:root{
  --black:#000000;
  --gray:#d7d7d7;
  --white:#fff;
}

*{box-sizing:border-box}

body{margin:0;background:var(--black);color:var(--white);font-family:"Yu Mincho","Hiragino Mincho ProN",serif;letter-spacing:.04em}

.site-shell{width:min(100%,1400px);margin:0 auto;background:#111;min-height:100vh;overflow:hidden}

.hero{position:relative;height:58vh;min-height:520px;display:grid;grid-template-rows:auto 1fr;overflow:hidden}

.slideshow,.slide{position:absolute;inset:0}
.slide{
  background-size:cover !important;
  background-position:center center !important;
  background-repeat:no-repeat !important;
  opacity:0;
  transition:opacity 1.4s ease;
  filter:brightness(.55) contrast(1.05);
}
.slide.is-active{opacity:1}.slide:nth-child(1){background:linear-gradient(135deg,#151515,#454545)}.slide:nth-child(2){background:linear-gradient(135deg,#202020,#585858)}.slide:nth-child(3){background:linear-gradient(135deg,#101820,#404850)}.slide:nth-child(4){background:linear-gradient(135deg,#1e1e1e,#666)}.slide:nth-child(5){background:linear-gradient(135deg,#080808,#333)}

.header{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;padding:28px 30px}.logo{color:#fff;text-decoration:none;font:700 20px/1 Arial,sans-serif;letter-spacing:.01em}.mail{width:30px;height:30px;border:0px solid #fff;display:grid;place-items:center;color:#fff;text-decoration:none;font-family:Arial,sans-serif}

.hero-copy{position:relative;z-index:2;align-self:center;text-align:center;padding:0 30px;text-shadow:0 3px 20px #000}.hero-copy h1{font-size:clamp(32px,7vw,58px);font-weight:700;margin:0 0 18px}.hero-copy p{font-family:"Yu Gothic","Hiragino Kaku Gothic ProN",sans-serif;font-size:clamp(15px,2.5vw,22px);font-weight:700;margin:0}

.ticker{background:#151515;color:#dadada;font-family:"Yu Gothic",sans-serif;white-space:nowrap;overflow:hidden;padding:12px 0}.ticker-track{display:inline-flex;gap:24px;animation:ticker 22s linear infinite}.ticker span{font-size:17px;font-weight:400}@keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.contents{background:#000000;color:#ffffff;padding:28px 28px 40px;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN",sans-serif}.contents h2{text-align:center;color:#7d7d7d;font-family:"Yu Gothic",serif;font-size:24px;margin:0 0 26px}.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 36px}.card{appearance:none;border:0;background:transparent;color:#fff;text-align:left;cursor:pointer;padding:0;font:inherit}.thumb{display:grid;place-items:center;aspect-ratio:16/9;border:1px solid #525252;background:rgba(255,255,255,.16);margin-bottom:8px}.card strong{display:block;font-size:14px;font-weight:900;letter-spacing:.02em;text-align:center;}.card:hover .thumb{background:rgba(255,255,255,.32)}

.company{background:#f8f8f8;color:#222;padding:38px 34px 30px;text-align:center;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN",serif}.company div{max-width:460px;margin:0 auto 18px;padding:10px 28px;border:1px solid #ddd;border-radius:999px;background:#fff}.company strong{font-size:18px}.company p{margin:5px 0 0;font-size:14px}.footer{background:#fff;color:#111;text-align:center;padding:14px;font:12px Arial,sans-serif;border-top:1px solid #ccc}

.thumb img{width:100%;height:100%;object-fit:cover;display:block;}

.modal{width:min(92%,560px);border:0;padding:24px;background:#fff;color:#111;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif}.modal::backdrop{background:rgba(0,0,0,.75)}.close{position:absolute;right:10px;top:8px;border:0;background:#111;color:#fff;border-radius:50%;width:28px;height:28px;cursor:pointer}.modal-image{aspect-ratio:16/9;background:#ddd;display:grid;place-items:center;margin-bottom:18px}.modal h3{margin:0 0 10px}.modal a{color:#111;font-weight:bold}

