/* App展示页面公用样式 - 与首页风格保持一致 */

/* ========== 产品Hero区域 ========== */
.product-hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 30%, #fdf2ec 100%);
  color: var(--text-primary, #0f172a);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(251, 191, 36, 0.15), transparent 50%);
  pointer-events: none;
}

.product-hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary, #0f172a);
  position: relative;
  z-index: 1;
}

.product-hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 2rem;
  color: var(--text-secondary, #64748b);
  position: relative;
  z-index: 1;
}

.product-hero .product-image {
  position: relative;
  z-index: 1;
  margin: 2rem 0;
}

.product-hero .product-image img {
  width: 120px;
  height: 120px;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
  transition: transform 0.3s ease;
}

.product-hero .product-image img:hover {
  transform: scale(1.05);
}

/* ========== 下载区域 ========== */
.download-section {
  padding: 4rem 0;
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-primary, #0f172a);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.download-card {
  background: var(--card-backdrop, rgba(255, 255, 255, 0.65));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-xl, 30px);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-soft, 0 25px 60px rgba(15, 23, 42, 0.1));
  border: 1px solid var(--border-light, rgba(255, 255, 255, 0.35));
  transition: all var(--transition-normal, 0.3s ease);
  position: relative;
  overflow: hidden;
}

.download-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(255, 255, 255, 0.35), transparent 55%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.download-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.15);
}

.download-card:hover::after {
  opacity: 1;
}

.download-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary, #0f172a);
}

.download-card p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.6;
}

.download-btn {
  display: inline-block;
  background: #0f172a;
  color: var(--text-white, #ffffff);
  padding: 1rem 2rem;
  border-radius: var(--radius-full, 9999px);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-normal, 0.3s ease);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.25);
  border: none;
  cursor: pointer;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.35);
}

.download-card.coming-soon {
  background: rgba(255, 255, 255, 0.4);
  border: 2px dashed rgba(148, 163, 184, 0.3);
}

.download-card.coming-soon .download-btn {
  background: rgba(148, 163, 184, 0.2);
  color: var(--text-secondary, #64748b);
  cursor: not-allowed;
  box-shadow: none;
}

.download-card.coming-soon .download-btn:hover {
  transform: none;
  box-shadow: none;
}

/* ========== 功能特色区域 ========== */
.features-section {
  padding: 4rem 0;
  background: var(--bg-primary, #ffffff);
  color: var(--text-primary, #0f172a);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--card-backdrop, rgba(255, 255, 255, 0.65));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-xl, 30px);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-soft, 0 25px 60px rgba(15, 23, 42, 0.1));
  border: 1px solid var(--border-light, rgba(255, 255, 255, 0.35));
  transition: all var(--transition-normal, 0.3s ease);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(255, 255, 255, 0.35), transparent 55%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.15);
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: block;
  color: var(--text-primary, #0f172a);
}

.feature-icon i {
  width: 4rem;
  height: 4rem;
  stroke-width: 2;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary, #0f172a);
}

.feature-card p {
  color: var(--text-secondary, #64748b);
  line-height: 1.6;
  margin: 0;
}

/* ========== VIP会员区域 ========== */
.vip-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, #832B63 0%, #1965F7 100%);
  color: var(--text-white, #ffffff);
  position: relative;
  overflow: hidden;
}

.vip-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.1), transparent 50%);
  pointer-events: none;
}

.vip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.vip-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg, 24px);
  padding: 2rem;
  text-align: center;
  transition: all var(--transition-normal, 0.3s ease);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.vip-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(255, 255, 255, 0.2), transparent 55%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.vip-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.vip-card:hover::after {
  opacity: 1;
}

.vip-card > div:first-child {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
  color: var(--text-white, #ffffff);
}

.vip-card > div:first-child i {
  width: 2.5rem;
  height: 2.5rem;
  stroke-width: 1.5;
}

.vip-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-white, #ffffff);
}

.vip-card p {
  margin-bottom: 1.5rem;
  opacity: 0.9;
  line-height: 1.6;
}

/* ========== 应用截图区域 ========== */
.screenshots-section {
  padding: 4rem 0;
  background: var(--bg-secondary, #f8fafc);
  color: var(--text-primary, #0f172a);
}

.screenshots-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin-top: 3rem;
  padding: 1rem 0;
  flex-wrap: wrap;
}

.screenshot-item {
  text-align: center;
  transition: all var(--transition-normal, 0.3s ease);
  position: relative;
}

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

.screenshot-img {
  width: 170px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(15, 23, 42, 0.15);
  transition: all var(--transition-normal, 0.3s ease);
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: var(--bg-primary, #ffffff);
}

.screenshot-item:hover .screenshot-img {
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.25);
  border-color: rgba(251, 191, 36, 0.5);
}

/* ========== 用户评价区域 ========== */
.testimonials-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, #001D54 0%, #00357E 100%);
  color: var(--text-white, #ffffff);
  position: relative;
  overflow: hidden;
}

