/* ============ 金滙控股集團 官網樣式（參照公司草稿設計體系） ============ */
@font-face {
  font-family: 'IBMPlexSerif';
  src: url('../assets/IBMPlexSerif-Regular.ttf') format('truetype');
  font-weight: 400;
}
@font-face {
  font-family: 'IBMPlexSerif';
  src: url('../assets/IBMPlexSerif-Bold.ttf') format('truetype');
  font-weight: 700;
}
@font-face {
  font-family: 'WorkSans';
  src: url('../assets/WorkSans-Regular.ttf') format('truetype');
  font-weight: 400;
}
@font-face {
  font-family: 'WorkSans';
  src: url('../assets/WorkSans-Bold.ttf') format('truetype');
  font-weight: 700;
}

:root {
  --navy: #0a1f44;
  --navy-light: #162a56;
  --navy-lighter: #1e3a6e;
  --gold: #c5a572;
  --gold-light: #d4b88a;
  --gold-dark: #a8884f;
  --bg: #ffffff;
  --bg2: #f7f8fa;
  --bg3: #eef1f6;
  --ink: #1a2238;
  --muted: #6b7280;
  --rule: #e2e6ee;
  --white: #ffffff;
  --font-serif: 'IBMPlexSerif', 'Songti SC', 'STSong', Georgia, serif;
  --font-sans: 'WorkSans', 'PingFang SC', 'Microsoft YaHei', -apple-system, 'Helvetica Neue', sans-serif;
  --max: 1200px;
  --radius: 8px;
  --shadow: 0 2px 16px rgba(10, 31, 68, 0.08);
  --shadow-lg: 0 8px 40px rgba(10, 31, 68, 0.12);
  --transition: 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

/* === Reusable === */
.container { max-width: var(--max); margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; }
.section-title {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 0.5rem;
}
.section-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 3rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.gold-line {
  width: 60px;
  height: 3px;
  background: var(--gold);
  margin: 1rem auto 0;
  border-radius: 2px;
}
.btn {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: none;
  letter-spacing: 0.02em;
}
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(197,165,114,0.4); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid var(--white); }
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-light); transform: translateY(-2px); }

/* === Navigation（參照金控集團官網：白色頂欄 + 高亮下劃線） === */
nav {
  position: sticky;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--white);
  box-shadow: 0 1px 0 var(--rule), 0 2px 12px rgba(10, 31, 68, 0.06);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.65rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.logo-icon {
  width: 42px; height: 42px;
  border-radius: 8px;
  background: var(--navy);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700; font-size: 1.25rem;
  color: var(--gold);
  flex-shrink: 0;
  overflow: hidden;
}
.logo-icon img { width: 100%; height: 100%; object-fit: cover; display: block; }
.logo-text { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 700; color: var(--navy); line-height: 1.2; }
.logo-text span { display: block; font-size: 0.68rem; font-weight: 400; color: var(--gold-dark); letter-spacing: 0.08em; }
.nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; }
.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.4rem 0;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold-dark); }
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 3px;
  background: var(--gold);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.lang-toggle {
  background: transparent;
  border: 1px solid var(--gold-dark);
  color: var(--gold-dark);
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  font-weight: 600;
}
.lang-toggle:hover { background: var(--gold-dark); color: var(--white); border-color: var(--gold-dark); }
.mobile-menu-btn { display: none; background: none; border: none; color: var(--navy); font-size: 1.5rem; cursor: pointer; }

/* === Hero (首頁) === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; background: url('../assets/hero_bg_2560x1440.jpg') center/cover no-repeat; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(10,31,68,0.85) 0%, rgba(10,31,68,0.6) 50%, rgba(10,31,68,0.75) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 860px; padding: 0 2rem; }
.hero-tag {
  display: inline-block;
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(197,165,114,0.4);
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 1.2rem;
}
.hero h1 .gold-text { color: var(--gold); }
.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2.5rem;
  max-width: 640px;
  margin-left: auto; margin-right: auto;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* === 子頁橫幅 === */
.page-hero {
  position: relative;
  min-height: 62vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.page-hero .hero-overlay { background: linear-gradient(135deg, rgba(10,31,68,0.88) 0%, rgba(10,31,68,0.65) 55%, rgba(10,31,68,0.8) 100%); }
.page-hero .hero-content { max-width: 800px; }
.page-hero h1 { font-family: var(--font-serif); font-size: 2.8rem; font-weight: 700; color: var(--white); margin-bottom: 0.6rem; }
.page-hero .en-sub { color: var(--gold-light); font-size: 0.85rem; letter-spacing: 0.25em; text-transform: uppercase; margin-bottom: 1rem; }
.page-hero p { color: rgba(255,255,255,0.85); font-size: 1.05rem; max-width: 640px; margin: 0 auto; }

