/* 
  全新设计系统 - "科技之美·流动空间"
  Design Concept: Flow, Curves, Asymmetry, Bold Whitespace
*/

:root {
  /* 主色调 - 优雅的紫罗兰渐变 */
  --primary: #8B5CF6;
  --primary-light: #A78BFA;
  --primary-dark: #7C3AED;
  --accent: #06B6D4;
  
  /* 背景色 - 浅色主题 */
  --bg-main: #FAFAFA;
  --bg-soft: #F5F5F5;
  --bg-white: #FFFFFF;
  
  /* 文字色 */
  --text-dark: #1A1A2E;
  --text-body: #4A4A68;
  --text-light: #8888A0;
  
  /* 特殊效果 */
  --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #06B6D4 100%);
  --gradient-soft: linear-gradient(180deg, #F8FAFC 0%, #EDE9FE 100%);
  --shadow-soft: 0 4px 20px rgba(139, 92, 246, 0.08);
  --shadow-medium: 0 8px 30px rgba(139, 92, 246, 0.12);
  --shadow-strong: 0 20px 50px rgba(139, 92, 246, 0.15);
  
  /* 动画曲线 */
  --ease-flow: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-main);
  color: var(--text-dark);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

/* 布局系统 */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.section {
  padding: 120px 0;
  position: relative;
}

/* 曲线分隔线 */
.curve-divider {
  position: absolute;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.curve-divider svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 120px;
}

.curve-divider.curve-top {
  top: 0;
}

.curve-divider.curve-bottom {
  bottom: 0;
  transform: rotate(180deg);
}

/* 导航栏 - 浮动设计 */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s var(--ease-flow);
}

.nav-header.scrolled {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-soft);
  padding: 15px 0;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 50px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-body);
  position: relative;
  padding: 5px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s var(--ease-flow);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--gradient-primary);
  color: white !important;
  padding: 12px 28px !important;
  border-radius: 50px;
  font-weight: 600 !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

/* 移动端菜单 */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--text-dark);
  transition: all 0.3s var(--ease-flow);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

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

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 30px;
  z-index: 999;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-dark);
}

/* Hero区域 - 大胆的非对称设计 */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
  z-index: -1;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: 30%;
  left: -30%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
}

.hero-content {
  max-width: 650px;
}

.hero-tag {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 30px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 30px;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-body);
  margin-bottom: 50px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-hero {
  padding: 18px 40px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.4s var(--ease-flow);
  border: none;
}

.btn-primary-full {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

.btn-primary-full:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(139, 92, 246, 0.4);
}

.btn-outline-light {
  background: transparent;
  color: var(--text-dark);
  border: 2px solid var(--text-light);
}

.btn-outline-light:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Hero视觉 - 独特的设计 */
.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 55%;
  max-width: 800px;
}

.hero-image-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
}

.hero-circle {
  position: absolute;
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.hero-circle-1 {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.hero-circle-2 {
  width: 80%;
  height: 80%;
  top: 10%;
  left: 10%;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
  border: 1px solid rgba(6, 182, 212, 0.2);
  animation-delay: -2s;
}

.hero-circle-3 {
  width: 60%;
  height: 60%;
  top: 20%;
  left: 20%;
  background: var(--gradient-primary);
  opacity: 0.1;
  animation-delay: -4s;
}

.hero-float-item {
  position: absolute;
  background: white;
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--shadow-medium);
  animation: float-item 6s ease-in-out infinite;
}

.hero-float-item-1 {
  top: 15%;
  right: 10%;
  animation-delay: -1s;
}

.hero-float-item-2 {
  bottom: 20%;
  left: 5%;
  animation-delay: -3s;
}

.hero-float-item svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes float-item {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

/* 关于我们 - 故事化设计 */
.about-intro {
  position: relative;
  padding: 150px 0;
}

.about-intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, transparent 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 100px;
  align-items: center;
}

.about-number {
  font-size: 8rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.15;
  position: absolute;
  top: -30px;
  left: -20px;
}

.about-visual {
  position: relative;
}

.about-visual-main {
  width: 100%;
  aspect-ratio: 4/5;
  background: linear-gradient(180deg, #EDE9FE 0%, #E0E7FF 100%);
  border-radius: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-visual-main svg {
  width: 120px;
  height: 120px;
  color: var(--primary);
  opacity: 0.6;
}

.about-visual-float {
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: white;
  border-radius: 30px;
  box-shadow: var(--shadow-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float 6s ease-in-out infinite;
}

.about-visual-float svg {
  width: 60px;
  height: 60px;
  color: var(--accent);
}

.about-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 30px;
  line-height: 1.2;
}

.about-content p {
  font-size: 1.1rem;
  color: var(--text-body);
  margin-bottom: 20px;
  line-height: 1.9;
}

/* 团队展示 - 卡片设计 */
.team-section {
  background: var(--bg-soft);
  position: relative;
}

.team-section::before {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 50%;
  height: 50%;
  background: radial-gradient(ellipse at bottom right, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 80px;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-body);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.team-card {
  background: white;
  border-radius: 24px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.4s var(--ease-flow);
  position: relative;
  overflow: hidden;
}

.team-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.4s var(--ease-flow);
}

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

.team-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-strong);
}

.team-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-icon svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
}

.team-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.team-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* 产品页面 - 功能展示 */
.product-hero {
  padding: 200px 0 100px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-main) 100%);
}

.product-hero h1 {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 25px;
}

.product-hero h1 span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-hero p {
  font-size: 1.3rem;
  color: var(--text-body);
  max-width: 600px;
  margin: 0 auto;
}

