@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;600&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root{
  --bg:#faf8f4;
  --bg-alt:#f1ede5;
  --ink:#2b2a26;
  --ink-soft:#6f6a60;
  --ink-faint:#a7a195;
  --line:#ddd6c8;
  --accent:#8a6a44;
  --accent-dark:#4a3c2a;
  --charcoal:#2c2d2b;
  --white:#ffffff;
  --maxw:1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN",sans-serif;
  color:var(--ink);
  background:var(--bg);
  font-weight:300;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:"Noto Serif JP",serif;font-weight:500;margin:0;letter-spacing:.02em;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,248,244,.96);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:84px;
}
.logo{display:flex;align-items:center;gap:10px;font-family:"Noto Serif JP",serif;font-size:19px;letter-spacing:.08em;color:var(--ink);}
.logo .mark{
  width:34px;height:34px;border:1.4px solid var(--accent);border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:12px;letter-spacing:0;
  color:var(--accent);font-family:"Noto Sans JP",sans-serif;font-weight:700;
}
.logo .en{font-size:10px;letter-spacing:.22em;color:var(--ink-soft);display:block;margin-top:2px;font-family:"Noto Sans JP",sans-serif;}
nav.main-nav{display:flex;align-items:center;gap:36px;}
nav.main-nav a{font-size:14px;letter-spacing:.04em;position:relative;padding:4px 0;}
nav.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .25s;}
nav.main-nav a:hover::after{width:100%;}
.nav-cta{
  border:1px solid var(--ink);border-radius:999px;padding:10px 22px !important;font-size:13px !important;
}
.nav-cta::after{display:none;}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:200;}
.hamburger span{width:24px;height:1.4px;background:var(--ink);display:block;}

/* mobile nav panel: fully opaque, no backdrop-filter, explicit stacking (demo-mobile-nav-bleed lesson) */
.mobile-panel{
  position:fixed;inset:0;background:#faf8f4;z-index:150;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:28px;
  transform:translateY(-100%);transition:transform .3s ease;will-change:transform;
}
.mobile-panel.open{transform:translateY(0);}
.mobile-panel a{font-size:18px;font-family:"Noto Serif JP",serif;}
.mobile-close{position:absolute;top:28px;right:28px;background:none;border:none;font-size:28px;cursor:pointer;color:var(--ink);}

@media (max-width:860px){
  nav.main-nav{display:none;}
  .hamburger{display:flex;}
}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--ink);border-radius:999px;
  padding:14px 34px;font-size:13px;letter-spacing:.08em;
  transition:background .25s,color .25s;
}
.btn:hover{background:var(--ink);color:var(--white);}
.btn.solid{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn.solid:hover{background:var(--accent-dark);border-color:var(--accent-dark);}
.btn.small{padding:10px 24px;font-size:12px;}

/* ===== hero ===== */
.hero{position:relative;height:88vh;min-height:560px;overflow:hidden;color:#fff;}
.hero img{width:100%;height:100%;object-fit:cover;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,20,18,.18),rgba(20,20,18,.52));}
.hero-copy{position:absolute;left:0;right:0;bottom:64px;z-index:2;text-align:center;}
.hero-copy .en{font-size:12px;letter-spacing:.35em;opacity:.85;margin-bottom:18px;}
.hero-copy h1{font-size:clamp(28px,4vw,44px);color:#fff;line-height:1.7;font-weight:500;}
.hero-sub{position:relative;background:var(--charcoal);color:#efece4;padding:64px 0;}

.page-hero{position:relative;height:42vh;min-height:300px;overflow:hidden;color:#fff;}
.page-hero img{width:100%;height:100%;object-fit:cover;}
.page-hero::after{content:"";position:absolute;inset:0;background:rgba(24,24,22,.46);}
.page-hero-copy{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;z-index:2;}
.page-hero-copy .en{font-size:11px;letter-spacing:.35em;opacity:.85;}
.page-hero-copy h1{font-size:clamp(24px,3.4vw,34px);color:#fff;}

/* ===== section label motif ===== */
.section{padding:108px 0;}
.section.alt{background:var(--bg-alt);}
.section.dark{background:var(--charcoal);color:#efece4;}
.section-label{
  text-align:center;margin-bottom:56px;
}
.section-label .en{
  display:block;font-family:"Noto Serif JP",serif;font-size:clamp(34px,5vw,58px);
  letter-spacing:.14em;color:var(--ink-faint);opacity:.55;margin-bottom:4px;
}
.section.dark .section-label .en{color:#5a5a54;opacity:.7;}
.section-label h2{font-size:22px;letter-spacing:.06em;}
.section-label p{color:var(--ink-soft);font-size:14px;margin-top:10px;}

/* ===== concept / about split ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;}
.split .photos{position:relative;}
.split .photos img{border-radius:2px;}
.split .photos .p1{width:72%;}
.split .photos .p2{width:52%;position:absolute;right:0;bottom:-40px;border:6px solid var(--bg);}
.split .text .label{font-size:11px;letter-spacing:.3em;color:var(--accent);margin-bottom:18px;}
.split .text h3{font-size:26px;line-height:1.8;margin-bottom:24px;}
.split .text p{color:var(--ink-soft);font-size:14.5px;margin-bottom:28px;}
@media (max-width:860px){
  .split{grid-template-columns:1fr;gap:88px 0;}
  .split .photos{margin-bottom:20px;}
}

/* ===== grids ===== */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
@media (max-width:860px){.grid3,.grid2{grid-template-columns:1fr;}}

