/* ==========================================================================
   孝青食品香料 (Hsiao-Ching Flavour Tech) - 國際高雅 B2B 品牌視覺 (全手機版響應式)
   ========================================================================== */

:root {
  --color-pure-white: #FFFFFF;
  --color-bg-light: #F8FAFC;
  --color-header-blue: #1D2D44;   /* 深邃科技藍 #1D2D44 */
  --color-gold-primary: #C9A063;  /* 奢華金 */
  --color-gold-dark: #B8860B;
  --color-gold-light: #F5D061;
  --color-amber-bg: #FDF8EF;      /* 表格 Hover 淡金黃色光暈 */
  --color-amber-text: #B8860B;
  
  --color-text-dark: #0F172A;
  --color-text-body: #334155;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;

  --font-family: 'Plus Jakarta Sans', 'Noto Sans TC', system-ui, -apple-system, sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 8px 25px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 15px 35px rgba(201, 160, 99, 0.18);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-pure-white);
  color: var(--color-text-body);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--color-header-blue);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  border-bottom: 2px solid var(--color-gold-primary);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-img-transparent {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.3));
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #FFFFFF;
  white-space: nowrap;
}

.logo-subtitle {
  font-size: 0.65rem;
  color: var(--color-gold-light);
  letter-spacing: 0.5px;
  font-weight: 600;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 14px;
  list-style: none;
  align-items: center;
  flex-wrap: nowrap;
}

.nav-link {
  font-size: 0.84rem;
  font-weight: 600;
  color: #E2E8F0;
  transition: var(--transition-smooth);
  padding: 6px 0;
  white-space: nowrap;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.mobile-toggle-btn {
  display: none;
  color: #FFFFFF;
  font-size: 1.5rem;
  padding: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-dark));
  color: #FFFFFF;
  padding: 8px 18px;
  border-radius: 25px;
  font-weight: 700;
  font-size: 0.85rem;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 15px rgba(201, 160, 99, 0.35);
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #F5D061, var(--color-gold-primary));
}

.btn-sample-cta {
  background: #FFFFFF;
  color: var(--color-header-blue);
  padding: 8px 16px;
  border-radius: 25px;
  font-weight: 800;
  font-size: 0.85rem;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-gold-primary);
  white-space: nowrap;
}

.btn-sample-cta:hover {
  background: var(--color-amber-bg);
  color: var(--color-gold-dark);
}

.btn-outline {
  border: 1px solid var(--color-gold-primary);
  color: #FFFFFF;
  padding: 8px 16px;
  border-radius: 25px;
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-outline:hover {
  background: rgba(201, 160, 99, 0.2);
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 90px;
  overflow: hidden;
  background: #000000;
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1.0;
  filter: none;
  z-index: 1;
}

.hero-canvas-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.hero-gradient-overlay {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 4;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

.hero-badge-group {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.slogan-pill {
  background: rgba(29, 45, 68, 0.85);
  border: 1px solid var(--color-gold-primary);
  color: #FFFFFF;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 700;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.hero-title {
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.hero-title-highlight {
  background: linear-gradient(135deg, #FFF5D6 0%, #F5D061 25%, #C9A063 50%, #B8860B 80%, #FFE5A3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.9));
}

.hero-subtitle {
  font-size: 1.05rem;
  color: #FFFFFF;
  max-width: 800px;
  margin: 0 auto 30px;
  font-weight: 500;
  line-height: 1.7;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.9);
}

.interactive-3d-hint {
  margin-top: 24px;
  font-size: 0.85rem;
  color: #F5D061;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.9);
}

/* Sections */
.section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.section-white {
  background-color: var(--color-pure-white);
}

.section-light {
  background-color: var(--color-bg-light);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 44px;
}

.section-subtitle {
  color: var(--color-gold-primary);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-header-blue);
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1.02rem;
}

/* AI Virtual Lab */
.ai-lab-3col-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-gold-primary);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 10px 35px rgba(0,0,0,0.05);
}

.ai-lab-grid-3col {
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.ai-col-inputs {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ai-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #16A34A;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  width: fit-content;
}

.ai-pulse-dot {
  width: 8px;
  height: 8px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 8px #22C55E;
}

