/* TERASU 見本15（CINRA風）：白地・黒文字・細い書体・静かに浮かび上がる動き */
:root{
  --ink:#111;
  --sub:#666;
  --line:#ddd;
  --bg:#fff;
  --pale:#f4f4f2;
  --navy:#0F1E3D;
  --gold:#C9A24B;
  --en:"Inter Tight","Helvetica Neue",Arial,sans-serif;
  --ja:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --gut:clamp(20px,5vw,72px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--ja);font-weight:400;font-size:15px;line-height:1.9;letter-spacing:.04em;-webkit-font-smoothing:antialiased}
main{overflow-x:clip}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,p,dl,dd,figure{margin:0}
.ph{display:inline-block}
.pc{display:inline}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--gut)}

/* ---------- ボタン ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 28px;border-radius:4px;font-size:14px;font-weight:500;letter-spacing:.06em;transition:background .4s var(--ease),color .4s var(--ease),border-color .4s var(--ease);text-align:center;line-height:1.5}
.btn--s{min-height:36px;padding:0 18px;font-size:12px;font-weight:700}
.btn--fill{background:var(--ink);color:#fff;border:1px solid var(--ink)}
.btn--fill:hover{background:var(--navy);border-color:var(--navy)}
.btn--line{background:#fff;color:var(--ink);border:1px solid var(--ink)}
.btn--line:hover{background:var(--ink);color:#fff}

/* ---------- ヘッダー ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;height:72px;display:flex;align-items:center;gap:32px;padding:0 var(--gut);background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:transform .6s var(--ease)}
.site-header.is-hidden{transform:translateY(-100%)}
.logo{display:inline-flex;gap:.42em;font-family:var(--en);font-weight:300;font-size:24px;letter-spacing:0;line-height:1}
.logo span:nth-child(3){font-weight:500}

.gnav{margin-left:auto}
.gnav ul{display:flex;gap:28px}
.gnav a{font-size:13px;position:relative;padding:4px 0}
.gnav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .5s var(--ease)}
.gnav a:hover::after{transform:scaleX(1);transform-origin:left}
.head-btns{display:flex;gap:10px}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border:0;background:none;position:relative;cursor:pointer}
.menu-btn span{position:absolute;left:10px;right:10px;height:1px;background:var(--ink);transition:transform .5s var(--ease),top .5s var(--ease)}
.menu-btn span:first-child{top:18px}.menu-btn span:last-child{top:26px}
.menu-open .menu-btn span:first-child{top:22px;transform:rotate(25deg)}
.menu-open .menu-btn span:last-child{top:22px;transform:rotate(-25deg)}

.drawer{position:fixed;inset:0;z-index:45;background:#fff;padding:100px 24px 40px;overflow-y:auto;opacity:0;visibility:hidden;transition:opacity .5s var(--ease),visibility .5s}
.menu-open .drawer{opacity:1;visibility:visible}
.drawer li{border-bottom:1px solid var(--line);opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.menu-open .drawer li{opacity:1;transform:none}
.menu-open .drawer li:nth-child(2){transition-delay:.05s}.menu-open .drawer li:nth-child(3){transition-delay:.1s}.menu-open .drawer li:nth-child(4){transition-delay:.15s}.menu-open .drawer li:nth-child(5){transition-delay:.2s}
.drawer a{display:block;padding:16px 0;font-size:15px}
.drawer em{display:block;font-style:normal;font-family:var(--en);font-size:28px;font-weight:300;line-height:1.2;letter-spacing:0}
.drawer-btns{display:grid;gap:12px;margin-top:32px}
body.menu-open{overflow:hidden}

