:root{
    --green:#123b34;
    --green-2:#1f5a4f;
    --green-soft:#d9e7df;
    --cream:#f7f0df;
    --paper:#fffaf0;
    --ink:#25302d;
    --muted:#6d756f;
    --line:#d8d0bd;
    --shadow:0 20px 60px rgba(18,59,52,.12);
    --radius:26px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;
    background:linear-gradient(180deg,var(--cream),#fbf8ef 42%,#eff5ef 100%);
    color:var(--ink);
    line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92vw);margin:0 auto}
.site-header{
    position:sticky;top:0;z-index:20;
    background:rgba(247,240,223,.92);
    border-bottom:1px solid rgba(18,59,52,.12);
    backdrop-filter:blur(14px);
}
.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:800;color:var(--green);letter-spacing:.04em}
.brand-mark{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:var(--cream);box-shadow:0 10px 22px rgba(18,59,52,.24)}
.brand-text{font-size:22px}
.site-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.site-nav a{padding:10px 14px;border-radius:999px;color:#40524d;font-size:15px}
.site-nav a:hover,.site-nav a.active{background:var(--green);color:var(--cream)}
.menu-toggle{display:none;background:transparent;border:0;padding:8px;cursor:pointer}
.menu-toggle span{display:block;width:26px;height:2px;background:var(--green);margin:6px 0}
.hero{position:relative;padding:86px 0 64px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 10%,rgba(31,90,79,.18),transparent 32%),radial-gradient(circle at 10% 60%,rgba(207,169,97,.2),transparent 36%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--green-2);font-weight:700;letter-spacing:.06em;margin:0 0 16px}
.kicker::before{content:"";width:32px;height:1px;background:var(--green-2)}
h1{font-size:clamp(34px,5vw,66px);line-height:1.08;margin:0 0 22px;color:var(--green);letter-spacing:-.04em}
.hero p{font-size:18px;color:#44534f;margin:0 0 26px;max-width:680px}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:999px;border:1px solid var(--green);font-weight:700;transition:.2s ease}
.btn.primary{background:var(--green);color:var(--cream);box-shadow:0 14px 30px rgba(18,59,52,.2)}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{color:var(--green);background:rgba(255,250,240,.42)}
.domain-pill{display:inline-flex;align-items:center;gap:10px;padding:12px 16px;border-radius:999px;background:rgba(255,250,240,.75);border:1px solid var(--line);color:#43534f;max-width:100%;overflow:hidden}
.domain-pill strong{color:var(--green);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.visual-card{position:relative;border-radius:36px;overflow:hidden;background:rgba(255,250,240,.62);border:1px solid rgba(18,59,52,.14);box-shadow:var(--shadow);padding:16px}
.visual-card img{border-radius:28px;width:100%}
.section{padding:72px 0}
.section.alt{background:rgba(255,250,240,.46);border-top:1px solid rgba(18,59,52,.08);border-bottom:1px solid rgba(18,59,52,.08)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:26px;margin-bottom:34px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.18;color:var(--green);margin:0;letter-spacing:-.03em}
.section-head p{margin:0;color:var(--muted);max-width:620px}
.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:rgba(255,250,240,.78);border:1px solid rgba(18,59,52,.12);border-radius:var(--radius);padding:24px;box-shadow:0 12px 32px rgba(18,59,52,.07)}
.card:hover{box-shadow:var(--shadow)}
.card-media{border-radius:22px;overflow:hidden;background:var(--green-soft);margin:-8px -8px 18px}
.card h3{font-size:22px;line-height:1.3;margin:0 0 10px;color:var(--green)}
.card p{color:#52605c;margin:0 0 14px}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 14px}
.tag{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--green-soft);color:var(--green);font-size:13px;font-weight:700}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;color:#6b746f;font-size:14px;margin-top:12px}
.meta-row span{padding:4px 8px;border-radius:999px;background:rgba(18,59,52,.06)}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:center}
.feature-list{display:grid;gap:14px;margin:0;padding:0;list-style:none}
.feature-list li{background:rgba(255,250,240,.74);border:1px solid rgba(18,59,52,.1);border-radius:18px;padding:16px 18px;color:#4d5c57}
.feature-list strong{display:block;color:var(--green);font-size:18px;margin-bottom:4px}
.timeline{position:relative;display:grid;gap:18px;margin:0;padding:0;list-style:none}
.timeline li{display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start}
.timeline .step{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:var(--cream);font-weight:800}
.timeline .body{padding:18px;border-radius:20px;background:rgba(255,250,240,.78);border:1px solid rgba(18,59,52,.12)}
.timeline h3{margin:0 0 6px;color:var(--green)}
.timeline p{margin:0;color:#52605c}
.filterbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filterbar button{border:1px solid rgba(18,59,52,.2);background:rgba(255,250,240,.76);padding:10px 14px;border-radius:999px;color:var(--green);font-weight:700;cursor:pointer}
.filterbar button.active{background:var(--green);color:var(--cream)}
.video-frame{position:relative;border-radius:22px;overflow:hidden;background:#102b27;margin:-8px -8px 18px}
.video-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(0,0,0,.25))}
.play{position:absolute;left:18px;bottom:18px;z-index:2;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(247,240,223,.92);color:var(--green);font-weight:900}
.faq{display:grid;gap:14px}
details{background:rgba(255,250,240,.78);border:1px solid rgba(18,59,52,.12);border-radius:20px;padding:18px 20px}
summary{font-weight:800;color:var(--green);cursor:pointer}
details p{color:#52605c;margin:12px 0 0}
.form{display:grid;gap:14px}
.form label{display:grid;gap:6px;color:var(--green);font-weight:700}
.form input,.form textarea,.form select{width:100%;border:1px solid rgba(18,59,52,.18);background:#fffaf0;border-radius:14px;padding:12px 14px;font:inherit;color:var(--ink)}
.form textarea{min-height:136px;resize:vertical}
.notice{border-left:4px solid var(--green);background:rgba(217,231,223,.6);padding:16px 18px;border-radius:16px;color:#40524d}
.site-footer{background:var(--green);color:var(--cream);padding:52px 0;margin-top:56px}
.footer-grid{display:grid;grid-template-columns:1.2fr .7fr 1fr;gap:30px}
.footer-brand{font-size:26px;font-weight:900;margin-bottom:12px}
.site-footer p{color:rgba(247,240,223,.78);margin:0 0 10px}.site-footer h2{font-size:18px;margin:0 0 14px}.site-footer a{display:block;color:rgba(247,240,223,.82);margin:7px 0}.site-footer a:hover{color:#fff}
.small-note{font-size:14px;color:var(--muted)}
@media (max-width:980px){
    .hero-grid,.split{grid-template-columns:1fr}.grid.cols-4{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(2,1fr)}.section-head{display:block}.section-head p{margin-top:12px}.footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
    .header-inner{min-height:68px}.menu-toggle{display:block}.site-nav{position:absolute;left:4vw;right:4vw;top:70px;display:none;flex-direction:column;align-items:stretch;background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow)}.site-nav.open{display:flex}.site-nav a{text-align:center}.hero{padding:52px 0 42px}.grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}.section{padding:52px 0}.footer-grid{grid-template-columns:1fr}.domain-pill{display:flex;align-items:flex-start;flex-direction:column;border-radius:22px}.timeline li{grid-template-columns:38px 1fr}.timeline .step{width:38px;height:38px}
}

.mt-18{margin-top:18px}