/* ═══════════════════════════════════════════
   PA真人 — 温暖有机玻璃态设计系统
   配色：赤陶暖调 × 橄榄绿 × 奶油白
   ═══════════════════════════════════════════ */

/* ═══ 基础重置 ═══ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --cream: #faf7f2;
  --cream-warm: #f5f0e8;
  --terracotta: #d49472;
  --terracotta-deep: #b87054;
  --terracotta-light: #fdf0e8;
  --olive: #a8b5a2;
  --olive-light: #eef2ec;
  --brown-deep: #3c2f2b;
  --brown-text: #4a3b36;
  --brown-muted: #7a6b64;
  --white-card: #fffdfb;
  --border-warm: #e8e2d8;
  --border-soft: #ede7df;
  --shadow-sm: 0 2px 12px rgba(60, 47, 43, 0.06);
  --shadow-md: 0 6px 24px rgba(60, 47, 43, 0.10);
  --shadow-lg: 0 12px 40px rgba(60, 47, 43, 0.14);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  overflow-x: hidden;
  background: var(--cream);
  color: var(--brown-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.section {
  padding: 80px 0;
}

.section:nth-child(even) {
  background: var(--cream-warm);
}

/* ═══ 导航 — 固定顶部玻璃态 ═══ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 247, 242, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-soft);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(250, 247, 242, 0.96);
  box-shadow: var(--shadow-sm);
}

.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: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--brown-deep);
  letter-spacing: -0.01em;
  transition: var(--transition);
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: var(--terracotta);
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.02em;
  box-shadow: 0 2px 8px rgba(212, 148, 114, 0.35);
}

.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(--brown-text);
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--terracotta);
  border-radius: 1px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.nav-cta {
  padding: 9px 22px !important;
  border-radius: 24px !important;
  color: #fff !important;
  font-weight: 600 !important;
  background: var(--terracotta) !important;
  box-shadow: 0 3px 12px rgba(212, 148, 114, 0.3);
  transition: var(--transition) !important;
}

.nav-cta:hover {
  background: var(--terracotta-deep) !important;
  box-shadow: 0 5px 18px rgba(184, 112, 84, 0.4);
  transform: translateY(-1px);
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--brown-deep);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══ Hero ═══ */
.hero {
  min-height: 70vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 68px;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 18px;
  background: var(--terracotta-light);
  color: var(--terracotta-deep);
  letter-spacing: 0.03em;
  border: 1px solid rgba(212, 148, 114, 0.2);
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.18;
  margin-bottom: 22px;
  color: var(--brown-deep);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  color: var(--terracotta);
  position: relative;
  display: inline-block;
}

.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 10px;
  background: rgba(212, 148, 114, 0.2);
  border-radius: 4px;
  z-index: -1;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 34px;
  color: var(--brown-muted);
  line-height: 1.7;
}

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

.hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #fdf0e8 0%, #f8ede4 30%, #fef9f5 100%);
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(212, 148, 114, 0.2);
  z-index: 2;
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
}

/* ═══ 按钮 ═══ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 26px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 26px;
  opacity: 0;
  transition: opacity 0.3s;
  background: rgba(255, 255, 255, 0.15);
  pointer-events: none;
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  color: #fff;
  background: var(--terracotta);
  box-shadow: 0 4px 16px rgba(212, 148, 114, 0.35);
}

.btn-primary:hover {
  background: var(--terracotta-deep);
  box-shadow: 0 6px 22px rgba(184, 112, 84, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1.8px solid var(--terracotta);
  color: var(--terracotta);
}

.btn-outline:hover {
  background: var(--terracotta-light);
  border-color: var(--terracotta-deep);
  color: var(--terracotta-deep);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 0.85rem;
  border-radius: 20px;
}

/* ═══ 标签/标题 ═══ */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 12px;
  color: var(--terracotta);
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 14px;
  color: var(--brown-deep);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  color: var(--brown-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ═══ 卡片网格 ═══ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  border: 1px solid var(--border-warm);
  transition: var(--transition);
  background: var(--white-card);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--terracotta), var(--olive));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.category-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
  background: var(--terracotta-light);
  color: var(--terracotta);
  transition: var(--transition);
}

.category-card:hover .card-icon {
  background: var(--terracotta);
  color: #fff;
  box-shadow: 0 4px 14px rgba(212, 148, 114, 0.35);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--brown-deep);
}

.category-card p {
  font-size: 0.9rem;
  color: var(--brown-muted);
  line-height: 1.6;
  margin-bottom: 14px;
  opacity: 0.8;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--terracotta);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.card-link:hover {
  color: var(--terracotta-deep);
  gap: 8px;
}

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

.feature-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #fdf6f1 0%, #faf3ec 50%, #fefaf6 100%);
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(168, 181, 162, 0.25);
  pointer-events: none;
  z-index: 2;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
}

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--brown-deep);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-text p {
  color: var(--brown-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brown-text);
  font-size: 0.95rem;
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: var(--terracotta);
  font-size: 1rem;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--terracotta-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

