:root{
    --pink-50:#fff5f8;
    --pink-100:#ffe3ee;
    --pink-200:#ffc9dd;
    --pink-300:#ffa8c9;
    --pink-400:#ff7fae;
    --pink-500:#f4548f;
    --pink-600:#d63a75;
    --ink:#3d2431;
    --ink-soft:#6b4a5c;
    --white:#ffffff;
    --radius-l:24px;
    --radius-m:16px;
    --radius-s:10px;
    --shadow:0 10px 30px rgba(214,58,117,.14);
  }
  *{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;
    background:var(--pink-50);
    color:var(--ink);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
    background-image:
      radial-gradient(circle at 12% 8%, rgba(255,168,201,.35) 0, transparent 42%),
      radial-gradient(circle at 88% 30%, rgba(255,201,221,.4) 0, transparent 46%),
      radial-gradient(circle at 50% 96%, rgba(255,227,238,.7) 0, transparent 50%);
    background-attachment:fixed;
  }
  img{max-width:100%;display:block;}
  a{color:var(--pink-600);}
  .wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,245,248,.88);
    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;flex-wrap:wrap;
  }
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);}
  .brand img{height:34px;width:auto;border-radius:8px;}
  .brand-name{font-size:20px;font-weight:800;letter-spacing:.5px;}
  .brand-name em{font-style:normal;color:var(--pink-500);}
  .nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
  .nav a{
    text-decoration:none;color:var(--ink-soft);font-size:15px;font-weight:600;
    padding:4px 2px;border-bottom:2px solid transparent;transition:color .2s,border-color .2s;
  }
  .nav a:hover{color:var(--pink-600);border-color:var(--pink-300);}
  .btn{
    display:inline-block;text-decoration:none;font-weight:700;
    background:linear-gradient(135deg,var(--pink-400),var(--pink-600));
    color:#fff;padding:12px 26px;border-radius:999px;
    box-shadow:0 8px 20px rgba(214,58,117,.3);
    transition:transform .2s,box-shadow .2s;
    font-size:15px;
  }
  .btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(214,58,117,.38);}
  .btn-sm{padding:9px 20px;font-size:14px;}

  /* ---------- hero ---------- */
  .hero{padding:56px 0 64px;position:relative;}
  .hero-grid{
    display:grid;grid-template-columns:1fr;gap:40px;align-items:center;
  }
  .hero-copy .eyebrow{
    display:inline-block;background:var(--white);border:1px solid var(--pink-200);
    color:var(--pink-600);font-size:13px;font-weight:700;
    padding:5px 14px;border-radius:999px;margin-bottom:18px;
  }
  .hero-copy h1{
    font-size:32px;line-height:1.35;font-weight:900;letter-spacing:.5px;
    margin-bottom:16px;
  }
  .hero-copy h1 span{color:var(--pink-500);}
  .hero-copy p{color:var(--ink-soft);font-size:16px;margin-bottom:14px;}
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
  .ghost{
    display:inline-block;text-decoration:none;font-weight:700;color:var(--pink-600);
    border:2px solid var(--pink-300);padding:10px 22px;border-radius:999px;
    background:var(--white);transition:background .2s,transform .2s;font-size:15px;
  }
  .ghost:hover{background:var(--pink-100);transform:translateY(-2px);}
  .hero-note{
    margin-top:22px;font-size:13.5px;color:var(--ink-soft);
    background:var(--white);border-left:4px solid var(--pink-300);
    padding:12px 16px;border-radius:0 var(--radius-s) var(--radius-s) 0;
  }
  .hero-collage{
    display:grid;grid-template-columns:1fr 1fr;gap:14px;
  }
  .hero-collage figure{
    overflow:hidden;border-radius:var(--radius-m);background:var(--pink-100);
    box-shadow:var(--shadow);
  }
  .hero-collage figure:nth-child(1){margin-top:24px;}
  .hero-collage figure:nth-child(4){margin-top:-24px;}
  .hero-collage img{
    width:100%;height:100%;object-fit:cover;
    aspect-ratio:3/4;transition:transform .5s ease;
  }
  .hero-collage figure:hover img{transform:scale(1.06);}

  /* ---------- generic section ---------- */
  section{padding:64px 0;}
  .sec-head{max-width:720px;margin:0 auto 40px;text-align:center;}
  .sec-head .kicker{
    font-size:13px;font-weight:800;letter-spacing:2px;color:var(--pink-500);
    text-transform:uppercase;display:block;margin-bottom:10px;
  }
  .sec-head h2{
    font-size:26px;font-weight:900;line-height:1.4;margin-bottom:12px;
  }
  .sec-head p{color:var(--ink-soft);font-size:15.5px;}

