/* ===== くらた歯科 共通スタイル ===== */
:root {
  --mint: #E8823A;
  --mint-deep: #D0702E;
  --mint-glow: rgba(232,130,58,.30);
  --mint-light: #FFF5ED;
  --sky: #5AAFE0;
  --coral: #E07A5F;
  --peach: #FFE0D6;
  --lemon: #F0C850;
  --lavender: #9B8EC0;
  --cream: #FFFAF5;
  --text: #555555;
  --text-mid: #555555;
  --text-light: #7a7a7a;
  --white: #ffffff;
  --font: 'Zen Maru Gothic', sans-serif;
  --en: 'Outfit', sans-serif;
  --r: 20px;
  --shadow-sm: 0 2px 8px rgba(26,35,50,.04), 0 1px 2px rgba(26,35,50,.06);
  --shadow-md: 0 8px 32px rgba(26,35,50,.06), 0 2px 8px rgba(26,35,50,.04);
  --shadow-lg: 0 24px 64px rgba(26,35,50,.08), 0 8px 24px rgba(26,35,50,.04);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}
@media(hover:hover){html{scroll-behavior:smooth}}
body{font-family:var(--font);color:var(--text);background:var(--cream);line-height:1.9;overflow-x:hidden;-webkit-tap-highlight-color:transparent;-webkit-overflow-scrolling:touch}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
::selection{background:var(--mint);color:#fff}
/* ===== 日本語テキストの改行制御（禁則処理） =====
   - line-break:strict ：、。などが行頭に来ないよう禁則を厳密化
   - word-break:auto-phrase ：Chrome119+/Edgeで文節境界で折返し。他ブラウザは normal にフォールバック
   - overflow-wrap:break-word ：どうしても収まらない時のみ単語途中で折返す(:anywhere ではないので日本語の中途切断を抑制)
   - text-wrap:pretty ：末尾1文字の孤立(オーファン)を自動軽減(Chrome117+/Safari17.5+)
   - hanging-punctuation：記号を行頭にはみ出させる(Safari)
   Safari等 auto-phrase 未対応ブラウザは JS側 BudouX で <wbr> を注入してフォローする */
html{line-break:strict;hanging-punctuation:first allow-end last}
body{word-break:auto-phrase;overflow-wrap:break-word}
h1,h2,h3,h4,h5,h6,p,li,dt,dd,figcaption,blockquote,.sub-sec-title,.sub-sec-desc,.sub-cta-full h3,.sub-cta-full p,.sub-cta-inner h3,.sub-cta-inner p{text-wrap:pretty;word-break:auto-phrase;overflow-wrap:break-word;line-break:strict}
/* pc-br：スマホでは非表示 / sp-br：PCでは非表示 */
@media(max-width:768px){.pc-br{display:none}}
@media(min-width:769px){.sp-br{display:none}}
/* スマホでの CTA タイトルの余裕確保 */
@media(max-width:480px){
  .sub-cta-full h3{font-size:1.25rem;padding:0 8px}
  .sub-cta-full p{font-size:.88rem;padding:0 8px}
}

