:root{
  --pink-50:#fff5f8;
  --pink-100:#ffe6ef;
  --pink-200:#ffcfe0;
  --pink-300:#ffaecb;
  --pink-400:#ff86b0;
  --pink-500:#f2598c;
  --pink-600:#d63c72;
  --ink:#3a2430;
  --ink-soft:#6f5563;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(214,60,114,.12);
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  color:var(--ink);
  background:var(--pink-50);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 20px;}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,245,248,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--pink-200);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:34px;width:auto;border-radius:8px;}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.5px;color:var(--pink-600);}
.nav{display:flex;gap:22px;font-size:15px;font-weight:600;color:var(--ink-soft);}
.nav a:hover{color:var(--pink-500);}
.btn{
  display:inline-block;border-radius:999px;font-weight:700;
  background:linear-gradient(135deg,var(--pink-400),var(--pink-600));
  color:#fff;padding:10px 24px;font-size:15px;
  box-shadow:0 6px 18px rgba(214,60,114,.28);
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(214,60,114,.35);}
.btn-ghost{
  background:#fff;color:var(--pink-600);border:2px solid var(--pink-300);
  box-shadow:none;
}

/* hero */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  background:
    radial-gradient(circle at 88% 12%,var(--pink-200) 0%,transparent 46%),
    radial-gradient(circle at 6% 82%,var(--pink-100) 0%,transparent 40%),
    linear-gradient(180deg,#fff9fc 0%,var(--pink-50) 100%);
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
.hero-tag{
  display:inline-block;background:var(--pink-100);color:var(--pink-600);
  font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.hero h1{font-size:30px;line-height:1.35;font-weight:900;letter-spacing:-.3px;}
.hero h1 em{font-style:normal;color:var(--pink-500);}
.hero-desc{margin-top:16px;font-size:16px;color:var(--ink-soft);max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-note{margin-top:14px;font-size:13px;color:var(--ink-soft);}
.hero-stats{display:flex;gap:28px;margin-top:30px;flex-wrap:wrap;}
.stat b{display:block;font-size:20px;color:var(--pink-600);font-weight:900;}
.stat span{font-size:13px;color:var(--ink-soft);}

.hero-visual{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.hero-visual img{
  width:100%;border-radius:16px;object-fit:cover;
  box-shadow:var(--shadow);border:4px solid #fff;
}
.hero-visual .tall{grid-row:span 2;aspect-ratio:3/4;object-fit:cover;}
.hero-visual .short{aspect-ratio:4/3;object-fit:cover;}

/* section common */
section{padding:64px 0;}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-kicker{
  font-size:13px;font-weight:800;color:var(--pink-500);
  letter-spacing:2px;text-transform:uppercase;margin-bottom:10px;
}
.sec-head h2{font-size:26px;font-weight:900;line-height:1.4;letter-spacing:-.2px;}
.sec-head p{margin-top:12px;font-size:15px;color:var(--ink-soft);}

/* intro */
.intro{background:#fff;}
.intro-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.intro-cards{display:grid;grid-template-columns:1fr;gap:16px;}
.card{
  background:var(--pink-50);border:1px solid var(--pink-200);
  border-radius:var(--radius);padding:22px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.card h3{font-size:17px;font-weight:800;margin-bottom:8px;}
.card h3 span{color:var(--pink-500);margin-right:6px;}
.card p{font-size:14.5px;color:var(--ink-soft);}
.intro-art img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;}

/* library */
.library{background:linear-gradient(180deg,var(--pink-50),#fff);}
.shelf{
  display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
}
.book{
  position:relative;border-radius:16px;overflow:hidden;background:#fff;
  box-shadow:0 6px 18px rgba(214,60,114,.12);
  transition:transform .22s ease;
}
.book:hover{transform:translateY(-5px);}
.book img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.book figcaption{
  padding:10px 12px;font-size:13px;font-weight:700;color:var(--ink);
  line-height:1.4;
}
.book figcaption small{display:block;font-weight:500;color:var(--ink-soft);margin-top:2px;}

