/* =========================================================
   曲木製作所 CURVA — Mid-Century Modern design system
   純靜態 HTML/CSS/JS。色彩、字級、元件皆以 CSS 變數管理。
   ========================================================= */
:root{
  --cream:#F4ECD9;          /* 主背景 奶油 */
  --paper:#FBF7EC;          /* 卡片紙白 */
  --ink:#2A211A;            /* 主文字 近黑棕 */
  --walnut:#4A3526;         /* 胡桃木 */
  --walnut-soft:#6F5340;
  --mustard:#D89A1E;        /* 芥末黃 */
  --mustard-deep:#B97F12;
  --teal:#1F5F5B;           /* 孔雀石綠 */
  --teal-deep:#143F3C;
  --burnt:#C75B39;          /* 鏽橘 */
  --sage:#8A9A5B;           /* 鼠尾草綠 */
  --line:#D9CBB0;           /* 細線 */
  --shadow:24px 24px 0 rgba(74,53,38,.08);
  --maxw:1180px;
  --radius:18px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --f-display:'Jost','Noto Sans TC',system-ui,sans-serif;
  --f-body:'Noto Sans TC',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--cream);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ---- Typography ---- */
h1,h2,h3,h4{font-family:var(--f-display);font-weight:600;line-height:1.18;color:var(--walnut);letter-spacing:.01em}
.eyebrow{font-family:var(--f-display);font-weight:600;letter-spacing:.32em;text-transform:uppercase;
  font-size:.72rem;color:var(--burnt);display:inline-block}
.display{font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.05;color:var(--walnut)}
.lead{font-size:1.18rem;color:var(--walnut-soft);max-width:46ch}
.serif-num{font-family:var(--f-display);font-weight:500}

/* ---- Header / Nav ---- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(244,236,217,.86);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--f-display);font-weight:600;
  font-size:1.15rem;letter-spacing:.04em;color:var(--walnut)}
.brand svg{width:38px;height:38px;flex:0 0 auto}
.brand b{font-weight:600}
.brand small{display:block;font-size:.6rem;letter-spacing:.34em;color:var(--burnt);font-weight:600}
.nav-links{display:flex;gap:34px;align-items:center;list-style:none}
.nav-links a{font-size:.95rem;font-weight:500;color:var(--walnut-soft);position:relative;padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--burnt);transition:width .3s var(--ease)}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--walnut)}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{width:100%}
.nav-links a.nav-cta{background:var(--teal);color:var(--paper)!important;padding:10px 22px;border-radius:40px;font-weight:600}
.nav-cta::after{display:none}
.nav-cta:hover{background:var(--teal-deep)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:26px;height:2px;background:var(--walnut);transition:.3s}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:600;
  font-size:.98rem;padding:14px 28px;border-radius:44px;cursor:pointer;border:2px solid transparent;
  transition:transform .25s var(--ease),background .25s,color .25s;letter-spacing:.02em}
.btn:hover{transform:translateY(-3px)}
.btn-primary{background:var(--burnt);color:var(--paper)}
.btn-primary:hover{background:#a8472b}
.btn-outline{border-color:var(--walnut);color:var(--walnut)}
.btn-outline:hover{background:var(--walnut);color:var(--paper)}
.btn .arr{transition:transform .25s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}

/* ---- Sections ---- */
section{padding:88px 0}
.section-head{max-width:62ch;margin-bottom:48px}
.section-head h2{font-size:clamp(1.9rem,3.6vw,2.8rem);margin:14px 0 16px}

/* ---- Hero ---- */
.hero{padding:64px 0 40px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy .display{margin:18px 0 22px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:32px}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:16/10;object-fit:cover}
.hero-badge{position:absolute;left:-22px;bottom:-22px;background:var(--mustard);color:var(--walnut);
  width:128px;height:128px;border-radius:50%;display:grid;place-content:center;text-align:center;
  font-family:var(--f-display);font-weight:600;line-height:1.2;box-shadow:0 12px 30px rgba(74,53,38,.18)}
.hero-badge b{font-size:1.7rem;display:block}
.hero-stats{display:flex;gap:40px;margin-top:46px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-family:var(--f-display);font-size:2.2rem;color:var(--teal);font-weight:600}
.hero-stats span{font-size:.85rem;color:var(--walnut-soft);letter-spacing:.05em}