/* ── Subpage Nav (TOPと同一デザイン) ── */
.sub-nav{position:fixed;top:0;left:0;right:0;z-index:100;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 36px;background:rgba(255,255,255,.88);backdrop-filter:blur(24px) saturate(1.4);-webkit-backdrop-filter:blur(24px) saturate(1.4);border-bottom:1px solid rgba(59,168,147,.06);transition:all .4s cubic-bezier(.4,0,.2,1)}
.sub-nav.scrolled{box-shadow:0 4px 32px rgba(59,168,147,.08);background:rgba(255,255,255,.96)}
.sub-nav-logo{display:inline-flex;align-items:center}
.sub-nav-logo img{height:44px;width:auto;display:block}
@media(max-width:768px){.sub-nav-logo img{height:36px}}
.sub-nav-links{display:flex;gap:0;list-style:none;align-items:center;white-space:nowrap}
.sub-nav-links li{padding:0 16px;border-right:1px solid rgba(0,0,0,.15);line-height:1}
.sub-nav-links li:last-child{border-right:none}
.sub-nav-links a{font-size:.78rem;font-weight:500;transition:all .3s;position:relative;color:var(--text-mid);white-space:nowrap}
.sub-nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:1.5px;background:var(--mint);border-radius:1px;transition:width .3s cubic-bezier(.4,0,.2,1)}
.sub-nav-links a:hover{color:var(--mint-deep)}
.sub-nav-links a:hover::after{width:100%}
.sub-nav-links a.current{color:var(--mint-deep);font-weight:700}
.sub-nav-links a.current::after{width:100%}
.sub-nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.sub-nav-tel{background:linear-gradient(135deg,var(--mint),var(--mint-deep));color:var(--white);padding:14px 28px;border-radius:50px;font-size:1rem;font-family:var(--en);font-weight:700;transition:all .4s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 20px var(--mint-glow);letter-spacing:.04em;position:relative;overflow:hidden;white-space:nowrap;flex-shrink:0}
.sub-nav-tel::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.15),transparent);opacity:0;transition:opacity .3s}
.sub-nav-tel:hover{transform:translateY(-2px);box-shadow:0 8px 32px var(--mint-glow)}
.sub-nav-tel:hover::before{opacity:1}
.sub-hamburger{display:none;background:var(--mint);border:none;cursor:pointer;width:44px;height:44px;border-radius:12px;position:relative;transition:all .4s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 16px var(--mint-glow)}
.sub-hamburger:hover{transform:scale(1.08);box-shadow:0 6px 24px var(--mint-glow)}
.sub-hamburger:active{transform:scale(.95)}
.sub-hamburger span{display:block;width:18px;height:2px;background:#fff;margin:4px auto;border-radius:2px;transition:all .3s cubic-bezier(.34,1.56,.64,1)}
.sub-hamburger.active span:nth-child(1){transform:rotate(45deg) translate(4px,4px)}
.sub-hamburger.active span:nth-child(2){opacity:0;transform:scaleX(0)}
.sub-hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}

/* Fixed nav 対応：body先頭に72pxの逃げを確保 */
body{padding-top:72px}

/* ── Page Hero（背景写真＋中央タイトル＋英字マーキー） ── */
.page-hero{background:var(--cream);padding:clamp(90px,10vw,140px) clamp(24px,5vw,80px);text-align:center;position:relative;overflow:hidden;display:block;max-width:none;margin:0 auto;isolation:isolate;min-height:360px}
.page-hero-photo{position:absolute;inset:0;z-index:0;margin:0;overflow:hidden}
.page-hero-photo img{width:100%;height:100%;object-fit:cover;object-position:center 30%;display:block;border-radius:0;aspect-ratio:auto;box-shadow:none;filter:brightness(1.02)}
.page-hero::before{content:'';position:absolute;inset:0;z-index:1;background:rgba(255,255,255,.25)}
.page-hero-text{position:relative;z-index:3;max-width:680px;margin:0 auto;padding:22px 32px;text-align:center;display:inline-flex;flex-direction:column;align-items:center;background:rgba(255,250,245,.82);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:10px;box-shadow:0 8px 24px rgba(26,35,50,.08);width:auto}
.page-hero-text::before{display:none}
.page-hero-label{display:none}
.page-hero h1{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;color:var(--mint-deep);margin-bottom:12px;letter-spacing:.08em;line-height:1.55;opacity:0;animation:heroUp .8s .2s forwards}
.page-hero h1 em,.page-hero h1 .k{font-style:normal;color:inherit;background:none!important;position:static}
.page-hero h1 em::after,.page-hero h1 .k::after{display:none!important}
.page-hero p{font-size:.9rem;color:#555555;max-width:520px;margin:0 auto;line-height:1.8;font-weight:500;opacity:0;animation:heroUp .8s .35s forwards}
.page-hero-inner{position:relative;z-index:3;display:flex;justify-content:center;align-items:center;width:100%}
@media(max-width:900px){
  .page-hero{padding:56px 20px 72px;min-height:240px}
  .page-hero-text{padding:18px 22px;border-radius:10px}
}
/* Marquee */
.page-hero-marquee{position:absolute;bottom:6px;left:0;width:100%;overflow:hidden;pointer-events:none;z-index:0}
.page-hero-marquee span{display:inline-block;white-space:nowrap;font-family:var(--en);font-size:clamp(3rem,8vw,5rem);font-weight:800;color:rgba(255,255,255,.55);line-height:1;animation:bgMarquee 30s linear infinite;animation-play-state:paused}
.page-hero-marquee.in-view span{animation-play-state:running}
@keyframes bgMarquee{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
@keyframes heroUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}

