/* ============================================================
   元气参 · YUANQI GINSENG
   Design system: 东方草本 × 现代实验室
   ink green / bone paper / ginseng brass
   ============================================================ */

:root{
  --ink:#0C201A;
  --ink-deep:#07140F;
  --ink-soft:#0F2921;
  --paper:#F4EFE3;
  --paper-2:#EBE3D3;
  --brass:#B4864F;
  --brass-lt:#D9B57E;
  --jade:#6C8B72;
  --muted:#5C6660;
  --line:rgba(12,32,26,.14);
  --line-2:rgba(12,32,26,.08);
  --line-dark:rgba(232,225,209,.16);

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --latin:"Cormorant Garamond","Times New Roman",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;

  --ease:cubic-bezier(.16,1,.3,1);
  --head-h:86px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:300;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,blockquote,p,dl,dd,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
::selection{background:var(--brass);color:var(--paper);}
.nb{white-space:nowrap;}

.wrap{width:min(1340px,100% - clamp(48px,7vw,150px));margin-inline:auto;}
.grain{
  position:fixed;inset:0;z-index:900;pointer-events:none;
  opacity:.055;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)'/%3E%3C/svg%3E");
}
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:1000;background:transparent;}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--jade),var(--brass-lt));transform-origin:0 50%;}

/* ================= HEADER ================= */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--head-h);
  display:flex;align-items:center;justify-content:space-between;
  padding-inline:clamp(24px,4vw,52px);
  color:var(--paper);
  transition:height .45s var(--ease),background .45s var(--ease),color .45s var(--ease),border-color .45s var(--ease);
  border-bottom:1px solid transparent;
}
.site-head.is-stuck{
  height:68px;
  background:rgba(244,239,227,.88);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  backdrop-filter:blur(14px) saturate(1.2);
  color:var(--ink);
  border-bottom-color:var(--line);
}
.brand{display:flex;align-items:center;gap:12px;position:relative;z-index:101;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  font-family:var(--serif);font-weight:600;font-size:19px;
  background:var(--brass);color:#12100B;
  border-radius:1px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:var(--serif);font-weight:600;font-size:19px;letter-spacing:.14em;}
.brand-text i{font-family:var(--latin);font-style:normal;font-size:9.5px;letter-spacing:.22em;opacity:.6;margin-top:4px;}

.nav{display:flex;align-items:center;gap:clamp(16px,2.2vw,34px);}
.nav a{position:relative;display:flex;align-items:baseline;gap:5px;font-size:13.5px;letter-spacing:.08em;padding:6px 0;}
.nav a em{font-family:var(--latin);font-style:normal;font-size:9px;opacity:.42;letter-spacing:.05em;transition:opacity .3s;}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:100% 50%;
  transition:transform .5s var(--ease);
}
.nav a:hover::after{transform:scaleX(1);transform-origin:0 50%;}
.nav a:hover em{opacity:1;}
.nav a.is-active{color:var(--brass);}
.nav a.is-active::after{transform:scaleX(1);transform-origin:0 50%;}
.site-head.is-stuck .nav a.is-active{color:var(--brass);}
.nav-cta{
  border:1px solid currentColor;border-radius:2px;
  padding:9px 18px !important;font-size:12.5px !important;
  transition:background .45s var(--ease),color .45s var(--ease),border-color .45s;
}
.nav-cta::after{display:none;}
.nav-cta:hover{background:var(--brass);border-color:var(--brass);color:#12100B;}

.burger{display:none;width:44px;height:30px;background:none;border:0;position:relative;cursor:pointer;}
.burger span{position:absolute;left:6px;right:6px;height:1px;background:currentColor;transition:transform .4s var(--ease),opacity .3s;}
.burger span:first-child{top:11px;}
.burger span:last-child{bottom:11px;}
body.menu-open{overflow:hidden;}
body.menu-open .burger span:first-child{transform:translateY(4px) rotate(45deg);}
body.menu-open .burger span:last-child{transform:translateY(-4px) rotate(-45deg);}