/* ---- Marquee divider ---- */
.marquee{background:var(--teal);color:var(--paper);overflow:hidden;padding:16px 0;white-space:nowrap}
.marquee-track{display:inline-block;animation:scroll 28s linear infinite;font-family:var(--f-display);
  font-weight:500;letter-spacing:.18em;text-transform:uppercase;font-size:.95rem}
.marquee-track span{margin:0 26px;opacity:.92}
.marquee-track .dot{display:inline-block;width:7px;height:7px;margin:0 20px;background:var(--mustard);transform:rotate(45deg);vertical-align:middle;opacity:1}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---- Feature cards ---- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;
  transition:transform .3s var(--ease),box-shadow .3s}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(74,53,38,.12)}
.card .ico{width:54px;height:54px;margin-bottom:20px}
.card h3{font-size:1.3rem;margin-bottom:10px}
.card p{color:var(--walnut-soft);font-size:.98rem}

/* ---- Collections grid ---- */
.collection-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.piece{background:var(--paper);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  transition:transform .3s var(--ease),box-shadow .3s}
.piece:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(74,53,38,.14)}
.piece-media{aspect-ratio:4/3;overflow:hidden;background:var(--cream)}
.piece-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.piece:hover .piece-media img{transform:scale(1.05)}
.piece-body{padding:26px 28px}
.piece-body .tag{font-family:var(--f-display);letter-spacing:.2em;font-size:.72rem;color:var(--burnt);font-weight:600;text-transform:uppercase}
.piece-body h3{font-size:1.45rem;margin:8px 0 8px}
.piece-body p{color:var(--walnut-soft);font-size:.96rem}
.piece-body .meta{margin-top:16px;display:flex;justify-content:space-between;align-items:center;
  border-top:1px dashed var(--line);padding-top:14px;font-size:.85rem;color:var(--walnut-soft)}
.piece-body .price{font-family:var(--f-display);color:var(--teal);font-weight:600;font-size:1.05rem}

/* ---- Split / story ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:-1}
.split-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;aspect-ratio:4/3;object-fit:cover}
.split-copy h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin:12px 0 18px}
.split-copy p{color:var(--walnut-soft);margin-bottom:16px}

/* ---- Process steps ---- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding:30px 24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--f-display);font-weight:600;
  font-size:2.4rem;color:var(--mustard);display:block;margin-bottom:12px}
.step h3{font-size:1.15rem;margin-bottom:8px}
.step p{font-size:.92rem;color:var(--walnut-soft)}

/* ---- Banner CTA ---- */
.cta-banner{background:var(--walnut);color:var(--paper);border-radius:26px;padding:64px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-banner h2{color:var(--paper);font-size:clamp(1.8rem,3.4vw,2.6rem);max-width:18ch}
.cta-banner p{color:rgba(251,247,236,.78);margin-top:12px;max-width:44ch}
.cta-banner .deco{position:absolute;right:-40px;top:-40px;width:240px;height:240px;opacity:.18}

/* ---- Testimonial ---- */
.quote{max-width:50ch;margin:0 auto;text-align:center}
.quote blockquote{font-family:var(--f-display);font-weight:500;font-size:clamp(1.4rem,3vw,2rem);
  color:var(--walnut);line-height:1.4}
.quote cite{display:block;margin-top:22px;font-style:normal;color:var(--burnt);font-weight:600;letter-spacing:.06em}

/* ---- Page hero (interior pages) ---- */
.page-hero{background:var(--teal);color:var(--paper);padding:96px 0 84px;position:relative;overflow:hidden}
.page-hero .eyebrow{color:var(--mustard)}
.page-hero h1{color:var(--paper);font-size:clamp(2.2rem,5vw,3.6rem);margin:14px 0 16px}
.page-hero p{color:rgba(251,247,236,.82);max-width:54ch;font-size:1.1rem}
.page-hero .deco{position:absolute;right:-30px;bottom:-60px;width:280px;height:280px;opacity:.16}
.crumb{font-size:.85rem;color:rgba(251,247,236,.7);margin-bottom:6px}
.crumb a:hover{color:var(--mustard)}

/* ---- Article / prose ---- */
.prose{max-width:72ch}
.prose p{margin-bottom:20px;color:var(--walnut-soft)}
.prose h2{font-size:1.7rem;margin:40px 0 16px}
.prose h3{font-size:1.3rem;margin:28px 0 12px}
.prose ul{margin:0 0 20px 1.2em;color:var(--walnut-soft)}
.prose li{margin-bottom:8px}

/* ---- Values / about list ---- */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.value{padding:28px;border-left:3px solid var(--mustard);background:var(--paper);border-radius:0 var(--radius) var(--radius) 0}
.value h3{font-size:1.2rem;margin-bottom:8px}
.value p{color:var(--walnut-soft);font-size:.95rem}

/* ---- Team ---- */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.member{text-align:center}
.member .avatar{width:120px;height:120px;border-radius:50%;margin:0 auto 16px;background:var(--mustard);
  display:grid;place-content:center;font-family:var(--f-display);font-weight:600;font-size:2.4rem;color:var(--walnut)}
.member h3{font-size:1.15rem;margin-bottom:4px}
.member span{color:var(--burnt);font-size:.85rem;letter-spacing:.08em;display:block;margin-bottom:10px;font-weight:600}
.member p{color:var(--walnut-soft);font-size:.9rem}