/* ═══ 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: var(--radius-lg);
  border: 1px solid var(--border-warm);
  background: var(--white-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--terracotta);
  opacity: 0;
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.stat-item:hover::after {
  opacity: 1;
  width: 60px;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--brown-deep);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-number span {
  color: var(--terracotta);
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: var(--brown-muted);
  font-weight: 500;
}

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

.content-wall-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-warm);
  transition: var(--transition);
  background: var(--white-card);
}

.content-wall-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--border-soft);
}

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

.content-wall-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--brown-deep);
  margin-bottom: 6px;
}

.content-wall-body p {
  font-size: 0.88rem;
  color: var(--brown-muted);
  opacity: 0.75;
  line-height: 1.5;
  margin-bottom: 10px;
}

.content-wall-body .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 14px;
  background: var(--olive-light);
  color: var(--olive);
}

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

.faq-item {
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--white-card);
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--terracotta);
  box-shadow: var(--shadow-sm);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--brown-deep);
  font-size: 1rem;
  user-select: none;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--terracotta);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  color: var(--brown-muted);
  line-height: 1.7;
  font-size: 0.93rem;
}

.faq-item.open {
  border-color: var(--terracotta);
  box-shadow: var(--shadow-sm);
  background: #fffefc;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

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

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 0.7;
    transform: translateY(0);
  }
}

/* ═══ CTA横幅 ═══ */
.cta-banner {
  padding: 60px 24px;
  text-align: center;
  border-radius: var(--radius-xl);
  color: #fff;
  background: linear-gradient(135deg, #d49472 0%, #c17d5e 30%, #b87054 60%, #c9846c 100%);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  letter-spacing: -0.01em;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--terracotta-deep);
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
  font-weight: 700;
}

.cta-banner .btn-primary:hover {
  background: #fffefc;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
  transform: translateY(-3px);
}

/* ═══ 页脚 ═══ */
.site-footer {
  padding: 56px 0 28px;
  background: var(--brown-deep);
  color: rgba(255, 255, 255, 0.75);
}

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

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

.footer-brand h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.7;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: 0.88rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--terracotta);
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

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

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: var(--brown-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  text-align: center;
}

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

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

/* ═══ 装饰元素 ═══ */
.section-divider {
  width: 60px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--terracotta), var(--olive));
  margin: 0 auto 32px;
}

.glow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--terracotta);
  display: inline-block;
  box-shadow: 0 0 12px rgba(212, 148, 114, 0.5);
  animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
  0%,
  100% {
    box-shadow: 0 0 8px rgba(212, 148, 114, 0.4);
  }
  50% {
    box-shadow: 0 0 20px rgba(212, 148, 114, 0.7);
  }
}

/* ═══ 响应式 ═══ */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 40px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero p {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-image {
    max-width: 500px;
    margin: 0 auto;
  }

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

  .section-title {
    font-size: 1.8rem;
  }

  .feature-block {
    gap: 36px;
  }

  .footer-grid {
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-image {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

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

  .hero h1 {
    font-size: 2rem;
  }

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

  .section {
    padding: 56px 0;
  }

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

  .main-nav {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(250, 247, 242, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    flex-direction: column;
    gap: 6px;
    border-bottom: 1px solid var(--border-soft);
    box-shadow: var(--shadow-md);
    z-index: 999;
  }

  .main-nav.open {
    display: flex;
    animation: slideDown 0.3s ease-out;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .main-nav a {
    padding: 12px 8px;
    font-size: 1rem;
    border-bottom: 1px solid var(--border-soft);
    width: 100%;
  }

  .main-nav a:last-child {
    border-bottom: none;
  }

  .nav-cta {
    display: inline-block;
    text-align: center;
    margin-top: 6px;
    width: 100%;
    border-radius: 24px !important;
    padding: 13px 22px !important;
  }

  .menu-toggle {
    display: flex;
  }

  .content-wall {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
  }

  .cards-grid {
    gap: 16px;
  }

  .cta-banner {
    padding: 44px 20px;
  }

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

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .footer-col ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .footer-col ul li {
    margin-bottom: 0;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
    max-width: 280px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .hero {
    padding-top: 90px;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .category-card {
    padding: 22px 18px;
  }

  .container {
    padding: 0 16px;
  }

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

  .site-footer {
    padding: 40px 0 20px;
  }

  .faq-item .faq-question {
    padding: 14px 16px;
    font-size: 0.9rem;
  }

  .faq-item .faq-answer {
    padding: 0 16px 14px;
    font-size: 0.85rem;
  }
}

/* ═══ 滚动条美化 ═══ */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-warm);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--terracotta);
}

/* ═══ 选择文本 ═══ */
::selection {
  background: rgba(212, 148, 114, 0.25);
  color: var(--brown-deep);
}

/* ═══ 焦点可见 ═══ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--terracotta);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ═══ 打印样式 ═══ */
@media print {
  .site-header,
  .menu-toggle,
  .cta-banner,
  .site-footer {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section {
    padding: 20px 0;
  }
}