/* ==========================================================================
   HKAPTA · 各頁面組件樣式
   ========================================================================== */

/* ---------- 首頁 Hero ---------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  background: #141414 url("../images/hero-bg.jpg") center / cover no-repeat;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(18, 18, 18, 0.78) 0%, rgba(18, 18, 18, 0.42) 55%, rgba(18, 18, 18, 0.12) 100%);
}
.hero-inner { position: relative; z-index: 2; padding: 140px 0 170px; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: var(--gold-2);
  font-size: 14px;
  letter-spacing: 0.4em;
}
.hero-kicker::before { content: ""; width: 44px; height: 1px; background: var(--gold-2); }
.hero-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(48px, 7.4vw, 100px);
  line-height: 1.18;
  letter-spacing: 0.08em;
  color: var(--paper);
  margin: 30px 0 26px;
}
.hero-title .gold {
  color: transparent;
  background: linear-gradient(120deg, var(--gold-3), var(--gold-2) 55%, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-sub { max-width: 580px; color: rgba(248, 245, 240, 0.75); font-weight: 300; font-size: 17px; text-wrap: pretty; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 46px; }
.hero-side { display: flex; align-items: center; gap: 22px; margin-top: 54px; }
.hero-vertical {
  position: absolute;
  top: 50%;
  right: 5.5%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: 17px;
  letter-spacing: 0.55em;
  color: rgba(248, 245, 240, 0.42);
  border-right: 1px solid rgba(201, 169, 97, 0.3);
  padding-right: 18px;
}
.hero-meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  border-top: 1px solid rgba(201, 169, 97, 0.28);
  background: rgba(18, 18, 18, 0.55);
  backdrop-filter: blur(8px);
}
.hero-meta-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding: 18px 0; }
.hero-meta-label { font-size: 12px; letter-spacing: 0.3em; color: var(--gold-2); }
.hero-meta-text { font-family: var(--font-serif); font-size: 17px; color: var(--paper); letter-spacing: 0.06em; }

/* ---------- 焦點拍賣卡（首頁 / 拍賣頁） ---------- */
.featured {
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(42, 37, 33, 0.1);
}
.featured-img { position: relative; min-height: 440px; overflow: hidden; }
.featured-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s ease; }
.featured:hover .featured-img img { transform: scale(1.045); }
.featured-body { padding: 56px 58px; display: flex; flex-direction: column; justify-content: center; }
.featured-body h3 { font-family: var(--font-serif); font-size: clamp(26px, 3vw, 36px); font-weight: 700; letter-spacing: 0.05em; margin: 18px 0 26px; }
.featured-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 28px; margin-bottom: 34px; }
.featured-meta dt { font-size: 12px; letter-spacing: 0.25em; color: var(--muted); margin-bottom: 4px; }
.featured-meta dd { font-size: 15px; color: var(--text); font-weight: 500; }
.featured-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.tag {
  display: inline-flex;
  align-self: flex-start;
  padding: 6px 16px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.28em;
}
.tag-solid { background: var(--gold); color: #fff; border-color: var(--gold); }
.tag-muted { border-color: var(--line); color: var(--muted); }

/* ---------- 專場卡片 ---------- */
.session-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; }
.session-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 30px 28px 32px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.session-card:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(42, 37, 33, 0.1); border-color: var(--gold-2); }
.session-date { display: flex; align-items: baseline; gap: 10px; }
.session-date b { font-family: var(--font-num); font-size: 46px; font-weight: 600; color: var(--gold); line-height: 1; }
.session-date span { font-size: 13px; color: var(--muted); letter-spacing: 0.1em; }
.session-card h4 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; letter-spacing: 0.04em; margin: 16px 0 12px; }
.session-meta { font-size: 13.5px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.hall {
  display: inline-block;
  align-self: flex-start;
  margin-top: 16px;
  padding: 3px 12px;
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  background: var(--paper);
}

