:root{--gold:#b08a5a;--gold-d:#8c6a3f;--ink:#3a3330;--mute:#6b625c;--bg:#f4f2ef;--card:#fff;--serif:"Noto Serif JP","Hiragino Mincho ProN",serif;--en:"Cormorant Garamond","Noto Serif JP",serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{font-family:var(--serif);color:var(--ink);background:var(--bg);line-height:1.8;font-size:15px;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;font-size:13px;letter-spacing:.08em;transition:.25s}
.arw{width:14px;height:1px;background:currentColor;position:relative;display:inline-block}
.arw::after{content:"";position:absolute;right:0;top:-3px;width:6px;height:6px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
.btn--gold{background:linear-gradient(135deg,#c9a87a,#9c774a);color:#fff;padding:12px 28px;box-shadow:0 4px 12px rgba(140,106,63,.3)}
.btn--gold:hover{filter:brightness(1.08)}
.btn--line{border:1px solid #b9a99a;padding:10px 40px;background:rgba(255,255,255,.6);color:var(--ink);margin-top:20px}
.btn--line:hover{background:#fff}
.btn--cta{background:linear-gradient(135deg,#cfae80,#a07c4e);color:#fff;padding:18px 56px;font-size:17px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.btn--cta:hover{filter:brightness(1.08)}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);box-shadow:0 1px 0 rgba(0,0,0,.05)}
.hd__in{max-width:1400px;margin:0 auto;height:64px;padding:0 32px;display:flex;align-items:center;gap:28px}
.logo{display:flex;flex-direction:column;line-height:1.25}
.logo__main{font-family:var(--en);font-size:22px;letter-spacing:.06em;font-weight:500}
.logo__sub{font-size:9px;color:var(--mute);letter-spacing:.04em}
.gnav{display:flex;gap:26px;margin-left:auto;font-size:12px;color:var(--mute)}
.gnav a{position:relative;padding:4px 0}
.gnav a:hover{color:var(--gold-d)}
.burger{display:none}

/* hero */
.hero{position:relative;overflow:hidden;min-height:560px;background:linear-gradient(100deg,#fbfaf8 0%,#efebe6 55%,#e4ddd5 100%)}
.hero__img{position:absolute;right:0;top:0;height:100%;width:50%}
.hero__img img{height:100%;width:100%;object-fit:cover;object-position:left center;-webkit-mask-image:linear-gradient(90deg,transparent,#000 22%);mask-image:linear-gradient(90deg,transparent,#000 22%)}
.hero__body{position:relative;z-index:2;padding-top:70px;padding-bottom:50px}
.hero__kicker{font-size:15px;letter-spacing:.2em;color:var(--mute)}
.hero__kicker span{color:#b98a5e}
.hero__logo{display:flex;align-items:center;gap:14px;margin:6px 0 16px;flex-wrap:wrap;font-weight:400}
.hero__mark{width:92px;height:44px;border:6px solid #2b2522;border-radius:50% 0 50% 0/60% 0 60% 0;position:relative;flex:none;transform:skewX(-8deg)}
.hero__mark::after{content:"";position:absolute;left:50%;top:50%;width:30px;height:30px;border:6px solid #2b2522;border-radius:50%;transform:translate(-50%,-50%) skewX(8deg);background:#f5f2ee}
.hero__name{font-family:var(--en);font-size:clamp(44px,5.2vw,68px);line-height:1;color:#1d1816}
.hero__name b{font-weight:600}
.hero__name sup{font-size:.25em;vertical-align:top}
.hero__tag{flex-basis:100%;font-family:var(--en);font-size:20px;color:#6a5f58;padding-left:106px;margin-top:-6px}
.hero__lead{font-size:clamp(28px,3.2vw,42px);line-height:1.5;font-weight:500;margin-top:30px}
.hero__sub{font-size:clamp(15px,1.6vw,20px);margin-top:14px;color:#4a413c}
.chips{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.chips li{width:100px;height:100px;border-radius:50%;background:#fff;box-shadow:0 3px 14px rgba(120,90,60,.18);display:flex;align-items:center;justify-content:center;text-align:center;font-size:11px;line-height:1.5;border:1px solid #e6d9c8;padding-top:28px;position:relative}
.chips li::before{content:"";position:absolute;top:16px;left:50%;width:24px;height:24px;margin-left:-12px;border:1.5px solid var(--gold);border-radius:50%}
.hero__script{position:absolute;right:6%;top:42%;z-index:2;font-family:var(--en);font-style:italic;font-size:34px;line-height:1.1;color:rgba(80,70,64,.55);transform:rotate(-14deg)}