/* ================= HERO ================= */
.hero{
  position:relative;
  background:
    radial-gradient(120% 90% at 78% 10%,rgba(108,139,114,.22),transparent 55%),
    radial-gradient(90% 70% at 12% 92%,rgba(180,134,79,.16),transparent 60%),
    var(--ink);
  color:var(--paper);
  padding-top:calc(var(--head-h) + clamp(48px,7vh,90px));
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 55%,rgba(7,20,15,.55) 100%);
}
.hero-grid{
  width:min(1340px,100% - clamp(48px,7vw,150px));margin-inline:auto;
  display:grid;grid-template-columns:1.06fr .94fr;align-items:center;
  gap:clamp(24px,4vw,60px);
  min-height:calc(100vh - var(--head-h) - 120px);
  padding-bottom:clamp(40px,6vh,80px);
  position:relative;z-index:2;
}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.2em;color:var(--brass-lt);
  text-transform:uppercase;
}
.eyebrow .dot{width:5px;height:5px;border-radius:50%;background:var(--brass-lt);box-shadow:0 0 0 4px rgba(217,181,126,.16);}
.hero h1{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(48px,7.6vw,112px);
  line-height:1.06;letter-spacing:.02em;
  margin:clamp(20px,3vh,34px) 0 0;
}
.hero h1 .em{position:relative;display:inline-block;color:var(--brass-lt);}
.hero h1 .underline{
  position:absolute;left:2%;bottom:-.08em;width:96%;height:.16em;
  overflow:visible;
}
.hero h1 .underline path{
  fill:none;stroke:var(--brass);stroke-width:2;stroke-linecap:round;
  stroke-dasharray:1;stroke-dashoffset:1;
  animation:draw 1.8s 1s var(--ease) forwards;
  opacity:.7;
}
@keyframes draw{to{stroke-dashoffset:0;}}
.hero-sub{
  max-width:32em;text-wrap:pretty;margin-top:clamp(22px,3vh,32px);
  font-size:clamp(14.5px,1.05vw,16px);
  line-height:2.05;color:rgba(244,239,227,.68);
}
.hero-actions{display:flex;gap:14px;margin-top:clamp(26px,3.5vh,38px);flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;font-size:13px;letter-spacing:.12em;
  border:1px solid transparent;border-radius:2px;position:relative;
  transition:background .45s var(--ease),color .45s var(--ease),border-color .45s var(--ease),transform .45s var(--ease);
}
.btn i{font-style:normal;font-size:14px;transition:transform .45s var(--ease);}
.btn:hover i{transform:translateX(5px);}
.btn-solid{background:var(--brass);color:#100E09;}
.btn-solid:hover{background:var(--brass-lt);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(244,239,227,.28);color:var(--paper);}
.btn-ghost:hover{border-color:var(--paper);background:rgba(244,239,227,.06);transform:translateY(-2px);}
.btn.wide{width:100%;justify-content:center;background:var(--ink);color:var(--paper);}
.btn.wide:hover{background:var(--brass);color:#100E09;}

.hero-meta{
  display:flex;flex-wrap:wrap;gap:clamp(20px,3.4vw,52px);
  margin-top:clamp(36px,6vh,64px);padding-top:22px;
  border-top:1px solid rgba(244,239,227,.13);
}
.hero-meta div{display:flex;flex-direction:column;gap:2px;}
.hero-meta b{font-family:var(--serif);font-weight:400;font-size:14px;letter-spacing:.06em;color:rgba(244,239,227,.92);}
.hero-meta span{font-size:10.5px;letter-spacing:.16em;color:rgba(244,239,227,.4);}

