/* General in Port — corporate site (enterprise-clean, NTT Data-inspired original branding) */
:root{
  --navy:#0a2a4e;
  --navy-deep:#071d38;
  --blue:#0060c0;
  --blue-600:#0a4fa0;
  --ink:#14263a;
  --muted:#5b6b7b;
  --line:#e3e9f0;
  --soft:#f4f7fb;
  --white:#ffffff;
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Meiryo",-apple-system,"Segoe UI",Arial,sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.85;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:100;
  background:var(--navy);
  height:64px;
}
header .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;}
.brand{display:flex;align-items:baseline;gap:10px;color:#fff;white-space:nowrap;}
.brand .mark{
  font-weight:600;font-size:19px;letter-spacing:.02em;color:#fff;
}
.brand .mark b{color:inherit;font-weight:600;}
.brand .tag{font-size:11px;letter-spacing:.18em;color:#9db6d6;}
nav.gnav ul{list-style:none;display:flex;gap:26px;}
nav.gnav a{color:#dfe8f4;font-size:13.5px;letter-spacing:.04em;padding:6px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s;}
nav.gnav a:hover{color:#fff;border-color:#6fb4ff;}
.menu-btn{display:none;background:none;border:none;width:30px;height:22px;position:relative;cursor:pointer;}
.menu-btn span{position:absolute;left:0;width:100%;height:2px;background:#fff;transition:.2s;}
.menu-btn span:nth-child(1){top:0;}
.menu-btn span:nth-child(2){top:10px;}
.menu-btn span:nth-child(3){top:20px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#071d38 0%,#0a2a4e 55%,#0d3566 100%);
  color:#fff;
}
.hero .bgart{position:absolute;inset:0;pointer-events:none;}
.hero canvas.bgart{width:100%;height:100%;display:block;}
.hero .scrim{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(5,14,28,.92) 0%,rgba(5,14,28,.6) 42%,rgba(5,14,28,.08) 78%,rgba(5,14,28,0) 100%);}
.hero .wrap{position:relative;padding:96px 24px 104px;}
.hero .lines{display:flex;gap:8px;margin-bottom:28px;}
.hero .lines i{display:block;height:2px;background:#4d8fd6;}
.hero .lines i:nth-child(1){width:54px;}
.hero .lines i:nth-child(2){width:32px;opacity:.7;}
.hero .lines i:nth-child(3){width:16px;opacity:.45;}
.hero .eyebrow{font-size:12.5px;letter-spacing:.32em;color:#8fb6e6;margin-bottom:22px;}
.hero h1{
  font-size:clamp(32px,5vw,58px);font-weight:700;line-height:1.28;letter-spacing:.05em;
}
.hero .brandline{
  margin-top:22px;font-size:clamp(13px,1.5vw,16px);letter-spacing:.14em;
  color:#8fb6e6;font-weight:400;
}
.hero p.lead{margin-top:30px;max-width:660px;color:#cfdcec;font-size:clamp(14px,1.6vw,16px);line-height:2.05;}
.hero .cta{
  display:inline-block;margin-top:36px;background:#0060c0;color:#fff;
  padding:14px 34px;font-size:14px;letter-spacing:.08em;border-radius:2px;transition:background .2s;
}
.hero .cta:hover{background:#1f7ae0;}

/* ---------- Sections ---------- */
section{padding:56px 0;}
.sec-soft{background:var(--soft);}
.sec-head{margin-bottom:34px;}
.sec-head .label{color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.22em;display:block;margin-bottom:14px;}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:.02em;line-height:1.4;}
.sec-head p{margin-top:18px;color:var(--muted);max-width:720px;}

/* Services */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.svc{
  background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);
  padding:34px 30px 32px;transition:box-shadow .2s,transform .2s;
}
.svc:hover{box-shadow:0 14px 34px rgba(10,42,78,.12);transform:translateY(-3px);}
.svc .no{color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.14em;}
.svc h3{font-size:19px;font-weight:700;margin:12px 0 6px;line-height:1.5;}
.svc .en{font-size:11px;letter-spacing:.16em;color:#9aa9b8;text-transform:uppercase;margin-bottom:16px;}
.svc p{font-size:13.5px;color:var(--muted);line-height:1.95;}
.svc ul{list-style:none;margin-top:18px;border-top:1px solid var(--line);padding-top:16px;}
.svc li{font-size:13px;color:var(--ink);padding:6px 0 6px 18px;position:relative;line-height:1.7;}
.svc li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:7px;background:var(--blue);border-radius:1px;}