/* ---------- HERO ---------- */
.hero{position:relative}
.hero-pin{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:110px var(--gut) 80px}
.hero-inner{width:100%;max-width:1240px;margin:0 auto;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,6vw,96px);align-items:center}
.hero-visual{position:relative;aspect-ratio:1/1;width:100%;max-width:520px}
.hero-aura{position:absolute;inset:0;overflow:hidden;background:#eee}
.hero-aura::before,.hero-aura::after{content:"";position:absolute;inset:-30%;background:
  radial-gradient(40% 40% at 25% 30%,#f6d2c9 0%,transparent 70%),
  radial-gradient(45% 45% at 75% 25%,#cfe3dc 0%,transparent 70%),
  radial-gradient(40% 40% at 70% 80%,#e9d9a8 0%,transparent 70%),
  radial-gradient(45% 45% at 20% 80%,#d6d8ef 0%,transparent 70%);
  filter:blur(18px);animation:aura 14s linear infinite}
.hero-aura::after{mix-blend-mode:multiply;opacity:.5;animation-duration:22s;animation-direction:reverse}
@keyframes aura{to{transform:rotate(360deg)}}
.hero-photos{position:absolute;inset:6.5%;overflow:hidden;background:#ddd}
.hp{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05);clip-path:inset(100% 0 0 0);transition:clip-path 1.2s var(--ease)}
.hp.is-on{clip-path:inset(0 0 0 0);z-index:2}
.hp.was-on{clip-path:inset(0 0 0 0);z-index:1}
.hero-count{position:absolute;right:-28px;top:0;display:grid;gap:6px;font-family:var(--en);font-size:11px;color:#bbb}
.hero-count li{transition:color .6s}
.hero-count li.is-on{color:var(--ink)}
.hero-en{font-family:var(--en);font-weight:300;font-size:14px;letter-spacing:.12em;color:var(--sub);margin-bottom:18px}
.hero-title{font-weight:400;font-size:clamp(28px,3.9vw,54px);line-height:1.5;letter-spacing:.04em}
.hero-lead{margin-top:28px;font-size:14px;color:#333;max-width:40em}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-note{margin-top:14px;font-size:12px;color:var(--sub)}
.scroll-hint{position:absolute;right:var(--gut);bottom:28px;display:flex;align-items:center;gap:12px;font-family:var(--en);font-size:11px;letter-spacing:.14em;color:var(--sub)}
.scroll-hint i{display:block;width:64px;height:1px;background:#ccc;position:relative;overflow:hidden}
.scroll-hint i::after{content:"";position:absolute;inset:0;background:var(--ink);animation:hint 2.4s var(--ease) infinite}
@keyframes hint{0%{transform:translateX(-100%)}60%,100%{transform:translateX(100%)}}

/* ---------- セクション共通 ---------- */
.sec{padding:clamp(96px,12vw,180px) 0 0}
.sec-head{display:flex;align-items:baseline;gap:20px;margin-bottom:clamp(28px,4vw,48px)}
.sec-en{font-family:var(--en);font-weight:300;font-size:clamp(44px,6vw,84px);line-height:1;letter-spacing:-.01em}
.sec-ja{font-size:13px;color:var(--sub)}
.sec-intro{font-size:15px;max-width:44em;margin-bottom:clamp(40px,5vw,64px)}
.more{margin-top:48px;text-align:center}
.more .btn{min-width:240px}

/* 浮かぶ写真の枠 */
.float-img{overflow:hidden;background:var(--pale)}
.float-img img{width:100%;height:100%;object-fit:cover;transform:scale(1.12);transition:opacity .6s var(--ease)}
.no-anim .float-img img{transform:none}

/* ---------- SERVICE ---------- */
.svc-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.svc-link{display:block}
.svc-img{aspect-ratio:10/7}
.svc-link:hover .svc-img img,.work-link:hover .work-img img{opacity:.82}
.svc-no{font-family:var(--en);font-size:13px;margin-top:22px;color:var(--sub)}
.svc-title{font-size:19px;font-weight:500;line-height:1.6;margin-top:6px}
.svc-en{display:block;font-family:var(--en);font-weight:400;font-size:12px;letter-spacing:.12em;color:var(--gold)}
.svc-text{font-size:14px;color:#444;margin-top:12px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tags li{font-size:12px;border:1px solid var(--line);padding:2px 12px;border-radius:99px}

.flow{margin-top:clamp(56px,7vw,96px);border-top:1px solid var(--ink);padding-top:28px}
.flow-label,.others-label{font-size:13px;color:var(--sub);margin-bottom:18px}
.flow ol{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}
.flow li{position:relative;padding:18px 20px 18px 0;font-size:14px;line-height:1.7}
.flow li span{display:block;font-family:var(--en);font-weight:300;font-size:36px;line-height:1;margin-bottom:10px}
.flow li:not(:last-child)::after{content:"";position:absolute;right:14px;top:34px;width:18px;height:1px;background:var(--ink)}
.others{margin-top:40px;display:flex;gap:28px;align-items:baseline;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px}
.others-label{margin:0}
.others ul{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:14px}
.others li::before{content:"— ";color:#aaa}

