/* ==========================================================================
   Sagitta Group — styles.css
   Editorial system · Cormorant Garamond + Jost · Navy / Gold / Cream
   ========================================================================== */

:root{
  --navy:#16233f;
  --navy-deep:#0e1729;
  --gold:#b08d4f;
  --gold-lt:#c9a869;
  --cream:#f7f3ec;
  --cream-2:#efe8dd;
  --ink:#2a2a2a;
  --muted:#6f6a62;
  --line:#ddd3c4;
  --serif:'Cormorant Garamond',Georgia,'Songti SC','Noto Serif CJK SC',serif;
  --sans:'Jost',system-ui,-apple-system,'PingFang SC','Noto Sans CJK SC','Microsoft YaHei',sans-serif;
  --wrap:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family:var(--sans); font-weight:300; color:var(--ink);
  background:var(--cream); line-height:1.7; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--gold); color:var(--navy-deep); }

.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 28px; }

/* ---------- language toggle ---------- */
.zh-only{ display:none; }
body.zh .en-only{ display:none; }
body.zh .zh-only{ display:inline; }
body.zh .zh-only.block{ display:block; }

/* ---------- typography ---------- */
h1,h2,h3,h4{ font-family:var(--serif); font-weight:300; line-height:1.15; }
h1{ font-size:5.4rem; line-height:1.06; letter-spacing:.005em; }
h2{ font-size:3.1rem; color:var(--navy); }
h3{ font-size:2.2rem; font-weight:500; color:var(--navy); }
em{ font-style:italic; color:var(--gold); }
h1 em{ color:var(--gold-lt); }

.eyebrow{
  font-size:.98rem; letter-spacing:.3em; text-transform:uppercase;
  color:var(--gold); font-weight:400;
}
.rule{ width:56px; height:1px; background:var(--gold); margin:22px 0; border:0; }
.rule.mid{ margin-left:auto; margin-right:auto; }
.lead{ font-size:1.34rem; color:var(--muted); max-width:760px; line-height:1.75; }
.sec-head{ text-align:center; margin-bottom:56px; }
.sec-head .lead{ margin:18px auto 0; }

/* ---------- header ---------- */
.hdr{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:20px 0; transition:background .4s var(--ease), padding .4s var(--ease), box-shadow .4s;
}
.hdr.solid{
  background:rgba(247,243,236,.96);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  padding:12px 0; box-shadow:0 1px 0 var(--line);
}
.hdr-in{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand{ display:flex; align-items:center; gap:10px; color:var(--cream); transition:color .4s; }
.hdr.solid .brand{ color:var(--navy); }
.brand img{ height:34px; width:auto; }
/* logo swaps with the header state: light over the hero, navy once solid */
.hdr .logo-dark{ display:none; }
.hdr.solid .logo-light{ display:none; }
.hdr.solid .logo-dark{ display:block; }
.foot .brand img{ height:44px; }
.brand-zh{ font-size:.72rem; letter-spacing:.22em; opacity:.7; }

.nav{ display:flex; align-items:center; gap:30px; }
.nav a{
  font-size:.82rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--cream); opacity:.85; position:relative; padding:4px 0; transition:color .3s,opacity .3s;
}
.hdr.solid .nav a{ color:var(--navy); }
.nav a::after{
  content:''; position:absolute; left:0; bottom:0; width:0; height:1px;
  background:var(--gold); transition:width .35s var(--ease);
}
.nav a:hover::after,.nav a.cur::after{ width:100%; }
.nav a.cur,.nav a:hover{ color:var(--gold-lt); opacity:1; }
.hdr.solid .nav a.cur,.hdr.solid .nav a:hover{ color:var(--gold); }

.lang{
  font-family:var(--sans); font-size:.68rem; letter-spacing:.14em; cursor:pointer;
  background:none; border:1px solid currentColor; color:var(--cream);
  padding:6px 12px; opacity:.8; transition:all .3s;
}
.hdr.solid .lang{ color:var(--navy); }
.lang:hover{ background:var(--gold); border-color:var(--gold); color:var(--navy-deep); opacity:1; }

