:root{
  --bg:#f7f8fa;
  --white:#fff;
  --ink:#111318;
  --ink-2:#30343b;
  --muted:#6d7480;
  --line:#e6e9ee;
  --blue:#7cb7ff;
  --blue-2:#dceeff;
  --dark:#0e1116;
  --radius:22px;
  --shadow:0 24px 70px rgba(17,19,24,.10);
  --shadow-soft:0 14px 42px rgba(17,19,24,.07);
  --max:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:96px}
body{
  font-family:"Inter","Noto Sans JP",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.85;
  letter-spacing:.02em;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
.page{
  width:min(1440px,calc(100% - 48px));
  margin:24px auto 48px;
  background:var(--white);
  border-radius:26px;
  overflow:visible;
  box-shadow:0 30px 100px rgba(0,0,0,.12);
  position:relative;
}
.container{width:min(var(--max),calc(100% - 96px));margin:0 auto}
.section{padding:112px 0}
.eyebrow{
  display:block;
  font-size:12px;
  letter-spacing:.22em;
  font-weight:800;
  color:#8b96a7;
  margin-bottom:18px;
  text-transform:uppercase;
}
.section-title{
  font-size:42px;
  line-height:1.35;
  letter-spacing:-.04em;
  font-weight:900;
}
.section-lead{
  margin-top:18px;
  color:var(--muted);
  max-width:680px;
  font-size:15px;
}

