:root{
  --pine:#0E332F; --pine-soft:#14403A; --pine-text:#E9F3EE;
  --gold:#B5852F; --jade:#2F7D6C;
  --bg:#F2F5F3; --surface:#FFFFFF; --surface-2:#EDF1EE;
  --text:#17251F; --heading:#0E332F; --muted:#586762; --line:#E0E6E2;
  --accent:#A9782A; --accent-2:#2F7D6C;
  --shadow:0 1px 2px rgba(14,51,47,.05),0 12px 30px -18px rgba(14,51,47,.22);
  --maxw:1120px;
  --font-serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --font-sans:"Helvetica Neue","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  --font-cjk:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0A1614;--surface:#0F211E;--surface-2:#122723;--text:#DCE7E2;--heading:#EFF6F2;--muted:#9BAFA9;--line:#1C302B;--accent:#D6A64E;--accent-2:#62B6A0;--shadow:0 1px 2px rgba(0,0,0,.3),0 16px 34px -20px rgba(0,0,0,.6);}
}
:root[data-theme="light"]{--bg:#F2F5F3;--surface:#FFFFFF;--surface-2:#EDF1EE;--text:#17251F;--heading:#0E332F;--muted:#586762;--line:#E0E6E2;--accent:#A9782A;--accent-2:#2F7D6C;--shadow:0 1px 2px rgba(14,51,47,.05),0 12px 30px -18px rgba(14,51,47,.22);}
:root[data-theme="dark"]{--bg:#0A1614;--surface:#0F211E;--surface-2:#122723;--text:#DCE7E2;--heading:#EFF6F2;--muted:#9BAFA9;--line:#1C302B;--accent:#D6A64E;--accent-2:#62B6A0;--shadow:0 1px 2px rgba(0,0,0,.3),0 16px 34px -20px rgba(0,0,0,.6);}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
.zh{font-family:var(--font-cjk)}
:root:not([data-lang]) .zh,:root[data-lang="en"] .zh{display:none}
:root[data-lang="zh"] .en{display:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
h1,h2,h3{font-family:var(--font-serif);color:var(--heading);text-wrap:balance;font-weight:600;letter-spacing:-.01em;margin:0}
.zh h1,.zh h2,.zh h3,h1.zh,h2.zh,h3.zh{font-family:var(--font-cjk);letter-spacing:0;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
.eyebrow{font-family:var(--font-sans);font-size:12.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.eyebrow.zh{font-family:var(--font-cjk);letter-spacing:.24em}

/* nav */
header.nav{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:14px 26px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:baseline;gap:9px;font-weight:700;margin-right:auto}
.brand .cn{font-family:var(--font-cjk);font-size:21px;color:var(--heading);letter-spacing:.02em}
.brand .en2{font-family:var(--font-serif);font-size:19px;color:var(--heading)}
.brand .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);align-self:center}
.nav-links{display:flex;gap:24px}
.nav-links a{font-size:14.5px;color:var(--muted);font-weight:500;position:relative;padding:4px 0}
.nav-links a:hover,.nav-links a.active{color:var(--heading)}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1.5px;background:var(--accent);transition:right .25s}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.switches{display:flex;gap:8px;align-items:center}
.sw{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:999px;padding:6px 11px;font-size:13px;font-weight:600;cursor:pointer;font-family:var(--font-sans);transition:.2s;line-height:1}
.sw:hover{color:var(--heading);border-color:var(--accent)}
@media(max-width:860px){.nav-links{display:none}}

/* hero (home) */
.hero{position:relative;background:radial-gradient(120% 90% at 88% -10%,var(--pine-soft),transparent 55%),linear-gradient(180deg,var(--pine),var(--pine-soft));color:var(--pine-text);overflow:hidden}
.hero .wrap{padding:82px 26px 92px}
.hero .eyebrow{color:var(--gold)}
.hero h1{color:#fff;font-size:clamp(34px,5.4vw,60px);line-height:1.06;margin:20px 0 0;max-width:15ch}
.hero .lead{margin-top:22px;max-width:52ch;color:#CBDDD6;font-size:clamp(16px,2vw,19px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:12px 22px;font-size:14.5px;font-weight:600;cursor:pointer;font-family:var(--font-sans);transition:.2s;border:1px solid transparent}
.btn-gold{background:var(--gold);color:#1c1405}
.btn-gold:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#EAF3EF}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.hero-meta{display:flex;gap:30px;flex-wrap:wrap;margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero-meta div{font-size:13.5px;color:#A9C4BC}
.hero-meta strong{display:block;color:#fff;font-family:var(--font-serif);font-size:16px;font-weight:600;margin-bottom:2px}
.hero-meta .zh strong{font-family:var(--font-cjk)}
.arc{position:absolute;right:-6%;bottom:-30%;width:min(560px,54vw);height:min(560px,54vw);border:1px solid rgba(181,133,47,.35);border-radius:50%;pointer-events:none}
.arc::before{content:"";position:absolute;inset:16%;border:1px solid rgba(255,255,255,.08);border-radius:50%}