/* calendar */
.calendar{background:#fff;}
.cal-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.cal-days{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;}
.day{
  background:var(--pink-50);border:1px solid var(--pink-200);border-radius:14px;
  padding:14px 8px;text-align:center;
}
.day b{display:block;font-size:18px;color:var(--pink-600);}
.day span{font-size:12px;color:var(--ink-soft);}
.cal-list{display:flex;flex-direction:column;gap:14px;}
.cal-item{
  display:flex;gap:14px;align-items:center;
  background:var(--pink-50);border-radius:14px;padding:12px;
  border:1px solid var(--pink-200);
}
.cal-item img{width:64px;height:84px;object-fit:cover;border-radius:10px;flex:none;}
.cal-item h4{font-size:15px;font-weight:800;}
.cal-item p{font-size:13px;color:var(--ink-soft);}
.cal-badge{
  margin-left:auto;flex:none;font-size:12px;font-weight:700;
  color:var(--pink-600);background:#fff;border:1px solid var(--pink-300);
  padding:4px 10px;border-radius:999px;
}

/* app screens */
.screens{background:linear-gradient(180deg,#fff,var(--pink-50));}
.screen-scroll{
  display:flex;gap:16px;overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.screen-scroll figure{
  flex:0 0 220px;scroll-snap-align:start;
  background:#fff;border-radius:18px;padding:10px;
  box-shadow:var(--shadow);border:1px solid var(--pink-200);
}
.screen-scroll img{border-radius:12px;width:100%;aspect-ratio:9/16;object-fit:cover;}
.screen-scroll figcaption{font-size:13px;color:var(--ink-soft);padding:8px 4px 2px;line-height:1.5;}

/* reviews */
.reviews{background:#fff;}
.review-grid{display:grid;grid-template-columns:1fr;gap:18px;}
.review{
  background:var(--pink-50);border-radius:var(--radius);padding:22px;
  border:1px solid var(--pink-200);
}
.review p{font-size:15px;color:var(--ink);}
.review footer{margin-top:14px;display:flex;align-items:center;gap:10px;}
.avatar{
  width:36px;height:36px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,var(--pink-300),var(--pink-500));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
}
.review cite{font-style:normal;font-size:13px;color:var(--ink-soft);font-weight:700;}

/* faq */
.faq{background:linear-gradient(180deg,var(--pink-50),#fff);}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:840px;}
.faq-item{
  background:#fff;border:1px solid var(--pink-200);border-radius:14px;
  padding:18px 20px;
}
.faq-item h3{font-size:15.5px;font-weight:800;color:var(--pink-600);}
.faq-item p{font-size:14.5px;color:var(--ink-soft);margin-top:8px;}

/* download */
.download{
  background:linear-gradient(135deg,var(--pink-400),var(--pink-600));
  color:#fff;text-align:center;border-radius:0;
}
.download h2{font-size:26px;font-weight:900;}
.download p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.92);max-width:640px;margin-left:auto;margin-right:auto;}
.download .btn{
  background:#fff;color:var(--pink-600);margin-top:26px;
  box-shadow:0 10px 24px rgba(80,10,40,.22);
}

/* footer */
.site-footer{
  background:var(--pink-50);border-top:1px solid var(--pink-200);
  padding:30px 0;font-size:12.5px;color:#a38a97;
}
.footer-inner{display:flex;flex-direction:column;gap:8px;align-items:center;text-align:center;}
.site-footer a{color:#a38a97;text-decoration:underline;}
.site-footer a:hover{color:var(--pink-500);}
.site-footer time{font-size:12px;}

@media (min-width:768px){
  .hero h1{font-size:38px;}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:48px;}
  .intro-grid{grid-template-columns:1.1fr .9fr;align-items:center;}
  .intro-cards{grid-template-columns:1fr 1fr;}
  .shelf{grid-template-columns:repeat(4,1fr);}
  .cal-grid{grid-template-columns:1fr 1.1fr;align-items:start;}
  .review-grid{grid-template-columns:1fr 1fr;}
  .sec-head h2{font-size:30px;}
  section{padding:78px 0;}
}
@media (min-width:1024px){
  .hero{padding:76px 0 88px;}
  .hero h1{font-size:44px;}
  .intro-cards{gap:20px;}
  .shelf{grid-template-columns:repeat(5,1fr);}
  .review-grid{grid-template-columns:repeat(3,1fr);}
  .nav{display:flex;}
}
@media (max-width:767px){
  .nav{display:none;}
  .header-inner{padding:10px 0;}
  .hero-visual .tall{aspect-ratio:3/4;}
}