:root{
  --blue:#4A8FC0; --blue-deep:#2E6491; --blue-ink:#1E3D55;
  --ink:#26333C; --soft:#5C6B75;
  --cream:#FAF8F5; --mist:#EEF4F9; --sand:#F5F0E8; --line:#E4E0D8;
  --wa:#25D366; --radius:18px;
  --font:'HarmonyOS Sans SC','HarmonyOS Sans',Inter,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--cream);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.l-zh{display:none}
html[data-lang="zh"] .l-zh{display:inline}
html[data-lang="zh"] .l-en{display:none}
html[data-lang="zh"] body{letter-spacing:.01em}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:90;background:rgba(250,248,245,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.nav .logo img{height:44px;width:auto}
.nav nav{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav nav a{font-size:14.5px;font-weight:500;color:var(--soft);transition:color .2s;white-space:nowrap}
.nav nav a:hover,.nav nav a.on{color:var(--blue-deep)}
.lang-btn{border:1.5px solid var(--blue);color:var(--blue-deep);background:none;border-radius:99px;padding:5px 14px;font-size:13px;font-weight:600;cursor:pointer;font-family:var(--font)}
.nav-cta{background:var(--blue);color:#fff!important;padding:9px 18px;border-radius:99px;font-weight:600;font-size:14px;transition:background .2s}
.nav-cta:hover{background:var(--blue-deep)}
.burger{display:none;margin-left:auto;background:none;border:none;font-size:26px;color:var(--blue-ink);cursor:pointer}
@media(max-width:920px){
  .nav nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--cream);flex-direction:column;padding:18px 24px 26px;border-bottom:1px solid var(--line);gap:18px;align-items:flex-start}
  .nav nav.open{display:flex}
  .burger{display:block}
  .lang-btn{margin-left:auto}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#F4F9FD 0%,var(--mist) 55%,#FDFBF7 100%)}
.hero .wrap{position:relative;z-index:2;padding-top:84px;padding-bottom:64px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero .art{display:flex;justify-content:flex-end;align-items:flex-end}
.hero .art img{max-height:480px;width:auto;max-width:100%}
@media(max-width:880px){.hero .wrap{grid-template-columns:1fr;padding-top:52px}.hero .art{justify-content:center;order:2}.hero .art img{max-height:300px}}
.hero .blob{position:absolute;border-radius:50%;filter:blur(70px);z-index:0;pointer-events:none}
.hero .b1{width:420px;height:420px;background:rgba(148,199,238,.55);top:-140px;right:-90px;animation:drift 16s ease-in-out infinite alternate}
.hero .b2{width:320px;height:320px;background:rgba(248,222,205,.6);bottom:-120px;left:-70px;animation:drift 20s ease-in-out infinite alternate-reverse}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(46px,34px) scale(1.1)}}
.hero .art img{animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero .copy>*{opacity:0;animation:fadeUp .7s cubic-bezier(.22,.8,.36,1) forwards}
.hero .copy>*:nth-child(2){animation-delay:.12s}
.hero .copy>*:nth-child(3){animation-delay:.24s}
.hero .copy>*:nth-child(4){animation-delay:.36s}
.hero .copy>*:nth-child(5){animation-delay:.48s}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.hero .blob,.hero .art img,.hero .copy>*{animation:none!important;opacity:1!important}}
.kicker{display:inline-block;font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--blue-deep);font-weight:700;margin-bottom:18px}
.hero h1{font-size:clamp(30px,3.5vw,44px);line-height:1.22;font-weight:700;color:var(--blue-ink);max-width:640px}
.hero p.sub{margin-top:22px;font-size:clamp(16px,1.6vw,19px);color:var(--soft);max-width:520px}
.cta-row{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;white-space:nowrap;padding:14px 28px;border-radius:99px;font-weight:600;font-size:16px;transition:transform .15s,box-shadow .2s,background .2s;cursor:pointer;border:none;font-family:var(--font)}
.btn:hover{transform:translateY(-2px)}
.btn-wa{background:var(--wa);color:#fff;box-shadow:0 8px 24px rgba(37,211,102,.32)}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(74,143,192,.32)}
.btn-line{background:#fff;border:1.5px solid var(--line);color:var(--blue-ink)}
.trust{display:flex;gap:38px;margin-top:44px;flex-wrap:wrap}
.trust b{display:block;font-size:26px;color:var(--blue-deep);font-weight:700}
.trust span{font-size:13px;color:var(--soft)}

/* ---------- sections ---------- */
section{padding:84px 0}
.sec-head{max-width:640px;margin-bottom:46px}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);color:var(--blue-ink);font-weight:700;line-height:1.28}
.sec-head p{margin-top:14px;color:var(--soft)}
.center{margin-left:auto;margin-right:auto;text-align:center}
.alt{background:var(--mist)}
.alt2{background:var(--sand)}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
@media(max-width:880px){.grid3{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}}