/* hero visual */
.hero-visual{position:relative;display:grid;place-items:center;}
.glow{
  position:absolute;width:78%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(217,181,126,.22),rgba(108,139,114,.07) 45%,transparent 70%);
  filter:blur(6px);
}
.cell{width:min(100%,560px);height:auto;overflow:visible;}
.ring-a{transform-origin:280px 280px;animation:spin 90s linear infinite;}
.ring-b{transform-origin:280px 280px;animation:spin 140s linear infinite reverse;}
@keyframes spin{to{transform:rotate(360deg);}}
.filaments path{
  stroke-dasharray:1;stroke-dashoffset:1;
  animation:draw 2.4s var(--ease) forwards;
}
.filaments path:nth-child(1){animation-delay:.5s;}
.filaments path:nth-child(2){animation-delay:.65s;}
.filaments path:nth-child(3){animation-delay:.8s;}
.filaments path:nth-child(4){animation-delay:.95s;}
.filaments path:nth-child(5){animation-delay:1.1s;}
.filaments path:nth-child(6){animation-delay:1.25s;}
.spore{animation:float 7s ease-in-out infinite;}
.spore.s2{animation-duration:9s;animation-delay:-2s;}
.spore.s3{animation-duration:8s;animation-delay:-4s;}
@keyframes float{
  0%,100%{transform:translate(0,0);}
  50%{transform:translate(6px,-12px);}
}
.specimen{
  position:absolute;bottom:2%;left:50%;transform:translateX(-50%);
  font-family:var(--latin);font-size:10px;letter-spacing:.32em;
  color:rgba(244,239,227,.45);white-space:nowrap;
}

/* marquee */
.marquee{
  position:relative;z-index:2;
  border-top:1px solid rgba(244,239,227,.13);
  border-bottom:1px solid rgba(244,239,227,.13);
  overflow:hidden;padding:16px 0;
  background:rgba(7,20,15,.35);
}
.marquee-track{
  display:flex;align-items:center;gap:26px;width:max-content;
  animation:marquee 46s linear infinite;
  font-size:12px;letter-spacing:.2em;color:rgba(244,239,227,.55);white-space:nowrap;
}
.marquee-track i{font-style:normal;color:var(--brass);opacity:.7;}
@keyframes marquee{to{transform:translateX(-50%);}}

/* ================= SECTION BASE ================= */
.section{padding:clamp(72px,11vh,140px) 0;position:relative;}
section[id],footer{scroll-margin-top:74px;}
.sec-head{display:flex;align-items:center;gap:16px;margin-bottom:clamp(34px,6vh,64px);}
.sec-head .idx{font-family:var(--latin);font-size:13px;letter-spacing:.18em;color:var(--brass);}
.sec-head .label{
  font-family:var(--serif);font-size:13px;font-weight:400;
  letter-spacing:.26em;white-space:nowrap;
}
.sec-head .rule{flex:1;height:1px;background:var(--line);}
.sec-head .latin{font-family:var(--latin);font-size:11px;letter-spacing:.34em;color:var(--muted);opacity:.7;}
.sec-head.light .rule{background:var(--line-dark);}
.sec-head.light .latin{color:rgba(244,239,227,.45);}

/* ================= ABOUT ================= */
.about{background:var(--paper);}
.about-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(30px,6vw,110px);align-items:start;}
.about-lead h3{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(26px,3.1vw,40px);line-height:1.55;letter-spacing:.02em;
}
.about-facts{margin-top:clamp(32px,5vh,52px);border-top:1px solid var(--line);}
.about-facts dl > div{display:flex;gap:18px;padding:13px 0;border-bottom:1px solid var(--line-2);}
.about-facts dt{flex:0 0 52px;font-size:11px;letter-spacing:.18em;color:var(--brass);padding-top:4px;}
.about-facts dd{font-size:13.5px;letter-spacing:.03em;color:var(--ink);opacity:.8;}
.about-text p{font-size:15px;line-height:2.1;color:#2A3A33;margin-bottom:1.15em;}
.about-text p.drop::first-letter{
  font-family:var(--serif);font-size:3.1em;line-height:.9;float:left;
  margin:.06em .12em 0 0;color:var(--brass);
}
.about-text em{font-style:normal;color:var(--ink);border-bottom:1px solid var(--brass);padding-bottom:1px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:10px;margin-top:12px;
  font-size:12.5px;letter-spacing:.14em;color:var(--ink);
  border-bottom:1px solid var(--line);padding-bottom:8px;
  transition:color .4s,border-color .4s;
}
.link-arrow span{transition:transform .45s var(--ease);}
.link-arrow:hover{color:var(--brass);border-color:var(--brass);}
.link-arrow:hover span{transform:translateX(6px);}

