/* ============ Changneng International — shared styles ============ */
:root{
  --navy-900:#0a1f3f;
  --navy-700:#12386e;
  --navy-500:#1c4d94;
  --blue-400:#2f6bc4;
  --blue-300:#4d86d4;
  --ink:#1c2534;
  --muted:#5a6577;
  --line:#e3e8f0;
  --bg:#ffffff;
  --bg-soft:#f4f7fb;
  --gold:#c9a45c;
  --radius:14px;
  --shadow:0 10px 30px rgba(10,31,63,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- top bar ---------- */
.topbar{background:var(--navy-900);color:#cdd9ec;font-size:.8rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;gap:12px;flex-wrap:wrap}
.topbar span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:88px;gap:16px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:64px;width:auto}
.brand .name{font-weight:800;color:var(--navy-700);font-size:1.15rem;line-height:1.2;letter-spacing:.02em}
.brand .name small{display:block;font-weight:600;color:var(--blue-400);font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;margin-top:3px}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-size:.9rem;font-weight:600;color:var(--ink);position:relative;padding:6px 0}
.nav a:hover{color:var(--navy-500)}
.lang{display:flex;gap:4px;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:3px}
.lang a{font-size:.78rem;font-weight:700;padding:4px 12px;border-radius:999px;color:var(--muted)}
.lang a.active{background:var(--navy-700);color:#fff}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--navy-700);border-radius:2px}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#fff;
  background:
    radial-gradient(1100px 500px at 85% -10%,rgba(77,134,212,.45),transparent 60%),
    radial-gradient(900px 500px at -10% 110%,rgba(28,77,148,.55),transparent 60%),
    linear-gradient(135deg,#0a1f3f 0%,#12386e 55%,#0d2b57 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.35) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(700px 400px at 80% 20%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(700px 400px at 80% 20%,#000 30%,transparent 75%);
}
.hero .container{position:relative;z-index:1;padding-top:96px;padding-bottom:110px;max-width:960px}
.hero .kicker{display:inline-flex;align-items:center;gap:10px;font-size:.78rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:#9db9e2;margin-bottom:22px}
.hero .kicker::before{content:"";width:36px;height:2px;background:var(--gold)}
.hero h1{font-size:clamp(2rem,4.6vw,3.4rem);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-bottom:20px}
.hero p.lead{font-size:clamp(1rem,1.6vw,1.2rem);color:#c8d6ec;max-width:720px;margin-bottom:36px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;font-weight:700;font-size:.92rem;padding:13px 28px;border-radius:10px;transition:.2s}
.btn-primary{background:var(--gold);color:#1a1305}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);overflow:hidden;margin-top:64px}
.stats div{background:rgba(10,31,63,.55);padding:20px 18px;text-align:center}
.stats b{display:block;font-size:1.7rem;font-weight:800;color:#fff}
.stats span{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:#9db9e2}

/* ---------- sections ---------- */
section{padding:88px 0}
section.alt{background:var(--bg-soft)}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head .eyebrow{font-size:.76rem;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:var(--blue-400);margin-bottom:12px}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.2rem);color:var(--navy-900);line-height:1.25;font-weight:800;letter-spacing:-.01em}
.sec-head p{margin-top:14px;color:var(--muted);font-size:1.02rem}

/* who we are */
.who-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:44px;align-items:start}
.who-grid h3{color:var(--navy-700);font-size:1.15rem;margin:26px 0 10px}
.who-grid .body p{color:#3d4859;margin-bottom:14px}
.facts{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 26px}
.facts dl{display:grid}
.facts dt{font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-400);margin-top:20px}
.facts dd{color:var(--ink);font-size:.93rem;margin-top:4px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.facts div:last-child dd{border-bottom:0}
.facts dl:last-of-type{padding-bottom:12px}
.callout{margin-top:44px;background:linear-gradient(120deg,#0d2b57,#12386e);color:#dbe6f7;border-radius:var(--radius);padding:30px 34px;font-size:.98rem;border-left:5px solid var(--gold)}
.callout b{color:#fff}