.card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:transform .2s,box-shadow .25s}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 44px rgba(30,61,85,.12)}
.card img{height:220px;width:100%;object-fit:cover}
.card .pad{padding:24px 26px 28px}
.card h3{font-size:19px;color:var(--blue-ink);font-weight:700;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--soft)}
.card .more{display:inline-block;margin-top:14px;color:var(--blue-deep);font-weight:600;font-size:14px}
.tag{display:inline-block;background:var(--mist);color:var(--blue-deep);font-size:12px;font-weight:700;border-radius:99px;padding:3px 12px;margin-bottom:10px;letter-spacing:.05em}

.check{list-style:none}
.check li{padding-left:32px;position:relative;margin-bottom:13px;color:var(--ink)}
.check li::before{content:"";position:absolute;left:0;top:7px;width:18px;height:18px;border-radius:50%;background:var(--blue);opacity:.15}
.check li::after{content:"✓";position:absolute;left:4px;top:0;color:var(--blue-deep);font-weight:800;font-size:13px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media(max-width:880px){.split{grid-template-columns:1fr;gap:34px}}
.split img{border-radius:var(--radius);width:100%;height:420px;object-fit:cover}
@media(max-width:880px){.split img{height:280px}}

.quote{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:32px 30px}
.quote p{font-size:15.5px;color:var(--ink);font-style:italic}
.quote .who{margin-top:18px;display:flex;align-items:center;gap:12px}
.quote .who img{width:46px;height:46px;border-radius:50%;object-fit:cover}
.quote .who b{display:block;font-size:14.5px;color:var(--blue-ink);font-style:normal}
.quote .who span{font-size:12px;color:var(--soft);letter-spacing:.06em}

/* ---------- founder ---------- */
.founder{background:var(--blue-ink);color:#fff;padding:90px 0}
.founder .inner{max-width:820px;margin:0 auto;text-align:center}
.founder blockquote{font-size:clamp(17px,2vw,21px);line-height:1.9;font-weight:300}
.founder .name{margin-top:26px;font-weight:600;color:#AFCBE3;letter-spacing:.08em;font-size:14px}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--blue) 0%,var(--blue-deep) 100%);color:#fff;padding:76px 0;text-align:center}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700}
.cta-band p{margin-top:12px;opacity:.92;max-width:560px;margin-left:auto;margin-right:auto}
.cta-band .cta-row{justify-content:center}
.cta-band .btn-line{border-color:rgba(255,255,255,.55);background:transparent;color:#fff}

/* ---------- footer ---------- */
footer{background:#17293A;color:#B9C6D2;padding:64px 0 36px;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
@media(max-width:880px){.f-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.f-grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
footer a{display:block;margin-bottom:10px;color:#B9C6D2;transition:color .2s}
footer a:hover{color:#fff}
footer .logo-w{height:40px;width:auto;margin-bottom:16px;filter:brightness(0) invert(1);opacity:.92}
.f-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:24px;font-size:12.5px;color:#7E93A6;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- WhatsApp float ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:99;background:var(--wa);color:#fff;width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(37,211,102,.45);transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px}

/* ---------- page hero (inner pages) ---------- */
.page-hero{background:var(--mist);padding:76px 0 60px}
.page-hero h1{font-size:clamp(26px,3vw,38px);color:var(--blue-ink);font-weight:700;max-width:880px;line-height:1.3}
.page-hero p{margin-top:16px;color:var(--soft);max-width:600px;font-size:17px}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery img{border-radius:14px;height:230px;width:100%;object-fit:cover}
@media(max-width:880px){.gallery{grid-template-columns:repeat(2,1fr)}.gallery img{height:170px}}

/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px 36px;box-shadow:0 16px 50px rgba(30,61,85,.08)}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--blue-ink);margin:18px 0 7px}
.form-card input,.form-card select,.form-card textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;font-family:var(--font);background:var(--cream);color:var(--ink)}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{outline:none;border-color:var(--blue)}
.form-card .btn{width:100%;justify-content:center;margin-top:26px}
.form-note{font-size:12.5px;color:var(--soft);margin-top:12px;text-align:center}
.form-ok{display:none;text-align:center;padding:40px 10px}
.form-ok h3{color:var(--blue-deep);font-size:22px;margin-bottom:10px}

.addr{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 24px}
.addr h3{color:var(--blue-ink);font-size:17px;margin-bottom:6px;font-weight:700}
.addr .city{font-size:12px;letter-spacing:.14em;color:var(--blue);font-weight:700;text-transform:uppercase}
.addr p{font-size:14px;color:var(--soft);margin-top:8px}
.addr a.tel{display:inline-block;margin-top:12px;color:var(--blue-deep);font-weight:700;font-size:15px}
.addr a.map{display:inline-block;margin-top:4px;margin-left:0;color:var(--soft);font-size:13px;text-decoration:underline}

/* ---------- misc ---------- */
.hi-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:880px){.hi-list{grid-template-columns:1fr}}
.hi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.hi h3{font-size:16.5px;color:var(--blue-ink);margin-bottom:8px;font-weight:700}
.hi p{font-size:14px;color:var(--soft)}
.hi .ico{width:44px;height:44px;border-radius:12px;background:var(--mist);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.breadcrumb{font-size:13px;color:var(--soft);margin-bottom:14px}
.breadcrumb a{color:var(--blue-deep);font-weight:600}