  /* ---------- intro ---------- */
  .intro{background:var(--white);border-radius:var(--radius-l);padding:36px 28px;box-shadow:var(--shadow);}
  .intro-grid{display:grid;grid-template-columns:1fr;gap:28px;}
  .intro-text h2{font-size:23px;font-weight:900;margin-bottom:14px;}
  .intro-text p{color:var(--ink-soft);margin-bottom:12px;font-size:15.5px;}
  .intro-text strong{color:var(--pink-600);}
  .intro-figure{border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow);}
  .intro-figure img{width:100%;object-fit:cover;aspect-ratio:4/3;}

  /* ---------- features ---------- */
  .feature-grid{
    display:grid;grid-template-columns:1fr;gap:20px;
  }
  .feature-card{
    background:var(--white);border-radius:var(--radius-m);padding:24px 22px;
    border:1px solid var(--pink-100);box-shadow:0 6px 18px rgba(214,58,117,.08);
    transition:transform .25s,box-shadow .25s;
  }
  .feature-card:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(214,58,117,.16);}
  .feature-card h3{font-size:17px;font-weight:800;margin-bottom:8px;color:var(--pink-600);}
  .feature-card p{font-size:14.5px;color:var(--ink-soft);}
  .feature-icon{
    width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
    background:var(--pink-100);color:var(--pink-600);font-weight:900;margin-bottom:14px;font-size:17px;
  }

  /* ---------- library ---------- */
  .lib-grid{
    display:grid;grid-template-columns:repeat(2,1fr);gap:16px;
  }
  .lib-card{
    background:var(--white);border-radius:var(--radius-m);overflow:hidden;
    box-shadow:0 6px 18px rgba(214,58,117,.1);
    transition:transform .25s,box-shadow .25s;
  }
  .lib-card:hover{transform:translateY(-5px);box-shadow:0 16px 30px rgba(214,58,117,.18);}
  .lib-card img{width:100%;aspect-ratio:3/4;object-fit:cover;}
  .lib-card figcaption{padding:12px 14px 16px;}
  .lib-card .tag{
    display:inline-block;font-size:11.5px;font-weight:800;color:var(--pink-600);
    background:var(--pink-100);border-radius:6px;padding:2px 8px;margin-bottom:8px;
  }
  .lib-card h3{font-size:15px;font-weight:800;line-height:1.4;}
  .lib-card p{font-size:13px;color:var(--ink-soft);margin-top:6px;}

  /* ---------- app showcase ---------- */
  .showcase{background:var(--pink-100);border-radius:var(--radius-l);padding:36px 20px;}
  .showcase-track{
    display:grid;grid-template-columns:1fr;gap:18px;
  }
  .showcase-item{
    background:var(--white);border-radius:var(--radius-m);padding:14px;
    box-shadow:var(--shadow);text-align:center;
  }
  .showcase-item img{
    width:100%;border-radius:10px;object-fit:cover;aspect-ratio:3/4;
    border:1px solid var(--pink-100);
  }
  .showcase-item p{font-size:13.5px;color:var(--ink-soft);margin-top:12px;font-weight:600;}
  .showcase-caption{margin-top:24px;text-align:center;font-size:14px;color:var(--ink-soft);}

  /* ---------- calendar ---------- */
  .cal-list{display:grid;grid-template-columns:1fr;gap:14px;}
  .cal-item{
    display:flex;gap:16px;align-items:flex-start;
    background:var(--white);border-radius:var(--radius-m);padding:18px 20px;
    box-shadow:0 6px 18px rgba(214,58,117,.08);
  }
  .cal-day{
    flex:0 0 54px;height:54px;border-radius:14px;display:grid;place-items:center;
    background:linear-gradient(135deg,var(--pink-400),var(--pink-600));color:#fff;
    font-weight:900;font-size:13px;line-height:1.2;text-align:center;
  }
  .cal-body h3{font-size:15.5px;font-weight:800;margin-bottom:4px;}
  .cal-body p{font-size:14px;color:var(--ink-soft);}

