/* 八代町・買一送一共創活動一頁式 —— 侘寂調性 */
:root {
  --paper: #F7F4EE;
  --ink: #2B2B28;
  --earth: #8A7A63;
  --crimson: #B5493A;
  --serif: "Cormorant Garamond", serif;
  --sans: "Noto Sans TC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.9;
  letter-spacing: 0.04em;
  padding-bottom: 64px; /* sticky CTA 空間 */
}
img { max-width: 100%; display: block; }
section { padding: 88px 24px; }
.wrap { max-width: 1080px; margin: 0 auto; }
.wrap.narrow { max-width: 680px; }

h1, h2, h3 { font-weight: 400; letter-spacing: 0.08em; }
h2 { font-size: 1.9rem; margin-bottom: 32px; }
h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 1px;
  background: var(--earth);
  margin-top: 18px;
}
em { font-style: normal; color: var(--crimson); }

.badge {
  font-family: var(--serif);
  font-size: 0.8rem;
  letter-spacing: 0.35em;
  color: var(--earth);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.btn {
  display: inline-block;
  padding: 14px 34px;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  transition: all .25s;
  background: transparent;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-light { border-color: #fff; color: #fff; }
.btn-light:hover { background: #fff; color: var(--ink); }
.btn-accent { background: var(--crimson); border-color: var(--crimson); color: #fff; }
.btn-accent:hover { background: #983B2E; border-color: #983B2E; color: #fff; }
.btn-xl { padding: 18px 48px; font-size: 1.05rem; }

/* ── 第 1 屏 Hero ── */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
  padding: 0 24px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
#hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20,18,14,.25) 0%, rgba(20,18,14,.55) 100%);
  z-index: -1;
}
.hero-badge {
  position: absolute;
  top: 22px;
  right: 22px;
  background: var(--crimson);
  color: #fff;
  padding: 9px 18px;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
}
.hero-sub {
  font-family: var(--serif);
  letter-spacing: 0.4em;
  font-size: 0.85rem;
  margin-bottom: 26px;
}
#hero h1 {
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.5;
  margin-bottom: 30px;
}
.hero-tagline { font-size: 1rem; opacity: .92; margin-bottom: 40px; }
.scroll-hint {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  opacity: .75;
}

/* ── 第 2 屏 先說實話 ── */
#honest { background: #fff; }
#honest p { margin-bottom: 20px; }
#honest .lead {
  font-size: 1.25rem;
  font-weight: 400;
  margin-top: 36px;
  border-left: 2px solid var(--crimson);
  padding-left: 20px;
  line-height: 2.1;
}
.blank-visual {
  border: 1.5px dashed var(--earth);
  background: var(--paper);
  padding: 72px 24px;
  text-align: center;
  margin: 36px 0;
}
.blank-visual p {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--earth);
  margin-bottom: 6px !important;
}
.blank-visual small { color: var(--earth); opacity: .7; letter-spacing: 0.2em; }

/* ── 第 3 屏 三步驟 ── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; margin-top: 16px; }
.step-num {
  font-family: var(--serif);
  font-size: 2rem;
  color: var(--crimson);
  display: block;
  margin-bottom: 10px;
}
.step h3 { font-size: 1.15rem; margin-bottom: 12px; }
.step p { font-size: 0.95rem; color: #55524B; }

/* ── 第 4 屏 Offer ── */
#offer { background: var(--ink); }
.offer-card { text-align: center; color: var(--paper); padding: 24px 0; }
.offer-label {
  font-family: var(--serif);
  letter-spacing: 0.3em;
  font-size: 1rem;
  color: #C9B99F;
  margin-bottom: 30px;
}
.price-was {
  text-decoration: line-through;
  opacity: .55;
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.price-now { font-size: 1.5rem; margin-bottom: 8px; }
.price-now strong { font-size: 2.1rem; font-weight: 500; color: #fff; white-space: nowrap; }
@media (max-width: 480px) { .price-now { font-size: 1.15rem; } .price-now strong { font-size: 1.7rem; } }
.half { font-size: 0.95rem; color: #C9B99F; margin-left: 6px; }
.price-plus { font-size: 1.15rem; color: #E8DFD0; margin: 18px 0 10px; }
.offer-note { font-size: 0.9rem; opacity: .75; margin-bottom: 34px; }
.deadline { margin-top: 22px; font-size: 0.85rem; letter-spacing: 0.15em; color: #C9B99F; }

/* ── 第 5 屏 四棟陳列 ── */
#villas { background: #fff; }
.section-lead { margin-bottom: 48px; color: #55524B; }
.villa-card { margin-bottom: 72px; }
.villa-card:last-child { margin-bottom: 0; }
.villa-photos {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 22px;
}
.villa-photos img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.villa-photos img:first-child { grid-row: span 1; }
.villa-num {
  font-family: var(--serif);
  color: var(--earth);
  margin-right: 14px;
  font-size: 1rem;
  letter-spacing: 0.2em;
}
.villa-text h3 { font-size: 1.35rem; margin-bottom: 10px; }
.villa-text p { color: #55524B; max-width: 640px; }
.villa-tags {
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  color: var(--earth) !important;
  margin-top: 8px;
}

/* ── 第 6 屏 千坪園區 ── */
#estate {
  position: relative;
  min-height: 62vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
}
.estate-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
#estate::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(20,18,14,.42);
  z-index: -1;
}
#estate h2::after { margin-left: auto; margin-right: auto; background: #fff; }
.amenity-line { letter-spacing: 0.2em; font-size: 0.95rem; margin-bottom: 26px; }
.legal { font-size: 0.78rem; opacity: .8; letter-spacing: 0.1em; }

/* ── 第 7 屏 FAQ ── */
details {
  border-bottom: 1px solid #DDD6C8;
  padding: 20px 0;
}
summary {
  cursor: pointer;
  font-weight: 400;
  font-size: 1.02rem;
  list-style: none;
  position: relative;
  padding-right: 30px;
}
summary::after {
  content: "＋";
  position: absolute;
  right: 4px;
  color: var(--earth);
}
details[open] summary::after { content: "－"; }
details p { padding-top: 14px; font-size: 0.95rem; color: #55524B; }

/* ── 第 8 屏 收尾 ── */
#final { background: var(--paper); text-align: center; padding: 110px 24px; }
.final-copy { color: #55524B; margin-bottom: 28px; }
.final-punch { font-size: 1.6rem; margin-bottom: 44px; letter-spacing: 0.1em; }

/* ── footer ── */
footer {
  background: var(--ink);
  color: #A89F8F;
  text-align: center;
  padding: 56px 24px;
  font-size: 0.85rem;
}
.footer-logo { width: 56px; margin: 0 auto 16px; opacity: .9; }
.footer-tag { margin: 6px 0 18px; font-size: 0.8rem; }
.footer-copy { opacity: .6; font-size: 0.75rem; }

/* ── sticky CTA ── */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(43,43,40,.96);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 10px 16px;
  z-index: 50;
  font-size: 0.9rem;
}
.sticky-cta .btn { padding: 9px 22px; font-size: 0.88rem; }

/* ── RWD ── */
@media (max-width: 768px) {
  section { padding: 64px 20px; }
  .steps { grid-template-columns: 1fr; gap: 28px; }
  .villa-photos { grid-template-columns: 1fr 1fr; }
  .villa-photos img { height: 150px; }
  .villa-photos img:first-child { grid-column: span 2; height: 220px; }
  .hero-badge { top: 14px; right: 14px; font-size: 0.72rem; padding: 7px 12px; }
  .sticky-cta span { font-size: 0.78rem; }
}