.burger{ display:none; background:none; border:0; cursor:pointer; padding:8px; }
.burger span{
  display:block; width:24px; height:1.5px; background:var(--cream);
  margin:5px 0; transition:background .4s;
}
.hdr.solid .burger span{ background:var(--navy); }

.mnav{
  display:none; position:fixed; inset:0; z-index:99; background:var(--navy-deep);
  flex-direction:column; align-items:center; justify-content:center; gap:6px;
  opacity:0; pointer-events:none; transition:opacity .35s var(--ease);
}
.mnav.open{ opacity:1; pointer-events:auto; }
.mnav a{
  font-family:var(--serif); font-size:2rem; color:var(--cream); padding:10px 0;
}
.mnav a.cur{ color:var(--gold-lt); font-style:italic; }
.mnav-x{
  position:absolute; top:24px; right:26px; background:none; border:0;
  color:var(--cream); font-size:2rem; cursor:pointer; line-height:1; font-family:var(--sans); font-weight:200;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-block; font-size:.86rem; letter-spacing:.2em; text-transform:uppercase;
  padding:15px 34px; font-weight:500; cursor:pointer; border:1px solid transparent;
  transition:all .35s var(--ease); font-family:var(--sans);
}
.btn.solid{ background:var(--gold); color:var(--navy-deep); }
.btn.solid:hover{ background:var(--gold-lt); transform:translateY(-2px); }
.btn.ghost{ border-color:rgba(247,243,236,.5); color:var(--cream); }
.btn.ghost:hover{ border-color:var(--gold); color:var(--gold-lt); }
.btn.dark{ border-color:var(--navy); color:var(--navy); }
.btn.dark:hover{ background:var(--navy); color:var(--cream); }
.btnrow{ display:flex; gap:14px; flex-wrap:wrap; margin-top:34px; }

/* ---------- hero ---------- */
.hero{
  position:relative; min-height:92vh; display:flex; align-items:flex-end;
  background:var(--navy); overflow:hidden; padding-bottom:76px;
}
.hero.short{ min-height:64vh; padding-bottom:60px; }
.hero-bg{ position:absolute; inset:0; }
.hero-bg img{ width:100%; height:100%; object-fit:cover; }
.hero-bg::after{
  content:''; position:absolute; inset:0;
  background:
    linear-gradient(to top, rgba(14,23,41,.92) 0%, rgba(14,23,41,.55) 34%, rgba(14,23,41,0) 62%),
    linear-gradient(105deg, rgba(14,23,41,.86) 0%, rgba(14,23,41,.45) 46%, rgba(22,35,63,.16) 100%);
}
.hero-in{ position:relative; z-index:2; color:var(--cream); width:100%; }
.hero-sub{ font-size:1.4rem; line-height:1.65; max-width:700px; color:rgba(247,243,236,.82); margin-top:6px; }
.hero-zh{ font-size:1.2rem; color:rgba(247,243,236,.6); margin-top:10px; letter-spacing:.06em; }

/* ---------- sections ---------- */
.sec{ padding:104px 0; }
.sec.tight{ padding:72px 0; }
.sec.cream2{ background:var(--cream-2); }

/* ---------- stats ---------- */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); background:var(--navy); color:var(--cream); }
.stats.three{ grid-template-columns:repeat(3,1fr); }
.stat{ padding:60px 22px; text-align:center; border-right:1px solid rgba(247,243,236,.13); }
.stat:last-child{ border-right:0; }
.stat .n{ font-family:var(--serif); font-size:4rem; color:var(--gold-lt); line-height:1; }
.stat .l{ font-size:.78rem; letter-spacing:.22em; text-transform:uppercase; color:rgba(247,243,236,.68); margin-top:12px; }

