/* ===== 全局变量 ===== */
:root {
  --primary: #1a3fff;
  --primary-dark: #0a2acc;
  --primary-light: #4d6fff;
  --primary-bg: #EEF2FF;
  --accent: #2563eb;
  --text-dark: #0f172a;
  --text-mid: #334155;
  --text-light: #64748b;
  --bg-white: #ffffff;
  --bg-light: #f8faff;
  --bg-dark: #0a1628;
  --border: #e2e8f0;
  --shadow-sm: 0 2px 8px rgba(26, 63, 255, 0.08);
  --shadow-md: 0 8px 32px rgba(26, 63, 255, 0.12);
  --shadow-lg: 0 20px 60px rgba(26, 63, 255, 0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* ===== 容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(26, 63, 255, 0.08);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 1.2rem;
}

.logo-img {
  height: 32px;
}

.logo-cdcc {
  color: var(--primary);
  font-weight: 900;
  letter-spacing: 1px;
}

.logo-text {
  color: var(--text-dark);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-mid);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:not(.btn-nav):hover {
  color: var(--primary);
}

.nav-links a:not(.btn-nav)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.nav-links a:not(.btn-nav):hover::after {
  transform: scaleX(1);
}

.btn-nav {
  background: var(--primary);
  color: white !important;
  padding: 10px 24px;
  border-radius: 100px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
}

.btn-nav:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(26, 63, 255, 0.3);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 63, 255, 0.35);
}

.btn-primary.large {
  padding: 16px 40px;
  font-size: 1.05rem;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: white;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.6);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: white;
}

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: white;
  padding: 16px 40px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1.05rem;
  border: 2px solid rgba(255, 255, 255, 0.5);
  transition: all var(--transition);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: white;
}

/* ===== 通用 Section 头部 ===== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-tag.light {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-title.light {
  color: white;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
}

.section-desc.light {
  color: rgba(255, 255, 255, 0.75);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/banner.png') center/cover no-repeat;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(26, 63, 255, 0.4) 0%, transparent 70%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to bottom, transparent, rgba(10, 22, 40, 0.6));
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  animation: float linear infinite;
}

@keyframes float {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 2fr 2fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
  padding-top: 40px;
  padding-bottom: 80px;
}

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

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  color: white;
}

.hero-title-ai {
  display: inline-block;
  background: linear-gradient(135deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-right: 8px;
}

.hero-title-main {
  color: white;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
  line-height: 1.6;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
  justify-content: flex-end;
}

.tag {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.9);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
}

.booth-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.booth-img {
  max-height: 500px;
  object-fit: contain;
  filter: drop-shadow(0 20px 60px rgba(26, 63, 255, 0.5));
  animation: float-booth 4s ease-in-out infinite;
}

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

  50% {
    transform: translateY(-16px);
  }
}

.booth-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(26, 63, 255, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }

  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.75rem;
  letter-spacing: 2px;
  z-index: 2;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255, 255, 255, 0.4);
  border-bottom: 2px solid rgba(255, 255, 255, 0.4);
  transform: rotate(45deg);
  animation: bounce-down 1.5s ease-in-out infinite;
}

@keyframes bounce-down {
  0%, 100% {
    transform: rotate(45deg) translateY(0);
  }

  50% {
    transform: rotate(45deg) translateY(6px);
  }
}

/* ===== 政策区域 ===== */
.policy-section {
  padding: 100px 0;
  background: var(--bg-light);
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.policy-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.policy-icon {
  flex-shrink: 0;
}

.policy-icon svg {
  width: 48px;
  height: 48px;
}

.policy-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.policy-content p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== 痛点区域 ===== */
.pain-section {
  padding: 100px 0;
  background: white;
}

.pain-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: start;
}

.pain-side-label {
  display: flex;
  flex-direction: column;
  margin-bottom: 28px;
}

.pain-side-label .label-en {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-light);
}

.pain-side-label .label-zh {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
}

.pain-side-label.school .label-zh {
  color: #1e40af;
}

.pain-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pain-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.pain-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.pain-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.pain-num.school-num {
  background: #1e40af;
}

.pain-body h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.pain-body ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pain-body li {
  font-size: 0.875rem;
  color: var(--text-light);
  padding-left: 12px;
  position: relative;
}

.pain-body li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--primary);
}

.pain-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding-top: 80px;
}

.pain-divider-line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, transparent, var(--border), transparent);
}

.pain-divider-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

/* ===== 解决方案 ===== */
.solution-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #0a1628 0%, #0d2060 50%, #1a3fff 100%);
  position: relative;
  overflow: hidden;
}

.solution-section::before {
  content: '';
  position: absolute;
  inset: 0;
  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='0.03'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.highlights-bar {
  display: flex;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  margin-bottom: 60px;
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 1;
}

.highlight-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
}

.highlight-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.2);
  line-height: 1;
}