/* common headings */
.sec{padding:56px 0}
.h-ja{font-size:clamp(24px,2.4vw,30px);font-weight:500;text-align:center;letter-spacing:.08em;line-height:1.4}
.h-ja--s{font-size:22px}
.en-label{display:block;font-family:var(--en);font-size:10px;letter-spacing:.3em;color:#a39a92;text-align:center;margin-bottom:26px}
.en-label--inl{display:inline;margin:0 0 0 8px;font-size:9px;letter-spacing:.2em;text-align:left}
.h-sub{font-size:20px;font-weight:500;margin-bottom:18px}
.h-en{font-family:var(--en);font-weight:500;font-size:clamp(32px,3.4vw,42px);letter-spacing:.02em;line-height:1.2}
.h-en small{font-family:var(--serif);font-size:.6em;margin-left:4px}
.fade{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}
.fade.in{opacity:1;transform:none}

/* about */
.about{position:relative;overflow:hidden;background:linear-gradient(100deg,#f7f4ef,#ebe3d9);min-height:300px}
.about__in{position:relative;z-index:2;padding-top:36px;padding-bottom:36px}
.about__txt{max-width:560px}
.about__txt .en-label{text-align:left;margin:2px 0 18px}
.about__txt p{font-size:14px;line-height:2}
.about__img{position:absolute;right:0;top:0;height:100%;width:48%}
.about__img img{width:100%;height:100%;object-fit:cover;object-position:left center;-webkit-mask-image:linear-gradient(90deg,transparent,#000 25%);mask-image:linear-gradient(90deg,transparent,#000 25%)}

/* tech */
.tech{background:#f1f0ee}
.tech__card{display:grid;grid-template-columns:1fr 60px 1fr;align-items:center;background:#fff;border-radius:6px;box-shadow:0 6px 24px rgba(0,0,0,.06);padding:26px 30px}
.tech__card article{text-align:center}
.tech h3{font-family:var(--en);font-size:clamp(28px,3vw,38px);font-weight:500;line-height:1.2}
.tech h3 em{font-style:normal;color:#c9b9a5;font-size:.8em;margin-right:8px}
.tech h3 small{display:block;font-size:.4em;font-family:var(--serif)}
.tech__cap{font-weight:600;font-size:15px;margin:10px 0 14px}
.tech__card img{margin:0 auto 12px;max-width:100%}
.tech__txt{font-size:13px;text-align:left;line-height:1.9}
.x{position:relative;width:46px;height:46px;justify-self:center}
.x::before,.x::after{content:"";position:absolute;left:50%;top:50%;width:60px;height:1px;background:#999;transform:translate(-50%,-50%) rotate(45deg)}
.x::after{transform:translate(-50%,-50%) rotate(-45deg)}

/* mech */
.mech{background:#fff}
.mech__lead{text-align:center;font-size:12.5px;color:var(--mute);margin-bottom:24px}
.mech__grid{display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center}
.mech__b{position:relative}
.mech__b p{font-size:12px;text-align:center;color:var(--mute);margin-top:12px}
.mech__b strong{color:#a5542b;font-weight:600}
.badge{position:absolute;right:-6px;top:-60px;width:112px;height:112px;border-radius:50%;background:radial-gradient(#fffdf8,#efe3cf);border:3px solid #d9bd8e;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;box-shadow:0 2px 10px rgba(0,0,0,.15);z-index:2}
.badge small{font-size:8px;letter-spacing:.1em;color:#8a6a3f}
.badge b{font-family:var(--en);font-size:30px;color:#a0793f;font-weight:500}
.badge span{font-size:10px;color:#8a6a3f}

