:root{
  --paper:#F7F4EF;--paper-2:#EFEAE1;--ink:#14181A;--ink-2:#4A5155;--ink-3:#7C8388;
  --line:#DFD6C9;--line-2:#CFC4B4;--accent:#A85F34;--accent-soft:#C0764A;--green:#2E5A52;
  --white:#fff;--max:1180px;--pad:clamp(20px,4vw,40px);--sp:clamp(60px,8.5vw,112px);--r:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.eyebrow{display:flex;align-items:center;gap:14px;font-family:ui-serif,Georgia,"Times New Roman",serif;
  font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--line-2);flex:0 0 auto}
.eyebrow b{color:var(--accent);font-weight:600;font-family:inherit}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.02em;line-height:1.24}
.h2{font-size:clamp(25px,3.4vw,40px);margin:18px 0 0}
.h3{font-size:clamp(19px,2.1vw,25px);margin:14px 0 10px}
.lede{margin-top:18px;color:var(--ink-2);font-size:clamp(15px,1.2vw,17px);max-width:62ch}
.section{padding:var(--sp) 0}
.section--tight{padding:calc(var(--sp)*.62) 0}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:26px}
.sec-head .lede{max-width:46ch;margin-top:0}
.hair{height:1px;background:var(--line)}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:80;transition:background .35s var(--ease),box-shadow .35s}
.nav::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:transparent;transition:background .35s}
.nav.solid{background:rgba(247,244,239,.93);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px)}
.nav.solid::after{background:var(--line)}
.nav-in{max-width:var(--max);margin:0 auto;padding:0 var(--pad);height:68px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.02em;font-size:17px}
.brand small{display:block;font-size:9.5px;letter-spacing:.2em;color:var(--ink-3);font-weight:500;font-family:ui-serif,Georgia,serif;line-height:1.6}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:14px;color:var(--ink-2);position:relative;padding:4px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--accent);transition:right .3s var(--ease)}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--ink)}
.nav-links a:hover::after,.nav-links a[aria-current]::after{right:0}
.nav-cta{display:flex;align-items:center;gap:8px;background:var(--ink);color:#fff;padding:11px 18px;border-radius:var(--r);font-size:14px;font-weight:600;transition:.2s var(--ease)}
.nav-cta:hover{background:var(--accent);transform:translateY(-1px)}
.nav-tel{font-variant-numeric:tabular-nums;letter-spacing:.02em}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line-2);border-radius:var(--r)}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);position:relative;transition:.25s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--ink);transition:.25s}
.burger span::before{top:-6px}.burger span::after{top:6px}
.menu{position:fixed;inset:68px 0 auto 0;background:var(--paper);border-bottom:1px solid var(--line);z-index:79;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:.28s var(--ease)}
.menu.open{transform:none;opacity:1;pointer-events:auto}
.menu a{display:flex;justify-content:space-between;align-items:center;padding:17px var(--pad);border-bottom:1px solid var(--line);font-size:16px}
.menu a span{color:var(--ink-3);font-size:12px;font-family:ui-serif,Georgia,serif;letter-spacing:.16em}

/* hero */
.hero{padding:calc(68px + clamp(36px,5.5vw,72px)) 0 clamp(44px,6vw,72px);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:clamp(26px,4vw,58px);align-items:center}
.hero h1{font-size:clamp(31px,4.6vw,54px);line-height:1.18;letter-spacing:-.03em;margin:20px 0 0}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap;color:var(--accent)}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:.02em;height:.09em;background:currentColor;opacity:.2}
.hero .lede{font-size:clamp(15px,1.3vw,17px);max-width:33em}
.hero-acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:15px 26px;border-radius:var(--r);
  font-size:15px;font-weight:600;transition:.22s var(--ease);border:1px solid transparent}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 10px 26px -14px rgba(20,24,26,.7)}
.btn-primary:hover{background:var(--accent);transform:translateY(-2px);box-shadow:0 16px 32px -16px rgba(168,95,52,.55)}
.btn-ghost{border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(20,24,26,.03)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:40px;border-top:1px solid var(--line)}
.stat{padding:18px 12px 0 0}
.stat + .stat{padding-left:16px;border-left:1px solid var(--line)}
.stat b{display:block;font-size:clamp(21px,2.3vw,28px);letter-spacing:-.02em;line-height:1.2;font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-size:.55em;font-weight:600;color:var(--ink-3);margin-left:2px}
.stat span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:6px}
.hero-media{position:relative}
.frame{position:relative;background:var(--white);padding:9px;border:1px solid var(--line);border-radius:var(--r);
  box-shadow:0 30px 60px -40px rgba(20,24,26,.45)}
.frame img{width:100%;object-fit:cover;background:var(--paper-2)}
.frame figcaption{display:flex;justify-content:space-between;gap:10px;padding:11px 3px 1px;font-size:11.5px;color:var(--ink-3);letter-spacing:.03em}
.stamp{position:absolute;left:-12px;bottom:-20px;background:var(--ink);color:#fff;padding:14px 18px;border-radius:var(--r);
  box-shadow:0 18px 36px -22px rgba(0,0,0,.7)}
.stamp b{display:block;font-size:21px;line-height:1.1}
.stamp b i{font-style:normal;font-size:.52em;color:#C0764A}
.stamp span{display:block;font-size:11px;color:rgba(255,255,255,.62);margin-top:5px;letter-spacing:.05em}

