/* 基础变量定义 */
:root {
  --primary-color: #4A90E2;
  --primary-dark: #357ABD;
  --secondary-color: #26d0ce;
  --accent-color: #e74c3c;
  --text-primary: #2c3e50;
  --text-secondary: #666;
  --text-light: #999;
  --bg-primary: #fff;
  --bg-secondary: #f8fafc;
  --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e9f4ff 100%);
  --shadow-light: 0 5px 20px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-heavy: 0 20px 60px rgba(0, 0, 0, 0.15);
  --border-radius: 16px;
  --border-radius-large: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 800;
}

.primary-cta-button,
.secondary-cta-button {
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
}

.primary-cta-button {
  background: var(--bg-primary);
  color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.primary-cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition);
}

.primary-cta-button:hover::before {
  left: 100%;
}

.primary-cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

.secondary-cta-button {
  background: transparent;
  color: var(--bg-primary);
  border-color: var(--bg-primary);
}

.secondary-cta-button:hover {
  background: var(--bg-primary);
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* 国家商标注册模块 */
.trademark-countries {
  padding: 100px 0;
  background: var(--bg-primary);
  position: relative;
}

.trademark-countries::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="countries-pattern" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="%23667eea" opacity="0.03"/><circle cx="80" cy="80" r="0.5" fill="%23667eea" opacity="0.03"/></pattern></defs><rect width="100%" height="100%" fill="url(%23countries-pattern)"/></svg>');
  opacity: 0.5;
}

.trademark-countries .container {
  position: relative;
  z-index: 2;
}

.countries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 80px;
}

.country-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-large);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid #e9ecef;
  box-shadow: var(--shadow-light);
  position: relative;
  overflow: hidden;
}

.country-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.country-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-heavy);
}

.country-card.featured {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-medium);
}

.country-card.featured::before {
  transform: scaleX(1);
}

.country-flag {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.country-flag .flag-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.country-flag .flag-image:hover {
  transform: scale(1.1);
}

.country-flag .eu-flag,
.country-flag svg {
  width: 100%;
  height: 100%;
}

.country-card h3 {
  color: var(--text-primary);
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 20px;
}

.country-info {
  margin-bottom: 20px;
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #f0f0f0;
}

.info-item:last-child {
  border-bottom: none;
}

.info-label {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: var(--font-weight-medium);
}

.info-value {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
}

.country-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 25px;
}

.feature-tag {
  background: #f8f9fa;
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: var(--font-weight-medium);
  text-align: center;
  transition: var(--transition);
}

.country-card:hover .feature-tag {
  background: #e3f2fd;
  color: var(--primary-color);
}

.country-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: var(--transition);
  display: inline-block;
  margin-top: 10px;
}

.country-link:hover {
  color: var(--primary-dark);
  transform: translateX(5px);
}

.country-link.primary {
  background: var(--primary-color);
  color: white;
  padding: 12px 24px;
  border-radius: 25px;
  margin-top: 15px;
}

.country-link.primary:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
}

/* 特殊服务卡片 */
.country-card.special {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 2px dashed var(--primary-color);
}

.country-card.special .service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  border-radius: 50%;
}

.service-info {
  margin-bottom: 20px;
}

.service-info p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
}

.contact-info {
  margin-bottom: 20px;
}

.online-service {
  background: #4CAF50;
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  display: inline-block;
}

/* 商标服务模块 */
.trademark-services {
  padding: 100px 0;
  background: var(--bg-secondary);
  position: relative;
}

.trademark-services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="services-pattern" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23667eea" opacity="0.02"/></pattern></defs><rect width="100%" height="100%" fill="url(%23services-pattern)"/></svg>');
}

.trademark-services .container {
  position: relative;
  z-index: 2;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 80px;
}

.service-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-large);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid #e9ecef;
  box-shadow: var(--shadow-light);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-heavy);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
  border-radius: 50%;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.service-card:hover .service-icon svg {
  fill: white;
}

.service-card h3 {
  color: var(--text-primary);
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 15px;
}

.service-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.service-features li {
  color: var(--text-secondary);
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  font-size: 14px;
}

.service-features li::before {
  content: '✓';
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* 为什么选择我们模块 */
.why-choose-us {
  padding: 100px 0;
  background: var(--bg-primary);
  position: relative;
}

.why-choose-us::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="choose-pattern" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="0.8" fill="%23667eea" opacity="0.03"/><circle cx="75" cy="75" r="0.8" fill="%23667eea" opacity="0.03"/></pattern></defs><rect width="100%" height="100%" fill="url(%23choose-pattern)"/></svg>');
}