/* features */
.feat{background:linear-gradient(180deg,#e7ddd0,#f0ebe4)}
.feat__list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat__list li{background:#fff;border-radius:4px;box-shadow:0 4px 16px rgba(0,0,0,.07);padding:14px 14px 18px;text-align:center}
.feat__list em{font-style:normal;font-family:var(--en);font-size:26px;color:#cdbca8;line-height:1}
.feat__list h3{font-size:15px;font-weight:500;line-height:1.5;margin:2px 0 10px;min-height:46px}
.feat__list img{width:100%;aspect-ratio:145/62;object-fit:cover;margin-bottom:10px}
.feat__list p{font-size:11.5px;color:var(--mute);line-height:1.7}

/* area */
.area{background:#fff;padding-bottom:44px}
.area .en-label{margin-bottom:18px}
.area__list{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;text-align:center}
.area__list img{width:min(120px,100%);aspect-ratio:1;border-radius:50%;object-fit:cover;margin:0 auto 8px;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.area__list span{font-size:12px;font-weight:600;line-height:1.4;display:block}
.area__list small{display:block;font-size:10px;font-weight:400;color:var(--mute)}

/* handpiece + flow */
.hf{background:#fff;padding-top:24px}
.hf__in{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.hp__grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hp__grid>div{background:#f8f6f3;border:1px solid #eee7de;padding:12px;border-radius:4px}
.hp__grid h3{font-size:13px;font-weight:600}
.hp__grid img{margin:6px auto;max-height:110px;object-fit:contain}
.hp__grid p{font-size:11px;color:var(--mute);line-height:1.7}
.flow__list{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.flow__list li{background:#fbf9f6;border:1px solid #eee7de;padding:8px;text-align:center;border-radius:3px}
.flow__list em{font-style:normal;font-family:var(--en);font-size:22px;color:#cdbca8;line-height:1}
.flow__list h3{font-size:12.5px;font-weight:600}
.flow__list small{display:block;font-size:9.5px;color:var(--mute);line-height:1.5;min-height:30px}
.flow__list img{width:100%;aspect-ratio:1;object-fit:cover;margin-top:4px}

/* price + faq */
.pf{background:#fff;padding-top:12px}
.pf__in{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:12px;background:#fbf9f6}
th,td{border:1px solid #ddd3c6;padding:8px 10px;text-align:center}
thead th{background:#e9e2d8;font-weight:500}
tbody th{text-align:left;font-weight:500;background:#f4efe8}
td{color:#8a8179}
.note{font-size:10px;color:var(--mute);margin-top:10px}
.faq__list details{border:1px solid #e0d8cd;border-radius:999px;margin-bottom:10px;background:#fff;overflow:hidden}
.faq__list details[open]{border-radius:18px}
.faq__list summary{list-style:none;cursor:pointer;padding:9px 48px 9px 22px;font-size:13px;position:relative}
.faq__list summary::-webkit-details-marker{display:none}
.faq__list summary::before{content:"Q ";margin-right:6px}
.faq__list summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--mute);font-size:18px}
.faq__list details[open] summary::after{content:"−"}
.faq__list details p{padding:0 22px 14px;font-size:12.5px;color:var(--mute)}

/* cta */
.cta{background:linear-gradient(90deg,rgba(60,48,40,.9),rgba(110,92,78,.85)),#6b5a4c;color:#fff;padding:36px 0}
.cta__in{display:grid;grid-template-columns:auto 1fr auto;gap:36px;align-items:center}
.logo--w .logo__sub{color:#e8dccd}
.logo--w .logo__main{font-size:28px}
.cta__main{text-align:center}
.cta__main p{font-size:18px;margin-bottom:12px;letter-spacing:.06em}
.cta__pts{display:flex;gap:26px}
.cta__pts li{font-size:11px;line-height:1.6;text-align:center;width:130px}
.ic{display:block;width:30px;height:30px;margin:0 auto 6px;border:1.5px solid #e8d6bb;border-radius:8px;position:relative}
.ic::after{content:"";position:absolute;inset:8px;border:1.5px solid #e8d6bb;border-radius:3px}
.ic-heart{border-radius:50% 50% 50% 8px;transform:rotate(-45deg) scale(.85)}
.ic-heart::after{display:none}

