/* ==========================================================================
   德宜智有限公司 DE ICHEN INTERNATIONAL CORP.
   Official Corporate Website Stylesheet (Mobile-Optimized & Cloudflare Ready)
   ========================================================================== */

:root {
  /* Brand Core Palette */
  --brand-black: #121518;
  --brand-charcoal: #1e2328;
  --brand-red: #c4161c;
  --brand-red-light: #fbe9ea;
  --brand-gold: #f2b229;
  --brand-gold-dark: #c88a0c;
  --brand-gold-light: #fef7e6;

  /* Sanct Bernhard Botanical Palette */
  --sb-green: #126634;
  --sb-green-dark: #0b4723;
  --sb-green-soft: #eaf4ee;
  --sb-sage: #7c9a6d;

  /* Smart Medical Care Palette */
  --care-navy: #1b3a5c;
  --care-blue: #2563eb;
  --care-blue-soft: #eff6ff;

  /* Social / Messaging Palette */
  --line-green: #06c755;
  --line-green-dark: #05a847;
  --line-green-soft: #e8f9ed;

  /* Neutral & Surface Tokens */
  --bg-primary: #fcfbf8;
  --bg-white: #ffffff;
  --bg-muted: #f4f3ee;
  --text-primary: #171a1c;
  --text-secondary: #4a525a;
  --text-muted: #6e7781;
  --border-subtle: rgba(18, 21, 24, 0.09);
  --border-strong: rgba(18, 21, 24, 0.16);

  /* Elevation & Layout */
  --shadow-sm: 0 2px 8px rgba(18, 21, 24, 0.05);
  --shadow-md: 0 10px 28px rgba(18, 21, 24, 0.08);
  --shadow-lg: 0 20px 48px rgba(18, 21, 24, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --container-max: 1220px;
  --header-height: 76px;
  --transition: 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  font-size: 16px;
}

body {
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  word-break: break-word;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Top Brand Accent Ribbon (German Colors)
   ========================================================================== */
.brand-ribbon {
  height: 4px;
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--brand-black) 0%,
    var(--brand-black) 33.33%,
    var(--brand-red) 33.33%,
    var(--brand-red) 66.66%,
    var(--brand-gold) 66.66%,
    var(--brand-gold) 100%
  );
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1001;
}

/* ==========================================================================
   Navigation Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 4px;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(252, 251, 248, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo-mark {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  min-width: 0;
}

.brand-name-zh {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--brand-black);
  white-space: nowrap;
}

.brand-name-en {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--sb-green);
  transition: var(--transition);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Base Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
  user-select: none;
  min-height: 44px;
}

.btn-primary {
  background: var(--sb-green);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(18, 102, 52, 0.2);
}

.btn-primary:hover {
  background: var(--sb-green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(18, 102, 52, 0.28);
}

.btn-line {
  background: var(--line-green);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(6, 199, 85, 0.2);
}

.btn-line:hover {
  background: var(--line-green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 199, 85, 0.28);
}

.btn-dark {
  background: var(--brand-black);
  color: #ffffff;
}

.btn-dark:hover {
  background: var(--brand-charcoal);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--brand-black);
  border-color: var(--border-strong);
}

.btn-outline:hover {
  background: var(--brand-black);
  color: #ffffff;
  border-color: var(--brand-black);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
  min-height: 38px;
}

.btn-touch {
  min-height: 48px;
  padding: 12px 24px;
  font-size: 0.96rem;
  width: 100%;
}

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

/* Hamburger Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--brand-black);
  padding: 0;
}

.hamburger-box {
  width: 20px;
  height: 14px;
  display: inline-block;
  position: relative;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
  width: 20px;
  height: 2px;
  background-color: var(--brand-black);
  border-radius: 2px;
  position: absolute;
  transition: transform 0.22s ease, top 0.22s ease;
}

.hamburger-inner {
  top: 6px;
}

.hamburger-inner::before {
  content: "";
  top: -6px;
}

.hamburger-inner::after {
  content: "";
  top: 6px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-inner {
  background-color: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-inner::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-inner::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 90% 12%, rgba(242, 178, 41, 0.12), transparent 42%),
    radial-gradient(circle at 10% 82%, rgba(18, 102, 52, 0.08), transparent 45%),
    var(--bg-primary);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 52px;
  align-items: center;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--bg-white);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 22px;
  max-width: 100%;
}

.tricolor-dot {
  display: inline-flex;
  gap: 4px;
  flex-shrink: 0;
}

.tricolor-dot span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.tricolor-dot span:nth-child(1) { background: var(--brand-black); }
.tricolor-dot span:nth-child(2) { background: var(--brand-red); }
.tricolor-dot span:nth-child(3) { background: var(--brand-gold); }

.hero-title {
  font-size: clamp(2rem, 3.8vw, 3.15rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--brand-black);
  margin-bottom: 20px;
}

