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

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: #FFFAF5;
  color: #4A3B52;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 核心布局 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section:nth-child(even) {
  background: #FFF8F0;
}

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 250, 245, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(232, 115, 74, 0.12);
  color: #4A3B52;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  color: #4A3B52;
  letter-spacing: -0.3px;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  background: linear-gradient(135deg, #E8734A, #F0A060);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 2px 10px rgba(232, 115, 74, 0.25);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #5C4D6B;
  transition: color 0.25s, transform 0.25s;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #E8734A;
  border-radius: 2px;
  transition: width 0.25s ease;
}

.main-nav a:hover {
  color: #E8734A;
  transform: translateY(-1px);
}

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

.nav-cta {
  padding: 9px 22px;
  border-radius: 24px;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, #E8734A, #F08C5C);
  box-shadow: 0 3px 14px rgba(232, 115, 74, 0.3);
  transition: transform 0.25s, box-shadow 0.25s !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 22px rgba(232, 115, 74, 0.4) !important;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1.5px solid rgba(74, 59, 82, 0.2);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: rgba(232, 115, 74, 0.06);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #4A3B52;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* 首页Hero */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  gap: 48px;
  padding-top: 68px;
  flex-wrap: wrap;
}

.hero-content {
  max-width: 720px;
  flex: 1 1 380px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 18px;
  background: rgba(78, 205, 196, 0.13);
  color: #3A8F88;
  letter-spacing: 0.6px;
  border: 1px solid rgba(78, 205, 196, 0.25);
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.18;
  margin-bottom: 20px;
  font-weight: 800;
  color: #3D2E4E;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 34px;
  color: #5C4D6B;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: 16px;
  overflow: hidden;
  flex: 1 1 340px;
  max-width: 480px;
  box-shadow: 0 16px 48px rgba(232, 115, 74, 0.12), 0 4px 12px rgba(74, 59, 82, 0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}

.hero-image:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 56px rgba(232, 115, 74, 0.16), 0 6px 16px rgba(74, 59, 82, 0.08);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: 26px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s, border-color 0.25s;
  font-size: 0.95rem;
  letter-spacing: 0.2px;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #E8734A, #F08C5C);
  box-shadow: 0 4px 16px rgba(232, 115, 74, 0.32);
}

.btn-primary:hover {
  box-shadow: 0 7px 24px rgba(232, 115, 74, 0.44);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1.8px solid #4A3B52;
  color: #4A3B52;
}

.btn-outline:hover {
  background: #4A3B52;
  color: #FFFAF5;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(74, 59, 82, 0.15);
}

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  margin-bottom: 12px;
  color: #E8734A;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 14px;
  font-weight: 800;
  color: #3D2E4E;
  letter-spacing: -0.4px;
  line-height: 1.25;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  color: #5C4D6B;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  border-radius: 14px;
  padding: 30px 26px;
  border: 1px solid rgba(74, 59, 82, 0.08);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  background: #fff;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #E8734A, #4ECDC4);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
  border-radius: 0 0 3px 3px;
}

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

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(232, 115, 74, 0.1), 0 2px 8px rgba(74, 59, 82, 0.06);
  border-color: rgba(232, 115, 74, 0.2);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #3D2E4E;
}

.category-card p {
  font-size: 0.9rem;
  color: #5C4D6B;
  opacity: 0.75;
  line-height: 1.6;
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: rgba(232, 115, 74, 0.08);
  color: #E8734A;
  transition: transform 0.25s, background 0.25s;
}

.category-card:hover .card-icon {
  transform: scale(1.08);
  background: rgba(232, 115, 74, 0.14);
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: #E8734A;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.25s, color 0.25s;
  margin-top: 8px;
}

.card-link:hover {
  gap: 8px;
  color: #D0653D;
}

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(232, 115, 74, 0.1), 0 2px 8px rgba(74, 59, 82, 0.05);
  transition: transform 0.3s;
}

