:root{
    --ink:#26312d;
    --muted:#69746d;
    --deep:#163329;
    --deep-2:#20483a;
    --sage:#6f8b79;
    --paper:#f6f1e6;
    --paper-2:#efe6d2;
    --line:rgba(38,49,45,.14);
    --light:#fffaf0;
    --shadow:0 24px 60px rgba(17,37,29,.12);
    --radius:24px;
}
*{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:
        radial-gradient(circle at 12% 6%,rgba(111,139,121,.18),transparent 28rem),
        linear-gradient(180deg,var(--paper),#fbf7ef 42%,#f4edde);
    line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{
    position:sticky;
    top:0;
    z-index:20;
    min-height:72px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    padding:14px clamp(18px,4vw,56px);
    background:rgba(246,241,230,.86);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;color:var(--deep)}
.brand-mark{
    width:42px;height:42px;border-radius:14px;
    display:grid;place-items:center;
    color:var(--light);background:linear-gradient(135deg,var(--deep),var(--sage));
    box-shadow:0 12px 30px rgba(22,51,41,.22);
}
.brand-text{font-size:1.08rem;letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:flex-end}
.main-nav a{padding:9px 13px;border-radius:999px;color:var(--muted);font-size:.95rem}
.main-nav a:hover,.main-nav a.active{background:rgba(32,72,58,.1);color:var(--deep)}
.nav-toggle{display:none;border:0;background:var(--deep);color:var(--light);border-radius:12px;padding:9px 12px;font-size:1.1rem}
.hero,.page-hero{
    width:min(1180px,calc(100% - 36px));
    margin:34px auto 0;
    display:grid;
    grid-template-columns:1.05fr .95fr;
    align-items:center;
    gap:clamp(28px,5vw,72px);
    padding:clamp(28px,5vw,64px);
    min-height:560px;
    border:1px solid var(--line);
    border-radius:36px;
    background:linear-gradient(135deg,rgba(255,250,240,.92),rgba(239,230,210,.72));
    box-shadow:var(--shadow);
    overflow:hidden;
}
.page-hero{min-height:430px;margin-top:28px}
.page-hero.wide{grid-template-columns:1.1fr .9fr}
.hero-art img,.page-hero img{filter:drop-shadow(0 26px 38px rgba(17,37,29,.17))}
.eyebrow,.section-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--deep-2);
    font-weight:800;
    letter-spacing:.12em;
    font-size:.82rem;
    text-transform:uppercase;
}
.eyebrow:before,.section-kicker:before{content:"";width:28px;height:1px;background:var(--sage)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(2.45rem,5vw,5.35rem);line-height:1.04;letter-spacing:-.06em;margin-bottom:22px;color:var(--deep)}
h2{font-size:clamp(1.7rem,3vw,3rem);line-height:1.18;letter-spacing:-.04em;color:var(--deep);margin-bottom:16px}
h3{font-size:1.18rem;line-height:1.35;color:var(--deep);margin-bottom:10px}
.lead{font-size:clamp(1rem,1.8vw,1.25rem);color:var(--muted);max-width:760px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.btn{
    display:inline-flex;align-items:center;justify-content:center;
    min-height:46px;padding:12px 22px;border-radius:999px;
    border:1px solid var(--deep-2);font-weight:800;cursor:pointer;transition:.2s ease;
}
.btn.primary{background:var(--deep);color:var(--light);box-shadow:0 16px 36px rgba(22,51,41,.18)}
.btn.ghost{background:transparent;color:var(--deep)}
.btn:hover{transform:translateY(-2px)}
.section{width:min(1120px,calc(100% - 36px));margin:82px auto}
.intro-band,.contact-cta,.quote-panel{
    display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:center;
    padding:32px;border-radius:var(--radius);background:rgba(255,250,240,.78);border:1px solid var(--line)
}
.contact-cta{grid-template-columns:1fr auto}
.quote-panel{display:block;font-size:1.35rem;color:var(--deep);padding:42px}
.section-head{max-width:780px;margin-bottom:28px}
.section-head.compact{max-width:680px}
.category-grid,.values-grid,.topic-card-grid,.course-grid,.audience-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:18px
}
.category-card,.values-grid article,.topic-card-grid article,.course-grid article,.contact-card,.note-card,.path-step,.map-node,.recommend-card,.video-card{