/* === 數據帶 === */
.stats-band { background: var(--navy); padding: 3.5rem 0; }
.stats-band .section-subtitle { margin-bottom: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.stat-item {
  text-align: center;
  padding: 1.5rem 1rem;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  border-top: 3px solid var(--gold);
}
.stat-num { font-family: var(--font-serif); font-size: 2.2rem; font-weight: 700; color: var(--white); }
.stat-num span { color: var(--gold); font-size: 1.5rem; }
.stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-top: 0.3rem; }

/* 亮色背景上的統計（關於頁） */
.stats-on-light .stat-item { background: var(--white); box-shadow: var(--shadow); }
.stats-on-light .stat-num { color: var(--navy); }
.stats-on-light .stat-label { color: var(--muted); }

/* === 關於 / 圖文排版 === */
.about { background: var(--bg2); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-text h2 { font-family: var(--font-serif); font-size: 2.2rem; font-weight: 700; color: var(--navy); margin-bottom: 0.3rem; }
.about-text .gold-line { margin: 1rem 0 1.5rem; }
.about-text p { color: var(--muted); margin-bottom: 1rem; font-size: 0.98rem; line-height: 1.8; }

/* === 金控式業務板塊大卡（圖 + 標題 + 查看詳情） === */
.sector-card {
  display: block;
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.sector-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.sector-img { height: 220px; overflow: hidden; }
.sector-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s ease; }
.sector-card:hover .sector-img img { transform: scale(1.05); }
.sector-body { padding: 1.8rem 1.6rem 2rem; text-align: center; }
.sector-body h3 { font-family: var(--font-serif); font-size: 1.35rem; font-weight: 700; color: var(--navy); margin-bottom: 0.25rem; }
.sector-body .sub-en { font-size: 0.75rem; color: var(--gold-dark); letter-spacing: 0.06em; margin-bottom: 0.9rem; }
.sector-body p { color: var(--muted); font-size: 0.9rem; line-height: 1.7; margin-bottom: 1.4rem; text-align: justify; }
.sector-btn {
  display: inline-block;
  padding: 0.45rem 1.6rem;
  border: 1px solid var(--gold-dark);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.85rem;
  transition: var(--transition);
}
.sector-card:hover .sector-btn { background: var(--navy); border-color: var(--navy); color: var(--white); }

/* === 集團動態（新聞欄：主新聞 + 列表） === */
.news-section { background: var(--bg2); }
.news-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.5rem; align-items: stretch; }
.news-feature {
  display: block;
  text-decoration: none;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--rule);
  transition: var(--transition);
}
.news-feature:hover { box-shadow: var(--shadow-lg); }
.news-feature .news-img { height: 260px; overflow: hidden; }
.news-feature .news-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-feature .news-body { padding: 1.6rem 1.8rem 1.8rem; }
.news-date {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--gold-dark);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.news-feature h3 { font-family: var(--font-serif); font-size: 1.25rem; color: var(--navy); line-height: 1.5; margin-bottom: 0.6rem; }
.news-feature p { color: var(--muted); font-size: 0.9rem; line-height: 1.7; }
.news-list { background: var(--white); border-radius: var(--radius); border: 1px solid var(--rule); box-shadow: var(--shadow); padding: 0.6rem 1.8rem; display: flex; flex-direction: column; }
.news-item { display: flex; align-items: baseline; gap: 1.2rem; padding: 1.15rem 0; border-bottom: 1px dashed var(--rule); text-decoration: none; }
.news-item:last-child { border-bottom: none; }
.news-item:hover .news-item-title { color: var(--gold-dark); }
.news-item-date { font-size: 0.8rem; color: var(--muted); white-space: nowrap; font-family: var(--font-serif); }
.news-item-date b { display: block; font-size: 1.15rem; color: var(--navy); font-weight: 700; }
.news-item-title { color: var(--ink); font-size: 0.93rem; line-height: 1.55; transition: var(--transition); }

