*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --brand-pink:#f9d8e5;
  --brand-rose:#e8a0b4;
  --brand-deep:#b85c7a;
  --brand-cream:#fff5f7;
  --text-main:#2d2a2e;
  --text-sub:#5e5a60;
  --bg-body:#fefafb;
  --bg-card:#ffffff;
  --border-light:#f0e2e7;
  --shadow-sm:0 2px 8px rgba(184,92,122,0.08);
  --shadow-md:0 6px 20px rgba(184,92,122,0.12);
  --radius:16px;
  --radius-sm:10px;
  --font-base:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --max-width:1200px;
  --header-height:68px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-base);
  background:var(--bg-body);
  color:var(--text-main);
  line-height:1.75;
  font-size:16px;
  padding-top:var(--header-height);
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input{font:inherit;border:none;outline:none;background:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:64px 0}
.section-header{text-align:center;margin-bottom:44px}
.section-header h2{
  font-size:clamp(1.5rem,3vw,2rem);
  color:var(--brand-deep);
  letter-spacing:0.5px;
  margin-bottom:10px;
  font-weight:700;
}
.section-header p{color:var(--text-sub);font-size:0.95rem;max-width:640px;margin:0 auto}
.divider{width:48px;height:3px;background:var(--brand-rose);margin:14px auto 0;border-radius:2px}

/* 吸顶导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-height);
  background:rgba(255,245,247,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-light);
  transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:var(--shadow-sm)}
.nav-inner{
  max-width:var(--max-width);margin:0 auto;padding:0 24px;
  height:100%;display:flex;align-items:center;justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--brand-deep)}
.logo svg{width:34px;height:34px}
.nav-links{display:flex;gap:28px;font-size:0.92rem}
.nav-links a{color:var(--text-sub);transition:color .2s;position:relative}
.nav-links a:hover,.nav-links a:focus{color:var(--brand-deep)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;
  background:var(--brand-rose);transition:width .25s;border-radius:2px;
}
.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;background:var(--bg-card);
  border:1px solid var(--border-light);border-radius:999px;padding:6px 14px;
  transition:border-color .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:var(--brand-rose);box-shadow:0 0 0 3px rgba(232,160,180,0.15)}
.search-box input{width:130px;font-size:0.85rem;color:var(--text-main)}
.search-box input::placeholder{color:#b9aeb4}
.search-box button{padding:2px;color:var(--brand-deep);cursor:pointer}
.theme-toggle{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-card);border:1px solid var(--border-light);
  cursor:pointer;color:var(--brand-deep);transition:background .2s,transform .2s;
}
.theme-toggle:hover{background:var(--brand-pink);transform:scale(1.05)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.mobile-menu-btn span{width:22px;height:2px;background:var(--brand-deep);border-radius:2px;transition:.3s}
.mobile-nav{
  display:none;position:fixed;top:var(--header-height);left:0;right:0;bottom:0;
  background:var(--bg-body);z-index:999;padding:24px;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.mobile-nav.open{display:flex}
.mobile-nav a{
  padding:14px 16px;border-radius:var(--radius-sm);font-size:1rem;
  color:var(--text-main);border-bottom:1px solid var(--border-light);
}
.mobile-nav a:hover{background:var(--brand-pink)}

/* 面包屑 */
.breadcrumb{background:var(--brand-cream);border-bottom:1px solid var(--border-light)}
.breadcrumb-inner{
  max-width:var(--max-width);margin:0 auto;padding:12px 24px;
  font-size:0.82rem;color:var(--text-sub);display:flex;gap:8px;flex-wrap:wrap;
}
.breadcrumb-inner a{color:var(--brand-deep)}
.breadcrumb-inner span{color:#b9aeb4}