/* ---------- cards ---------- */
.cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.card{
  background:#fff; border:1px solid var(--line); overflow:hidden;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease);
}
.card:hover{ transform:translateY(-6px); box-shadow:0 18px 44px rgba(22,35,63,.13); }
.card-img{ height:210px; position:relative; overflow:hidden; background:var(--navy); }
.card-img img{ width:100%; height:100%; object-fit:cover; transition:transform .7s var(--ease); }
.card:hover .card-img img{ transform:scale(1.05); }
.card-num{
  position:absolute; top:16px; left:18px; font-family:var(--serif); font-style:italic;
  font-size:1.9rem; color:var(--gold-lt); z-index:2;
}
.card-in{ padding:34px 30px 40px; }
.card .zh{ font-size:1.02rem; color:var(--gold); letter-spacing:.1em; margin:5px 0 12px; }
.card p{ font-size:1.16rem; color:var(--muted); line-height:1.8; }

/* ---------- split ---------- */
.split{ display:grid; grid-template-columns:1fr 1fr; align-items:stretch; }
.split.flip .split-img{ order:2; }
.split-img{ position:relative; min-height:460px; background:var(--navy); }
.split-img.portrait{ min-height:460px; background:var(--cream); }
.split-img.portrait img{ object-position:center center; }
.split-img img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; object-position:center 35%; }
.split-txt{ padding:84px 68px; background:var(--cream-2); display:flex; flex-direction:column; justify-content:center; }
.split-txt p{ font-size:1.26rem; color:var(--muted); line-height:1.9; margin-top:16px; }
.sig{ font-family:var(--serif); font-style:italic; font-size:2rem; color:var(--navy); margin-top:28px; }
.sig small{
  display:block; font-family:var(--sans); font-style:normal; font-size:.64rem;
  letter-spacing:.2em; text-transform:uppercase; color:var(--gold); margin-top:6px;
}

/* ---------- credentials ---------- */
.creds{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.cred{
  border:1px solid var(--line); background:#fff; padding:11px 19px;
  font-size:.88rem; letter-spacing:.13em; text-transform:uppercase; color:var(--navy);
}
.cred b{ color:var(--gold); font-weight:600; }

/* ---------- timeline ---------- */
.tl{ max-width:860px; margin:0 auto; }
.tl-item{ display:grid; grid-template-columns:132px 1fr; gap:26px; padding:26px 0; border-bottom:1px solid var(--line); }
.tl-item:last-child{ border-bottom:0; }
.tl-yr{ font-family:var(--serif); font-style:italic; font-size:2.3rem; color:var(--gold); }
.tl-c h4{ font-size:1.85rem; font-weight:600; color:var(--navy); margin-bottom:6px; }
.tl-c p{ font-size:1.2rem; color:var(--muted); line-height:1.8; }

/* ---------- service rows ---------- */
.srow{ display:grid; grid-template-columns:86px 1fr; gap:28px; padding:40px 0; border-bottom:1px solid var(--line); }
.srow:last-child{ border-bottom:0; }
.srow-n{ font-family:var(--serif); font-style:italic; font-size:2.7rem; color:var(--gold); line-height:1; }
.srow-b .zh{ font-size:1.02rem; color:var(--gold); letter-spacing:.1em; margin:6px 0 12px; }
.srow-b p{ font-size:1.24rem; color:var(--muted); line-height:1.75; max-width:900px; }
.soon{ font-size:.6rem; letter-spacing:.18em; color:var(--gold); vertical-align:middle; margin-left:10px; }
.tags{ display:flex; flex-wrap:wrap; gap:8px; margin-top:18px; }
.tag{
  font-size:.84rem; letter-spacing:.12em; text-transform:uppercase; color:var(--navy);
  background:var(--cream-2); border:1px solid var(--line); padding:7px 14px;
}

/* ---------- steps ---------- */
.step{ display:grid; grid-template-columns:54px 1fr; gap:22px; padding:24px 0; border-bottom:1px solid var(--line); }
.step:last-child{ border-bottom:0; }
.step-n{
  width:46px; height:46px; border:1px solid var(--gold); color:var(--gold); border-radius:50%;
  display:flex; align-items:center; justify-content:center; font-family:var(--serif); font-size:1.3rem;
}
.step-c h4{ font-size:1.78rem; font-weight:600; color:var(--navy); margin-bottom:4px; }
.step-c p{ font-size:1.16rem; color:var(--muted); line-height:1.8; }

