:root {
  --bg: #FDF6F0;
  --bg-alt: #F8F1EB;
  --card-bg: #FFFFFF;
  --primary: #E85D75;
  --primary-dark: #D94A62;
  --secondary: #3D8B7D;
  --accent: #F2A65A;
  --ink: #3E342F;
  --ink-light: #8A7B74;
  --line: #D8CFC8;
}

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

::selection {
  background: var(--accent);
  color: var(--ink);
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 10px;
  border: 2px solid var(--ink);
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background-color: var(--bg);
  background-image: radial-gradient(rgba(232, 93, 117, 0.07) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.section {
  padding: 80px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--bg-alt);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 246, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--ink);
}

.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: 900;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  transform: rotate(-6deg);
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--primary);
  border-radius: 3px;
  transition: width 0.25s ease;
}

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

.nav-cta {
  background: var(--secondary);
  color: #fff !important;
  padding: 9px 22px;
  border-radius: 30px;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  font-weight: 700;
  transition: all 0.2s;
}

.nav-cta:hover {
  box-shadow: 1px 1px 0 var(--ink);
  transform: translate(2px, 2px);
}

.menu-toggle {
  display: none;
}

/* ===== 首页 Hero ===== */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 110px 0 60px;
  background: linear-gradient(135deg, rgba(242, 166, 90, 0.1), rgba(232, 93, 117, 0.06));
}

.hero::before {
  content: '';
  position: absolute;
  right: 4%;
  top: 12%;
  width: 260px;
  height: 260px;
  border-radius: 40px;
  background: linear-gradient(135deg, #FCE4E8, #F8C1CC);
  border: 2px solid var(--ink);
  transform: rotate(12deg);
  z-index: 0;
  pointer-events: none;
}

.hero::after {
  content: '✦';
  position: absolute;
  right: 9%;
  top: 26%;
  font-size: 4rem;
  color: var(--accent);
  z-index: 1;
  opacity: 0.7;
  pointer-events: none;
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 20px;
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  transform: rotate(-3deg);
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1.5px;
  text-shadow: 3px 3px 0 rgba(232, 93, 117, 0.2);
}

.hero p {
  font-size: 1.1rem;
  color: var(--ink-light);
  max-width: 560px;
  margin-bottom: 34px;
}

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

.hero-image {
  position: relative;
  z-index: 2;
  border: 2px solid var(--ink);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 8px 8px 0 var(--accent);
  background: #fff;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  border: 2px solid var(--ink);
  text-decoration: none;
  transition: all 0.2s;
  box-shadow: 4px 4px 0 var(--ink);
}

.btn:hover {
  box-shadow: 1px 1px 0 var(--ink);
  transform: translate(3px, 3px);
}

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

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
}

.btn-outline:hover {
  background: var(--bg);
}

/* ===== 标签 / 标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 14px;
  background: var(--secondary);
  color: #fff;
  padding: 4px 16px;
  border-radius: 30px;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  transform: rotate(-2deg);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -1px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 8px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 2.5 0.5, 5 3 T 10 3' fill='none' stroke='%23E85D75' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat bottom center / 100% 100%;
}

.section-desc {
  max-width: 620px;
  color: var(--ink-light);
  margin-bottom: 44px;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
}

.category-card {
  background: var(--card-bg);
  border: 2px solid var(--ink);
  border-radius: 18px;
  padding: 32px 28px;
  box-shadow: 5px 5px 0 var(--secondary);
  transition: all 0.2s;
}

.category-card:hover {
  box-shadow: 2px 2px 0 var(--secondary);
  transform: translate(3px, 3px);
}

.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: #FCE4E8;
  border: 2px solid var(--ink);
  transform: rotate(-6deg);
}

.category-card:nth-child(odd) .card-icon {
  background: #E4EFEC;
  transform: rotate(6deg);
}

.category-card:nth-child(3n) .card-icon {
  background: #FCE9D8;
  transform: rotate(-3deg);
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--primary);
  display: inline-block;
}

.card-link::after {
  content: '→';
  margin-left: 4px;
  display: inline-block;
  transition: transform 0.2s;
}

.card-link:hover::after {
  transform: translateX(5px);
}

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

.feature-image {
  border-radius: 20px;
  overflow: hidden;
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 var(--primary);
  background: #fff;
}

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

.feature-text .section-title {
  margin-bottom: 18px;
}

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

.feature-list li {
  padding: 7px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: var(--primary);
  font-size: 1.1rem;
}

/* ===== 数据条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 30px 20px;
  border-radius: 20px;
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--accent);
  background: var(--card-bg);
  transition: all 0.2s;
}

.stat-item:hover {
  box-shadow: 2px 2px 0 var(--accent);
  transform: translate(3px, 3px);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--ink-light);
  margin-top: 8px;
  font-weight: 500;
}

/* ===== 内容墙 ===== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}

.content-wall-item {
  border-radius: 18px;
  overflow: hidden;
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--secondary);
  background: var(--card-bg);
  transition: all 0.2s;
}

.content-wall-item:hover {
  box-shadow: 2px 2px 0 var(--secondary);
  transform: translate(3px, 3px);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 2px solid var(--ink);
}

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

.content-wall-body h3 {
  font-weight: 800;
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.content-wall-body p {
  color: var(--ink-light);
  font-size: 0.85rem;
}

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

.faq-item {
  border: 2px solid var(--ink);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: var(--card-bg);
  box-shadow: 3px 3px 0 var(--line);
  transition: all 0.2s;
}

.faq-item:hover {
  box-shadow: 4px 4px 0 var(--accent);
}

.faq-item.open {
  box-shadow: 5px 5px 0 var(--accent);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  transition: transform 0.2s;
  color: var(--primary);
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  color: var(--ink-light);
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

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

/* ===== CTA 横幅 ===== */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: 24px;
  border: 2px solid var(--ink);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 8px 8px 0 var(--secondary);
  color: #fff;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
}

.cta-banner .btn-primary:hover {
  background: #f8f1eb;
}

/* ===== 页脚 ===== */
.site-footer {
  margin-top: 40px;
  padding: 60px 0 30px;
  background: #F0E9E4;
  border-top: 2px solid var(--ink);
  color: var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--ink-light);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-col h4 {
  font-weight: 800;
  font-size: 0.9rem;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  color: var(--ink-light);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 44px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--ink-light);
}

/* ===== 工具类 ===== */
.text-accent {
  color: var(--primary);
}

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

.seo-description {
  max-width: 620px;
  margin: 0 auto 52px;
  color: var(--ink-light);
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .feature-block {
    gap: 40px;
  }

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

  .hero h1 {
    font-size: 2.6rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .feature-block {
    grid-template-columns: 1fr;
  }

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

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

  .main-nav {
    display: none;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--bg);
    padding: 20px 24px;
    border-bottom: 2px solid var(--ink);
    box-shadow: 0 8px 0 rgba(232, 93, 117, 0.15);
    gap: 18px;
    align-items: flex-start;
  }

  .menu-toggle {
    display: flex;
    width: 42px;
    height: 42px;
    background: var(--primary);
    border: 2px solid var(--ink);
    border-radius: 12px;
    box-shadow: 2px 2px 0 var(--ink);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
  }

  .hero {
    padding: 90px 0 50px;
  }

  .hero::before,
  .hero::after {
    display: none;
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.4rem;
  }
}

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

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

  .cta-banner {
    padding: 44px 18px;
  }

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