/* ==========================================================================
   Jin Chang (晉昌國際) - Knight Frank Corporate Style System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Google Fonts Import (Cinzel for Headers, Inter & Noto Sans TC for Body)
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=Noto+Sans+TC:wght@300;400;500;700;900&display=swap');

:root {
  /* Color Palette - Knight Frank Corporate Dark Style */
  --bg-base: #08090b;
  --bg-surface: #0f1115;
  --bg-surface-opaque: #0d0f12;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-muted: rgba(255, 255, 255, 0.03);
  
  --primary: #c3142f; /* Knight Frank Signature Crimson Red */
  --primary-glow: rgba(195, 20, 47, 0.15);
  --primary-hover: #a61026;
  
  --accent: #f8f9fa; /* Off-White accent */
  --text-main: #f8fafc; /* Lighter Slate Gray */
  --text-muted: #cbd5e1; /* Lighter Slate Gray for better contrast */
  --text-inverse: #ffffff;

  /* Effects & Borders */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.1);
  
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(197, 168, 128, 0.1);
  --glass-blur: blur(12px);
  
  --transition-fast: 0.2s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-normal: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-slow: 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  
  --radius-sm: 2px; /* Sharp, precise borders */
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-full: 9999px;

  /* Fonts */
  --font-serif: 'Cinzel', serif;
  --font-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --header-height: 90px;
}

/* --------------------------------------------------------------------------
   2. Language Switching Display Logic (Genius CSS display switcher)
   -------------------------------------------------------------------------- */
[data-lang="zh"] .lang-en {
  display: none !important;
}

[data-lang="en"] .lang-zh {
  display: none !important;
}

/* --------------------------------------------------------------------------
   3. Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  background-color: var(--bg-base);
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.8);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

body::before {
  display: none;
}

/* Fixed Background Layer (Zero Mobile Zooming Artifacts) */
.fixed-bg-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -999;
  pointer-events: none;
  overflow: hidden;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.fixed-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  position: absolute;
  top: 0;
  left: 0;
}

.fixed-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(8, 9, 11, 0.4), rgba(8, 9, 11, 0.6));
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* --------------------------------------------------------------------------
   4. Typography & Utility Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }
}

.section-padding {
  padding: 120px 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 80px 0;
  }
}

.section-header {
  margin-bottom: 70px;
  max-width: 800px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--text-main);
  position: relative;
  display: inline-block;
  padding-bottom: 8px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--primary);
}

.section-subtitle {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
  display: block;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 700px;
  font-weight: 300;
}

/* Red line divider */
.red-line {
  width: 60px;
  height: 2px;
  background-color: var(--primary);
  margin: 24px 0;
}

.red-line.center {
  margin: 24px auto;
}

/* --------------------------------------------------------------------------
   5. Background Aesthetic & Grid Overlay (Knight Frank Style)
   -------------------------------------------------------------------------- */
.bg-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: -2;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   6. Buttons (Minimal & Sharp)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: var(--text-inverse);
  border: 1px solid var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(195, 20, 47, 0.15);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--text-main);
}

.btn-secondary:hover {
  background: var(--text-main);
  color: var(--text-inverse);
}

.btn-lg {
  padding: 18px 44px;
}

.btn-full-width {
  width: 100%;
}

/* --------------------------------------------------------------------------
   7. Navigation Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background: var(--bg-base);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.site-header.header-scrolled {
  height: 80px;
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-main);
}

.logo-badge {
  height: 32px;
  width: auto;
  background-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: transform var(--transition-fast);
}

.logo-image {
  height: 100%;
  width: auto;
  object-fit: contain;
}

.desktop-nav ul {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

/* Language Switcher Styling */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
}

.lang-btn {
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  padding: 4px 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lang-btn:hover {
  color: var(--primary);
}

.lang-btn.active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

.lang-divider {
  color: var(--border-color);
  user-select: none;
}

/* Mobile Hamburger Menu */
.burger-menu {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: transparent;
}

.burger-menu span {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--text-main);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.burger-menu[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger-menu[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.burger-menu[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 992px) {
  .desktop-nav {
    display: none;
  }
  .burger-menu {
    display: flex;
  }
}

/* --------------------------------------------------------------------------
   8. Mobile Drawer Navigation
   -------------------------------------------------------------------------- */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background: var(--bg-base);
  z-index: 999;
  display: none;
  padding: 60px 40px;
  border-top: 1px solid var(--border-color);
  transform: translateY(-10px);
  opacity: 0;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-drawer.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-drawer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 30px;
  margin-bottom: 60px;
}

