:root{--white:#fff;--black:#0a0a0a;--navy:#1e3a5f;--navy-dark:#0a1628;--gold:#c8a96e;--text:#1a1a1a;--text-light:#666;--border:#e5e5e5;--bg:#f7f7f5}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans JP','Inter',sans-serif;color:var(--text);background:var(--white);line-height:1.7;overflow-x:hidden}

/* ===== HEADER ===== */
header{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:18px 0;transition:all .4s}
header.sc{background:var(--white);box-shadow:0 2px 20px rgba(0,0,0,.07);padding:12px 0}
.hi{max-width:1200px;margin:0 auto;padding:0 40px;display:flex;align-items:center;justify-content:space-between}
.lw{position:relative;height:42px;width:170px}
.lw img{position:absolute;top:0;left:0;height:42px;width:auto;transition:opacity .4s;object-fit:contain}
.lw .lw{opacity:1}.lw .lc{opacity:0}
header.sc .lw .lw{opacity:0}header.sc .lw .lc{opacity:1}
nav a{text-decoration:none;font-size:12px;font-weight:500;letter-spacing:.1em;color:rgba(255,255,255,.85);transition:color .3s;font-family:'Inter',sans-serif;text-transform:uppercase;margin-left:28px}
nav a:hover{color:var(--gold)}
header.sc nav a{color:var(--navy)}
header.sc nav a:hover{color:var(--gold)}
.hb{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hb span{display:block;width:24px;height:2px;background:white;transition:all .3s}
header.sc .hb span{background:var(--navy)}

/* ===== HERO ===== */
#top{position:relative;height:100vh;min-height:600px;background:var(--black);display:flex;align-items:center;justify-content:center;overflow:hidden}
.hbg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38}
.hov{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,22,40,.65) 0%,rgba(10,10,10,.25) 100%)}
.hc{position:relative;z-index:2;text-align:center;padding:0 20px;color:#fff}
.he{font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:22px;opacity:0;animation:fu .8s .3s forwards}
.ht{font-size:clamp(34px,5.5vw,76px);font-weight:700;letter-spacing:.04em;line-height:1.1;margin-bottom:18px;font-family:'Inter',sans-serif;opacity:0;animation:fu .8s .5s forwards}
.ht span{color:var(--gold)}
.hs{font-size:clamp(17px,2.2vw,26px);font-weight:300;letter-spacing:.06em;color:rgba(255,255,255,.88);margin-bottom:36px;opacity:0;animation:fu .8s .7s forwards}
.hb2{max-width:640px;margin:0 auto 44px;font-size:14px;color:rgba(255,255,255,.65);line-height:2;opacity:0;animation:fu .8s .9s forwards}
.hbtn{display:inline-block;padding:14px 40px;border:1px solid var(--gold);color:var(--gold);font-size:11px;letter-spacing:.22em;text-transform:uppercase;text-decoration:none;font-family:'Inter',sans-serif;transition:all .3s;opacity:0;animation:fu .8s 1.1s forwards}
.hbtn:hover{background:var(--gold);color:var(--black)}
.si{position:absolute;bottom:36px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;opacity:0;animation:fu .8s 1.4s forwards}
.si span{font-size:9px;letter-spacing:.22em;color:rgba(255,255,255,.45);text-transform:uppercase;font-family:'Inter',sans-serif}
.sl{width:1px;height:46px;background:linear-gradient(to bottom,var(--gold),transparent);animation:sp 2s infinite}

/* ===== COMMON ===== */
section{padding:96px 0}
.con{max-width:1200px;margin:0 auto;padding:0 40px}
.slbl{font-family:'Inter',sans-serif;font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:14px;display:block}
.stit{font-size:clamp(26px,3.8vw,46px);font-weight:700;line-height:1.2;margin-bottom:22px;letter-spacing:-.01em}
.slead{font-size:15px;color:var(--text-light);line-height:1.9;max-width:620px}
.rv{opacity:0;transform:translateY(28px);transition:all .8s cubic-bezier(.16,1,.3,1)}
.rv.vis{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}
.div{width:44px;height:3px;background:var(--gold);margin:0 0 44px}

/* ===== ABOUT ===== */
#about{background:var(--white)}
.ag{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ai{border-radius:2px;overflow:hidden;border:1px solid var(--border)}
.ai img{width:100%;height:200px;object-fit:cover;display:block;transition:transform .6s}
.ai:hover img{transform:scale(1.04)}
.ai.main{grid-column:1/-1}
.ai.main img{height:280px}

