/* ===== 基础重置 ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: #FFF8F0;
  color: #3D2A24;
  line-height: 1.6;
  position: relative;
}
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(circle, rgba(255, 90, 60, 0.08) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
}
body::after {
  content: '';
  position: fixed;
  bottom: -120px;
  right: -120px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 194, 68, 0.35), rgba(255, 194, 68, 0));
  z-index: 0;
  pointer-events: none;
}

/* ===== 核心布局 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.section { padding: 80px 0; position: relative; }
.section:nth-child(even) { background: #FFF2E8; }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  background: rgba(255, 248, 240, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid #FFE0CE;
  box-shadow: 0 2px 24px rgba(61, 42, 36, 0.04);
}
.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: 1.35rem;
  text-decoration: none;
  color: #3D2A24;
  letter-spacing: -0.5px;
  position: relative;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px 12px 12px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: #FF5A3C;
  color: #fff;
  box-shadow: 4px 4px 0 #FFC244;
  transform: rotate(-6deg);
  transition: transform 0.3s ease;
}
.logo:hover .logo-icon { transform: rotate(6deg) scale(1.05); }
.main-nav { display: flex; align-items: center; gap: 28px; list-style: none; }
.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: #3D2A24;
  transition: 0.2s;
  position: relative;
  padding: 4px 0;
}
.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  border-radius: 3px;
  background: #FF5A3C;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.main-nav a:not(.nav-cta):hover::after { transform: scaleX(1); }
.main-nav a:not(.nav-cta):hover { color: #FF5A3C; }
.nav-cta {
  padding: 8px 22px;
  border-radius: 30px;
  color: #fff !important;
  font-weight: 700;
  background: #FF5A3C;
  box-shadow: 0 4px 0 #C6402A;
  transition: all 0.15s ease;
}
.nav-cta:hover { transform: translateY(2px); box-shadow: 0 2px 0 #C6402A; }
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 2px solid #FFD9C7;
  background: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  color: #3D2A24;
}

/* ===== Hero ===== */
.hero {
  min-height: 82vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero::before {
  content: '🎬';
  position: absolute;
  top: 12%;
  right: 8%;
  font-size: 8rem;
  opacity: 0.07;
  transform: rotate(12deg);
  animation: float 8s ease-in-out infinite;
}
.hero::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 360px;
  height: 360px;
  border: 3px dashed #FFC244;
  border-radius: 50%;
  z-index: 0;
}
@keyframes float {
  0%, 100% { transform: rotate(12deg) translateY(0); }
  50% { transform: rotate(12deg) translateY(-20px); }
}
.hero-content { max-width: 680px; 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: #FFC244;
  color: #3D2A24;
  box-shadow: 3px 3px 0 #E09A20;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 3.4rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -2px;
}
.hero h1 .highlight {
  color: #FF5A3C;
  position: relative;
  z-index: 1;
}
.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 10px;
  background: rgba(255, 194, 68, 0.4);
  z-index: -1;
  border-radius: 4px;
}
.hero p {
  font-size: 1.15rem;
  opacity: 0.75;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; position: relative; z-index: 2; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: 0.2s;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
}
.btn-primary {
  background: #FF5A3C;
  color: #fff;
  box-shadow: 0 4px 0 #C6402A, 0 8px 16px rgba(255, 90, 60, 0.25);
}
.btn-primary:hover { transform: translateY(2px); box-shadow: 0 2px 0 #C6402A, 0 4px 12px rgba(255, 90, 60, 0.2); }
.btn-outline {
  background: transparent;
  border: 2.5px solid #3D2A24;
  color: #3D2A24;
  box-shadow: 4px 4px 0 #3D2A24;
}
.btn-outline:hover {
  background: #3D2A24;
  color: #FFF8F0;
  box-shadow: 2px 2px 0 #FFC244;
  transform: translate(2px, 2px);
}

/* ===== 标签/标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 14px;
  color: #FF5A3C;
  text-transform: uppercase;
  background: rgba(255, 90, 60, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
}
.section-title {
  font-size: 2.4rem;
  margin-bottom: 14px;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.2;
}
.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  font-size: 1.05rem;
}

