```css
*, *::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: #F5F1E8;
  color: #292622;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: #F2BC3A;
  color: #292622;
}

img {
  display: block;
  max-width: 100%;
}

a, button {
  transition: all 0.25s ease;
}

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

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

.section:nth-child(even) {
  background: #EDE8DC;
}

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(245, 241, 232, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 2px solid #292622;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: #292622;
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  background: #EA5B2A;
  color: #F5F1E8;
  border: 2px solid #292622;
  box-shadow: 3px 3px 0 rgba(41, 38, 34, 0.6);
  font-weight: 800;
}

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

.main-nav li {
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: #292622;
  padding: 4px 0;
  position: relative;
  transition: color 0.2s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background: #F2BC3A;
  border-radius: 3px;
  transition: width 0.3s cubic-bezier(0.77, 0, 0.175, 1);
}

.main-nav a:hover {
  color: #EA5B2A;
}

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

.nav-cta {
  background: #EA5B2A;
  color: #F5F1E8 !important;
  padding: 9px 22px;
  border: 2px solid #292622;
  border-radius: 10px;
  font-weight: 700 !important;
  letter-spacing: 0.02em;
  font-size: 0.85rem !important;
  box-shadow: 3px 3px 0 #292622;
}

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

.nav-cta:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 #292622;
  color: #F5F1E8 !important;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 42px;
  background: transparent;
  border: 2px solid #292622;
  border-radius: 10px;
  cursor: pointer;
  position: relative;
}

.menu-toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 2px;
  background: #292622;
  border-radius: 2px;
  box-shadow: 0 -6px 0 #292622, 0 6px 0 #292622;
}

/* ============ 首页 Hero ============ */
.hero {
  min-height: 72vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
  background-image: radial-gradient(rgba(234, 91, 42, 0.07) 1px, transparent 1px);
  background-size: 28px 28px;
}

.hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 188, 58, 0.35) 0%, transparent 70%);
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  right: 12%;
  bottom: 12%;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 4px solid #0E7C7B;
  background: #F2BC3A;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
  background: #F2BC3A;
  border: 2px solid #292622;
  color: #292622;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 2px 2px 0 rgba(41, 38, 34, 0.5);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  line-height: 1.08;
  margin-bottom: 24px;
  font-weight: 800;
  letter-spacing: -0.045em;
}

.hero p {
  font-size: 1.12rem;
  color: rgba(41, 38, 34, 0.65);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.75;
}

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

.hero-image {
  border-radius: 18px;
  overflow: hidden;
  border: 2px solid #292622;
  box-shadow: 10px 10px 0 rgba(41, 38, 34, 0.12);
  transform: rotate(1deg);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
  max-width: 480px;
}

.hero-image:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 12px 12px 0 rgba(41, 38, 34, 0.14);
}

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

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  border: 2px solid #292622;
  text-decoration: none;
  transition: all 0.2s ease;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: #EA5B2A;
  color: #F5F1E8;
  box-shadow: 4px 4px 0 #292622;
}

.btn-primary:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #292622;
  background: #d94f20;
}

.btn-outline {
  background: #FFFDF8;
  color: #292622;
  box-shadow: 4px 4px 0 rgba(41, 38, 34, 0.15);
}

.btn-outline:hover {
  background: #F2BC3A;
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(41, 38, 34, 0.15);
}

/* ============ 标签 / 标题 ============ */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #0E7C7B;
  margin-bottom: 14px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 4px;
  background: #EA5B2A;
  border-radius: 2px;
}

.text-center .section-label::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 4px;
  background: #EA5B2A;
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 48px;
  font-size: 1rem;
  line-height: 1.7;
}

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

/* ============ 卡片网格 ============ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 26px;
}

.category-card {
  background: #FFFDF8;
  border: 2px solid #292622;
  border-radius: 14px;
  padding: 32px 28px;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 5px 5px 0 rgba(41, 38, 34, 0.12);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 28px;
  height: 28px;
  background: #F2BC3A;
  border-left: 2px solid #292622;
  border-bottom: 2px solid #292622;
  border-radius: 0 14px 0 10px;
  opacity: 0;
  transition: opacity 0.25s;
}

.category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 rgba(41, 38, 34, 0.14);
}

.category-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
  background: #EA5B2A;
  border: 2px solid #292622;
  color: #F5F1E8;
  box-shadow: 2px 2px 0 rgba(41, 38, 34, 0.4);
}

.category-card:nth-child(3n+2) .card-icon {
  background: #0E7C7B;
}

.category-card:nth-child(3n+3) .card-icon {
  background: #F2BC3A;
  color: #292622;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #0E7C7B;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}

.card-link::after {
  content: '→';
  font-size: 1rem;
  transition: transform 0.25s;
}

.card-link:hover {
  color: #EA5B2A;
  gap: 10px;
}

.card-link:hover::after {
  transform: translateX(2px);
}

/* ============ 特性块 ============ */
.feature-block {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  border: 2px solid #292622;
  box-shadow: 8px 8px 0 rgba(41, 38, 34, 0.12);
  transform: rotate(-1deg);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: #FFFDF8;
}

.feature-image:hover {
  transform: rotate(0deg) scale(1.01);
}

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

.feature-text {
  padding: 8px 0;
}

.feature-text h2,
.feature-text h3 {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.feature-text p {
  opacity: 0.65;