/* ===== SERVICE ===== */
#service{background:var(--bg)}
.sh{margin-bottom:56px}
.sg{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.sc2{background:var(--white);border:1px solid var(--border);overflow:hidden;transition:all .4s}
.sc2:hover{box-shadow:0 14px 44px rgba(0,0,0,.09);transform:translateY(-4px)}
.sim{overflow:hidden;aspect-ratio:16/9}
.sim img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.sc2:hover .sim img{transform:scale(1.05)}
.sb{padding:26px}
.sn{font-family:'Inter',sans-serif;font-size:10px;letter-spacing:.22em;color:var(--gold);font-weight:600;margin-bottom:10px}
.se{font-family:'Inter',sans-serif;font-size:15px;font-weight:700;letter-spacing:.02em;margin-bottom:5px}
.sja{font-size:12px;color:var(--text-light);margin-bottom:14px}
.sdesc{font-size:13px;color:var(--text-light);line-height:1.8}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.tag{font-size:10px;padding:3px 10px;border:1px solid var(--border);color:var(--text-light);font-family:'Inter',sans-serif;letter-spacing:.05em}

/* ===== TECHNOLOGY ===== */
#technology{background:var(--navy-dark);color:#fff}
#technology .stit{color:#fff}
#technology .slead{color:rgba(255,255,255,.62)}
#technology .div{background:var(--gold)}
.tg{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:56px}
.tfs{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.tf{padding:22px;border:1px solid rgba(255,255,255,.1);transition:border-color .3s}
.tf:hover{border-color:var(--gold)}
.tfi{font-size:26px;margin-bottom:10px}
.tft{font-family:'Inter',sans-serif;font-size:13px;font-weight:600;letter-spacing:.05em;margin-bottom:5px;color:#fff}
.tfd{font-size:12px;color:rgba(255,255,255,.52);line-height:1.7}
.tis{display:grid;gap:18px}
.ti{overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.ti img{width:100%;display:block;transition:transform .6s}
.ti:hover img{transform:scale(1.03)}
.tbadge{display:inline-block;padding:7px 18px;background:var(--gold);color:var(--black);font-size:20px;font-weight:800;letter-spacing:.05em;font-family:'Inter',sans-serif;margin-bottom:22px}

/* ===== PROJECT ===== */
#project{background:var(--white)}
.pg{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:56px}
.pc{border:1px solid var(--border);overflow:hidden;transition:all .4s}
.pc:hover{box-shadow:0 12px 38px rgba(0,0,0,.08);transform:translateY(-4px)}
.pim{overflow:hidden;aspect-ratio:4/3}
.pim img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.pc:hover .pim img{transform:scale(1.05)}
.pb{padding:22px}
.ptag{font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);font-family:'Inter',sans-serif;margin-bottom:8px}
.pname{font-size:17px;font-weight:700;margin-bottom:8px}
.pdesc{font-size:12px;color:var(--text-light);line-height:1.8}

/* ===== PARTNERSHIP ===== */
#partnership{background:var(--navy);color:#fff}
#partnership .stit{color:#fff}
#partnership .slead{color:rgba(255,255,255,.68)}
#partnership .div{background:var(--gold)}
.pri{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.pimg{border:1px solid rgba(255,255,255,.14);overflow:hidden}
.pimg img{width:100%;display:block}
.pty{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px}
.pt{padding:18px;border:1px solid rgba(255,255,255,.14);transition:border-color .3s}
.pt:hover{border-color:var(--gold)}
.ptt{font-family:'Inter',sans-serif;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--gold);margin-bottom:5px}
.ptd{font-size:12px;color:rgba(255,255,255,.62)}

/* ===== COMPANY ===== */
#company{background:var(--bg)}
.ctbl{width:100%;border-collapse:collapse;margin-top:44px}
.ctbl tr{border-bottom:1px solid var(--border)}
.ctbl tr:first-child{border-top:1px solid var(--border)}
.ctbl th{width:200px;padding:18px 22px;text-align:left;font-size:12px;font-weight:500;color:var(--text-light);vertical-align:top;font-family:'Inter',sans-serif;letter-spacing:.04em}
.ctbl td{padding:18px 22px;font-size:13px;line-height:1.8}

