```css
:root {
  --paper: #FAF3E7;
  --paper-deep: #F0E5D5;
  --ink: #2B2D42;
  --crimson: #E63946;
  --teal: #2A9D8F;
  --amber: #F4A261;
  --white: #FFFFFF;
  --shadow-sm: 0 2px 10px rgba(43,45,66,0.06);
  --shadow-md: 0 6px 24px rgba(43,45,66,0.10);
  --shadow-lg: 0 10px 40px rgba(43,45,66,0.14);
}

*, *::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-color: var(--paper);
  background-image:
    radial-gradient(rgba(43,45,66,0.04) 1px, transparent 1px),
    radial-gradient(rgba(230,57,70,0.03) 1px, transparent 1px);
  background-size: 24px 24px, 48px 48px;
  background-position: 0 0, 24px 24px;
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.section {
  padding: 96px 0;
  position: relative;
}

.section::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 28px;
  width: 30px;
  height: 30px;
  border-top: 3px solid var(--amber);
  border-left: 3px solid var(--amber);
  opacity: 0.5;
  border-radius: 6px 0 0 0;
  pointer-events: none;
}

.section::after {
  content: '';
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 120px;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--crimson) 0 4px,
    var(--amber) 4px 8px,
    transparent 8px 12px
  );
  opacity: 0.4;
  pointer-events: none;
}

.section:nth-child(even) {
  background-color: var(--paper-deep);
  background-image: radial-gradient(rgba(43,45,66,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 243, 231, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(43,45,66,0.08);
  box-shadow: 0 1px 0 rgba(255,255,255,0.7);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--amber);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(43,45,66,0.18);
}

.logo-icon::before {
  content: '▶';
  font-size: 0.8rem;
  color: var(--paper);
  transition: transform 0.3s;
}

.logo:hover .logo-icon::before {
  transform: scale(1.15);
}

.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: var(--ink);
  transition: color 0.2s;
  position: relative;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--crimson);
  transition: width 0.25s;
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

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

.nav-cta {
  padding: 9px 22px;
  border-radius: 40px;
  background: var(--crimson);
  color: var(--white) !important;
  font-weight: 600;
  box-shadow: 0 3px 14px rgba(230,57,70,0.28);
  transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(230,57,70,0.35);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  width: 42px;
  height: 42px;
  font-size: 1.2rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: rgba(230,57,70,0.08);
}

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(250,243,231,1) 0%, rgba(240,229,213,0.6) 100%);
  padding-top: 68px;
}

.hero::before {
  content: '光影随行';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  font-size: 10rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(230,57,70,0.04);
  pointer-events: none;
  z-index: 0;
  letter-spacing: -0.05em;
  text-align: center;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(244,162,97,0.25) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  max-width: 680px;
  flex: 1.1;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 4px 16px 4px 16px;
  background: var(--teal);
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: 3px;
  text-transform: uppercase;
  box-shadow: 0 3px 10px rgba(42,157,143,0.3);
}

.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.6rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
  background-image: linear-gradient(180deg, transparent 62%, rgba(244,162,97,0.4) 62%);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.8;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
  border-left: 3px solid var(--teal);
  padding-left: 18px;
}

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

.hero-image {
  flex: 0.9;
  border-radius: 24px;
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 2;
  padding: 8px;
  transform: rotate(1.2deg);
  transition: transform 0.4s;
}

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

.hero-image::before {
  content: '';
  position: absolute;
  inset: 12px;
  border: 2px dashed var(--amber);
  border-radius: 12px;
  z-index: 2;
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
  position: relative;
  z-index: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.25s ease;
  font-size: 0.95rem;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--crimson) 0%, #d62f4b 100%);
  color: var(--white);
  box-shadow: 0 4px 18px rgba(230,57,70,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(230,57,70,0.38);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--ink);
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(43,45,66,0.15);
}

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  margin-bottom: 14px;
  padding: 6px 16px;
  background: var(--teal);
  color: var(--white);
  border-radius: 4px 16px 4px 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 52px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--crimson), var(--amber));
}

.text-center .section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

.section-desc {
  max-width: 640px;
  opacity: 0.7;
  margin-bottom: 48px;
  line-height: 1.8;
  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: 20px;
  padding: 30px 26px;
  border: none;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 30px;
  right: 30px;
  height: 4px;
  background: linear-gradient(90deg, var(--crimson), var(--amber));
  border-radius: 0 0 6px 6px;