.card{background:#fff;border:1px solid var(--line);}
.card .thumb{aspect-ratio:4/3;overflow:hidden;}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.card:hover .thumb img{transform:scale(1.05);}
.card .body{padding:24px 26px 28px;}
.card .tag{font-size:11px;letter-spacing:.14em;color:var(--accent);margin-bottom:10px;display:block;}
.card h4{font-size:16px;margin-bottom:10px;line-height:1.7;}
.card p{color:var(--ink-soft);font-size:13.5px;margin:0;}

/* ===== stats ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18);}
.stats div{text-align:center;padding:40px 10px;border-right:1px solid rgba(255,255,255,.18);}
.stats div:last-child{border-right:none;}
.stats .num{font-family:"Noto Serif JP",serif;font-size:clamp(26px,3vw,38px);color:#fff;}
.stats .num span{font-size:14px;margin-left:4px;color:#cfcabd;}
.stats .cap{font-size:12px;color:#b9b4a6;margin-top:8px;letter-spacing:.06em;}
@media (max-width:860px){.stats{grid-template-columns:repeat(2,1fr);}.stats div{border-bottom:1px solid rgba(255,255,255,.18);}}

/* ===== voice / testimonial ===== */
.voice{background:#fff;border:1px solid var(--line);padding:34px 30px;}
.voice .stars{color:var(--accent);font-size:13px;letter-spacing:3px;margin-bottom:16px;}
.voice p{font-size:14px;color:var(--ink-soft);margin-bottom:20px;}
.voice .who{font-size:12.5px;color:var(--ink-faint);border-top:1px solid var(--line);padding-top:14px;}

/* ===== steps ===== */
.steps{counter-reset:step;}
.step{display:flex;gap:28px;padding:30px 0;border-bottom:1px solid var(--line);}
.step:first-child{border-top:1px solid var(--line);}
.step .no{counter-increment:step;font-family:"Noto Serif JP",serif;font-size:13px;color:var(--accent);min-width:64px;}
.step .no::before{content:"0" counter(step);font-size:28px;display:block;color:var(--ink);}
.step h4{font-size:15.5px;margin-bottom:8px;}
.step p{color:var(--ink-soft);font-size:13.5px;margin:0;}

/* ===== footer ===== */
footer{background:var(--charcoal);color:#cfcabd;padding:76px 0 28px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:56px;}
.foot-grid h5{color:#efece4;font-size:13px;letter-spacing:.1em;margin-bottom:18px;font-weight:500;font-family:"Noto Sans JP",sans-serif;}
.foot-grid li{margin-bottom:10px;font-size:13px;}
.foot-grid li a:hover{color:#fff;}
.foot-logo{font-family:"Noto Serif JP",serif;font-size:20px;color:#efece4;margin-bottom:14px;letter-spacing:.06em;}
.foot-addr{font-size:12.5px;line-height:2;color:#a9a496;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:24px;font-size:11.5px;color:#8c8778;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr;}}

/* ===== forms ===== */
.form-tabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:48px;flex-wrap:wrap;}
.form-tab{padding:16px 28px;font-size:14px;letter-spacing:.04em;color:var(--ink-soft);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;}
.form-tab.active{color:var(--ink);border-bottom-color:var(--accent);}
.form-panel{display:none;}
.form-panel.active{display:block;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px 28px;}
.form-grid .full{grid-column:1/-1;}
.field label{display:block;font-size:12.5px;color:var(--ink-soft);margin-bottom:8px;letter-spacing:.03em;}
.field label .req{color:#a8503c;margin-left:6px;font-size:11px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:#fff;padding:13px 14px;font-size:14px;
  font-family:inherit;color:var(--ink);border-radius:2px;
}
.field textarea{resize:vertical;min-height:110px;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);}
.form-note{font-size:12px;color:var(--ink-faint);margin-top:26px;line-height:1.9;}
.radio-row{display:flex;gap:22px;flex-wrap:wrap;padding-top:6px;}
.radio-row label{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink);white-space:nowrap;flex:0 0 auto;}

.crm-note{
  background:var(--bg-alt);border:1px dashed var(--ink-faint);padding:18px 22px;font-size:12.5px;color:var(--ink-soft);
  margin-bottom:40px;line-height:1.9;
}

/* ===== faq ===== */
.faq-item{border-bottom:1px solid var(--line);padding:24px 0;}
.faq-item .q{display:flex;justify-content:space-between;gap:20px;font-size:15px;cursor:pointer;}
.faq-item .q .mark{color:var(--accent);font-family:"Noto Serif JP",serif;}
.faq-item .a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--ink-soft);font-size:13.5px;}
.faq-item.open .a{max-height:240px;padding-top:16px;}

/* ===== breadcrumb ===== */
.crumb{font-size:12px;color:var(--ink-faint);padding:22px 0;}
.crumb a:hover{color:var(--accent);}

/* ===== gallery filter ===== */
.filter-bar{display:flex;gap:10px;justify-content:center;margin-bottom:48px;flex-wrap:wrap;}
.filter-bar button{
  border:1px solid var(--line);background:#fff;padding:9px 20px;font-size:12.5px;border-radius:999px;cursor:pointer;color:var(--ink-soft);
}
.filter-bar button.active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ===== detail page ===== */
.spec-table{width:100%;border-collapse:collapse;}
.spec-table th,.spec-table td{text-align:left;padding:16px 0;border-bottom:1px solid var(--line);font-size:13.5px;}
.spec-table th{width:180px;color:var(--ink-soft);font-weight:400;}

.cta-band{background:var(--accent);color:#fff;padding:72px 0;text-align:center;}
.cta-band h3{color:#fff;font-size:24px;margin-bottom:16px;}
.cta-band p{color:#f0e6d8;font-size:14px;margin-bottom:32px;}
.cta-band .btn{border-color:#fff;}
.cta-band .btn:hover{background:#fff;color:var(--accent);}
.cta-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}