/* ===== MESSAGE ===== */
#message{background:var(--white)}
.mi{display:grid;grid-template-columns:160px 1fr;gap:64px;align-items:start}
.mlb{text-align:center}
.mdv{width:1px;height:100px;background:var(--gold);margin:16px auto 0}
.mtxt{font-size:15px;line-height:2.1}
.mtxt p{margin-bottom:22px}
.msign{margin-top:36px;padding-top:28px;border-top:1px solid var(--border)}
.msign-t{font-size:11px;color:var(--text-light);letter-spacing:.1em;margin-bottom:5px;font-family:'Inter',sans-serif;text-transform:uppercase}
.msign-n{font-size:19px;font-weight:700}

/* ===== NEWS ===== */
#news{background:var(--bg)}
.nem{padding:56px 0;text-align:center;color:var(--text-light);font-size:14px}

/* ===== J-BREAK NEWS ===== */
.jb-news{
  background:var(--white);
}

.jb-news__inner{
  max-width:980px;
  margin:0 auto;
}

.jb-news__head{
  margin-bottom:52px;
}

.jb-news__list{
  border-top:1px solid var(--border);
}

.jb-news__item{
  display:grid;
  grid-template-columns:140px 1fr;
  gap:32px;
  padding:32px 0;
  border-bottom:1px solid var(--border);
}

.jb-news__meta{
  padding-top:2px;
}

.jb-news__date{
  display:inline-block;
  font-family:'Inter',sans-serif;
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--gold);
  text-transform:uppercase;
}

.jb-news__content{
  min-width:0;
}

.jb-news__title{
  margin:0 0 14px;
  font-size:22px;
  font-weight:700;
  line-height:1.45;
  color:var(--text);
}

.jb-news__text{
  font-size:14px;
  line-height:2;
  color:var(--text-light);
}

.jb-news__text p + p{
  margin-top:12px;
}

.jb-news__link{
  color:var(--navy);
  text-decoration:underline;
  text-underline-offset:3px;
  word-break:break-all;
  transition:opacity .3s ease;
}

.jb-news__link:hover{
  opacity:.75;
}

@media(max-width:768px){
  .jb-news__head{
    margin-bottom:36px;
  }

  .jb-news__item{
    grid-template-columns:1fr;
    gap:12px;
    padding:24px 0;
  }

  .jb-news__title{
    font-size:18px;
    line-height:1.5;
  }

  .jb-news__text{
    font-size:13px;
    line-height:1.9;
  }

  .jb-news__date{
    font-size:11px;
    letter-spacing:.12em;
  }
}
/* ===== CONTACT ===== */
#contact{background:var(--black);color:#fff}
#contact .stit{color:#fff}
#contact .div{background:var(--gold)}
.cg{display:grid;grid-template-columns:1fr 1.6fr;gap:72px;align-items:start;margin-top:44px}
.ci{margin-bottom:24px}
.cil{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-family:'Inter',sans-serif;margin-bottom:5px}
.civ{font-size:14px;color:rgba(255,255,255,.75);line-height:1.7}
.cf input,.cf textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;padding:13px 16px;font-size:13px;font-family:'Noto Sans JP',sans-serif;outline:none;transition:border-color .3s;margin-bottom:14px;border-radius:0}
.cf input::placeholder,.cf textarea::placeholder{color:rgba(255,255,255,.28)}
.cf input:focus,.cf textarea:focus{border-color:var(--gold)}
.cf textarea{height:130px;resize:vertical}
.csub{width:100%;padding:14px;background:var(--gold);color:var(--black);font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;border:none;cursor:pointer;font-family:'Inter',sans-serif;transition:opacity .3s}
.csub:hover{opacity:.85}

/* ===== FOOTER ===== */
footer{background:#050505;color:rgba(255,255,255,.35);padding:36px 0;text-align:center}
.fl{margin-bottom:16px}.fl img{height:28px;opacity:.55}
footer p{font-size:11px;letter-spacing:.06em;font-family:'Inter',sans-serif}

/* ===== MOBILE MENU ===== */
.mm{display:none;position:fixed;inset:0;background:var(--white);z-index:999;flex-direction:column;align-items:center;justify-content:center;gap:28px}
.mm.open{display:flex}
.mm a{text-decoration:none;font-size:18px;font-weight:500;color:var(--navy);letter-spacing:.1em;font-family:'Inter',sans-serif;text-transform:uppercase}
.mmc{position:absolute;top:22px;right:28px;font-size:26px;cursor:pointer;color:var(--navy)}

