:root {
  --wood-dark: #7a5c3a;
  --wood: #b08d57;
  --gold: #c9a227;
  --paper: #f7f3ea;
  --card: #fffdf8;
  --tile: #6f7275;
  --ink: #2f2a24;
  --ink-2: #6b6259;
  --line: #e4dcc9;
  --cinnabar: #8c3b2e;
  --serif: "Noto Serif TC", "Source Han Serif TC", "Songti TC", "PMingLiU", serif;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--card);
  font: 400 18px/1.8 var(--sans);
}

main { background: var(--card); }
img { max-width: 100%; }
button, summary { font: inherit; }
p, li, details { font-size: 18px; line-height: 1.8; }

h1, h2 {
  margin: 0 0 20px;
  font-family: "Noto Serif TC", "Source Han Serif TC", "Songti TC", "PMingLiU", serif;
  font-weight: 600;
  letter-spacing: 0.01em;
}

h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.5;
}

h1 {
  max-width: 15ch;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.18;
}

h2 {
  max-width: 22ch;
  font-size: clamp(32px, 3vw, 42px);
  line-height: 1.3;
}

/* 開場：滿版照片由固定首屏高度撐住，載入失敗時不塌陷。 */
.hero {
  position: relative;
  min-height: min(94vh, 900px);
  overflow: hidden;
  background-color: var(--paper);
}

.hero-bg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background-color: var(--paper);
}

.hero-veil {
  position: absolute;
  inset: auto 0 0;
  padding: clamp(34px, 5vw, 72px) 28px;
  color: var(--card);
  background: rgba(0, 0, 0, 0.7);
}

.hero-copy { width: min(1180px, 100%); margin-inline: auto; }
.hero-copy h1 { color: var(--card); }
.hero-lead { margin: 0; color: var(--paper); font-size: clamp(20px, 2vw, 28px); font-weight: 600; }

.photo-credit {
  position: absolute;
  top: 18px;
  right: 20px;
  margin: 0;
  padding: 5px 10px;
  color: var(--card);
  background: rgba(0, 0, 0, 0.58);
  font-size: 18px;
}

.band { padding: clamp(72px, 9vw, 132px) 28px; background-color: var(--card); }
.band-paper { background-color: var(--paper); }
.wrap { width: min(860px, 100%); margin-inline: auto; }
.wrap-wide { width: min(1200px, 100%); }

.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--gold);
  color: var(--wood-dark);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.22em;
}
/* 第 2 塊：實色木質底搭配香爐照片，互動 DOM 維持原結構。 */
.band-demo {
  position: relative;
  isolation: isolate;
  overflow: clip;
  color: var(--card);
  background-color: var(--wood-dark);
}

.band-demo::before {
  position: absolute;
  z-index: -1;
  inset: 0 0 0 auto;
  width: min(38vw, 560px);
  content: "";
  opacity: 0.24;
  background-color: var(--wood-dark);
  background-image: url("assets/photos/photo-censer.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.band-demo h2 { color: var(--card); }
.band-demo .eyebrow { color: var(--gold); }
.band-lead { max-width: 68ch; margin: 0 0 32px; color: var(--paper); }

/* 各內容段前的 16:9 紀實照片帶。 */
.strip {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 0;
  overflow: hidden;
  background-color: var(--paper);
}

.strip img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background-color: var(--paper);
}

.strip figcaption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  margin: 0;
  padding: 5px 10px;
  color: var(--card);
  background: rgba(0, 0, 0, 0.58);
  font-size: 18px;
}

.cards { display: grid; gap: 18px; margin-top: 28px; }
.card, .case-card { border: 1px solid var(--line); background-color: var(--card); }
.card { min-width: 0; padding: 30px; }
.card h3, .case-card h3 { margin-bottom: 0; }

.band-visitor .cards {
  gap: 0;
  border-top: 2px solid var(--gold);
  border-bottom: 1px solid var(--line);
}

.band-visitor .card {
  border: 0;
  border-bottom: 1px solid var(--line);
  background-color: transparent;
}

.band-visitor .card:last-child { border-bottom: 0; }

.card-mark {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  margin-bottom: 18px;
  border: 1px solid var(--gold);
  color: var(--wood-dark);
  font-family: var(--serif);
  font-size: 22px;
}

