:root{
  --blue:#8fd3ff;
  --blue-deep:#2f7fb8;
  --yellow:#fff2ad;
  --orange:#ffb36b;
  --orange-deep:#df7a26;
  --cream:#fffaf0;
  --white:#ffffff;
  --ink:#203040;
  --muted:#627083;
  --line:#e8eef5;
  --shadow:0 20px 50px rgba(54,104,148,.14);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fffdf8;line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
.container{width:min(1160px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,253,248,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(190,210,226,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:900;font-size:1.24rem;color:#264762}
.brand-mark{width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,var(--blue),var(--yellow));display:grid;place-items:center;box-shadow:0 8px 18px rgba(47,127,184,.16)}
.brand-text{letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.main-nav a{padding:10px 14px;border-radius:999px;font-weight:700;color:#4b6178;font-size:.96rem}
.main-nav a:hover,.main-nav .is-active{background:#eaf7ff;color:#1c6fa8}
.nav-toggle{display:none;border:0;background:#eaf7ff;border-radius:14px;padding:10px 13px;color:#1d628f;font-size:1.2rem}
.soft-bg{background:radial-gradient(circle at 12% 15%,rgba(255,242,173,.9),transparent 30%),radial-gradient(circle at 88% 22%,rgba(143,211,255,.7),transparent 32%),linear-gradient(180deg,#fffdf8 0%,#f7fcff 100%)}
.hero{padding:78px 0 70px;overflow:hidden}
.hero-grid,.page-hero-grid,.split-grid,.guide-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.hero-copy h1,.page-hero h1{font-size:clamp(2.25rem,5vw,4.7rem);line-height:1.12;margin:14px 0 22px;color:#20384f;letter-spacing:-.04em}
.hero-copy p,.page-hero p,.section-head p,.split-grid p,.guide-copy p{font-size:1.06rem;color:var(--muted);margin:0 0 20px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#1c6fa8;background:#eaf7ff;border-radius:999px;padding:8px 14px;font-weight:800;font-size:.92rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 22px;font-weight:850;border:1px solid transparent;cursor:pointer;transition:.2s ease;min-height:48px}
.btn.primary{background:linear-gradient(135deg,#5eb9f1,#ffb36b);color:#fff;box-shadow:0 12px 25px rgba(47,127,184,.22)}
.btn.ghost{background:#fff;border-color:#d9eaf5;color:#2f719e}
.btn:hover{transform:translateY(-2px)}
.hero-badges,.tags{display:flex;gap:10px;flex-wrap:wrap}
.hero-badges span,.tag,.pill,.tags span{background:#fff;border:1px solid #dcebf4;border-radius:999px;padding:7px 12px;color:#42647c;font-weight:750;font-size:.9rem}
.card-art,.feature-image,.rounded-img,.page-hero-grid img{border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);padding:18px}
.section{padding:78px 0}
.tinted{background:#f7fbff}
.section-head{text-align:center;max-width:760px;margin:0 auto 34px}
.section-head h2,.split-grid h2,.guide-copy h2,.contact-card h2,.contact-info-card h2{font-size:clamp(1.75rem,3.4vw,3rem);line-height:1.18;margin:14px 0 16px;color:#223b53;letter-spacing:-.03em}
.age-grid,.content-grid,.feedback-grid,.plan-grid,.steps-card-grid{display:grid;gap:22px}
.age-grid,.content-grid.three,.feedback-grid,.plan-grid,.steps-card-grid{grid-template-columns:repeat(3,1fr)}
.info-card,.story-card,.video-card,.contact-info-card,.feedback-form,.lane-card,.value-panel,.steps-card-grid article,.plan-grid article,.safe-note,.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.info-card,.story-card{padding:24px}
.info-card img,.story-card img{height:170px;object-fit:contain;margin:0 auto 18px}
.info-card h3,.story-card h3,.video-card h3,.steps-card-grid h3{margin:10px 0 8px;font-size:1.3rem;color:#25445e}
.info-card p,.story-card p,.video-card p,.lane-card p,.steps-card-grid p{color:var(--muted);margin:0 0 14px}
.accent-blue{background:linear-gradient(180deg,#fff,#eff9ff)}
.accent-yellow{background:linear-gradient(180deg,#fff,#fff9d4)}
.accent-orange{background:linear-gradient(180deg,#fff,#fff1e5)}
.check-list{padding:0;margin:20px 0 24px;list-style:none;display:grid;gap:12px}
.check-list li{position:relative;padding-left:30px;color:#52677c}
.check-list li:before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#eaf7ff;color:#1c6fa8;font-weight:900;line-height:1.1}
.text-link{color:#1c6fa8;font-weight:900}
.guide-grid{grid-template-columns:.9fr 1.1fr}
.mini-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
.mini-cards.stacked{grid-template-columns:1fr}
.mini-cards div,.value-panel div{padding:18px;border-radius:22px;background:#fff;border:1px solid var(--line);display:grid;gap:6px}
.mini-cards strong,.value-panel strong{font-size:1.2rem;color:#25506f}
.mini-cards span,.value-panel span{color:var(--muted);font-size:.94rem}
.topic-strip{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.topic-strip.compact{justify-content:flex-start;margin-top:22px}
.topic-strip a{background:#fff;border:1px solid #dcebf4;border-radius:999px;padding:12px 18px;font-weight:850;color:#2d6f9b;box-shadow:0 10px 24px rgba(54,104,148,.08)}
.video-card{overflow:hidden}