/* rows (systems / brands) */
.rows{margin-top:clamp(28px,4vw,44px);border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:52px 1.05fr 2.2fr auto;gap:20px;align-items:baseline;
  padding:20px 0;border-bottom:1px solid var(--line);transition:.25s var(--ease)}
.row:hover{background:rgba(255,255,255,.55);padding-left:12px;padding-right:12px}
.row .no{font-family:ui-serif,Georgia,serif;font-size:11.5px;letter-spacing:.18em;color:var(--ink-3)}
.row h3{font-size:17px;letter-spacing:.01em}
.row h3 small{display:block;font-size:10.5px;font-weight:500;color:var(--ink-3);letter-spacing:.16em;
  font-family:ui-serif,Georgia,serif;text-transform:uppercase;margin-top:3px}
.row p{font-size:13.5px;color:var(--ink-2);line-height:1.65}
.tag{font-size:11.5px;color:var(--ink-3);border:1px solid var(--line-2);padding:4px 10px;border-radius:100px;white-space:nowrap}

/* proof */
.proof{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(24px,3.4vw,48px);margin-top:clamp(28px,4vw,44px)}
.proof-main{display:grid;gap:12px}
.proof-main figure{margin:0;position:relative;overflow:hidden;border-radius:var(--r);border:1px solid var(--line);background:var(--paper-2)}
.proof-main img{width:100%;object-fit:cover}
.proof-main .tall img{max-height:520px;object-position:center}
.proof-side{display:grid;gap:12px;align-content:start}
.pcard{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:0;overflow:hidden}
.pcard img{width:100%;aspect-ratio:16/9;object-fit:cover}
.pcard div{padding:14px 16px 16px}
.pcard b{display:block;font-size:14.5px}
.pcard span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px;line-height:1.6}
.proof-note{margin-top:16px;font-size:12.5px;color:var(--ink-3)}

/* cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:clamp(26px,3.4vw,40px)}
.case{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.case img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s var(--ease)}
.case:hover img{transform:scale(1.025)}
.case figcaption{padding:14px 15px 16px;background:var(--white)}
.case figcaption b{display:block;font-size:14.5px}
.case figcaption span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:3px}

/* faq */
.faq{margin-top:clamp(26px,3.4vw,40px);border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line)}
details summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:18px 0;font-size:15.5px;font-weight:600;letter-spacing:.01em}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";margin-left:auto;font-weight:400;font-size:19px;color:var(--accent);line-height:1;transition:.2s}
details[open] summary::after{content:"–"}
details summary:hover{color:var(--accent)}
details .ans{padding:0 0 20px;font-size:14px;color:var(--ink-2);line-height:1.78;max-width:70ch}
details .ans p + p{margin-top:10px}
.qno{font-family:ui-serif,Georgia,serif;font-size:11.5px;letter-spacing:.14em;color:var(--ink-3);padding-top:4px;flex:0 0 auto}

/* process */
.steps{display:grid;grid-template-columns:repeat(7,1fr);gap:0;margin-top:clamp(30px,4vw,46px);border-top:1px solid var(--line)}
.step{padding:20px 14px 0 0;position:relative}
.step::before{content:"";position:absolute;top:-3px;left:0;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.step b{display:block;font-family:ui-serif,Georgia,serif;font-size:11px;letter-spacing:.18em;color:var(--ink-3)}
.step h4{font-size:14.5px;margin:9px 0 5px}
.step p{font-size:12.5px;color:var(--ink-3);line-height:1.6}

/* about */
.about{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(26px,4vw,56px);align-items:center}
.about p{color:var(--ink-2);font-size:14.5px;margin-top:14px}
.about p b{color:var(--ink);font-weight:600}
.about img{width:100%;border-radius:var(--r);border:1px solid var(--line)}
.guards{display:grid;grid-template-columns:repeat(2,1fr);margin-top:26px;border-top:1px solid var(--line)}
.guard{padding:16px 18px 16px 0;border-bottom:1px solid var(--line)}
.guard:nth-child(even){padding-left:18px;border-left:1px solid var(--line)}
.guard b{font-size:14px;display:block}
.guard span{font-size:12.5px;color:var(--ink-3);display:block;margin-top:4px}

