/* PFL-04 相册 — a photographer's page as a printed photo book */
.tpl-pfl-04{
  --gut:clamp(20px,5vw,96px);
  --serif:"Cormorant Garamond","Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Inter Tight","Noto Sans SC",system-ui,sans-serif;
  --dock-bg:var(--fg);--dock-fg:var(--bg);
  font-family:var(--sans);font-size:15px;
}
.tpl-pfl-04 main{overflow-x:clip}
.tpl-pfl-04 ::selection{background:var(--fg);color:var(--bg)}
.f4-main>section{max-width:1280px;margin:0 auto;padding:clamp(104px,12vw,200px) var(--gut) 0}

/* header: centred running head */
.f4-head{display:flex;flex-direction:column;align-items:center;gap:2px;max-width:1280px;margin:0 auto;padding:18px var(--gut) 8px}
.f4-brand{font-family:var(--serif);font-style:italic;font-weight:400;font-size:28px;letter-spacing:.02em;text-decoration:none;min-height:48px;display:flex;align-items:center}
.f4-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:0 28px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.f4-nav a{min-height:44px;display:inline-flex;align-items:center;text-decoration:none;transition:color .3s}
.f4-nav a:hover{color:var(--fg)}

/* cover */
.f4-main>.f4-cover{display:flex;flex-direction:column;align-items:center;text-align:center;padding-top:clamp(40px,6vw,96px)}
.f4-eyebrow{margin:0 0 clamp(20px,2.4vw,32px);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}
.f4-cover h1{font-family:var(--serif);font-weight:300;font-style:italic;font-size:clamp(54px,8.6vw,148px);line-height:.95;letter-spacing:-.02em}
.f4-plate{margin:0}
.f4-plate--cover{width:min(100%,560px);margin-top:clamp(48px,6vw,88px)}
.f4-mat{padding:clamp(12px,1.6vw,24px);background:var(--soft);overflow:hidden}
.f4-mat img{width:100%;height:auto;aspect-ratio:auto}
.f4-plate--cover .f4-mat img{aspect-ratio:4/5;object-fit:cover}
.f4-plate figcaption{margin-top:14px;font-family:var(--serif);font-style:italic;font-size:17px;color:var(--muted);text-align:center}
.f4-plate figcaption span{font-style:normal;font-size:15px}
.f4-sub{margin-top:clamp(40px,4vw,56px);max-width:30em;font-size:16px;line-height:2;color:var(--muted)}
.f4-sub p:last-child{margin:0}
.f4-btn{display:inline-flex;align-items:center;gap:14px;min-height:50px;margin-top:28px;padding:0 4px;border-bottom:1px solid currentColor;font-size:13px;letter-spacing:.2em;text-transform:uppercase;text-decoration:none;transition:gap .4s}
.f4-btn::after{content:"→";letter-spacing:0}
.f4-btn:hover{gap:22px}
.f4-btn--solid{padding:0 28px;border:1px solid var(--accent);background:var(--accent);color:var(--on-accent)}
@media (prefers-reduced-motion:no-preference){.f4-plate--cover img{animation:f4-dev 2.2s ease-out both}}
@keyframes f4-dev{from{opacity:0;filter:grayscale(1) brightness(1.6)}to{opacity:1;filter:none}}

/* contents */
.f4-toc{max-width:640px;margin:clamp(104px,12vw,200px) auto 0;padding:0 var(--gut)}
.f4-toc-k{margin:0 0 20px;text-align:center;font-family:var(--serif);font-style:italic;font-size:22px}
.f4-toc ol{border-top:1px solid var(--line)}
.f4-toc a{display:flex;align-items:baseline;gap:14px;min-height:52px;padding:12px 0;border-bottom:1px solid var(--line);text-decoration:none;transition:padding .3s}
.f4-toc a:hover{padding-left:8px}
.f4-toc-n{width:2.6em;flex:none;font-family:var(--serif);font-style:italic;font-size:18px;color:var(--muted)}
.f4-toc-t{font-family:var(--serif);font-size:19px;font-weight:500}
.f4-dots{flex:1;min-width:24px;align-self:center;height:1px;background:radial-gradient(circle,var(--muted) 1px,transparent 1.2px) left center/6px 2px repeat-x;opacity:.7}
.f4-toc-p{font-family:var(--serif);font-size:17px;color:var(--muted);font-variant-numeric:oldstyle-nums}

