/* 呼吸波 官网样式表 - 新拟物风格 */

:root {
  --main-color: #4BA3F7;
  --main-color-dark: #3B93E7;
  --main-color-light: #6BB3FF;
  --bg-gradient: linear-gradient(135deg, #F8FAFF 0%, #F0F5FC 100%);
  --card-bg: #F6F9FE;
  --text-main: #2A2F45;
  --text-sub: #6A7A8C;
  --border-radius-lg: 24px;
  --border-radius-md: 16px;
  --border-radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(75,163,247,0.05);
  --shadow-md: 0 4px 12px rgba(75,163,247,0.08);
  --shadow-lg: 0 8px 24px rgba(75,163,247,0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 全局样式 */
body {
  font-family: 'SF Pro Display', 'PingFang SC', 'Helvetica Neue', sans-serif;
  color: var(--text-main);
  background: var(--bg-gradient);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background-color: rgba(248, 250, 255, 0.85);
  padding: 16px 0;
  box-shadow: var(--shadow-sm);
}

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

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: cover;
}

.logo-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-link {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 16px;
  position: relative;
  transition: var(--transition);
}

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

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

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

/* 移动端菜单 */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 101;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: var(--transition);
}

.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);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 70%;
  height: 100vh;
  background-color: white;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  padding: 80px 40px;
  flex-direction: column;
  gap: 24px;
  transition: right 0.3s ease;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-link {
  color: var(--text-main);
  text-decoration: none;
  font-size: 20px;
  font-weight: 500;
  padding: 12px 0;
  border-bottom: 1px solid rgba(106, 122, 140, 0.1);
  transition: var(--transition);
}

.mobile-nav-link:hover {
  color: var(--main-color);
  padding-left: 8px;
}

/* 英雄区 */
.hero {
  padding: 80px 0 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.breath-bg {
  position: absolute;
  top: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(75,163,247,0.18) 0%, rgba(75,163,247,0.02) 80%);
  z-index: 0;
  pointer-events: none;
  filter: blur(2px);
}

.logo-hero {
  width: 120px;
  height: 120px;
  border-radius: 28%;
  box-shadow: var(--shadow-md);
  background-color: white;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
  object-fit: cover;
}

.hero-title {
  font-size: 42px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-sub);
  max-width: 550px;
  margin: 0 auto 40px;
  position: relative;
  z-index: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--main-color);
  color: white;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
  background-color: white;
  color: var(--main-color);
  border: 1px solid rgba(75,163,247,0.2);
  margin-left: 12px;
}

.btn-secondary:hover {
  background-color: #f8faff;
  color: var(--main-color-dark);
}

/* 预览轮播 */
.preview-section {
  padding: 30px 0 60px;
}

.preview-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.carousel-container {
  position: relative;
  margin: 0 auto;
  max-width: 100%;
  overflow: hidden;
}

.carousel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 10px 0;
  margin-bottom: 16px;
}

.carousel::-webkit-scrollbar {
  display: none;
}

.carousel img {
  width: 160px;
  height: 346px;
  object-fit: cover;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  scroll-snap-align: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.carousel img:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-md);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #D0E0F5;
  cursor: pointer;
  transition: var(--transition);
}

.carousel-dot.active {
  background-color: var(--main-color);
  width: 24px;
  border-radius: 4px;
}

.carousel-buttons {
  display: flex;
  justify-content: center;
  margin-top: 24px;
  gap: 12px;
}

.carousel-button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.carousel-button:hover {
  background-color: #f0f5fc;
  transform: translateY(-2px);
}

/* 主题选择 */
.theme-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 24px 0;
}

.theme-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  transition: var(--transition);
}

.theme-dot:hover, .theme-dot.active {
  transform: scale(1.2);
  box-shadow: 0 3px 8px rgba(0,0,0,0.08);
}

/* 功能区块 */
.features-section {
  padding: 60px 0;
  background-color: rgba(248, 250, 255, 0.7);
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title:after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--main-color);
  border-radius: 3px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  padding: 30px;
  transition: var(--transition);
}