/* ---------- 拍品卡片（深色 / 淺色兩版） ---------- */
.item-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.item-grid.cols-4 { grid-template-columns: repeat(4, 1fr); gap: 24px; }
.item-card {
  background: #232323;
  border: 1px solid rgba(201, 169, 97, 0.16);
  transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}
.item-card:hover { transform: translateY(-7px); border-color: rgba(201, 169, 97, 0.5); box-shadow: 0 22px 48px rgba(0, 0, 0, 0.45); }
.item-img { aspect-ratio: 4 / 5; overflow: hidden; }
.item-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s ease; }
.item-card:hover .item-img img { transform: scale(1.06); }
.item-body { padding: 22px 24px 26px; }
.item-lot { font-family: var(--font-num); font-style: italic; font-size: 16px; letter-spacing: 0.1em; color: var(--gold-2); }
.item-name { font-family: var(--font-serif); font-size: 19px; font-weight: 700; color: var(--paper); letter-spacing: 0.03em; margin: 8px 0 4px; }
.item-dyn { font-size: 13px; color: var(--muted-dark); }
.item-estimate { margin-top: 14px; padding-top: 13px; border-top: 1px solid rgba(201, 169, 97, 0.16); font-size: 14px; color: var(--gold-2); letter-spacing: 0.04em; }
/* 淺色版本（珍品頁推薦 / 米白背景） */
.item-card.light { background: var(--card); border-color: var(--line); }
.item-card.light:hover { border-color: var(--gold-2); box-shadow: 0 18px 42px rgba(42, 37, 33, 0.1); }
.item-card.light .item-name { color: var(--ink); }
.item-card.light .item-dyn { color: var(--muted); }
.item-card.light .item-lot { color: var(--gold); }
.item-card.light .item-estimate { border-top-color: var(--line); color: #9A741F; }

/* ---------- 數據統計帶 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 8px 28px; }
.stat + .stat { border-left: 1px solid var(--line-dark); }
.stat-num { display: flex; align-items: baseline; gap: 4px; font-family: var(--font-num); font-weight: 600; line-height: 1.15; }
.stat-num .count { font-size: clamp(52px, 5vw, 68px); color: transparent; background: linear-gradient(120deg, var(--gold-3), var(--gold-2)); -webkit-background-clip: text; background-clip: text; }
.stat-num .unit { font-family: var(--font-serif); font-size: 22px; color: var(--gold-2); }
.stat-label { margin-top: 8px; font-size: 14px; letter-spacing: 0.18em; color: var(--muted-dark); }
/* 淺色背景版本（關於頁） */
.stats.light .stat + .stat { border-left-color: var(--line); }
.stats.light .stat-num .count { background: linear-gradient(120deg, var(--gold), var(--gold-2)); -webkit-background-clip: text; background-clip: text; }
.stats.light .stat-num .unit { color: var(--gold); }
.stats.light .stat-label { color: var(--muted); }

/* ---------- 三級審議階梯卡片 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; align-items: start; }
.step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold-2);
  padding: 44px 38px 42px;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.step:hover { transform: translateY(-6px); box-shadow: 0 20px 46px rgba(42, 37, 33, 0.1); }
.step:nth-child(2) { margin-top: 46px; }
.step:nth-child(3) { margin-top: 92px; }
.step-ghost {
  position: absolute;
  top: 16px;
  right: 24px;
  font-family: var(--font-serif);
  font-size: 92px;
  font-weight: 900;
  line-height: 1;
  color: rgba(184, 134, 11, 0.08);
  user-select: none;
}
.step-tag { font-size: 13px; letter-spacing: 0.32em; color: var(--gold); font-weight: 500; }
.step h3 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; letter-spacing: 0.08em; margin: 14px 0 14px; }
.step p { color: var(--muted); font-size: 15px; text-wrap: pretty; }
.step-list { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.step-list li { position: relative; padding-left: 22px; font-size: 14px; color: var(--muted); }
.step-list li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 12px; height: 1px; background: var(--gold-2); }
.steps-quote {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin-top: 72px;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--ink);
}
.steps-quote::before, .steps-quote::after { content: ""; height: 1px; width: min(140px, 14vw); background: linear-gradient(90deg, transparent, var(--gold-2)); }
.steps-quote::after { background: linear-gradient(90deg, var(--gold-2), transparent); }

/* ---------- 新聞卡片 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.news-card {
  display: flex;
  gap: 30px;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 34px 36px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.news-card:hover { transform: translateY(-5px); box-shadow: 0 18px 42px rgba(42, 37, 33, 0.09); border-color: var(--gold-2); }
.news-date { flex-shrink: 0; text-align: center; padding-right: 30px; border-right: 1px solid var(--line); }
.news-day { font-family: var(--font-num); font-size: 48px; font-weight: 600; color: var(--gold); line-height: 1; }
.news-ym { margin-top: 8px; font-size: 12px; letter-spacing: 0.18em; color: var(--muted); }
.news-body { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.news-body h4 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; letter-spacing: 0.03em; line-height: 1.5; }
.news-body p { color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-body .link-more { margin-top: auto; }

