/* 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: #fcf8f3;
  color: #3a2e28;
}

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section:nth-child(even) { background:#f5efe8; }

/* 导航 — 固定顶部，圆润可爱风格 */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background:rgba(252,248,243,0.92); 
  backdrop-filter:blur(12px); 
  border-bottom:2px solid #e8dcc8; 
}
.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:#5b4a3a; 
  letter-spacing:-0.5px;
}
.logo-icon { 
  width:40px; height:40px; border-radius:50%; 
  display:flex; align-items:center; justify-content:center; 
  font-size:1.2rem; 
  background: linear-gradient(135deg, #f7c948, #f59e4b);
  color:#fff;
  box-shadow: 0 4px 12px rgba(245,158,75,0.3);
}
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a { 
  text-decoration:none; font-size:0.95rem; font-weight:600; 
  transition:0.2s; color:#7a6b5c; 
  padding:4px 0;
  border-bottom:2px solid transparent;
}
.main-nav a:hover { 
  color:#e8893c; 
  border-bottom-color: #f7c948;
}
.nav-cta { 
  padding:10px 24px; border-radius:50px; 
  color:#fff!important; font-weight:700; 
  background: linear-gradient(135deg, #f7c948, #e8893c);
  box-shadow: 0 4px 14px rgba(232,137,60,0.35);
  border-bottom: none !important;
}
.nav-cta:hover { 
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,137,60,0.45);
}
.menu-toggle { display:none; }

/* 首页Hero — 柔和温暖，萌系渐变 */
.hero { 
  min-height:75vh; display:flex; align-items:center; 
  background: radial-gradient(ellipse at 20% 50%, #fdf6ed 0%, #f5efe8 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '🐾';
  position: absolute;
  font-size: 28rem;
  opacity: 0.06;
  right: -5%;
  bottom: -10%;
  transform: rotate(-15deg);
}
.hero-content { max-width:680px; position: relative; z-index: 2; }
.hero-eyebrow { 
  display:inline-block; font-size:0.8rem; font-weight:700; 
  padding:6px 18px; border-radius:50px; margin-bottom:18px; 
  background: #f7e4d0;
  color: #b57a4a;
  letter-spacing: 1px;
}
.hero h1 { 
  font-size:3.2rem; line-height:1.15; margin-bottom:20px; 
  color: #3a2e28;
  font-weight: 900;
  letter-spacing: -1px;
}
.hero h1 span { 
  background: linear-gradient(135deg, #f7c948, #e8893c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p { 
  font-size:1.15rem; opacity:0.7; max-width:540px; margin-bottom:36px; 
  color: #6b5b4c;
  line-height: 1.7;
}
.hero-buttons { display:flex; gap:16px; }
.hero-image { 
  border-radius:24px; overflow:hidden; 
  box-shadow: 0 20px 60px rgba(58,46,40,0.12);
  border: 2px solid #e8dcc8;
}

/* 按钮 — 圆润温暖 */
.btn { 
  display:inline-flex; align-items:center; gap:10px; 
  padding:14px 32px; border-radius:50px; font-weight:700; 
  cursor:pointer; border:none; text-decoration:none; transition:0.25s; 
  font-size:0.95rem;
}
.btn-primary { 
  color:#fff; 
  background: linear-gradient(135deg, #f7c948, #e8893c);
  box-shadow: 0 4px 16px rgba(232,137,60,0.3);
}
.btn-primary:hover { 
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(232,137,60,0.4);
}
.btn-outline { 
  background:transparent; border:2px solid #d4c5b5; 
  color: #5b4a3a;
}
.btn-outline:hover { 
  border-color: #e8893c; 
  color: #e8893c;
  background: rgba(232,137,60,0.06);
}

/* 标签/标题 */
.section-label { 
  display:inline-block; font-size:0.75rem; font-weight:700; 
  letter-spacing:3px; margin-bottom:14px; 
  color: #c99d73;
  text-transform: uppercase;
}
.section-title { 
  font-size:2.2rem; margin-bottom:14px; 
  color: #3a2e28;
  font-weight: 900;
  letter-spacing: -0.5px;
}
.section-desc { 
  max-width:600px; opacity:0.7; margin-bottom:40px; 
  color: #6b5b4c;
  line-height: 1.7;
}

/* 卡片网格 — 毛茸茸卡片风格 */
.cards-grid { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:28px; 
}
.category-card { 
  border-radius:20px; padding:32px; 
  border:2px solid #e8dcc8; 
  transition:0.3s; 
  background: #fffcf8;
  position: relative;
  overflow: hidden;
}
.category-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #f7c948, #f59e4b);
  opacity: 0;
  transition: 0.3s;
}
.category-card:hover { 
  transform:translateY(-6px); 
  box-shadow:0 12px 40px rgba(58,46,40,0.1); 
  border-color: #f7c948;
}
.category-card:hover::after {
  opacity: 1;
}
.card-icon { 
  width:56px; height:56px; border-radius:16px; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:18px; font-size:1.5rem; 
  background: #f5efe8;
  color: #b57a4a;
}
.card-link { 
  font-weight:700; font-size:0.85rem; text-decoration:none; 
  color: #e8893c;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.card-link:hover { gap: 8px; }