.video-card img{width:100%;height:230px;object-fit:cover;background:#fffaf0}
.card-body{padding:20px}
.feedback-grid blockquote{margin:0;padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);color:#50677d}
.feedback-grid cite{display:block;margin-top:16px;font-style:normal;font-weight:850;color:#2f719e}
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
details{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px 22px;box-shadow:0 12px 30px rgba(54,104,148,.08)}
summary{cursor:pointer;font-weight:900;color:#24455f}
details p{color:var(--muted);margin:12px 0 0}
.contact-band{padding-top:20px}
.contact-card{padding:28px;display:flex;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(135deg,#fff,#eff9ff)}
.page-hero{padding:68px 0}
.page-hero-grid img{max-height:380px;object-fit:contain;justify-self:center}
.value-panel{padding:24px;display:grid;gap:14px;background:#fff}
.timeline .steps{counter-reset:step;padding:0;margin:0;display:grid;gap:16px;list-style:none}
.steps li{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px 22px 22px 72px;position:relative;box-shadow:0 12px 30px rgba(54,104,148,.08)}
.steps li:before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:20px;width:34px;height:34px;border-radius:14px;background:#eaf7ff;color:#1c6fa8;display:grid;place-items:center;font-weight:900}
.steps strong{display:block;font-size:1.1rem;color:#24455f}.steps span{color:var(--muted)}
.plan-grid article,.steps-card-grid article{padding:24px}.plan-grid strong{font-size:1.25rem;color:#24455f}.plan-grid span{display:block;color:var(--muted);margin-top:8px}
.age-lanes{display:grid;gap:18px}.lane-card{display:grid;grid-template-columns:120px 1fr;gap:24px;padding:26px;align-items:center}
.age-num{height:92px;border-radius:30px;background:linear-gradient(135deg,var(--blue),var(--yellow));display:grid;place-items:center;font-size:2rem;font-weight:950;color:#24455f}
.lane-card h2{margin:0 0 8px;color:#24455f}.steps-card-grid article span{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:16px;background:#fff2ad;color:#9a5c12;font-weight:950}
.soft-button{border:0;border-radius:999px;background:#eaf7ff;color:#1c6fa8;font-weight:850;padding:10px 16px;cursor:pointer}
.video-modal{position:fixed;inset:0;background:rgba(27,45,60,.36);display:grid;place-items:center;z-index:60;padding:20px}.video-modal[hidden]{display:none}.modal-panel{background:#fff;border-radius:28px;padding:30px;max-width:520px;box-shadow:var(--shadow);position:relative}.modal-close{position:absolute;right:18px;top:16px;border:0;background:#fff2ad;border-radius:50%;width:34px;height:34px;font-size:1.3rem;cursor:pointer}
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start}.contact-info-card,.feedback-form{padding:28px}.domain-large{font-size:1.35rem;font-weight:900;color:#1c6fa8;background:#eaf7ff;border-radius:18px;padding:14px 16px;word-break:break-all}.safe-note{padding:18px;margin-top:18px;display:grid;gap:8px;background:#fffaf0}.feedback-form{display:grid;gap:18px}.feedback-form label{display:grid;gap:8px;font-weight:850;color:#24455f}.feedback-form input,.feedback-form select,.feedback-form textarea{width:100%;border:1px solid #d8e7f2;border-radius:16px;padding:13px 14px;font:inherit;background:#fff;color:#203040}.form-message{margin:0;color:#1c6fa8;font-weight:850}.domain-pill{display:inline-flex;background:#eaf7ff;color:#1c6fa8;border-radius:999px;padding:8px 12px;font-weight:850;word-break:break-all}.small-text{font-size:.9rem;color:#76879a}.site-footer{background:#20384f;color:#eef7ff;padding:46px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:28px}.footer-brand{font-size:1.35rem;font-weight:950;margin-bottom:10px}.site-footer p{color:#b9d0df;margin:0}.site-footer a{display:block;color:#cde8f7;margin-top:8px}.footer-grid strong{display:block;margin-bottom:8px}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#cde8f7}
@media (max-width:920px){.nav-toggle{display:inline-flex}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px;box-shadow:var(--shadow);align-items:stretch}.main-nav.is-open{display:grid}.main-nav a{display:block}.hero-grid,.page-hero-grid,.split-grid,.guide-grid,.contact-layout{grid-template-columns:1fr}.age-grid,.content-grid.three,.feedback-grid,.plan-grid,.steps-card-grid,.footer-grid{grid-template-columns:1fr}.mini-cards{grid-template-columns:1fr}.hero{padding-top:52px}.section{padding:58px 0}.contact-card{align-items:flex-start;flex-direction:column}.lane-card{grid-template-columns:1fr}.video-card img{height:210px}}
@media (max-width:560px){.container{width:min(100% - 22px,1160px)}.header-inner{min-height:66px}.brand-mark{width:38px;height:38px}.hero-copy h1,.page-hero h1{font-size:2.25rem}.hero-actions{flex-direction:column}.btn{width:100%}.info-card,.story-card,.card-body,.contact-info-card,.feedback-form{padding:20px}.footer-bottom{display:grid}.topic-strip a{width:100%;text-align:center}.card-art,.feature-image,.rounded-img,.page-hero-grid img{padding:10px;border-radius:22px}}