/* ---------- 金色行動條 ---------- */
.cta-band {
  position: relative;
  background: radial-gradient(ellipse at 50% 0%, rgba(184, 134, 11, 0.16), transparent 62%), var(--ink);
  text-align: center;
  padding: 88px 0;
  border-top: 1px solid var(--line-dark);
}
.cta-band h2 { font-family: var(--font-serif); font-size: clamp(26px, 3.4vw, 38px); font-weight: 700; letter-spacing: 0.1em; color: var(--paper); }
.cta-band h2 .gold { color: var(--gold-2); }
.cta-band p { margin: 18px auto 36px; max-width: 520px; color: var(--muted-dark); font-size: 15px; }
.cta-band .btn + .btn { margin-left: 16px; }

/* ==========================================================================
   拍賣頁
   ========================================================================== */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 40px; overflow-x: auto; }
.tab-btn {
  position: relative;
  padding: 16px 30px;
  font-size: 16px;
  letter-spacing: 0.14em;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.3s ease;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--ink); font-weight: 500; }
.tab-btn.active::after { content: ""; position: absolute; left: 22px; right: 22px; bottom: -1px; height: 2px; background: var(--gold); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.5s ease; }

.auction-list { display: flex; flex-direction: column; gap: 22px; }
.auction-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 32px 36px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.auction-item:hover { transform: translateX(6px); border-color: var(--gold-2); box-shadow: 0 14px 36px rgba(42, 37, 33, 0.08); }
.auction-item-top { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 10px; }
.auction-item-top h3 { font-family: var(--font-serif); font-size: 22px; font-weight: 700; letter-spacing: 0.04em; }
.auction-meta { display: flex; flex-wrap: wrap; gap: 6px 0; font-size: 14px; color: var(--muted); }
.auction-meta span { display: inline-flex; align-items: center; }
.auction-meta span + span::before { content: "·"; margin: 0 12px; color: var(--gold); }
.auction-meta .em { color: #9A741F; font-weight: 500; }
.auction-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ==========================================================================
   珍品頁
   ========================================================================== */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.category-card { position: relative; height: 440px; overflow: hidden; display: block; }
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s ease; }
.category-card:hover img { transform: scale(1.07); }
.category-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 36px 34px;
  background: linear-gradient(180deg, rgba(18, 18, 18, 0.02) 32%, rgba(18, 18, 18, 0.88));
}
.category-num { font-family: var(--font-num); font-size: 14px; letter-spacing: 0.4em; color: var(--gold-2); }
.category-overlay h3 { font-family: var(--font-serif); font-size: 28px; font-weight: 700; letter-spacing: 0.1em; color: var(--paper); margin: 10px 0 10px; }
.category-overlay p { font-size: 14px; color: rgba(248, 245, 240, 0.75); margin-bottom: 20px; max-width: 92%; text-wrap: pretty; }
.category-card.wide { grid-column: 1 / -1; height: 320px; }
.category-card.wide .category-overlay { padding: 40px 48px; }
.category-card.wide .category-overlay p { max-width: 560px; }