/* Strengths */
.str-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--line);background:#fff;}
.str{padding:34px 34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
.str:nth-child(2n){border-right:none;}
.str .k{color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.16em;}
.str h3{font-size:17px;font-weight:700;margin:10px 0 8px;}
.str p{font-size:13.5px;color:var(--muted);line-height:1.95;}

/* Stats row */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.stat{text-align:center;padding:8px 0;}
.stat .num{font-size:clamp(30px,4vw,44px);font-weight:700;color:var(--navy);line-height:1;}
.stat .num small{font-size:16px;font-weight:700;margin-left:2px;}
.stat .cap{margin-top:12px;font-size:12.5px;color:var(--muted);letter-spacing:.04em;}

/* Commerce concept + pillars + brands */
.concept{max-width:820px;color:var(--muted);font-size:14.5px;line-height:2;}
.concept strong{color:var(--ink);}
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;}
.pillar{background:#fff;border:1px solid var(--line);padding:28px 24px;}
.pillar .k{color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.14em;}
.pillar h3{font-size:17px;font-weight:700;margin:10px 0 4px;}
.pillar .en{font-size:10.5px;letter-spacing:.14em;color:#9aa9b8;text-transform:uppercase;margin-bottom:12px;}
.pillar p{font-size:13px;color:var(--muted);line-height:1.9;}
.pillar em{display:block;margin-top:12px;font-style:normal;color:var(--navy);font-size:12.5px;font-weight:700;}
.brand-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;}
.biz-brand{min-width:0;border:1px solid var(--line);background:#fff;padding:24px 24px;}
.biz-brand h4{font-size:16px;font-weight:700;margin-bottom:4px;}
.biz-brand .en{font-size:10.5px;letter-spacing:.12em;color:#9aa9b8;text-transform:uppercase;}
.biz-brand p{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.9;}
.pillar{min-width:0;}
.sub-label{font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--navy);margin:52px 0 4px;}

/* Company table */
.profile{border-top:1px solid var(--line);max-width:860px;}
.profile dl{display:grid;grid-template-columns:200px 1fr;border-bottom:1px solid var(--line);}
.profile dt{padding:20px 12px;font-size:13.5px;font-weight:700;color:var(--navy);background:var(--soft);}
.profile dd{padding:20px 18px;font-size:14px;color:var(--ink);}

/* Contact */
.contact-box{background:var(--navy);color:#fff;padding:56px 40px;text-align:center;}
.contact-box h2{font-size:26px;font-weight:700;letter-spacing:.02em;}
.contact-box p{margin-top:16px;color:#cfdcec;font-size:14px;}
.contact-box a.mail{display:inline-block;margin-top:24px;background:#0060c0;color:#fff;padding:15px 40px;font-size:15px;letter-spacing:.06em;border-radius:2px;transition:background .2s;}
.contact-box a.mail:hover{background:#1f7ae0;}

/* Footer */
footer{background:var(--navy-deep);color:#9db3cc;padding:56px 0 0;}
.ft-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px;}
.ft-brandcol .fbrand{color:#fff;font-weight:700;font-size:18px;letter-spacing:.02em;}
.ft-tag{margin-top:12px;font-size:12px;letter-spacing:.08em;color:#7f97b3;}
.ft-desc{margin-top:6px;font-size:12.5px;color:#9db3cc;line-height:1.9;}
.ft-col h4{color:#dfe8f4;font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:16px;
  padding-bottom:10px;border-bottom:1px solid rgba(157,179,204,.22);}
.ft-col ul{list-style:none;}
.ft-col li{margin-bottom:10px;}
.ft-col a{color:#9db3cc;font-size:13px;transition:color .2s;}
.ft-col a:hover{color:#fff;}
.ft-bottom{border-top:1px solid rgba(157,179,204,.18);padding:18px 0;}
.ft-bottom .wrap{display:flex;justify-content:center;}
footer .copy{font-size:12px;letter-spacing:.04em;color:#7f97b3;}

/* Slide-down mobile nav */
@media(max-width:860px){
  nav.gnav{position:absolute;top:64px;left:0;width:100%;background:var(--navy-deep);display:none;}
  nav.gnav.open{display:block;}
  nav.gnav ul{flex-direction:column;gap:0;padding:8px 0;}
  nav.gnav a{display:block;padding:14px 24px;border-bottom:none;}
  .menu-btn{display:block;}
  .svc-grid{grid-template-columns:1fr;}
  .str-grid{grid-template-columns:1fr;}
  .pillar-grid{grid-template-columns:repeat(2,1fr);}
  .brand-strip{grid-template-columns:1fr;}
  .ft-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .ft-brandcol{grid-column:1/-1;}
  .str{border-right:none;}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 16px;}
  .profile dl{grid-template-columns:120px 1fr;}
  .hero .wrap{padding:72px 24px 80px;}
}