.modal-image img{width:100%;height:100%;object-fit:cover;display:block;}

@media (max-width:620px){
  .site-shell{width:100%}
  .hero{height:52vh;min-height:420px}
  .slide{
    /* SP時も画像を画面いっぱいに表示し、上下の黒帯・縮小表示を防ぐ */
    background-size:cover !important;
    background-position:center center !important;
    background-repeat:no-repeat !important;
    background-color:#000000;
  }
  .header{padding:22px}
  .hero-copy{padding:0 22px}
  .cards{grid-template-columns:1fr;gap:24px}
  .contents{padding:26px 22px 36px}
  .company{padding:30px 20px}
  .company div{border-radius:24px}
  .ticker-track{animation-duration:18s}
}

.header-icons{display:flex;align-items:center;gap:12px}.icon-button,.mail{width:38px;height:38px;border:0;background:transparent;padding:0;display:grid;place-items:center;cursor:pointer}.icon-button img,.mail img{width:100%;height:100%;display:block}.mail{border:0}.company div{position:relative}.company-info{display:inline-grid;place-items:center;width:24px;height:24px;margin-left:8px;padding:0;border:0;background:transparent;vertical-align:middle;cursor:pointer}.company-info img{width:100%;height:100%;display:block}.pagetop{position:fixed;right:22px;bottom:22px;z-index:8;width:46px;height:46px;border:1px solid rgba(255,255,255,.45);border-radius:50%;background:rgba(0,0,0,.72);color:#fff;font:700 24px/1 Arial,sans-serif;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease}.pagetop.is-visible{opacity:1;pointer-events:auto}.pagetop:hover{transform:translateY(-3px)}
.about-modal{width:min(92%,760px);border:1px solid rgba(255,255,255,.7);padding:0;background:#080808;color:#fff;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif}.about-modal::backdrop{background:rgba(0,0,0,.82)}.about-close{position:absolute;right:12px;top:12px;border:2px solid #fff;background:#080808;color:#fff;border-radius:50%;width:30px;height:30px;cursor:pointer;font:700 22px/24px Arial,sans-serif}.about-inner{padding:40px 46px 38px}.about-inner h2{margin:0 0 24px;font-size:30px;font-weight:700;letter-spacing:.04em}.about-table{margin:0 0 34px}.about-table div{display:grid;grid-template-columns:150px 1fr;border-bottom:1px solid rgba(255,255,255,.75);padding:11px 0;align-items:end}.about-table dt{font-size:15px;font-weight:700}.about-table dd{margin:0;font-size:18px;font-weight:700}.about-profile{display:grid;grid-template-columns:42% 1fr;gap:30px;align-items:start}.about-photo{border:1px solid rgba(255,255,255,.75);background:#222;aspect-ratio:4/3;overflow:hidden}.about-photo img{width:100%;height:100%;object-fit:cover;display:block}.about-copy{font-size:13px;line-height:1.8}.about-role{font-size:13px;font-weight:700;margin:0 0 2px}.about-copy h3{font-size:30px;line-height:1;margin:-10 0 14px;font-family:Arial,sans-serif;font-weight:900;letter-spacing:.06em}.about-copy p{margin:0 0 18px}.about-sign{width:145px;max-width:50%;display:block;margin-left:auto;margin-top:8px}
@media (max-width:620px){.header-icons{gap:9px}.icon-button,.mail{width:34px;height:34px}.pagetop{right:16px;bottom:16px;width:42px;height:42px}.about-inner{padding:34px 24px 28px}.about-table div{grid-template-columns:1fr;gap:4px}.about-table dd{font-size:16px}.about-profile{grid-template-columns:1fr;gap:20px}.about-copy h3{font-size:26px}.company-info{width:22px;height:22px}}

/* 2026 update: icon size, About typography/photo, and card reveal animation */
.header-icons{gap:10px}
.icon-button,.mail{width:30px;height:30px}
.company-info{width:20px;height:20px;margin-left:6px}

.about-table div{grid-template-columns:135px 1fr;padding:8px 0}
.about-table dt{font-size:13px;font-weight:400;letter-spacing:.03em}
.about-table dd{font-size:15px;font-weight:400;letter-spacing:.03em}
.about-table{margin-bottom:28px}

