/* ============================================================
   ARGENTO — shared stylesheet (navy × silver / mincho)
   ============================================================ */
:root{
  --navy:#0c2438;
  --navy-2:#16395a;
  --ink:#1b2630;
  --slate:#5a6b7a;
  --silver:#9aa7b4;
  --silver-line:#cdd6de;
  --mist:#f3f6f9;
  --mist-2:#e9eef3;
  --paper:#ffffff;
  --serif:"Shippori Mincho", serif;
  --sans:"Noto Sans JP", sans-serif;
  --lat:"Cormorant Garamond", serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.9;-webkit-font-smoothing:antialiased;font-size:16px;}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}
.en{font-family:var(--lat);letter-spacing:.08em;}

/* ===== Header ===== */
header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .4s,box-shadow .4s,padding .4s;padding:22px 0;}
header.scrolled{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);box-shadow:0 1px 0 var(--mist-2);padding:14px 0;}
.nav{display:flex;align-items:center;justify-content:space-between;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;transition:color .4s;}
header.scrolled .brand{color:var(--navy);}
.brand .logo{height:74px;width:auto;display:block;transition:height .4s;}
header.scrolled .brand .logo{height:58px;}
.brand .logo-d{display:none;}
.brand .logo-l{display:block;}
header.scrolled .brand .logo-d{display:block;}
header.scrolled .brand .logo-l{display:none;}
.brand .mark{font-family:var(--lat);font-weight:600;font-size:30px;letter-spacing:.18em;line-height:1;}
.brand .jp{font-family:var(--serif);font-weight:600;font-size:13px;letter-spacing:.12em;opacity:.85;white-space:nowrap;}
.menu{display:flex;align-items:center;gap:30px;}
.menu a{position:relative;color:#fff;font-size:13.5px;font-weight:500;letter-spacing:.06em;transition:color .4s,opacity .25s;opacity:.92;}
header.scrolled .menu a{color:var(--ink);}
.menu a:hover{opacity:.6;}
.menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:1px;background:currentColor;opacity:.7;}
.nav-cta{font-size:13px;font-weight:700;letter-spacing:.06em;border:1px solid rgba(255,255,255,.6);color:#fff;padding:11px 22px;transition:all .3s;}
header.scrolled .nav-cta{border-color:var(--navy);color:var(--navy);}
.nav-cta:hover{background:var(--navy);border-color:var(--navy);color:#fff;opacity:1;}
header.scrolled .nav-cta:hover{background:var(--navy);color:#fff;}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;cursor:pointer;flex-shrink:0;padding:10px 6px;margin:-10px -6px -10px 0;}
.burger span{width:26px;height:2px;background:#fff;transition:.3s;}
header.scrolled .burger span{background:var(--navy);}
.nav-backdrop{display:none;position:fixed;inset:0;z-index:98;background:rgba(12,36,56,.42);}
.nav-backdrop.open{display:block;}

/* ===== Hero (top page) ===== */
.hero{position:relative;height:100vh;min-height:640px;display:flex;align-items:center;overflow:hidden;background:var(--navy);}
.hero image-slot{position:absolute;inset:0;width:100%;height:100%;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,26,42,.82) 0%,rgba(8,26,42,.55) 45%,rgba(8,26,42,.2) 100%);z-index:1;}
.hero-inner{position:relative;z-index:2;color:#fff;}
.hero .ey,.hero h1 span,.hero p{transform:translateY(26px);animation:heroIn 1s cubic-bezier(.2,.7,.2,1) both;}
.hero .ey{font-family:var(--lat);font-size:17px;letter-spacing:.28em;text-transform:uppercase;color:var(--silver);margin-bottom:26px;animation-delay:.1s;}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(34px,5.4vw,68px);line-height:1.5;letter-spacing:.04em;margin-bottom:30px;}
.hero h1 span{display:block;}
.hero h1 span:nth-child(1){animation-delay:.25s;}
.hero h1 span:nth-child(2){animation-delay:.4s;}
.hero p{font-size:16px;max-width:520px;line-height:2.1;color:rgba(255,255,255,.88);animation-delay:.6s;}
@keyframes heroIn{from{transform:translateY(26px);}to{transform:translateY(0);}}
.scroll-cue{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:2;display:flex;flex-direction:column;align-items:center;gap:10px;color:rgba(255,255,255,.7);font-family:var(--lat);font-size:12px;letter-spacing:.2em;}
.scroll-cue i{width:1px;height:46px;background:rgba(255,255,255,.5);animation:cue 1.8s ease-in-out infinite;transform-origin:top;}
@keyframes cue{0%,100%{transform:scaleY(.3);opacity:.4;}50%{transform:scaleY(1);opacity:1;}}