/* === 卡片（服務/板塊） === */
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--rule);
  display: block;
  text-decoration: none;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
.service-card-top { padding: 2.2rem 2rem 1.4rem; position: relative; }
.service-icon {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.2rem;
}
.service-icon svg { width: 28px; height: 28px; }
.service-card h3 { font-family: var(--font-serif); font-size: 1.35rem; font-weight: 700; color: var(--navy); margin-bottom: 0.3rem; }
.badge-soon {
  display: inline-block;
  vertical-align: middle;
  margin-left: 0.5rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: rgba(197,165,114,0.15);
  border: 1px solid var(--gold);
  color: var(--gold-dark);
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.service-card .sub-en { font-size: 0.8rem; color: var(--gold); letter-spacing: 0.05em; margin-bottom: 0.8rem; }
.service-card p { color: var(--muted); font-size: 0.92rem; line-height: 1.7; margin-bottom: 1.2rem; }
.service-card ul { list-style: none; padding: 0 2rem 2.2rem; }
.service-card ul li {
  padding: 0.4rem 0;
  font-size: 0.88rem;
  color: var(--ink);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.service-card ul li::before { content: '✦'; color: var(--gold); font-size: 0.75rem; margin-top: 0.25rem; flex-shrink: 0; }
.card-link-more { display: inline-block; margin: 0 2rem 2rem; color: var(--gold-dark); font-weight: 700; font-size: 0.88rem; }

/* === 水質成分與產品檔案 === */
.mineral-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2rem; margin-top: 1rem; }
.mineral-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.2rem 2.2rem 2rem;
}
.mineral-card h3 {
  font-family: var(--font-serif);
  color: var(--navy);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.mineral-card h3::before {
  content: '';
  width: 6px; height: 22px;
  background: var(--gold);
  border-radius: 3px;
  flex-shrink: 0;
}
.mineral-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.mineral-table th {
  text-align: left;
  color: var(--gold-dark);
  font-weight: 600;
  padding: 0.5rem 0;
  border-bottom: 2px solid rgba(197,165,114,0.45);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}
.mineral-table th:last-child { text-align: right; }
.mineral-table td {
  padding: 0.52rem 0;
  border-bottom: 1px dashed var(--rule);
  color: var(--ink);
}
.mineral-table tr:last-child td { border-bottom: none; }
.mineral-table td:last-child { text-align: right; color: var(--navy); }
.mineral-note { margin-top: 1rem; font-size: 0.78rem; color: var(--muted); }
.fact-list { list-style: none; }
.fact-list li {
  display: flex;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 0.9rem;
  line-height: 1.55;
}
.fact-list li:last-child { border-bottom: none; }
.fact-list li b {
  min-width: 92px;
  color: var(--gold-dark);
  font-weight: 600;
  flex-shrink: 0;
}
.fact-list li span { color: var(--ink); }

/* === 深色 Why 區 === */
.why { background: var(--navy); color: var(--white); }
.why .section-title { color: var(--white); }
.why .section-subtitle { color: rgba(255,255,255,0.7); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; margin-top: 1rem; }
.why-item { text-align: center; }
.why-icon {
  width: 70px; height: 70px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.5rem;
}
.why-icon svg { width: 32px; height: 32px; }
.why-item h3 { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 700; color: var(--gold); margin-bottom: 0.8rem; }
.why-item p { color: rgba(255,255,255,0.7); font-size: 0.92rem; line-height: 1.7; }

/* === 案例卡 === */
.case-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--rule);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-img { width: 100%; height: 180px; object-fit: cover; display: block; }
.case-body { padding: 1.5rem; }
.case-tag {
  display: inline-block;
  background: var(--bg3);
  color: var(--navy);
  font-size: 0.75rem;
  padding: 0.25rem 0.7rem;
  border-radius: 4px;
  margin-bottom: 0.8rem;
  font-weight: 600;
}
.case-body h4 { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.5rem; }
.case-body p { color: var(--muted); font-size: 0.88rem; line-height: 1.6; }
.case-quote {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-style: italic;
  color: var(--ink);
  font-size: 0.85rem;
}

