:root{
  --bg:#f7f5ef;
  --panel:#ffffff;
  --ink:#17211b;
  --muted:#657169;
  --line:rgba(23,33,27,.12);
  --brand:#234b38;
  --brand-2:#7fbd8d;
  --soft:#edf3ec;
  --shadow:0 24px 80px rgba(23,33,27,.10);
  --radius:28px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.7;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img,video{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;top:0;z-index:40;background:rgba(247,245,239,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-shell{max-width:var(--max);margin:auto;padding:18px 22px 12px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand-lockup,.footer-logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
.brand-lockup img,.footer-logo img{border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.08)}
.nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.nav-links a{padding:9px 14px;border-radius:999px;color:var(--muted);font-size:15px}
.nav-links a:hover,.nav-links a[aria-current="page"]{background:var(--panel);color:var(--brand);box-shadow:0 12px 32px rgba(23,33,27,.08)}
.nav-toggle{display:none;border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:8px 12px;color:var(--brand)}
.search-wrap{max-width:var(--max);margin:auto;padding:0 22px 18px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center}
.search-form{display:flex;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:6px;box-shadow:0 14px 34px rgba(23,33,27,.06)}
.search-form input{flex:1;border:0;background:transparent;padding:10px 14px;outline:0;color:var(--ink);min-width:0}
.search-form button,.footer-grid button{border:0;border-radius:999px;padding:10px 16px;background:var(--brand);color:#fff;cursor:pointer}
.search-note{margin:0;color:var(--muted);font-size:14px}
.section-pad{max-width:var(--max);margin:auto;padding:96px 22px}
.hero{min-height:calc(100vh - 120px);display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:60px}
.eyebrow{margin:0 0 14px;color:var(--brand);font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:13px}
h1,h2,h3{line-height:1.14;margin:0;color:var(--ink);letter-spacing:-.035em}
h1{font-size:clamp(44px,7vw,88px)}
h2{font-size:clamp(30px,4vw,54px)}
h3{font-size:22px}.hero-lead{font-size:20px;color:var(--muted);max-width:650px;margin:24px 0 0}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:14px 20px;font-weight:800;border:1px solid var(--line);transition:.24s ease}.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.btn.ghost{background:rgba(255,255,255,.65);color:var(--brand)}.btn:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(23,33,27,.12)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:42px 0 0}.hero-stats div{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:22px;padding:18px}.hero-stats dt{font-weight:900;font-size:24px}.hero-stats dd{margin:4px 0 0;color:var(--muted)}
.hero-media{margin:0;position:relative}.hero-media img{border-radius:44px;box-shadow:var(--shadow);aspect-ratio:16/9;object-fit:cover}.hero-media figcaption{margin-top:14px;color:var(--muted);font-size:14px;text-align:center}
.section-heading{max-width:760px}.section-heading.center{text-align:center;margin:0 auto 42px}.section-heading.split{max-width:none;display:grid;grid-template-columns:1fr minmax(240px,380px);gap:30px;align-items:end;margin-bottom:34px}.section-heading.split p:last-child{color:var(--muted);margin:0}.intro-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}.intro-grid p,.prose-block p{font-size:18px;color:var(--muted);margin:0;background:rgba(255,255,255,.56);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.muted{background:linear-gradient(180deg,rgba(255,255,255,.45),rgba(237,243,236,.72));max-width:none}.muted>.section-heading,.muted>.service-grid,.muted>.data-grid,.muted>.review-grid,.muted>.video-grid,.muted>.contact-card{max-width:var(--max);margin-left:auto;margin-right:auto}
.service-grid,.video-grid,.review-grid,.column-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.service-card,.video-card,.review-card,.column-card,.data-grid article{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 14px 42px rgba(23,33,27,.06);transition:.25s ease;overflow:hidden}.service-card:hover,.video-card:hover,.column-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.service-card{padding:28px}.service-card p,.video-body p,.column-card p{color:var(--muted);margin:12px 0 0}.video-grid{grid-template-columns:repeat(3,1fr)}.video-grid.compact{grid-template-columns:repeat(3,1fr)}