/* ---------- WORKS ---------- */
.work-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,3vw,44px)}
.work:nth-child(2){margin-top:80px}
.work:nth-child(3){margin-top:160px}
.work-link{display:block}
.work-img{aspect-ratio:3/2}
.work-body{padding-top:20px}
.work-cat{font-size:12px;color:var(--sub)}
.work-title{font-size:18px;font-weight:500;margin-top:4px}
.work-period{font-size:12px;color:var(--sub)}
.nums{margin-top:16px;border-top:1px solid var(--line)}
.nums div{padding:12px 0;border-bottom:1px solid var(--line)}
.nums dt{font-size:12px;color:var(--sub);line-height:1.6}
.nums dd{font-family:var(--en);line-height:1.2;margin-top:4px}
.nums b{font-weight:300;font-size:38px;letter-spacing:-.01em}
.nums .unit,.nums .small{font-family:var(--ja);font-size:13px;margin-left:2px}
.note{margin-top:40px;font-size:12px;color:var(--sub)}

/* ---------- MEDIA バナー ---------- */
.media{padding-top:clamp(96px,12vw,180px)}
.media-box{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);background:var(--ink);color:#fff;transition:background .6s var(--ease)}
.media-box:hover{background:var(--navy)}
.media-img{aspect-ratio:1/1}
.media-img img{filter:grayscale(.2)}
.media-body{position:relative;padding:clamp(28px,5vw,72px)}
.media-en{font-family:var(--en);font-size:12px;letter-spacing:.14em;color:var(--gold)}
.media-title{font-size:clamp(22px,2.6vw,32px);font-weight:400;margin-top:10px;line-height:1.5}
.media-text{font-size:14px;margin-top:18px;color:#ddd;max-width:30em}
.media-id{font-family:var(--en);font-size:13px;margin-top:18px;color:#aaa}
.media-arrow{position:absolute;right:clamp(24px,4vw,56px);bottom:clamp(24px,4vw,56px);width:56px;height:56px;border:1px solid rgba(255,255,255,.5);border-radius:50%;transition:transform .6s var(--ease)}
.media-arrow::before{content:"";position:absolute;left:18px;top:27px;width:18px;height:1px;background:#fff}
.media-arrow::after{content:"";position:absolute;left:30px;top:23px;width:8px;height:8px;border-top:1px solid #fff;border-right:1px solid #fff;transform:rotate(45deg)}
.media-box:hover .media-arrow{transform:translateX(8px)}

/* ---------- NEWS ---------- */
.news-list{border-top:1px solid var(--ink)}
.news-list li{border-bottom:1px solid var(--line)}
.news-list a{display:grid;grid-template-columns:120px 100px minmax(0,1fr);gap:16px;padding:26px 0;align-items:baseline;transition:padding .5s var(--ease)}
.news-list a:hover{padding-left:12px}
.news-list time{font-family:var(--en);font-size:13px;color:var(--sub)}
.news-cat{font-size:11px;border:1px solid var(--line);border-radius:99px;text-align:center;padding:0 10px;justify-self:start}
.news-title{font-size:15px}

/* ---------- MESSAGE ---------- */
.message-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(32px,6vw,100px);align-items:start}
.message-head .sec-ja{margin-top:12px}
.message-img{aspect-ratio:4/5;margin-top:36px;max-width:380px}
.message-body{padding-top:8px}
.message-catch{font-size:clamp(20px,2.4vw,30px);line-height:1.7;margin-bottom:32px}
.message-body p+p{margin-top:20px}
.sign{text-align:right;font-size:13px;color:var(--sub);margin-top:36px!important}
.sign span{font-size:20px;color:var(--ink);margin-left:16px;letter-spacing:.18em}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.contact-box{position:relative;display:block;padding:clamp(28px,4vw,56px);border:1px solid var(--ink);overflow:hidden;isolation:isolate}
.contact-box::before{content:"";position:absolute;inset:0;background:var(--ink);transform:scaleY(0);transform-origin:bottom;transition:transform .7s var(--ease);z-index:-1}
.contact-box:hover{color:#fff}
.contact-box:hover::before{transform:scaleY(1)}
.cb-en{font-family:var(--en);font-weight:300;font-size:clamp(26px,3vw,40px);line-height:1.1}
.contact-box h3{font-size:16px;font-weight:500;margin-top:10px}
.cb-btn{display:inline-flex;margin-top:32px;font-size:13px;border-bottom:1px solid currentColor;padding-bottom:4px}