.band-security .wrap { width: min(940px, 100%); }
.plain-list { margin: 34px 0 0; padding: 0; list-style: none; }
.plain-list li {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--serif);
  font-size: clamp(22px, 2.2vw, 28px);
}
.plain-list li:first-child { border-top: 1px solid var(--line); }
.plain-list li::before { margin-right: 14px; color: var(--gold); content: "●"; }

.metric { border-top: 4px solid var(--gold); background-color: var(--paper); }
.metric strong {
  display: block;
  color: var(--wood-dark);
  font-family: var(--serif);
  font-size: clamp(40px, 4vw, 58px);
  font-weight: 400;
  line-height: 1.2;
}

.fine-print { margin: 20px 0 0; color: var(--ink-2); font-size: 18px; }
.group { margin-top: 56px; padding-top: 42px; border-top: 1px solid var(--line); }
.case-card { overflow: hidden; }
.case-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--paper);
}
.case-card h3 { margin: 20px 24px 4px; }
.case-card .fine-print { margin: 0 24px 22px; }

.price {
  margin: 0;
  padding: 24px 28px;
  border-left: 5px solid var(--gold);
  background-color: var(--card);
  font-family: var(--serif);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 600;
}

.faq details { margin: 0; padding: 20px 0; border-bottom: 1px solid var(--line); background-color: transparent; }
.faq details:first-of-type { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { max-width: 68ch; margin: 12px 0 0; color: var(--ink-2); }

.closing { color: var(--card); background-color: var(--wood-dark); }
.closing h2 { color: var(--card); }
.closing .eyebrow { color: var(--gold); }
.closing .contact-box { display: grid; gap: 28px; justify-items: start; margin-top: 30px; }

.cta {
  display: inline-flex;
  min-height: 64px;
  align-items: center;
  padding: 13px 42px;
  border: 1px solid var(--gold);
  color: var(--ink);
  background-color: var(--gold);
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  text-decoration: none;
}
.cta:hover, .cta:focus-visible { outline: 3px solid var(--card); outline-offset: 4px; }

.qr-placeholder {
  display: grid;
  width: 180px;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--ink);
  background-color: var(--paper);
}

/* 模擬器 */
.page { margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--gold); }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 10px; }

.demo-label {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--gold);
  color: var(--card);
  background-color: var(--wood-dark);
  font-size: 18px;
  font-weight: 600;
}

.reset-button {
  min-height: 48px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  color: var(--ink);
  background-color: var(--card);
  font-weight: 600;
  cursor: pointer;
}
.demo-note { margin: 0 0 20px; color: var(--paper); font-size: 18px; }

.layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; align-items: start; }

.chat-panel {
  display: grid;
  grid-template-rows: auto minmax(360px, 1fr) auto;
  min-width: 0;
  height: 650px;
  overflow: hidden;
  border: 1px solid var(--line);
  background-color: var(--paper);
  color: var(--ink);
}

.chat-heading {
  max-width: none;
  margin: 0;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background-color: var(--card);
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.3;
}

.messages { display: flex; flex-direction: column; gap: 12px; overflow-y: auto; padding: 18px; }
.bubble {
  width: fit-content;
  max-width: 88%;
  padding: 11px 14px;
  overflow-wrap: anywhere;
  border: 1px solid var(--line);
  font-size: 18px;
  line-height: 1.75;
}
.bubble.bot { align-self: flex-start; background-color: var(--card); }
.bubble.user { align-self: flex-end; border-color: var(--wood); background-color: var(--wood); color: var(--card); }

.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 14px;
  border-top: 1px solid var(--line);
  background-color: var(--card);
}
.quick-replies button {
  min-height: 48px;
  max-width: 100%;
  padding: 9px 16px;
  border: 1px solid var(--tile);
  border-radius: 999px;
  color: var(--ink);
  background-color: var(--card);
  cursor: pointer;
}
.quick-replies button:hover,
.quick-replies button:focus-visible,
.reset-button:hover,
.reset-button:focus-visible { color: var(--card); background-color: var(--tile); }

.phone-shell {
  width: 100%;
  min-width: 0;
  max-width: 410px;
  margin-inline: auto;
  padding: 14px;
  border: 3px solid var(--tile);
  border-radius: 30px;
  background-color: var(--tile);
  scroll-margin: 18px;
}
.phone-speaker { width: 78px; height: 5px; margin: 0 auto 11px; border-radius: 999px; background-color: var(--line); }
iframe { display: block; width: 100%; height: 620px; border: 0; border-radius: 17px; background-color: var(--card); }

