:root{
  --ink:#333333;
  --sub:#888888;
  --sub2:#666666;
  --date:#AEAEAE;
  --surface:#EBF0F2;
  --tag:#EAE8E8;
  --accent:#7EB1C2;
  --black:#000000;
  --white:#FFFFFF;
  --r-card:15px;
  --r-pill:50px;
  --font-jp:"Noto Sans JP",sans-serif;
  --font-en:"Josefin Sans",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  font-family:var(--font-jp);
  font-size:16px;font-weight:400;line-height:1.6;letter-spacing:.6px;
  color:var(--ink);background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit;}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- 背景スタンプ ---------- */
.stamp{
  position:fixed;z-index:0;pointer-events:none;
  right:-70px;top:340px;width:300px;height:300px;
  border:3px solid var(--accent);border-radius:28px;
  transform:rotate(-14deg);opacity:.055;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-en);font-size:34px;letter-spacing:6px;color:var(--accent);
}
.stamp.stamp-2{left:-90px;right:auto;top:auto;bottom:520px;transform:rotate(11deg);}

/* ---------- ヘッダー ---------- */
header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid #eee;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--accent);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{font-weight:700;font-size:15px;letter-spacing:1px;line-height:1.2;}
.brand-name small{display:block;font-family:var(--font-en);font-weight:400;font-size:9px;letter-spacing:2px;color:var(--sub);}
.hamburger{
  width:44px;height:44px;border-radius:50%;background:var(--black);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  flex:none;
}
.hamburger span{width:16px;height:2px;background:var(--white);border-radius:2px;transition:transform .25s,opacity .25s;}
body.menu-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.menu-open .hamburger span:nth-child(2){opacity:0;}
body.menu-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- メニューオーバーレイ ---------- */
.menu{
  position:fixed;inset:0;z-index:55;background:var(--white);
  display:flex;flex-direction:column;justify-content:center;
  padding:80px 32px 40px;
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
body.menu-open .menu{opacity:1;visibility:visible;}
.menu a{
  display:flex;align-items:baseline;gap:12px;
  padding:16px 0;border-bottom:1px solid var(--surface);
  font-weight:700;font-size:20px;
}
.menu a small{font-family:var(--font-en);font-weight:400;font-size:11px;letter-spacing:2px;color:var(--accent);}
.menu .menu-sns{display:flex;gap:14px;margin-top:28px;border:none;}
.menu .menu-sns a{border:none;padding:0;}

/* ---------- 右端固定タブ ---------- */
.side-tabs{
  position:fixed;right:0;top:38%;z-index:50;
  display:flex;flex-direction:column;gap:10px;
}
.side-tabs a{
  writing-mode:vertical-rl;
  width:44px;height:146px;
  border-radius:6px 0 0 6px;
  color:var(--white);font-weight:700;font-size:13px;letter-spacing:2px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:-2px 2px 8px rgba(0,0,0,.14);
}
.side-tabs a.tab-model{background:var(--accent);}
.side-tabs a.tab-doc{background:var(--ink);}

/* ---------- レイアウト ---------- */
main{position:relative;z-index:1;}
.wrap{max-width:960px;margin:0 auto;padding:0 20px;}
@media (max-width:639px){.wrap{padding-right:58px;}}
section{padding:56px 0;}
.sec-head{margin-bottom:28px;}
.sec-head .en{
  font-family:var(--font-en);font-size:13px;letter-spacing:3px;
  color:var(--accent);text-transform:uppercase;margin-bottom:4px;
}
.sec-head .jp{font-size:26px;font-weight:700;line-height:1.4;}
.sec-head .lead{margin-top:10px;font-size:14px;color:var(--sub2);}

/* ---------- ヒーロー ---------- */
.hero{padding:120px 0 48px;text-align:center;position:relative;}
.hero .en{font-family:var(--font-en);font-size:14px;letter-spacing:4px;color:var(--accent);text-transform:uppercase;}
.hero h1{font-size:30px;font-weight:900;line-height:1.5;margin:12px 0 14px;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero p{font-size:14px;color:var(--sub2);max-width:420px;margin:0 auto;}
.collage{
  position:relative;height:190px;margin:34px auto 8px;max-width:360px;
}
.collage figure{
  position:absolute;width:62%;border-radius:12px;overflow:hidden;
  box-shadow:0 8px 24px rgba(0,0,0,.16);background:var(--surface);
  aspect-ratio:16/9;
}
.collage img{width:100%;height:100%;object-fit:cover;}
.collage figure:nth-child(1){left:0;top:0;transform:rotate(-6deg);}
.collage figure:nth-child(2){right:0;top:34px;transform:rotate(5deg);}
.collage figure:nth-child(3){left:19%;top:86px;transform:rotate(-2deg);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:space-between;gap:16px;
  width:min(300px,86%);height:64px;padding:0 12px 0 32px;margin-top:30px;
  background:var(--ink);color:var(--white);border-radius:var(--r-pill);
  font-weight:700;font-size:16px;letter-spacing:1px;
}
.btn-main .dot{
  width:40px;height:40px;border-radius:50%;background:var(--white);flex:none;
  display:flex;align-items:center;justify-content:center;
}
.btn-main .dot svg{width:14px;height:14px;}
@media (prefers-reduced-motion:no-preference){
  .btn-main{transition:transform .2s;}
  .btn-main:active{transform:scale(.97);}
}

