```css
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: 'Noto Sans SC', system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: #FDF8F2;
  color: #2B2B32;
  line-height: 1.6;
}

/* 核心布局 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; position: relative; }
.section:nth-child(even) { background: #F4ECE1; }

/* 装饰性背景圆点 — 孟菲斯风格 */
.section::before {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 92, 53, 0.08);
  top: 40px;
  right: -60px;
  pointer-events: none;
  z-index: 0;
}
.section:nth-child(even)::before {
  background: rgba(12, 124, 117, 0.07);
}

/* 导航 — 固定顶部 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(253, 248, 242, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 2px solid #2B2B32;
  box-shadow: 0 2px 0 #FFC53D;
}
.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: 900;
  font-size: 1.35rem;
  text-decoration: none;
  color: #2B2B32;
  letter-spacing: -0.5px;
  position: relative;
  z-index: 1;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: #FF5C35;
  color: #fff;
  box-shadow: 3px 3px 0 #2B2B32;
  transform: rotate(-3deg);
  transition: 0.2s;
}
.logo:hover .logo-icon { transform: rotate(3deg) scale(1.05); }
.main-nav { display: flex; align-items: center; gap: 28px; list-style: none; }
.main-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: #2B2B32;
  transition: 0.2s;
  position: relative;
  padding: 4px 0;
}
.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: #FF5C35;
  border-radius: 2px;
  transition: width 0.25s;
}
.main-nav a:not(.nav-cta):hover { color: #FF5C35; }
.main-nav a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  padding: 9px 22px;
  border-radius: 50px;
  color: #fff !important;
  font-weight: 700 !important;
  background: #FF5C35;
  box-shadow: 3px 3px 0 #2B2B32;
  transition: 0.2s;
}
.nav-cta:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 #2B2B32;
  color: #fff !important;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: #fff;
  border: 2px solid #2B2B32;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.3rem;
  align-items: center;
  justify-content: center;
  color: #2B2B32;
}

/* 首页Hero */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
  background:
    radial-gradient(circle at 80% 20%, rgba(255, 197, 61, 0.35) 0%, transparent 40%),
    radial-gradient(circle at 10% 80%, rgba(12, 124, 117, 0.18) 0%, transparent 35%);
}
.hero::after {
  content: '';
  position: absolute;
  width: 240px;
  height: 240px;
  border: 3px dashed #FF5C35;
  border-radius: 50%;
  top: 60px;
  right: -80px;
  opacity: 0.25;
  pointer-events: none;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-content { max-width: 100%; }
.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 5px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  background: #FFC53D;
  color: #2B2B32;
  box-shadow: 2px 2px 0 #2B2B32;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2.4rem, 4rem, 3.6rem);
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -1px;
  color: #2B2B32;
}
.hero h1 .text-accent {
  color: #FF5C35;
  position: relative;
  display: inline-block;
}
.hero h1 .text-accent::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 10px;
  background: #FFC53D;
  z-index: -1;
  border-radius: 3px;
}
.hero p {
  font-size: 1.15rem;
  opacity: 0.75;
  max-width: 520px;
  margin-bottom: 34px;
  line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #FF5C35, #FFC53D);
  box-shadow: 10px 10px 0 #2B2B32;
  border: 2px solid #2B2B32;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-image::before {
  content: '🎬 免费观看';
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: #fff;
  padding: 8px 18px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 2px 2px 0 #2B2B32;
  z-index: 1;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 50px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: 0.2s;
  font-size: 1rem;
  letter-spacing: 0.3px;
}
.btn-primary {
  color: #fff;
  background: #FF5C35;
  box-shadow: 4px 4px 0 #2B2B32;
}
.btn-primary:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #2B2B32;
}
.btn-outline {
  background: transparent;
  border: 2px solid #2B2B32;
  color: #2B2B32;
  box-shadow: 3px 3px 0 rgba(43, 43, 50, 0.2);
}
.btn-outline:hover {
  background: #fff;
  box-shadow: 3px 3px 0 #2B2B32;
  transform: translate(-1px, -1px);
}

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  padding: 4px 14px;
  background: #0C7C75;
  color: #fff;
  border-radius: 4px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.8rem, 2.5rem, 2.4rem);
  margin-bottom: 14px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.5px;
}
.section-desc {
  max-width: 620px;
  opacity: 0.75;
  margin-bottom: 44px;
  font-size: 1rem;
  line-height: 1.7;
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.category-card {
  border-radius: 14px;
  padding: 30px 26px;
  background: #fff;
  border: 2px solid #2B2B32;
  box-shadow: 5px 5px 0 #FFC53D;
  transition: 0.2s ease;
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 92, 53, 0.12);
  top: -20px;
  right: -20px;
  transition: 0.3s;
}
.category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 #FF5C35;
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: #F4ECE1;
  position: relative;
  z-index: 1;
}
.category-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.category-card p {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: 18px;
