:root {
  --blue: #7dc8f2;
  --blue-deep: #2f89c9;
  --cream: #fff3c8;
  --orange: #ffad73;
  --orange-deep: #e57943;
  --mint: #d9f5ef;
  --ink: #21364a;
  --muted: #65788a;
  --line: #e8f1f7;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(59, 125, 174, 0.14);
  --radius: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f4fbff 0%, #fffaf0 45%, #ffffff 100%);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.topline { height: 6px; background: linear-gradient(90deg, var(--blue), var(--cream), var(--orange)); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(125,200,242,.22);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; color: var(--ink); }
.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue), var(--cream));
  color: #22526e;
  box-shadow: 0 10px 24px rgba(47,137,201,.18);
}
.brand-text { font-size: 18px; letter-spacing: .5px; }
.main-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.main-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: #496172;
  font-size: 15px;
  transition: .2s ease;
}
.main-nav a:hover, .main-nav a.active { background: #eaf7ff; color: var(--blue-deep); }
.nav-toggle { display: none; border: 0; background: #eaf7ff; color: var(--blue-deep); border-radius: 14px; padding: 9px 12px; font-size: 22px; }
.hero {
  padding: 76px 0 46px;
  position: relative;
  overflow: hidden;
}
.hero::before, .hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(2px);
  opacity: .45;
  z-index: -1;
}
.hero::before { width: 300px; height: 300px; background: var(--cream); top: 26px; left: -110px; }
.hero::after { width: 250px; height: 250px; background: #d8f2ff; right: -90px; bottom: 0; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: rgba(255,243,200,.8); color: #8a5b28; font-weight: 700; font-size: 14px; }
.eyebrow::before { content: "★"; color: var(--orange-deep); }
h1 { font-size: clamp(36px, 5vw, 64px); line-height: 1.08; margin: 18px 0 18px; letter-spacing: -1px; }
.hero-lead { font-size: 18px; color: var(--muted); max-width: 680px; margin: 0 0 26px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; padding: 13px 22px; font-weight: 800; border: 1px solid transparent; cursor: pointer; transition: .2s ease; }
.btn-primary { background: linear-gradient(135deg, var(--blue-deep), #69bce8); color: white; box-shadow: 0 14px 28px rgba(47,137,201,.24); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(47,137,201,.28); }
.btn-soft { background: white; color: var(--blue-deep); border-color: #d5edf9; }
.btn-soft:hover { background: #f3fbff; }
.hero-note { display: flex; gap: 10px; color: var(--muted); font-size: 14px; flex-wrap: wrap; }
.hero-note span { background: rgba(255,255,255,.78); border: 1px solid var(--line); padding: 6px 10px; border-radius: 999px; }
.hero-card { background: rgba(255,255,255,.88); border: 1px solid #e8f3f9; border-radius: 36px; padding: 20px; box-shadow: var(--shadow); }
.section { padding: 56px 0; }
.section-soft { background: rgba(255,255,255,.55); border-top: 1px solid rgba(232,241,247,.9); border-bottom: 1px solid rgba(232,241,247,.9); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 26px; }
.section-head h2 { font-size: clamp(26px, 3.2vw, 40px); line-height: 1.18; margin: 0; }
.section-head p { margin: 8px 0 0; color: var(--muted); max-width: 620px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; }
.badge { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; background: #fff; border: 1px solid #e5f0f7; padding: 7px 11px; color: #557085; font-size: 14px; }
.badge strong { color: var(--blue-deep); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: rgba(255,255,255,.92);
  border: 1px solid #e7f1f6;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 12px 32px rgba(45, 103, 146, 0.08);
  transition: .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 18px 42px rgba(45, 103, 146, 0.12); }
.card h3 { margin: 0 0 10px; font-size: 22px; }
.card p { color: var(--muted); margin: 0 0 14px; }
.card ul { padding-left: 19px; margin: 12px 0 0; color: var(--muted); }
.card li { margin: 6px 0; }
.icon-bubble { width: 52px; height: 52px; border-radius: 18px; display: grid; place-items: center; background: linear-gradient(135deg, #e1f5ff, #fff3c8); margin-bottom: 14px; font-size: 24px; }