/* ================= TECH ================= */
.tech{background:var(--paper-2);}
.tech-intro{display:grid;grid-template-columns:.86fr 1.14fr;gap:clamp(24px,5vw,90px);align-items:end;margin-bottom:clamp(40px,7vh,72px);}
.tech-intro h3{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(24px,2.9vw,38px);line-height:1.5;
}
.tech-intro p{font-size:15px;line-height:2.05;color:#33443C;max-width:34em;}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.step{
  position:relative;display:flex;flex-direction:column;
  padding:34px clamp(18px,2.4vw,36px) 30px;
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
  transition:background .55s var(--ease);
}
.step:last-child{border-right:1px solid var(--line);}
.step::before{
  content:"";position:absolute;top:-1px;left:0;width:0;height:1px;
  background:var(--brass);transition:width .7s var(--ease);
}
.step:hover{background:rgba(244,239,227,.5);}
.step:hover::before{width:100%;}
.step-num{
  display:block;font-family:var(--latin);font-size:clamp(44px,5vw,74px);
  line-height:1;color:transparent;-webkit-text-stroke:1px rgba(12,32,26,.42);
  margin-bottom:22px;transition:color .6s var(--ease),-webkit-text-stroke-color .6s;
}
.step:hover .step-num{color:rgba(180,134,79,.18);-webkit-text-stroke-color:var(--brass);}
.step h4{
  font-family:var(--serif);font-size:21px;font-weight:600;letter-spacing:.06em;
  display:flex;flex-direction:column;gap:4px;margin-bottom:14px;
}
.step h4 em{
  font-family:var(--latin);font-style:normal;font-size:10px;font-weight:400;
  letter-spacing:.32em;color:var(--brass);opacity:.85;
}
.step p{font-size:13.8px;line-height:2;color:#3C4C44;margin-bottom:20px;}
.step .tick{
  display:block;margin-top:auto;font-family:var(--latin);
  font-size:9.5px;letter-spacing:.3em;color:var(--muted);opacity:.55;
}
.tech-note{
  margin-top:clamp(34px,5vh,54px);padding:22px clamp(20px,2.4vw,34px) 24px;
  border-left:2px solid var(--brass);background:rgba(244,239,227,.55);
  display:grid;grid-template-columns:88px 1.05fr .95fr;gap:28px;align-items:start;
}
.tech-note .nlabel{
  font-family:var(--latin);font-size:9.5px;letter-spacing:.34em;
  color:var(--brass);padding-top:7px;
}
.tech-note p{font-size:14px;line-height:1.95;color:#33443C;}
.tech-note .nt-b{border-left:1px solid var(--line);padding-left:28px;}
.tech-note .c{font-family:var(--latin);letter-spacing:.2em;color:var(--brass);font-size:13px;}
.tech-note b{font-weight:400;color:var(--ink);}

/* ================= DATA (dark) ================= */
.data{
  background:
    radial-gradient(80% 60% at 88% 0%,rgba(108,139,114,.16),transparent 60%),
    var(--ink);
  color:var(--paper);
}
.data .sec-head .rule{background:var(--line-dark);}
.data .sec-head .label{color:var(--paper);}
.data .sec-head .latin{color:rgba(244,239,227,.45);}
.data-top{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,80px);align-items:end;margin-bottom:clamp(40px,6vh,66px);}
.data-top h3{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(26px,3.3vw,44px);line-height:1.5;
}
.data-top h3 .em2{color:var(--brass-lt);}
.data-top p{font-size:14.8px;line-height:2.05;color:rgba(244,239,227,.6);max-width:32em;}
.data-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:1px;background:var(--line-dark);
  border:1px solid var(--line-dark);
}
.dcard{
  background:#112A23;padding:clamp(26px,3vw,40px);
  position:relative;transition:background .55s var(--ease);
}
.dcard:hover{background:#123028;}
.dnum{
  display:flex;align-items:center;gap:10px;
  font-family:var(--latin);font-size:12px;letter-spacing:.24em;
  color:var(--brass-lt);margin-bottom:clamp(20px,3.4vh,34px);
}
.dnum::after{content:"";width:26px;height:1px;background:rgba(217,181,126,.45);}
.dcard h4{
  font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.1em;
  margin-bottom:12px;
}
.dcard p{font-size:13.6px;line-height:2;color:rgba(244,239,227,.64);}
.pipeline{
  display:flex;align-items:center;gap:clamp(16px,3vw,40px);flex-wrap:wrap;
  margin-top:clamp(34px,5vh,52px);padding-top:22px;border-top:1px solid var(--line-dark);
}
.pipe-label{font-family:var(--latin);font-size:10px;letter-spacing:.32em;color:rgba(244,239,227,.4);}
.pipeline ol{display:flex;align-items:center;gap:clamp(10px,2vw,26px);flex-wrap:wrap;}
.pipeline li{
  font-family:var(--serif);font-size:14px;letter-spacing:.16em;color:rgba(244,239,227,.8);
  display:flex;align-items:center;gap:clamp(10px,2vw,26px);
}
.pipeline li:not(:last-child)::after{content:"→";color:var(--brass);font-size:12px;letter-spacing:0;}

