:root {
  --primary: #FF5C38;
  --primary-dark: #E8451F;
  --primary-light: #FFE8E0;
  --secondary: #2D7575;
  --secondary-light: #E0F0F0;
  --accent: #F2B84B;
  --accent-light: #FFF3D6;
  --bg-main: #FDF6EC;
  --bg-alt: #FFF0E8;
  --text-main: #403E3A;
  --text-muted: #8B7F76;
  --white: #FFFFFF;
  --shadow-sm: 0 2px 12px rgba(64, 62, 58, 0.06);
  --shadow-md: 0 8px 24px rgba(64, 62, 58, 0.10);
  --shadow-lg: 0 16px 48px rgba(64, 62, 58, 0.14);
  --radius: 16px;
  --radius-lg: 24px;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
}

::selection { background: var(--primary); color: #fff; }

::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--bg-main); }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }

.section { padding:100px 0; position: relative; }
.section:nth-child(even) { background: var(--bg-alt); }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 250, 245, 0.92);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(240, 233, 226, 0.8);
  box-shadow: 0 2px 20px rgba(64, 62, 58, 0.04);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
  opacity: 0.7;
}

.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: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--primary);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 6px 16px rgba(255, 92, 56, 0.3);
  position: relative;
  overflow: hidden;
}

.logo-icon::before {
  content: '';
  position: absolute;
  top: -6px;
  right: -6px;
  width: 18px;
  height: 18px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transition: width 0.3s ease;
}

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

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

.nav-cta {
  padding: 10px 24px;
  border-radius: 30px;
  color: #fff !important;
  font-weight: 600 !important;
  background: linear-gradient(135deg, var(--primary), #FF7A58);
  box-shadow: 0 6px 16px rgba(255, 92, 56, 0.3);
  transition: all 0.3s ease !important;
}

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

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 92, 56, 0.4);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid #E8DCD0;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-main);
  background: var(--white);
  line-height: 1;
}

.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 92, 56, 0.14), transparent 35%),
    radial-gradient(circle at 10% 80%, rgba(45, 117, 117, 0.10), transparent 40%),
    linear-gradient(180deg, var(--bg-main) 0%, #FFF9F4 100%);
}

.hero::before {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(242, 184, 75, 0.2), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 20px;
  background: var(--accent-light);
  color: #D68B14;
  border: 1px solid rgba(242, 184, 75, 0.3);
  box-shadow: 0 2px 8px rgba(242, 184, 75, 0.15);
}

.hero h1 {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero h1 .text-accent {
  background: linear-gradient(120deg, var(--primary), #FF9678);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 6px solid #fff;
  transform: rotate(2deg);
  position: relative;
  transition: transform 0.4s ease;
}

.hero-image:hover {
  transform: rotate(0deg) scale(1.02);
}

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

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(255, 92, 56, 0.15), transparent 50%);
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
  line-height: 1.4;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #FF7A58);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 92, 56, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(255, 92, 56, 0.45);
}

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

.btn-outline:hover {
  background: var(--secondary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(45, 117, 117, 0.25);
}

.section-label {
  display: inline-block;
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin-right: 8px;
  vertical-align: middle;
  border-radius: 2px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: '';
  display: block;
  width: 52px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  margin-top: 14px;
}

.section-desc {
  max-width: 600px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 44px;
  font-size: 1rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid #F0E9E2;
  border-top: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(255, 92, 56, 0.06), transparent 70%);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.category-card:nth-child(2n) {
  border-top-color: var(--secondary);
}

.category-card:nth-child(2n) .card-link {
  color: var(--secondary);
}

.category-card:nth-child(2n) .card-icon {
  background: linear-gradient(135deg, var(--secondary-light), #F0FAFA);
  color: var(--secondary);
}

.category-card:nth-child(3n) {
  border-top-color: var(--accent);
}

.category-card:nth-child(3n) .card-link {
  color: #D68B14;
}

.category-card:nth-child(3n) .card-icon {
  background: linear-gradient(135deg, var(--accent-light), #FFF9E8);
  color: #D68B14;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-top-width: 5px;
}

.category-card:hover::before {
  transform: scale(2);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}

.category-card:hover .card-icon {
  transform: scale(1.1) rotate(-6deg);
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}

