/* ═══════════════════════════════════════════════
   木白空間設計 MUBAI DESIGN — 室內設計/裝修模板
   視覺參考:大雄設計(作品集畫廊感)× Studio McGee(暖中性)× Neri&Hu(細線建築感)
   設計語言:米白底 + 墨黑 + 木質陶土色、直角細線、Cormorant 英文標題
   ═══════════════════════════════════════════════ */

:root {
  --primary: #8a6f52;          /* 木質陶土 */
  --primary-dark: #6b543c;
  --primary-light: #f2ece3;
  --accent: #1f1d1a;           /* 墨黑(深色區塊用)*/
  --ink: #262320;
  --ink-soft: #7c766d;
  --bg: #fbfaf7;               /* 米白 */
  --bg-alt: #f2efe9;
  --line: #e3ded4;
  --line-green: #06c755;
  --radius: 3px;               /* 幾乎直角 = 建築感 */
  --shadow: 0 10px 30px rgba(38, 35, 32, .10);
  --font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --font-display: "Cormorant Garamond", "Noto Serif TC", Georgia, serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 68px; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.85; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-dark); text-decoration: none; }

.container { width: min(1180px, 92%); margin: 0 auto; }
.container-narrow { width: min(760px, 92%); }

/* ── 按鈕 ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 11px 22px; border-radius: var(--radius);
  font-weight: 700; font-size: 15px; white-space: nowrap;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { border: 1px solid var(--primary); color: var(--primary-dark); background: transparent; }
.btn-outline-light { border: 1px solid rgba(255,255,255,.55); color: #fff; }
.btn-ghost { color: var(--ink); font-weight: 500; letter-spacing: .04em; padding: 11px 12px; }
.btn-ghost:hover { color: var(--primary-dark); box-shadow: none; transform: none; }
.btn-line { background: var(--line-green); color: #fff; }
.btn-lg { padding: 15px 30px; font-size: 16.5px; }

/* ── Header ── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,250,247,.94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 68px; }
.logo { font-size: 23px; font-weight: 900; color: var(--ink); letter-spacing: .1em; display: flex; align-items: baseline; gap: 10px; }
.logo-en { font-family: var(--font-display); font-size: 12px; letter-spacing: .3em; color: var(--primary); font-weight: 600; }
.main-nav { display: flex; gap: 2px; margin-left: auto; }
.main-nav a { color: var(--ink); font-weight: 500; padding: 8px 11px; border-radius: var(--radius); font-size: 14.5px; letter-spacing: .02em; }
.main-nav a:hover { background: var(--primary-light); color: var(--primary-dark); }
.header-cta { display: flex; align-items: center; gap: 4px; }
.nav-toggle { display: none; }

/* ── Hero ── */
.hero {
  background:
    linear-gradient(96deg, rgba(26,24,21,.82) 0%, rgba(26,24,21,.55) 46%, rgba(26,24,21,.12) 100%),
    url("../assets/hero.jpg") center / cover no-repeat;
  min-height: clamp(540px, 76vh, 740px);
  display: flex; align-items: center;
  padding: 80px 0;
}
.hero-text { max-width: 680px; }
.hero-eyebrow {
  color: #d9c5a8; font-weight: 500; letter-spacing: .16em;
  margin-bottom: 16px; font-size: 13.5px;
}
.hero h1 {
  font-size: clamp(34px, 4.8vw, 56px); font-weight: 700; line-height: 1.3;
  margin-bottom: 20px; color: #fff; letter-spacing: .01em;
}
.hero h1 em {
  font-family: var(--font-display); font-style: italic; font-weight: 500;
  color: #e2c9a4; font-size: 1.12em;
}
.hero-sub { color: rgba(255,255,255,.86); font-size: 17px; margin-bottom: 24px; max-width: 34em; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 30px; }
.badge {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.3);
  color: #fff; border-radius: var(--radius);
  padding: 7px 14px; font-size: 13.5px; font-weight: 500; backdrop-filter: blur(4px);
}
.badge-hot { background: var(--primary); border-color: var(--primary); font-weight: 700; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-cta.center { justify-content: center; }
.hero .btn-outline { border-color: rgba(255,255,255,.55); color: #fff; }

/* ── 信任數字條 ── */
.stats { background: var(--accent); color: #f2ece3; }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 32px 18px; text-align: center; border-left: 1px solid rgba(242,236,227,.14); }
.stat:first-child { border-left: 0; }
.stat strong { font-family: var(--font-display); font-size: 44px; font-weight: 600; line-height: 1; color: #fff; }
.stat span { font-size: 15px; margin-left: 4px; color: #d9c5a8; }
.stat p { font-size: 13.5px; color: rgba(242,236,227,.66); margin-top: 6px; }

/* ── 區塊通用 ── */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-accent { background: var(--accent); }
.section-accent .section-title { color: #fff; }
.section-title {
  font-size: clamp(25px, 3vw, 34px); font-weight: 900; text-align: center;
  margin-bottom: 14px; letter-spacing: .01em;
}
.section-sub { text-align: center; color: var(--ink-soft); margin-bottom: 50px; }
.section-sub-light { color: rgba(242,236,227,.75); }