/* ================= DOMAINS ================= */
.domains{background:var(--paper);}
.domain-list{border-top:1px solid var(--line);}
.domain{
  position:relative;display:grid;
  grid-template-columns:64px minmax(0,.9fr) minmax(0,1fr) 130px;
  align-items:center;gap:clamp(12px,2vw,28px);
  padding:clamp(26px,4vh,40px) clamp(6px,1.6vw,22px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  transition:color .5s var(--ease),padding-left .5s var(--ease);
}
.domain::before{
  content:"";position:absolute;inset:0;background:var(--ink);
  transform:scaleY(0);transform-origin:50% 100%;
  transition:transform .65s var(--ease);z-index:0;
}
.domain:hover::before{transform:scaleY(1);}
.domain:hover{color:var(--paper);padding-left:clamp(14px,2.4vw,32px);}
.domain > *{position:relative;z-index:1;}
.d-idx{font-family:var(--latin);font-size:12px;letter-spacing:.2em;color:var(--brass);}
.domain h3{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(26px,3.4vw,42px);letter-spacing:.08em;
  display:flex;align-items:baseline;gap:14px;
}
.domain h3 em{
  font-family:var(--latin);font-style:normal;font-size:11px;letter-spacing:.3em;
  color:var(--brass);opacity:.9;
}
.domain p{font-size:13px;letter-spacing:.1em;color:var(--muted);transition:color .5s;}
.domain:hover p{color:rgba(244,239,227,.6);}
.d-more{
  justify-self:end;display:flex;align-items:center;gap:8px;
  font-size:11.5px;letter-spacing:.14em;color:var(--muted);
  transition:color .5s;
}
.d-more span{transition:transform .5s var(--ease);}
.domain:hover .d-more{color:var(--brass-lt);}
.domain:hover .d-more span{transform:translate(4px,-4px);}
.domains-foot{
  margin-top:clamp(24px,4vh,38px);font-size:14px;color:#33443C;letter-spacing:.03em;
}
.domains-foot b{font-weight:400;color:var(--ink);}

/* ================= VISION ================= */
.vision{
  position:relative;overflow:hidden;
  padding:clamp(76px,12vh,150px) 0;
  background:var(--ink-deep);color:var(--paper);
}
.vision-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 55% at 18% 12%,rgba(180,134,79,.18),transparent 65%),
    radial-gradient(50% 50% at 86% 82%,rgba(108,139,114,.2),transparent 65%);
}
.vision .wrap{position:relative;z-index:1;}
.vision-grid{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:clamp(30px,5vw,90px);align-items:end;
}
.quote{
  position:relative;
  font-family:var(--serif);font-weight:300;
  font-size:clamp(28px,4.6vw,62px);
  line-height:1.62;letter-spacing:.05em;
  padding-top:clamp(8px,2vh,18px);
  max-width:20ch;
}
.quote .gold{color:var(--brass-lt);}
.quote .qmark{
  position:absolute;left:0;top:-.62em;
  font-size:1.7em;color:rgba(217,181,126,.26);line-height:1;font-family:var(--latin);
}
.quote cite{
  display:block;margin-top:clamp(22px,3.5vh,34px);
  font-family:var(--sans);font-style:normal;
  font-size:11px;letter-spacing:.34em;color:rgba(244,239,227,.42);
}
.vision-side{border-left:1px solid var(--line-dark);padding-left:clamp(20px,3vw,40px);padding-bottom:6px;}
.vision-text{
  font-size:14.4px;line-height:2.1;color:rgba(244,239,227,.6);
}
.road{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(20px,3vw,44px);
  margin-top:clamp(48px,8vh,86px);
  border-top:1px solid var(--line-dark);
}
.road-item{position:relative;padding-top:30px;}
.road-item::before{
  content:"";position:absolute;top:-5px;left:0;width:7px;height:7px;
  border:1px solid var(--brass);background:var(--ink-deep);transform:rotate(45deg);
}
.rn{font-family:var(--latin);font-size:11px;letter-spacing:.28em;color:var(--brass-lt);}
.road-item h4{
  font-family:var(--serif);font-weight:400;font-size:20px;
  letter-spacing:.08em;margin:10px 0 12px;
}
.road-item p{font-size:13.2px;line-height:2;color:rgba(244,239,227,.55);}