/* ===== Page hero (inner pages) ===== */
.page-hero{position:relative;background:var(--navy);color:#fff;padding:188px 0 84px;overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(205,214,222,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(205,214,222,.06) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:radial-gradient(circle at 84% 30%,#000,transparent 75%);mask-image:radial-gradient(circle at 84% 30%,#000,transparent 75%);}
.page-hero .wrap{position:relative;z-index:2;}
.page-hero .num{font-family:var(--lat);font-size:15px;letter-spacing:.2em;color:var(--silver);}
.page-hero h1{font-family:var(--lat);font-size:clamp(40px,6vw,72px);font-weight:600;line-height:1;margin:8px 0 12px;}
.page-hero .jp{font-family:var(--serif);font-weight:600;font-size:17px;letter-spacing:.16em;color:rgba(255,255,255,.86);}
.page-hero .jp::before{content:"";display:inline-block;width:30px;height:1px;background:var(--silver);vertical-align:middle;margin-right:14px;}
.crumb{position:absolute;top:118px;left:0;right:0;z-index:2;}
.crumb .wrap{display:flex;gap:10px;align-items:center;font-size:12px;letter-spacing:.05em;color:rgba(255,255,255,.6);}
.crumb a:hover{color:#fff;}
.crumb span{opacity:.4;}

/* ===== Section scaffolding ===== */
section{padding:120px 0;}
.sec-head{margin-bottom:60px;}
.sec-head.center{text-align:center;}
.sec-head .num{font-family:var(--lat);font-size:15px;letter-spacing:.2em;color:var(--silver);}
.sec-head .en-t{font-family:var(--lat);font-size:clamp(34px,5vw,54px);font-weight:600;color:var(--navy);line-height:1.1;margin:6px 0 14px;}
.sec-head .jp-t{font-family:var(--serif);font-weight:600;font-size:18px;letter-spacing:.14em;color:var(--slate);}
.sec-head .jp-t::before{content:"";display:inline-block;width:30px;height:1px;background:var(--silver);vertical-align:middle;margin-right:14px;}
.sec-head.center .jp-t::before{display:none;}

/* reveal */
.reveal{opacity:0;transform:translateY(34px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}

/* buttons */
.btn-line{display:inline-flex;align-items:center;gap:14px;font-family:var(--lat);letter-spacing:.12em;font-size:15px;border:1px solid rgba(255,255,255,.4);color:#fff;padding:16px 40px;transition:all .35s;}
.btn-line:hover{background:#fff;color:var(--navy);}
.btn-dark{display:inline-flex;align-items:center;gap:14px;font-family:var(--lat);letter-spacing:.1em;font-size:15px;border:1px solid var(--navy);color:var(--navy);padding:15px 38px;transition:all .35s;}
.btn-dark:hover{background:var(--navy);color:#fff;gap:20px;}
.more{margin-top:56px;text-align:center;}

/* ===== Greeting ===== */
.greet{background:var(--mist);}
.greet-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:72px;align-items:center;}
.greet image-slot{width:100%;height:520px;}
.greet .lead{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3vw,34px);line-height:1.85;color:var(--navy);letter-spacing:.04em;margin-bottom:30px;}
.greet p{color:var(--slate);margin-bottom:18px;font-size:15.5px;}
.greet .sign{margin-top:34px;display:flex;align-items:baseline;gap:16px;}
.greet .sign .role{font-size:13px;color:var(--slate);letter-spacing:.1em;}
.greet .sign .name{font-family:var(--serif);font-size:24px;font-weight:700;color:var(--navy);letter-spacing:.1em;}