/* ---- Services list ---- */
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.svc-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:34px;display:flex;gap:22px}
.svc-item .ico{width:56px;height:56px;flex:0 0 auto}
.svc-item h3{font-size:1.3rem;margin-bottom:8px}
.svc-item p{color:var(--walnut-soft);font-size:.96rem}
.svc-item ul{margin:12px 0 0 1.1em;color:var(--walnut-soft);font-size:.9rem}

/* ---- Pricing / packages ---- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.plan{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;position:relative}
.plan.feat{background:var(--walnut);color:var(--paper);transform:scale(1.03)}
.plan.feat h3,.plan.feat .amount{color:var(--paper)}
.plan.feat p,.plan.feat li{color:rgba(251,247,236,.8)}
.plan .ribbon{position:absolute;top:18px;right:18px;background:var(--mustard);color:var(--walnut);
  font-size:.7rem;font-weight:600;letter-spacing:.12em;padding:5px 12px;border-radius:30px}
.plan h3{font-size:1.3rem;margin-bottom:6px}
.plan .amount{font-family:var(--f-display);font-size:2.2rem;font-weight:600;color:var(--teal);margin:10px 0}
.plan .amount small{font-size:.9rem;color:var(--walnut-soft);font-weight:400}
.plan ul{list-style:none;margin:18px 0 24px}
.plan li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:.93rem;color:var(--walnut-soft);display:flex;gap:10px}
.plan li svg{flex:0 0 auto;margin-top:5px}

/* ---- FAQ ---- */
.faq{max-width:760px;margin:0 auto}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;padding:4px 24px}
.faq summary{cursor:pointer;font-family:var(--f-display);font-weight:600;font-size:1.08rem;color:var(--walnut);
  padding:18px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.6rem;color:var(--burnt);transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 20px;color:var(--walnut-soft)}

/* ---- Contact ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.info-block{margin-bottom:30px}
.info-block .eyebrow{margin-bottom:8px}
.info-block p{color:var(--walnut-soft)}
.info-block a:hover{color:var(--burnt)}
form .field{margin-bottom:20px}
form label{display:block;font-family:var(--f-display);font-weight:500;margin-bottom:8px;color:var(--walnut)}
form input,form textarea,form select{width:100%;padding:14px 16px;border:1.5px solid var(--line);border-radius:12px;
  font-family:var(--f-body);font-size:1rem;background:var(--paper);color:var(--ink);transition:border-color .25s}
form input:focus,form textarea:focus,form select:focus{outline:none;border-color:var(--teal)}
form textarea{min-height:130px;resize:vertical}
.form-note{font-size:.85rem;color:var(--walnut-soft);margin-top:10px}
.form-success{background:var(--sage);color:#fff;padding:14px 18px;border-radius:12px;margin-top:16px;display:none}
.map-embed{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);margin-top:28px}

/* ---- Footer ---- */
.site-footer{background:var(--walnut);color:rgba(251,247,236,.82);padding:72px 0 32px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{color:var(--paper)}
.site-footer .brand small{color:var(--mustard)}
.footer-about{max-width:34ch;font-size:.92rem;margin-top:18px}
.footer-col h4{color:var(--paper);font-size:.95rem;letter-spacing:.1em;margin-bottom:16px;font-family:var(--f-display)}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px;font-size:.92rem}
.footer-col a:hover{color:var(--mustard)}
.footer-bottom{border-top:1px solid rgba(251,247,236,.16);margin-top:48px;padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.82rem;color:rgba(251,247,236,.6)}
.footer-bottom .signature{color:var(--mustard)}

/* ---- Reveal animation ---- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---- Responsive ---- */
@media(max-width:920px){
  .hero-grid,.split,.contact-grid{grid-template-columns:1fr;gap:36px}
  .split.rev .split-media{order:0}
  .cards,.steps,.values,.team,.pricing,.svc{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links{position:fixed;inset:74px 0 auto 0;background:var(--cream);flex-direction:column;gap:0;
    padding:10px 0;border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .35s var(--ease);
    box-shadow:0 18px 30px rgba(74,53,38,.1)}
  .nav-links.open{transform:none}
  .nav-links li{width:100%;text-align:center;padding:6px 0}
  .nav-toggle{display:flex}
  .cards,.steps,.values,.team,.pricing,.svc,.collection-grid,.footer-grid{grid-template-columns:1fr}
  section{padding:62px 0}
  .cta-banner{padding:44px 30px}
  .hero-badge{width:104px;height:104px;left:-10px}
  .plan.feat{transform:none}
}