/* ---------- 悩みカテゴリ ---------- */
.concern-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;
}
.concern-card{
  background:var(--white);border:2px solid var(--surface);border-radius:var(--r-card);
  padding:22px 12px 20px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
@media (prefers-reduced-motion:no-preference){
  .concern-card{transition:transform .2s,border-color .2s,background .2s;}
  .concern-card:active{transform:scale(.96);}
}
.concern-card .icon{
  width:64px;height:64px;border-radius:50%;background:var(--surface);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.concern-card .icon svg{width:32px;height:32px;}
.concern-card .c-en{font-family:var(--font-en);font-size:9px;letter-spacing:2px;color:var(--sub);text-transform:uppercase;}
.concern-card .c-jp{font-weight:700;font-size:14.5px;line-height:1.5;letter-spacing:.5px;}
.concern-card.is-active{background:var(--ink);border-color:var(--ink);color:var(--white);}
.concern-card.is-active .icon{background:var(--accent);}
.concern-card.is-active .c-en{color:#b9c6cb;}
.concern-card.is-active .icon svg *{stroke:var(--white);}
@media (min-width:640px){.concern-grid{grid-template-columns:repeat(4,1fr);gap:16px;}}

/* ---------- 動画一覧 ---------- */
.videos{display:none;}
.videos.is-open{display:block;}
.videos-inner{
  background:var(--surface);border-radius:var(--r-card);
  padding:30px 18px 26px;position:relative;
}
.videos-label{
  display:inline-block;background:var(--accent);color:var(--white);
  font-weight:700;font-size:13px;letter-spacing:1px;
  padding:6px 18px;border-radius:var(--r-pill);margin-bottom:6px;
}
.videos-title{font-size:20px;font-weight:700;margin-bottom:4px;}
.videos-sub{font-size:13px;color:var(--sub2);margin-bottom:20px;}
.video-list{display:flex;flex-direction:column;gap:16px;}
.video-card{
  background:var(--white);border-radius:var(--r-card);overflow:hidden;text-align:left;
  box-shadow:0 3px 10px rgba(0,0,0,.05);
}
.video-card .thumb{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;background:#dce3e6;}
.video-card .thumb img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.video-card .play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:rgba(0,0,0,.82);
  display:flex;align-items:center;justify-content:center;
}
.video-card .play svg{width:18px;height:18px;margin-left:3px;}
.video-card .v-title{display:block;padding:14px 16px 16px;font-weight:700;font-size:14.5px;line-height:1.55;}
@media (min-width:640px){
  .video-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
  .videos-inner{padding:36px 30px 32px;}
}
.link-more{
  display:inline-flex;align-items:center;gap:10px;margin-top:22px;
  font-weight:700;font-size:15px;
}
.link-more .arr{
  width:26px;height:26px;border:2px solid var(--ink);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.link-more .arr svg{width:11px;height:11px;}

/* ---------- プレイヤーモーダル ---------- */
.player{
  position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.88);
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;
}
.player.is-open{opacity:1;visibility:visible;}
.player-box{width:100%;max-width:900px;}
.player-frame{aspect-ratio:16/9;width:100%;border-radius:10px;overflow:hidden;background:#000;}
.player-frame iframe{width:100%;height:100%;border:0;display:block;}
.player-close{
  margin:18px auto 0;display:flex;align-items:center;gap:8px;
  color:var(--white);font-weight:700;font-size:14px;letter-spacing:1px;
  padding:10px 26px;border:1.5px solid rgba(255,255,255,.7);border-radius:var(--r-pill);
}

/* ---------- お問い合わせ ---------- */
.contact-photo{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/8;background:var(--surface);
  position:relative;
}
.contact-photo img{width:100%;height:100%;object-fit:cover;}
.contact-panel{
  background:var(--white);border-radius:var(--r-card);
  margin:-56px 14px 0;position:relative;z-index:2;
  padding:26px 20px;box-shadow:0 8px 24px rgba(0,0,0,.08);
  display:grid;gap:14px;
}
.contact-col{
  border:2px solid var(--surface);border-radius:12px;padding:18px;
  display:flex;flex-direction:column;gap:6px;text-align:center;
}
.contact-col .en{font-family:var(--font-en);font-size:11px;letter-spacing:2px;color:var(--accent);text-transform:uppercase;}
.contact-col .big{font-weight:900;font-size:22px;letter-spacing:1px;}
.contact-col .note{font-size:12px;color:var(--sub);}
.contact-col .c-btn{
  margin-top:8px;display:inline-flex;justify-content:center;align-items:center;gap:8px;
  background:var(--ink);color:var(--white);border-radius:var(--r-pill);
  font-weight:700;font-size:14px;padding:12px;
}
@media (min-width:640px){.contact-panel{grid-template-columns:1fr 1fr;margin:-64px 40px 0;}}