/* ---------- form ---------- */
.appt{ display:grid; grid-template-columns:1.1fr 1fr; gap:56px; align-items:start; }
.form{ background:var(--navy); color:var(--cream); padding:54px 48px; }
.form h3{ color:var(--cream); font-size:2.3rem; margin-bottom:26px; }
.form h3 em{ color:var(--gold-lt); }
.field{ margin-bottom:22px; }
.field label{
  display:block; font-size:.82rem; letter-spacing:.18em; text-transform:uppercase;
  color:rgba(247,243,236,.6); margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%; background:transparent; border:0; border-bottom:1px solid rgba(247,243,236,.3);
  color:var(--cream); font-family:var(--sans); font-size:1.18rem; font-weight:300;
  padding:9px 0; outline:none; transition:border-color .3s;
}
.field textarea{ resize:vertical; min-height:86px; }
.field input:focus,.field select:focus,.field textarea:focus{ border-color:var(--gold); }
.field input::placeholder,.field textarea::placeholder{ color:rgba(247,243,236,.3); font-style:italic; }
.field select option{ background:var(--navy); color:var(--cream); }
.form .btn.solid{ width:100%; text-align:center; margin-top:8px; }
.formnote{ font-size:.9rem; color:rgba(247,243,236,.5); line-height:1.7; margin-top:18px; }

/* ---------- insights ---------- */
.feat{ display:grid; grid-template-columns:42% 58%; border:1px solid var(--line); background:#fff; margin-bottom:44px; }
.feat-img{ position:relative; min-height:330px; background:var(--navy); }
.feat-img img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.feat-t{ padding:58px 52px; display:flex; flex-direction:column; justify-content:center; }
.meta{ font-size:.84rem; letter-spacing:.19em; text-transform:uppercase; color:var(--gold); margin-bottom:14px; }
.feat-t h3{ font-size:2.6rem; font-weight:400; line-height:1.25; }
.feat-t p{ font-size:1.22rem; color:var(--muted); line-height:1.85; margin-top:16px; }
.readmore{
  font-size:.84rem; letter-spacing:.2em; text-transform:uppercase; color:var(--navy);
  border-bottom:1px solid var(--gold); align-self:flex-start; margin-top:24px; padding-bottom:4px;
  transition:color .3s, letter-spacing .3s;
}
.readmore:hover{ color:var(--gold); letter-spacing:.24em; }
.posts{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.post{ background:#fff; border:1px solid var(--line); transition:transform .4s var(--ease), box-shadow .4s; }
.post:hover{ transform:translateY(-6px); box-shadow:0 18px 44px rgba(22,35,63,.12); }
.post-img{ height:160px; position:relative; overflow:hidden; background:var(--navy); }
.post-img img{ width:100%; height:100%; object-fit:cover; transition:transform .7s var(--ease); }
.post:hover .post-img img{ transform:scale(1.05); }
.post-in{ padding:30px 28px 34px; }
.post-in h4{ font-size:1.72rem; font-weight:500; color:var(--navy); line-height:1.35; margin-bottom:10px; }
.post-in p{ font-size:1.1rem; color:var(--muted); line-height:1.75; }

/* ---------- contact ---------- */
.cgrid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.cbox{ background:#fff; border:1px solid var(--line); padding:50px 32px; text-align:center; }
.cbox .ico{ font-family:var(--serif); font-style:italic; font-size:2.7rem; color:var(--gold); }
.cbox h4{ font-size:1.92rem; font-weight:500; color:var(--navy); margin:12px 0 12px; }
.cbox p{ font-size:1.16rem; color:var(--muted); line-height:1.9; }
.cbox a:hover{ color:var(--gold); }
.cbox .zh{ font-size:1.02rem; color:var(--gold); margin-top:8px; letter-spacing:.08em; }
.mapbox{ margin-top:38px; border:1px solid var(--line); height:380px; background:var(--cream-2); }
.mapbox iframe{ width:100%; height:100%; border:0; display:block; filter:grayscale(.35) contrast(1.05); }
.duo{ display:grid; grid-template-columns:1fr 1fr; gap:26px; margin-top:38px; }
.duo>div{ padding:38px 34px; }
.duo .lt{ background:#fff; border:1px solid var(--line); }
.duo .dk{ background:var(--navy); color:rgba(247,243,236,.75); }
.duo .dk .eyebrow{ color:var(--gold-lt); }
.duo dl{ font-size:1.16rem; line-height:2.1; margin-top:12px; }
.duo .lt dl{ color:var(--muted); }