    background:rgba(255,250,240,.86);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 18px 50px rgba(17,37,29,.08)
}
.category-card{padding:24px;min-height:260px}
.category-card img,.topic-card-grid img{width:78px;height:78px;margin-bottom:18px}
.category-card p,.values-grid p,.topic-card-grid p,.course-grid p,.video-card p,.recommend-card p,.note-card p,.map-node p{color:var(--muted);margin-bottom:0}
.split-section{display:grid;grid-template-columns:1fr .9fr;align-items:center;gap:44px}
.split-section.reverse{grid-template-columns:.9fr 1fr}
.rounded-media{border-radius:30px;border:1px solid var(--line);background:rgba(255,250,240,.68);box-shadow:var(--shadow)}
.check-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.check-list li{position:relative;padding-left:30px;color:var(--muted)}
.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--deep);font-weight:900}
.media-panel{padding:34px;border-radius:34px;background:linear-gradient(135deg,rgba(22,51,41,.08),rgba(111,139,121,.12));border:1px solid var(--line)}
.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-row article{background:rgba(255,250,240,.78);border-radius:22px;overflow:hidden;border:1px solid var(--line)}
.feature-row article h3,.feature-row article p{padding:0 20px}.feature-row article h3{margin-top:18px}.feature-row article p{padding-bottom:22px;color:var(--muted)}
.learning-strip{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:center}
.path-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.path-cards div{padding:20px;border-radius:20px;background:var(--deep);color:var(--light)}
.path-cards b{display:block;font-size:1.8rem}.path-cards span{font-weight:800}.path-cards p{color:rgba(255,250,240,.78);margin:8px 0 0;font-size:.93rem}
.recommend-grid{display:grid;grid-template-columns:1fr;gap:18px}
.recommend-card{display:grid;grid-template-columns:240px 1fr;gap:22px;align-items:center;overflow:hidden;padding:16px}
.recommend-card img{border-radius:18px;background:var(--paper-2)}
.recommend-card span,.video-card span{display:inline-flex;color:var(--sage);font-weight:800;font-size:.86rem;margin-bottom:8px}
.faq-list{display:grid;gap:14px}.faq-list details{background:rgba(255,250,240,.82);border:1px solid var(--line);border-radius:18px;padding:18px 22px}.faq-list summary{font-weight:800;color:var(--deep);cursor:pointer}.faq-list p{color:var(--muted);margin:12px 0 0}
.values-grid article{padding:24px}.values-grid span{font-size:2.4rem;color:rgba(32,72,58,.2);font-weight:900}
.timeline-list{display:grid;gap:16px}.timeline-list article{display:grid;grid-template-columns:90px 240px 1fr;gap:18px;align-items:start;padding:20px;border-radius:20px;border:1px solid var(--line);background:rgba(255,250,240,.76)}.timeline-list b{color:var(--deep);font-size:1.3rem}.timeline-list p{color:var(--muted);margin-bottom:0}
.audience-grid{grid-template-columns:repeat(3,1fr)}.audience-grid div{padding:22px;border-radius:18px;background:rgba(22,51,41,.08);border:1px solid var(--line);font-weight:800;color:var(--deep)}
.filter-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.filter-btn{border:1px solid var(--line);background:rgba(255,250,240,.8);border-radius:999px;padding:9px 16px;color:var(--muted);cursor:pointer;font-weight:800}.filter-btn.active{background:var(--deep);color:var(--light)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.video-card{overflow:hidden}.video-card div{padding:20px}.video-card h2{font-size:1.22rem;margin-bottom:10px}
.note-card{padding:28px}.note-card ol{margin:0;padding-left:20px;color:var(--muted)}.large-note{max-width:820px}
.topic-map{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.map-node{padding:24px;min-height:190px}.map-node.large{grid-column:span 2;grid-row:span 2;background:linear-gradient(135deg,var(--deep),var(--deep-2));color:var(--light)}.map-node.large h3,.map-node.large p,.map-node.large span{color:var(--light)}.map-node span{color:var(--sage);font-weight:900}