.testimonials-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.05), transparent 70%);
  pointer-events: none;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg, 24px);
  padding: 2rem;
  transition: all var(--transition-normal, 0.3s ease);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.testimonial-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(255, 255, 255, 0.2), transparent 55%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.testimonial-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.testimonial-card:hover::after {
  opacity: 1;
}

.testimonial-content {
  margin-bottom: 1.5rem;
}

.testimonial-content p {
  font-style: italic;
  line-height: 1.6;
  margin: 0;
  opacity: 0.95;
}

.testimonial-author {
  text-align: right;
}

.testimonial-author strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.testimonial-author span {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ========== 帮助和支持区域 ========== */
.help-section {
  padding: 4rem 0;
  background: var(--bg-primary, #ffffff);
  color: var(--text-primary, #0f172a);
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.help-card {
  background: var(--card-backdrop, rgba(255, 255, 255, 0.65));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-xl, 30px);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-soft, 0 25px 60px rgba(15, 23, 42, 0.1));
  border: 1px solid var(--border-light, rgba(255, 255, 255, 0.35));
  transition: all var(--transition-normal, 0.3s ease);
  position: relative;
  overflow: hidden;
}

.help-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--glow-x, 50%) var(--glow-y, 50%), rgba(255, 255, 255, 0.35), transparent 55%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.help-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.15);
}

.help-card:hover::after {
  opacity: 1;
}

.help-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: block;
  color: var(--text-primary, #0f172a);
}

.help-icon i {
  width: 4rem;
  height: 4rem;
  stroke-width: 2;
}

.help-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary, #0f172a);
}

.help-card p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.6;
}

.help-link {
  display: inline-block;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--text-white, #ffffff);
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-full, 9999px);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-normal, 0.3s ease);
  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.25);
}

.help-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(102, 126, 234, 0.35);
}

/* ========== 通用样式 ========== */
.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-md, 2rem);
  color: inherit;
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
  width: 100%;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #fb923c, #fbbf24);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.5s ease, width 0.5s ease;
}

.section-title.scroll-reveal.revealed::after,
[data-aos].section-title::after {
  opacity: 1;
  width: 120px;
  animation: titleUnderline 0.8s ease forwards;
}

@keyframes titleUnderline {
  from {
    width: 0;
    opacity: 0;
  }
  to {
    width: 120px;
    opacity: 1;
  }
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  color: inherit;
}

/* ========== Footer样式 ========== */
.app-footer {
  background: transparent;
  color: var(--text-dark, #0f172a);
  padding: var(--spacing-lg, 4rem) 0 var(--spacing-sm, 1rem);
  margin-top: 0;
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}

.app-footer .footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.app-footer .footer-section h4 {
  margin-bottom: 1rem;
  font-size: 1.125rem;
  color: var(--text-primary, #0f172a);
}

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

.app-footer .footer-links li {
  margin-bottom: 0.5rem;
}

.app-footer .footer-links a {
  color: var(--text-secondary, #64748b);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}

.app-footer .footer-links a:hover {
  color: var(--text-primary, #0f172a);
}

.app-footer .footer-text {
  color: var(--text-secondary, #64748b);
  margin-top: var(--spacing-sm, 1rem);
}

.app-footer .footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  color: var(--text-secondary, #64748b);
  font-size: 0.875rem;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
  .product-hero {
    padding: 6rem 0 3rem;
  }

  .product-hero h1 {
    font-size: 2rem;
  }

  .product-hero p {
    font-size: 1rem;
  }

  .download-grid,
  .features-grid,
  .vip-grid,
  .testimonials-grid,
  .help-grid {
    grid-template-columns: 1fr;
  }

  .screenshots-grid {
    gap: 1rem;
    padding: 1rem 0;
  }

  .screenshot-img {
    width: 140px;
    border-radius: 15px;
  }

  .feature-card,
  .help-card,
  .vip-card {
    padding: 1.5rem;
  }

  .download-card {
    padding: 1.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .feature-icon {
    font-size: 3rem;
  }

  .feature-icon i {
    width: 3rem;
    height: 3rem;
  }

  .help-icon {
    font-size: 3rem;
  }

  .help-icon i {
    width: 3rem;
    height: 3rem;
  }
}

@media (max-width: 480px) {
  .screenshots-grid {
    gap: 0.75rem;
  }

  .screenshot-img {
    width: 100px;
    border-radius: 12px;
  }

  .product-hero .product-image img {
    width: 100px;
    height: 100px;
  }

  .feature-icon {
    font-size: 2.5rem;
  }

  .feature-icon i {
    width: 2.5rem;
    height: 2.5rem;
  }

  .help-icon {
    font-size: 2.5rem;
  }

  .help-icon i {
    width: 2.5rem;
    height: 2.5rem;
  }
}