/* 基础样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: 'Playfair Display', 'Noto Serif SC', Georgia, 'Times New Roman', serif;
  color: #2d3748;
  scroll-behavior: smooth;
}

body {
  background-color: #f8f9fa;
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-size: 16px;
  letter-spacing: 0.01em;
}

/* 变量 */
:root {
  --color-primary: #3b82f6;
  --color-primary-dark: #2563eb;
  --color-secondary: #38bdf8;
  --color-secondary-dark: #0ea5e9;
  --color-accent: #f59e0b;
  --color-gray-100: #f8f9fa;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;
  --font-heading: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
  --font-body: 'Source Sans Pro', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
}

/* 通用样式 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 导航栏样式 */
.header {
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-gray-200);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  position: relative;
}

.navbar-logo a {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--color-gray-800);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.navbar-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-gray-600);
  font-weight: 500;
  font-family: var(--font-body);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  position: relative;
  padding: 0.25rem 0;
}

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

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

.nav-link:hover, .nav-link.active {
  color: var(--color-gray-900);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.navbar-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-gray-700);
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: white;
    padding: 1rem;
    gap: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .navbar-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
  color: var(--color-gray-900);
}

h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.75rem;
}

p {
  margin-bottom: var(--spacing-md);
  font-family: var(--font-body);
  color: var(--color-gray-700);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 500;
}

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

.text-primary {
  color: var(--color-primary);
}

.text-center {
  text-align: center;
  margin: 40px;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  border-radius: 0.25rem;
  font-weight: 600;
  font-family: var(--font-body);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
  margin: var(--spacing-sm) 0;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border: none;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-gray-300);
  color: var(--color-gray-800);
  position: relative;
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* 徽章样式 */
.badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 2px 5px rgba(109, 93, 252, 0.2);
}

.badge-secondary {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  background-color: var(--color-secondary);
  color: white;
}

/* 分隔线 */
.divider {
  width: 6rem;
  height: 0.25rem;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  margin: 0 auto var(--spacing-md);
  border-radius: 9999px;
  opacity: 0.7;
}

/* 英雄区域 */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: var(--spacing-xl) 0;
  background-color: transparent;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(56, 189, 248, 0.1) 100%);
}

/* Three.js背景 */
.three-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text {
  animation: fadeIn 1s ease-out;
}

.hero-text h1 {
  font-size: 4.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
  background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-700) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

.hero-text .subtitle {
  font-size: 2.25rem;
  color: var(--color-gray-600);
  font-weight: 400;
  font-style: italic;
  margin-top: var(--spacing-xs);
}

.quote-container {
  height: 5.5rem;
  margin-bottom: var(--spacing-lg);
  position: relative;
  border-left: 3px solid var(--color-primary);
  padding-left: var(--spacing-md);
}

.quote {
  position: absolute;
  font-size: 1.25rem;
  font-family: var(--font-heading);
  font-style: italic;
  color: var(--color-gray-600);
  opacity: 0;
  transform: translateY(1rem);
  transition: all 0.7s cubic-bezier(0.19, 1, 0.22, 1);
  line-height: 1.6;
}

.quote.active {
  opacity: 1;
  transform: translateY(0);
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

@media (min-width: 640px) {
  .button-group {
    flex-direction: row;
  }
}

.hero-image {
  animation: fadeIn 1s ease-out 0.3s both;
}

.card-feature {
  background-color: white;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.07), 0 5px 15px rgba(0, 0, 0, 0.04);
  transform: rotate(2deg);
  transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
  border: 1px solid var(--color-gray-200);
}

.card-feature:hover {
  transform: rotate(0) translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.09), 0 10px 20px rgba(0, 0, 0, 0.05);
}

.card-icon {
  height: 16rem;
  background-color: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.card-icon svg {
  width: 5rem;
  height: 5rem;
  color: var(--color-primary);
}

.card-feature h3 {
  text-align: center;
  margin-top: 1.5rem;
}

.quote-text {
  padding: 1.5rem;
  font-style: italic;
  color: var(--color-gray-600);
}

.card-feature .badge-secondary {
  margin: 0 1.5rem 1.5rem auto;
  display: table;
}

