 {
  font-size: 28px;
  margin-bottom: var(--space-2);
}

.scientist-title {
  font-size: 16px;
  color: var(--primary-600);
  font-weight: 500;
  margin-bottom: var(--space-5);
}

.scientist-bio {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.scientist-bio p {
  margin-bottom: var(--space-4);
}

/* 时间线 */
.timeline {
  position: relative;
  padding-left: 40px;
  margin-top: var(--space-10);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--gray-200);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

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

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 4px;
  width: 26px;
  height: 26px;
  background: white;
  border: 3px solid var(--primary-400);
  border-radius: 50%;
}

.timeline-year {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-600);
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.timeline-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 联系信息卡 */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.contact-card {
  background: white;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: all var(--transition-base);
}

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

.contact-card-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-50);
  color: var(--primary-500);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto var(--space-4);
}

.contact-card h4 {
  font-size: 18px;
  margin-bottom: var(--space-3);
}

.contact-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- 投资者关系页 ---------- */
.investor-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.highlight-card {
  background: white;
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: all var(--transition-base);
  border-top: 3px solid var(--primary-400);
}

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

.highlight-icon {
  font-size: 32px;
  color: var(--primary-500);
  margin-bottom: var(--space-4);
}

.highlight-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.highlight-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 融资进展 */
.funding-progress {
  margin-top: var(--space-10);
}

.funding-timeline {
  display: flex;
  justify-content: space-between;
  position: relative;
  padding: var(--space-8) 0;
}

.funding-timeline::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gray-200);
  transform: translateY(-50%);
}

.funding-round {
  position: relative;
  text-align: center;
  z-index: 1;
  background: var(--bg-light);
  padding: 0 var(--space-4);
}

.funding-round-dot {
  width: 20px;
  height: 20px;
  background: var(--primary-500);
  border-radius: 50%;
  margin: 0 auto var(--space-3);
  border: 4px solid white;
  box-shadow: 0 0 0 2px var(--primary-500);
}

.funding-round-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.funding-round-date {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* 表单 */
.form-section {
  background: white;
  padding: var(--space-12);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-card);
  margin-top: var(--space-12);
}

.form-title {
  font-size: 28px;
  text-align: center;
  margin-bottom: var(--space-2);
}

.form-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--space-10);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-group label .required {
  color: var(--error);
  margin-left: 4px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  background: white;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(31, 95, 164, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-submit {
  text-align: center;
  margin-top: var(--space-8);
}

.form-submit .btn {
  min-width: 200px;
}

/* 表单成功状态 */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-12);
}

.form-success i {
  font-size: 48px;
  color: var(--success);
  margin-bottom: var(--space-4);
}

.form-success h3 {
  font-size: 24px;
  margin-bottom: var(--space-3);
}

.form-success p {
  color: var(--text-secondary);
}

/* ---------- 动画 ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式设计 ---------- */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .hero-title {
    font-size: 42px;
  }

  .product-overview {
    gap: var(--space-8);
  }

  .architecture-diagram {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

  .scientist-card {
    grid-template-columns: 200px 1fr;
    gap: var(--space-8);
    padding: var(--space-8);
  }

  .scientist-avatar {
    width: 200px;
    height: 240px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 20px;
  }

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

  .section-title {
    font-size: 28px;
  }

  .section-subtitle {
    font-size: 16px;
  }

  .navbar-nav {
    display: none;
  }

  .navbar-actions .btn {
    display: none;
  }

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

  .mobile-menu {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 80px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-visual {
    display: none;
  }

  .hero-badge {
    top: 90px;
    font-size: 12px;
    padding: 8px 14px;
  }

  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .stat-item {
    padding: var(--space-6) var(--space-4);
  }

  .stat-number {
    font-size: 32px;
  }

  .stat-label {
    font-size: 13px;
  }

  .page-hero {
    padding: 120px 0 60px;
  }

  .page-hero-title {
    font-size: 32px;
  }

  .page-hero-desc {
    font-size: 16px;
  }

  .product-overview {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .product-title {
    font-size: 28px;
  }