/* 特性块 */
.feature-block { 
  display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; 
}
.feature-image { 
  border-radius:20px; overflow:hidden; 
  box-shadow: 0 12px 40px rgba(58,46,40,0.1);
  border: 2px solid #e8dcc8;
}
.feature-image img { width:100%; height:auto; }
.feature-text { }
.feature-list { list-style:none; }
.feature-list li { 
  padding:8px 0; display:flex; align-items:center; gap:12px; 
  font-weight: 500;
  color: #4a3e36;
}
.feature-list li::before { 
  content:'🐾'; font-weight:700; 
  font-size: 1.1rem;
}

/* 数据条 — 萌系统计 */
.stats-bar { 
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; 
}
.stat-item { 
  padding:32px 20px; border-radius:20px; 
  border:2px solid #e8dcc8; 
  background: #fffcf8;
  transition: 0.3s;
}
.stat-item:hover {
  border-color: #f7c948;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(232,137,60,0.12);
}
.stat-number { 
  font-size:2.6rem; font-weight:900; 
  background: linear-gradient(135deg, #f7c948, #e8893c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size:0.9rem; opacity:0.6; margin-top:8px; color: #6b5b4c; }

/* 内容墙 */
.content-wall { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:28px; 
}
.content-wall-item { 
  border-radius:20px; overflow:hidden; 
  border:2px solid #e8dcc8; 
  transition:0.3s; 
  background: #fffcf8;
}
.content-wall-item:hover { 
  transform:translateY(-6px); 
  box-shadow:0 12px 40px rgba(58,46,40,0.1); 
  border-color: #f7c948;
}
.content-wall-item img { 
  width:100%; height:220px; object-fit:cover; 
}
.content-wall-body { padding:24px; }
.content-wall-body h3 { font-size:1.15rem; margin-bottom:6px; color: #3a2e28; }
.content-wall-body p { font-size:0.9rem; opacity:0.65; color: #6b5b4c; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  border:2px solid #e8dcc8; border-radius:16px; 
  margin-bottom:10px; overflow:hidden; cursor:pointer; 
  background: #fffcf8;
  transition: 0.2s;
}
.faq-item:hover { border-color: #d4c5b5; }
.faq-item .faq-question { 
  padding:18px 24px; font-weight:700; 
  display:flex; justify-content:space-between; 
  color: #3a2e28;
  font-size: 1.05rem;
}
.faq-item .faq-question::after {
  content: '↓';
  font-size: 1.2rem;
  color: #c99d73;
  transition: 0.3s;
}
.faq-item.open .faq-question::after {
  transform: rotate(180deg);
}
.faq-item .faq-answer { 
  padding:0 24px 20px; display:none; opacity:0.7; 
  color: #6b5b4c;
  line-height: 1.7;
}
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 温暖渐变 */
.cta-banner { 
  padding:64px 24px; text-align:center; border-radius:24px; 
  background: linear-gradient(135deg, #f7c948, #e8893c, #d47a2e);
  color:#fff; 
  box-shadow: 0 16px 48px rgba(232,137,60,0.25);
}
.cta-banner h2 { 
  color:#fff; 
  font-size: 2.2rem;
  margin-bottom: 12px;
}
.cta-banner p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  font-size: 1.1rem;
}
.cta-banner .btn-primary { 
  background:#fff; 
  color: #e8893c;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* 页脚 */
.site-footer { 
  padding:64px 0 32px; 
  background: #3a2e28;
  color: #d4c5b5;
}
.site-footer .container { }
.footer-grid { 
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; 
}
.footer-brand h3 { 
  color: #f7c948; 
  font-size: 1.4rem;
  margin-bottom: 12px;
}
.footer-brand p { 
  opacity: 0.7; 
  line-height: 1.7;
  font-size: 0.9rem;
}
.footer-col h4 { 
  color: #f5efe8; 
  margin-bottom: 16px;
  font-size: 1rem;
}
.footer-col a { 
  display: block; 
  color: #b5a594; 
  text-decoration: none; 
  padding: 4px 0;
  font-size: 0.9rem;
  transition: 0.2s;
}
.footer-col a:hover { color: #f7c948; }
.footer-bottom { 
  border-top:1px solid rgba(255,255,255,0.08); 
  margin-top:48px; padding-top:24px; 
  text-align:center; font-size:0.85rem; 
  color: #8a7a6a;
}

/* 工具类 */
.text-accent { color: #e8893c; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.7; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 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; 
    background: none; 
    border: none; 
    font-size: 1.5rem; 
    cursor: pointer;
    color: #5b4a3a;
  }
  .main-nav.open { 
    display:flex; flex-direction:column; 
    position:absolute; top:72px; left:0; width:100%; 
    background:rgba(252,248,243,0.98); 
    padding:24px 32px;
    gap: 16px;
    border-bottom: 2px solid #e8dcc8;
  }
  .hero h1 { font-size:2.4rem; }
  .hero::before { font-size: 16rem; }
  .section-title { font-size: 1.8rem; }
}
@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; }
  .hero h1 { font-size:2rem; }
  .stat-number { font-size: 2rem; }
}