.scroll-down {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-gray-400);
  animation: bounce 2s infinite;
}

.scroll-down span {
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

.scroll-down svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* 特色内容区 */
.features {
  background-color: white;
  position: relative;
}

.features:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(180deg, var(--color-gray-100) 0%, rgba(255,255,255,0) 100%);
  z-index: 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.section-header h2 {
  font-size: 2.75rem;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  display: inline-block;
  font-weight: 700;
  letter-spacing: -0.01em;
  position: relative;
  padding-bottom: 0.5rem;
}

.section-header p {
  max-width: 40rem;
  margin: var(--spacing-sm) auto 0;
  color: var(--color-gray-600);
  font-size: 1.125rem;
  line-height: 1.7;
}

.feature-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: center;
  align-items: stretch;
  margin-top: 1rem;
}

.feature-card {
  background: #fff;
  border-radius: 1.25rem;
  box-shadow: 0 2px 16px 0 rgba(59,130,246,0.08), 0 1.5px 8px 0 rgba(56,189,248,0.07);
  border: 1px solid var(--color-gray-200);
  padding: 2.5rem 2rem 2rem 2rem;
  margin: 20;
  flex: 1 1 320px;
  min-width: 280px;
  max-width: 370px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: box-shadow 0.3s cubic-bezier(.4,0,.2,1), transform 0.25s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: visible;
}

.feature-card:hover {
  box-shadow: 0 8px 32px 0 rgba(59,130,246,0.16), 0 4px 16px 0 rgba(56,189,248,0.12);
  transform: translateY(-8px) scale(1.025);
}

.feature-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, rgba(59,130,246,0.10) 0%, rgba(56,189,248,0.10) 100%);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(59,130,246,0.07);
  font-size: 2rem;
  transition: background 0.3s, transform 0.3s;
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, rgba(59,130,246,0.18) 0%, rgba(56,189,248,0.18) 100%);
  transform: scale(1.08) rotate(-3deg);
}

.feature-card h3 {
  /* 保持原有h2/h3样式 */
}

.feature-card p {
  color: var(--color-gray-600);
  margin-bottom: 1.25rem;
  text-align: center;
  line-height: 1.7;
  font-size: 1.08rem;
  flex-grow: 1;
}

.feature-card a.link, .feature-card a.link-less {
  margin-top: 0.5rem;
  font-size: 1rem;
  padding: 0.5rem 1.25rem;
  border-radius: 0.5rem;
  background: none;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  transition: background 0.2s, color 0.2s, border 0.2s;
  display: inline-block;
  text-align: center;
  font-weight: 500;
}

.feature-card a.link:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary-dark);
}

.feature-card a.link-less {
  border: 1px dashed var(--color-gray-300);
  color: var(--color-gray-400);
  cursor: not-allowed;
  background: #f8fafc;
}

@media (max-width: 900px) {
  .feature-cards {
    flex-direction: column;
    gap: 1.5rem;
    align-items: stretch;
  }
  .feature-card {
    max-width: 100%;
    min-width: 0;
  }
}

.feature-card:hover {
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.07), 0 5px 15px rgba(0, 0, 0, 0.04);
  transform: translateY(-5px);
}

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

.feature-icon {
  width: 4.5rem;
  height: 4.5rem;
  background: linear-gradient(135deg, rgba(109, 93, 252, 0.1) 0%, rgba(167, 139, 250, 0.1) 100%);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
  transition: all 0.4s ease;
  box-shadow: 0 5px 15px rgba(109, 93, 252, 0.1);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, rgba(109, 93, 252, 0.15) 0%, rgba(167, 139, 250, 0.15) 100%);
  transform: scale(1.05);
}

.feature-icon svg {
  width: 1.75rem;
  height: 1.75rem;
}

.feature-card h3 {
  margin-bottom: 0.75rem;
  text-align: center;
  font-size: 1.5rem;
  color: var(--color-gray-800);
}

.feature-card p {
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
  text-align: center;
  line-height: 1.6;
  flex-grow: 1;
}

.link {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 auto;
  justify-content: center;
}

.link:after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--color-primary);
  transition: width 0.3s ease;
}