  line-height: 1.6;
}
.card-link {
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  color: #FF5C35;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: 0.2s;
}
.card-link:hover { gap: 10px; color: #0C7C75; }

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.feature-image {
  border-radius: 14px;
  overflow: hidden;
  border: 2px solid #2B2B32;
  box-shadow: 8px 8px 0 rgba(43, 43, 50, 0.15);
  position: relative;
}
.feature-image::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, transparent 60%, rgba(255, 92, 53, 0.25));
  top: 0;
  left: 0;
}
.feature-image img { width: 100%; height: auto; display: block; }
.feature-text .section-title { margin-bottom: 20px; }
.feature-list { list-style: none; margin-top: 20px; }
.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
}
.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: #0C7C75;
  background: rgba(12, 124, 117, 0.15);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

/* 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: 14px;
  border: 2px solid #2B2B32;
  background: #fff;
  box-shadow: 4px 4px 0 #0C7C75;
  transition: 0.2s;
}
.stat-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 #0C7C75;
}
.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  color: #FF5C35;
  letter-spacing: -1px;
}
.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  font-weight: 500;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 26px;
}
.content-wall-item {
  border-radius: 14px;
  overflow: hidden;
  border: 2px solid #2B2B32;
  background: #fff;
  box-shadow: 5px 5px 0 rgba(43, 43, 50, 0.12);
  transition: 0.2s ease;
}
.content-wall-item:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 #FF5C35;
}
.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 2px solid #2B2B32;
}
.content-wall-body { padding: 22px; }
.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.content-wall-body p {
  font-size: 0.88rem;
  opacity: 0.7;
  margin-bottom: 12px;
  line-height: 1.6;
}
.content-wall-body .tag {
  display: inline-block;
  background: #F4ECE1;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  color: #0C7C75;
}

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 2px solid #2B2B32;
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  box-shadow: 3px 3px 0 rgba(43, 43, 50, 0.1);
  transition: 0.2s;
}
.faq-item:hover {
  box-shadow: 5px 5px 0 #FFC53D;
  transform: translate(-1px, -1px);
}
.faq-item.open { box-shadow: 5px 5px 0 #0C7C75; }
.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
}
.faq-item .faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  transition: 0.2s;
  color: #FF5C35;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); color: #0C7C75; }
.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.75;
  line-height: 1.7;
  font-size: 0.95rem;
}
.faq-item.open .faq-answer { display: block; }

/* CTA横幅 */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: 16px;
  color: #fff;
  background: #0C7C75;
  border: 2px solid #2B2B32;
  box-shadow: 8px 8px 0 #FFC53D;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  top: -40px;
  right: 30px;
}
.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  opacity: 0.85;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary {
  background: #FFC53D;
  color: #2B2B32;
  box-shadow: 4px 4px 0 #2B2B32;
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary:hover { background: #fff; }

/* 页脚 */
.site-footer {
  padding: 60px 0 28px;
  background: #F4ECE1;
  border-top: 2px solid #2B2B32;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.7;
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #2B2B32;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  text-decoration: none;
  font-size: 0.9rem;
  opacity: 0.7;
  color: #2B2B32;
  transition: 0.2s;
}
.footer-col ul li a:hover {
  opacity: 1;
  color: #FF5C35;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 2px solid rgba(43, 43, 50, 0.15);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.65;
}

/* 工具类 */
.text-accent { color: #FF5C35; }
.text-center { text-align: center; }
.seo-description { max-width: 620px; margin: 0 auto 48px; opacity: 0.7; line-height: 1.8; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #FDF8F2; }
::-webkit-scrollbar-thumb { background: #FF5C35; border-radius: 5px; border: 2px solid #FDF8F2; }
::-webkit-scrollbar-thumb:hover { background: #0C7C75; }

/* 选中文本 */
::selection { background: #FFC53D; color: #2B2B32; }

/* 响应式 */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-image { min-height: 250px; }
  .hero { padding: 110px 0 60px; }
}

@media (max-width: 768px) {
  .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; }
  .menu-toggle { display: flex; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #FDF8F2;
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
    padding: 20px;
    gap: 16px;
    border-bottom: 2px solid #2B2B32;
  }
  .main-nav.open a { font-size: 1rem; }
  .section { padding: 60px 0; }
  .hero h1 { font-size: 2.2rem; }
}

@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; }
  .btn { width: 100%; justify-content: center; }
  .hero { min-height: 65vh; }
  .hero h1 { font-size: 1.8rem; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: 1.5rem; }
  .stat-number { font-size: 1.8rem; }
  .site-footer { padding: 40px 0 20px; }
}