:root{
    --green:#153f33;
    --green-2:#245d4a;
    --green-3:#e3efe7;
    --cream:#f6f1e7;
    --cream-2:#fffaf0;
    --gray:#26302d;
    --muted:#6b756f;
    --line:rgba(21,63,51,.16);
    --shadow:0 22px 60px rgba(30,45,37,.12);
    --radius:26px;
}
*{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(--gray);
    background:var(--cream-2);
    line-height:1.75;
    text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:20px;top:20px;width:auto;height:auto;background:var(--green);color:#fff;padding:10px 14px;border-radius:10px;z-index:20}
.container{width:min(1160px,calc(100% - 36px));margin:0 auto}
.section-pad{padding:88px 0}
.site-header{
    position:sticky;top:0;z-index:10;
    background:rgba(255,250,240,.9);
    backdrop-filter:saturate(140%) blur(18px);
    border-bottom:1px solid var(--line);
}
.nav-wrap{width:min(1180px,calc(100% - 28px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand,.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--green);letter-spacing:.04em}
.brand span{font-size:20px}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.main-nav a{padding:9px 13px;border-radius:999px;color:var(--muted);font-size:15px}
.main-nav a:hover,.main-nav a.active{background:var(--green-3);color:var(--green)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;color:var(--green)}
.hero{position:relative;overflow:hidden;min-height:720px;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 80% 12%,rgba(36,93,74,.16),transparent 32%),linear-gradient(135deg,#fffaf0 0%,#f4efe1 48%,#e9f1eb 100%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.hero-copy h1,.page-hero h1{font-size:clamp(36px,6vw,70px);line-height:1.08;margin:14px 0 22px;color:var(--green);letter-spacing:-.04em}
.hero-copy p,.page-hero p,.section-head p{font-size:18px;color:var(--muted);max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green-2);font-weight:800;letter-spacing:.12em;font-size:13px;text-transform:uppercase}
.eyebrow:before{content:"";width:26px;height:1px;background:var(--green-2);display:inline-block}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:34px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 22px;font-weight:800;border:1px solid transparent;transition:.2s ease;cursor:pointer}
.btn.primary{background:var(--green);color:#fff;box-shadow:0 12px 28px rgba(21,63,51,.18)}
.btn.primary:hover{transform:translateY(-2px);background:var(--green-2)}
.btn.ghost{border-color:var(--line);background:rgba(255,255,255,.55);color:var(--green)}
.domain-card{margin-top:28px;display:inline-flex;gap:10px;align-items:center;padding:12px 16px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.72)}
.domain-card span{color:var(--muted)}
.domain-card strong{color:var(--green);font-size:17px}
.hero-visual{padding:28px;border-radius:42px;background:rgba(255,255,255,.44);box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.72)}
.section-head{margin-bottom:36px}
.section-head h2,.split h2,.feature-panel h2,.recommend-box h2,.cta-card h2,.story-grid h2,.principle-list h2,.topic-node h2,.course-card h3,.contact-panel h2,.path-steps h2{font-size:clamp(26px,4vw,44px);line-height:1.18;margin:12px 0 14px;color:var(--green);letter-spacing:-.03em}
.category-grid,.cards-grid,.feature-row,.story-grid,.course-grid,.video-grid{display:grid;gap:22px}
.category-grid{grid-template-columns:repeat(4,1fr)}
.category-card,.feature-panel,.doc-card,.recommend-box,.course-card,.video-card,.contact-panel,.contact-form,.topic-node,.principle-list>div,.path-steps article,.faq-list details,.insight-grid article{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
}
.category-card{padding:22px}
.category-card img{height:150px;width:100%;object-fit:cover;border-radius:20px;background:var(--green-3)}
.category-card h3{font-size:22px;color:var(--green);margin:18px 0 6px}
