:root{
    --ink:#22302b;
    --muted:#63716b;
    --green:#163f33;
    --green-soft:#dce8dd;
    --moss:#7b8f72;
    --cream:#f7f1e7;
    --paper:#fffaf1;
    --sand:#e9dcc6;
    --line:rgba(34,48,43,.14);
    --shadow:0 24px 70px rgba(22,63,51,.13);
    --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
    color:var(--ink);
    background:linear-gradient(180deg,#fbf7ef 0%,#f2eadb 48%,#f7f1e7 100%);
    line-height:1.72;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
.site-header{
    position:sticky;top:0;z-index:40;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:16px clamp(18px,4vw,56px);
    background:rgba(247,241,231,.86);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);
}
.brand,.footer-brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.03em}
.brand span{display:flex;flex-direction:column;line-height:1.05}
.brand strong{font-size:22px;color:var(--green)}
.brand em{font-style:normal;font-size:12px;color:var(--muted);font-weight:600}
.site-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.site-nav a{padding:10px 14px;border-radius:999px;color:#41524b;font-size:15px;transition:.25s ease}
.site-nav a:hover,.site-nav a.active{background:var(--green);color:#fff}
.nav-toggle{display:none;border:1px solid var(--line);border-radius:999px;background:var(--paper);padding:9px 14px;color:var(--green);font-weight:700}
.section-pad{padding:clamp(56px,8vw,100px) clamp(18px,5vw,72px)}
.hero{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(320px,.98fr);gap:48px;align-items:center;min-height:calc(100vh - 74px)}
.hero-copy{max-width:760px}
.eyebrow{margin:0 0 12px;color:var(--moss);font-weight:800;letter-spacing:.16em;text-transform:uppercase;font-size:13px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(40px,6vw,82px);line-height:1.08;letter-spacing:-.05em;margin-bottom:24px;color:var(--green)}
h2{font-size:clamp(26px,3.4vw,46px);line-height:1.18;letter-spacing:-.04em;color:var(--green);margin-bottom:16px}
h3{font-size:20px;line-height:1.35;margin-bottom:10px;color:#273a34}.lead{font-size:clamp(17px,1.8vw,22px);color:#4f6158;max-width:720px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:32px 0}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 22px;font-weight:800;border:1px solid var(--green);transition:.25s ease}.btn.primary{background:var(--green);color:#fff}.btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(22,63,51,.22)}.btn.ghost{background:transparent;color:var(--green)}.btn.ghost:hover{background:#fff}.hero-points{display:flex;gap:12px;flex-wrap:wrap;padding:0;margin:0;list-style:none}.hero-points li,.note-list span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 14px;color:#44564e;font-weight:700}.hero-media{margin:0;position:relative}.hero-media:before{content:"";position:absolute;inset:12% -3% -6% 10%;border-radius:36px;background:rgba(22,63,51,.08);filter:blur(10px)}.hero-media img{position:relative;border-radius:36px;box-shadow:var(--shadow)}.soft-block{background:rgba(255,250,241,.72);border-block:1px solid var(--line)}.section-head{max-width:840px;margin:0 auto 36px;text-align:center}.section-head.compact{max-width:760px}.category-grid,.video-grid,.column-grid,.plan-grid,.values-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.category-card,.video-card,.column-grid article,.plan-grid article,.values-grid article,.recommend-list article,.path-grid article,.map-cards article,.contact-card,.message-form,.video-side article,.timeline-list article{background:rgba(255,250,241,.88);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 36px rgba(22,63,51,.06)}.category-card{padding:16px}.category-card img{border-radius:20px;margin-bottom:16px}.category-card span,.video-card span,.plan-grid span,.map-cards span,.recommend-list span,.video-side span{display:inline-flex;margin-bottom:8px;font-size:13px;font-weight:800;color:var(--moss);letter-spacing:.08em}.category-card p,.video-card p,.column-grid p,.plan-grid p,.values-grid p,.recommend-list p,.map-cards p,.video-side p{color:var(--muted);margin-bottom:0}.split-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.9fr);gap:42px;align-items:center}.split-section.reverse{grid-template-columns:minmax(280px,.9fr) minmax(0,1fr)}.split-section img{border-radius:32px;box-shadow:var(--shadow)}.note-list{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}.feature-card{border-radius:34px;padding:24px;border:1px solid var(--line);background:var(--paper);display:grid;grid-template-columns:44% 1fr;gap:24px;align-items:center;overflow:hidden}.feature-card.dark{background:var(--green);color:#fff}.feature-card.dark h2,.feature-card.dark h3{color:#fff}.feature-card.dark p{color:#dbe8df}.feature-card img{border-radius:26px}.path-wrap{background:linear-gradient(135deg,#173f33,#2e5b4c);color:#fff}.path-wrap h2,.path-wrap h3{color:#fff}.path-wrap p{color:#dbe8df}.