.path-detail{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.path-step{padding:24px}.path-step b{display:inline-flex;width:46px;height:46px;border-radius:16px;background:var(--deep);color:var(--light);align-items:center;justify-content:center;margin-bottom:18px}.path-step h2{font-size:1.4rem}
.plan-section{display:grid;grid-template-columns:.6fr 1.4fr;gap:28px}.plan-table{display:grid;gap:10px}.plan-table div{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;padding:14px 18px;border-radius:16px;background:rgba(255,250,240,.82);border:1px solid var(--line)}.plan-table span{font-weight:900;color:var(--deep)}.plan-table p{margin:0;color:var(--muted)}
.video-toolbar{display:flex;align-items:center;gap:14px;padding:18px 22px;border-radius:22px;background:rgba(255,250,240,.82);border:1px solid var(--line);margin-bottom:28px}.video-toolbar label{font-weight:900;color:var(--deep)}.video-toolbar input{flex:1;min-height:48px;border:1px solid var(--line);border-radius:999px;background:#fffaf0;padding:0 18px;font:inherit}
.contact-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;align-items:start}.contact-card{padding:28px}.host-pill{display:inline-flex;max-width:100%;word-break:break-all;padding:12px 16px;border-radius:18px;background:var(--deep);color:var(--light);font-weight:900}.contact-form{display:grid;gap:16px;padding:28px;border-radius:var(--radius);background:rgba(255,250,240,.86);border:1px solid var(--line);box-shadow:0 18px 50px rgba(17,37,29,.08)}.contact-form label{display:grid;gap:8px;font-weight:800;color:var(--deep)}.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:16px;background:#fffaf0;padding:13px 14px;font:inherit;color:var(--ink)}.form-tip{font-size:.92rem;color:var(--muted);margin:0}
.site-footer{margin-top:100px;background:var(--deep);color:var(--light);padding:48px clamp(18px,4vw,56px) 24px}.footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:28px;width:min(1120px,100%);margin:auto}.site-footer p{color:rgba(255,250,240,.72);margin:10px 0 0}.footer-bottom{width:min(1120px,100%);margin:34px auto 0;padding-top:20px;border-top:1px solid rgba(255,250,240,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(255,250,240,.78)}
.is-hidden{display:none!important}
@media (max-width:980px){
    .hero,.page-hero,.split-section,.split-section.reverse,.learning-strip,.intro-band,.contact-cta,.plan-section,.contact-grid{grid-template-columns:1fr}
    .category-grid,.values-grid,.path-detail{grid-template-columns:repeat(2,1fr)}
    .feature-row,.video-grid,.course-grid,.audience-grid,.topic-card-grid{grid-template-columns:repeat(2,1fr)}
    .topic-map{grid-template-columns:repeat(2,1fr)}
    .recommend-card{grid-template-columns:180px 1fr}
}
@media (max-width:760px){
    .site-header{align-items:flex-start}.nav-toggle{display:inline-flex}.main-nav{display:none;position:absolute;left:18px;right:18px;top:68px;padding:12px;border-radius:20px;background:rgba(246,241,230,.96);border:1px solid var(--line);box-shadow:var(--shadow);justify-content:flex-start}.main-nav.open{display:flex}.main-nav a{width:100%}
    .hero,.page-hero{width:calc(100% - 24px);padding:28px 20px;border-radius:26px;min-height:unset}.section{width:calc(100% - 24px);margin:58px auto}.category-grid,.values-grid,.feature-row,.video-grid,.course-grid,.audience-grid,.topic-card-grid,.path-detail,.path-cards,.footer-grid{grid-template-columns:1fr}.topic-map{grid-template-columns:1fr}.map-node.large{grid-column:auto;grid-row:auto}.timeline-list article{grid-template-columns:1fr}.recommend-card{grid-template-columns:1fr}.plan-table div{grid-template-columns:1fr}.video-toolbar{align-items:stretch;flex-direction:column}.footer-bottom{display:grid}.quote-panel{font-size:1.08rem}.contact-cta{align-items:start}.page-hero img{max-height:280px;margin:auto}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important}}