:root{
  --ink:#1f2925;
  --muted:#64716a;
  --green:#173f35;
  --green-2:#2f6759;
  --sage:#d9e2d4;
  --cream:#f6f1e7;
  --paper:#fffaf0;
  --line:#dde3da;
  --shadow:0 18px 44px rgba(26,43,36,.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;background:var(--cream);color:var(--ink);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1160px,calc(100% - 40px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,231,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(31,41,37,.08)}
.nav-wrap{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em}
.brand-mark{display:grid;place-items:center;width:46px;height:46px;border-radius:16px;background:var(--green);color:#fff;font-size:20px;box-shadow:0 10px 26px rgba(23,63,53,.22)}
.brand-text{font-size:18px;color:var(--green)}
.site-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.site-nav a{padding:10px 14px;border-radius:999px;color:#37443e;font-size:15px}
.site-nav a:hover,.site-nav a.is-active{background:var(--green);color:#fff}
.nav-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:8px 12px;font-size:20px;color:var(--green)}
.hero{padding:82px 0 54px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-20% -15% auto auto;width:52vw;height:52vw;min-width:360px;min-height:360px;border-radius:50%;background:radial-gradient(circle,rgba(47,103,89,.22),rgba(47,103,89,0) 64%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;position:relative}
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--green-2);font-weight:700;font-size:14px;letter-spacing:.08em;text-transform:uppercase;background:rgba(47,103,89,.08);border:1px solid rgba(47,103,89,.16);padding:7px 12px;border-radius:999px}
h1{font-size:clamp(42px,6vw,78px);line-height:1.05;margin:22px 0 22px;color:var(--green);letter-spacing:-.04em}
.hero p{font-size:18px;color:#52615a;max-width:720px;margin:0 0 28px}.lead{font-size:18px;color:#4e5d56}.actions{display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:13px 20px;font-weight:750;border:1px solid transparent}.btn.primary{background:var(--green);color:#fff}.btn.secondary{background:var(--paper);border-color:var(--line);color:var(--green)}.btn:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(23,63,53,.14)}.hero-card{position:relative;border-radius:32px;background:linear-gradient(145deg,#fffaf0,#e5ecdF);padding:20px;box-shadow:var(--shadow);border:1px solid rgba(31,41,37,.08)}.hero-card img{border-radius:24px}.hero-note{position:absolute;left:24px;bottom:24px;background:rgba(255,250,240,.9);border:1px solid rgba(31,41,37,.08);border-radius:18px;padding:14px 16px;max-width:330px;backdrop-filter:blur(10px)}.hero-note b{display:block;color:var(--green);margin-bottom:4px}.section{padding:58px 0}.section.alt{background:#fbf7ef;border-block:1px solid rgba(31,41,37,.06)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-head h2{font-size:clamp(28px,3.2vw,44px);line-height:1.14;margin:0;color:var(--green);letter-spacing:-.03em}.section-head p{max-width:620px;margin:0;color:var(--muted)}.grid{display:grid;gap:22px}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--paper);border:1px solid rgba(31,41,37,.08);border-radius:var(--radius);padding:24px;box-shadow:0 10px 26px rgba(25,48,39,.06)}.card h3{margin:12px 0 8px;color:var(--green);font-size:22px}.card p{margin:0;color:#596760}.card .thumb{margin:-8px -8px 14px;border-radius:18px;overflow:hidden;background:#e7edde}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.tag{display:inline-flex;border-radius:999px;background:rgba(47,103,89,.1);color:var(--green-2);padding:4px 10px;font-size:13px;font-weight:700}.time{font-size:13px;color:#718078}.meta-line{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:14px;padding-top:14px;border-top:1px solid rgba(31,41,37,.08)}.feature{display:grid;grid-template-columns:160px 1fr;gap:22px;align-items:center}.feature img{border-radius:22px;background:#eef1e8}.list{display:grid;gap:14px}.list-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;background:rgba(255,250,240,.72);border:1px solid rgba(31,41,37,.08);border-radius:18px;padding:16px}.num{width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800}.path{position:relative;padding-left:28px}.path:before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;background:var(--sage)}.path-step{position:relative;margin:0 0 18px;background:var(--paper);border:1px solid rgba(31,41,37,.08);border-radius:18px;padding:18px}.path-step:before{content:"";position:absolute;left:-25px;top:22px;width:14px;height:14px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px var(--cream)}.banner{border-radius:32px;background:linear-gradient(135deg,rgba(23,63,53,.96),rgba(47,103,89,.82)),url('/assets/images/knowledge-map.svg');background-size:cover;background-position:center;padding:46px;color:#fff;overflow:hidden}.banner h2,.banner h1{color:#fff}.banner p{color:rgba(255,255,255,.82);max-width:780px}.mini{font-size:14px;color:var(--muted)}.faq{display:grid;gap:14px}.faq details{background:var(--paper);border:1px solid rgba(31,41,37,.08);border-radius:18px;padding:18px}.faq summary{cursor:pointer;font-weight:800;color:var(--green)}.faq p{margin:10px 0 0;color:#596760}.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:26px}.form{display:grid;gap:14px}.form label{display:grid;gap:6px;color:#34423b;font-weight:700}.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:14px;background:#fffdf7;padding:13px 14px;font:inherit;color:var(--ink)}.form textarea{min-height:140px;resize:vertical}.notice{background:rgba(47,103,89,.09);border:1px solid rgba(47,103,89,.18);border-radius:18px;padding:16px;color:#405047}.site-footer{background:#142a24;color:#edf4ee;margin-top:48px;padding:44px 0}.footer-grid{display:grid;grid-template-columns:1.2fr .9fr 1fr;gap:28px}.site-footer p{color:rgba(237,244,238,.72);margin:8px 0 0}.small{font-size:14px}.top-gap{margin-top:18px}.page-hero{padding:58px 0 34px}.page-hero h1{font-size:clamp(36px,5vw,64px)}.video-frame{position:relative;background:#0e1f1b;border-radius:22px;overflow:hidden}.video-frame:before{content:"";display:block;padding-top:56.25%}.play{position:absolute;inset:0;display:grid;place-items:center;color:#fff}.play span{width:68px;height:68px;border-radius:50%;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);display:grid;place-items:center;font-size:26px}.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.filter-row button{border:1px solid var(--line);background:var(--paper);color:var(--green);padding:9px 13px;border-radius:999px;font-weight:700;cursor:pointer}.filter-row button.is-on{background:var(--green);color:#fff}.hide{display:none!important}
@media(max-width:920px){.hero-grid,.grid.cols-2,.grid.cols-3,.grid.cols-4,.contact-box,.footer-grid{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:10px}.feature{grid-template-columns:1fr}.hero{padding-top:48px}.hero-card{max-width:650px}.banner{padding:32px}.site-nav{display:none;position:absolute;left:20px;right:20px;top:70px;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:14px}.site-nav.is-open{display:grid}.nav-toggle{display:block}}
@media(max-width:560px){.container{width:min(100% - 28px,1160px)}.actions{display:grid}.btn{width:100%}.card{padding:20px}.hero-note{position:static;margin-top:14px}.page-hero{padding-top:38px}h1{font-size:40px}.site-footer{padding:34px 0}.nav-wrap{min-height:66px}.brand-text{display:none}}