/* header */
.header{
  position:sticky;
  top:0;
  z-index:100;
  height:82px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(20px);
  border-radius:26px 26px 0 0;
  border-bottom:1px solid rgba(230,233,238,.72);
}
.nav{
  width:min(1320px,calc(100% - 64px));
  height:82px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  position:relative;
}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{width:58px;height:auto}
.brand-text strong{display:block;font-size:20px;font-weight:900;letter-spacing:-.04em;line-height:1.1}
.brand-text span{display:block;font-size:10px;font-weight:700;letter-spacing:.24em;color:#555b64;line-height:1.2;margin-top:4px}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:12px;font-weight:800;letter-spacing:.15em;color:#161a20;transition:.2s}
.nav-links a:hover{color:#5e9be9}
.nav-cta{
  display:flex;align-items:center;gap:12px;
  padding:14px 22px;
  border-radius:999px;
  background:var(--dark);
  color:#fff!important;
  box-shadow:0 12px 28px rgba(0,0,0,.18);
}
.nav-cta::after{content:"→";font-size:16px;line-height:1}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:#111318;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  box-shadow:0 10px 24px rgba(17,19,24,.08);
}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:999px;
  background:currentColor;
  transition:.2s;
}
.nav.is-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.is-open .menu-toggle span:nth-child(2){opacity:0}
.nav.is-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{
  min-height:760px;
  position:relative;
  display:grid;
  align-items:center;
  overflow:hidden;
  background:
    radial-gradient(circle at 82% 28%, rgba(124,183,255,.18), transparent 30%),
    linear-gradient(180deg,#fff 0%,#f8fbff 56%,#fff 100%);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(70,130,200,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(70,130,200,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,transparent 0%,#000 20%,#000 70%,transparent 100%);
}
.hero::after{
  content:"";
  position:absolute;
  left:-8%;right:-8%;bottom:-22%;height:58%;
  background:
    radial-gradient(ellipse at center, rgba(123,180,235,.25) 0%, rgba(123,180,235,.10) 38%, transparent 70%);
  filter:blur(8px);
  transform:perspective(900px) rotateX(58deg);
}
.network{
  position:absolute;inset:0;opacity:.9;pointer-events:none;
  background-image:
    radial-gradient(circle at 18% 56%, rgba(99,152,221,.36) 0 2px,transparent 3px),
    radial-gradient(circle at 32% 50%, rgba(99,152,221,.30) 0 2px,transparent 3px),
    radial-gradient(circle at 48% 62%, rgba(99,152,221,.34) 0 2px,transparent 3px),
    radial-gradient(circle at 63% 48%, rgba(99,152,221,.34) 0 2px,transparent 3px),
    radial-gradient(circle at 78% 58%, rgba(99,152,221,.32) 0 2px,transparent 3px),
    linear-gradient(28deg,transparent 15%,rgba(110,163,225,.20) 15.1%,transparent 15.4%),
    linear-gradient(-18deg,transparent 28%,rgba(110,163,225,.18) 28.1%,transparent 28.4%),
    linear-gradient(14deg,transparent 44%,rgba(110,163,225,.16) 44.1%,transparent 44.4%);
  mask-image:radial-gradient(ellipse at 62% 50%,#000 0%,transparent 72%);
}
.hero-inner{
  width:min(1320px,calc(100% - 64px));
  margin:0 auto;
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:40px;
  align-items:center;
  padding:82px 0 116px;
}
.hero-copy{padding-left:48px}
.hero-copy h1{
  font-size:58px;
  line-height:1.22;
  letter-spacing:-.055em;
  font-weight:900;
  margin-bottom:22px;
}
.hero-copy p{
  color:#303844;
  font-size:16px;
  max-width:500px;
  line-height:2.05;
  margin-bottom:34px;
}
.hero-button{
  display:inline-flex;
  align-items:center;
  gap:16px;
  background:#111318;
  color:#fff;
  padding:15px 24px 15px 26px;
  border-radius:999px;
  font-size:13px;
  font-weight:800;
  box-shadow:0 16px 34px rgba(0,0,0,.2);
  transition:.25s;
}
.hero-button:hover{transform:translateY(-3px);box-shadow:0 22px 42px rgba(0,0,0,.24)}
.hero-button span{font-size:17px}
.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.hero-sub-link{font-size:13px;font-weight:800;color:#39414d;border-bottom:1px solid #b8c0cc;padding-bottom:3px;transition:.2s}
.hero-sub-link:hover{color:#111318;border-color:#111318}
.hero-visual{
  min-height:430px;
  position:relative;
  display:grid;
  place-items:center;
}
.hero-logo-card{
  width:560px;
  max-width:100%;
  aspect-ratio:1.45/1;
  display:grid;
  place-items:center;
  transform:translateY(10px);
  position:relative;
}
.hero-logo-card::before{
  content:"";
  position:absolute;
  width:86%;height:86%;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.9),transparent 68%);
  filter:blur(20px);
}
.hero-logo-card img{position:relative;width:92%;filter:drop-shadow(0 24px 45px rgba(0,0,0,.18))}
.scroll-label{
  position:absolute;
  left:48px;bottom:62px;
  writing-mode:vertical-rl;
  font-size:11px;
  letter-spacing:.18em;
  font-weight:800;
  color:#59616c;
  display:flex;
  align-items:center;
  gap:12px;
}
.scroll-label::before{content:"";width:1px;height:42px;background:#b8c0cc;display:block}

/* service */
.services{background:#fff;padding-top:96px}
.service-head{max-width:720px}
.service-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin-top:46px;
}
.service-card{
  min-height:210px;
  border:1px solid var(--line);
  border-radius:10px;
  padding:34px 24px 28px;
  background:#fff;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  transition:.25s;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-soft);border-color:#d9e7f7}
.icon{
  width:42px;height:42px;
  border:1px solid #cfd5dd;
  border-radius:50%;
  display:grid;place-items:center;
  margin-bottom:28px;
  font-size:20px;
}
.service-card h3{font-size:15px;font-weight:900;margin-bottom:10px;letter-spacing:-.02em}
.service-card p{font-size:12px;color:var(--muted);line-height:1.8}

/* works */
.works{padding-top:44px;background:#fff;scroll-margin-top:96px}
.section-row{display:flex;align-items:end;justify-content:space-between;gap:32px;margin-bottom:32px}
.text-link{font-size:13px;font-weight:800;border-bottom:1px solid #111;padding-bottom:4px}
.works-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px}
.work-card{
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-soft);
  transition:.25s;
}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.work-link{display:block;height:100%}
.work-link>img{width:100%;height:auto;display:block;background:#f1f5fa;border-bottom:1px solid var(--line)}
.work-body{padding:18px 20px 20px;color:#333}
.work-body small{display:block;font-size:10px;letter-spacing:.18em;font-weight:800;color:#8b96a7;margin-bottom:6px}
.work-body h3{font-size:17px;line-height:1.5;font-weight:900;letter-spacing:-.03em}
.work-meta{margin-top:8px;font-size:12px;font-weight:700;color:var(--muted)}
.work-card:hover .work-meta{color:#3a78c9}