.card-link::after {
  content: '→';
  transition: transform 0.2s ease;
}

.card-link:hover::after {
  transform: translateX(4px);
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  border: 4px solid #fff;
}

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

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 92, 56, 0.12), rgba(45, 117, 117, 0.12));
}

.feature-text h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}

.feature-text p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
  font-size: 1rem;
}

.feature-list {
  list-style: none;
  margin-top: 12px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 500;
  color: var(--text-main);
  font-size: 0.95rem;
}

.feature-list li::before {
  content: '✓';
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: inset 0 1px 2px rgba(255,255,255,0.6);
}

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

.stat-item {
  background: var(--white);
  padding: 36px 20px;
  border-radius: 20px;
  border: 1px solid #F0E9E2;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.stat-item:hover::after {
  transform: scaleX(1);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  display: block;
}

.stat-number::after {
  content: '';
  display: block;
  width: 28px;
  height: 4px;
  background: var(--accent);
  border-radius: 4px;
  margin: 12px auto 0;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 20px;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #F0E9E2;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-8px) rotate(0.4deg);
  box-shadow: var(--shadow-md);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.content-wall-item:hover img {
  transform: scale(1.06);
}

.content-wall-body {
  padding: 24px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.content-wall-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

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

.faq-item {
  background: var(--white);
  border: 1px solid #F0E9E2;
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(255, 92, 56, 0.3);
  box-shadow: var(--shadow-sm);
}

.faq-item.open {
  border-color: rgba(255, 92, 56, 0.2);
  box-shadow: 0 6px 20px rgba(255, 92, 56, 0.08);
}

.faq-question {
  padding: 18px 24px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  gap: 16px;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  transition: all 0.3s ease;
  font-weight: 300;
  flex-shrink: 0;
  line-height: 1;
}

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

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  line-height: 1.8;
  display: none;
  font-size: 0.95rem;
  border-top: 1px dashed #F0E9E2;
  margin-top: 0;
}

.faq-item.open .faq-answer {
  display: block;
  padding-top: 16px;
}

.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: var(--radius-lg);
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #FF7A58 50%, var(--accent));
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(255, 92, 56, 0.3);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.12);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -5%;
  width: 240px;
  height: 240px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 12px rgba(0,0,0,0.1);
}

.cta-banner p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
  font-size: 1rem;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15) !important;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2) !important;
}

.site-footer {
  background: #F2EAE3;
  padding: 64px 0 28px;
  border-top: 3px solid transparent;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-top: 12px;
  max-width: 280px;
  font-size: 0.9rem;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 0;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(64, 62, 58, 0.1);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.text-accent {
  color: var(--primary);
}

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

.text-center .section-title::after {
  margin-left: auto;
  margin-right: auto;
}

.text-center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  color: var(--text-muted);
  line-height: 1.8;
  text-align: center;
}

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

@media (max-width: 992px) {
  .hero h1 { font-size: 2.8rem; }
  .hero .container { gap: 40px; }
  .feature-block { gap: 40px; }
  .footer-grid { gap: 32px; }
}

@media (max-width: 768px) {
  .hero { min-height: 70vh; padding: 40px 0; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-image { transform: none; max-width: 400px; margin: 0 auto; }
  .hero h1 { font-size: 2.4rem; }
  .section { padding: 70px 0; }
  .section-title { font-size: 2rem; }

  .main-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--bg-main);
    padding: 24px;
    box-shadow: 0 20px 40px rgba(64, 62, 58, 0.12);
    border-radius: 0 0 20px 20px;
    gap: 20px;
    border-bottom: 3px solid var(--primary);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    font-size: 1.05rem;
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid #F0E9E2;
  }

  .nav-cta {
    width: auto;
    text-align: center;
    padding: 12px 20px;
  }

  .menu-toggle { display: flex; }

  .feature-block { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-banner { padding: 48px 24px; }
  .cta-banner h2 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .hero { min-height: auto; padding: 48px 0 56px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { justify-content: center; width: 100%; }

  .cards-grid,
  .content-wall,
  .stats-bar { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section-title { font-size: 1.6rem; }
  .stat-number { font-size: 2.2rem; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: 1.5rem; }
  .header-inner { padding: 0 16px; }
}