/* ── 收費三卡 ── */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.price-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px 28px;
}
.price-card-hot { background: var(--accent); border-color: var(--accent); color: #f2ece3; }
.price-tag {
  font-size: 12px; letter-spacing: .18em; font-weight: 700;
  color: var(--primary); margin-bottom: 10px;
}
.price-card-hot .price-tag { color: #d9c5a8; }
.price-card h3 { font-size: 20px; font-weight: 900; margin-bottom: 12px; }
.price-en { font-family: var(--font-display); font-size: 12px; letter-spacing: .2em; color: var(--ink-soft); margin-left: 6px; font-weight: 600; }
.price-card-hot .price-en { color: rgba(242,236,227,.55); }
.price-num { font-family: var(--font-display); font-size: 36px; font-weight: 600; line-height: 1.2; color: var(--primary-dark); }
.price-card-hot .price-num { color: #fff; }
.price-num em { font-family: var(--font); font-style: normal; font-size: 15px; font-weight: 500; color: var(--ink-soft); }
.price-card-hot .price-num em { color: rgba(242,236,227,.7); }
.price-num-sub { font-size: 14.5px; color: var(--ink-soft); margin-top: 2px; }
.price-card-hot .price-num-sub { color: rgba(242,236,227,.8); }
.price-num-sub strong { color: var(--primary); }
.price-card-hot .price-num-sub strong { color: #e2c9a4; }
.price-card ul { list-style: none; margin: 20px 0 16px; border-top: 1px solid var(--line); }
.price-card-hot ul { border-top-color: rgba(242,236,227,.18); }
.price-card li { padding: 9px 0 9px 20px; border-bottom: 1px solid var(--line); font-size: 14.5px; position: relative; }
.price-card-hot li { border-bottom-color: rgba(242,236,227,.14); }
.price-card li::before { content: "—"; position: absolute; left: 0; color: var(--primary); }
.price-card-hot li::before { color: #d9c5a8; }
.price-x { font-size: 13.5px; color: var(--ink-soft); }
.price-card-hot .price-x { color: rgba(242,236,227,.66); }
.price-note { text-align: center; margin-top: 34px; color: var(--ink-soft); font-size: 14px; }
.price-note strong { color: var(--ink); }

/* ── 作品案例卡(規格列 = 100室內設計 標準欄位)── */
.works-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.case { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.case-img { display: block; width: 100%; border: 0; padding: 0; background: none; cursor: zoom-in; overflow: hidden; }
.case-img img { aspect-ratio: 4/3; object-fit: cover; width: 100%; transition: transform .4s ease; }
.case-img:hover img { transform: scale(1.04); }
.case-body { padding: 24px 26px 26px; }
.case-body h3 { font-size: 20px; font-weight: 900; letter-spacing: .04em; }
.case-body h3 span { font-size: 13.5px; font-weight: 500; color: var(--ink-soft); letter-spacing: 0; margin-left: 8px; }
.case-spec {
  display: grid; grid-template-columns: repeat(5, 1fr);
  margin: 16px 0 14px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.case-spec > div { padding: 10px 6px; border-left: 1px solid var(--line); text-align: center; }
.case-spec > div:first-child { border-left: 0; }
.case-spec dt { font-size: 11.5px; letter-spacing: .1em; color: var(--ink-soft); }
.case-spec dd { font-size: 14px; font-weight: 700; margin-top: 2px; line-height: 1.4; }
.case-body p { font-size: 14.5px; color: var(--ink-soft); }
.ig-cta { text-align: center; margin-top: 38px; font-weight: 700; }

/* ── 設計流程 ── */
.process { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
.process li { background: var(--bg); padding: 30px 26px 28px; }
.p-num {
  font-family: var(--font-display); font-size: 30px; font-weight: 600;
  color: var(--primary); display: block; line-height: 1; margin-bottom: 12px;
}
.process h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.p-out { font-size: 14.5px; color: var(--ink-soft); }
.p-day {
  display: inline-block; margin-top: 12px; padding: 3px 10px;
  background: var(--primary-light); color: var(--primary-dark);
  font-size: 13px; font-weight: 700; border-radius: var(--radius);
}

/* ── 設計團隊 ── */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.team-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.team-card img { aspect-ratio: 4/5; object-fit: cover; width: 100%; }
.team-info { padding: 22px 24px 26px; }
.team-info h3 { font-size: 19px; font-weight: 900; letter-spacing: .04em; }
.team-info h3 span { font-size: 13px; color: var(--primary); font-weight: 700; letter-spacing: 0; margin-left: 6px; }
.team-meta { font-size: 13px; color: var(--ink-soft); letter-spacing: .06em; margin: 4px 0 10px; }
.team-info p { font-size: 14.5px; color: var(--ink-soft); }

/* ── 屋主評價 ── */
.review-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.review { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.review-stars { color: #c9962f; letter-spacing: 3px; margin-bottom: 10px; font-size: 14px; }
.review p { font-size: 15.5px; }
.review footer { margin-top: 12px; font-size: 13.5px; color: var(--ink-soft); }
.review-more { text-align: center; margin-top: 32px; font-weight: 700; }

