/* 四川籽慧谷知识产权运营有限公司官网样式 */

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

:root {
  /* 主题色 - 专业蓝 */
  --primary-color: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  
  /* 辅助色 */
  --accent-color: #10b981;
  --accent-light: #34d399;
  
  /* 中性色 */
  --bg-color: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  
  /* 字体 */
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-base: 1.125rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-2xl: 2.5rem;
  --font-size-3xl: 3rem;
  
  /* 圆角 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 导航栏 */
.header {
  background: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 0.025em;
}

.logo-image {
  height: 50px;
  width: auto;
  object-fit: contain;
}

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

.nav {
  display: flex;
  gap: 0.75rem;
}

.nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.375rem 0.625rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav a:hover {
  color: var(--primary-color);
  background: var(--bg-secondary);
}

/* Hero 区域 */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  color: white;
  padding: calc(70px + var(--spacing-md)) 0 var(--spacing-md);
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 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='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding-top: 30px;
}

.hero h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 300;
  margin-bottom: var(--spacing-md);
  opacity: 0.95;
}

.hero-description {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
  line-height: 1.8;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-top: var(--spacing-sm);
}

/* 区块通用样式 */
.section {
  padding: 2.5rem 0;
  scroll-margin-top: 80px;
}

.section-title {
  text-align: center;
  margin-bottom: 1.5rem;
}

.section-title h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  border-radius: 2px;
}

.section-title p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin-top: var(--spacing-sm);
}

/* 公司简介 */
.about {
  background: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-text {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 2;
}

.about-text p {
  margin-bottom: var(--spacing-sm);
  text-indent: 2em;
}

.about-image {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.feature-card {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: transform 0.2s ease;
}

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

.feature-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  flex-shrink: 0;
}

.feature-content h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.feature-content p {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* 主营业务 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.service-card {
  background: white;
  padding: var(--spacing-md) var(--spacing-xs);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.service-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 32px;
  color: white;
  overflow: hidden;
}

.service-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.service-card p {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: 1.8;
  text-align: center;
}

/* 服务特色 */
.features {
  background: var(--bg-tertiary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.feature-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.feature-number {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.feature-item:nth-child(1) .feature-number {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.feature-item:nth-child(2) .feature-number {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  box-shadow: 0 4px 12px rgba(245, 87, 108, 0.3);
}

.feature-item:nth-child(3) .feature-number {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  box-shadow: 0 4px 12px rgba(79, 172, 254, 0.3);
}

.feature-item:nth-child(4) .feature-number {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  box-shadow: 0 4px 12px rgba(67, 233, 123, 0.3);
}

.feature-detail h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.feature-detail p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 服务客户 */
.clients {
  background: white;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-md);
  justify-items: center;
}

.client-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

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

.client-logo {
  width: 160px;
  height: 160px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  border: 1px dashed var(--border-color);
  flex-shrink: 0;
}

.client-logo img {
  width: 90%;
  height: 90%;
  object-fit: contain;
  object-position: center;
  border-radius: var(--radius-md);
}

.client-name {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
  min-height: 16px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  padding: 0 4px;
}
  font-weight: 500;
}

.clients-image {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  display: block;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* 服务项目 */
.projects {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.project-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  cursor: pointer;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

.project-item:hover::before {
  opacity: 1;
}

.project-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.project-placeholder {
  font-size: var(--font-size-base);
  color: white;
  font-weight: 600;
  text-align: center;
  padding: var(--spacing-md);
  line-height: 1.5;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 项目卡片渐变色 */
.project-item:nth-child(1) {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-item:nth-child(2) {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.project-item:nth-child(3) {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.project-item:nth-child(4) {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.project-item:nth-child(5) {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.project-item:nth-child(6) {
  background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.project-item:nth-child(6) .project-placeholder {
  color: #333;
  text-shadow: none;
}

.project-item:nth-child(7) {
  background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.project-item:nth-child(7) .project-placeholder {
  color: #333;
  text-shadow: none;
}

.project-item:nth-child(8) {
  background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
}

.project-item:nth-child(8) .project-placeholder {
  color: #333;
  text-shadow: none;
}

/* 服务模式 */
.service-mode {
  background: white;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.mode-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease;
}

.mode-item:hover {
  transform: translateY(-8px);
}

.mode-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* 资质荣誉 */
.qualifications {
  background: var(--bg-tertiary);
}

.qualifications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.qualification-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
  cursor: pointer;
  background: white;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qualification-card:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.qualification-placeholder {
  font-size: var(--font-size-base);
  color: var(--text-muted);
  font-weight: 500;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qualification-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* 第一个资质卡片图片重点展示人物和四川品牌发展大会文字 */
.qualification-card:first-child .qualification-placeholder img {
  object-position: center 35%;
}

/* 第三个资质卡片图片增加亮度 */
.qualification-card:nth-child(3) .qualification-placeholder img {
  filter: brightness(1.15);
}

.qualification-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin: var(--spacing-sm);
}

.badge-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: white;
}

.badge-content h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.badge-content p {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* 联系我们 */
.contact {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  color: white;
  padding: var(--spacing-lg) 0;
}

.contact-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 900px;
  margin: 0 auto;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
}

.contact-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-label {
  font-size: 11px;
  opacity: 0.8;
  font-weight: 500;
}

.contact-text {
  font-size: var(--font-size-xs);
  opacity: 0.95;
  line-height: 1.4;
}

.contact-qrcodes {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  padding: var(--spacing-sm) 0;
}

.qrcode-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.qrcode-placeholder {
  width: 100px;
  height: 100px;
  background: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-muted);
  border: 2px dashed var(--border-color);
}

.qrcode-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.qrcode-label {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.9);
}

/* 页脚 */
.footer {
  background: var(--text-primary);
  color: white;
  padding: var(--spacing-md) 0;
}

.footer-content {
  text-align: center;
}

.footer-text {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  margin-bottom: var(--spacing-xs);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  opacity: 0.6;
  margin-top: var(--spacing-xs);
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .qualifications-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .clients-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-3xl: 2rem;
    --font-size-2xl: 1.75rem;
    --font-size-xl: 1.25rem;
  }
  
  .header .container {
    height: 60px;
  }
  
  .nav {
    display: none;
  }
  
  .hero {
    padding: calc(60px + var(--spacing-sm)) var(--spacing-md) var(--spacing-sm);
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .qualifications-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .clients-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-info {
    grid-template-columns: 1fr;
  }
  
  .mode-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .qualifications-grid {
    grid-template-columns: 1fr;
  }
  
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-info {
    grid-template-columns: 1fr;
  }
  
  .contact-qrcodes {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
  
  .qrcode-placeholder {
    width: 80px;
    height: 80px;
  }
  
  .image-placeholder {
    height: 150px;
  }
  
  .project-item img {
    height: 250px;
  }
}