:root{
  --bg:#f4dcd6;
  --surface:#fdfbf7;
  --surface-2:#fff7f2;
  --ink:#321e1e;
  --muted:#7a5f5f;
  --line:rgba(50,30,30,.12);
  --accent:#ff2a65;
  --accent-2:#d44c72;
  --accent-soft:#f7627f;
  --shadow:0 18px 40px rgba(50,30,30,.12);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.55), transparent 42%),
    linear-gradient(180deg, #f7e7e1 0%, var(--bg) 100%);
  line-height:1.7;
  padding-top:88px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.icon-sprite{display:none}
.shell{width:min(1180px, calc(100% - 32px));margin:0 auto}
.site-header{
  position:relative;
  overflow:visible;
  padding-bottom:28px;
}
.site-header::before{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(120deg, rgba(255,255,255,.42), transparent 40%),
    linear-gradient(135deg, rgba(255,42,101,.08), transparent 55%);
  pointer-events:none;
}
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  position:fixed;
  left:0;
  right:0;
  top:0;
  z-index:2;
  background:rgb(251, 243, 240);
  backdrop-filter:none;
  border-bottom:none;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand img{
  border-radius:16px;
  box-shadow:var(--shadow);
  transition:transform .22s ease, box-shadow .22s ease;
}
.brand:hover img{
  transform:translateY(-1px) scale(1.03);
  box-shadow:0 16px 30px rgba(50,30,30,.14);
}
.brand-copy{display:flex;flex-direction:column;min-width:0}
.brand-kicker{
  font-size:12px;
  color:var(--accent-2);
  text-transform:uppercase;
  letter-spacing:.08em;
}
.brand-copy strong{font-size:18px;line-height:1.25}
.site-nav{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.site-nav a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--muted);
  padding:8px 10px;
  border:1px solid transparent;
  border-radius:999px;
  transition:color .18s ease, border-color .18s ease, background .18s ease, transform .18s ease;
}
.site-nav svg{
  width:16px;
  height:16px;
  flex:0 0 auto;
}
.site-nav a:hover{
  color:var(--accent);
  border-color:rgba(255,42,101,.45);
  background:rgba(255,255,255,.35);
  transform:none;
}
.nav-cta,.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:999px;
  padding:12px 18px;
  font-weight:700;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
}
.nav-cta{
  background:var(--accent);
  color:#fff;
  box-shadow:0 10px 24px rgba(255,42,101,.25);
  border-color:transparent;
}
.site-nav .nav-cta:hover{
  color:#fff;
  border-color:transparent;
  background:var(--accent);
  transform:translateY(-2px);
}
.nav-cta:hover,.button:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 28px rgba(255,42,101,.2);
}
.nav-toggle{
  display:none;
  width:48px;height:48px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.66);
  border-radius:14px;
  box-shadow:var(--shadow);
  position:relative;
}
.nav-toggle span:not(.sr-only){
  position:absolute;
  left:50%;
  top:50%;
  display:block;
  width:20px;height:2px;
  margin:0;
  background:var(--ink);
  border-radius:99px;
  transform:translate(-50%, -50%);
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span:not(.sr-only):nth-child(1){
  transform:translate(-50%, calc(-50% - 7px));
}
.nav-toggle span:not(.sr-only):nth-child(3){
  transform:translate(-50%, calc(-50% + 7px));
}
.nav-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(1){
  transform:translate(-50%, -50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(3){
  transform:translate(-50%, -50%) rotate(-45deg);
}
.hero{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
  gap:28px;
  align-items:center;
  position:relative;
  z-index:1;
  padding-top:12px;
}
.hero-copy{
  background:rgba(253,251,247,.86);
  border:1px solid rgba(255,255,255,.75);
  border-radius:28px;
  padding:30px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(8px);
}
.eyebrow,.section-kicker,.strip-label{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-2);
  font-weight:700;
  margin:0 0 12px;
}
h1,h2,h3,p{margin-top:0}
h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.06;
  margin-bottom:14px;
}
h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.16;
  margin-bottom:10px;
}
h3{
  font-size:clamp(18px,2.2vw,24px);