/* ===== Business ===== */
.biz-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--silver-line);border:1px solid var(--silver-line);}
.biz-card{background:#fff;padding:48px 44px;transition:background .4s;position:relative;display:block;}
.biz-card:hover{background:var(--mist);}
.biz-card .bn{font-family:var(--lat);font-size:14px;letter-spacing:.2em;color:var(--silver);}
.biz-card h3{font-family:var(--serif);font-weight:700;font-size:25px;color:var(--navy);margin:14px 0 16px;letter-spacing:.06em;}
.biz-card h3 .sub{display:block;font-family:var(--lat);font-size:14px;letter-spacing:.14em;color:var(--silver);font-weight:600;margin-top:4px;}
.biz-card p{color:var(--slate);font-size:14.5px;}
.biz-card .ar{position:absolute;right:40px;bottom:40px;width:34px;height:1px;background:var(--navy);transition:width .4s;}
.biz-card:hover .ar{width:54px;}

/* business detail blocks */
.biz-detail{display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch;border:1px solid var(--silver-line);margin-bottom:36px;}
.biz-detail:nth-child(even){direction:rtl;}
.biz-detail:nth-child(even)>*{direction:ltr;}
.biz-detail image-slot{width:100%;height:420px;}
.biz-detail .txt{padding:56px 56px;display:flex;flex-direction:column;justify-content:center;}
.biz-detail .bn{font-family:var(--lat);font-size:46px;font-weight:600;color:var(--mist-2);line-height:1;}
.biz-detail h3{font-family:var(--serif);font-weight:700;font-size:28px;color:var(--navy);margin:6px 0 6px;letter-spacing:.05em;}
.biz-detail .sub{font-family:var(--lat);font-size:14px;letter-spacing:.16em;color:var(--silver);font-weight:600;margin-bottom:20px;}
.biz-detail p{color:var(--slate);font-size:15px;margin-bottom:20px;}
.biz-detail ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px;}
.biz-detail ul li{font-size:13px;color:var(--slate);border:1px solid var(--silver-line);padding:7px 16px;letter-spacing:.04em;}

/* ===== Works ===== */
.works{background:var(--navy);color:#fff;}
.works .sec-head .en-t{color:#fff;}
.works .sec-head .num,.works .sec-head .jp-t{color:var(--silver);}
.works .sec-head .jp-t::before{background:var(--silver);}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.work{cursor:pointer;display:block;}
.work image-slot{width:100%;height:260px;margin-bottom:18px;transition:opacity .35s;}
.work:hover image-slot{opacity:.86;}
.work .cat{font-family:var(--lat);font-size:12px;letter-spacing:.18em;color:var(--silver);text-transform:uppercase;}
.work h4{font-family:var(--serif);font-weight:600;font-size:19px;margin:8px 0 4px;letter-spacing:.05em;color:inherit;}
.work .loc{font-size:13px;color:rgba(255,255,255,.6);}
/* works on light bg (works page) */
.works-light{background:var(--paper);}
.works-light .work h4{color:var(--navy);}
.works-light .work .cat{color:var(--silver);}
.works-light .work .loc{color:var(--slate);}
.work .credit{font-size:12px;color:var(--silver);margin-top:6px;letter-spacing:.04em;}
.works-light .work .credit{color:var(--slate);}
.works .work .credit{color:rgba(255,255,255,.45);}
.works-note{margin-top:48px;padding-top:28px;border-top:1px solid var(--silver-line);font-size:13px;line-height:1.85;color:var(--slate);max-width:720px;}
.works .works-note{color:rgba(255,255,255,.55);border-top-color:rgba(255,255,255,.15);}

/* filter bar */
.filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:48px;}
.filter button{font-family:var(--sans);font-size:13px;letter-spacing:.06em;color:var(--slate);background:#fff;border:1px solid var(--silver-line);padding:10px 22px;cursor:pointer;transition:all .25s;}
.filter button:hover{border-color:var(--navy);color:var(--navy);}
.filter button.on{background:var(--navy);border-color:var(--navy);color:#fff;}

/* ===== Stats / record ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--silver-line);border-bottom:1px solid var(--silver-line);}
.stat{padding:54px 28px;text-align:center;border-right:1px solid var(--silver-line);}
.stat:last-child{border-right:none;}
.stat .v{font-family:var(--lat);font-size:clamp(44px,5vw,64px);font-weight:600;color:var(--navy);line-height:1;}
.stat .v small{font-size:24px;color:var(--silver);}
.stat .l{font-size:13.5px;color:var(--slate);letter-spacing:.08em;margin-top:14px;}
.record-list{margin-top:60px;}
.record-list .row{display:grid;grid-template-columns:140px 1fr 160px;gap:24px;padding:22px 8px;border-bottom:1px solid var(--mist-2);align-items:center;}
.record-list .row .yr{font-family:var(--lat);font-size:17px;color:var(--silver);letter-spacing:.08em;}
.record-list .row .nm{font-weight:500;color:var(--ink);}
.record-list .row .tg{justify-self:end;font-size:12px;color:var(--slate);border:1px solid var(--silver-line);padding:5px 14px;letter-spacing:.05em;}

