:root{
  --bg:#fff7fa;
  --surface:#ffffff;
  --surface-2:#fff0f5;
  --line:rgba(229,33,98,.14);
  --text:#1f1721;
  --muted:#6c6170;
  --muted-2:#8b7f8d;
  --accent:#ff4f87;
  --accent-2:#ff7b5c;
  --accent-3:#d81b60;
  --shadow:0 12px 30px rgba(214,38,102,.08);
  --radius:14px;
  --radius-lg:22px;
  --container:1180px;
  --header-h:76px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    linear-gradient(180deg,#fff 0%,#fff7fa 22%,#fff7fa 100%);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  line-height:1.75;
  overflow-x:hidden;
  padding-top:var(--header-h);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font:inherit}
main{display:block}
.container{width:min(100%,var(--container));margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--soft{background:var(--surface-2)}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,79,135,.12);
  color:var(--accent-3);
  font-size:12px;font-weight:700;letter-spacing:0;
}
.section-head{max-width:760px;margin:0 auto 28px}
.section-title{
  margin:0;
  font-size:clamp(24px,3vw,36px);
  line-height:1.2;
  text-align:center;
}
.section-note{
  margin:10px auto 0;
  max-width:760px;
  color:var(--muted);
  text-align:center;
  font-size:15px;
}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:var(--muted);
  font-size:13px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 18px;
  border-radius:12px;border:1px solid transparent;
  font-weight:700;transition:.2s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 10px 24px rgba(255,79,135,.22)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(255,79,135,.26)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:rgba(255,79,135,.35);color:var(--accent-3)}
.btn-link{background:transparent;border-color:transparent;color:var(--accent-3);padding-inline:8px}
.btn-block{width:100%}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,79,135,.08);
}
.site-header__inner{
  height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.brand{
  display:flex;align-items:center;gap:12px;min-width:0;
}
.brand img{
  width:44px;height:44px;flex:0 0 44px;
  border-radius:12px;object-fit:cover;
}
.brand strong{display:block;font-size:18px;line-height:1.1}
.brand small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.site-nav{display:flex;align-items:center;gap:6px}
.site-nav a{
  padding:9px 12px;
  border-radius:10px;
  color:var(--muted);
  font-size:14px;
  transition:.2s ease;
}
.site-nav a:hover,.site-nav a.is-active{background:rgba(255,79,135,.08);color:var(--accent-3)}
.nav-cta{margin-left:6px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:4px auto;background:var(--text);border-radius:99px;
}
.mobile-dim{
  position:fixed;inset:0;background:rgba(16,12,17,.35);
  opacity:0;pointer-events:none;transition:.2s ease;z-index:998;
}
.mobile-dim.is-open{opacity:1;pointer-events:auto}
.mobile-nav{
  position:fixed;top:var(--header-h);right:-320px;bottom:0;z-index:999;
  width:min(320px,86vw);padding:18px;background:#fff;border-left:1px solid var(--line);
  transition:.25s ease;overflow:auto;
}
.mobile-nav.is-open{right:0}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 2px;border-bottom:1px solid rgba(255,79,135,.08);
  color:var(--text);font-weight:600;
}
.mobile-nav a span{color:var(--muted);font-size:12px;font-weight:500}
.hero{
  padding:34px 0 22px;
}
.hero__inner{
  display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;
}
.hero-copy h1{
  margin:14px 0 14px;
  font-size:clamp(30px,4vw,52px);
  line-height:1.12;
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--accent-3);
}
.hero-copy p{
  margin:0;
  color:var(--muted);
  font-size:16px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;
}
.metric strong{display:block;font-size:22px;line-height:1.1}
.metric span{display:block;margin-top:4px;color:var(--muted);font-size:12px}
.hero-frame{
  background:linear-gradient(180deg,#fff, #fff8fb);
  border:1px solid var(--line);
  border-radius:28px;
  box-shadow:var(--shadow);
  padding:16px;
}
.hero-frame img{
  width:100%;
  border-radius:22px;
  aspect-ratio:9/16;
  object-fit:cover;
}
.hero-panel{
  margin-top:12px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  color:var(--muted);font-size:13px;
}
.keyword-band{
  margin-top:28px;
  padding:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.keyword-band h2{
  margin:0 0 12px;
  font-size:18px;
}
.keyword-band p{margin:0 0 14px;color:var(--muted);font-size:14px}
.info-card,.feature-card,.article-card,.faq-item,.download-card,.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.info-card{padding:20px}
.info-card h3{margin:14px 0 8px;font-size:18px}
.info-card p{margin:0;color:var(--muted);font-size:14px}
.icon-badge{
  width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(255,79,135,.1);
  color:var(--accent-3);
  font-weight:800;
}
.feature-card{padding:20px}
.feature-card h3{margin:14px 0 8px;font-size:18px}
.feature-card p{margin:0;color:var(--muted);font-size:14px}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.download-card{padding:20px;position:relative}
.download-card h3{margin:12px 0 6px;font-size:18px}
.download-card p{margin:0;color:var(--muted);font-size:13px}
.download-card .note{margin-top:12px;font-size:12px;color:var(--muted-2)}
.download-card .btn{margin-top:16px;width:100%}