/* ===== 卡片 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.category-card {
  border-radius: 20px;
  padding: 32px 28px;
  border: 2.5px solid #3D2A24;
  background: #fff;
  transition: 0.25s ease;
  box-shadow: 5px 5px 0 rgba(61, 42, 36, 1);
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  border-radius: 0 0 0 60px;
  background: rgba(255, 194, 68, 0.3);
  transition: 0.3s;
}
.category-card:nth-child(1) { background: #FFF8F0; }
.category-card:nth-child(2) { background: #FFF0E8; }
.category-card:nth-child(3) { background: #FFF9E8; }
.category-card:nth-child(4) { background: #EEF8F5; }
.category-card:nth-child(5) { background: #F5F0FF; }
.category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 rgba(61, 42, 36, 1);
}
.category-card:hover::before { width: 80px; height: 80px; }
.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.5rem;
  background: #FF5A3C;
  border: 2px solid #3D2A24;
  box-shadow: 3px 3px 0 #3D2A24;
}
.category-card:nth-child(2) .card-icon { background: #FFC244; }
.category-card:nth-child(3) .card-icon { background: #6FD6B0; }
.category-card:nth-child(4) .card-icon { background: #C4B1F0; }
.category-card:nth-child(5) .card-icon { background: #FFB4A8; }
.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: #FF5A3C;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  transition: gap 0.2s;
}
.card-link:hover { gap: 10px; }

/* ===== 特性 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.feature-image {
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  border: 2.5px solid #3D2A24;
  box-shadow: 8px 8px 0 #FFC244;
}
.feature-image::after {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  background: repeating-linear-gradient(45deg, #FF5A3C, #FF5A3C 6px, #fff 6px, #fff 12px);
  border-radius: 50%;
  border: 2px solid #3D2A24;
}
.feature-image img { width: 100%; height: auto; display: block; }
.feature-text { position: relative; }
.feature-text::before {
  content: '●';
  position: absolute;
  top: -20px;
  left: -30px;
  color: #FFC244;
  font-size: 3rem;
}
.feature-list { list-style: none; margin-top: 16px; }
.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: #FF5A3C;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 90, 60, 0.1);
  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: 32px 20px;
  border-radius: 20px;
  border: 2.5px solid #3D2A24;
  background: #fff;
  position: relative;
  transition: 0.2s;
}
.stat-item:nth-child(1) { background: #FF5A3C; color: #fff; }
.stat-item:nth-child(2) { background: #FFC244; }
.stat-item:nth-child(3) { background: #6FD6B0; }
.stat-item:nth-child(4) { background: #C4B1F0; }
.stat-item:hover { transform: translateY(-4px) rotate(-1deg); }
.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.2;
}
.stat-label {
  font-size: 0.9rem;
  opacity: 0.75;
  margin-top: 6px;
  font-weight: 600;
}

/* ===== 内容墙 ===== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}
.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  border: 2.5px solid #3D2A24;
  background: #fff;
  transition: 0.25s ease;
  box-shadow: 4px 4px 0 rgba(61, 42, 36, 1);
}
.content-wall-item:hover {
  transform: translate(-3px, -3px) rotate(-0.5deg);
  box-shadow: 7px 7px 0 rgba(61, 42, 36, 1);
}
.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 2.5px solid #3D2A24;
}
.content-wall-body { padding: 22px; }
.content-wall-body .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  background: #FFC244;
  margin-bottom: 10px;
  color: #3D2A24;
}
.content-wall-body h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 6px; }
.content-wall-body p { font-size: 0.85rem; opacity: 0.65; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 2px solid #3D2A24;
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: 0.2s;
}
.faq-item:hover { box-shadow: 4px 4px 0 rgba(61, 42, 36, 1); }
.faq-question {
  padding: 18px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  background: transparent;
}
.faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 400;
  color: #FF5A3C;
  transition: transform 0.3s;
  line-height: 1;
}
.faq-item.open .faq-question::after { content: '−'; transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.75;
  line-height: 1.7;
}
.faq-item.open .faq-answer { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.75; transform: translateY(0); }
}