/* ── Section ── */
.sub-sec{padding:80px 24px;position:relative;overflow:hidden}
.sub-container{max-width:1000px;margin:0 auto}
.sub-sec-label{font-family:var(--en);font-size:.58rem;font-weight:600;letter-spacing:.4em;text-transform:uppercase;color:var(--mint);margin-bottom:8px}
.sub-sec-title{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:900;margin-bottom:14px;line-height:1.55;letter-spacing:.02em}
.sub-sec-desc{font-size:1rem;color:var(--text-mid);line-height:2.1;margin-bottom:40px;max-width:640px}
.sub-center{text-align:center}
.sub-center .sub-sec-desc{margin-left:auto;margin-right:auto}

/* ── Scroll reveal ── */
.rv{opacity:0;transform:translateY(20px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);will-change:opacity,transform}
.rv.on{opacity:1;transform:none;will-change:auto}
.d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}.d4{transition-delay:.24s}

/* ── Scroll Progress ── */
.scroll-progress{position:fixed;top:72px;left:0;height:2px;background:linear-gradient(90deg,var(--mint),var(--sky),var(--coral));z-index:99;width:0%;border-radius:0 2px 2px 0}

/* ── Cards ── */
.sub-card{background:var(--white);border-radius:var(--r);overflow:hidden;border:1px solid rgba(59,168,147,.06);transition:all .4s cubic-bezier(.4,0,.2,1)}
.sub-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.sub-card-img{overflow:hidden;position:relative}
.sub-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.sub-card:hover .sub-card-img img{transform:scale(1.05)}

/* ── CTA Banner（背景写真＋暗マスク・全ページ共通） ── */
.sub-cta-full{position:relative;padding:clamp(70px,9vw,120px) 24px;overflow:hidden;isolation:isolate;text-align:center;margin:0;color:#fff}
.sub-cta-full .sub-cta-bg{position:absolute;inset:0;z-index:-2}
.sub-cta-full .sub-cta-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.85) saturate(.95)}
.sub-cta-full .sub-cta-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.5),rgba(0,0,0,.55));z-index:0}
.sub-cta-full .sub-cta-inner{position:relative;z-index:2;max-width:800px;margin:0 auto}
.sub-cta-full h3{font-size:clamp(1.4rem,2.6vw,1.85rem);font-weight:600;margin-bottom:14px;color:#fff;letter-spacing:.06em;text-shadow:0 2px 12px rgba(0,0,0,.2)}
.sub-cta-full p{font-size:.95rem;margin-bottom:32px;opacity:.95;color:#fff;letter-spacing:.04em}
.sub-cta-full .sub-cta-btn{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--mint-deep);padding:16px 40px;border-radius:50px;font-size:.9rem;font-weight:700;transition:all .3s;box-shadow:0 8px 24px rgba(0,0,0,.18);letter-spacing:.04em}
.sub-cta-full .sub-cta-btn:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.24)}

/* ── 旧CTA Banner（互換用・オレンジカード） ── */
.sub-cta{background:linear-gradient(135deg,var(--mint),var(--mint-deep));border-radius:var(--r);padding:48px;text-align:center;color:#fff;max-width:800px;margin:0 auto;position:relative;overflow:hidden}
.sub-cta::before{content:'';position:absolute;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.08);top:-60px;right:-40px}
.sub-cta h3{font-size:1.3rem;font-weight:900;margin-bottom:8px}
.sub-cta p{font-size:.82rem;opacity:.8;margin-bottom:24px}
.sub-cta-btn{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--mint-deep);padding:14px 36px;border-radius:50px;font-size:.88rem;font-weight:700;transition:all .3s;box-shadow:0 8px 24px rgba(0,0,0,.1);position:relative;overflow:hidden}
.sub-cta-btn:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.15)}