/* page header (inner pages) */
.phead{background:linear-gradient(180deg,var(--pine),var(--pine-soft));color:var(--pine-text);position:relative;overflow:hidden}
.phead .wrap{padding:64px 26px 58px}
.phead .eyebrow{color:var(--gold)}
.phead h1{color:#fff;font-size:clamp(30px,4.6vw,48px);line-height:1.08;margin:16px 0 0;max-width:20ch}
.phead .lead{margin-top:18px;max-width:56ch;color:#CBDDD6;font-size:clamp(15.5px,1.8vw,18px)}

section{padding:74px 0}
.sec-head{max-width:60ch}
.sec-head h2{font-size:clamp(26px,3.6vw,38px);margin-top:12px;line-height:1.12}
.sec-head .sub{color:var(--muted);margin-top:14px;font-size:16.5px}
.tint{background:var(--surface-2)}

.lead-copy p{color:var(--text);margin-bottom:16px;max-width:60ch}

/* entities */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:start;margin-top:40px}
@media(max-width:860px){.about-grid{grid-template-columns:1fr;gap:34px}}
.entities{display:flex;flex-direction:column;gap:16px}
.entity{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.entity .flag{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-2);display:flex;align-items:center;gap:8px}
.entity h3{font-size:19px;margin:10px 0 4px}
.entity .role{color:var(--muted);font-size:14.5px}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
@media(max-width:760px){.svc-grid{grid-template-columns:1fr}}
.svc{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px 26px;box-shadow:var(--shadow);transition:transform .25s,border-color .25s}
.svc:hover{transform:translateY(-3px);border-color:var(--accent)}
.svc .num{font-family:var(--font-serif);font-size:15px;color:var(--accent);font-weight:600}
.svc h3{font-size:20px;margin:10px 0 12px}
.svc .desc{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.svc ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px}
.svc li{position:relative;padding-left:18px;color:var(--muted);font-size:15px;line-height:1.5}
.svc li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent-2)}

/* process / approach steps */
.steps{margin-top:44px;display:flex;flex-direction:column;gap:0}
.step{display:grid;grid-template-columns:80px 1fr;gap:26px;padding:26px 0;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
@media(max-width:620px){.step{grid-template-columns:1fr;gap:10px}}
.step .idx{font-family:var(--font-serif);font-size:40px;color:var(--accent);line-height:1;font-weight:600}
.step .loc{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:700}
.step .loc.zh{font-family:var(--font-cjk);letter-spacing:.2em}
.step h3{font-size:20px;margin:6px 0 8px}
.step p{color:var(--muted);font-size:15.5px;max-width:60ch}

/* bridge / presence */
.bridge{margin-top:48px;position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.bridge::before{content:"";position:absolute;left:12%;right:12%;top:34px;height:2px;background:linear-gradient(90deg,transparent,var(--accent) 20%,var(--accent-2) 80%,transparent);opacity:.5}
@media(max-width:760px){.bridge{grid-template-columns:1fr;gap:26px}.bridge::before{display:none}}
.place{text-align:center;position:relative}
.node{width:16px;height:16px;border-radius:50%;background:var(--surface);border:3px solid var(--accent);margin:26px auto 18px;position:relative;z-index:2;box-shadow:0 0 0 6px var(--bg)}
.place.exp .node{border-color:var(--muted);border-style:dashed}
.place .loc{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700}
.place .zh.loc{font-family:var(--font-cjk);letter-spacing:.2em}
.place h3{font-size:18px;margin:8px 0 6px}
.place p{color:var(--muted);font-size:14.5px;max-width:30ch;margin:0 auto}
.place .tag{display:inline-block;margin-top:10px;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border:1px dashed var(--line);border-radius:999px;padding:3px 10px}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
@media(max-width:760px){.why-grid{grid-template-columns:1fr}}
.why{border-top:2px solid var(--accent);padding-top:18px}
.why h3{font-size:18px;margin-bottom:8px}
.why p{color:var(--muted);font-size:15px}