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.path-grid article{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);padding:24px}.path-grid b{display:inline-flex;width:44px;height:44px;border-radius:50%;align-items:center;justify-content:center;background:rgba(255,255,255,.14);margin-bottom:22px}.video-card{overflow:hidden}.video-card img{width:100%;height:220px;object-fit:cover}.card-body{padding:20px}.editor-block{display:grid;grid-template-columns:minmax(0,.8fr) minmax(320px,1.2fr);gap:28px;align-items:start}.recommend-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.recommend-list article,.column-grid article,.plan-grid article,.values-grid article,.map-cards article,.video-side article,.timeline-list article{padding:24px}.learning-columns{background:rgba(220,232,221,.52);border-block:1px solid var(--line)}.column-grid{grid-template-columns:repeat(3,1fr)}.column-grid.four{grid-template-columns:repeat(4,1fr)}.faq-list{max-width:920px;margin:0 auto;display:grid;gap:14px}.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:18px 22px}.faq-list summary{cursor:pointer;font-weight:800;color:var(--green)}.faq-list p{margin:12px 0 0;color:var(--muted)}.contact-strip{display:flex;align-items:center;justify-content:space-between;gap:28px;background:var(--paper);border-top:1px solid var(--line)}.page-hero{background:radial-gradient(circle at 82% 20%,rgba(123,143,114,.18),transparent 34%),linear-gradient(180deg,#fbf7ef,#f0e5d4);text-align:center}.page-hero h1{max-width:960px;margin-inline:auto}.page-hero .lead{margin-inline:auto}.filter-panel{padding-top:28px}.filter-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:30px}.filter-btn{border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:10px 17px;color:var(--green);font-weight:800;cursor:pointer}.filter-btn.active,.filter-btn:hover{background:var(--green);color:#fff}.map-section{display:grid;grid-template-columns:minmax(280px,.9fr) minmax(0,1.1fr);gap:36px;align-items:center}.map-section>img{border-radius:34px;box-shadow:var(--shadow)}.map-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}.topic-timeline{background:rgba(255,250,241,.72)}.timeline-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.timeline-list b{display:inline-flex;color:var(--green);font-size:18px;margin-bottom:8px}.plan-grid{grid-template-columns:repeat(3,1fr)}.plan-grid ul{margin:18px 0 0;padding-left:20px;color:#475951}.values-grid{grid-template-columns:repeat(3,1fr)}.values-grid span{display:inline-flex;width:48px;height:48px;border-radius:50%;background:var(--green-soft);align-items:center;justify-content:center;color:var(--green);font-weight:900;margin-bottom:18px}.video-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:24px;align-items:start}.video-feature{background:var(--paper);border:1px solid var(--line);border-radius:36px;overflow:hidden;box-shadow:var(--shadow)}.video-feature img{width:100%}.video-meta{padding:28px}.video-meta span{font-weight:800;color:var(--moss)}.video-side{display:grid;gap:16px}.contact-grid{display:grid;grid-template-columns:minmax(260px,.85fr) minmax(320px,1.15fr);gap:24px;align-items:start}.domain-big{font-size:clamp(26px,4vw,48px);font-weight:900;line-height:1.1;color:var(--green);word-break:break-all}.message-form{display:grid;gap:16px;padding:26px}.message-form label{display:grid;gap:8px;font-weight:800;color:var(--green)}.message-form input,.message-form select,.message-form textarea{width:100%;border:1px solid var(--line);border-radius:16px;padding:13px 14px;background:#fff;color:var(--ink);font:inherit}.form-note{font-size:14px;color:var(--muted);margin:0}.site-footer{background:#132f28;color:#e7eee8;padding:56px clamp(18px,5vw,72px) 22px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr 1fr 1.1fr;gap:28px}.site-footer h3{color:#fff;font-size:17px}.site-footer p{color:#c4d1c9}.site-footer a{display:block;color:#e7eee8;margin:8px 0}.footer-brand{font-size:30px;color:#fff;margin-bottom:14px}.footer-bottom{display:flex;justify-content:space-between;gap:18px;border-top:1px solid rgba(255,255,255,.16);margin-top:34px;padding-top:18px;color:#c4d1c9}.is-hidden{display:none!important}
@media (max-width:1100px){.hero,.split-section,.split-section.reverse,.map-section,.editor-block,.video-layout,.contact-grid{grid-template-columns:1fr}.category-grid,.path-grid,.column-grid.four{grid-template-columns:repeat(2,1fr)}.two-cards{grid-template-columns:1fr}.feature-card{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.timeline-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){.site-header{align-items:flex-start}.nav-toggle{display:inline-flex}.site-nav{position:absolute;left:18px;right:18px;top:72px;display:none;flex-direction:column;align-items:stretch;padding:14px;border:1px solid var(--line);border-radius:22px;background:var(--paper);box-shadow:var(--shadow)}.site-nav.open{display:flex}.site-nav a{text-align:center}.hero{min-height:auto;padding-top:44px}.section-pad{padding:48px 18px}h1{font-size:40px}.category-grid,.video-grid,.path-grid,.column-grid,.column-grid.four,.plan-grid,.values-grid,.recommend-list,.map-cards,.timeline-list{grid-template-columns:1fr}.contact-strip,.footer-bottom{flex-direction:column;align-items:flex-start}.footer-grid{grid-template-columns:1fr}.video-card img{height:auto}.brand strong{font-size:20px}}