  line-height:1.22;
  color:var(--accent-2);
  margin-bottom:16px;
}
.hero-lead{font-size:18px;color:var(--muted);margin-bottom:22px;max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.button.primary{
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  color:#fff;
  box-shadow:0 16px 28px rgba(255,42,101,.24);
}
.button.secondary{
  background:rgba(255,255,255,.74);
  color:var(--ink);
  border-color:var(--line);
}
.button svg{width:18px;height:18px}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;
  padding:0;
  margin:0;
  list-style:none;
}
.hero-stats li{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:12px 14px;
}
.hero-stats strong{display:block;font-size:13px;color:var(--accent-2);margin-bottom:4px}
.hero-stats span{font-size:14px;color:var(--ink)}
.hero-art{
  margin:0;
  border-radius:28px;
  overflow:hidden;
  box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.7);
  background:var(--surface);
  transition:transform .28s ease, box-shadow .28s ease;
}
.hero-art:hover{
  transform:translateY(-3px);
  box-shadow:0 24px 48px rgba(50,30,30,.16);
}
.hero-art img{width:100%;height:100%;object-fit:cover}
.section{padding:72px 0 0}
.split-section{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(300px,.88fr);
  gap:28px;
  align-items:center;
}
.reverse{grid-template-columns:minmax(300px,.88fr) minmax(0,1fr)}
.reverse .section-copy{order:2}
.reverse .section-media{order:1}
.section-copy,.content-card,.feature-card,.faq-list details,.timeline,.guide-text{
  background:rgba(253,251,247,.88);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease, background .24s ease;
}
.section-copy:hover,.content-card:hover,.feature-card:hover,.guide-text:hover,.faq-list details:hover{
  transform:translateY(-2px);
  border-color:rgba(255,42,101,.18);
  box-shadow:0 22px 44px rgba(50,30,30,.13);
  background:rgba(255,250,247,.96);
}
.section-copy,.content-card,.guide-text,.timeline{padding:26px}
.section-header{margin-bottom:18px}
.section-header h2{margin-bottom:8px}
.content-grid,.guide-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:20px}
.content-card p,.guide-text p,.section-copy p,.feature-card p,.timeline div,.faq-list p{color:var(--muted)}
.check-list,.step-list{
  margin:18px 0 0;
  padding-left:18px;
}
.check-list li,.step-list li{margin-bottom:10px}
.visual-stack{display:grid;gap:18px}
.visual-stack figure{
  margin:0;
  overflow:hidden;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.75);
  box-shadow:var(--shadow);
  background:var(--surface);
  transition:transform .26s ease, box-shadow .26s ease, border-color .26s ease;
}
.visual-stack figure:hover{
  transform:translateY(-3px);
  border-color:rgba(255,42,101,.16);
  box-shadow:0 22px 42px rgba(50,30,30,.14);
}
.visual-stack img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease, filter .35s ease;
}
.visual-stack figure:hover img{
  transform:scale(1.025);
  filter:saturate(1.04);
}
.section-media,.section-media figure{margin:0}
.section-media{
  overflow:hidden;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.75);
  box-shadow:var(--shadow);
  background:var(--surface);
  transition:transform .26s ease, box-shadow .26s ease, border-color .26s ease;
}
.section-media.small{max-width:420px;justify-self:end}
.section-media:hover{
  transform:translateY(-3px);
  border-color:rgba(255,42,101,.16);
  box-shadow:0 22px 42px rgba(50,30,30,.14);
}
.section-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease, filter .35s ease;
}
.section-media:hover img{
  transform:scale(1.025);
  filter:saturate(1.04);
}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.feature-card{
  padding:20px;
  background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,247,242,.96));
}
.feature-card img{
  width:56px;height:56px;
  border-radius:16px;
  margin-bottom:14px;
  box-shadow:0 10px 20px rgba(255,42,101,.14);
  transition:transform .22s ease;
}
.feature-card:hover img{transform:scale(1.06)}
.feature-card h3{margin-bottom:10px;color:var(--ink);font-size:18px}
.timeline{
  display:grid;
  gap:12px;
}
.timeline div{
  padding:14px 16px;
  background:rgba(255,255,255,.75);