.download-card.is-hot{
  border-color:rgba(255,79,135,.28);
  background:linear-gradient(180deg,#fff,#fff6f9);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  background:rgba(255,79,135,.12);
  color:var(--accent-3);
  font-size:12px;font-weight:700;
}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.step{
  padding:20px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
}
.step strong{display:block;margin-bottom:8px;font-size:16px}
.step p{margin:0;color:var(--muted);font-size:14px}
.list{
  margin:0;padding:0;list-style:none;
  display:grid;gap:10px;
}
.list li{
  display:flex;gap:10px;align-items:flex-start;
  color:var(--muted);font-size:14px;
}
.list li:before{
  content:"";
  width:8px;height:8px;flex:0 0 8px;margin-top:9px;
  border-radius:50%;background:var(--accent);
}
.content{
  padding:26px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);
}
.content h1,.content h2,.content h3{line-height:1.25}
.content h1{margin:0 0 12px;font-size:clamp(28px,4vw,42px)}
.content h2{margin:28px 0 12px;font-size:24px}
.content p{margin:0 0 14px;color:var(--muted);font-size:15px}
.content .meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:12px;margin-bottom:18px}
.content .meta span{
  padding:4px 10px;border-radius:999px;background:var(--surface-2);border:1px solid rgba(255,79,135,.1);
}
.content img{border-radius:20px;margin:18px 0}
.content blockquote{
  margin:18px 0;padding:16px 18px;border-left:4px solid var(--accent);background:var(--surface-2);border-radius:0 14px 14px 0;color:var(--muted);
}
.faq-grid{display:grid;gap:12px}
.faq-item{overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;justify-content:space-between;gap:12px;align-items:center;
  padding:18px 20px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary span{color:var(--accent-3)}
.faq-item .faq-body{padding:0 20px 18px;color:var(--muted);font-size:14px}
.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.article-card{display:block;overflow:hidden}
.article-thumb{
  aspect-ratio:16/9;
  background:linear-gradient(135deg,rgba(255,79,135,.08),rgba(255,123,92,.08));
  overflow:hidden;
}
.article-thumb img{width:100%;height:100%;object-fit:cover}
.article-body{padding:18px}
.article-body h3{margin:10px 0 8px;font-size:18px;line-height:1.35}
.article-body p{margin:0 0 10px;color:var(--muted);font-size:14px}
.article-meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted-2);font-size:12px}
.pager{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:24px}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 12px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:700;
}
.pager .current{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-color:transparent}
.media-box{
  padding:18px;background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);
}
.media-box img{width:100%;border-radius:20px}
.footer{
  margin-top:40px;
  padding:26px 0 34px;
  background:#fff;
  border-top:1px solid rgba(255,79,135,.08);
}
.footer-top{
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center;
}
.footer-copy{color:var(--muted);font-size:13px}
.footer-links{display:flex;flex-wrap:wrap;gap:10px}
.footer-links a{
  color:var(--muted);font-size:13px;
}
.footer-links a:hover{color:var(--accent-3)}
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:997;
  background:rgba(255,255,255,.96);
  border-top:1px solid rgba(255,79,135,.08);
  box-shadow:0 -10px 28px rgba(17,10,17,.08);
  padding:10px 0;
}
.sticky-bar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.sticky-bar p{margin:0;color:var(--muted);font-size:13px}
.sticky-actions{display:flex;gap:10px;flex-wrap:wrap}
.back-top{
  position:fixed;right:18px;bottom:86px;z-index:996;
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--accent-3);
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.2s ease;
}
.back-top.is-show{opacity:1;visibility:visible;transform:none}
.banner{
  padding:34px 0 18px;
}
.banner-box{
  padding:28px;
  background:linear-gradient(180deg,#fff,#fff7fa);
  border:1px solid var(--line);
  border-radius:28px;
  box-shadow:var(--shadow);
}
.banner h1{margin:0 0 10px;font-size:clamp(28px,3.8vw,44px);line-height:1.15}
.banner p{margin:0;color:var(--muted);font-size:15px}
@media (max-width: 1080px){
  .hero__inner,.grid-4{grid-template-columns:1fr}
  .grid-3,.download-grid,.steps,.article-grid,.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 780px){
  :root{--header-h:70px}
  body{padding-top:var(--header-h)}
  .site-nav,.nav-cta{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .hero{padding-top:22px}
  .hero__inner,.grid-3,.download-grid,.steps,.article-grid,.grid-2{grid-template-columns:1fr}
  .hero-metrics{grid-template-columns:1fr}
  .section{padding:56px 0}
  .content,.banner-box{padding:20px}
  .footer-top{flex-direction:column;align-items:flex-start}
  .sticky-bar{padding:12px 0}
}
@media (max-width: 520px){
  .container{padding:0 16px}
  .brand img{width:40px;height:40px;flex-basis:40px}
  .brand strong{font-size:16px}
  .hero-copy h1{font-size:30px}
  .hero-copy p,.section-note,.content p{font-size:14px}
  .keyword-band,.info-card,.feature-card,.download-card,.step,.faq-item,.article-card,.content,.media-box{border-radius:18px}
  .btn{min-height:44px;padding:0 14px;font-size:14px}
  .sticky-bar__inner{align-items:flex-start}
}