.feature-image:hover {
  transform: translateY(-3px);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #3D2E4E;
  letter-spacing: -0.3px;
}

.feature-text p {
  color: #5C4D6B;
  opacity: 0.75;
  line-height: 1.7;
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: #4A3B52;
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: #4ECDC4;
  font-size: 1.1rem;
  background: rgba(78, 205, 196, 0.13);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* 数据条 */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 28px 20px;
  border-radius: 14px;
  border: 1px solid rgba(74, 59, 82, 0.07);
  background: #fff;
  transition: transform 0.25s, box-shadow 0.25s;
}

.stat-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 22px rgba(232, 115, 74, 0.08);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: #E8734A;
  letter-spacing: -0.5px;
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: #5C4D6B;
  font-weight: 500;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(74, 59, 82, 0.07);
  transition: transform 0.25s, box-shadow 0.25s;
  background: #fff;
}

.content-wall-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(232, 115, 74, 0.1), 0 2px 8px rgba(74, 59, 82, 0.05);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.content-wall-body {
  padding: 22px 20px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #3D2E4E;
}

.content-wall-body p {
  font-size: 0.88rem;
  color: #5C4D6B;
  opacity: 0.7;
  line-height: 1.6;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid rgba(74, 59, 82, 0.08);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.faq-item:hover {
  border-color: rgba(232, 115, 74, 0.2);
}

.faq-item.open {
  border-color: rgba(232, 115, 74, 0.3);
  box-shadow: 0 4px 20px rgba(232, 115, 74, 0.08);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #3D2E4E;
  font-size: 1rem;
  user-select: none;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: #E8734A;
  transition: transform 0.3s;
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  color: #5C4D6B;
  font-size: 0.93rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqFadeIn 0.3s ease;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 0.7;
    transform: translateY(0);
  }
}

/* CTA横幅 */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, #E8734A, #F0A060, #E8734A);
  background-size: 200% 200%;
  animation: ctaGradient 6s ease infinite;
  box-shadow: 0 12px 40px rgba(232, 115, 74, 0.25);
}

@keyframes ctaGradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #E8734A;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
  font-weight: 700;
}

.cta-banner .btn-primary:hover {
  box-shadow: 0 7px 26px rgba(0, 0, 0, 0.18);
  background: #fffefc;
  color: #D0653D;
}

/* 页脚 */
.site-footer {
  padding: 56px 0 28px;
  background: #F5EDE8;
  color: #4A3B52;
}

.site-footer .container {
}

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

.footer-brand {
}

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.65;
  line-height: 1.6;
  color: #5C4D6B;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #3D2E4E;
  letter-spacing: 0.3px;
}

.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: #5C4D6B;
  text-decoration: none;
  padding: 4px 0;
  transition: color 0.2s;
  opacity: 0.7;
}

.footer-col a:hover {
  color: #E8734A;
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(74, 59, 82, 0.1);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #5C4D6B;
  opacity: 0.6;
}

/* 工具类 */
.text-accent {
  color: #E8734A;
}

.text-center {
  text-align: center;
}

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: #5C4D6B;
  font-size: 1rem;
  line-height: 1.7;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

/* 响应式 */
@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: #FFFAF5;
    padding: 24px;
    box-shadow: 0 16px 32px rgba(74, 59, 82, 0.1);
    border-bottom: 1px solid rgba(232, 115, 74, 0.1);
    gap: 16px;
    animation: slideDown 0.3s ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .main-nav.open a {
    font-size: 1rem;
    padding: 8px 0;
  }

  .hero {
    flex-direction: column;
    gap: 32px;
    min-height: auto;
    padding-top: 88px;
    padding-bottom: 40px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-image {
    max-width: 100%;
    flex: auto;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .cta-banner {
    padding: 40px 20px;
    border-radius: 12px;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .container {
    padding: 0 16px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .category-card {
    padding: 22px 18px;
  }
}