.media-card { display: grid; grid-template-columns: 150px 1fr; gap: 18px; align-items: center; }
.media-card img { border-radius: 22px; background: #f6fbff; border: 1px solid #edf5fa; }
.tagline { font-size: 13px; color: #7b8d9d; margin-top: 4px; }
.pill-list { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.pill { background: #f3fbff; color: #3f83ad; border-radius: 999px; padding: 6px 10px; font-size: 13px; font-weight: 700; }
.pill.orange { background: #fff1e8; color: #be6838; }
.pill.cream { background: #fff8d9; color: #917121; }
.feature-strip { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.feature-strip .mini { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 18px; }
.mini strong { display: block; margin-bottom: 6px; }
.mini span { color: var(--muted); font-size: 14px; }
.timeline { display: grid; gap: 16px; }
.step { display: grid; grid-template-columns: 58px 1fr; gap: 16px; align-items: start; }
.step-number { width: 48px; height: 48px; border-radius: 18px; background: #eaf7ff; color: var(--blue-deep); font-weight: 900; display: grid; place-items: center; }
.quote { position: relative; padding-left: 26px; }
.quote::before { content: "“"; position: absolute; left: 0; top: -8px; font-size: 46px; color: var(--orange); line-height: 1; }
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid #e5f0f7; border-radius: 20px; padding: 18px 20px; }
.faq summary { cursor: pointer; font-weight: 800; color: var(--ink); }
.faq p { color: var(--muted); margin: 12px 0 0; }
.page-hero { padding: 60px 0 34px; }
.page-hero .hero-lead { max-width: 760px; }
.info-band { background: linear-gradient(135deg, #eaf7ff, #fff6d9); border: 1px solid #dff0fb; border-radius: 34px; padding: 28px; display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; }
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.check-list li { padding-left: 30px; position: relative; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--blue-deep); font-weight: 900; }
.age-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.age-card { border-radius: 26px; padding: 20px; background: #fff; border: 1px solid var(--line); }
.age-card strong { font-size: 28px; color: var(--blue-deep); }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.video-card { overflow: hidden; padding: 0; }
.video-card img { width: 100%; border-radius: 26px 26px 0 0; }
.video-card .video-body { padding: 20px; }
.play-dot { display: inline-flex; width: 38px; height: 38px; border-radius: 999px; background: var(--blue-deep); color: white; align-items: center; justify-content: center; margin-right: 8px; }
.form-box { display: grid; gap: 14px; }
.form-box label { font-weight: 800; }
.form-box input, .form-box textarea, .form-box select {
  width: 100%;
  border: 1px solid #dcecf4;
  border-radius: 16px;
  padding: 12px 14px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}
.form-box textarea { min-height: 130px; resize: vertical; }
.form-message { display: none; background: #eaf7ff; color: var(--blue-deep); border-radius: 16px; padding: 12px 14px; font-weight: 800; }
.site-footer { margin-top: 40px; background: #20384d; color: #e8f5ff; padding: 44px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1.1fr; gap: 24px; }
.footer-grid p { color: #c7d9e5; margin: 8px 0 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding-top: 18px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: #b9d1e0; }
@media (max-width: 960px) {
  .hero-grid, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .grid-3, .video-grid { grid-template-columns: repeat(2, 1fr); }
  .age-band, .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .section-head { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .main-nav { display: none; position: absolute; left: 16px; right: 16px; top: 84px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 24px; padding: 14px; justify-content: flex-start; }
  .main-nav.open { display: flex; }
  .main-nav a { width: calc(50% - 5px); text-align: center; }
  .hero { padding-top: 46px; }
  .grid-3, .grid-2, .video-grid, .age-band, .feature-strip { grid-template-columns: 1fr; }
  .media-card { grid-template-columns: 1fr; }
  .media-card img { width: 100%; }
  .info-band { grid-template-columns: 1fr; }
  h1 { font-size: 38px; }
}