/* ===== CTA横幅 ===== */
.cta-banner {
  padding: 64px 32px;
  text-align: center;
  border-radius: 28px;
  background: #FF5A3C;
  border: 2.5px solid #3D2A24;
  box-shadow: 8px 8px 0 #FFC244;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  left: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}
.cta-banner::after {
  content: '▶';
  position: absolute;
  bottom: -20px;
  right: 20px;
  font-size: 8rem;
  color: rgba(255, 255, 255, 0.15);
}
.cta-banner h2 { color: #fff; font-size: 2.2rem; font-weight: 900; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-banner p { color: rgba(255, 255, 255, 0.85); margin-bottom: 24px; position: relative; z-index: 1; }
.cta-banner .btn-primary {
  background: #fff;
  color: #FF5A3C;
  box-shadow: 0 4px 0 #C6402A;
  position: relative;
  z-index: 1;
  border: 2px solid #3D2A24;
}
.cta-banner .btn-primary:hover { box-shadow: 0 2px 0 #C6402A; transform: translateY(2px); }

/* ===== 页脚 ===== */
.site-footer {
  padding: 64px 0 28px;
  background: #3D2A24;
  color: #FFF8F0;
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand { }
.footer-logo {
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  color: #FFF8F0;
}
.footer-brand p { opacity: 0.65; font-size: 0.9rem; line-height: 1.7; }
.footer-col h4 { color: #FFC244; font-size: 0.95rem; margin-bottom: 14px; font-weight: 700; }
.footer-col a {
  display: block;
  color: rgba(255, 248, 240, 0.7);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 4px 0;
  transition: 0.2s;
}
.footer-col a:hover { color: #FF5A3C; padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 248, 240, 0.15);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 248, 240, 0.5);
}

/* ===== 工具类 ===== */
.text-accent { color: #FF5A3C; }
.text-center { text-align: center; }
.seo-description {
  max-width: 620px;
  margin: 0 auto 48px;
  opacity: 0.7;
  font-size: 1.05rem;
  line-height: 1.7;
}
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* 补充装饰 */
.hr-plaid {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 40px auto 0;
}
.hr-plaid::before,
.hr-plaid::after {
  content: '';
  flex: 1;
  height: 4px;
  border-radius: 4px;
  background: repeating-linear-gradient(90deg, #FF5A3C 0px, #FF5A3C 6px, #FFC244 6px, #FFC244 12px, #6FD6B0 12px, #6FD6B0 18px);
}
.hr-plaid span {
  font-size: 1.5rem;
  color: #FF5A3C;
}

/* 大圆角几何装饰 */
.arch-deco {
  width: 120px;
  height: 120px;
  border: 4px solid #6FD6B0;
  border-radius: 50px 50px 0 50px;
  position: absolute;
  opacity: 0.6;
}

/* ===== 响应式 ===== */
@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; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: #FFF8F0;
    padding: 24px;
    gap: 18px;
    border-bottom: 2px solid #FFE0CE;
    box-shadow: 0 12px 24px rgba(61, 42, 36, 0.06);
  }
  .main-nav.open a { font-size: 1.05rem; }
  .hero { padding-top: 110px; }
  .hero h1 { font-size: 2.4rem; }
  .hero::before { font-size: 5rem; }
  .hero::after { width: 200px; height: 200px; top: -30px; right: -30px; }
  .cta-banner { padding: 48px 20px; }
  .cta-banner::after { font-size: 5rem; }
}
@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-buttons { flex-direction: column; width: 100%; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  .section-title { font-size: 2rem; }
  .header-inner { padding: 0 16px; }
  .stat-item { padding: 24px 16px; }
  .stat-number { font-size: 2rem; }
  .feature-image { box-shadow: 5px 5px 0 #FFC244; }
  body::before { background-size: 20px 20px; }
}