/* Banner轮播 */
.hero{
  position:relative;overflow:hidden;background:linear-gradient(135deg,#fff5f7 0%,#fde8ee 100%);
}
.hero-slider{position:relative;height:420px}
.hero-slide{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .8s ease;pointer-events:none;
}
.hero-slide.active{opacity:1;pointer-events:auto}
.hero-content{
  max-width:var(--max-width);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:48px;width:100%;
}
.hero-text{flex:1;min-width:0}
.hero-badge{
  display:inline-block;background:var(--brand-rose);color:#fff;
  font-size:0.78rem;padding:5px 14px;border-radius:999px;letter-spacing:1px;
  margin-bottom:18px;font-weight:600;
}
.hero-text h1{
  font-size:clamp(1.8rem,4vw,2.6rem);
  line-height:1.3;color:var(--brand-deep);font-weight:800;
  margin-bottom:16px;letter-spacing:0.5px;
}
.hero-text p{color:var(--text-sub);font-size:1rem;max-width:520px;margin-bottom:24px;line-height:1.8}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:0.92rem;font-weight:600;
  cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;
  text-align:center;
}
.btn-primary{background:var(--brand-deep);color:#fff;box-shadow:0 4px 14px rgba(184,92,122,0.3)}
.btn-primary:hover{background:#a04d68;transform:translateY(-2px);box-shadow:0 6px 20px rgba(184,92,122,0.4)}
.btn-outline{background:transparent;color:var(--brand-deep);border:1.5px solid var(--brand-rose)}
.btn-outline:hover{background:var(--brand-pink);transform:translateY(-2px)}
.hero-illustration{flex:1;display:flex;justify-content:center;align-items:center;min-width:0}
.hero-illustration svg{width:100%;max-width:380px;height:auto}
.hero-dots{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  display:flex;gap:10px;z-index:5;
}
.hero-dots button{
  width:10px;height:10px;border-radius:50%;background:rgba(184,92,122,0.3);
  cursor:pointer;transition:background .2s,transform .2s;
}
.hero-dots button.active{background:var(--brand-deep);transform:scale(1.2)}

/* 品牌介绍/数字统计 */
.stats-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:24px;margin-top:32px;
}
.stat-card{
  background:var(--bg-card);border-radius:var(--radius);padding:28px 20px;
  text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--border-light);
  transition:transform .3s,box-shadow .3s;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stat-number{
  font-size:2rem;font-weight:800;color:var(--brand-deep);
  line-height:1.2;margin-bottom:6px;
}
.stat-label{font-size:0.88rem;color:var(--text-sub)}

/* 卡片通用 */
.card-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:24px;
}
.card{
  background:var(--bg-card);border-radius:var(--radius);padding:28px 24px;
  border:1px solid var(--border-light);box-shadow:var(--shadow-sm);
  transition:transform .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card-icon{
  width:48px;height:48px;border-radius:12px;background:var(--brand-pink);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  color:var(--brand-deep);
}
.card h3{font-size:1.1rem;color:var(--brand-deep);margin-bottom:10px;font-weight:700}
.card p{font-size:0.9rem;color:var(--text-sub);line-height:1.8}

/* 文章列表 */
.article-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:24px;
}
.article-card{
  background:var(--bg-card);border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border-light);box-shadow:var(--shadow-sm);
  transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;
}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.article-thumb{height:160px;overflow:hidden;background:var(--brand-pink)}
.article-thumb svg{width:100%;height:100%;object-fit:cover}
.article-body{padding:22px 20px;flex:1;display:flex;flex-direction:column}
.article-meta{font-size:0.78rem;color:#b9aeb4;margin-bottom:8px;display:flex;gap:12px;flex-wrap:wrap}
.article-body h3{font-size:1.02rem;color:var(--brand-deep);margin-bottom:10px;line-height:1.5}
.article-body p{font-size:0.86rem;color:var(--text-sub);line-height:1.7;flex:1}
.article-more{
  margin-top:14px;font-size:0.85rem;color:var(--brand-rose);font-weight:600;
  display:inline-flex;align-items:center;gap:4px;
}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border-light);
  border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;
  transition:box-shadow .2s;
}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-question{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  padding:18px 22px;cursor:pointer;text-align:left;font-size:0.98rem;
  font-weight:600;color:var(--text-main);gap:16px;
}
.faq-question:hover{color:var(--brand-deep)}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--brand-pink);display:flex;align-items:center;justify-content:center;
  color:var(--brand-deep);font-size:1rem;font-weight:700;transition:transform .3s;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-answer-inner{
  padding:0 22px 20px;font-size:0.9rem;color:var(--text-sub);line-height:1.85;
}
.faq-item.open .faq-answer{max-height:600px}