/* ===== Company profile ===== */
.company{background:var(--mist);}
.company-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:72px;align-items:start;}
.prof-table{width:100%;border-collapse:collapse;}
.prof-table th,.prof-table td{text-align:left;padding:20px 4px;border-bottom:1px solid var(--silver-line);vertical-align:top;font-size:15px;}
.prof-table th{width:160px;font-weight:700;color:var(--navy);font-family:var(--serif);letter-spacing:.08em;}
.prof-table td{color:var(--slate);}
.company image-slot{width:100%;height:560px;}

/* timeline (history) */
.timeline{max-width:760px;margin:0 auto;}
.timeline .ev{display:grid;grid-template-columns:120px 1fr;gap:34px;padding:28px 0;border-bottom:1px solid var(--mist-2);position:relative;}
.timeline .ev .yr{font-family:var(--lat);font-size:22px;font-weight:600;color:var(--navy);letter-spacing:.04em;}
.timeline .ev .yr small{display:block;font-family:var(--sans);font-size:12px;color:var(--silver);letter-spacing:.1em;margin-top:2px;}
.timeline .ev .txt{color:var(--slate);font-size:15px;padding-left:30px;border-left:1px solid var(--silver-line);}
.timeline .ev .txt strong{display:block;color:var(--ink);font-weight:700;margin-bottom:2px;}

/* map */
.map-band{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--silver-line);}
.map-band .info{padding:56px;}
.map-band .info h3{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:20px;letter-spacing:.06em;}
.map-band .info dl{display:grid;grid-template-columns:90px 1fr;gap:12px 16px;font-size:14.5px;}
.map-band .info dt{color:var(--silver);font-family:var(--lat);letter-spacing:.1em;}
.map-band .info dd{color:var(--slate);}
.map-band image-slot{width:100%;height:100%;min-height:360px;}

/* ===== Recruit ===== */
.recruit{position:relative;color:#fff;background:var(--navy-2);overflow:hidden;}
.recruit image-slot{position:absolute;inset:0;width:100%;height:100%;}
.recruit::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,36,56,.92),rgba(12,36,56,.55));}
.recruit .wrap{position:relative;z-index:2;}
.recruit .en-t{color:#fff !important;}
.recruit .num,.recruit .jp-t{color:var(--silver) !important;}
.recruit .jp-t::before{background:var(--silver) !important;}
.recruit .lead{font-family:var(--serif);font-size:clamp(22px,2.6vw,30px);line-height:1.9;max-width:640px;margin-bottom:32px;letter-spacing:.04em;}
.recruit p{color:rgba(255,255,255,.82);max-width:560px;margin-bottom:36px;}

/* recruit detail */
.val-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.val-card{border:1px solid var(--silver-line);padding:42px 36px;}
.val-card .vn{font-family:var(--lat);font-size:14px;letter-spacing:.2em;color:var(--silver);}
.val-card h3{font-family:var(--serif);font-size:21px;color:var(--navy);margin:12px 0 12px;letter-spacing:.05em;}
.val-card p{color:var(--slate);font-size:14.5px;}
.job-table{width:100%;border-collapse:collapse;margin-top:8px;}
.job-table th,.job-table td{text-align:left;padding:22px 8px;border-bottom:1px solid var(--silver-line);vertical-align:top;font-size:15px;}
.job-table th{width:190px;font-family:var(--serif);font-weight:700;color:var(--navy);letter-spacing:.06em;}
.job-table td{color:var(--slate);}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:fl;}
.flow .step{position:relative;padding:36px 28px;background:var(--mist);}
.flow .step .sn{font-family:var(--lat);font-size:14px;letter-spacing:.2em;color:var(--silver);}
.flow .step h4{font-family:var(--serif);font-size:18px;color:var(--navy);margin:8px 0 8px;}
.flow .step p{font-size:13.5px;color:var(--slate);}