/* concept */
.concept{background:linear-gradient(180deg,#fff,#f6f9fd)}
.concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.concept-panel{
  border-radius:28px;
  min-height:460px;
  background:
    radial-gradient(circle at 50% 45%,rgba(124,183,255,.28),transparent 28%),
    linear-gradient(145deg,#fff,#eef5fc);
  border:1px solid var(--line);
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  display:grid;place-items:center;
}
.concept-panel::before{
  content:"";position:absolute;inset:12%;
  border:1px solid rgba(100,150,210,.2);
  border-radius:50%;
  box-shadow:0 0 0 70px rgba(124,183,255,.05),0 0 0 140px rgba(124,183,255,.035);
}
.concept-panel img{width:64%;position:relative;filter:drop-shadow(0 18px 36px rgba(0,0,0,.18))}
.feature-list{margin-top:32px;display:grid;gap:14px}
.feature-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.feature-item b{font-size:15px;display:block;margin-bottom:4px}
.feature-item p{font-size:13px;color:var(--muted);line-height:1.8}
.check{width:26px;height:26px;border-radius:50%;background:#111;color:#fff;display:grid;place-items:center;flex:0 0 auto;font-size:13px}

/* team */
.team{background:#fff}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:42px}
.member-card{
  border:1px solid var(--line);
  border-radius:18px;
  padding:30px;
  min-height:330px;
  background:#fff;
  transition:.25s;
}
.member-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-soft)}
.member-photo{
  width:74px;height:74px;border-radius:50%;
  background:linear-gradient(145deg,#111,#3a414b);
  color:#fff;
  display:grid;place-items:center;
  font-size:24px;font-weight:900;
  margin-bottom:22px;
  overflow:hidden;
}
.member-photo img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.role{font-size:10px;color:#8b96a7;letter-spacing:.2em;font-weight:900;text-transform:uppercase}
.member-card h3{font-size:24px;font-weight:900;letter-spacing:-.04em;margin:4px 0 6px}
.affil{font-size:12px;color:var(--muted);margin-bottom:18px}
.bio{font-size:13px;color:#4b535f;line-height:1.95}

/* problem */
.problem{background:#f7f8fa}
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.problem-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow-soft);font-size:14px;color:#39414d;line-height:1.9}
.problem-card b{color:#111318}.problem-card::before{content:"?";display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#111318;color:#fff;font-weight:900;margin-bottom:16px}
.problem-message{margin-top:44px;text-align:center;font-size:28px;line-height:1.55;font-weight:900;letter-spacing:-.04em}

/* flow */
.flow{background:#fff}.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:38px}.flow-card{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff;box-shadow:var(--shadow-soft)}.flow-step{font-size:11px;letter-spacing:.18em;font-weight:900;color:#8b96a7}.flow-card h3{font-size:18px;margin:8px 0 8px;font-weight:900}.flow-card p{font-size:12px;color:#5f6874;line-height:1.8}

/* voice */
.voice{background:#f7f8fa}.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}.voice-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow-soft)}.voice-card p{font-size:13px;color:#3e4652;line-height:1.95}.voice-card p::before{content:"“";font-size:42px;line-height:0;color:#a7b5c8;font-family:serif;vertical-align:-14px;margin-right:4px}.voice-name{display:block;margin-top:18px;font-size:12px;color:#7a838f;font-weight:800}

/* faq */
.faq{background:#fff}
.faq-list{margin-top:38px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);padding:24px 0}
.faq-q{font-size:16px;font-weight:900;letter-spacing:-.02em}
.faq-q::before{content:"Q.";color:#8b96a7;margin-right:12px}
.faq-a{margin-top:10px;padding-left:34px;color:#5f6874;font-size:13px;line-height:1.9}