.link:hover:after {
  width: 100%;
}

.link:hover {
  color: var(--color-primary-dark);
}

.link-less {
  color: var(--color-gray-600);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.8;
}

.link-less:hover {
  color: var(--color-primary);
  opacity: 1;
}

.link-less:hover::after {
  content: "敬请期待";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-primary);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  white-space: nowrap;
  margin-left: 0.5rem;
  animation: fadeIn 0.3s ease-in-out;
  pointer-events: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-50%) translateX(-10px); }
  to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

.btn-outline[href="#tools"]:hover::after {
  content: "敬请期待";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-primary);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  white-space: nowrap;
  margin-left: 0.5rem;
  animation: fadeIn 0.3s ease-in-out;
  pointer-events: none;
}

/* 文章区域 */
.articles {
  background-color: var(--color-gray-100);
  position: relative;
  overflow: hidden;
}

.article-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .article-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-list {
  background: #fff; border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); margin-bottom: 1.5rem; padding: 1.5rem; transition: transform 0.2s;
}





/* 联系区域 */
.contact {
  background-color: var(--color-gray-100);
  position: relative;
  overflow: hidden;
  padding-bottom: var(--spacing-lg);
}

.contact:before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: radial-gradient(circle at 70% 30%, rgba(59, 130, 246, 0.04) 0%, transparent 70%);
  z-index: 0;
}

.contact-form {
  max-width: 30rem;
  margin: 0 auto;
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: 1rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05), 0 5px 10px rgba(0, 0, 0, 0.03);
  position: relative;
  z-index: 1;
  border: 1px solid var(--color-gray-200);
  text-align: center;
}

.qrcode-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.qrcode-placeholder {
  width: 180px;
  height: 180px;
  background-color: var(--color-gray-200);
  border-radius: 0.5rem;
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qrcode-placeholder:after {
  content: '公众号二维码';
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--color-gray-800);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-gray-300);
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: var(--font-body);
  transition: all 0.3s ease;
  background-color: var(--color-gray-100);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(109, 93, 252, 0.15);
  background-color: white;
}

/* 页脚 */
.footer {
  background-color: var(--color-gray-900);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  margin-top: auto;
  position: relative;
  overflow: hidden;
}

.footer:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 80%, rgba(109, 93, 252, 0.1) 0%, transparent 50%);
  z-index: 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
  padding: 1rem 0;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr 2fr;
  }
}

.footer-logo h2 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

.footer-logo p {
  color: var(--color-gray-400);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 90%;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 640px) {
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

.footer-section h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: white;
  font-family: var(--font-heading);
  position: relative;
  padding-bottom: var(--spacing-xs);
  letter-spacing: 0.02em;
}

.footer-section h3:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.5;
}

.footer-section ul li a {
  color: var(--color-gray-400);
  transition: all 0.3s ease;
  font-family: var(--font-body);
  position: relative;
  padding-left: 0;
  display: inline-block;
  font-size: 0.95rem;
}

.footer-section ul li a:before {
  content: '→';
  position: absolute;
  left: 0;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
}

.footer-section ul li a:hover {
  color: white;
  padding-left: 1.25rem;
}

.footer-section ul li a:hover:before {
  opacity: 1;
  transform: translateX(0);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--color-gray-500);
  font-size: 0.875rem;
  position: relative;
  z-index: 1;
}

/* 动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0) translateX(-50%);
  }
  40% {
    transform: translateY(-0.5rem) translateX(-50%);
  }
  60% {
    transform: translateY(-0.25rem) translateX(-50%);
  }
}

/* 页脚图片样式 */
.footer-section ul li img {
  max-width: 140px;
  border-radius: 8px;
  margin-top: 0.75rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.footer-section ul li img:hover {
  transform: scale(1.05);
}

/* 响应式调整 */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-text .subtitle {
    font-size: 1.75rem;
  }
  
  .section-header h2 {
    font-size: 2.25rem;
  }
  
  .quote {
    font-size: 1.1rem;
  }
  
  .quote-container {
    height: 7rem;
  }
  
  .feature-card, .article-card, .tool-card {
    padding: var(--spacing-md);
  }
  
  .contact-form {
    padding: var(--spacing-lg);
  }
  
  .footer-section ul li {
    max-width: 120px;
  }
}