/* ===== Contact (blueprint) ===== */
.contact{position:relative;background:var(--paper);color:var(--ink);overflow:hidden;}
.contact::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(12,36,56,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(12,36,56,.05) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(circle at 78% 22%,#000,transparent 72%);mask-image:radial-gradient(circle at 78% 22%,#000,transparent 72%);}
.contact .wrap{position:relative;z-index:2;}
.contact .sec-head .en-t{color:var(--navy);}
.contact .sec-head .num,.contact .sec-head .jp-t{color:var(--silver);}
.contact .sec-head .jp-t::before{background:var(--silver);}
.contact-lead{font-family:var(--serif);font-weight:600;font-size:clamp(26px,3.4vw,42px);line-height:1.65;letter-spacing:.05em;color:var(--navy);margin-bottom:16px;}
.contact-sub{color:var(--slate);max-width:580px;margin-bottom:54px;font-size:15.5px;}
.contact-bar{display:grid;grid-template-columns:1fr 1.35fr;border-top:1px solid var(--silver-line);border-bottom:1px solid var(--silver-line);margin-bottom:66px;}
.contact-bar .c{padding:30px 38px;border-right:1px solid var(--silver-line);}
.contact-bar .c:first-child{padding-left:0;}
.contact-bar .c:last-child{border-right:none;}
.contact-bar .c .l{font-family:var(--lat);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--silver);margin-bottom:12px;}
.contact-bar .c .tel{font-family:var(--lat);font-size:clamp(28px,2.6vw,38px);font-weight:600;letter-spacing:.02em;line-height:1;color:var(--navy);}
.contact-bar .c .v{font-size:15px;color:var(--ink);line-height:1.75;}
.contact-bar .c .note{font-size:12.5px;color:var(--slate);margin-top:8px;letter-spacing:.04em;}

/* contact as drawing sheet (white paper) */
.sheet{position:relative;z-index:2;border:1px solid var(--silver-line);background:#fff;box-shadow:0 24px 60px rgba(12,36,56,.08);}
.sheet-top{display:flex;justify-content:space-between;align-items:center;padding:18px 30px;border-bottom:1px solid var(--silver-line);font-family:var(--lat);letter-spacing:.16em;font-size:12px;color:var(--slate);text-transform:uppercase;}
.sheet-top .tag{display:flex;gap:8px;align-items:center;}
.sheet-top .tag i{width:7px;height:7px;border:1px solid var(--silver);display:inline-block;}
.sheet-body{display:grid;grid-template-columns:1.6fr 1fr;}
.sheet-form{padding:48px 50px;}
.contact-form{max-width:780px;}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.cf-field{position:relative;margin-bottom:34px;}
.cf-field label{display:block;font-family:var(--lat);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--slate);margin-bottom:8px;}
.cf-field label span{color:#c0603e;margin-left:10px;font-family:var(--sans);font-size:10px;letter-spacing:.08em;}
.cf-field input,.cf-field textarea,.cf-field select{width:100%;background:transparent;border:none;border-bottom:1px solid var(--silver-line);color:var(--ink);font-family:var(--sans);font-size:16px;padding:11px 2px;transition:border-color .35s;border-radius:0;}
.cf-field textarea{resize:vertical;}
.cf-field input::placeholder,.cf-field textarea::placeholder{color:#aab5c0;}
.cf-field input:focus,.cf-field textarea:focus,.cf-field select:focus{outline:none;border-bottom-color:var(--navy);}
.cf-field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--navy) 50%),linear-gradient(135deg,var(--navy) 50%,transparent 50%);background-position:calc(100% - 14px) 18px,calc(100% - 8px) 18px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;cursor:pointer;}
.cf-field select option{color:#1b2630;}
.cf-submit{margin-top:14px;display:inline-flex;align-items:center;gap:18px;background:var(--navy);color:#fff;font-family:var(--lat);letter-spacing:.1em;font-size:17px;font-weight:600;border:1px solid var(--navy);padding:19px 52px;cursor:pointer;transition:background .35s,color .35s,gap .35s;}
.cf-submit:hover:not(:disabled){background:transparent;color:var(--navy);gap:26px;}
.cf-submit:disabled{opacity:.55;cursor:not-allowed;}
.cf-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none;}
.cf-err{display:block;font-size:12px;color:#c0603e;margin-top:6px;min-height:0;}
.cf-field.invalid input,.cf-field.invalid textarea,.cf-field.invalid select{border-bottom-color:#c0603e;}
.cf-privacy{margin-top:8px;}
.cf-check{display:flex;align-items:flex-start;gap:10px;cursor:pointer;font-family:var(--sans);font-size:14px;color:var(--ink);letter-spacing:.04em;text-transform:none;}
.cf-check input[type=checkbox]{width:18px;height:18px;margin-top:2px;flex-shrink:0;accent-color:var(--navy);cursor:pointer;}
.cf-check .req{color:#c0603e;font-size:10px;margin-left:6px;}
.cf-privacy-note{font-size:12.5px;color:var(--slate);margin-top:10px;line-height:1.7;max-width:640px;}
.cf-captcha{margin-top:10px;}
.cf-captcha-wrap{min-height:65px;}
.cf-message{padding:28px 32px;margin-bottom:32px;border:1px solid var(--silver-line);}
.cf-message strong{display:block;font-family:var(--serif);font-size:18px;color:var(--navy);margin-bottom:10px;letter-spacing:.04em;}
.cf-message p{font-size:14.5px;color:var(--slate);line-height:1.75;margin:0;}
.cf-success{background:#f0f7f4;border-color:#b8d4c8;}
.cf-success strong{color:#2a6b4f;}
.cf-error{background:#fdf5f3;border-color:#e8c4b8;}
.cf-error strong{color:#a04030;}
.contact-bar .tel{color:var(--navy);text-decoration:none;transition:opacity .25s;}
.contact-bar .tel:hover{opacity:.7;}
/* title block (表題欄) — navy accent panel */
.titleblock{background:var(--navy);color:#fff;display:flex;flex-direction:column;}
.titleblock .tb-row{padding:22px 30px;border-bottom:1px solid rgba(205,214,222,.2);}
.titleblock .tb-row:last-child{border-bottom:none;flex:1;}
.titleblock .k{font-family:var(--lat);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--silver);margin-bottom:8px;}
.titleblock .v{font-size:14.5px;color:rgba(255,255,255,.92);line-height:1.7;}
.titleblock .v.big{font-family:var(--lat);font-size:26px;font-weight:600;letter-spacing:.02em;}
.titleblock .mk{font-family:var(--lat);font-size:30px;font-weight:600;letter-spacing:.16em;color:#fff;}
.titleblock .mk small{display:block;font-family:var(--serif);font-size:12px;letter-spacing:.12em;color:var(--silver);margin-top:6px;}

