/* ============================================
   天机运势官网 - 统一样式表
   ============================================ */

/* CSS 变量定义 */
:root {
  /* 主题色 */
  --color-primary: #8B0000;
  --color-gold: #DAA520;
  --color-ivory: #FFFFF0;
  --color-china-red: #C41E3A;
  --color-text-dark: #2C1810;
  --color-text-light: #666666;
  --color-white: #FFFFFF;
  --color-bg-light: #FFF8F0;
  --color-border: #E8D8C8;
  --color-shadow: rgba(139, 0, 0, 0.1);
  
  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* 圆角 */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  
  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  
  /* 过渡 */
  --transition: all 0.3s ease;
}

/* 重置样式 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-ivory);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  color: var(--color-china-red);
}

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

/* ============================================
   导航栏样式
   ============================================ */
.header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-china-red) 100%);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px var(--color-shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.logo::before {
  content: "☯";
  font-size: 1.8rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-menu a {
  color: var(--color-white);
  font-size: 1rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-menu a:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-gold);
}

/* 汉堡菜单按钮（移动端） */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 3px;
  background-color: var(--color-white);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   主要内容区域
   ============================================ */
main {
  flex: 1;
}

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

.section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  font-size: 2rem;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-china-red) 50%, #8B4513 100%);
  color: var(--color-white);
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-md);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 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: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-text-dark);
}

.btn-primary:hover {
  background-color: #E8B830;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(218, 162, 32, 0.4);
}

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

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* ============================================
   功能卡片
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: 0 4px 20px var(--color-shadow);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(139, 0, 0, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  font-size: 1.25rem;
}

.feature-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ============================================
   App 截图区域
   ============================================ */
.screenshots {
  background-color: var(--color-bg-light);
}

.screenshots-subtitle {
  text-align: center;
  color: var(--color-text-light);
  margin-top: -0.5rem;
  margin-bottom: var(--spacing-xl);
  font-size: 1rem;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  justify-items: center;
  align-items: start;
}

/* 手机 Mockup 样式 */
.phone-mockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.phone-frame {
  position: relative;
  width: 190px;
  background: #1A1A1A;
  border-radius: 36px;
  padding: 10px;
  box-shadow:
    0 0 0 2px #333,
    0 20px 60px rgba(0, 0, 0, 0.4),
    0 8px 24px rgba(139, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.phone-frame:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 0 0 2px #444,
    0 30px 80px rgba(0, 0, 0, 0.5),
    0 12px 30px rgba(139, 0, 0, 0.3);
}

.phone-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 6px;
  background: #333;
  border-radius: 3px;
  z-index: 2;
}

.phone-screen {
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  background: #000;
  aspect-ratio: 9/19.5;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.phone-label {
  font-size: 0.9rem;
  color: var(--color-text-light);
  text-align: center;
  font-weight: 500;
}

/* 旧的占位符样式（保留兼容性） */
.screenshot-placeholder {
  width: 200px;
  height: 400px;
  background: linear-gradient(135deg, var(--color-border) 0%, #D8C8B8 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
  border: 2px dashed var(--color-border);
  box-shadow: 0 4px 15px var(--color-shadow);
}

/* ============================================
   页面通用排版
   ============================================ */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-china-red) 100%);
  color: var(--color-white);
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
}

.page-header p {
  opacity: 0.9;
}

.page-content {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.page-content h2 {
  color: var(--color-primary);
  font-size: 1.5rem;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-border);
}

.page-content h3 {
  color: var(--color-text-dark);
  font-size: 1.2rem;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.page-content p {
  margin-bottom: var(--spacing-sm);
  text-align: justify;
}

.page-content ul, .page-content ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.page-content li {
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   FAQ 手风琴样式
   ============================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.faq-question {
  width: 100%;
  padding: var(--spacing-md);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-dark);
  transition: var(--transition);
  font-family: var(--font-family);
}

.faq-question:hover {
  background-color: var(--color-bg-light);
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--color-primary);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ============================================
   表单样式
   ============================================ */
.form-container {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px var(--color-shadow);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-text-dark);
}

.form-label .required {
  color: var(--color-china-red);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-family);
  transition: var(--transition);
  background-color: var(--color-white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.form-checkbox label {
  font-size: 0.95rem;
  color: var(--color-text-light);
  cursor: pointer;
}

.form-submit {
  margin-top: var(--spacing-lg);
  width: 100%;
}

.success-message {
  display: none;
  background-color: #E8F5E9;
  color: #2E7D32;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
  margin-top: var(--spacing-md);
  border: 1px solid #A5D6A7;
}

.success-message.show {
  display: block;
}

/* ============================================
   联系信息卡片
   ============================================ */
.contact-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xl);
  box-shadow: 0 4px 15px var(--color-shadow);
  border: 1px solid var(--color-border);
}

.contact-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

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

.contact-info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-dark);
}

.contact-info-item .icon {
  font-size: 1.2rem;
}

/* ============================================
   Footer 样式
   ============================================ */
.footer {
  background: linear-gradient(135deg, var(--color-primary) 0%, #5C0000 100%);
  color: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-gold);
}

.footer-divider {
  width: 100%;
  max-width: 600px;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
  margin: var(--spacing-sm) 0;
}

.footer-copyright {
  font-size: 0.9rem;
  opacity: 0.7;
  text-align: center;
}

.footer-disclaimer {
  font-size: 0.85rem;
  opacity: 0.6;
  text-align: center;
  max-width: 600px;
  line-height: 1.5;
  margin-top: var(--spacing-xs);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
  /* 导航栏响应式 */
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-china-red) 100%);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .nav-menu li:last-child {
    border-bottom: none;
  }
  
  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
  }
  
  .menu-toggle {
    display: block;
  }
  
  /* Hero 响应式 */
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  /* 功能卡片响应式 */
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  /* 截图响应式 */
  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .phone-frame {
    width: 150px;
  }
  
  .screenshot-placeholder {
    width: 150px;
    height: 300px;
    font-size: 0.8rem;
  }
  
  /* 页面标题响应式 */
  .section-title {
    font-size: 1.5rem;
  }
  
  .page-header h1 {
    font-size: 1.5rem;
  }
  
  .page-content {
    padding: var(--spacing-md);
  }
  
  .page-content h2 {
    font-size: 1.3rem;
  }
  
  /* 表单响应式 */
  .form-container {
    padding: var(--spacing-md);
  }
  
  /* Footer 响应式 */
  .footer-links {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.5rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }
  
  .phone-frame {
    width: 130px;
    border-radius: 28px;
    padding: 8px;
  }
  
  .phone-screen {
    border-radius: 22px;
  }
  
  .screenshot-placeholder {
    width: 180px;
    height: 360px;
  }
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* 滚动显示动画 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}