/* ---------- 流れるコピー ---------- */
.loop{padding:clamp(96px,12vw,180px) 0 clamp(48px,6vw,80px);overflow:hidden}
.loop-track{display:flex;width:max-content;white-space:nowrap;animation:loop 50s linear infinite}
.loop-track span{font-size:clamp(40px,7vw,104px);font-weight:300;padding-right:.8em;line-height:1.3}
.loop-track .en{font-family:var(--en);color:transparent;-webkit-text-stroke:1px var(--ink)}
@keyframes loop{to{transform:translateX(-50%)}}

/* ---------- フッター ---------- */
.site-footer{border-top:1px solid var(--line);padding:64px 0 90px}
.foot-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:40px}
.foot-addr{font-size:12px;color:var(--sub);margin-top:18px;line-height:1.8}
.foot-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 24px;font-size:13px}
.foot-nav a:hover{text-decoration:underline}
.copy{font-family:var(--en);font-size:11px;color:var(--sub);margin-top:56px}

.sample-badge{position:fixed;left:12px;bottom:12px;z-index:60;margin:0;background:rgba(17,17,17,.88);color:#fff;font-size:12px;line-height:1.4;padding:7px 12px;border-radius:999px;letter-spacing:.04em;pointer-events:none}

/* ---------- 動き用の初期状態（JSが動く時だけ隠す） ---------- */
.js .fade-up{opacity:0;transform:translateY(36px)}
.js .float-img{clip-path:inset(12% 0 0 0);opacity:0}
.js [data-split]{visibility:hidden}
.js [data-split].is-split{visibility:visible}
.char{display:inline-block;will-change:transform}
.no-anim .fade-up,.no-anim .float-img{opacity:1!important;transform:none!important;clip-path:none!important}
.no-anim [data-split]{visibility:visible!important}
.no-anim .char{opacity:1!important;transform:none!important}

/* ---------- タブレット・スマホ ---------- */
@media (max-width:1080px){
  .gnav,.head-btns{display:none}
  .menu-btn{display:block}
}
@media (max-width:820px){
  .pc{display:none}
  .site-header{height:60px}
  .logo{font-size:20px}
  .hero-pin{padding:84px var(--gut) 72px;align-items:flex-start}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-visual{max-width:none;width:78%}
  .hero-count{right:-24px}
  .hero-title{font-size:clamp(26px,7.4vw,40px)}
  .hero-btns .btn{width:100%}
  .scroll-hint{display:none}
  .svc-tabs,.work-list{grid-template-columns:1fr;gap:48px}
  .work:nth-child(2),.work:nth-child(3){margin-top:0}
  .flow ol{grid-template-columns:1fr}
  .flow li{display:flex;align-items:center;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
  .flow li span{margin:0;font-size:28px;width:32px}
  .flow li::after{display:none}
  .media-box{grid-template-columns:1fr}
  .media-img{aspect-ratio:16/10}
  .media-body{padding-bottom:96px}
  .news-list a{grid-template-columns:auto 1fr;gap:6px 14px}
  .news-title{grid-column:1/-1}
  .message-grid{grid-template-columns:1fr}
  .message-img{max-width:none;aspect-ratio:4/3}
  .contact-grid{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr}
  .foot-nav{grid-template-columns:repeat(2,minmax(0,1fr));font-size:12px;gap:10px 12px}
  .foot-nav a{white-space:nowrap}
  .sec-head{flex-wrap:wrap;gap:8px 16px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .fade-up,.js .float-img{opacity:1;transform:none;clip-path:none}
  .js [data-split]{visibility:visible}
  .float-img img{transform:none}
}