/* contact */
.contact{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,118,74,.16),transparent 66%)}
.contact .eyebrow{color:rgba(255,255,255,.5)}
.contact .eyebrow::before{background:rgba(255,255,255,.3)}
.contact .h2{color:#fff}
.contact .lede{color:rgba(255,255,255,.66)}
.c-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,68px);margin-top:clamp(30px,4vw,48px);position:relative;z-index:1}
.c-tel{font-size:clamp(27px,3.4vw,38px);font-weight:700;letter-spacing:-.01em;font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:12px}
.c-tel:hover{color:var(--accent-soft)}
.c-rows{margin-top:22px}
.c-row{display:grid;grid-template-columns:70px 1fr;gap:14px;padding:13px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:14px;color:rgba(255,255,255,.78)}
.c-row b{color:rgba(255,255,255,.45);font-weight:500;font-size:12.5px;letter-spacing:.08em;padding-top:2px}
.form{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:clamp(20px,2.4vw,28px)}
.form h3{font-size:16px;color:#fff;margin-bottom:4px}
.form p{font-size:12.5px;color:rgba(255,255,255,.5);margin-bottom:16px;line-height:1.6}
.field{margin-bottom:12px}
.field label{display:block;font-size:11.5px;letter-spacing:.1em;color:rgba(255,255,255,.45);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r);color:#fff;padding:12px 13px;font-size:14px;font-family:inherit;transition:.2s}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.32)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent-soft);background:rgba(255,255,255,.08)}
.field select option{color:#14181A}
.form .btn-primary{margin-top:6px;background:var(--accent);width:100%}
.form .btn-primary:hover{background:var(--accent-soft)}
.form small{display:block;margin-top:10px;font-size:11px;color:rgba(255,255,255,.38);line-height:1.6}
.done{display:none;margin-top:14px;font-size:13px;color:#B8D8C8;line-height:1.65}
.done.show{display:block}

/* footer */
.foot{padding:32px 0;background:var(--paper)}
.foot-in{display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
.foot-links{display:flex;gap:18px}
.foot-links a:hover{color:var(--ink)}

/* mobile bar */
.mbar{position:fixed;inset:auto 0 0 0;z-index:82;display:none;background:rgba(20,24,26,.96);
  backdrop-filter:blur(12px);border-top:1px solid rgba(255,255,255,.1)}
.mbar a{flex:1;text-align:center;padding:14px 8px;font-size:14px;font-weight:600;color:#fff;
  display:flex;align-items:center;justify-content:center;gap:8px}
.mbar a + a{border-left:1px solid rgba(255,255,255,.12);color:#E8C4A8}

/* reveal */
.rv{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* qa page */
.qa-hero{padding:calc(68px + clamp(28px,4vw,52px)) 0 clamp(10px,2vw,18px)}
.qa-layout{display:grid;grid-template-columns:220px 1fr;gap:clamp(26px,4vw,60px);padding-bottom:var(--sp)}
.qa-nav{position:sticky;top:96px;align-self:start;border-left:1px solid var(--line);padding-left:16px}
.qa-nav b{display:block;font-size:11px;letter-spacing:.2em;color:var(--ink-3);font-family:ui-serif,Georgia,serif;
  text-transform:uppercase;margin-bottom:12px}
.qa-nav a{display:block;font-size:13.5px;color:var(--ink-2);padding:6px 0;transition:.2s}
.qa-nav a:hover{color:var(--accent);padding-left:4px}
.qa-group{margin-bottom:clamp(34px,4vw,52px);scroll-margin-top:96px}
.qa-group > h2{font-size:clamp(19px,2.2vw,24px);margin:0 0 4px}
.qa-group > .sub{font-size:13px;color:var(--ink-3);margin-bottom:14px}
.qa-group .faq{margin-top:16px}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{order:2}
  .stamp{left:auto;right:10px;bottom:-16px}
  .row{grid-template-columns:40px 1fr auto;gap:10px 14px}
  .row p{grid-column:1/-1;padding-left:54px}
  .proof{grid-template-columns:1fr}
  .proof-side{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(4,1fr);row-gap:20px}
  .about{grid-template-columns:1fr}
  .qa-layout{grid-template-columns:1fr}
  .qa-nav{position:static;border-left:0;border-top:1px solid var(--line);padding:14px 0 0;display:flex;flex-wrap:wrap;gap:6px 16px}
  .qa-nav b{width:100%;margin-bottom:6px}
}
@media (max-width:820px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:flex}
  .c-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){padding-left:0;border-left:none}
  .stat:nth-child(3),.stat:nth-child(4){margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
  .mbar{display:flex}
  body{padding-bottom:52px}
}
@media (max-width:560px){
  .proof-side{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .guards{grid-template-columns:1fr}
  .guard:nth-child(even){padding-left:0;border-left:none}
  .row{padding:16px 0}
  .row p{padding-left:0}
  .frame{padding:7px}
  .stamp{padding:11px 14px}
}