/* ── 免費諮詢 CTA ── */
.prep { list-style: none; margin: 0 0 36px; }
.prep li {
  color: rgba(242,236,227,.85); font-size: 15.5px;
  padding: 13px 0; border-bottom: 1px solid rgba(242,236,227,.16);
}
.prep strong {
  display: inline-block; min-width: 5.5em; margin-right: 12px;
  color: #e2c9a4; font-size: 14px; letter-spacing: .08em;
}

/* ── FAQ ── */
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 18px 52px 18px 22px; font-weight: 700; font-size: 16px; position: relative; user-select: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 22px; top: 15px; color: var(--primary); font-size: 22px; transition: transform .2s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 22px 20px; color: var(--ink-soft); font-size: 15px; }

/* ── 聯絡/地圖 ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact-grid .section-title { text-align: left; }
.contact-list { list-style: none; margin: 20px 0 26px; }
.contact-list li { display: flex; gap: 14px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 15.5px; }
.contact-list strong { color: var(--primary); flex-shrink: 0; min-width: 4.2em; font-size: 14px; letter-spacing: .06em; }
.map-embed iframe { width: 100%; height: 430px; border: 0; border-radius: var(--radius); box-shadow: var(--shadow); }

/* ── Footer ── */
.site-footer { background: var(--accent); color: rgba(242,236,227,.7); padding: 46px 0; text-align: center; font-size: 14.5px; }
.footer-brand { font-size: 20px; font-weight: 900; color: #fff; margin-bottom: 10px; letter-spacing: .12em; }
.footer-brand span { font-family: var(--font-display); font-size: 13px; letter-spacing: .3em; color: #d9c5a8; margin-left: 8px; font-weight: 600; }
.site-footer a { color: #e2c9a4; }
.footer-svc { margin-top: 8px; font-size: 13px; opacity: .8; }
.footer-copy { margin-top: 14px; font-size: 12.5px; opacity: .55; }

/* ── 浮動 LINE 鈕 ── */
.line-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 200;
  display: flex; align-items: center; gap: 8px;
  background: var(--line-green); color: #fff;
  padding: 12px 18px; border-radius: 999px; font-weight: 700;
  box-shadow: 0 8px 24px rgba(6,199,85,.38);
  animation: float-pulse 2.6s ease-in-out infinite;
}
@keyframes float-pulse { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }

/* ── Lightbox ── */
.lightbox {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(26, 24, 21, .9);
  display: flex; align-items: center; justify-content: center; padding: 4%;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: min(1100px, 100%); max-height: 88vh; border-radius: var(--radius); box-shadow: 0 20px 60px rgba(0,0,0,.55); }
.lightbox-close {
  position: absolute; top: 18px; right: 22px;
  background: none; border: 0; color: #fff; font-size: 28px; cursor: pointer; padding: 8px;
}

/* ── 捲動顯示動畫 ── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .line-float { animation: none; }
  .case-img img { transition: none; }
}

/* ═══ RWD:平板 ═══ */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .price-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  /* 案例卡變窄後,5 欄規格會擠到折行,改 3 欄 */
  .case-spec { grid-template-columns: repeat(3, 1fr); }
  .case-spec > div:nth-child(3n+1) { border-left: 0; }
  .case-spec > div:nth-child(n+4) { border-top: 1px solid var(--line); }
  .nav-toggle {
    display: flex; flex-direction: column; gap: 5px; justify-content: center;
    width: 44px; height: 44px; padding: 10px;
    background: none; border: 0; cursor: pointer;
  }
  .nav-toggle span { display: block; height: 2px; background: var(--ink); transition: transform .25s, opacity .25s; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    padding: 10px 4%;
  }
  .main-nav.is-open a { padding: 14px 12px; border-bottom: 1px solid var(--line); font-size: 16px; }
}

/* ═══ RWD:手機 ═══ */
@media (max-width: 768px) {
  .header-inner { gap: 8px; }
  .header-cta { margin-left: auto; }
  .btn-ghost { display: none; }
  .header-cta .btn-line { padding: 8px 14px; font-size: 14px; }
  .logo { font-size: 20px; }
  .logo-en { display: none; }
  .hero {
    padding: 48px 0; min-height: 62vh;
    background:
      linear-gradient(180deg, rgba(26,24,21,.76) 0%, rgba(26,24,21,.58) 100%),
      url("../assets/hero.jpg") center / cover no-repeat;
  }
  .section { padding: 58px 0; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 24px 12px; border-top: 1px solid rgba(242,236,227,.14); }
  .stat:nth-child(-n+2) { border-top: 0; }
  .stat:nth-child(odd) { border-left: 0; }
  .stat strong { font-size: 36px; }
  .works-grid, .process, .team-grid, .review-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .map-embed iframe { height: 320px; }
  .hero-cta .btn { flex: 1; justify-content: center; }
  .prep strong { display: block; min-width: 0; margin-bottom: 2px; }
  .line-float span { display: none; }
  .line-float { padding: 14px; }
}