/* network */
.region-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:44px}
.region{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.region .flag{font-size:.72rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.region h3{color:var(--navy-900);font-size:1.15rem;margin-bottom:14px}
.region ul{list-style:none}
.region li{position:relative;padding-left:18px;color:#3d4859;font-size:.9rem;margin-bottom:9px}
.region li::before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;border-radius:2px;background:var(--blue-400)}
.media{display:grid;grid-template-columns:auto 1fr;gap:30px;background:linear-gradient(120deg,#0a1f3f,#12386e);color:#d5e1f3;border-radius:var(--radius);padding:34px 38px;align-items:center}
.media .big{font-size:2.6rem;font-weight:800;color:#fff;line-height:1}
.media .big small{display:block;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:#9db9e2;margin-top:6px}
.media h3{color:#fff;margin-bottom:8px;font-size:1.2rem}
.media p{font-size:.93rem}
.partners{margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.partner{background:#fff;border:1px solid var(--line);border-left:4px solid var(--navy-500);border-radius:10px;padding:16px 18px}
.partner b{display:block;color:var(--navy-900);font-size:.92rem}
.partner span{font-size:.8rem;color:var(--muted)}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.svc.wide{grid-column:1/-1}
.svc .num{font-size:.8rem;font-weight:800;letter-spacing:.2em;color:var(--gold);margin-bottom:12px}
.svc h3{color:var(--navy-900);font-size:1.18rem;margin-bottom:10px}
.svc p{color:#3d4859;font-size:.94rem;margin-bottom:16px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tags i{font-style:normal;font-size:.76rem;font-weight:600;color:var(--navy-700);background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:5px 12px}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.step::before{counter-increment:step;content:"0" counter(step);font-size:2rem;font-weight:800;color:#dbe4f2;display:block;margin-bottom:8px}
.step h4{color:var(--navy-900);margin-bottom:6px;font-size:1.02rem}
.step p{font-size:.87rem;color:var(--muted)}

/* track record */
.record-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.record{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.record.wide{grid-column:1/-1}
.record h3{color:var(--navy-900);font-size:1.1rem;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.record h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold)}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chips span{font-size:.84rem;font-weight:600;color:var(--navy-700);background:var(--bg-soft);border:1px solid var(--line);border-radius:8px;padding:7px 13px}
.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.project{border:1px solid var(--line);border-radius:10px;padding:18px;background:var(--bg-soft)}
.project b{display:block;color:var(--navy-900);font-size:1rem}
.project em{display:block;font-style:normal;font-size:.7rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-400);margin:6px 0}
.project p{font-size:.84rem;color:var(--muted)}

/* leadership */
.people{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.person{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.person .role{font-size:.72rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:6px}
.person h3{color:var(--navy-900);font-size:1.25rem;margin-bottom:14px}
.person p{font-size:.92rem;color:#3d4859;margin-bottom:10px}

/* values */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.value{background:#fff;border-top:4px solid var(--navy-500);border-radius:0 0 var(--radius) var(--radius);border:1px solid var(--line);border-top:4px solid var(--navy-500);padding:26px}
.value h4{color:var(--navy-900);margin-bottom:8px}
.value p{font-size:.9rem;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.contact-card h3{color:var(--navy-900);margin-bottom:16px}
.contact-card p{margin-bottom:12px;color:#3d4859;font-size:.95rem}
.contact-card .zh-addr{color:var(--muted);font-size:.9rem}
.contact-lines{list-style:none;margin-top:8px}
.contact-lines li{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:.93rem}
.contact-lines li:last-child{border-bottom:0}
.contact-lines b{color:var(--navy-700);min-width:90px}
.note{margin-top:40px;text-align:center;color:var(--muted);font-size:.88rem}

/* footer */
.footer{background:var(--navy-900);color:#8fa6c6;padding:44px 0 28px;font-size:.85rem}
.footer .container{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.footer a{color:#cdd9ec}
.footer a:hover{color:#fff}

/* reveal animation */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:960px){
  .who-grid,.contact-grid{grid-template-columns:1fr}
  .region-grid,.partners,.values{grid-template-columns:1fr 1fr}
  .projects{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .svc-grid{grid-template-columns:1fr}
  .record-grid,.people{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .nav{
    position:absolute;top:88px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:flex-start;padding:18px 24px;border-bottom:1px solid var(--line);display:none;gap:14px;
  }
  .nav.open{display:flex}
  .burger{display:flex}
}
@media(max-width:600px){
  .region-grid,.partners,.values,.projects,.steps{grid-template-columns:1fr}
  .media{grid-template-columns:1fr}
  .topbar .container{justify-content:center;text-align:center}
  .brand .name{display:none}
}