:root{
  --ink:#0C1E33;
  --ink-soft:#1B3A5C;
  --paper:#FFFFFF;
  --mist:#F3F6F9;
  --line:#D8DFE6;
  --text:#2B3A49;
  --muted:#67788A;
  --crimson:#A6192E;
  --crimson-soft:#F7E9EC;
  --gold:#B08D57;
  --serif:"Shippori Mincho B1", serif;
  --sans:"Noto Sans JP", sans-serif;
  --num:"Inter","Noto Sans JP",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.9;font-size:15.5px;-webkit-font-smoothing:antialiased;}
html[lang="en"] body{line-height:1.75;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{font-family:var(--serif);color:var(--ink);font-weight:600;line-height:1.5;}
html[lang="en"] h1, html[lang="en"] h2, html[lang="en"] h3{font-family:var(--num);letter-spacing:0 !important;}
.container{max-width:1120px;margin:0 auto;padding:0 28px;}
.eyebrow{font-family:var(--num);font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--crimson);font-weight:600;display:block;margin-bottom:14px;}
.section{padding:104px 0;}
.section-title{font-size:34px;letter-spacing:.04em;margin-bottom:18px;}
.section-lead{max-width:680px;color:var(--muted);margin-bottom:56px;}
.btn{display:inline-block;font-family:var(--sans);font-weight:700;font-size:14px;letter-spacing:.08em;padding:16px 40px;border-radius:2px;transition:opacity .25s ease, transform .25s ease;}
.btn:hover{opacity:.85;transform:translateY(-1px);}
.btn-primary{background:var(--crimson);color:#fff;}
.btn-outline{border:1px solid var(--ink);color:var(--ink);}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;}

/* ===== Header ===== */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
.logo{font-family:var(--num);font-weight:700;font-size:17px;letter-spacing:.02em;color:var(--ink);}
.logo small{display:block;font-family:var(--sans);font-weight:500;font-size:9.5px;letter-spacing:.24em;color:var(--muted);}
.nav-links{display:flex;gap:26px;align-items:center;list-style:none;font-size:13.5px;font-weight:500;color:var(--ink-soft);white-space:nowrap;}
.nav-links a:hover{color:var(--crimson);}
.nav-cta{display:inline-block;background:var(--ink);color:#fff !important;padding:9px 20px;border-radius:2px;font-weight:700;white-space:nowrap;line-height:1;}
.nav-cta:hover{color:#fff !important;opacity:.85;}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:2px;overflow:hidden;font-family:var(--num);font-size:12px;font-weight:600;}
.lang-switch button{border:none;background:#fff;color:var(--muted);padding:7px 14px;cursor:pointer;letter-spacing:.06em;font:inherit;}
.lang-switch button.active{background:var(--ink);color:#fff;}
.lang-switch button:focus-visible{outline:2px solid var(--crimson);outline-offset:-2px;}

/* ===== Hero ===== */
.hero{position:relative;background:linear-gradient(160deg,#0A1828 0%,#0C2340 55%,#12365C 100%);color:#fff;padding:190px 0 120px;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none;}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr auto;gap:48px;align-items:end;}
.hero .eyebrow{color:#D9A5B0;}
.hero h1{color:#fff;font-size:clamp(32px,4.4vw,50px);letter-spacing:.03em;margin-bottom:26px;}
.hero h1 em{font-style:normal;color:#E8C9CF;border-bottom:1px solid rgba(232,201,207,.5);padding-bottom:2px;}
.hero p{max-width:640px;color:rgba(255,255,255,.82);font-size:16px;margin-bottom:42px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.tategaki{writing-mode:vertical-rl;font-family:var(--serif);font-size:15px;letter-spacing:.42em;color:rgba(255,255,255,.65);border-right:1px solid rgba(255,255,255,.25);padding-right:18px;height:260px;align-self:start;}
html[lang="en"] .tategaki{writing-mode:horizontal-tb;height:auto;border-right:none;border-top:1px solid rgba(255,255,255,.25);padding:14px 0 0;letter-spacing:.22em;font-family:var(--num);font-size:12px;text-transform:uppercase;max-width:210px;}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr;}.tategaki{display:none;}}
.hero-stats{position:relative;z-index:2;margin-top:76px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18);}
.stat{background:rgba(10,24,40,.6);padding:26px 24px;}
.stat b{font-family:var(--num);font-size:27px;font-weight:600;color:#fff;display:block;letter-spacing:.01em;line-height:1.3;margin-bottom:6px;}
.stat b span{font-size:14px;font-family:var(--sans);font-weight:500;margin-left:4px;}
.stat small{color:rgba(255,255,255,.62);font-size:12px;letter-spacing:.05em;line-height:1.6;display:block;}
@media(max-width:960px){.hero-stats{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.hero-stats{grid-template-columns:1fr;}}