  border:1px solid rgba(50,30,30,.08);
  border-radius:14px;
  transition:background .2s ease, border-color .2s ease, transform .2s ease;
}
.timeline div:hover{
  background:rgba(255,250,247,.96);
  border-color:rgba(255,42,101,.16);
  transform:translateX(3px);
}
.faq-list{
  display:grid;
  gap:14px;
}
.faq-list details{
  padding:0 18px;
}
.faq-list summary{
  cursor:pointer;
  list-style:none;
  padding:18px 0;
  font-weight:700;
  transition:color .18s ease;
}
.faq-list details:hover summary,
.faq-list details[open] summary{color:var(--accent-2)}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list p{margin:0 0 18px}
.site-footer{
  margin-top:72px;
  border-top:1px solid rgba(50,30,30,.08);
  background:linear-gradient(180deg, rgba(244,220,214,.2), rgba(244,220,214,.9));
  padding-bottom:22px;
}
.friend-links{
  margin-top:18px;
  padding:22px 24px 26px;
  border-radius:28px;
  background:rgba(251,243,240,.95);
  border:1px solid rgba(50,30,30,.08);
  box-shadow:var(--shadow);
}
.friend-title{
  margin:0 0 14px;
  text-align:center;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
}
.friend-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
}
.friend-list a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:10px 18px;
  border-radius:999px;
  background:#fff;
  border:1px solid rgba(50,30,30,.08);
  box-shadow:0 8px 18px rgba(50,30,30,.08);
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  text-align:center;
  transition:transform .2s ease, box-shadow .2s ease, color .2s ease, background .2s ease;
}
.friend-list a:hover{
  color:var(--accent);
  background:#fff8f6;
  transform:translateY(-1px);
  box-shadow:0 12px 22px rgba(50,30,30,.1);
}
.floating-cta{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:20;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-width:110px;
  padding:14px 18px;
  border-radius:999px;
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  color:#fff;
  font-weight:700;
  box-shadow:0 16px 32px rgba(255,42,101,.28);
  transition:transform .2s ease, box-shadow .2s ease;
}
.floating-cta svg{
  width:18px;
  height:18px;
  flex:0 0 auto;
}
.floating-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 20px 36px rgba(255,42,101,.32);
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap:20px;
  align-items:center;
  padding:22px 0;
}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand img{border-radius:10px}
.footer-brand p{margin:0;font-weight:700}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0;
}
@media (max-width: 980px){
  .hero,.split-section,.content-grid,.guide-grid,.feature-grid{grid-template-columns:1fr}
  .reverse .section-copy,.reverse .section-media{order:initial}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-media.small{max-width:none;justify-self:stretch}
}
@media (max-width: 760px){
  .shell{width:min(100% - 24px, 1180px)}
  .topbar{
    display:grid;
    grid-template-columns:minmax(0, 1fr) 48px;
    align-items:center;
    column-gap:10px;
    row-gap:12px;
  }
  .brand{
    grid-column:1;
    min-width:0;
    align-items:center;
  }
  .brand-copy{min-width:0}
  .brand-copy strong{font-size:16px}
  .brand-kicker,.brand-copy strong{
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }
  .brand-kicker{font-size:11px}
  .nav-toggle{
    display:inline-block;
    grid-column:2;
    margin-left:0;
    justify-self:end;
    align-self:center;
  }
  .site-nav{
    display:none;
    grid-column:1 / -1;
    width:100%;
    padding:12px 0 0;
    flex-direction:column;
    align-items:center;
    gap:10px;
  }
  .site-nav.is-open{display:flex}
  .site-nav a{
    justify-content:center;
    padding:6px 12px;
    text-align:center;
  }
  .hero-copy,.section-copy,.content-card,.guide-text,.timeline{padding:20px}
  .strip{flex-direction:column;align-items:flex-start}
  .footer-inner{flex-direction:column;align-items:flex-start}
  .friend-links{padding:18px 16px 20px}
  .friend-list{gap:10px}
  .friend-list a{min-height:38px;padding:9px 14px;font-size:14px}
  .floating-cta{
    right:14px;
    bottom:14px;
    min-width:96px;
    padding:12px 16px;
  }
}