  line-height: 1.8;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 9px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  font-size: 0.95rem;
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: #F5F1E8;
  background: #0E7C7B;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  border: 2px solid #292622;
  flex-shrink: 0;
}

/* ============ 数据条 ============ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  text-align: center;
}

.stat-item {
  background: #FFFDF8;
  padding: 32px 20px;
  border-radius: 14px;
  border: 2px solid #292622;
  position: relative;
  box-shadow: 5px 5px 0 rgba(41, 38, 34, 0.1);
  transition: all 0.25s ease;
}

.stat-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(41, 38, 34, 0.12);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  color: #EA5B2A;
  letter-spacing: -0.04em;
  display: block;
}

.stat-number::after {
  content: '';
  display: block;
  width: 36px;
  height: 4px;
  background: #F2BC3A;
  margin: 12px auto 0;
  border-radius: 4px;
}

.stat-label {
  font-size: 0.88rem;
  opacity: 0.55;
  margin-top: 8px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ============ 内容墙 ============ */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}

.content-wall-item {
  background: #FFFDF8;
  border-radius: 14px;
  overflow: hidden;
  border: 2px solid #292622;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 4px 4px 0 rgba(41, 38, 34, 0.1);
}

.content-wall-item:hover {
  transform: translate(-2px, -2px) rotate(-0.4deg);
  box-shadow: 7px 7px 0 rgba(41, 38, 34, 0.12);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 2px solid #292622;
}

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

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.content-wall-body p {
  font-size: 0.88rem;
  opacity: 0.6;
  line-height: 1.65;
}

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

.faq-item {
  background: #FFFDF8;
  border: 2px solid #292622;
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.faq-item:hover {
  box-shadow: 4px 4px 0 rgba(41, 38, 34, 0.12);
}

.faq-item.open {
  background: #FFFDF8;
  box-shadow: 4px 4px 0 rgba(41, 38, 34, 0.12);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  letter-spacing: -0.01em;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: #EA5B2A;
  transition: transform 0.25s ease;
  flex-shrink: 0;
  line-height: 1;
}

.faq-item.open .faq-question::after {
  content: '−';
  color: #0E7C7B;
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  line-height: 1.75;
  font-size: 0.9rem;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ============ CTA 横幅 ============ */
.cta-banner {
  background: #EA5B2A;
  border: 2px solid #292622;
  border-radius: 18px;
  box-shadow: 8px 8px 0 rgba(41, 38, 34, 0.14);
  padding: 64px 24px;
  text-align: center;
  color: #F5F1E8;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -70px;
  left: -70px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 4px solid rgba(245, 241, 232, 0.2);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: 30px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(245, 241, 232, 0.15);
}

.cta-banner h2 {
  color: #F5F1E8;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  opacity: 0.85;
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  font-size: 0.95rem;
}

.cta-banner .btn-primary {
  background: #F5F1E8;
  color: #292622;
  box-shadow: 4px 4px 0 #292622;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  background: #F2BC3A;
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #292622;
}

/* ============ 页脚 ============ */
.site-footer {
  background: #EDE8DC;
  padding: 64px 0 32px;
  border-top: 2px solid #292622;
  margin-top: 0;
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

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

.footer-brand {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .logo-icon {
  width: 36px;
  height: 36px;
  font-size: 0.85rem;
  box-shadow: 2px 2px 0 rgba(41, 38, 34, 0.4);
}

.footer-brand p {
  font-size: 0.85rem;
  opacity: 0.55;
  margin-top: 14px;
  line-height: 1.7;
  font-weight: 400;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: #292622;
}

.footer-col a {
  display: block;
  color: rgba(41, 38, 34, 0.65);
  text-decoration: none;
  padding: 5px 0;
  font-size: 0.88rem;
  transition: 0.2s;
}

.footer-col a:hover {
  color: #EA5B2A;
  padding-left: 5px;
}

.footer-bottom {
  border-top: 2px solid rgba(41, 38, 34, 0.1);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.83rem;
  color: rgba(41, 38, 34, 0.55);
}

/* ============ 工具类 ============ */
.text-accent {
  background: linear-gradient(180deg, transparent 62%, rgba(242, 188, 58, 0.55) 62%);
  display: inline;
  padding: 0 2px;
  font-weight: inherit;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  line-height: 1.75;
}

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

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

/* ============ 响应式 ============ */
@media (max-width: 992px) {
  .hero::before {
    width: 300px;
    height: 300px;
    right: -60px;
  }

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

  .footer-brand {
    grid-column: span 3;
    margin-bottom: 12px;
  }
}

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: span 2;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #F5F1E8;
    padding: 28px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    border-bottom: 2px solid #292622;
    box-shadow: 0 12px 24px rgba(41, 38, 34, 0.08);
  }

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

  .main-nav a {
    font-size: 1rem;
    font-weight: 600;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    padding: 120px 0 80px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .hero-image {
    margin-top: 32px;
  }

  .section {
    padding: 72px 0;
  }
}

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

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

  .footer-brand {
    grid-column: span 1;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  .hero h1 {
    font-size: 2rem;
    letter-spacing: -0.04em;
  }

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

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .cta-banner {
    padding: 48px 20px;
  }

  .header-inner {
    height: 64px;
    padding: 0 16px;
  }

  .main-nav {
    top: 64px;
  }

  .logo {
    font-size: 1.1rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 0.8rem;
  }
}