.highlight-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: white;
}

.highlight-sub {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 2px;
}

.highlight-sep {
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.15);
  margin: 0 24px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.value-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 32px;
  backdrop-filter: blur(10px);
  transition: background var(--transition), transform var(--transition);
}

.value-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.value-icon {
  margin-bottom: 16px;
}

.value-icon svg {
  width: 40px;
  height: 40px;
}

.value-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

.value-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.value-card li {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  padding-left: 16px;
  position: relative;
}

.value-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: rgba(100, 150, 255, 0.8);
}

.value-card strong {
  color: #60a5fa;
}

/* ===== 技术区域 ===== */
.tech-section {
  padding: 100px 0;
  background: var(--bg-light);
}

.tech-block {
  background: white;
  border-radius: var(--radius-lg);
  padding: 56px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.tech-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary), var(--primary-light));
}

.tech-block.reverse::before {
  left: auto;
  right: 0;
}

.tech-label {
  font-size: 5rem;
  font-weight: 900;
  color: var(--primary-bg);
  line-height: 1;
  position: absolute;
  top: 24px;
  right: 40px;
  user-select: none;
}

.tech-block.reverse .tech-label {
  left: auto;
  right: 40px;
}

.tech-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 32px;
  line-height: 1.3;
}

.tech-title .accent {
  color: var(--primary);
}

.tech-subtitle {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 32px;
}

.tech-two-col {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
}

.tech-dim-divider {
  width: 1px;
  background: var(--border);
}

.dim-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.dim-badge.right {
  color: #1e40af;
}

.tech-dim h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.tech-dim p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 24px;
}

.dim-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dim-point {
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 16px;
  border-left: 3px solid var(--primary);
}

.tech-dim.right .dim-point {
  border-left-color: #1e40af;
}

.dp-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.dp-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
}

.model-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.model-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-bg);
}

.model-item {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.model-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  margin-top: 6px;
}

.model-dot.accent {
  background: #1e40af;
}

.model-item strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.model-item p {
  font-size: 0.875rem;
  color: var(--text-light);
  line-height: 1.6;
}

.model-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.model-tag {
  background: var(--primary);
  color: white;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
}

.booth-detail-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}

.booth-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.booth-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.bf-icon {
  flex-shrink: 0;
}

.bf-icon svg {
  width: 32px;
  height: 32px;
}

.bf-body h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.bf-body ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bf-body li {
  font-size: 0.85rem;
  color: var(--text-light);
  padding-left: 12px;
  position: relative;
}

.bf-body li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--primary);
}

.booth-outcomes {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.outcome-card {
  background: var(--primary);
  color: white;
  padding: 16px 28px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  min-width: 140px;
}

.journey-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.journey-step {
  background: var(--primary-bg);
  color: var(--primary);
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid var(--primary-bg);
  transition: all var(--transition);
}

.journey-step.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.journey-arrow {
  color: var(--primary);
  font-weight: 700;
  font-size: 1.1rem;
}

.lifecycle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.lifecycle-card {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
}

.lc-badge {
  display: inline-block;
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.lifecycle-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.lifecycle-card ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.lifecycle-card li {
  font-size: 0.85rem;
  color: var(--text-light);
  padding-left: 12px;
  position: relative;
}

.lifecycle-card li::before {
  content: '○';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.6rem;
  top: 4px;
}

.lifecycle-footer {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-align: center;
  padding: 20px 32px;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 700;
}

/* ===== 功能区域 ===== */
.features-section {
  padding: 100px 0;
  background: white;
}

.user-journey {
  background: linear-gradient(135deg, #f0f4ff, #e8eeff);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 48px;
  border: 1px solid rgba(26, 63, 255, 0.1);
}

.journey-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 24px;
  text-align: center;
}

.journey-timeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.jt-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.jt-icon svg {
  width: 32px;
  height: 32px;
}

.jt-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-mid);
  white-space: nowrap;
}

.jt-arrow {
  color: var(--primary);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.ai-roles {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.role-tag {
  background: var(--primary);
  color: white;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
}

.feature-cards {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.feature-card {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
}

.fc-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 28px 40px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.fc-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.fc-title-wrap h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: white;
  margin-bottom: 4px;
}

.fc-title-wrap p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.fc-body {
  padding: 40px;
}

.fc-advantages {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

.fc-adv {
  background: white;
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  border: 1px solid var(--border);
}

.fc-adv h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.fc-adv ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fc-adv li {
  font-size: 0.875rem;
  color: var(--text-light);
  padding-left: 12px;
  position: relative;
}

.fc-adv li::before {
  content: '●';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.5rem;
  top: 1px;
}

.fc-scenarios {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.fc-scenario {
  background: linear-gradient(135deg, var(--primary-bg), #e0e7ff);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.fc-scenario h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.fc-scenario p {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.6;
}

.fc-body.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.fc-highlight {
  background: white;
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
}

.fch-icon {
  margin-bottom: 12px;
}

.fch-icon svg {
  width: 32px;
  height: 32px;
}

.fc-highlight h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.fc-highlight ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fc-highlight li {
  font-size: 0.85rem;
  color: var(--text-light);
  padding-left: 12px;
  position: relative;
}