/* ===== Solutions ===== */
.sol-flag{background:var(--mist);}
.procmine{display:grid;grid-template-columns:1.15fr 1fr;gap:60px;align-items:center;background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--crimson);padding:56px;margin-bottom:28px;}
@media(max-width:900px){.procmine{grid-template-columns:1fr;padding:36px 26px;}}
.sol-tag{display:inline-block;background:var(--crimson-soft);color:var(--crimson);font-size:11.5px;font-weight:700;letter-spacing:.14em;padding:4px 12px;margin-bottom:16px;}
.procmine h3{font-size:30px;margin-bottom:6px;}
.procmine .en-sub{font-family:var(--num);font-size:12px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;display:block;margin-bottom:20px;}
.procmine p{margin-bottom:18px;}
.check{list-style:none;margin:22px 0 30px;}
.check li{position:relative;padding-left:26px;margin-bottom:12px;font-size:14.5px;color:var(--ink-soft);}
.check li::before{content:"";position:absolute;left:0;top:11px;width:12px;height:2px;background:var(--crimson);}
.pm-diagram{border:1px solid var(--line);background:var(--mist);padding:34px 30px;}
.pm-step{display:flex;align-items:flex-start;gap:16px;padding:16px 0;border-bottom:1px dashed var(--line);}
.pm-step:last-child{border-bottom:none;}
.pm-step .no{font-family:var(--num);font-size:12px;font-weight:600;color:var(--crimson);letter-spacing:.1em;white-space:nowrap;padding-top:3px;}
.pm-step b{display:block;color:var(--ink);font-size:14.5px;margin-bottom:2px;}
.pm-step span{font-size:13px;color:var(--muted);line-height:1.7;display:block;}
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
@media(max-width:900px){.sol-grid{grid-template-columns:1fr;}}
.sol-card{background:var(--paper);border:1px solid var(--line);padding:40px 34px;display:flex;flex-direction:column;transition:box-shadow .3s ease, transform .3s ease;}
.sol-card:hover{box-shadow:0 14px 40px rgba(12,30,51,.10);transform:translateY(-3px);}
.sol-card h3{font-size:21px;margin-bottom:4px;}
.sol-card .en-sub{font-family:var(--num);font-size:11px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;display:block;margin-bottom:18px;}
.sol-card p{font-size:14.5px;flex:1;}
.sol-card .link{margin-top:24px;font-size:13.5px;font-weight:700;color:var(--crimson);letter-spacing:.06em;}
.sol-card .link::after{content:" →";}

/* ===== Trust ===== */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
@media(max-width:900px){.trust-grid{grid-template-columns:1fr;}}
.trust{border-top:1px solid var(--ink);padding-top:26px;}
.trust b{font-family:var(--serif);color:var(--ink);font-size:18px;display:block;margin-bottom:10px;}
html[lang="en"] .trust b{font-family:var(--num);}
.trust p{font-size:14px;color:var(--muted);}

/* ===== Team ===== */
.team-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start;}
@media(max-width:960px){.team-wrap{grid-template-columns:1fr;}}
.founder{display:flex;gap:18px;align-items:baseline;padding:20px 0;border-bottom:1px solid var(--line);}
.founder .role{font-size:11.5px;letter-spacing:.12em;color:var(--crimson);font-weight:700;white-space:nowrap;width:170px;}
.founder .name{font-family:var(--serif);font-size:19px;color:var(--ink);}
html[lang="en"] .founder .name{font-family:var(--num);}
.founder .name small{display:block;font-family:var(--num);font-size:11px;letter-spacing:.14em;color:var(--muted);}
.team-note{margin-top:26px;font-size:14.5px;}
.chart-card{border:1px solid var(--line);padding:36px 32px;background:var(--paper);}
.chart-card h4{font-family:var(--serif);color:var(--ink);font-size:17px;margin-bottom:4px;}
html[lang="en"] .chart-card h4{font-family:var(--num);}
.chart-card .src{font-size:11.5px;color:var(--muted);margin-bottom:22px;display:block;}
.chart-note{font-size:12px;color:var(--muted);margin-top:14px;}