/* ===== ANIMATIONS ===== */
@keyframes fu{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes sp{0%,100%{opacity:1}50%{opacity:.15}}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .ag,.tg,.pri,.mi{grid-template-columns:1fr}
  .tg .tis{order:-1}
  .sg,.pg{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  section{padding:68px 0}
  .con{padding:0 22px}
  .hi{padding:0 22px}
  nav{display:none}
  .hb{display:flex}
  .sg,.pg,.pty,.tfs,.ai-grid{grid-template-columns:1fr}
  .cg{grid-template-columns:1fr}
  .ctbl th{width:110px}
  .mi{grid-template-columns:1fr}
  .mlb{display:flex;align-items:center;gap:14px;margin-bottom:28px}
  .mdv{width:36px;height:1px;margin:0}
}

/* ===== J-BREAK TRADEMARK ===== */
#jb-trademark{
  background:var(--bg);
}

.jb-trademark__head{
  margin-bottom:56px;
}

.jb-trademark__grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:28px;
  align-items:stretch;
}

.jb-trademark-card{
  display:flex;
  flex-direction:column;
  min-height:100%;
  background:var(--white);
  border:1px solid var(--border);
  overflow:hidden;
  transition:all .4s;
}

.jb-trademark-card:hover{
  box-shadow:0 14px 44px rgba(0,0,0,.09);
  transform:translateY(-4px);
}

.jb-trademark-card__logo-wrap{
  padding:26px 26px 0;
}

.jb-trademark-card__logo-box{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:150px;
  padding:20px 24px;
  background:#faf9f7;
  border:1px solid var(--border);
}

.jb-trademark-card__logo-image{
  display:block;
  width:auto;
  height:auto;
  max-width:100%;
  object-fit:contain;
}

.jb-trademark-card__logo-image--springfoam{
  max-width:300px;
  max-height:76px;
}

.jb-trademark-card__logo-image--gramix{
  max-width:240px;
  max-height:72px;
}

.jb-trademark-card__body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:24px 26px 0;
}

.jb-trademark-card__eyebrow{
  font-size:10px;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--gold);
  font-family:'Inter',sans-serif;
  font-weight:600;
  margin-bottom:10px;
}

.jb-trademark-card__title{
  font-size:22px;
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
  font-family:'Inter',sans-serif;
  color:var(--text);
}

.jb-trademark-card__text{
  font-size:13px;
  color:var(--text-light);
  line-height:1.9;
}

.jb-trademark-card__foot{
  padding:24px 26px 28px;
  margin-top:auto;
}

.jb-trademark-card__button{
  display:inline-block;
  padding:13px 22px;
  border:1px solid var(--navy);
  color:var(--navy);
  text-decoration:none;
  font-size:11px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-family:'Inter',sans-serif;
  transition:all .3s;
}

.jb-trademark-card__button:hover{
  background:var(--navy);
  color:var(--white);
}

@media(max-width:1024px){
  .jb-trademark-card__logo-box{
    min-height:136px;
  }

  .jb-trademark-card__logo-image--springfoam{
    max-width:260px;
    max-height:68px;
  }

  .jb-trademark-card__logo-image--gramix{
    max-width:215px;
    max-height:66px;
  }
}

@media(max-width:768px){
  .jb-trademark__head{
    margin-bottom:36px;
  }

  .jb-trademark__grid{
    grid-template-columns:1fr;
    gap:18px;
  }

  .jb-trademark-card__logo-wrap{
    padding:20px 20px 0;
  }

  .jb-trademark-card__logo-box{
    min-height:120px;
    padding:16px 18px;
  }

  .jb-trademark-card__body{
    padding:20px 20px 0;
  }

  .jb-trademark-card__foot{
    padding:20px 20px 22px;
  }

  .jb-trademark-card__title{
    font-size:20px;
  }

  .jb-trademark-card__text{
    font-size:13px;
    line-height:1.8;
  }

  .jb-trademark-card__button{
    width:100%;
    text-align:center;
    letter-spacing:.1em;
  }

  .jb-trademark-card__logo-image--springfoam{
    max-width:220px;
    max-height:58px;
  }

  .jb-trademark-card__logo-image--gramix{
    max-width:190px;
    max-height:56px;
  }
}

/* ===== contact ===== */

.jb-contact-form__notice{
  margin-top:16px;
  padding:12px 14px;
  font-size:13px;
  line-height:1.7;
  border:1px solid transparent;
}

.jb-contact-form__notice--success{
  background:rgba(200,169,110,.12);
  border-color:rgba(200,169,110,.28);
  color:var(--gold);
}

.jb-contact-form__notice--error{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.18);
  color:rgba(255,255,255,.82);
}