.fc-highlight li::before {
  content: '●';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 0.5rem;
  top: 5px;
}

.fc-highlight strong {
  color: var(--primary);
}

.fc-advisor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.advisor-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.af-item {
  background: white;
  border-radius: var(--radius-sm);
  padding: 30px 25px 29px;
  border: 1px solid var(--border);
}

.af-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 15px;
  margin-top: 10px;
}

.af-item p {
  font-size: 0.875rem;
  color: var(--text-light);
  line-height: 1.6;
}

.advisor-scenarios {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.as-item {
  background: white;
  border-radius: var(--radius-sm);
  padding: 20px;
  border-left: 4px solid var(--primary);
}

.as-badge {
  display: inline-block;
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 10px;
}

.as-item ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.as-item li {
  font-size: 0.875rem;
  color: var(--text-light);
  padding-left: 12px;
  position: relative;
}

.as-item li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--primary);
}

.fc-body.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.jc-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.jc-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
}

.jc-subtitle {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
  text-align: center;
}

.jc-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.jc-tags span {
  font-size: 0.9rem;
  color: var(--text-mid);
  font-weight: 500;
}

.jc-tags .sep {
  color: var(--border);
}

.dashboard-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.df-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: white;
  border-radius: var(--radius-sm);
  padding: 20px;
  border: 1px solid var(--border);
}

.df-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.df-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.df-text p {
  font-size: 0.875rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ===== 荣誉区域 ===== */
.honors-section {
  padding: 100px 0;
  background: var(--bg-light);
}

.honors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 80px;
}

.honor-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.honor-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.honor-text {
  font-size: 0.875rem;
  color: var(--text-light);
  line-height: 1.6;
}

.honor-text strong {
  display: block;
  color: var(--text-dark);
  font-weight: 700;
  margin-top: 4px;
}

.honors-image-wrap {
  margin-top: 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.honors-strip-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

.partners-image-wrap {
  margin-top: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.partners-strip-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

.partners-section {}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.partner-logo {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-mid);
  transition: all var(--transition);
  cursor: default;
}

.partner-logo:hover {
  background: var(--primary-bg);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ===== 联系我们 ===== */
.contact-section {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a1628 0%, #0d2060 50%, #1a3fff 100%);
  z-index: 0;
}

.contact-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(100, 150, 255, 0.3) 0%, transparent 60%);
}

.contact-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
  line-height: 1.25;
}

.contact-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
}

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

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-info-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: center;
  backdrop-filter: blur(10px);
}

.cic-icon {
  font-size: 1.5rem;
}

.cic-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.cic-value {
  font-size: 0.95rem;
  color: white;
  font-weight: 600;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-dark);
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand .logo-cdcc {
  color: #60a5fa;
}

.footer-brand .logo-text {
  color: rgba(255, 255, 255, 0.8);
}

.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-links {
  display: flex;
  gap: 60px;
}

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

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer-bottom {
  padding: 20px 0;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.3);
  text-align: center;
}

/* ===== 滚动动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .tech-two-col {
    grid-template-columns: 1fr;
  }

  .tech-dim-divider {
    display: none;
  }

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

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

  .pain-divider {
    flex-direction: row;
    padding-top: 0;
  }

  .pain-divider-line {
    width: auto;
    height: 2px;
    flex: 1;
  }
}

@media (max-width: 768px) {
  .navbar-inner {
    padding: 0 20px;
  }

  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 24px;
    gap: 20px;
    box-shadow: var(--shadow-md);
    z-index: 999;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-right {
    display: none;
  }

  .hero-tags {
    justify-content: center;
  }

  .hero-cta {
    justify-content: center;
  }

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

  .highlights-bar {
    flex-direction: column;
    gap: 20px;
  }

  .highlight-sep {
    display: none;
  }

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

  .tech-block {
    padding: 32px 24px;
  }

  .tech-label {
    font-size: 3rem;
  }

  .booth-detail-grid {
    grid-template-columns: 1fr;
  }

  .booth-outcomes {
    flex-direction: row;
    flex-wrap: wrap;
  }

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

  .fc-body.three-col {
    grid-template-columns: 1fr;
  }

  .fc-body.two-col {
    grid-template-columns: 1fr;
  }

  .fc-scenarios {
    grid-template-columns: 1fr;
  }

  .fc-advisor-grid {
    grid-template-columns: 1fr;
  }

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

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

  .contact-inner {
    grid-template-columns: 1fr;
  }

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

  .footer-links {
    flex-wrap: wrap;
    gap: 32px;
  }

  .section-title {
    font-size: 1.6rem;
  }

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

  .pain-divider {
    display: none;
  }
}

@media (max-width: 480px) {
  .honors-grid {
    grid-template-columns: 1fr;
  }

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

  .journey-timeline {
    gap: 4px;
  }

  .jt-arrow {
    font-size: 0.9rem;
  }
}