@media (min-width: 760px) {
  .cards.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cards.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .band-visitor .card { border-right: 1px solid var(--line); border-bottom: 0; }
  .band-visitor .card:last-child { border-right: 0; }
  .closing .contact-box { grid-template-columns: auto auto; align-items: center; }
}

@media (min-width: 980px) {
  .layout { grid-template-columns: minmax(0, 1fr) minmax(320px, 410px); gap: 34px; }
  .chat-panel { height: 700px; }
  iframe { height: 665px; }
  .cards.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .hero { min-height: 86svh; }
  .hero-bg { object-position: center; }
  .hero-veil { padding: 30px 22px 34px; }
  .photo-credit { top: 12px; right: 12px; }
  .band { padding: 68px 22px 76px; }
  .strip figcaption { right: 12px; bottom: 12px; }
  .toolbar { align-items: flex-start; }
  .chat-panel { height: 620px; }
  .case-card h3 { margin-inline: 20px; }
  .case-card .fine-print { margin-inline: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
main h2[id] { scroll-margin-top: 84px; }
/* 頁首、流程、清單、頁尾 */
.site-head {
  position: sticky; top: 0; z-index: 10;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.96);
}
.brand { font-family: var(--serif); font-size: 22px; font-weight: 600; color: var(--ink); text-decoration: none; }
.brand span { margin-left: 10px; color: var(--ink-2); font-family: var(--sans); font-size: 15px; font-weight: 400; }
.site-nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-nav a { color: var(--ink-2); font-size: 16px; text-decoration: none; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--wood-dark); text-decoration: underline; }

.steps { margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { position: relative; padding: 22px 0 22px 62px; border-bottom: 1px solid var(--line); counter-increment: step; }
.steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 22px;
  display: grid; width: 42px; height: 42px; place-items: center;
  border: 1px solid var(--gold); border-radius: 50%;
  color: var(--wood-dark); font-family: var(--serif); font-size: 20px;
}
.steps h3 { margin-bottom: 4px; }
.steps p { margin: 0; color: var(--ink-2); }

.split-lists { display: grid; gap: 24px; margin-top: 20px; }
.split-lists h3 { font-size: 20px; }
.contact-alt { margin: 24px 0 0; color: #efe4d2; }
.contact-alt a { color: #fdf8ef; }

.site-foot { padding: 48px 28px 28px; border-top: 1px solid var(--line); background: var(--paper); }
.foot-inner { display: grid; gap: 28px; }
.foot-inner h3 { font-size: 18px; margin-bottom: 6px; }
.foot-inner p { margin: 0; color: var(--ink-2); font-size: 16px; }
.foot-brand { font-family: var(--serif); font-size: 22px; color: var(--ink) !important; }
.foot-note { max-width: 1200px; margin: 28px auto 0; color: var(--ink-2); font-size: 15px; }

@media (min-width: 760px) {
  .split-lists { grid-template-columns: 1fr 1fr; }
  .foot-inner { grid-template-columns: 2fr 1fr 1fr; }
}

.qr-box { margin: 0; }
.qr-box img { display: block; width: 180px; height: 180px; padding: 12px; background: var(--card); border: 1px solid var(--line); image-rendering: pixelated; }
.qr-box figcaption { margin-top: 8px; color: #efe4d2; font-size: 16px; }

.tiers { margin-top: 24px; }
.tier { display: flex; flex-direction: column; padding: 26px; }
.tier h3 { margin-bottom: 6px; }
.tier-price { margin: 0 0 4px; color: var(--wood-dark); font-family: var(--serif); font-size: 30px; font-weight: 600; }
.tier-note { margin: 0 0 16px; color: var(--ink-2); font-size: 16px; }
.tier-list { margin: 0; padding-left: 20px; }
.tier-list li { margin-bottom: 6px; font-size: 17px; line-height: 1.7; }

.cards.two { align-items: stretch; }
.case-card { display: flex; flex-direction: column; color: inherit; text-decoration: none; }
.case-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.case-card h3 { margin: 20px 24px 6px; }
.case-card .fine-print { margin: 0 24px; flex: 1; }
.case-go { margin: 14px 24px 22px; color: var(--wood-dark); font-weight: 600; }
.case-card:hover, .case-card:focus-visible { border-color: var(--gold); outline: 2px solid var(--gold); outline-offset: -2px; }

.case-card img { height: 220px; aspect-ratio: auto; object-fit: cover; }