.category-card p,.feature-panel p,.doc-card p,.recommend-box p,.course-card p,.video-card p,.story-grid p,.principle-list p,.topic-node p,.path-steps p,.contact-panel p,.faq-list p,.insight-grid p{color:var(--muted);margin:0}
.soft-bg{background:var(--cream)}
.split-grid{display:grid;grid-template-columns:1fr .9fr;gap:44px;align-items:center}
.split-grid.reverse{grid-template-columns:.9fr 1fr}
.rounded-img{border-radius:36px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:18px}
.check-list{padding:0;margin:26px 0 0;list-style:none;display:grid;gap:12px}
.check-list li{position:relative;padding-left:30px;color:var(--gray)}
.check-list li:before{content:"";position:absolute;left:0;top:.62em;width:14px;height:14px;border-radius:50%;background:var(--green-2);box-shadow:inset 0 0 0 4px #dbe9df}
.feature-row{grid-template-columns:repeat(3,1fr)}
.feature-panel{padding:28px;min-height:100%}
.feature-panel img{height:190px;width:100%;object-fit:cover;border-radius:22px;background:var(--green-3);margin-bottom:18px}
.dark-band{background:var(--green);color:#fff}
.dark-band .section-head h2,.dark-band .section-head p,.section-head.light h2,.section-head.light p{color:#fff}
.dark-band .eyebrow{color:#dbe9df}
.dark-band .eyebrow:before{background:#dbe9df}
.cards-grid{grid-template-columns:repeat(3,1fr)}
.cards-grid.listing{grid-template-columns:repeat(3,1fr)}
.doc-card,.video-card{overflow:hidden}
.doc-card img{height:210px;width:100%;object-fit:cover;background:var(--green-3)}
.card-body{padding:22px}
.tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--green-3);color:var(--green);font-weight:800;font-size:13px;margin-bottom:10px}
.dark-band .tag{background:rgba(255,255,255,.12);color:#fff}
.doc-card h2,.doc-card h3,.video-card h2{font-size:21px;line-height:1.35;color:var(--green);margin:6px 0 9px}
.dark-band .doc-card h3{color:var(--green)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.recommend-box{padding:34px;background:linear-gradient(135deg,#fff 0%,#edf5ef 100%)}
.recommend-box.alt{background:linear-gradient(135deg,#fff 0%,#f4eadc 100%)}
.text-link{display:inline-flex;margin-top:20px;color:var(--green);font-weight:900;border-bottom:2px solid var(--green)}
.faq-list{display:grid;gap:14px}
.faq-list details{padding:20px 24px}
.faq-list summary{cursor:pointer;font-weight:900;color:var(--green);font-size:18px}
.faq-list p{margin-top:12px}
.contact-cta{padding-top:20px}
.cta-card{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:34px;border-radius:var(--radius);background:linear-gradient(135deg,#fff 0%,#e8f1ea 100%);border:1px solid var(--line);box-shadow:var(--shadow)}
.page-hero{background:linear-gradient(135deg,#f8f2e8 0%,#edf5ef 100%)}
.page-hero.compact{padding:78px 0 68px}
.story-grid{grid-template-columns:repeat(3,1fr)}
.story-grid article{padding:30px}
.story-grid h2{font-size:30px}
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}
.mini-grid span{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;font-weight:800;color:var(--green)}
.principle-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.principle-list>div{padding:30px}
.principle-list strong{font-size:42px;color:rgba(36,93,74,.22)}
.principle-list h2{font-size:28px}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filter-pill{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px;color:var(--green);cursor:pointer}
.filter-pill.active,.filter-pill:hover{background:var(--green);color:#fff}
.topic-map{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:22px}
.topic-node{padding:26px;min-height:250px}
.topic-node.large{grid-row:span 2}
.topic-node img{height:150px;width:100%;object-fit:cover;border-radius:22px;background:var(--green-3);margin-bottom:16px}