.why-choose-us .container {
  position: relative;
  z-index: 2;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 80px;
}

.advantage-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-large);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid #e9ecef;
  box-shadow: var(--shadow-light);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), #ff6b6b);
  transform: scaleX(0);
  transition: var(--transition);
}

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

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-heavy);
}

.advantage-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
  border-radius: 50%;
  transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
  transform: scale(1.1);
  background: linear-gradient(135deg, var(--accent-color) 0%, #ff6b6b 100%);
}

.advantage-card:hover .advantage-icon svg {
  fill: white;
}

.advantage-card h3 {
  color: var(--text-primary);
  font-size: 20px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 15px;
}

.advantage-number {
  font-size: 32px;
  font-weight: var(--font-weight-black);
  color: var(--accent-color);
  margin-bottom: 15px;
}

.advantage-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* 服务流程 */
.service-process {
  margin-top: 80px;
  padding: 60px 40px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: var(--border-radius-large);
  position: relative;
}

.service-process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="25" stroke="%23667eea" stroke-width="0.5" fill="none" opacity="0.1"/></svg>');
  animation: rotate 30s linear infinite;
}

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

  to {
    transform: rotate(360deg);
  }
}

.service-process h3 {
  text-align: center;
  color: var(--text-primary);
  font-size: 28px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 50px;
  position: relative;
  z-index: 2;
}

.process-steps {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 30px;
  position: relative;
  z-index: 2;
}

.process-step {
  flex: 1;
  text-align: center;
  position: relative;
}

.process-step:hover {
  transform: translateY(-5px);
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: var(--font-weight-bold);
  margin: 0 auto 20px;
  box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
  transition: var(--transition);
}

.process-step:hover .step-number {
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

.process-step h4 {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 10px;
}

.process-step p {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 14px;
}

/* CTA区域 */
.cta-section {
  margin-top: 80px;
  padding: 60px 40px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  border-radius: var(--border-radius-large);
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="cta-pattern" width="40" height="40" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="2" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23cta-pattern)"/></svg>');
  animation: float 15s ease-in-out infinite;
}

.cta-section h3 {
  font-size: 32px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 15px;
  position: relative;
  z-index: 2;
}

.cta-section p {
  font-size: 18px;
  margin-bottom: 40px;
  opacity: 0.9;
  position: relative;
  z-index: 2;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.btn-primary-large,
.btn-secondary-large {
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary-large {
  background: white;
  color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.btn-primary-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

.btn-secondary-large {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary-large:hover {
  background: white;
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* 通用样式 */
.section-title {
  text-align: center;
  color: var(--text-primary);
  font-size: 36px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 20px;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 响应式设计 */
@media (max-width: 1200px) {

  .countries-grid,
  .services-grid,
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .process-steps {
    flex-wrap: wrap;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --border-radius: 12px;
    --border-radius-large: 16px;
  }

  .hero-section {
    padding: 80px 0 60px;
  }

  .main-title {
    font-size: 32px;
  }

  .main-subtitle {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .trademark-countries,
  .trademark-services,
  .why-choose-us {
    padding: 60px 0;
  }

  .countries-grid,
  .services-grid,
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .country-card,
  .service-card,
  .advantage-card {
    padding: 30px 20px;
  }

  .process-steps {
    flex-direction: column;
    gap: 30px;
  }

  .service-process {
    padding: 40px 20px;
  }

  .cta-section {
    padding: 40px 20px;
  }

  .cta-section h3 {
    font-size: 24px;
  }

  .cta-section p {
    font-size: 16px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary-large,
  .btn-secondary-large {
    width: 100%;
    max-width: 280px;
  }

  .section-title {
    font-size: 28px;
  }

  .section-subtitle {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .main-title {
    font-size: 28px;
  }

  .main-subtitle {
    font-size: 14px;
  }

  .country-card,
  .service-card,
  .advantage-card {
    padding: 25px 15px;
  }

  .country-flag,
  .service-icon,
  .advantage-icon {
    width: 60px;
    height: 60px;
  }

  .section-title {
    font-size: 24px;
  }

  .section-subtitle {
    font-size: 14px;
  }

  .process-steps {
    gap: 25px;
  }

  .process-step h4 {
    font-size: 16px;
  }

  .process-step p {
    font-size: 13px;
  }

  .step-number {
    width: 50px;
    height: 50px;
    font-size: 20px;
  }
}