/* HowTo */
.howto-steps{max-width:820px;margin:0 auto}
.howto-step{
  display:flex;gap:20px;margin-bottom:28px;position:relative;
}
.howto-step:not(:last-child)::before{
  content:"";position:absolute;left:22px;top:50px;bottom:-28px;width:2px;
  background:var(--border-light);
}
.howto-num{
  flex-shrink:0;width:46px;height:46px;border-radius:50%;
  background:var(--brand-pink);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.1rem;z-index:1;
}
.howto-content h3{font-size:1.05rem;color:var(--brand-deep);margin-bottom:8px}
.howto-content p{font-size:0.9rem;color:var(--text-sub);line-height:1.8}

/* 联系我们 */
.contact-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:24px;
}
.contact-card{
  background:var(--bg-card);border-radius:var(--radius);padding:28px 24px;
  border:1px solid var(--border-light);box-shadow:var(--shadow-sm);
  display:flex;gap:16px;align-items:flex-start;
}
.contact-card svg{flex-shrink:0;color:var(--brand-deep)}
.contact-card h3{font-size:0.98rem;color:var(--brand-deep);margin-bottom:6px}
.contact-card p{font-size:0.86rem;color:var(--text-sub);line-height:1.7}

/* 页脚 */
.site-footer{
  background:#2d2a2e;color:#d6cfd3;padding:56px 0 28px;margin-top:40px;
}
.footer-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:36px;margin-bottom:40px;
}
.footer-col h4{
  color:#fff;font-size:0.98rem;margin-bottom:18px;font-weight:700;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:0.85rem;color:#b9aeb4;transition:color .2s}
.footer-col a:hover{color:var(--brand-rose)}
.footer-col p{font-size:0.85rem;color:#b9aeb4;line-height:1.8}
.footer-bottom{
  border-top:1px solid #454147;padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:0.82rem;color:#8a8188;
}
.footer-bottom a{color:#b9aeb4}
.footer-bottom a:hover{color:var(--brand-rose)}

/* 返回顶部 */
.back-to-top{
  position:fixed;right:24px;bottom:32px;width:46px;height:46px;
  border-radius:50%;background:var(--brand-deep);color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 6px 18px rgba(184,92,122,0.35);z-index:900;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s,transform .3s,visibility .3s;
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:#a04d68;transform:translateY(-3px)}

/* 滚动动画 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* 暗黑模式 */
body.dark{
  --bg-body:#1c1a1e;
  --bg-card:#262329;
  --text-main:#e8e3e6;
  --text-sub:#a89fa5;
  --border-light:#3a353c;
  --brand-cream:#2a262c;
  --brand-pink:#3d2f37;
  --brand-deep:#e8a0b4;
  --brand-rose:#d4849c;
  --shadow-sm:0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:0 6px 20px rgba(0,0,0,0.4);
}
body.dark .site-header{background:rgba(28,26,30,0.92)}
body.dark .hero{background:linear-gradient(135deg,#262329 0%,#2f2830 100%)}
body.dark .site-footer{background:#141216}

/* 响应式 */
@media (max-width:900px){
  .nav-links,.search-box{display:none}
  .mobile-menu-btn{display:flex}
  .hero-slider{height:auto;padding:48px 0}
  .hero-slide{position:relative;opacity:1;pointer-events:auto;display:none}
  .hero-slide.active{display:flex}
  .hero-content{flex-direction:column;text-align:center;gap:28px}
  .hero-text p{margin-left:auto;margin-right:auto}
  .hero-cta{justify-content:center}
  .hero-illustration{max-width:280px}
}
@media (max-width:600px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .hero-text h1{font-size:1.6rem}
  .stat-number{font-size:1.6rem}
  .back-to-top{right:16px;bottom:20px;width:42px;height:42px}
}