/* === 地區項目區塊 === */
.region-block { margin-bottom: 3.2rem; }
.region-title { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.6rem; }
.region-title h3 { font-family: var(--font-serif); color: var(--navy); font-size: 1.45rem; font-weight: 700; }
.region-title .line { flex: 1; height: 1px; background: var(--rule); }
.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 0.9rem;
  font-weight: 600;
}
.tag-gold { background: rgba(197,165,114,0.15); color: var(--gold-dark); border: 1px solid rgba(197,165,114,0.45); }
.tag-navy { background: var(--bg3); color: var(--navy); }
.tag-exclusive { background: linear-gradient(135deg, var(--gold), var(--gold-dark)); color: var(--white); }

/* === 產品（巴馬本源 BAMA ORIGIN） === */
.product-hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 4rem; align-items: center; }
.product-visual {
  background: linear-gradient(160deg, #0e4d45, var(--navy-light) 60%, var(--navy));
  border-radius: var(--radius);
  padding: 3.5rem 2.5rem;
  color: var(--white);
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.product-visual .bottle { font-size: 4rem; margin-bottom: 1rem; filter: drop-shadow(0 12px 18px rgba(0,0,0,0.35)); }
.product-visual h3 { font-family: var(--font-serif); font-size: 1.9rem; letter-spacing: 0.15em; color: var(--white); }
.product-visual .sub { color: #9fd8cc; font-size: 0.8rem; letter-spacing: 0.2em; margin-bottom: 1.5rem; text-transform: uppercase; }
.ph-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; margin-top: 1.6rem; }
.ph-card { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius); padding: 0.9rem 0.5rem; }
.ph-card b { display: block; font-family: var(--font-serif); font-size: 1.25rem; color: var(--gold-light); }
.ph-card span { font-size: 0.75rem; color: rgba(255,255,255,0.75); }

/* === 時間線（未來藍圖） === */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: "";
  position: absolute; left: 0.5rem; top: 0.4rem; bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(var(--gold), rgba(197,165,114,0.2));
}
.tl-item { position: relative; margin-bottom: 2.2rem; }
.tl-item::before {
  content: "";
  position: absolute; left: -1.9rem; top: 0.5rem;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gold);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--gold);
}
.tl-item h4 { font-family: var(--font-serif); color: var(--navy); font-size: 1.15rem; margin-bottom: 0.3rem; }
.tl-item p { color: var(--muted); font-size: 0.92rem; }

/* === 流程步驟 === */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; counter-reset: step; }
.step {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.9rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 700;
  color: rgba(197,165,114,0.4);
  margin-bottom: 0.5rem;
}
.step h4 { font-family: var(--font-serif); color: var(--navy); font-size: 1.05rem; margin-bottom: 0.35rem; }
.step p { color: var(--muted); font-size: 0.85rem; }

/* === 集團架構（公司名稱列表） === */
.company-list {
  max-width: 640px;
  margin: 2.5rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.company-item {
  background: var(--white);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  padding: 1.05rem 1.6rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.company-item:hover { transform: translateX(6px); border-left-color: var(--navy); }
.company-name {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--navy);
}
.company-en { font-size: 0.78rem; color: var(--muted); letter-spacing: 0.03em; margin-top: 0.15rem; }

/* === 聯繫我們 === */
.contact { position: relative; background: url('../assets/contact_bg_2560x1440.jpg') center/cover no-repeat; }
.contact-overlay { position: absolute; inset: 0; background: rgba(10,31,68,0.92); }
.contact .container { position: relative; z-index: 2; }
.contact .section-title { color: var(--white); }
.contact .section-subtitle { color: rgba(255,255,255,0.7); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; margin-top: 1rem; }
.contact-info h3 { font-family: var(--font-serif); font-size: 1.5rem; color: var(--gold); margin-bottom: 1.5rem; }
.contact-info-item { display: flex; gap: 1rem; margin-bottom: 1.5rem; align-items: flex-start; }
.contact-info-icon {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(197,165,114,0.15);
  border: 1px solid rgba(197,165,114,0.4);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info-icon svg { width: 20px; height: 20px; }
.contact-info-item h4 { color: var(--white); font-size: 0.9rem; margin-bottom: 0.2rem; }
.contact-info-item p { color: rgba(255,255,255,0.65); font-size: 0.88rem; line-height: 1.5; }