.product-features {
  padding: 100px 0;
}

.feature-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 120px;
}

.feature-item:last-child {
  margin-bottom: 0;
}

.feature-item.reverse {
  direction: rtl;
}

.feature-item.reverse > * {
  direction: ltr;
}

.feature-visual {
  position: relative;
}

.feature-visual-main {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.feature-visual-main::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.feature-visual-main svg {
  width: 100px;
  height: 100px;
  color: var(--primary);
  z-index: 1;
}

.feature-visual-float {
  position: absolute;
  width: 120px;
  height: 120px;
  background: white;
  border-radius: 24px;
  box-shadow: var(--shadow-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float 6s ease-in-out infinite;
}

.feature-visual-float svg {
  width: 50px;
  height: 50px;
  color: var(--accent);
}

.feature-visual-float.f1 {
  top: -20px;
  right: -20px;
}

.feature-visual-float.f2 {
  bottom: -20px;
  left: -20px;
  animation-delay: -3s;
}

.feature-content {
  max-width: 500px;
}

.feature-badge {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 25px;
}

.feature-badge.blue {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent);
}

.feature-badge.purple {
  background: rgba(139, 92, 246, 0.1);
  color: var(--primary);
}

.feature-badge.yellow {
  background: rgba(245, 158, 11, 0.1);
  color: #F59E0B;
}

.feature-badge.green {
  background: rgba(16, 185, 129, 0.1);
  color: #10B981;
}

.feature-content h3 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.feature-content p {
  font-size: 1.1rem;
  color: var(--text-body);
  line-height: 1.8;
}

/* 新闻页面 - 杂志风格 */
.news-hero {
  padding: 180px 0 100px;
  text-align: center;
}

.news-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.news-hero p {
  font-size: 1.2rem;
  color: var(--text-body);
}

.news-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.news-main {
  background: white;
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.4s var(--ease-flow);
}

.news-main:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.news-main-image {
  height: 300px;
  background: linear-gradient(135deg, #EDE9FE 0%, #E0E7FF 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-main-image svg {
  width: 80px;
  height: 80px;
  color: var(--primary);
  opacity: 0.5;
}

.news-main-content {
  padding: 35px;
}

.news-meta {
display: flex;
  gap: 20px;
  margin-bottom: 15px;
}

.news-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(139, 92, 246, 0.1);
  padding: 5px 12px;
  border-radius: 50px;
}

.news-date {
  font-size: 0.85rem;
  color: var(--text-light);
}

.news-main h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.4;
}

.news-main p {
  color: var(--text-body);
  line-height: 1.7;
}

.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-sidebar-item {
  background: white;
  border-radius: 16px;
  padding: 25px;
  transition: all 0.3s var(--ease-flow);
}

.news-sidebar-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-soft);
}

.news-sidebar-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-sidebar-item p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* 联系页面 */
.contact-section {
  padding: 150px 0 100px;
}

.contact-hero {
  text-align: center;
  margin-bottom: 80px;
}

.contact-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.contact-hero p {
  font-size: 1.2rem;
  color: var(--text-body);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.contact-item {
  display: flex;
  gap: 25px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.contact-item h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 5px;
}

.contact-item p {
  color: var(--text-body);
  font-size: 0.95rem;
}

.contact-qr {
  background: white;
  border-radius: 24px;
  padding: 50px;
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.contact-qr-placeholder {
  width: 200px;
  height: 200px;
  background: var(--bg-soft);
  border-radius: 16px;
  margin: 0 auto 25px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-qr-placeholder svg {
  width: 80px;
  height: 80px;
  color: var(--text-light);
  opacity: 0.5;
}

.contact-qr h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.contact-qr p {
  color: var(--text-light);
}

/* 帮助中心 */
.help-hero {
  padding: 180px 0 100px;
  text-align: center;
}

.help-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.help-hero p {
  font-size: 1.2rem;
  color: var(--text-body);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.faq-card {
  background: white;
  border-radius: 20px;
  padding: 35px;
  cursor: pointer;
  transition: all 0.3s var(--ease-flow);
  border: 2px solid transparent;
}

.faq-card:hover {
  border-color: rgba(139, 92, 246, 0.2);
  box-shadow: var(--shadow-soft);
}

.faq-card.active {
  border-color: var(--primary);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.faq-question h3 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
}

.faq-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--ease-flow);
}

.faq-icon svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  transition: transform 0.3s var(--ease-flow);
}

.faq-card.active .faq-icon {
  background: var(--primary);
}

.faq-card.active .faq-icon svg {
  color: white;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-flow);
}

.faq-card.active .faq-answer {
  max-height: 200px;
  margin-top: 20px;
}

.faq-answer p {
  color: var(--text-body);
  line-height: 1.8;
  padding-top: 20px;
  border-top: 1px solid var(--bg-soft);
}

.faq-answer a {
  color: var(--primary);
  text-decoration: underline;
}

/* 价值观展示 */
.values-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-main) 100%);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.value-card {
  background: white;
  border-radius: 24px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.4s var(--ease-flow);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.4s var(--ease-flow);
}

.value-card:hover::before {
  opacity: 0.03;
}

.value-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.value-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-icon svg {
  width: 35px;
  height: 35px;
  color: white;
}

.value-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.value-card p {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.6;
}

/* CTA区域 */
.cta-section {
  padding: 120px 0;
  text-align: center;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: white;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
}

.cta-section .btn-hero {
  background: white;
  color: var(--primary) !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* 页脚 */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 20px;
  display: inline-block;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 25px;
  color: white;
}

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

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

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

.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
  .hero-visual {
    width: 50%;
  }
  
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .hero {
    padding-top: 120px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .feature-item {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .feature-item.reverse {
    direction: ltr;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-visual {
    display: none;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn-hero {
    width: 100%;
    text-align: center;
  }
}

/* 动画类 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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