/* tablet */
@media(max-width:1100px){
  .gnav{gap:14px;font-size:11px}
  .hd__cta{padding:10px 18px}
  .cta__in{grid-template-columns:1fr;text-align:center;justify-items:center}
  .cta__pts{justify-content:center}
}

/* SP */
@media(max-width:820px){
  body{font-size:14px}
  .wrap{padding:0 20px}
  .hd__in{height:56px;padding:0 16px;gap:0}
  .logo__main{font-size:19px}
  .hd__cta{display:none}
  .burger{display:block;margin-left:auto;width:40px;height:40px;position:relative;background:none;border:0}
  .burger span{position:absolute;left:9px;right:9px;height:1.5px;background:var(--ink);transition:.25s}
  .burger span:first-child{top:15px}.burger span:last-child{top:24px}
  .burger.is-open span:first-child{top:20px;transform:rotate(45deg)}
  .burger.is-open span:last-child{top:20px;transform:rotate(-45deg)}
  .gnav{position:fixed;left:0;right:0;top:56px;background:#fff;flex-direction:column;gap:0;margin:0;padding:8px 20px 20px;font-size:14px;box-shadow:0 8px 16px rgba(0,0,0,.1);transform:translateY(-8px);opacity:0;visibility:hidden;transition:.25s}
  .gnav.is-open{transform:none;opacity:1;visibility:visible}
  .gnav a{padding:14px 0;border-bottom:1px solid #eee}
  .hero{min-height:0;display:flex;flex-direction:column}
  .hero__img{position:relative;order:2;width:100%;height:300px}
  .hero__img img{object-position:center;-webkit-mask-image:linear-gradient(180deg,transparent,#000 18%);mask-image:linear-gradient(180deg,transparent,#000 18%)}
  .hero__body{padding-top:36px;padding-bottom:0}
  .hero__mark{width:60px;height:30px;border-width:4px}
  .hero__mark::after{width:20px;height:20px;border-width:4px}
  .hero__tag{padding-left:74px;font-size:15px}
  .hero__lead{margin-top:20px}
  .chips{gap:8px;flex-wrap:nowrap;margin-top:22px;margin-bottom:6px}
  .chips li{width:calc(25% - 6px);height:auto;aspect-ratio:1;font-size:9.5px;padding-top:24px}
  .hero__script{display:none}
  .sec{padding:40px 0}
  .about{display:flex;flex-direction:column}
  .about__img{position:relative;width:100%;height:200px}
  .about__txt p br{display:none}
  .tech__card{grid-template-columns:1fr;gap:12px;padding:20px 16px}
  .x{width:30px;height:30px}.x::before,.x::after{width:36px}
  .tech__txt br,.mech__lead br{display:none}
  .mech__grid{grid-template-columns:1fr;gap:28px}
  .badge{width:90px;height:90px;top:-34px}.badge b{font-size:24px}
  .feat__list{grid-template-columns:1fr 1fr;gap:10px}
  .feat__list h3{font-size:13px;min-height:40px}
  .area__list{grid-template-columns:repeat(3,1fr);gap:18px 8px}
  .hf__in,.pf__in{grid-template-columns:1fr;gap:36px}
  .flow__list{grid-template-columns:1fr 1fr}
  .cta__main p{font-size:15px}
  .btn--cta{padding:16px 28px;font-size:15px}
  .cta__pts{flex-direction:column;gap:14px}
  .cta__pts li{width:auto}
}
@media(max-width:820px){.hero__lead{font-size:25px}}