  .dfd-principle {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .paper-item {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .paper-num {
    font-size: 20px;
  }

  .paper-badge {
    justify-self: start;
  }

  .solution-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .solution-block:nth-child(even) .solution-content {
    direction: ltr;
  }

  .solution-visual {
    aspect-ratio: 16/10;
    font-size: 60px;
  }

  .about-hero-section {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .scientist-card {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-6);
  }

  .scientist-avatar {
    width: 100%;
    max-width: 240px;
    margin: 0 auto;
  }

  .contact-cards {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .investor-highlights {
    grid-template-columns: 1fr;
  }

  .funding-timeline {
    flex-direction: column;
    gap: var(--space-6);
    padding: 0;
  }

  .funding-timeline::before {
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    height: auto;
    transform: translateX(-50%);
  }

  .funding-round {
    padding: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .form-section {
    padding: var(--space-8) var(--space-6);
  }

  .form-title {
    font-size: 24px;
  }

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

  .hero-actions {
    flex-direction: column;
  }

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

  .product-actions {
    flex-direction: column;
  }

  .product-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .section-title {
    font-size: 24px;
  }

  .page-hero-title {
    font-size: 28px;
  }

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

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

  .dfd-features {
    grid-template-columns: 1fr;
  }
}

/* ---------- 滚动条美化 ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ---------- 选中文本样式 ---------- */
::selection {
  background: var(--primary-200);
  color: var(--primary-900);
}

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none !important; }

/* ---------- 配图相关样式 ---------- */

/* Hero背景图 */
.hero-with-bg {
  position: relative;
}

.hero-with-bg::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  background-image: url('../images/hero-main.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  pointer-events: none;
  z-index: 1;
}

.hero-with-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, rgba(7, 16, 32, 0.95) 0%, rgba(15, 40, 71, 0.7) 50%, rgba(26, 77, 133, 0.3) 100%);
  pointer-events: none;
  z-index: 1;
}

/* 内页Hero背景图 */
.page-hero-with-bg {
  position: relative;
  overflow: hidden;
}

.page-hero-with-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/page-hero-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  pointer-events: none;
}

/* 卡片配图 */
.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  margin-bottom: var(--space-4);
  margin-left: calc(-1 * var(--space-5));
  margin-right: calc(-1 * var(--space-5));
  margin-top: calc(-1 * var(--space-5));
  width: calc(100% + 2 * var(--space-5));
}

.card-image + .card-icon {
  display: none;
}

/* 方案区配图 */
.solution-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  position: absolute;
  top: 0;
  left: 0;
}

/* 产品主图 */
.product-main-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* 章节配图容器 */
.section-image-container {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}

/* CTA背景图 */
.section-dark-cta {
  position: relative;
  overflow: hidden;
}

.section-dark-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/cta-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  pointer-events: none;
}

.section-dark-cta .container {
  position: relative;
  z-index: 2;
}

/* 场景卡片顶部图 */
.scene-card-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  margin: calc(-1 * var(--space-5)) calc(-1 * var(--space-5)) var(--space-4);
  width: calc(100% + 2 * var(--space-5));
}

/* 关于页公司图 */
.about-section-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* 技术架构图 */
.tech-diagram-image {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  margin: 0 auto var(--space-8);
}

/* 投资者关系配图 */
.investor-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

/* 时间线背景图 */
.timeline-section {
  position: relative;
  overflow: hidden;
}

.timeline-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/about-timeline.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  pointer-events: none;
}

.timeline-section .container {
  position: relative;
  z-index: 2;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .hero-with-bg::after {
    width: 100%;
    opacity: 0.2;
  }
  
  .card-image,
  .scene-card-image {
    height: 140px;
  }
}

/* 产品图覆盖占位效果 */
.product-image-placeholder .product-main-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  border-radius: var(--radius-2xl);
}

/* 关于页图容器 */
.about-visual {
  position: relative;
  aspect-ratio: 4/3;
}

.about-section-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

/* 架构图容器 */
.dfd-visual {
  position: relative;
  text-align: center;
}

.tech-diagram-image {
  width: 100%;
  max-width: 700px;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}