/* ===== CTA band ===== */
.cta-band{background:var(--mist);text-align:center;}
.cta-band h2{font-family:var(--serif);font-weight:700;font-size:clamp(26px,3.4vw,40px);color:var(--navy);letter-spacing:.06em;line-height:1.6;margin-bottom:18px;}
.cta-band p{color:var(--slate);margin-bottom:34px;}

/* digest grid (top page company/recruit teaser) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:0;}
.split .pane{position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center;padding:72px 60px;color:#fff;}
.split .pane image-slot{position:absolute;inset:0;width:100%;height:100%;}
.split .pane::after{content:"";position:absolute;inset:0;background:rgba(12,36,56,.74);transition:background .4s;}
.split .pane:hover::after{background:rgba(12,36,56,.6);}
.split .pane .c{position:relative;z-index:2;}
.split .pane .num{font-family:var(--lat);font-size:14px;letter-spacing:.2em;color:var(--silver);}
.split .pane h3{font-family:var(--serif);font-size:28px;margin:10px 0 14px;letter-spacing:.06em;}
.split .pane p{font-size:14.5px;color:rgba(255,255,255,.82);max-width:380px;margin-bottom:26px;}

/* ===== Footer ===== */
footer{background:var(--ink);color:#fff;padding:80px 0 36px;}
.foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);}
.foot-brand .logo{height:104px;width:auto;display:block;margin-bottom:6px;}
.foot-brand .mark{font-family:var(--lat);font-size:34px;font-weight:600;letter-spacing:.18em;}
.foot-brand .jp{font-family:var(--serif);font-size:13px;letter-spacing:.14em;opacity:.7;margin-top:8px;}
.foot-brand .ad{font-size:13px;opacity:.6;margin-top:20px;line-height:1.9;}
.foot-nav{display:flex;gap:64px;}
.foot-nav .col h5{font-family:var(--lat);font-size:13px;letter-spacing:.14em;opacity:.5;margin-bottom:18px;}
.foot-nav .col a{display:block;font-size:14px;opacity:.82;margin-bottom:12px;transition:opacity .25s;}
.foot-nav .col a:hover{opacity:1;}
.copy{margin-top:30px;font-family:var(--lat);font-size:12px;letter-spacing:.1em;opacity:.45;}