/* news */
.news{background:#f7f8fa}
.news-list{margin-top:34px;border-top:1px solid #dfe4eb}
.news-item{display:grid;grid-template-columns:160px 150px 1fr;gap:22px;align-items:center;padding:24px 0;border-bottom:1px solid #dfe4eb}
.date{font-size:13px;color:#697380;font-weight:700}
.tag{width:max-content;font-size:11px;font-weight:800;letter-spacing:.1em;border:1px solid #c9d0d9;border-radius:999px;padding:5px 12px;color:#5d6673}
.news-title{font-size:15px;font-weight:800}

/* contact form */
.contact{background:#fff}
.contact-wrap{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:52px;
  align-items:start;
}
.contact-info{
  position:sticky;
  top:110px;
}
.contact-note{
  margin-top:28px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#f7f8fa;
  color:#4f5865;
  font-size:13px;
  line-height:1.9;
}
.form-card{
  border:1px solid var(--line);
  border-radius:24px;
  background:#fff;
  padding:38px;
  box-shadow:var(--shadow-soft);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:12px;font-weight:900;color:#20252d}
.req{display:inline-block;margin-left:6px;font-size:10px;color:#fff;background:#111318;border-radius:999px;padding:1px 7px;vertical-align:1px}
.opt{display:inline-block;margin-left:6px;font-size:10px;color:#7a838f;font-weight:700}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid #dfe4eb;
  background:#f9fafc;
  border-radius:12px;
  padding:14px 15px;
  font-family:inherit;
  font-size:14px;
  color:#111318;
  outline:none;
  transition:.2s;
}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:#9bc7ff;
  background:#fff;
  box-shadow:0 0 0 4px rgba(124,183,255,.18);
}
.privacy{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin:20px 0 22px;
  font-size:12px;
  color:#5e6672;
  line-height:1.8;
}
.privacy input{margin-top:5px;accent-color:#111318}
.submit-btn{
  width:100%;
  border:0;
  border-radius:999px;
  background:#111318;
  color:#fff;
  padding:17px 24px;
  font-family:inherit;
  font-size:14px;
  font-weight:900;
  letter-spacing:.08em;
  cursor:pointer;
  box-shadow:0 18px 38px rgba(0,0,0,.18);
  transition:.25s;
}
.submit-btn:hover{transform:translateY(-2px);box-shadow:0 24px 46px rgba(0,0,0,.22)}
.submit-btn:disabled{cursor:not-allowed;opacity:.68;transform:none;box-shadow:none}
.form-caption{margin-top:14px;text-align:center;color:#7a838f;font-size:11px}
.form-status{min-height:1.8em;margin-top:12px;text-align:center;color:#20252d;font-size:12px;font-weight:800}
.form-status.is-success{color:#1d7a3e}
.form-status.is-error{color:#c0392b}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* cta */
.cta{
  background:#0f1319;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 75% 35%,rgba(124,183,255,.22),transparent 30%),
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:auto,60px 60px,60px 60px;
}
.cta-inner{position:relative;z-index:1;text-align:center;padding:110px 0}
.cta h2{font-size:48px;line-height:1.35;letter-spacing:-.05em;font-weight:900;margin-bottom:22px}
.cta p{color:#c3cad3;font-size:15px;margin-bottom:34px}
.cta .hero-button{background:#fff;color:#111}

/* footer */
.footer{background:#fff;padding:54px 0 36px}
.footer-inner{display:flex;justify-content:space-between;gap:40px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand img{width:70px}
.footer-brand strong{display:block;font-size:19px;font-weight:900;line-height:1.1}
.footer-brand span{display:block;font-size:10px;font-weight:800;letter-spacing:.24em;color:#5d6570;margin-top:4px}
.footer-links{display:flex;gap:30px;flex-wrap:wrap}
.footer-links a{font-size:12px;font-weight:800;letter-spacing:.14em;color:#4f5865}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;padding-top:26px;color:#7a838f;font-size:12px}