  /* ---------- reviews ---------- */
  .review-grid{display:grid;grid-template-columns:1fr;gap:18px;}
  .review-card{
    background:var(--white);border-radius:var(--radius-m);padding:22px;
    box-shadow:0 6px 18px rgba(214,58,117,.08);border-top:4px solid var(--pink-300);
  }
  .review-card .quote{font-size:15px;color:var(--ink);margin-bottom:12px;}
  .review-card .who{font-size:13px;color:var(--ink-soft);font-weight:700;}
  .stars{color:var(--pink-400);letter-spacing:3px;font-size:14px;margin-bottom:10px;}

  /* ---------- guide ---------- */
  .steps{display:grid;grid-template-columns:1fr;gap:18px;counter-reset:step;}
  .step{
    background:var(--white);border-radius:var(--radius-m);padding:22px 22px 22px 66px;
    position:relative;box-shadow:0 6px 18px rgba(214,58,117,.08);
  }
  .step::before{
    counter-increment:step;content:counter(step);
    position:absolute;left:20px;top:22px;
    width:32px;height:32px;border-radius:50%;
    background:linear-gradient(135deg,var(--pink-400),var(--pink-600));
    color:#fff;display:grid;place-items:center;font-weight:900;font-size:15px;
  }
  .step h3{font-size:16px;font-weight:800;margin-bottom:6px;}
  .step p{font-size:14.5px;color:var(--ink-soft);}

  /* ---------- faq ---------- */
  .faq-list{display:grid;grid-template-columns:1fr;gap:12px;}
  .faq-item{
    background:var(--white);border-radius:var(--radius-m);overflow:hidden;
    box-shadow:0 4px 14px rgba(214,58,117,.08);
  }
  .faq-item summary{
    cursor:pointer;list-style:none;padding:18px 22px;font-weight:800;font-size:15.5px;
    display:flex;justify-content:space-between;align-items:center;gap:12px;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";color:var(--pink-500);font-size:20px;font-weight:900;line-height:1;
    transition:transform .25s;
  }
  .faq-item[open] summary::after{transform:rotate(45deg);}
  .faq-item p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-soft);}

  /* ---------- cta ---------- */
  .cta{
    text-align:center;background:linear-gradient(135deg,#ff8fb8,#d63a75);
    border-radius:var(--radius-l);padding:46px 24px;color:#fff;
    box-shadow:0 18px 40px rgba(214,58,117,.3);
  }
  .cta h2{font-size:25px;font-weight:900;margin-bottom:12px;}
  .cta p{font-size:15.5px;margin-bottom:26px;opacity:.95;}
  .cta .btn{background:#fff;color:var(--pink-600);box-shadow:0 10px 24px rgba(0,0,0,.16);}
  .cta .btn:hover{background:var(--pink-50);}
  .cta .small{margin-top:18px;font-size:13px;opacity:.92;}

  /* ---------- footer ---------- */
  .site-footer{
    margin-top:56px;padding:34px 0 30px;
    border-top:1px solid var(--pink-200);
    background:rgba(255,255,255,.55);
    font-size:12.5px;color:#9b7f8c;
  }
  .footer-inner{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
  .footer-inner p{line-height:1.8;}
  .site-footer a{color:#9b7f8c;text-decoration:underline;}
  .site-footer a:hover{color:var(--pink-600);}
  .footer-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;}

  /* ---------- responsive ---------- */
  @media(min-width:768px){
    .hero-copy h1{font-size:40px;}
    .sec-head h2{font-size:30px;}
    .feature-grid{grid-template-columns:repeat(2,1fr);}
    .lib-grid{grid-template-columns:repeat(3,1fr);}
    .showcase-track{grid-template-columns:repeat(2,1fr);}
    .cal-list{grid-template-columns:repeat(2,1fr);}
    .review-grid{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:repeat(2,1fr);}
    .faq-list{grid-template-columns:repeat(2,1fr);}
    .intro-grid{grid-template-columns:1.15fr .85fr;align-items:center;}
    .hero-grid{grid-template-columns:1.05fr .95fr;}
    .hero-collage{gap:18px;}
    .section-pad{padding:80px 0;}
  }
  @media(min-width:1024px){
    .hero{padding:76px 0 84px;}
    .hero-copy h1{font-size:46px;}
    .feature-grid{grid-template-columns:repeat(4,1fr);}
    .lib-grid{grid-template-columns:repeat(4,1fr);}
    .showcase-track{grid-template-columns:repeat(4,1fr);}
    .cal-list{grid-template-columns:repeat(2,1fr);}
    .review-grid{grid-template-columns:repeat(3,1fr);}
    .steps{grid-template-columns:repeat(4,1fr);}
    section{padding:84px 0;}
    .intro{padding:52px 46px;}
  }