/* ── Footer（TOPと共通デザイン） ── */
.sub-footer{background:linear-gradient(180deg,#2D3E50,#1E2D3D);color:#fff;padding:64px 24px 32px}
.sub-footer .footer-inner{max-width:1100px;margin:0 auto}
.sub-footer .footer-top{display:flex;justify-content:space-between;gap:40px;margin-bottom:40px;flex-wrap:wrap}
.sub-footer .footer-brand{font-size:1.15rem;font-weight:900;color:#fff;margin-bottom:10px;letter-spacing:.02em}
.sub-footer .footer-addr{font-size:.85rem;line-height:2;color:#fff;font-weight:500}
.sub-footer .footer-links{display:flex;gap:24px;flex-wrap:wrap}
.sub-footer .footer-links a{font-size:.9rem;color:#fff;font-weight:500;transition:all .3s}
.sub-footer .footer-links a:hover{color:var(--mint)}
.sub-footer .footer-copy{text-align:center;font-size:.72rem;padding-top:24px;border-top:1px solid rgba(255,255,255,.15);color:#fff;letter-spacing:.05em;font-weight:500}
@media(max-width:768px){.sub-footer .footer-top{flex-direction:column}}

/* ── Tooth Mascot ── */
.sub-tooth{position:fixed;bottom:24px;right:24px;z-index:80;width:56px;height:56px;cursor:pointer;transition:transform .4s cubic-bezier(.34,1.56,.64,1);filter:drop-shadow(0 4px 12px rgba(59,168,147,.15))}
.sub-tooth:hover{transform:scale(1.15) rotate(-8deg)}
.sub-tooth.bounce{animation:tooth-bounce .6s cubic-bezier(.34,1.56,.64,1)}
@keyframes tooth-bounce{0%,100%{transform:translateY(0)}40%{transform:translateY(-24px) rotate(12deg)}70%{transform:translateY(-4px)}}

/* ── Mobile ── */
.sub-mob-menu{position:fixed;inset:0;z-index:101;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;transform:translateX(100%);transition:transform .5s cubic-bezier(.4,0,.2,1);padding:80px 24px 40px;overflow-y:auto}
/* モバイルメニュー展開中：裏の本文スクロールを止め、常駐の固定要素をタッチ干渉から除外 */
body.sub-menu-open{overflow:hidden;overscroll-behavior:none;touch-action:none}
body.sub-menu-open .sub-mob-menu{touch-action:pan-y}
body.sub-menu-open .sub-tooth,
body.sub-menu-open [data-kurata-chat]{display:none!important}
.sub-mob-menu.open{transform:translateX(0)}
.sub-mob-menu > a{font-size:1rem;font-weight:700;transition:color .3s;color:#555}
.sub-mob-menu > a:hover{color:var(--mint)}
.sub-mob-close{position:absolute;top:20px;right:24px;background:none;border:none;font-size:1.2rem;cursor:pointer;color:var(--text-mid);z-index:2}
/* 予約CTA 2ボタン */
.sub-mob-cta{width:100%;max-width:320px;display:flex;flex-direction:column;gap:12px;margin-top:24px}
.sub-mob-cta a{display:flex;align-items:center;justify-content:center;gap:10px;padding:16px 20px;border-radius:50px;font-size:1rem;font-weight:700;letter-spacing:.04em;text-decoration:none;transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s cubic-bezier(.4,0,.2,1)}
.sub-mob-cta a svg{width:18px;height:18px;flex-shrink:0}
.sub-mob-tel-btn{background:linear-gradient(135deg,#E8823A,#D0702E);color:#fff !important;box-shadow:0 8px 22px rgba(232,130,58,.28)}
.sub-mob-web-btn{background:#fff;color:#3BA893 !important;border:2px solid #3BA893;box-shadow:0 6px 18px rgba(59,168,147,.15)}
.sub-mob-cta a:active{transform:translateY(2px)}