@media(max-width:1100px){
  .page{width:calc(100% - 28px);margin:14px auto 34px;border-radius:22px}
  .container{width:min(var(--max),calc(100% - 56px))}
  .nav{width:calc(100% - 44px)}
  .nav-links{gap:18px}.nav-links a{font-size:11px}.nav-cta{padding:12px 16px}
  .hero-inner{width:calc(100% - 56px);grid-template-columns:.9fr 1.1fr;gap:26px}
  .hero-copy{padding-left:12px}.hero-copy h1{font-size:48px}.hero-copy p{font-size:15px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:1fr}.works-grid{grid-template-columns:1fr 1fr}.concept-grid{grid-template-columns:1fr}
  .concept-panel{min-height:380px}.footer-inner{align-items:flex-start}
}

/* tablet */
@media(max-width:900px){
  .page{width:100%;margin:0;border-radius:0;box-shadow:none}
  .header{height:74px;border-radius:0}
  .nav{height:74px;width:calc(100% - 40px)}
  .brand-mark{width:48px}.brand-text strong{font-size:17px}.brand-text span{font-size:9px}
  .menu-toggle{display:flex}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:10px;
    border:1px solid rgba(230,233,238,.95);
    border-radius:18px;
    background:rgba(255,255,255,.96);
    box-shadow:0 24px 60px rgba(17,19,24,.16);
    backdrop-filter:blur(18px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-8px);
    transition:.22s;
  }
  .nav.is-open .nav-links{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateY(0);
  }
  .nav-links a{
    display:flex;
    align-items:center;
    min-height:46px;
    padding:0 16px;
    border-radius:10px;
    font-size:12px;
  }
  .nav-links a:hover{background:#f3f7fc}
  .nav-links .nav-cta{
    justify-content:center;
    margin-top:8px;
    min-height:48px;
    padding:0 18px;
    box-shadow:none;
  }
  .container{width:calc(100% - 48px)}
  .section{padding:86px 0}
  .section-title{font-size:34px}
  .hero{min-height:auto;display:block}
  .hero::after{display:none}
  .hero-inner{
    width:calc(100% - 48px);
    display:grid;
    grid-template-columns:1fr;
    gap:0;
    padding:72px 0 92px;
  }
  .hero-copy{padding-left:0;max-width:520px}
  .hero-copy h1{font-size:38px;line-height:1.35}
  .hero-copy p{font-size:14px;line-height:1.95;max-width:440px;margin-bottom:26px}
  .hero-button{padding:13px 22px;font-size:12px}
  .hero-visual{display:none}
  .hero-logo-card{width:min(520px,86vw);margin:0 auto;transform:translateY(8px)}
  .scroll-label{display:none}
  .services{padding-top:74px}
  .service-grid{grid-template-columns:1fr;gap:14px}
  .service-card{
    min-height:auto;
    flex-direction:row;
    text-align:left;
    align-items:center;
    gap:18px;
    padding:22px 24px;
  }
  .service-card .icon{margin:0;flex:0 0 auto}
  .works{padding-top:24px;scroll-margin-top:88px}
  .section-row{align-items:flex-start;flex-direction:column;margin-bottom:24px}
  .works-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;overflow:visible}
  .work-body{padding:14px 16px 16px}
  .work-body h3{font-size:15px}
  .concept-grid{gap:40px}
  .concept-panel{min-height:340px;border-radius:22px}
  .team-grid{grid-template-columns:1fr;gap:14px}.member-card{min-height:auto}
  .news-item{grid-template-columns:120px 120px 1fr;gap:16px}
  .contact-wrap{grid-template-columns:1fr;gap:34px}.contact-info{position:static}.form-card{padding:30px}.form-grid{grid-template-columns:1fr 1fr}
  .problem-grid{grid-template-columns:1fr 1fr}.flow-grid{grid-template-columns:1fr 1fr}.voice-grid{grid-template-columns:1fr}.faq-a{padding-left:0}
  .cta-inner{padding:86px 0}.cta h2{font-size:36px}
  .footer-inner{flex-direction:column}.footer-links{gap:20px}
}