.map-card{
  margin-top:26px;background:var(--surface);border-radius:var(--r-card);
  padding:26px 22px;
}
.map-card .addr{font-weight:700;font-size:15px;line-height:1.7;}
.map-card .addr small{display:block;font-weight:400;font-size:12px;color:var(--sub2);margin-bottom:4px;}
.map-card .c-btn{
  margin-top:14px;display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:var(--white);border-radius:var(--r-pill);
  font-weight:700;font-size:14px;padding:13px 26px;
}

.sns-row{display:flex;gap:14px;margin-top:26px;}
.sns-row a{
  width:52px;height:52px;border-radius:50%;border:2px solid var(--ink);
  display:flex;align-items:center;justify-content:center;
}
.sns-row svg{width:22px;height:22px;}

/* ---------- フッター ---------- */
footer{
  position:relative;z-index:1;background:var(--white);
  border-top:1px solid #ddd;margin-top:40px;
}
.page-top{
  position:absolute;left:50%;top:-46px;transform:translateX(-50%);
  width:76px;height:76px;border-radius:50%;background:var(--white);
  border:1px solid #ddd;display:flex;align-items:center;justify-content:center;
}
.page-top svg{width:44px;height:44px;}
.foot-inner{max-width:960px;margin:0 auto;padding:56px 20px 90px;}
@media (max-width:639px){.foot-inner{padding-right:58px;}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-addr{font-size:13px;color:var(--sub2);line-height:1.9;}
.foot-links{
  display:grid;grid-template-columns:1fr 1fr;gap:26px 18px;margin-top:34px;
}
.foot-links h3{font-size:14px;font-weight:700;margin-bottom:10px;}
.foot-links ul{list-style:none;}
.foot-links li{margin-bottom:8px;}
.foot-links li a{font-size:13px;color:var(--sub2);}
.foot-copy{
  margin-top:40px;padding-top:18px;border-top:1px solid #eee;
  font-size:11px;color:var(--date);text-align:center;letter-spacing:1px;
}
@media (min-width:640px){.foot-links{grid-template-columns:repeat(4,1fr);}}

/* 元HTMLの見た目を保ちながら、操作と狭い画面の表示を補正 */
section, #top { scroll-margin-top: 86px; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; transform: translateY(-160%); background: #333; color: #fff; padding: 12px 18px; border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }
.menu { overflow-y: auto; }
.menu .menu-sns a { width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; }
.menu .menu-sns svg { width: 24px; height: 24px; }
.player { overflow-y: auto; }
.player-box { width: min(900px, 100%, calc((100dvh - 170px) * 16 / 9)); max-height: calc(100dvh - 40px); overflow-y: auto; }
.player-title { font-size: 16px; font-weight: 700; line-height: 1.6; color: #fff; margin-bottom: 12px; }
.player-help { color: #d1d1d1; font-size: 12px; text-align: center; margin-top: 14px; }
.player-help a { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.player-close { margin-top: 14px; }
.contact-col .big { font-size: clamp(17px, 5.6vw, 22px); }
.concern-card, .video-card { min-width: 0; }
.menu a { flex-wrap: wrap; }
.menu a small { flex-shrink: 0; }
.foot-addr, .map-card .addr { overflow-wrap: anywhere; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .concern-card:hover { border-color: var(--accent); transform: translateY(-3px); }
  .concern-card.is-active:hover { border-color: var(--ink); }
  .video-card .thumb img { transition: transform .25s; }
  .video-card:hover .thumb img { transform: scale(1.03); }
  .btn-main:hover { transform: translateY(-2px); }
  .foot-links a:hover, .link-more:hover { color: #568b9c; }
}
@media (max-width: 1039px) {
  .wrap, .foot-inner { padding-right: 58px; }
}
@media (max-width: 359px) {
  .hero h1 { font-size: 26px; }
  .sec-head .jp { font-size: 22px; }
  .concern-card { padding-inline: 8px; }
  .concern-card .c-jp { font-size: 13px; }
  .contact-panel { margin-inline: 0; padding: 18px 12px; }
  .btn-main { padding-left: 20px; font-size: 14px; }
}
@media (max-height: 620px) {
  .menu { justify-content: flex-start; }
  .menu a { padding-block: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}