/* 
* 印度风格主题CSS样式
* deepfake.makeup
*/

:root {
  --color-primary: #FF9933; /* 印度国旗橙色 */
  --color-primary-dark: #FF5722;
  --color-secondary: #138808; /* 印度国旗绿色 */
  --color-secondary-dark: #0D6B30;
  --color-accent: #0000CC; /* 印度国旗蓝色的变体 */
  --color-background: #FFF9F0;
  --color-text: #333333;
  --color-text-light: #666666;
  --font-primary: 'Noto Sans', 'Arial', sans-serif;
  --font-heading: 'Poppins', 'Arial', sans-serif;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

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

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

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* 头部样式 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: white;
  padding: 1rem 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 2.5rem;
  margin-right: 0.5rem;
}

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

.nav-list {
  display: flex;
  list-style: none;
}

.nav-item {
  margin-left: 2rem;
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text);
  cursor: pointer;
}

/* 主区域样式 */
.main {
  padding-top: 5rem;
}

/* 英雄区域样式 */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  padding: 6rem 0 4rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/><circle cx="50" cy="50" r="30" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/><circle cx="50" cy="50" r="20" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>');
  background-size: 100px 100px;
  opacity: 0.3;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: white;
}

.hero-subtitle {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2.5rem;
  color: rgba(255, 255, 255, 0.9);
}

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

/* 特性区域样式 */
.features {
  padding: 5rem 0;
  background-color: white;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
  border-radius: 3px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  text-align: center;
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.feature-description {
  color: var(--color-text-light);
}

/* 步骤区域样式 */
.how-it-works {
  padding: 5rem 0;
  background-color: var(--color-background);
}

.how-it-works-img {
  max-width: 800px;
  margin: 0 auto 3rem;
  display: block;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  margin-bottom: 0.5rem;
}

/* CTA区域样式 */
.cta {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  color: white;
  text-align: center;
}

.cta-title {
  color: white;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.cta-description {
  max-width: 800px;
  margin: 0 auto 2.5rem;
  font-size: 1.1rem;
}

/* 页脚样式 */
.footer {
  background-color: #1A1A1A;
  color: #AFAFAF;
  padding-top: 3rem;
}

.footer-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  padding-bottom: 2rem;
}

.footer-col:first-child {
  grid-column: 1 / span 2;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.footer-logo img {
  height: 2rem;
  margin-right: 0.5rem;
}

.footer-logo-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: white;
}

.footer-title {
  color: white;
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--color-primary);
}

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

.footer-link {
  margin-bottom: 0.75rem;
}

.footer-link a {
  color: #AFAFAF;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  padding: 1.5rem 0;
  text-align: center;
  border-top: 1px solid #333;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #333;
  color: #AFAFAF;
  transition: all 0.3s ease;
}

.social-icon:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

/* 工具类 */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 响应式设计 */
@media (max-width: 991px) {
  .container {
    max-width: 100%;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 767px) {
  html {
    font-size: 14px;
  }
  
  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: white;
    flex-direction: column;
    box-shadow: var(--shadow-md);
  }
  
  .nav-list.active {
    display: flex;
  }
  
  .nav-item {
    margin: 0;
  }
  
  .nav-link {
    display: block;
    padding: 1rem 1.5rem;
  }
  
  .nav-link::after {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }
  
  .feature-card {
    padding: 1.5rem;
  }
  
  .feature-icon {
    width: 60px;
    height: 60px;
  }
  
  .step {
    flex-direction: column;
    text-align: center;
  }
  
  .step-number {
    margin: 0 auto;
  }
  
  .footer-col:first-child {
    grid-column: auto;
  }
}

@media (max-width: 479px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .cta-title {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* 印度传统花纹装饰元素 */
.indian-pattern {
  position: relative;
  overflow: hidden;
}

.indian-pattern::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 30px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="10" viewBox="0 0 40 10"><path d="M0,0 Q10,10 20,0 Q30,10 40,0" fill="none" stroke="rgba(255,153,51,0.3)" stroke-width="1"/></svg>');
  background-repeat: repeat-x;
  z-index: 10;
}

.indian-pattern.top::before {
  top: 0;
}

.indian-pattern.bottom::before {
  bottom: 0;
  transform: rotate(180deg);
}