.mobile-nav-link {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-main);
  display: block;
}

.mobile-drawer-actions {
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
}

/* --------------------------------------------------------------------------
   9. Hero Section (Full width split minimalist layout)
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 85vh;
  padding-top: var(--header-height);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(to right, rgba(8, 9, 11, 0.5) 30%, rgba(8, 9, 11, 0) 100%);
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

@media (max-width: 992px) {
  .hero-content {
    align-items: center;
  }
}

.hero-badge {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 20px;
  border-left: 3px solid var(--primary);
  padding-left: 12px;
  line-height: 1;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title span {
  display: block;
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 8px;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-title span {
    font-size: 1.3rem;
  }
}

.hero-subtitle {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 20px;
}

@media (max-width: 576px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
}

.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-visual-box {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  border: 1px solid var(--border-color);
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px;
  box-shadow: var(--shadow-md);
  position: relative;
}

.hero-visual-box::before {
  content: '';
  position: absolute;
  top: -8px;
  right: -8px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--primary);
  z-index: -1;
  pointer-events: none;
}

.visual-metric {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
  margin-bottom: 20px;
}

.visual-metric:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.metric-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
}

.metric-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   10. About Us Section (關於我們)
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

.about-philosophy {
  border-left: 2px solid var(--primary);
  padding-left: 32px;
}

@media (max-width: 576px) {
  .about-philosophy {
    padding-left: 20px;
  }
}

.about-philosophy h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-main);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.about-philosophy p {
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 24px;
  font-size: 0.98rem;
}

.capital-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.pillar-card {
  padding: 30px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.pillar-card:hover {
  border-color: var(--primary);
  background-color: var(--bg-base);
  box-shadow: var(--shadow-sm);
}

.pillar-num {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--primary);
  display: block;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.pillar-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
  text-transform: uppercase;
  color: var(--text-main);
}

.pillar-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   9.5 Focus Areas Subsection (投資領域)
   -------------------------------------------------------------------------- */
.hero-focus-section {
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
  padding-top: 50px;
}

/* --------------------------------------------------------------------------
   9.6 Global Footprint Subsection (全球佈局)
   -------------------------------------------------------------------------- */
.hero-global-section {
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
  padding-top: 50px;
}

.hero-global-section .subsection-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-main);
  text-transform: uppercase;
  margin-bottom: 36px;
  position: relative;
  display: inline-block;
  padding-bottom: 8px;
}

.hero-global-section .subsection-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--primary);
}

.global-offices-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 992px) {
  .global-offices-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.office-card {
  padding: 30px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.office-card:hover {
  border-color: var(--border-color);
  background-color: var(--bg-surface-opaque);
  transform: translateY(-2px);
}

.office-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.office-country {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--primary);
  display: block;
  margin-bottom: 4px;
}

.office-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  text-transform: uppercase;
}

.office-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10.5 Focus Areas Section (策略投資領域)
   -------------------------------------------------------------------------- */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 50px;
}

@media (max-width: 768px) {
  .focus-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.focus-card {
  padding: 40px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

.focus-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background-color: var(--primary);
  transition: height var(--transition-fast);
}

.focus-card:hover {
  border-color: var(--border-color);
  background-color: var(--bg-surface-opaque);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.focus-card:hover::before {
  height: 100%;
}

.focus-icon {
  font-size: 2.2rem;
  line-height: 1;
  color: var(--primary);
}

.focus-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-main);
  text-transform: uppercase;
}

.focus-card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.6;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* --------------------------------------------------------------------------
   11. Core Operations Section (核心運作流程)
   -------------------------------------------------------------------------- */
.operations-timeline {
  position: relative;
  max-width: 960px;
  margin: 60px auto 0;
}

.operations-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background-color: var(--border-color);
  transform: translateX(-50%);
}

@media (max-width: 768px) {
  .operations-timeline::before {
    left: 20px;
  }
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 15px 40px;
  box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

@media (max-width: 768px) {
  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding: 15px 0 15px 45px;
  }
}

.timeline-badge {
  position: absolute;
  top: 24px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background-color: var(--bg-base);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  z-index: 10;
}

.timeline-item:nth-child(odd) .timeline-badge {
  right: -15px;
}

.timeline-item:nth-child(even) .timeline-badge {
  left: -15px;
}

@media (max-width: 768px) {
  .timeline-item .timeline-badge {
    left: 5px !important;
    right: auto !important;
  }
}