/* chapter headings */
.f4-chap{display:flex;flex-direction:column;align-items:center;gap:4px;margin:0 0 20px;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.f4-chap span{font-family:var(--serif);font-style:italic;font-size:30px;letter-spacing:0;text-transform:none;color:var(--fg)}
.tpl-pfl-04 h2{font-family:var(--serif);font-weight:400;font-size:clamp(34px,3.6vw,56px);line-height:1.2;letter-spacing:.01em}
.f4-head-c{text-align:center;max-width:680px;margin:0 auto clamp(48px,6vw,88px)}
.f4-intro{margin:18px auto 0;max-width:30em;color:var(--muted);line-height:1.95}
.f4-intro p:last-child{margin:0}

/* about: open spread */
.f4-main>.f4-about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;align-items:center;position:relative}
.f4-main>.f4-about--text{grid-template-columns:minmax(0,1fr);max-width:760px}
.f4-about:not(.f4-about--text)::before{content:"";position:absolute;left:50%;top:clamp(104px,12vw,200px);bottom:0;width:1px;background:linear-gradient(var(--line),var(--line) 70%,transparent)}
.f4-page--l{padding-right:clamp(32px,6vw,96px)}
.f4-page--l .f4-mat{max-width:420px;margin-left:auto}
.f4-page--l img{aspect-ratio:4/5;object-fit:cover}
.f4-page--r{padding-left:clamp(32px,6vw,96px)}
.f4-page--r .f4-chap{align-items:flex-start}
.f4-about--text .f4-page--r{padding:0;text-align:center}
.f4-about--text .f4-chap{align-items:center}
.f4-page--r h2{margin-bottom:28px}
.f4-body{max-width:28em;line-height:2.05;color:var(--muted);font-size:16px}
.f4-about--text .f4-body{margin:0 auto}
.f4-sign{margin:28px 0 0;font-family:var(--serif);font-style:italic;font-size:22px}

/* services as a contents list */
.f4-list{max-width:820px;margin:0 auto;border-top:1px solid var(--fg)}
.f4-item{padding:22px 0 24px;border-bottom:1px solid var(--line)}
.f4-item-top{display:flex;align-items:baseline;gap:16px}
.f4-item-n{flex:none;width:2.6em;font-family:var(--serif);font-style:italic;font-size:20px;color:var(--muted)}
.f4-item h3{font-family:var(--serif);font-weight:500;font-size:clamp(22px,2vw,28px);line-height:1.3}
.f4-ask{flex:none;min-height:44px;display:inline-flex;align-items:center;font-size:12px;letter-spacing:.18em;text-transform:uppercase;text-decoration:none;color:var(--muted);transition:color .3s}
.f4-ask:hover{color:var(--fg)}
.f4-item-d{margin-left:calc(2.6em * 20 / 15 + 16px);max-width:34em;color:var(--muted);line-height:1.85}
.f4-item-d p:last-child{margin:0}
.f4-price{margin:8px 0 0 calc(2.6em * 20 / 15 + 16px);font-family:var(--serif);font-size:18px}

/* plates */
.f4-plates{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(64px,8vw,128px) clamp(24px,4vw,64px);align-items:end}
.f4-plates .f4-plate:nth-child(3n+1){grid-column:1/-1;width:min(100%,960px);justify-self:center}
.f4-plates .f4-plate:nth-child(3n+2) .f4-mat{margin-right:clamp(0px,4vw,64px)}
.f4-plates .f4-plate:nth-child(3n) .f4-mat{margin-left:clamp(0px,4vw,64px)}
.f4-plates .f4-plate:nth-child(3n) figcaption{padding-left:clamp(0px,4vw,64px)}
.f4-plates .f4-plate:nth-child(3n+2) figcaption{padding-right:clamp(0px,4vw,64px)}