/* ==========================================================================
   關於我們
   ========================================================================== */
.about-intro { display: grid; grid-template-columns: 1.05fr 1fr; gap: 68px; align-items: center; }
.about-frame { position: relative; }
.about-frame img { position: relative; width: 100%; height: 480px; object-fit: cover; z-index: 1; }
.about-frame::after { content: ""; position: absolute; top: 22px; left: 22px; right: -22px; bottom: -22px; border: 1px solid var(--gold-2); z-index: 0; }
.about-text p { color: var(--muted); margin-bottom: 20px; text-wrap: pretty; }
.about-quote {
  margin-top: 30px;
  padding-left: 22px;
  border-left: 3px solid var(--gold-2);
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 0.12em;
  color: var(--ink);
  font-weight: 700;
}
/* 品牌理念（深色） */
.philosophy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.philosophy-item h3 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; letter-spacing: 0.14em; color: var(--gold-2); margin-bottom: 18px; }
.philosophy-item h3 small { display: block; font-family: var(--font-num); font-size: 14px; letter-spacing: 0.3em; color: var(--muted-dark); margin-top: 6px; font-weight: 500; }
.philosophy-item p { color: var(--muted-dark); font-size: 15px; text-wrap: pretty; }
.philosophy-title { font-family: var(--font-serif); font-size: clamp(30px, 4.4vw, 52px); font-weight: 900; letter-spacing: 0.2em; text-align: center; color: var(--paper); margin-bottom: 64px; }
.philosophy-title .gold { color: transparent; background: linear-gradient(120deg, var(--gold-3), var(--gold-2)); -webkit-background-clip: text; background-clip: text; }
/* 核心價值 */
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.value-card { background: var(--card); border: 1px solid var(--line); padding: 44px 30px 40px; text-align: center; transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease; }
.value-card:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(42, 37, 33, 0.09); border-color: var(--gold-2); }
.value-char { font-family: var(--font-serif); font-size: 58px; font-weight: 900; color: var(--gold); line-height: 1.1; }
.value-card h4 { font-family: var(--font-serif); font-size: 19px; font-weight: 700; letter-spacing: 0.16em; margin: 18px 0 12px; }
.value-card p { font-size: 14px; color: var(--muted); text-wrap: pretty; }
/* 時間線 */
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 6px; bottom: 6px; width: 1px; background: linear-gradient(180deg, transparent, var(--gold-2) 12%, var(--gold-2) 88%, transparent); }
.tl-item { position: relative; width: 50%; padding: 0 52px 60px; }
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; }
.tl-item::before {
  content: "";
  position: absolute;
  top: 10px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(184, 134, 11, 0.15);
}
.tl-item:nth-child(odd)::before { right: -6.5px; }
.tl-item:nth-child(even)::before { left: -6.5px; }
.tl-year { font-family: var(--font-num); font-size: 40px; font-weight: 600; color: var(--gold); line-height: 1; }
.tl-item h4 { font-family: var(--font-serif); font-size: 19px; font-weight: 700; margin: 10px 0 8px; letter-spacing: 0.04em; }
.tl-item p { font-size: 14px; color: var(--muted); }

/* ==========================================================================
   專家委員會頁
   ========================================================================== */
.quote {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(21px, 2.8vw, 29px);
  line-height: 2;
  letter-spacing: 0.06em;
  color: var(--text);
  text-wrap: pretty;
}
.quote .gold { color: var(--gold); }
.quote-by { display: block; margin-top: 22px; font-family: var(--font-body); font-size: 14px; letter-spacing: 0.3em; color: var(--muted); }
.expert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.expert-card { background: var(--card); border: 1px solid var(--line); padding: 44px 32px 40px; text-align: center; transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease; }
.expert-card:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(42, 37, 33, 0.09); border-color: var(--gold-2); }
.expert-avatar {
  width: 92px;
  height: 92px;
  margin: 0 auto 22px;
  background: var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--gold-2);
  border-radius: 50%;
}
.expert-card h4 { font-family: var(--font-serif); font-size: 22px; font-weight: 700; letter-spacing: 0.14em; }
.expert-role { font-size: 13px; letter-spacing: 0.22em; color: var(--gold); margin: 8px 0 14px; }
.expert-spec { font-size: 14px; color: var(--muted); padding-top: 14px; border-top: 1px solid var(--line); text-wrap: pretty; }
.advisor-list { border-top: 1px solid var(--line); }
.advisor-row { display: grid; grid-template-columns: 220px 1fr; gap: 36px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.advisor-row h4 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; letter-spacing: 0.08em; display: flex; align-items: center; gap: 14px; }
.advisor-row h4::before { content: ""; width: 8px; height: 8px; background: var(--gold-2); transform: rotate(45deg); flex-shrink: 0; }
.advisor-count { font-family: var(--font-body); font-size: 12px; font-weight: 400; letter-spacing: 0.12em; color: var(--muted); border: 1px solid var(--line); padding: 2px 10px; margin-left: 4px; }
.advisor-names { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 40px; }
.advisor-names li { font-size: 14px; color: var(--muted); line-height: 1.7; }
.advisor-names strong { font-family: var(--font-serif); font-weight: 700; color: var(--ink); margin-right: 12px; font-size: 15.5px; letter-spacing: 0.05em; }
.advisor-row p { font-size: 14.5px; color: var(--muted); text-wrap: pretty; }
/* 表格（通用） */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); }
.table th { background: var(--paper-2); font-weight: 500; font-size: 13.5px; letter-spacing: 0.18em; color: var(--muted); text-align: left; padding: 16px 24px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.table td { padding: 17px 24px; border-bottom: 1px solid var(--line); font-size: 14.5px; color: var(--muted); vertical-align: top; }
.table tr:last-child td { border-bottom: none; }
.table td:first-child { font-family: var(--font-serif); font-weight: 700; color: var(--ink); white-space: nowrap; }