.timeline-content {
  padding: 28px;
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.timeline-content:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.timeline-stage-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  color: var(--primary);
  text-transform: uppercase;
}

.timeline-stage-title-zh {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-main);
  margin-bottom: 14px;
  display: block;
}

.timeline-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   12. Contact & Legal Notice Section (聯絡與法律合規)
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.contact-channel {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
}

.contact-channel h4 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.contact-channel p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

.contact-channel .detail-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

.contact-form-card {
  padding: 44px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

@media (max-width: 576px) {
  .contact-form-card {
    padding: 30px 20px;
  }
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.form-group {
  margin-bottom: 20px;
  position: relative;
}

.form-label-styled {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-input-styled {
  width: 100%;
  padding: 12px 14px;
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  transition: all var(--transition-fast);
  font-size: 0.92rem;
}

.form-input-styled:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(195, 20, 47, 0.08);
}

.form-input-styled.text-area {
  min-height: 110px;
  resize: vertical;
}

.error-msg {
  display: none;
  font-size: 0.78rem;
  color: var(--primary);
  margin-top: 6px;
  font-weight: 600;
}

.form-group.has-error .form-input-styled {
  border-color: var(--primary);
}

.form-group.has-error .error-msg {
  display: block;
}

.success-message {
  display: none;
  background-color: var(--primary-glow);
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 14px;
  border-radius: var(--radius-sm);
  margin-top: 16px;
  font-size: 0.9rem;
  text-align: center;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   13. Legal Notice Block (密密麻麻法律免責聲明小字)
   -------------------------------------------------------------------------- */
.legal-notice-box {
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
}

.legal-notice-title {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--text-main);
  text-transform: uppercase;
  margin-bottom: 20px;
  text-align: left;
}

.legal-notice-text {
  font-size: 0.72rem;
  line-height: 1.8;
  color: var(--text-muted);
  text-align: justify;
  font-weight: 400;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* --------------------------------------------------------------------------
   14. Footer Section (極簡)
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 50px 0;
  background-color: var(--bg-surface);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 400;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-link {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   15. Animations
   -------------------------------------------------------------------------- */
.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.scroll-reveal.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   16. Multi-Page Section Layout & Display System
   ========================================================================== */
main {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  width: 100%;
  overflow-x: hidden;
}

section {
  position: relative;
  width: 100%;
  height: auto;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ==========================================================================
   17. Project Titan (Vietnam AI Data Center) Subpage Styles
   ========================================================================== */
.project-hero-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 60px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.project-header-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.project-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 50px;
  text-transform: uppercase;
  border: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
}

.confidential-tag {
  border-color: #ef4444;
  color: #f87171;
  background: rgba(239, 68, 68, 0.1);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.2);
}

.badge-tier1 {
  border-color: #3b82f6;
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.1);
}

.badge-location {
  border-color: #10b981;
  color: #34d399;
  background: rgba(16, 185, 129, 0.1);
}

.badge-status {
  border-color: #f59e0b;
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.1);
}

.project-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 16px;
}

.project-title small {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--primary);
  display: inline-block;
  margin-top: 4px;
}

.project-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  margin-top: 28px;
}

@media (max-width: 992px) {
  .project-hero-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.project-intro-text p {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 24px;
}

.project-key-indicators {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}

@media (max-width: 768px) {
  .project-key-indicators {
    grid-template-columns: 1fr;
  }
}

.indicator-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.indicator-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.indicator-pill strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 700;
}

.indicator-pill span {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.project-hero-image-wrap {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.project-featured-img {
  width: 100%;
  height: 100%;
  max-height: 380px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-normal);
}

.project-hero-image-wrap:hover .project-featured-img {
  transform: scale(1.03);
}

.img-caption-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 20px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--primary);
  text-transform: uppercase;
}

/* 5 Core Empowerment Advantages */
.project-advantages-section {
  margin-bottom: 70px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

@media (max-width: 768px) {
  .advantages-grid {
    grid-template-columns: 1fr;
  }
}

.advantage-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 30px;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.advantage-card-full {
  grid-column: 1 / -1;
}

.advantage-card:hover {
  border-color: var(--primary);
  background: var(--bg-surface-opaque);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.advantage-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.advantage-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.advantage-desc {
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.advantage-highlight {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  padding: 8px 12px;
  background: rgba(212, 175, 55, 0.1);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Technical Specification Matrix */
.project-specs-section {
  margin-bottom: 70px;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 40px;
}