.ai-prompt-select, .ai-prompt-textarea {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  color: var(--color-text-dark);
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  outline: none;
  width: 100%;
}

.ai-col-reactor {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--color-header-blue);
  background: #000;
  min-height: 320px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.beaker-video-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1.0;
  filter: contrast(1.05);
}

.beaker-hover-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.reactor-live-indicator {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(29, 45, 68, 0.85);
  border: 1px solid var(--color-gold-primary);
  color: #4ADE80;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-family: monospace;
  font-weight: 700;
  z-index: 3;
}

.ai-col-results {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.reactor-results-card {
  background: var(--color-amber-bg);
  border: 1px solid var(--color-gold-primary);
  border-left: 4px solid var(--color-gold-dark);
  padding: 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--color-text-dark);
  line-height: 1.5;
}

.lab-data-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.data-gauge-row {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.gauge-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 700;
}

.gauge-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-header-blue);
}

/* ABOUT HSIAO-CHING */
.about-hero-block {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
  margin-bottom: 50px;
}

.about-family-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: center 20%;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  border: 1px solid var(--color-border);
}

.about-text-content {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-gold-primary);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

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

.value-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.value-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold-primary);
  box-shadow: var(--shadow-hover);
}

.value-card-media {
  height: 200px;
  overflow: hidden;
}

.value-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  transition: transform 0.5s ease;
}

.value-card:hover .value-card-img {
  transform: scale(1.06);
}

.value-card-body {
  padding: 20px;
  flex: 1;
}

.value-num {
  font-size: 0.78rem;
  color: var(--color-gold-primary);
  font-weight: 800;
}

.value-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-header-blue);
  margin: 4px 0 8px;
}

.value-desc {
  font-size: 0.9rem;
  color: var(--color-text-body);
  line-height: 1.6;
}

/* Flavor Gallery */
.flavor-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.gallery-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.gallery-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold-primary);
  box-shadow: var(--shadow-hover);
}

.gallery-img-wrapper {
  height: 185px;
  overflow: hidden;
  position: relative;
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-card:hover .gallery-img {
  transform: scale(1.06);
}

.gallery-card-body {
  padding: 18px 16px;
  background: #FFFFFF;
  text-align: center;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.gallery-title {
  color: var(--color-header-blue);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.4;
}

.gallery-hover-link {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-gold-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  opacity: 0.85;
  transition: var(--transition-smooth);
}

.gallery-card:hover .gallery-hover-link {
  opacity: 1;
  color: var(--color-gold-dark);
  transform: translateX(4px);
}

/* Product Database Table */
.catalog-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.category-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tab-btn {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  color: var(--color-text-body);
  padding: 8px 18px;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 700;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.tab-btn:hover {
  background: var(--color-amber-bg);
  border-color: var(--color-gold-primary);
  color: var(--color-gold-dark);
  transform: translateY(-1px);
}

.tab-btn.active {
  background: var(--color-header-blue) !important;
  color: #FFFFFF !important;
  border-color: var(--color-header-blue) !important;
  box-shadow: 0 4px 15px rgba(29, 45, 68, 0.25);
}

.search-box {
  position: relative;
  width: 300px;
}

.search-input {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  color: var(--color-text-dark);
  padding: 9px 14px 9px 40px;
  border-radius: 25px;
  font-size: 0.88rem;
  outline: none;
}

.product-table-wrapper {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  overflow-x: auto; /* 手機版橫向滑動支援 */
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.product-table {
  width: 100%;
  min-width: 680px; /* 手機版防表格擠壓最少寬度 */
  border-collapse: collapse;
  text-align: left;
}

.product-table thead {
  background-color: var(--color-header-blue) !important;
  border-bottom: 3px solid var(--color-gold-primary);
}

.product-table th {
  padding: 16px 20px;
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 800;
}

.product-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: all 0.25s ease;
}

.product-table tbody tr:hover {
  background-color: var(--color-amber-bg) !important;
  cursor: pointer;
}

.product-name-cell {
  font-weight: 700;
  color: var(--color-text-dark);
  transition: transform 0.3s ease, color 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}