}

.category-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8px;
  background-image: radial-gradient(circle at 4px 0, rgba(43,45,66,0.08) 3px, transparent 3px);
  background-size: 16px 8px;
  background-repeat: repeat-x;
  opacity: 0.5;
}

.category-card:hover {
  transform: translateY(-5px) rotate(-0.4deg);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--teal), #205A53);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  box-shadow: 0 4px 14px rgba(42,157,143,0.3);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--crimson);
  text-decoration: none;
  margin-top: 8px;
}

.card-link::after {
  content: '→';
  transition: transform 0.25s;
}

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

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

.feature-block:nth-child(even) .feature-image {
  order: 2;
}

.feature-block:nth-child(even) .feature-text {
  order: 1;
}

.feature-image {
  border-radius: 20px;
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-md);
  position: relative;
}

.feature-image::before {
  content: '';
  position: absolute;
  inset: 14px;
  border: 2px dashed var(--amber);
  border-radius: 14px;
  z-index: 2;
  pointer-events: none;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
}

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.feature-text p {
  opacity: 0.75;
  line-height: 1.8;
  margin-bottom: 20px;
}

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

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: var(--teal);
  color: var(--white);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  box-shadow: 0 2px 8px rgba(42,157,143,0.35);
}

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

.stat-item {
  background: var(--white);
  padding: 30px 20px;
  border-radius: 20px;
  border: none;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--amber) 0 6px, transparent 6px 12px);
}

.stat-number {
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--crimson), var(--amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  opacity: 0.6;
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

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

.content-wall-item {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s;
  position: relative;
}

.content-wall-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8px;
  background-image: radial-gradient(circle at 4px 4px, rgba(43,45,66,0.08) 3px, transparent 3px);
  background-size: 16px 8px;
  background-repeat: repeat-x;
  opacity: 0.5;
}

.content-wall-item:hover {
  transform: translateY(-5px) rotate(0.5deg);
  box-shadow: var(--shadow-md);
}

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

.content-wall-item:hover img {
  transform: scale(1.04);
}

.content-wall-body {
  padding: 20px 22px;
  border-top: 3px solid var(--paper-deep);
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.content-wall-body p {
  font-size: 0.85rem;
  opacity: 0.65;
  line-height: 1.6;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 10px;
}

.faq-item {
  background: var(--white);
  border: none;
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s, border-color 0.3s;
  border-left: 4px solid transparent;
}

.faq-item.open {
  background: var(--white);
  box-shadow: var(--shadow-md);
  border-left-color: var(--crimson);
}

.faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 1rem;
  color: var(--ink);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--crimson);
  transition: transform 0.3s;
  flex-shrink: 0;
  line-height: 1;
}

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

.faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.75;
  line-height: 1.8;
  font-size: 0.95rem;
}

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

@keyframes faqIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 0.75;
    transform: translateY(0);
  }
}

.cta-banner {
  padding: 64px 48px;
  text-align: center;
  border-radius: 30px;
  background: linear-gradient(135deg, var(--crimson) 0%, #d62f4b 35%, var(--amber) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(230,57,70,0.35);
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 40%, rgba(255,255,255,0.25) 0%, transparent 40%),
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(255,255,255,0.08) 14px 28px);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  color: var(--white);
  position: relative;
  z-index: 2;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.cta-banner p {
  position: relative;
  z-index: 2;
  opacity: 0.9;
  max-width: 480px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.cta-banner .btn-primary {
  background: var(--white);
  color: var(--crimson);
  box-shadow: 0 4px 22px rgba(0,0,0,0.15);
  position: relative;
  z-index: 2;
}

.site-footer {
  padding: 72px 0 28px;
  background: var(--paper-deep);
  position: relative;
  margin-top: 80px;
}

.site-footer::before {
  content: '';
  display: block;
  max-width: 1200px;
  height: 5px;
  margin: 0 auto 48px;
  background: repeating-linear-gradient(
    90deg,
    var(--crimson) 0 5px,
    var(--amber) 5px 10px,
    var(--teal) 10px 15px,
    transparent 15px 20px
  );
  border-radius: 3px;
  opacity: 0.7;
}

.site-footer .container {
  position: relative;
}

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

.footer-brand h4 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.footer-brand p {
  opacity: 0.75;
  line-height: 1.7;
  max-width: 320px;
  font-size: 0.9rem;
}

.footer-col h4 {
  font-size