@media (max-width: 992px) {
  .specs-grid {
    grid-template-columns: 1fr;
  }
}

.spec-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 32px;
}

.spec-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.spec-num {
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--primary);
}

.spec-card-header h4 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px 0;
}

.spec-list li {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 16px;
  position: relative;
  padding-left: 20px;
}

.spec-list li::before {
  content: '✦';
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--primary);
  font-size: 0.8rem;
}

.spec-list li strong {
  color: var(--text-main);
  display: block;
  margin-bottom: 2px;
}

.telecom-sub-list {
  margin-top: 10px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--primary);
  font-size: 0.86rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Fiscal Incentives Box */
.fiscal-incentives-box {
  background: rgba(245, 158, 11, 0.05);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.fiscal-incentives-box h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fbbf24;
  margin-bottom: 14px;
}

.incentive-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.incentive-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.inc-badge {
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  background: #f59e0b;
  color: #000;
  border-radius: 4px;
  white-space: nowrap;
}

.incentive-item p {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-main);
  margin: 0;
}

/* Site Options Comparison Matrix Table */
.site-matrix-container {
  margin-top: 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
}

.site-matrix-header {
  margin-bottom: 24px;
}

.site-matrix-header h4 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.site-matrix-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.table-responsive-wrapper {
  overflow-x: auto;
  margin-bottom: 30px;
}

.specs-matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.specs-matrix-table th,
.specs-matrix-table td {
  padding: 16px 20px;
  border: 1px solid var(--border-color);
  vertical-align: top;
}

.specs-matrix-table th {
  background: rgba(0, 0, 0, 0.4);
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--text-main);
}

.highlight-col-a {
  border-top: 3px solid #3b82f6 !important;
}

.highlight-col-b {
  border-top: 3px solid #10b981 !important;
}

.pill-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.pill-a {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.pill-b {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.metric-highlight {
  font-size: 1.1rem;
  color: var(--primary);
}

/* Geological Advantage Card */
.geological-advantage-card {
  background: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.geological-advantage-card h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #34d399;
  margin-bottom: 16px;
}

.geo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 768px) {
  .geo-grid {
    grid-template-columns: 1fr;
  }
}

.geo-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 6px;
}

.geo-item p {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}

/* OPEX & Fast Track Section */
.opex-section {
  margin-top: 40px;
}

.opex-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.opex-header h4 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.opex-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 992px) {
  .opex-cards-grid {
    grid-template-columns: 1fr;
  }
}

.opex-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.opex-card-highlight {
  border-color: var(--primary);
  background: rgba(212, 175, 55, 0.04);
}

.opex-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.opex-card h5 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.opex-price {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.opex-price small {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.opex-card p {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}

.protocol-checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.proto-item {
  font-size: 0.85rem;
  line-height: 1.5;
}

.proto-item span {
  display: block;
  color: var(--text-muted);
}

.proto-item strong {
  color: var(--primary);
  font-weight: 700;
}

/* Forward Purchase Card */
.forward-purchase-card {
  background: linear-gradient(135deg, rgba(20, 24, 33, 0.95), rgba(10, 12, 18, 0.98));
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 50px;
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.12);
}

.fp-badge {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--primary);
  display: block;
  margin-bottom: 8px;
}

.fp-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
}

.fp-body p {
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 16px;
}

.fp-body p:last-child {
  margin-bottom: 0;
}

/* Project Contact Box */
.project-contact-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

@media (max-width: 992px) {
  .project-contact-box {
    flex-direction: column;
    align-items: flex-start;
  }
}

.pc-subtitle {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}

.pc-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.pc-content p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 650px;
}

.pc-email {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

.pc-email a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.pc-email a:hover {
  text-decoration: underline;
  color: var(--text-main);
}

/* ==========================================================================
   18. Legal Documents (Terms of Use & Privacy Policy) Styles
   ========================================================================== */
.legal-doc-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 50px;
  box-shadow: var(--shadow-lg);
  max-width: 1000px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .legal-doc-card {
    padding: 28px 20px;
  }
}

.legal-doc-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 36px;
}

.legal-doc-body {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.legal-clause {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color-muted);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  transition: border-color var(--transition-fast);
}

.legal-clause:hover {
  border-color: var(--border-color);
  background: rgba(0, 0, 0, 0.35);
}

.clause-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.4;
}

.legal-clause p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 12px;
}

.legal-clause p:last-child {
  margin-bottom: 0;
}

.legal-clause code {
  background: rgba(212, 175, 55, 0.15);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
}