.product-logo-mini {
  width: 22px;
  height: 22px;
  opacity: 0.4;
  transition: all 0.3s ease;
  object-fit: contain;
}

.product-eng-cell {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-family: monospace;
}

.tag-badge {
  background-color: var(--color-amber-bg);
  color: var(--color-amber-text);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  display: inline-block;
  border: 1px solid rgba(184, 134, 11, 0.3);
}

.tag-feature {
  background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-dark));
  color: #FFFFFF;
  padding: 3px 10px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 800;
  display: inline-block;
}

/* Timeline */
.timeline-detail-box {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-gold-primary);
  border-radius: var(--radius-md);
  padding: 26px;
  margin: 36px auto 0;
  text-align: center;
  max-width: 720px;
  box-shadow: var(--shadow-card);
}

/* Floating Actions */
.floating-actions-container {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.floating-sample-btn {
  background: linear-gradient(135deg, var(--color-gold-primary), var(--color-gold-dark));
  color: #FFFFFF;
  padding: 12px 22px;
  border-radius: 30px;
  font-weight: 800;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 25px rgba(201, 160, 99, 0.5);
  border: 2px solid #FFFFFF;
  transition: var(--transition-smooth);
  animation: pulseFloating 2.5s infinite;
}

@keyframes pulseFloating {
  0%, 100% { transform: scale(1); box-shadow: 0 8px 25px rgba(201, 160, 99, 0.5); }
  50% { transform: scale(1.05); box-shadow: 0 14px 35px rgba(201, 160, 99, 0.7); }
}

.floating-sample-btn:hover {
  transform: scale(1.08) translateY(-2px);
  background: linear-gradient(135deg, #F5D061, var(--color-gold-primary));
}

.floating-ai-btn {
  background: var(--color-header-blue);
  color: var(--color-gold-light);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 8px 22px rgba(29, 45, 68, 0.4);
  border: 2px solid var(--color-gold-primary);
  transition: var(--transition-smooth);
}

.chat-modal {
  position: fixed;
  bottom: 100px;
  right: 20px;
  width: 360px;
  max-width: 90vw;
  height: 480px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  z-index: 1000;
  display: none;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

/* Footer (#1D2D44) */
.footer {
  background: var(--color-header-blue);
  color: #CBD5E1;
  padding: 50px 0 25px;
  text-align: center;
  border-top: 3px solid var(--color-gold-primary);
}

/* ==========================================================================
   📱 手機與平板全響應式適配 (MOBILE & TABLET RESPONSIVE STYLES)
   ========================================================================== */
@media (max-width: 1100px) {
  .ai-lab-grid-3col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 992px) {
  .nav-links {
    display: none; /* 手機隱藏直列選單，改用彈出抽屜 */
  }
  .mobile-toggle-btn {
    display: block;
  }
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flavor-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-hero-block {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 55px 0;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .hero-section {
    min-height: 80vh;
    padding-top: 80px;
  }
  .hero-title {
    font-size: 1.65rem;
    line-height: 1.35;
  }
  .hero-subtitle {
    font-size: 0.95rem;
    line-height: 1.6;
  }
  .slogan-pill {
    font-size: 0.75rem;
    padding: 5px 12px;
  }
  .ai-lab-3col-card {
    padding: 20px;
  }
  .ai-col-reactor {
    min-height: 240px;
  }
  .about-family-img {
    height: 250px;
  }
  .about-text-content {
    padding: 20px;
  }
  .values-grid {
    grid-template-columns: 1fr;
  }
  .flavor-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .gallery-img-wrapper {
    height: 140px;
  }
  .gallery-title {
    font-size: 0.85rem;
  }
  .search-box {
    width: 100%;
  }
  .catalog-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .category-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }
  .tab-btn {
    white-space: nowrap;
    font-size: 0.8rem;
    padding: 6px 14px;
  }
  .floating-sample-btn {
    padding: 10px 18px;
    font-size: 0.85rem;
  }
  .brand-logo .logo-title {
    font-size: 1.05rem;
  }
}

@media (max-width: 480px) {
  .flavor-gallery-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 1.45rem;
  }
  .nav-container {
    height: 70px;
  }
  .logo-img-transparent {
    height: 36px;
  }
}