/* cta band */
.cta-band{background:var(--pine);color:var(--pine-text)}
.cta-band .eyebrow{color:var(--gold)}
.cta-band h2{color:#fff}
.cta-band .wrap{padding:64px 26px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-top:36px}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr;gap:28px}}
.cinfo{display:flex;flex-direction:column;gap:22px}
.cblock .label{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700}
.cblock .zh.label{font-family:var(--font-cjk);letter-spacing:.2em}
.cblock .val{color:#EAF3EF;margin-top:6px;font-size:15.5px;line-height:1.6}
.cbtn{display:inline-flex;align-items:center;gap:8px;background:var(--gold);color:#1c1405;border-radius:999px;padding:13px 24px;font-weight:700;font-size:15px;margin-top:8px;width:max-content}
.cbtn:hover{filter:brightness(1.08)}
.clink{color:#EAF3EF;border-bottom:1px solid rgba(181,133,47,.6);padding-bottom:2px}

footer{background:var(--pine-soft);color:#A9C4BC;padding:40px 0;border-top:1px solid rgba(255,255,255,.08)}
.foot-in{display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between}
.foot-col h4{color:#EAF3EF;font-family:var(--font-serif);font-size:15px;margin:0 0 10px}
.foot-col .zh h4,.foot-col h4.zh{font-family:var(--font-cjk)}
.foot-col{font-size:13.5px;line-height:1.9;display:flex;flex-direction:column}
.foot-col a{color:#A9C4BC}
.foot-col a:hover{color:#EAF3EF}
.foot-ent .e{color:#CBDDD6}
.foot-ent .zh{font-family:var(--font-cjk)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:26px;padding-top:18px;font-size:12.5px;color:#7E9A93}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* ---- premium components ---- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr);gap:20px}}
.stat{border-left:2px solid var(--accent);padding-left:18px}
.stat .n{font-family:var(--font-serif);font-size:clamp(30px,4vw,44px);color:var(--heading);font-weight:600;line-height:1}
.stat .l{color:var(--muted);font-size:13.5px;margin-top:8px;line-height:1.4}
.stat .zh.l{font-family:var(--font-cjk)}
.cta-band .stat{border-color:var(--gold)}
.cta-band .stat .n{color:#fff}
.cta-band .stat .l{color:#A9C4BC}

.svc-detail{display:grid;grid-template-columns:64px 1fr;gap:26px;padding:36px 0;border-top:1px solid var(--line)}
.svc-detail:last-child{border-bottom:1px solid var(--line)}
@media(max-width:620px){.svc-detail{grid-template-columns:1fr;gap:16px}}
.ico{width:56px;height:56px;border-radius:14px;background:var(--surface-2);display:flex;align-items:center;justify-content:center;color:var(--accent);flex:none}
.ico svg{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:1.6}
.svc-detail h3{font-size:22px;margin-bottom:10px}
.svc-detail .desc{color:var(--muted);margin-bottom:16px;max-width:62ch;font-size:15.5px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag2{font-size:13px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 13px}

.val-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
@media(max-width:760px){.val-grid{grid-template-columns:1fr}}
.value{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.value .ico{width:44px;height:44px;border-radius:10px;margin-bottom:14px}
.value .ico svg{width:22px;height:22px}
.value h3{font-size:18px;margin-bottom:8px}
.value p{color:var(--muted);font-size:14.5px}

.lead-card{display:flex;gap:22px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow);margin-top:34px;max-width:660px}
@media(max-width:520px){.lead-card{flex-direction:column;text-align:center}}
.lead-card .av{width:74px;height:74px;border-radius:50%;background:linear-gradient(135deg,var(--pine),var(--jade));color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:27px;flex:none}
.lead-card h3{font-size:19px}
.lead-card .r{color:var(--accent);font-size:13.5px;font-weight:600;margin:4px 0 8px;letter-spacing:.02em}
.lead-card p{color:var(--muted);font-size:14.5px}