/* ── Page Transition Loader ── */
.page-transition{position:fixed;inset:0;z-index:9999;pointer-events:none;display:flex;align-items:center;justify-content:center}
.page-transition.active{pointer-events:all}
.pt-bg{position:absolute;inset:0;background:linear-gradient(160deg,#FFF5ED,#FFE8D6,var(--cream));transform:scaleY(0);transform-origin:bottom;transition:transform .45s cubic-bezier(.7,0,.3,1)}
.page-transition.active .pt-bg{transform:scaleY(1)}
.page-transition.leaving .pt-bg{transform-origin:top;transform:scaleY(0);transition:transform .4s .15s cubic-bezier(.7,0,.3,1)}
.pt-logo{position:relative;z-index:2;opacity:0;transform:scale(.8);transition:opacity .3s .2s,transform .3s .2s cubic-bezier(.34,1.56,.64,1)}
.page-transition.active .pt-logo{opacity:1;transform:scale(1)}
.page-transition.leaving .pt-logo{opacity:0;transform:scale(1.1);transition:opacity .2s,transform .2s}
.pt-logo svg{animation:pt-bounce .6s .3s cubic-bezier(.34,1.56,.64,1) both}
@keyframes pt-bounce{0%{transform:translateY(10px)}50%{transform:translateY(-8px) rotate(-5deg)}100%{transform:translateY(0)}}
.pt-bar{position:absolute;bottom:0;left:0;height:3px;background:linear-gradient(90deg,var(--mint),var(--lemon),var(--mint));width:0%;z-index:3;border-radius:0 3px 3px 0;transition:width .4s .1s ease}
.page-transition.active .pt-bar{width:70%}
.page-transition.leaving .pt-bar{width:100%;transition:width .2s ease}

/* ── Section Parallax BG Text ── */
.sec-bg-text{position:absolute;top:50%;left:0;width:200%;white-space:nowrap;font-family:var(--en);font-size:clamp(4rem,12vw,8rem);font-weight:900;color:rgba(59,168,147,.03);line-height:1;pointer-events:none;z-index:0;transform:translateY(-50%);will-change:transform}

/* ── Bounce on hover for cards ── */
.sub-card:active,.equip-card:active,.prev-menu-card:active,.cerec-merit:active,.ortho-merit:active,.imp-merit:active,.access-card:active,.direction-card:active,.wh-type:active,.dr-cred-card:active{
  transform:scale(.96)!important;transition:transform .1s!important
}

@media(max-width:1180px){
  .sub-nav{padding:0 20px}
  .sub-nav-links{display:none}
  .sub-nav-tel{display:none}
  .sub-hamburger{display:block}
}
@media(max-width:768px){
  .sub-nav{padding:0 16px;height:64px;backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(255,255,255,.96)}
  body{padding-top:64px}
  .scroll-progress{top:64px}
  .sub-sec{padding:60px 16px}
  .page-hero{padding:80px 16px 50px}
  .sub-tooth{width:44px;height:44px;bottom:16px;right:16px}
  .sec-bg-text{font-size:3rem}
  /* SPで本文系の max-width を 100% に(狭幅での余白ダブり対策) */
  .sub-sec-desc,.sub-cta-full p,.page-hero p{max-width:100%}
}

/* ── Heading softening (color:#555 / weight:600) ── */
.page-hero h1,
.sub-sec-title,
.article-title,
.article-body h2,
.article-body h3,
.article-toc h4,
.related-articles h3,
.article-references h3,
.clinic-card h4,
.iv-mal-name .jp{
  color:#555555;
  font-weight:600;
}

/* ── FAQ (sub pages 共通) ── */
.faq-section{max-width:800px;margin:0 auto}
.faq-item{background:var(--white);border-radius:14px;margin-bottom:10px;border:1px solid rgba(0,0,0,.04);overflow:hidden;transition:box-shadow .3s}
.faq-item:hover{box-shadow:0 4px 16px rgba(0,0,0,.04)}
.faq-q{padding:18px 22px;font-size:.86rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;transition:color .3s}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--mint-deep)}
.faq-q::after{content:'+';font-family:var(--en);font-size:1.1rem;font-weight:300;color:var(--mint);transition:transform .3s;flex-shrink:0}
details[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 22px 18px;font-size:.8rem;color:var(--text-mid);line-height:2.2}
.faq-a a{color:var(--mint-deep);font-weight:600}
details[open] .faq-a{animation:faqSlide .3s ease}
@keyframes faqSlide{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ── Reduced motion: 動きを減らしたい利用者向けに大半のアニメ/遷移を即時化 ── */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .rv{opacity:1 !important;transform:none !important}
  .gallery-track,.voice-track{animation:none !important}
}