*, *::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: #FDFCF9;
  color: #3D3835;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
.section:nth-child(even) {
  background: #F6F9F7;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 252, 249, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}
.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: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: #3D3835;
  letter-spacing: -0.3px;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
  color: #fff;
  box-shadow: 0 2px 10px rgba(255, 107, 107, 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: #5C5754;
  transition: color 0.25s, transform 0.25s;
  position: relative;
}
.main-nav a:hover {
  color: #FF6B6B;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #FF6B6B;
  border-radius: 1px;
  transition: width 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.main-nav a:hover::after {
  width: 100%;
}
.nav-cta {
  padding: 9px 22px !important;
  border-radius: 24px !important;
  color: #fff !important;
  font-weight: 700 !important;
  background: linear-gradient(135deg, #FF6B6B, #FF8E6B);
  box-shadow: 0 3px 14px rgba(255, 107, 107, 0.3);
  transition: transform 0.25s, box-shadow 0.25s !important;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(255, 107, 107, 0.4);
}
.nav-cta::after {
  display: none !important;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
}
.menu-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: #3D3835;
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== Hero ===== */
.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  gap: 56px;
  padding-top: 40px;
}
.hero-content {
  max-width: 720px;
  flex: 1;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 24px;
  margin-bottom: 18px;
  background: rgba(255, 107, 107, 0.1);
  color: #FF6B6B;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -0.6px;
  color: #2D2825;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, #FF6B6B, #FF8E6B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 34px;
  color: #5C5754;
  line-height: 1.7;
}
.hero-buttons {
  display: flex;
  gap: 14px;
}
.hero-image {
  border-radius: 20px;
  overflow: hidden;
  flex: 0 0 420px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
  position: relative;
}
.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(255, 107, 107, 0.08));
  z-index: 1;
  border-radius: 20px;
}
.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 26px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.25s, box-shadow 0.25s;
  font-size: 0.95rem;
  letter-spacing: 0.2px;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #FF6B6B, #FF8E6B);
  box-shadow: 0 4px 18px rgba(255, 107, 107, 0.35);
}
.btn-primary:hover {
  box-shadow: 0 8px 26px rgba(255, 107, 107, 0.45);
}
.btn-outline {
  background: transparent;
  border: 2px solid #E0DCD7;
  color: #3D3835;
  transition: border-color 0.25s, background 0.25s;
}
.btn-outline:hover {
  border-color: #FF6B6B;
  background: rgba(255, 107, 107, 0.03);
}

/* ===== 标签/标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  margin-bottom: 14px;
  color: #FF6B6B;
  text-transform: uppercase;
}
.section-title {
  font-size: 2.2rem;
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: #2D2825;
}
.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 42px;
  color: #5C5754;
  font-size: 1.05rem;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.category-card {
  border-radius: 16px;
  padding: 30px 28px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
  background: #fff;
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #FF6B6B, #FF8E6B, #4ECDC4);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
  border-radius: 0 0 2px 2px;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}
.category-card:hover::before {
  transform: scaleX(1);
}
.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: rgba(255, 107, 107, 0.08);
  color: #FF6B6B;
}
.category-card:nth-child(2n) .card-icon {
  background: rgba(78, 205, 196, 0.08);
  color: #4ECDC4;
}
.category-card:nth-child(3n) .card-icon {
  background: rgba(124, 111, 247, 0.08);
  color: #7C6FF7;
}
.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #FF6B6B;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s;
}
.card-link:hover {
  gap: 10px;
}

/* ===== 特性块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.feature-image {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.05);
}
.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}
.feature-text {
}
.feature-list {
  list-style: none;
}
.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  color: #4A4441;
}
.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: #4ECDC4;
  font-size: 1.1rem;
  background: rgba(78, 205, 196, 0.1);
  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: 16px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  background: #fff;
  transition: transform 0.3s, box-shadow 0.3s;
}
.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
}
.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  background: linear-gradient(135deg, #FF6B6B, #FF8E6B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}
.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: #5C5754;
  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: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
  background: #fff;
}
.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.08);
}
.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.content-wall-body {
  padding: 20px;
}
.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #2D2825;
}
.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.65;
  color: #5C5754;
  line-height: 1.5;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-item:hover {
  border-color: rgba(255, 107, 107, 0.2);
}
.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: #3D3835;
  user-select: none;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: #FF6B6B;
  transition: transform 0.3s;
}
.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}
.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  color: #5C5754;
  font-size: 0.95rem;
  line-height: 1.65;
}
.faq-item.open .faq-answer {
  display: block;
  animation: fadeSlideIn 0.35s ease;
}
@keyframes fadeSlideIn {
  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: 20px;
  color: #fff;
  background: linear-gradient(135deg, #FF6B6B, #E0557A, #7C6FF7);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
}
.cta-banner h2 {
  color: #fff;
  position: relative;
  z-index: 1;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.3px;
}
.cta-banner p {
  position: relative;
  z-index: 1;
  opacity: 0.85;
  margin: 12px 0 28px;
  font-size: 1.05rem;
}
.cta-banner .btn-primary {
  background: #fff;
  color: #FF6B6B;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary:hover {
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  color: #E0557A;
}

/* ===== 页脚 ===== */
.site-footer {
  padding: 56px 0 28px;
  background: #F0EFEA;
  color: #3D3835;
}
.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 {
  opacity: 0.6;
  font-size: 0.9rem;
  color: #5C5754;
  line-height: 1.6;
  margin-top: 8px;
}
.footer-col {
}
.footer-col h4 {
  font-weight: 700;
  margin-bottom: 14px;
  font-size: 0.95rem;
  color: #3D3835;
  letter-spacing: 0.3px;
}
.footer-col a {
  display: block;
  text-decoration: none;
  color: #5C5754;
  font-size: 0.88rem;
  padding: 5px 0;
  transition: color 0.25s;
  opacity: 0.7;
}
.footer-col a:hover {
  color: #FF6B6B;
  opacity: 1;
}
.footer-bottom {
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  margin-top: 40px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  color: #8C8682;
  opacity: 0.7;
}

/* ===== 工具类 ===== */
.text-accent {
  color: #FF6B6B;
  font-weight: 700;
}
.text-center {
  text-align: center;
}
.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: #5C5754;
  font-size: 0.95rem;
  line-height: 1.6;
}
.mt-0 {
  margin-top: 0;
}
.mb-0 {
  margin-bottom: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero {
    gap: 36px;
  }
  .hero-image {
    flex: 0 0 340px;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
}
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 40px;
    text-align: center;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero p {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-image {
    flex: 0 0 auto;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
  }
  .feature-block {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .feature-image {
    order: -1;
  }
  .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: #FDFCF9;
    padding: 24px;
    gap: 14px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  }
  .main-nav.open a {
    font-size: 1rem;
    padding: 6px 0;
  }
  .nav-cta {
    display: inline-block;
    text-align: center;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .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;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero-image {
    max-width: 300px;
  }
  .section {
    padding: 48px 0;
  }
  .category-card {
    padding: 22px 18px;
  }
  .stats-bar {
    gap: 14px;
  }
  .stat-item {
    padding: 20px 14px;
  }
  .stat-number {
    font-size: 1.8rem;
  }
}