/* ================= CONTACT ================= */
.contact{background:var(--paper);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,6vw,100px);align-items:start;}
.contact-copy h3{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(26px,3.3vw,42px);line-height:1.5;
}
.contact-copy > p{margin-top:20px;font-size:14.5px;line-height:2.05;color:#33443C;max-width:26em;}
.contact-info{margin-top:clamp(28px,4vh,42px);border-top:1px solid var(--line);}
.contact-info > div{display:flex;gap:20px;padding:14px 0;border-bottom:1px solid var(--line-2);}
.contact-info dt{flex:0 0 66px;font-size:11px;letter-spacing:.16em;color:var(--brass);padding-top:3px;}
.contact-info dd{font-size:13.5px;color:var(--ink);opacity:.82;}

.contact-form{display:grid;gap:18px;}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.contact-form label{display:flex;flex-direction:column;gap:7px;}
.contact-form label > span{
  font-size:10.5px;letter-spacing:.2em;color:var(--brass);
}
.contact-form input,.contact-form select,.contact-form textarea{
  background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:9px 2px;font-size:14px;letter-spacing:.02em;
  border-radius:0;outline:none;
  transition:border-color .4s;
}
.contact-form select{
  -webkit-appearance:none;appearance:none;cursor:pointer;padding-right:24px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23B4864F' stroke-width='1'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 2px center;
}
.contact-form textarea{resize:vertical;min-height:80px;}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(12,32,26,.3);}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-bottom-color:var(--brass);}
.contact-form .btn{margin-top:8px;}
.form-note{font-size:11px;letter-spacing:.06em;color:var(--muted);opacity:.7;text-align:center;}
.form-note.ok{color:var(--brass);opacity:1;}

/* ================= FOOTER ================= */
.site-foot{background:var(--ink-deep);color:rgba(244,239,227,.7);padding:clamp(40px,6vh,60px) 0 clamp(24px,4vh,34px);}
.foot-inner{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:start;}
.foot-brand{display:flex;align-items:center;gap:14px;}
.foot-brand strong{display:block;font-family:var(--serif);font-weight:400;font-size:15px;letter-spacing:.1em;color:var(--paper);}
.foot-brand i{display:block;font-family:var(--latin);font-style:normal;font-size:9px;letter-spacing:.2em;margin-top:4px;color:rgba(244,239,227,.35);}
.foot-nav{display:flex;gap:clamp(14px,2vw,26px);flex-wrap:wrap;font-size:12px;letter-spacing:.1em;}
.foot-nav a{transition:color .4s;}
.foot-nav .to-top{color:var(--brass-lt);opacity:.85;}
.foot-nav a:hover{color:var(--brass-lt);}
.copyright{
  grid-column:1 / -1;margin-top:clamp(20px,3vh,30px);padding-top:18px;
  border-top:1px solid rgba(244,239,227,.1);
  font-size:11px;letter-spacing:.14em;color:rgba(244,239,227,.34);
}
.copyright a{transition:color .35s;}
.copyright a:hover{color:var(--brass-lt);}
.copyright .sep{margin:0 9px;opacity:.35;}