.about-profile{grid-template-columns:34% 1fr;gap:22px;align-items:start}
.about-photo{aspect-ratio:1/1;justify-self:start;width:100%;max-width:255px}
.about-copy{padding-top:0}
.about-role{font-size:13px;font-weight:500;margin:0 0 0;line-height:1.25}
.about-copy h3{font-weight:600;font-size:28px;margin:2px 0 12px;letter-spacing:.055em}

.contents .card{opacity:0;transform:translateY(42px);transition:opacity .85s ease,transform .85s cubic-bezier(.22,1,.36,1);will-change:opacity,transform}
.contents .card.is-visible{opacity:1;transform:translateY(0)}

@media (prefers-reduced-motion: reduce){
  .contents .card{opacity:1;transform:none;transition:none}
}

@media (max-width:620px){
  .header-icons{gap:8px}
  .icon-button,.mail{width:28px;height:28px}
  .company-info{width:19px;height:19px}
  .about-table div{grid-template-columns:1fr;padding:8px 0}
  .about-table dt{font-size:12px}
  .about-table dd{font-size:14px}
  .about-profile{grid-template-columns:1fr;gap:18px}
  .about-photo{width:min(68vw,255px)}
  .about-copy h3{font-size:25px}
}

.news-item img,.topic-item img,.work-item img{width:80%;max-width:80%;display:block;margin:0 auto;}
.news-item,.topic-item,.work-item{max-width:85%;margin-left:auto;margin-right:auto;}

/* Contact modal */
.contact-modal{width:min(92%,760px);max-height:90vh;border:1px solid rgba(255,255,255,.7);padding:0;background:#080808;color:#fff;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif;overflow:auto}.contact-modal::backdrop{background:rgba(0,0,0,.82)}.contact-close{position:absolute;right:12px;top:12px;z-index:2;border:2px solid #fff;background:#080808;color:#fff;border-radius:50%;width:30px;height:30px;cursor:pointer;font:700 22px/24px Arial,sans-serif}.contact-inner{padding:40px 46px 38px}.contact-inner h2{margin:0 0 12px;font-size:30px;letter-spacing:.04em}.contact-lead{margin:0 0 24px;font-size:13px;line-height:1.7;color:#ddd}.required-mark,.form-field em{display:inline-block;background:#fff;color:#080808;font-style:normal;font-size:10px;line-height:1;padding:4px 6px;margin-left:5px;vertical-align:middle}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 20px}.form-field{display:grid;gap:7px;font-size:13px;font-weight:500}.form-field-wide{grid-column:1/-1}.form-field input,.form-field textarea{box-sizing:border-box;width:100%;border:1px solid #777;border-radius:0;background:#fff;color:#111;padding:11px 12px;font:16px/1.5 "Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif;outline:none}.form-field textarea{resize:vertical;min-height:150px}.form-field input:focus,.form-field textarea:focus{border-color:#fff;box-shadow:0 0 0 2px rgba(255,255,255,.25)}.form-field input.is-invalid,.form-field textarea.is-invalid{border-color:#ff7a7a;box-shadow:0 0 0 2px rgba(255,80,80,.25)}.form-trap{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.form-status{min-height:1.6em;margin:18px 0 10px;font-size:13px;line-height:1.6}.form-status.is-error{color:#ff9b9b}.form-status.is-success{color:#a9efb5}.form-submit{display:block;min-width:180px;margin:0 auto;border:1px solid #fff;background:#fff;color:#080808;padding:12px 28px;font:700 14px/1.2 "Yu Gothic","Hiragino Kaku Gothic ProN","Meiryo",sans-serif;cursor:pointer;transition:background .2s,color .2s}.form-submit:hover{background:#080808;color:#fff}.form-submit:disabled{opacity:.55;cursor:wait}
@media (max-width:620px){.contact-inner{padding:34px 22px 28px}.contact-inner h2{font-size:26px}.form-grid{grid-template-columns:1fr;gap:15px}.form-field-wide{grid-column:auto}.contact-modal{max-height:92vh}.form-submit{width:100%}}