.contact-form { background: var(--white); border-radius: var(--radius); padding: 2.5rem; box-shadow: var(--shadow-lg); }
.contact-form h3 { font-family: var(--font-serif); font-size: 1.4rem; color: var(--navy); margin-bottom: 0.3rem; }
.contact-form .form-desc { font-size: 0.88rem; color: var(--muted); margin-bottom: 1.5rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.82rem; color: var(--ink); margin-bottom: 0.35rem; font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--bg2);
  transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(197,165,114,0.12);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.form-submit {
  width: 100%;
  padding: 0.9rem;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.5rem;
}
.form-submit:hover { background: var(--gold); color: var(--navy); }
.form-success { display: none; text-align: center; padding: 2rem 0; }
.form-success .check-circle {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #e8f5e9;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
}
.form-success .check-circle svg { width: 32px; height: 32px; }
.form-success h4 { font-family: var(--font-serif); font-size: 1.2rem; color: var(--navy); margin-bottom: 0.5rem; }
.form-success p { color: var(--muted); font-size: 0.9rem; }

/* === CTA 帶 === */
.cta-band { background: var(--navy); border-radius: var(--radius); color: var(--white); text-align: center; padding: 4rem 2rem; }
.cta-band h2 { font-family: var(--font-serif); font-size: 1.9rem; margin-bottom: 0.8rem; }
.cta-band p { color: rgba(255,255,255,0.75); margin-bottom: 1.8rem; }

/* === Footer（參照金控集團官網：淺色頁腳 + 深色版權條） === */
footer.site-footer {
  background: #f4f6f9;
  color: #55607a;
  padding: 3.2rem 0 0;
  border-top: 1px solid var(--rule);
}
.site-footer .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.6rem; }
.site-footer .footer-brand .logo { margin-bottom: 1rem; }
.site-footer .footer-brand p { font-size: 0.88rem; line-height: 1.75; max-width: 340px; margin-bottom: 1.1rem; }
.site-footer .footer-contact { list-style: none; font-size: 0.86rem; line-height: 2; }
.site-footer .footer-contact a { color: #55607a; text-decoration: none; transition: var(--transition); }
.site-footer .footer-contact a:hover { color: var(--gold-dark); }
.site-footer .footer-col h4 {
  color: var(--navy);
  font-size: 0.95rem;
  margin-bottom: 1.1rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 0.55rem;
}
.site-footer .footer-col h4::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 28px; height: 3px;
  background: var(--gold);
  border-radius: 2px;
}
.site-footer .footer-col ul { list-style: none; }
.site-footer .footer-col ul li { margin-bottom: 0.55rem; }
.site-footer .footer-col ul li a { color: #55607a; text-decoration: none; font-size: 0.88rem; transition: var(--transition); }
.site-footer .footer-col ul li a:hover { color: var(--gold-dark); padding-left: 4px; }
.footer-bottom-bar { background: var(--navy); color: rgba(255,255,255,0.75); }
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 1.1rem 2rem;
  font-size: 0.82rem;
}
.footer-bottom-inner a { color: rgba(255,255,255,0.75); text-decoration: none; margin-left: 1.4rem; transition: var(--transition); }
.footer-bottom-inner a:hover { color: var(--gold); }

/* === Animations === */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* === Responsive === */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--white);
    box-shadow: 0 12px 24px rgba(10,31,68,0.12);
    padding: 1.5rem 2rem;
    gap: 1.2rem;
  }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .page-hero h1 { font-size: 2rem; }
  .section { padding: 4rem 0; }
  .section-title { font-size: 1.8rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .product-hero { grid-template-columns: 1fr; gap: 2.5rem; }
  .services-grid, .grid-4, .steps { grid-template-columns: 1fr; }
  .grid-3, .why-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .mineral-grid { grid-template-columns: 1fr; }
  .site-footer .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .org-branches { grid-template-columns: 1fr; max-width: 420px; }
}
@media (max-width: 500px) {
  .container { padding: 0 1.2rem; }
  .hero h1 { font-size: 1.8rem; }
  .stat-num { font-size: 1.8rem; }
}