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.insight-grid article{padding:26px;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);box-shadow:none}
.insight-grid strong{display:block;color:#fff;font-size:24px;margin-bottom:8px}
.insight-grid p{color:#dbe9df}
.path-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:center}
.path-layout>img{padding:18px;border-radius:36px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.path-steps{display:grid;gap:16px}
.path-steps article{padding:24px}
.path-steps span{font-weight:900;color:var(--green-2)}
.path-steps h2{font-size:28px}
.course-grid{grid-template-columns:repeat(3,1fr)}
.course-card{padding:28px}
.course-card h3{font-size:26px}
.course-card span{display:inline-flex;margin-top:18px;color:var(--green);font-weight:900}
.video-grid{grid-template-columns:repeat(2,1fr)}
.video-cover{position:relative;background:var(--green-3)}
.video-cover img{height:260px;width:100%;object-fit:cover}
.play-dot{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;background:rgba(255,255,255,.82);box-shadow:0 12px 30px rgba(0,0,0,.18)}
.play-dot:after{content:"";position:absolute;left:25px;top:19px;border-left:18px solid var(--green);border-top:12px solid transparent;border-bottom:12px solid transparent}
.contact-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:26px;align-items:start}
.contact-panel,.contact-form{padding:30px}
.domain-line{font-size:22px;font-weight:900;color:var(--green);word-break:break-all}
.contact-note{margin-top:24px;padding:18px;border-radius:18px;background:var(--green-3)}
.contact-note strong{display:block;color:var(--green);font-size:20px;margin-bottom:8px}
.contact-form{display:grid;gap:16px}
.contact-form label{display:grid;gap:8px;color:var(--green);font-weight:800}
.contact-form input,.contact-form textarea,.contact-form select{width:100%;border:1px solid var(--line);border-radius:16px;padding:13px 14px;background:#fff;color:var(--gray);outline:none}
.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{border-color:var(--green-2);box-shadow:0 0 0 4px rgba(36,93,74,.12)}
.form-tip{margin:0;color:var(--muted)}
.site-footer{background:#102e27;color:#dce8df;padding:56px 0 38px}
.footer-grid{width:min(1180px,calc(100% - 36px));margin:0 auto;display:grid;grid-template-columns:1.4fr .9fr 1fr 1fr;gap:28px}
.footer-brand{color:#fff;margin-bottom:14px}
.site-footer h2{font-size:18px;margin:0 0 12px;color:#fff}
.site-footer p{margin:0;color:#cbd8d0}.site-footer .muted{color:#9db0a7;font-size:14px;margin-top:8px}
@media (max-width:960px){
    .hero-grid,.split-grid,.split-grid.reverse,.path-layout,.contact-grid{grid-template-columns:1fr}
    .category-grid,.feature-row,.cards-grid,.cards-grid.listing,.story-grid,.principle-list,.course-grid,.footer-grid{grid-template-columns:repeat(2,1fr)}
    .topic-map{grid-template-columns:1fr 1fr}.topic-node.large{grid-row:auto}
    .hero{min-height:auto}.section-pad{padding:68px 0}
}
@media (max-width:720px){
    .menu-toggle{display:inline-flex}.main-nav{display:none;position:absolute;right:14px;top:70px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:10px;width:min(280px,calc(100vw - 28px));align-items:stretch;flex-direction:column}.main-nav.open{display:flex}.main-nav a{border-radius:14px}.nav-wrap{position:relative}
    .hero-copy h1,.page-hero h1{font-size:36px}.hero-copy p,.page-hero p,.section-head p{font-size:16px}
    .category-grid,.feature-row,.cards-grid,.cards-grid.listing,.two-col,.story-grid,.principle-list,.topic-map,.insight-grid,.course-grid,.video-grid,.footer-grid{grid-template-columns:1fr}
    .cta-card{align-items:flex-start;flex-direction:column}.section-pad{padding:54px 0}.page-hero.compact{padding:58px 0}
    .hero-actions{gap:10px}.btn{width:100%}.domain-card{align-items:flex-start;flex-direction:column}.mini-grid{grid-template-columns:1fr}
}