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

.feature-icon {
  font-size: 36px;
  margin-bottom: 20px;
  color: var(--main-color);
}

.feature-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.6;
}

/* 呼吸技巧 */
.breathing-section {
  padding: 60px 0;
}

.breathing-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 40px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.breathing-card:before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(75,163,247,0.1) 0%, rgba(75,163,247,0.03) 70%);
  top: -100px;
  right: -100px;
  z-index: 0;
}

.breathing-title {
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.breathing-list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
  z-index: 1;
}

.breathing-item {
  margin-bottom: 24px;
  padding-left: 24px;
  position: relative;
}

.breathing-item:before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--main-color);
}

.breathing-item-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.breathing-item-desc {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.6;
}

/* 引导下载 */
.cta-section {
  padding: 80px 0;
  text-align: center;
}

.cta-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-subtitle {
  font-size: 18px;
  color: var(--text-sub);
  max-width: 500px;
  margin: 0 auto 32px;
}

.app-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.app-button {
  display: flex;
  align-items: center;
  background-color: var(--text-main);
  color: white;
  padding: 16px 28px;
  border-radius: 12px;
  text-decoration: none;
  transition: var(--transition);
}

.app-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.app-button i {
  margin-right: 12px;
  font-size: 24px;
}

.app-button-text {
  text-align: left;
}

.app-button-small {
  font-size: 12px;
  margin-bottom: 2px;
}

.app-button-big {
  font-size: 16px;
  font-weight: 500;
}

/* 评价区 */
.testimonials-section {
  padding: 60px 0;
  background-color: rgba(248, 250, 255, 0.7);
}

.testimonials-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.testimonial-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  position: relative;
}

.quote-icon {
  position: absolute;
  top: -10px;
  left: 24px;
  font-size: 60px;
  color: rgba(75,163,247,0.1);
  z-index: 0;
}

.testimonial-text {
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
  font-style: italic;
  color: var(--text-sub);
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.author-img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 12px;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
  border: 2px solid white;
}

.author-info {
  font-size: 14px;
}

.author-name {
  font-weight: 600;
  color: var(--text-main);
}

/* 页脚 */
footer {
  background-color: #e8f0fa;
  padding: 60px 0 30px;
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-logo-text {
  font-size: 18px;
  font-weight: 600;
}

.footer-desc {
  color: var(--text-sub);
  font-size: 14px;
  max-width: 300px;
  margin-bottom: 16px;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

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

.footer-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  margin-bottom: 12px;
}

.footer-link a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-link a:hover {
  color: var(--main-color);
}

.copyright {
  text-align: center;
  color: var(--text-sub);
  font-size: 14px;
  margin-top: 50px;
  padding-top: 20px;
  border-top: 1px solid rgba(106, 122, 140, 0.1);
}

.beian-link {
  color: var(--text-sub);
  text-decoration: none;
  margin-left: 10px;
  transition: var(--transition);
}

.beian-link:hover {
  color: var(--main-color);
}

/* 动画效果 */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式调整 */
@media (max-width: 768px) {
  .navbar {
    padding: 12px 0;
  }
  
  .nav-links {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .mobile-nav {
    display: flex;
  }
  
  .hero {
    padding: 60px 0 30px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .preview-card {
    padding: 20px;
  }
  
  .carousel img {
    width: 120px;
    height: 260px;
  }
  
  .feature-card {
    padding: 20px;
  }
  
  .breathing-card {
    padding: 24px;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 480px) {
  .logo-hero {
    width: 100px;
    height: 100px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
  
  .carousel img {
    width: 90px;
    height: 196px;
  }
  
  .section-title {
    font-size: 26px;
  }
  
  .breathing-title, .cta-title {
    font-size: 24px;
  }
  
  .breathing-item-title {
    font-size: 16px;
  }
  
  .app-buttons {
    flex-direction: column;
    align-items: center;
  }
}