/* smartphone */
@media(max-width:640px){
  body{background:#fff}
  .header{height:68px}
  .nav{height:68px;width:calc(100% - 32px)}
  .brand{gap:10px}.brand-mark{width:40px}.brand-text strong{font-size:15px}.brand-text span{font-size:7px;letter-spacing:.18em}
  .menu-toggle{width:40px;height:40px}
  .nav-links{top:calc(100% + 8px);border-radius:16px}
  .container{width:calc(100% - 32px)}
  .section{padding:68px 0}
  .eyebrow{font-size:10px;margin-bottom:12px}
  .section-title{font-size:27px;line-height:1.45;letter-spacing:-.045em}
  .section-lead{font-size:13px;line-height:1.9;margin-top:14px}
  .hero{
    background:
      radial-gradient(circle at 78% 36%, rgba(124,183,255,.22), transparent 30%),
      linear-gradient(180deg,#fff 0%,#f7fbff 64%,#fff 100%);
  }
  .hero::before{background-size:42px 42px;opacity:.75}
  .hero-inner{width:calc(100% - 32px);padding:58px 0 74px;gap:0}
  .hero-copy h1{font-size:29px;line-height:1.45;margin-bottom:14px}
  .hero-copy p{font-size:12.5px;line-height:1.9;margin-bottom:22px;max-width:320px}
  .hero-button{padding:11px 18px;font-size:11px;gap:10px}
  .hero-logo-card{width:92vw;transform:translateY(6px)}
  .hero-logo-card img{width:84%}
  .services{padding-top:58px}
  .service-card{padding:18px 16px;border-radius:8px;gap:14px}
  .service-card h3{font-size:13px;margin-bottom:4px}.service-card p{font-size:11px;line-height:1.65}.icon{width:38px;height:38px;font-size:18px}
  .works{padding-top:22px;scroll-margin-top:80px}
  .works .container{width:calc(100% - 24px)}
  .works .section-row{gap:14px;margin-bottom:20px}
  .text-link{font-size:11px}
  .works-grid{display:grid;grid-template-columns:1fr;gap:16px;overflow:visible;padding-bottom:0}
  .work-body{padding:12px 14px 14px}
  .work-body h3{font-size:14px}
  .work-meta{font-size:11px}
  .concept-panel{min-height:260px;border-radius:18px}.concept-panel img{width:72%}
  .feature-list{margin-top:22px}.feature-item{padding:14px 0;gap:12px}.feature-item b{font-size:13px}.feature-item p{font-size:12px}.check{width:23px;height:23px;font-size:11px}
  .member-card{padding:24px 20px;border-radius:14px}.member-photo{width:62px;height:62px;font-size:20px}.member-card h3{font-size:21px}.bio{font-size:12.5px}
  .news-item{grid-template-columns:1fr;gap:8px;padding:20px 0}.tag{font-size:10px}.news-title{font-size:13px}
  .problem-grid{grid-template-columns:1fr}.problem-message{font-size:22px}.flow-grid{grid-template-columns:1fr}.voice-grid{grid-template-columns:1fr}.faq-item{padding:20px 0}.faq-q{font-size:14px}.faq-a{padding-left:0;font-size:12px}
  .contact-wrap{gap:26px}.contact-note{padding:18px;font-size:12px}.form-card{padding:22px 18px;border-radius:18px}.form-grid{grid-template-columns:1fr;gap:15px}.field input,.field select,.field textarea{font-size:13px;padding:13px}.submit-btn{padding:15px 20px;font-size:13px}
  .cta-inner{padding:74px 0}.cta h2{font-size:29px}.cta p{font-size:13px;line-height:1.9}
  .footer{padding:42px 0 28px}.footer-brand img{width:58px}.footer-links{gap:16px}.footer-links a{font-size:10px}.footer-bottom{flex-direction:column;font-size:11px}
}

/* back to top */
.to-top{
  position:fixed;
  right:22px;bottom:22px;
  z-index:90;
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:50%;
  background:#111318;
  color:#fff;
  font-size:18px;
  box-shadow:0 14px 32px rgba(0,0,0,.24);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:.25s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-3px)}
@media(max-width:640px){.to-top{right:14px;bottom:14px;width:42px;height:42px;font-size:16px}}

/* accessibility */
a:focus-visible,button:focus-visible,summary:focus-visible,
input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid #7cb7ff;
  outline-offset:2px;
  border-radius:6px;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}