/* ===== Message ===== */
.message{background:var(--ink);color:rgba(255,255,255,.88);}
.message .eyebrow{color:#D9A5B0;}
.message h2{color:#fff;}
.msg-body{max-width:760px;font-size:15.5px;line-height:2.3;}
html[lang="en"] .msg-body{line-height:1.95;}
.msg-body p{margin-bottom:2em;}
.msg-sign{margin-top:52px;font-family:var(--serif);font-size:16px;color:#fff;letter-spacing:.08em;}
html[lang="en"] .msg-sign{font-family:var(--num);}
.msg-sign small{display:block;font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.14em;margin-bottom:6px;font-family:var(--sans);}

/* ===== MVV ===== */
.mvv{background:var(--mist);}
.mvv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
@media(max-width:900px){.mvv-grid{grid-template-columns:1fr;}}
.mvv-card{background:var(--paper);border:1px solid var(--line);padding:44px 36px;text-align:left;}
.mvv-card .kind{font-family:var(--num);font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--gold);display:block;margin-bottom:18px;font-weight:600;}
.mvv-card h3{font-size:20px;line-height:1.7;margin-bottom:14px;}
.mvv-card p{font-size:13.5px;color:var(--muted);}
.values-line{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px;}
.values-line span{font-family:var(--num);font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink);border:1px solid var(--line);padding:6px 14px;background:var(--mist);}
.values-ja{margin-top:22px;}
.values-ja p{font-family:var(--serif);font-size:15px;color:var(--ink);line-height:1.6;margin-bottom:4px;}
html[lang="en"] .values-ja{display:none;}

/* ===== Clients ===== */
.client-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media(max-width:900px){.client-grid{grid-template-columns:repeat(2,1fr);}}
.client-logo{background:var(--paper);display:flex;align-items:center;justify-content:center;padding:34px 30px;min-height:130px;transition:background .3s ease;}
.client-logo:hover{background:var(--mist);}
.client-logo img{max-height:66px;max-width:100%;width:auto;object-fit:contain;transition:transform .3s ease;}
.client-logo:hover img{transform:scale(1.04);}
.client-note{margin-top:22px;font-size:12px;color:var(--muted);}
.client-note .note-faint{color:#A9B4BF;font-size:11px;}

/* ===== News ===== */
.news-item{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.news-item time{font-family:var(--num);color:var(--muted);font-size:13px;letter-spacing:.04em;}
.news-item a:hover{color:var(--crimson);}
@media(max-width:640px){.news-item{grid-template-columns:1fr;gap:4px;}}

/* ===== Contact ===== */
.contact{background:linear-gradient(160deg,#0A1828,#12365C);color:#fff;text-align:center;}
.contact h2{color:#fff;font-size:32px;margin-bottom:20px;}
.contact p{max-width:620px;margin:0 auto 40px;color:rgba(255,255,255,.8);}

footer{background:#081220;color:rgba(255,255,255,.55);font-size:12.5px;padding:44px 0;}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center;}
.foot-links{display:flex;gap:24px;flex-wrap:wrap;}
.foot-links a:hover{color:#fff;}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease;}
.reveal.on{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none;}}

/* ===== Mobile Menu ===== */
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;z-index:101;}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:transform .3s ease, opacity .3s ease;}
.menu-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}

@media(max-width:1120px){
  .menu-toggle{display:block;}
  .nav-links{
    display:none;
    position:fixed;
    top:68px;
    left:0;
    right:0;
    bottom:0;
    background:rgba(255,255,255,.98);
    backdrop-filter:blur(8px);
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:32px;
    font-size:18px;
    z-index:99;
  }
  .nav-links.open{display:flex;}
  .nav-cta{font-size:16px;padding:14px 32px;}
}