/* ================= ANIMATION ================= */
.anim{opacity:0;transform:translateY(22px);animation:fadeUp 1.1s var(--ease) forwards;animation-delay:var(--d,0s);}
@keyframes fadeUp{to{opacity:1;transform:none;}}
.reveal{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease),transform 1s var(--ease);transition-delay:var(--d,0s);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001s !important;animation-delay:0s !important;transition-duration:.001s !important;}
  .reveal,.anim{opacity:1;transform:none;}
}

/* ================= RESPONSIVE ================= */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;min-height:auto;padding-top:10px;}
  .hero-visual{width:min(72%,380px);margin:clamp(20px,3vh,34px) auto 0;opacity:.92;}
  .hero h1{font-size:clamp(44px,9vw,80px);}
  .hero-sub{max-width:34em;}
  .about-grid,.tech-intro,.data-top,.contact-grid{grid-template-columns:1fr;gap:clamp(26px,4vh,40px);}
  .steps{grid-template-columns:1fr;}
  .step{border-right:1px solid var(--line);border-top:0;border-bottom:1px solid var(--line);}
  .step::before{width:100%;height:0;transition:height .6s var(--ease);}
  .step:hover::before{height:100%;width:1px;top:0;left:-1px;}
  .road{grid-template-columns:1fr;border-top:0;padding-top:0;gap:0;}
  .road-item{border-top:1px solid var(--line-dark);padding-top:26px;margin-top:26px;}
  .road-item:first-child{margin-top:0;}
  .vision-grid{grid-template-columns:1fr;align-items:start;}
  .vision-side{border-left:0;padding-left:0;margin-top:30px;border-top:1px solid var(--line-dark);padding-top:24px;}
  .tech-note{grid-template-columns:1fr;gap:10px;}
  .tech-note .nlabel{padding-top:0;}
  .tech-note .nt-b{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:12px;}
  .domain{grid-template-columns:40px 1fr auto;row-gap:8px;}
  .domain p{grid-column:2;}
  .d-more{grid-row:1;grid-column:3;}
}
@media (max-width:860px){
  .site-head.is-stuck{
    background:rgba(244,239,227,.97);
    -webkit-backdrop-filter:none;backdrop-filter:none;
  }
  .nav{
    position:fixed;inset:0;z-index:99;
    min-height:100vh;min-height:100dvh;
    flex-direction:column;align-items:flex-start;justify-content:center;
    gap:6px;padding:0 clamp(26px,8vw,60px);
    background:var(--ink);color:var(--paper);
    transform:translateY(-100%);transition:transform .7s var(--ease);
  }
  body.menu-open .nav{transform:none;}
  .nav a{font-size:22px;letter-spacing:.1em;padding:12px 0;border-bottom:1px solid rgba(244,239,227,.12);width:100%;}
  .nav a em{font-size:10px;opacity:.4;}
  .nav a.nav-cta{margin-top:22px;border-color:var(--brass);color:var(--brass-lt);width:auto;}
  .burger{display:block;z-index:100;}
  body.menu-open .burger{color:var(--paper);}
  body.menu-open .site-head{background:transparent;border-bottom-color:transparent;color:var(--paper);}
  .data-grid{grid-template-columns:1fr;}
  .foot-inner{grid-template-columns:1fr;}
  .quote{max-width:none;}
  .quote .qmark{left:-.3em;}
}
@media (max-width:620px){
  body{font-size:15px;}
  .about-text p.drop::first-letter{
    font-size:1em;float:none;margin:0;color:inherit;
  }
  .hero{padding-top:calc(var(--head-h) + 24px);}
  .hero-visual{width:min(86%,340px);}
  .hero-meta{gap:18px;margin-top:34px;padding-top:18px;}
  .hero-meta b{font-size:12.5px;}
  .f-row{grid-template-columns:1fr;}
  .domain{grid-template-columns:1fr auto;padding-inline:2px;}
  .d-idx{display:none;}
  .domain h3{font-size:26px;}
  .domain p{grid-column:1;}
  .d-more{font-size:10.5px;}
  .sec-head .latin{display:none;}
  .tech-note{padding:18px 18px;}
  .quote{font-size:clamp(25px,7.4vw,38px);}
  .brand-text i{display:none;}
}