/* ==========================================================================
   服務指南頁
   ========================================================================== */
.service-layout { display: grid; grid-template-columns: 250px 1fr; gap: 60px; align-items: start; }
.side-nav { position: sticky; top: calc(var(--header-h) + 28px); display: flex; flex-direction: column; border-left: 1px solid var(--line); }
.side-nav a { padding: 15px 24px; font-size: 15px; letter-spacing: 0.12em; color: var(--muted); border-left: 2px solid transparent; margin-left: -1px; transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease; }
.side-nav a:hover { color: var(--ink); }
.side-nav a.active { color: var(--gold); font-weight: 500; border-left-color: var(--gold); background: linear-gradient(90deg, rgba(184, 134, 11, 0.07), transparent); }
.service-section { display: none; }
.service-section.active { display: block; animation: fadeIn 0.5s ease; }
.service-intro { color: var(--muted); max-width: 720px; margin-bottom: 12px; text-wrap: pretty; }
.sub-block { margin-top: 44px; }
.sub-block h4 {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.sub-block h4::before { content: ""; width: 20px; height: 1px; background: var(--gold); }
.sub-block p { color: var(--muted); font-size: 15px; text-wrap: pretty; }
.check-list { display: flex; flex-direction: column; gap: 12px; }
.check-list li { position: relative; padding-left: 26px; color: var(--muted); font-size: 15px; }
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 14px;
  height: 8px;
  border-left: 1.5px solid var(--gold);
  border-bottom: 1.5px solid var(--gold);
  transform: rotate(-45deg);
}
.chip-row { display: flex; flex-wrap: wrap; gap: 12px; }
.chip { padding: 8px 20px; border: 1px solid var(--line); background: var(--card); font-size: 14px; letter-spacing: 0.1em; color: var(--text); transition: border-color 0.3s ease, color 0.3s ease; }
.chip:hover { border-color: var(--gold-2); color: var(--gold); }
/* 委託流程 */
.process { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.process li { counter-increment: step; position: relative; background: var(--card); border: 1px solid var(--line); padding: 30px 26px 28px; }
.process li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 600;
  color: transparent;
  background: linear-gradient(120deg, var(--gold), var(--gold-2));
  -webkit-background-clip: text;
  background-clip: text;
  display: block;
  line-height: 1;
  margin-bottom: 14px;
}
.process li h5 { font-family: var(--font-serif); font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: 0.06em; }
.process li p { font-size: 13.5px; color: var(--muted); }
/* FAQ */
.faq-group { margin-top: 40px; }
.faq-group > h4 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.faq-group > h4::before { content: ""; width: 20px; height: 1px; background: var(--gold); }
.faq-item { background: var(--card); border: 1px solid var(--line); margin-bottom: 14px; transition: border-color 0.3s ease; }
.faq-item[open] { border-color: var(--gold-2); }
.faq-item summary {
  padding: 20px 28px;
  cursor: pointer;
  font-weight: 500;
  font-size: 15.5px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--font-num); font-size: 24px; color: var(--gold); font-weight: 500; transition: transform 0.3s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-body { padding: 0 28px 22px; color: var(--muted); font-size: 14.5px; text-wrap: pretty; }