/* ---------- footer ---------- */
.foot{ background:var(--navy-deep); color:rgba(247,243,236,.62); padding:64px 0 26px; }
.foot-t{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px;
  padding-bottom:34px; border-bottom:1px solid rgba(247,243,236,.14);
}
.foot .brand{ color:var(--cream); align-items:flex-start; }
.fcol h5{ font-size:.62rem; letter-spacing:.2em; text-transform:uppercase; color:var(--gold-lt); margin-bottom:14px; }
.fcol p,.fcol a{ font-size:.8rem; line-height:2; display:block; }
.fcol a:hover{ color:var(--gold-lt); }
.foot-b{
  display:flex; justify-content:space-between; padding-top:22px;
  font-size:.7rem; letter-spacing:.06em; flex-wrap:wrap; gap:8px;
}

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:none; }

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav{ display:none; }
  .burger{ display:block; }
  .mnav{ display:flex; }
  .cards,.posts,.cgrid{ grid-template-columns:1fr; }
  .split,.appt,.feat,.duo{ grid-template-columns:1fr; }
  .split.flip .split-img{ order:0; }
  .split-img,.feat-img{ min-height:280px; }
  .split-txt{ padding:52px 28px; }
  .feat-t{ padding:38px 28px; }
  .stats,.stats.three{ grid-template-columns:1fr 1fr; }
  .stat{ border-right:0; border-bottom:1px solid rgba(247,243,236,.13); }
  .foot-t{ grid-template-columns:1fr 1fr; }
  .sec{ padding:68px 0; }
  .hero{ min-height:82vh; }
  .tl-item{ grid-template-columns:96px 1fr; gap:18px; }

  /* the enlarged desktop scale is too big for phones — step it down */
  h1{ font-size:3.4rem; }
  h2{ font-size:2.2rem; }
  h3{ font-size:1.62rem; }
  .stat .n{ font-size:2.8rem; }
  .stat .l{ font-size:.7rem; }
  .eyebrow{ font-size:.82rem; letter-spacing:.24em; }
  .lead{ font-size:1.1rem; }
  .hero-sub{ font-size:1.12rem; }
  .hero-zh{ font-size:1rem; }
  .card p,.step-c p,.cbox p,.duo dl{ font-size:1rem; }
  .split-txt p,.srow-b p,.feat-t p,.tl-c p{ font-size:1.06rem; }
  .feat-t h3{ font-size:1.9rem; }
  .post-in h4,.step-c h4,.tl-c h4,.cbox h4{ font-size:1.4rem; }
  .post-in p{ font-size:.98rem; }
  .sig{ font-size:1.6rem; }
  .form h3{ font-size:1.8rem; }
  .field input,.field select,.field textarea{ font-size:1.04rem; }
  .tl-yr{ font-size:1.8rem; }
  .srow-n{ font-size:2rem; }
}
@media (max-width:520px){
  h1{ font-size:2.7rem; }
  h2{ font-size:1.9rem; }
  .stats,.stats.three,.foot-t{ grid-template-columns:1fr; }
  .wrap{ padding:0 20px; }
  .srow{ grid-template-columns:1fr; gap:8px; }
  .form{ padding:36px 24px; }
}

@media print{
  .hdr,.mnav,.burger,.lang{ display:none !important; }
  body{ background:#fff; }
  .reveal{ opacity:1; transform:none; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  .reveal{ opacity:1; transform:none; }
  html{ scroll-behavior:auto; }
}