/* 墨工文化 - iOS玻璃拟态风格CSS */

:root {
  /* 主色调 */
  --primary: #1a73e8;
  --primary-light: #4285f4;
  --primary-dark: #1557b0;
  
  /* 辅助色 */
  --accent-cyan: #00bcd4;
  --accent-purple: #7c4dff;
  --accent-teal: #009688;
  
  /* 玻璃效果背景色 */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-dark: rgba(30, 30, 40, 0.75);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-border-light: rgba(255, 255, 255, 0.25);
  
  /* 文字颜色 */
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-light: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.7);
  
  /* 渐变背景 */
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --gradient-blue: linear-gradient(135deg, #1a73e8 0%, #4285f4 50%, #00bcd4 100%);
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(26, 115, 232, 0.3);
  
  /* 圆角 - 小圆角精致风格 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* 间距 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  /* 过渡 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础重置 */
*, *::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;
  line-height: 1.6;
  color: var(--text-primary);
  background: #f5f7fa;
  overflow-x: hidden;
}

/* 导航栏 - 玻璃效果 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-normal);
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 44px;
  height: 40px;
  background: var(--gradient-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--shadow-sm);
  letter-spacing: -0.02em;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

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

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: rgba(26, 115, 232, 0.08);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

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

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

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

/* Hero区域 */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: -2;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/hero-bg.webp') center/cover;
  opacity: 0.15;
  mix-blend-mode: overlay;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.4) 100%);
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  z-index: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--text-light);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--text-light);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--glass-bg-dark);
  color: var(--text-light);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-glass:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-2px);
}

/* 主营业务卡片区域 */
.services-section {
  padding: var(--space-2xl) 2rem;
  background: linear-gradient(180deg, #f5f7fa 0%, #ffffff 100%);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.section-tag {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: linear-gradient(135deg, rgba(26,115,232,0.1) 0%, rgba(0,188,212,0.1) 100%);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* 服务卡片网格 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-blue);
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26, 115, 232, 0.3);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-icon.blue {
  background: linear-gradient(135deg, rgba(26,115,232,0.15) 0%, rgba(66,133,244,0.15) 100%);
  color: var(--primary);
}

.service-icon.cyan {
  background: linear-gradient(135deg, rgba(0,188,212,0.15) 0%, rgba(0,150,136,0.15) 100%);
  color: var(--accent-cyan);
}

.service-icon.purple {
  background: linear-gradient(135deg, rgba(124,77,255,0.15) 0%, rgba(156,39,176,0.15) 100%);
  color: var(--accent-purple);
}

.service-icon.teal {
  background: linear-gradient(135deg, rgba(0,150,136,0.15) 0%, rgba(0,188,212,0.15) 100%);
  color: var(--accent-teal);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.service-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition-fast);
}

.service-card:hover .service-link {
  gap: 0.625rem;
}

/* 特色展示区域 */
.features-section {
  padding: var(--space-2xl) 2rem;
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.features-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(26,115,232,0.1) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
}

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

.features-section .section-title,
.features-section .section-desc {
  color: var(--text-light);
  position: relative;
  z-index: 1;
}

.features-section .section-desc {
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.feature-item {
  background: var(--glass-bg-dark);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition-normal);
}

.feature-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.2);
  box-shadow: 0 0 40px rgba(26,115,232,0.2);
}

.feature-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.feature-label {
  font-size: 1rem;
  color: var(--text-muted);
}

/* 内容区域通用样式 */
.content-section {
  padding: var(--space-2xl) 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.content-section.alt-bg {
  background: linear-gradient(180deg, #ffffff 0%, #f5f7fa 100%);
  max-width: 100%;
}

.content-section.alt-bg .content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
}

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

.content-grid.reverse {
  direction: rtl;
}

.content-grid.reverse > * {
  direction: ltr;
}

.content-text h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.content-text p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.content-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.content-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 产品展示 */
.product-showcase {
  padding: var(--space-2xl) 2rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

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

.product-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

.product-info {
  padding: 1.5rem;
}

.product-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

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

/* 页脚 */
.footer {
  background: var(--gradient-dark);
  color: var(--text-light);
  padding: var(--space-xl) 2rem var(--space-lg);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
}

.footer-brand .logo-text {
  color: white;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: white;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: var(--space-xl) auto 0;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* 页面标题 */
.page-header {
  padding: 8rem 2rem 4rem;
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/hero-bg.webp') center/cover;
  opacity: 0.1;
}

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

.page-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
}

.page-subtitle {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto;
}

/* 联系表单 */
.contact-section {
  padding: var(--space-2xl) 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.contact-form {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-md);
  background: white;
  transition: var(--transition-fast);
  font-family: inherit;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.grid-2-wide {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.grid-form-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.mobile-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.btn-mobile-full {
  margin-top: 2rem;
}

@media (max-width: 768px) {
  .grid-2,
  .grid-2-wide {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .grid-form-2 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .mobile-stack .btn-mobile-full {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .content-grid.reverse {
    direction: ltr;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0.75rem 1rem;
  }
  
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    z-index: 999;
  }

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

  .nav-menu .nav-link {
    font-size: 1.25rem;
    padding: 0.75rem 1.5rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero {
    padding: 5rem 1rem 3rem;
  }

  .services-section,
  .features-section,
  .product-showcase {
    padding: 3rem 1rem;
  }

  .content-section {
    padding: 3rem 1rem;
  }

  .page-header {
    padding: 6rem 1rem 3rem;
  }

  .section-title {
    font-size: clamp(1.5rem, 5vw, 3rem);
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
}

/* 动画 */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}