/* ==========================================================================
   聯繫我們頁
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.18fr; gap: 40px; align-items: stretch; }
.info-card { position: relative; overflow: hidden; background: var(--ink); padding: 52px 48px; }
.info-card .ghost-seal {
  position: absolute;
  right: -34px;
  bottom: -34px;
  width: 190px;
  height: 190px;
  background: rgba(158, 43, 37, 0.32);
  border-radius: 12px;
  transform: rotate(-8deg);
  pointer-events: none;
}
.info-card h3 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; color: var(--paper); letter-spacing: 0.12em; margin-bottom: 34px; }
.info-row { display: flex; gap: 20px; padding: 15px 0; border-bottom: 1px solid rgba(201, 169, 97, 0.14); }
.info-row:last-of-type { border-bottom: none; }
.info-label { flex-shrink: 0; width: 76px; font-size: 12.5px; letter-spacing: 0.24em; color: var(--gold-2); padding-top: 3px; }
.info-value { font-size: 15px; color: rgba(248, 245, 240, 0.85); line-height: 1.75; }
.info-value a:hover { color: var(--gold-3); }
.form-card { background: var(--card); border: 1px solid var(--line); padding: 52px 48px; }
.form-card h3 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 8px; }
.form-card > p { color: var(--muted); font-size: 14px; margin-bottom: 34px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: 13px; letter-spacing: 0.16em; color: var(--muted); margin-bottom: 9px; }
.field label .req { color: var(--seal); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--gold-2);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.15);
}
.form-success {
  display: none;
  margin-top: 20px;
  padding: 15px 20px;
  border: 1px solid var(--gold-2);
  background: rgba(184, 134, 11, 0.07);
  color: var(--gold);
  font-size: 14px;
  letter-spacing: 0.06em;
}
/* 地圖示意 */
.map-card { background: var(--card); border: 1px solid var(--line); padding: 18px; }
.map-card svg { width: 100%; height: auto; display: block; }
.map-caption { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 12px 8px; font-size: 13.5px; color: var(--muted); letter-spacing: 0.05em; }
.map-legend { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; }
.map-legend i { width: 12px; height: 12px; border-radius: 50%; background: var(--gold); display: inline-block; box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.2); }
.pin-pulse { transform-box: fill-box; transform-origin: center; animation: pulseRing 2.2s ease-out infinite; }
/* 社交 */
.social-row { display: flex; flex-wrap: wrap; gap: 16px; }
.social-icon {
  width: 54px;
  height: 54px;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--muted);
  background: var(--card);
  transition: color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}
.social-icon:hover { color: var(--gold); border-color: var(--gold-2); transform: translateY(-3px); }
.social-icon svg { width: 22px; height: 22px; fill: currentColor; }

/* ==========================================================================
   響應式 · 組件
   ========================================================================== */
@media (max-width: 1080px) {
  .session-grid { grid-template-columns: repeat(2, 1fr); }
  .item-grid { grid-template-columns: repeat(2, 1fr); }
  .item-grid.cols-4 { grid-template-columns: repeat(3, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 44px; }
  .featured { grid-template-columns: 1fr; }
  .featured-img { min-height: 340px; }
  .about-intro { grid-template-columns: 1fr; gap: 52px; }
  .philosophy-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-grid { grid-template-columns: 1fr; }
  .service-layout { grid-template-columns: 1fr; gap: 40px; }
  .side-nav { position: static; flex-direction: row; border-left: none; border-bottom: 1px solid var(--line); overflow-x: auto; }
  .side-nav a { border-left: none; margin-left: 0; border-bottom: 2px solid transparent; white-space: nowrap; padding: 14px 20px; }
  .side-nav a.active { border-left: none; border-bottom-color: var(--gold); background: none; }
  .hero-vertical { display: none; }
}

@media (max-width: 680px) {
  .item-grid, .item-grid.cols-4 { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .item-body { padding: 16px 15px 18px; }
  .item-name { font-size: 16px; }
  .category-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 4px 14px; }
  .step:nth-child(2), .step:nth-child(3) { margin-top: 0; }
  .steps-quote { letter-spacing: 0.16em; gap: 16px; }
  .featured-body { padding: 34px 26px; }
  .featured-meta { grid-template-columns: 1fr; }
  .auction-item { grid-template-columns: 1fr; align-items: start; }
  .auction-actions { justify-content: flex-start; }
  .form-card, .info-card { padding: 36px 26px; }
  .form-row { grid-template-columns: 1fr; }
  .advisor-row { grid-template-columns: 1fr; gap: 16px; padding: 22px 0; }
  .advisor-names { grid-template-columns: 1fr; gap: 10px; }
  .about-frame img { height: 320px; }
  .about-frame::after { display: none; }
  /* 時間線改爲單列 */
  .timeline::before { left: 8px; }
  .tl-item { width: 100%; padding: 0 0 44px 40px; text-align: left; }
  .tl-item:nth-child(even) { left: 0; }
  .tl-item:nth-child(odd) { text-align: left; }
  .tl-item:nth-child(odd)::before, .tl-item:nth-child(even)::before { left: 2.5px; right: auto; }
  .cta-band .btn + .btn { margin-left: 0; }
  .cta-band .btn { width: 100%; }
  .hero-meta-text { font-size: 14px; }
}