/* testimonials */
.f4-quote-list{display:grid;gap:56px;max-width:720px;margin:0 auto;text-align:center}
.f4-quote-list blockquote{font-family:var(--serif);font-style:italic;font-size:clamp(22px,2vw,28px);line-height:1.6}
.f4-quote-list figcaption{margin-top:12px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

/* faq */
.f4-faq-list{max-width:760px;margin:0 auto;border-top:1px solid var(--line)}
.f4-faq-list details{border-bottom:1px solid var(--line)}
.f4-faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:72px;padding:18px 0;font-family:var(--serif);font-weight:500;font-size:clamp(19px,1.6vw,22px)}
.f4-faq-list summary::after{float:none;flex:none;font-family:var(--serif);font-weight:300;font-size:28px;color:var(--muted)}
.f4-faq-list details p{margin:0 0 24px;max-width:36em;color:var(--muted);line-height:1.9}

/* colophon */
.f4-main>.f4-contact{display:flex;flex-direction:column;align-items:center;text-align:center;padding-bottom:clamp(104px,12vw,200px)}
.f4-contact h2{font-style:italic;font-weight:300;font-size:clamp(44px,6vw,96px);line-height:1.05}
.f4-contact .f4-btn{margin-top:36px}
.f4-contact-list{display:flex;flex-wrap:wrap;justify-content:center;gap:20px clamp(32px,5vw,72px);margin-top:56px}
.f4-contact-list li{display:flex;flex-direction:column;align-items:center}
.f4-contact-list .bc-k{font-size:11px;letter-spacing:.24em}
.f4-contact-list a{min-height:44px;display:inline-flex;align-items:center;font-family:var(--serif);font-size:21px;text-decoration:none}
.f4-social{display:flex;flex-wrap:wrap;justify-content:center;gap:0 24px;margin-top:16px;font-size:12px;letter-spacing:.2em;text-transform:uppercase}
.f4-social a{min-height:44px;display:inline-flex;align-items:center;text-decoration:none}

/* footer */
.f4-foot{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 32px;max-width:1280px;margin:0 auto;padding:24px var(--gut) 36px;border-top:1px solid var(--line);font-size:12px;letter-spacing:.16em;color:var(--muted)}
.f4-foot-brand{font-family:var(--serif);font-style:italic;font-size:16px;letter-spacing:.02em;color:var(--fg)}

@media (max-width:760px){
  .f4-head{padding-top:8px}
  .f4-nav{gap:0 16px;font-size:11px;letter-spacing:.14em}
  .f4-cover h1{font-size:clamp(48px,14vw,72px)}
  .f4-main>.f4-about{grid-template-columns:minmax(0,1fr)}
  .f4-about::before{display:none}
  .f4-page--l{padding:0 12% 48px 0}
  .f4-page--l .f4-mat{margin-left:0}
  .f4-page--r{padding:0}
  .f4-plates{grid-template-columns:minmax(0,1fr);gap:56px}
  .f4-plates .f4-plate:nth-child(n) .f4-mat{margin:0}
  .f4-plates .f4-plate:nth-child(n) figcaption{padding:0}
  .f4-plates .f4-plate:nth-child(3n+2){width:86%}
  .f4-plates .f4-plate:nth-child(3n){width:86%;justify-self:end}
  .f4-item-d,.f4-price{margin-left:0;margin-top:8px}
  .f4-item-top{flex-wrap:wrap;gap:4px 12px}
  .f4-item-top .f4-dots{display:none}
  .f4-ask{margin-left:auto}
}
.f4-plates .f4-plate:nth-child(3n+1) .f4-mat{display:flex;justify-content:center;padding:clamp(16px,4vw,56px)}
.f4-plates .f4-plate:nth-child(3n+1) .f4-mat img{width:auto;max-width:100%;max-height:min(78vh,720px)}