.video-thumb{position:relative;aspect-ratio:16/9;background:#dfe9dd;overflow:hidden}.video-thumb img,.video-thumb video{width:100%;height:100%;object-fit:cover}.video-thumb video{position:absolute;inset:0;z-index:1;opacity:0}.video-thumb img{position:absolute;inset:0;z-index:2;transition:transform .38s ease}.video-card:hover .video-thumb img{transform:scale(1.04);filter:saturate(1.06)}.play-button{position:absolute;left:50%;top:50%;z-index:3;transform:translate(-50%,-50%) scale(.88);width:66px;height:66px;border-radius:50%;border:1px solid rgba(255,255,255,.7);background:rgba(23,33,27,.78);color:#fff;display:grid;place-items:center;cursor:pointer;opacity:0;transition:.25s ease}.video-card:hover .play-button,.video-card.is-playing .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}.video-body{padding:22px}.metrics{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.metrics li{background:var(--soft);border-radius:16px;padding:10px;color:var(--muted);font-size:13px}.metrics strong{display:block;color:var(--ink);font-size:16px}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.tags span,.column-card span{font-size:12px;color:var(--brand);background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:6px 10px;font-weight:800}.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.data-grid article{padding:30px;text-align:center}.data-grid strong{display:block;font-size:44px;color:var(--brand);line-height:1}.data-grid span{display:block;margin-top:10px;color:var(--muted)}
.column-grid{grid-template-columns:repeat(5,1fr)}.column-card{padding:24px;min-height:210px;display:flex;flex-direction:column;justify-content:space-between}.text-link{color:var(--brand);font-weight:900;border-bottom:1px solid currentColor}.review-grid{grid-template-columns:repeat(3,1fr)}.review-card{margin:0;padding:26px}.review-card blockquote{margin:0;color:var(--ink);font-size:17px}.review-card figcaption{display:flex;flex-direction:column;margin-top:18px;color:var(--muted)}.review-card strong{color:var(--brand)}
.faq-list{max-width:900px;margin:0 auto}.faq-item{border-bottom:1px solid var(--line)}.faq-item button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 0;background:transparent;border:0;color:var(--ink);font-weight:900;text-align:left;cursor:pointer}.faq-panel{color:var(--muted);padding:0 0 24px;max-width:760px}.contact-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;background:var(--panel);border:1px solid var(--line);border-radius:36px;box-shadow:var(--shadow);padding:42px}.contact-card p{color:var(--muted)}.contact-form{display:grid;gap:16px}.contact-form label{display:grid;gap:8px;font-weight:800;color:var(--brand)}.contact-form input,.contact-form textarea,.contact-form select{border:1px solid var(--line);border-radius:18px;background:#fbfaf6;padding:14px;color:var(--ink);outline:0}.contact-form [data-contact-result]{color:var(--brand);font-weight:800}.site-footer{background:#111a15;color:#eaf1ec;padding:64px 22px 22px}.footer-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:40px}.footer-grid p{color:#b6c4bc}.footer-grid h2{font-size:18px;color:#fff;margin-bottom:14px}.footer-grid a:not(.footer-logo){display:block;color:#cbd6cf;margin:8px 0}.footer-grid button{background:#24362b;margin:0 8px 8px 0}.share-result{min-height:24px}.footer-bottom{max-width:var(--max);margin:38px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#b6c4bc}.inner-hero{padding-top:84px;padding-bottom:56px}.inner-hero h1{font-size:clamp(40px,6vw,74px);max-width:880px}.inner-hero p:not(.eyebrow){max-width:760px;color:var(--muted);font-size:20px}.breadcrumb{display:flex;gap:10px;align-items:center;margin-top:30px;color:var(--muted)}.breadcrumb a{color:var(--brand);font-weight:900}.two-col{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px}.prose-block{display:grid;gap:16px}
@media (max-width:980px){.hero,.contact-card,.two-col,.intro-grid,.section-heading.split{grid-template-columns:1fr}.service-grid,.video-grid,.review-grid{grid-template-columns:repeat(2,1fr)}.column-grid,.data-grid{grid-template-columns:repeat(2,1fr)}.search-wrap{grid-template-columns:1fr}.nav-toggle{display:inline-flex}.nav-links{display:none;position:absolute;left:22px;right:22px;top:72px;background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow)}.nav-links.is-open{display:grid}.nav-links a{display:block}}
@media (max-width:640px){.section-pad{padding:68px 16px}.nav-shell,.search-wrap{padding-left:16px;padding-right:16px}.brand-lockup span{display:none}.search-form{border-radius:24px;display:grid}.search-form button{width:100%}.hero{min-height:auto;gap:34px}.hero-stats,.service-grid,.video-grid,.video-grid.compact,.review-grid,.column-grid,.data-grid,.footer-grid{grid-template-columns:1fr}.hero-media img{border-radius:28px}.metrics{grid-template-columns:1fr}.contact-card{padding:26px;border-radius:28px}.footer-bottom{display:grid}.play-button{opacity:1;width:58px;height:58px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto;transition:none!important;animation:none!important}}