/* ===== scroll-top ===== */
#toTop{position:fixed;right:26px;bottom:26px;z-index:90;width:48px;height:48px;border:1px solid var(--silver-line);background:rgba(255,255,255,.9);color:var(--navy);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .35s,transform .35s;backdrop-filter:blur(6px);}
#toTop.show{opacity:1;pointer-events:auto;}
#toTop:hover{transform:translateY(-4px);background:var(--navy);color:#fff;}

/* ===== Lightbox ===== */
#lb{position:fixed;inset:0;z-index:200;background:rgba(8,18,28,.94);display:none;align-items:center;justify-content:center;flex-direction:column;gap:18px;padding:40px;}
#lb.open{display:flex;}
#lb img{max-width:90vw;max-height:78vh;object-fit:contain;box-shadow:0 30px 80px rgba(0,0,0,.5);}
#lb .cap{color:#fff;font-family:var(--serif);letter-spacing:.06em;font-size:16px;}
#lb .x{position:absolute;top:26px;right:30px;color:#fff;font-size:30px;cursor:pointer;line-height:1;opacity:.8;}
#lb .x:hover{opacity:1;}
#lb .nav-a{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:40px;cursor:pointer;opacity:.6;user-select:none;padding:20px;}
#lb .nav-a:hover{opacity:1;}
#lb .prev{left:14px;}#lb .next{right:14px;}

/* ===== Responsive ===== */
@media(max-width:880px){
  .nav{position:relative;gap:20px;}
  .brand{flex:1;min-width:0;max-width:calc(100% - 52px);}
  .brand .logo{height:52px;}
  header.scrolled .brand .logo{height:46px;}
  .brand .mark{font-size:22px;letter-spacing:.14em;}
  .brand .jp{font-size:11px;letter-spacing:.06em;}
  .menu,.nav-cta{display:none;}
  .menu.open{display:flex !important;position:absolute;top:calc(100% + 10px);right:0;flex-direction:column;align-items:flex-start;background:#fff;padding:22px 30px;gap:16px;box-shadow:0 16px 40px rgba(0,0,0,.14);z-index:101;min-width:180px;}
  .menu.open a{color:var(--ink) !important;opacity:1;}
  .burger{display:flex;}
  body.nav-open{overflow:hidden;}
  .greet-grid,.company-grid,.map-band{grid-template-columns:1fr;gap:40px;}
  .map-band{gap:0;}
  .contact-bar{grid-template-columns:1fr;}
  .contact-bar .c{padding:24px 0;border-right:none;border-bottom:1px solid rgba(205,214,222,.18);}
  .contact-bar .c:last-child{border-bottom:none;}
  .cf-row{grid-template-columns:1fr;gap:0;}
  .cf-submit{width:100%;justify-content:center;}
  .biz-grid,.works-grid,.stats-grid,.val-grid,.flow,.split{grid-template-columns:1fr;}
  .biz-detail{grid-template-columns:1fr;direction:ltr;}
  .biz-detail:nth-child(even){direction:ltr;}
  .biz-detail .txt{padding:40px 32px;}
  .sheet-body{grid-template-columns:1fr;}
  .titleblock{border-left:none;border-top:1px solid rgba(205,214,222,.28);flex-direction:row;flex-wrap:wrap;}
  .titleblock .tb-row{flex:1 1 50%;border-bottom:1px solid rgba(205,214,222,.2);}
  .sheet-form{padding:36px 28px;}
  .stat{border-right:none;border-bottom:1px solid var(--silver-line);}
  .stat:last-child{border-bottom:none;}
  .greet image-slot,.company image-slot{height:380px;}
  section{padding:78px 0;}
  .page-hero{padding:150px 0 60px;}
  .record-list .row,.timeline .ev{grid-template-columns:70px 1fr;gap:18px;}
  .record-list .row .tg{display:none;}
  .timeline .ev .txt{padding-left:18px;}
  .job-table th{width:120px;}
}