.hero-title .highlight-green {
  color: var(--sb-green);
}

.hero-title .highlight-care {
  color: var(--care-navy);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 38px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 26px;
  border-top: 1px solid var(--border-subtle);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-kicker {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sb-green);
}

.metric-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand-black);
}

.metric-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Hero Visual Showcase */
.hero-visual {
  position: relative;
}

.hero-banner-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: var(--brand-black);
}

.hero-banner-img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-floating-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}

.mini-feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.mini-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.15rem;
}

.mini-icon.green {
  background: var(--sb-green-soft);
  color: var(--sb-green);
}

.mini-icon.blue {
  background: var(--care-blue-soft);
  color: var(--care-navy);
}

.mini-feature-card h3 {
  font-size: 0.94rem;
  font-weight: 700;
  margin-bottom: 3px;
  color: var(--brand-black);
}

.mini-feature-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Section Shared Typography & Layout
   ========================================================================== */
.section {
  padding: 88px 0;
}

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

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

.section-header {
  max-width: 720px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.tag-green {
  background: var(--sb-green-soft);
  color: var(--sb-green);
}

.tag-gold {
  background: var(--brand-gold-light);
  color: var(--brand-gold-dark);
}

.tag-navy {
  background: var(--care-blue-soft);
  color: var(--care-navy);
}

.section-title {
  font-size: clamp(1.65rem, 2.8vw, 2.3rem);
  font-weight: 800;
  color: var(--brand-black);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   About Section (#about)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 52px;
  align-items: center;
}

.about-brand-card {
  background: var(--bg-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 38px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.about-brand-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--brand-black) 33%, var(--brand-red) 33%, var(--brand-red) 66%, var(--brand-gold) 66%);
}

.about-logo-img {
  max-width: 240px;
  margin: 0 auto 24px;
}

.company-meta-list {
  text-align: left;
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
  display: grid;
  gap: 12px;
}

.company-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.9rem;
}

.company-meta-label {
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.company-meta-value {
  color: var(--brand-black);
  font-weight: 600;
  text-align: right;
  word-break: break-all;
}

.company-meta-value a:hover {
  color: var(--sb-green);
  text-decoration: underline;
}

.about-content h3 {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--brand-black);
  line-height: 1.35;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1rem;
}

.core-business-checklist {
  margin-top: 24px;
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  border: 1px solid var(--border-subtle);
}

.core-business-checklist h4 {
  font-size: 0.96rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--brand-black);
  display: flex;
  align-items: center;
  gap: 8px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-primary);
}

.check-badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--sb-green);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================================
   Three Business Pillars (#pillars)
   ========================================================================== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.pillar-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pillar-number {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pillar-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pillar-card.pillar-health .pillar-icon-box {
  background: var(--sb-green-soft);
  color: var(--sb-green);
}

.pillar-card.pillar-care .pillar-icon-box {
  background: var(--care-blue-soft);
  color: var(--care-navy);
}

.pillar-card.pillar-channel .pillar-icon-box {
  background: var(--brand-gold-light);
  color: var(--brand-gold-dark);
}

.pillar-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--brand-black);
}

.pillar-card p {
  font-size: 0.94rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.pillar-points {
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  display: grid;
  gap: 8px;
}

.pillar-points li {
  font-size: 0.88rem;
  color: var(--text-primary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.pillar-points li::before {
  content: "•";
  color: var(--sb-green);
  font-weight: 900;
}

/* ==========================================================================
   Sanct Bernhard Brand & Product Showcase (#sanct-bernhard)
   ========================================================================== */
.sb-brand-banner {
  background: linear-gradient(135deg, #0d3b20 0%, #145930 60%, #1d241f 100%);
  border-radius: var(--radius-xl);
  padding: 44px;
  color: #ffffff;
  margin-bottom: 48px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
  box-shadow: var(--shadow-md);
}

.sb-wordmarks {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  max-width: 100%;
}

.sb-wordmark-en {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.sb-wordmark-divider {
  width: 1px;
  height: 24px;
  background: rgba(0, 0, 0, 0.15);
}

.sb-wordmark-zh {
  height: 30px;
  width: auto;
  object-fit: contain;
}

.sb-brand-banner h3 {
  font-size: clamp(1.5rem, 2.4vw, 2.05rem);
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.3;
}

.sb-brand-banner p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.96rem;
  margin-bottom: 20px;
}

.sb-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sb-badge {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.sb-banner-photo {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Product Showcase Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-card-top {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 22px;
  padding: 28px;
  background: linear-gradient(180deg, var(--sb-green-soft) 0%, #ffffff 100%);
  align-items: center;
}

.product-bottle-wrap {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 250px;
}

.product-bottle-img {
  max-height: 215px;
  width: auto;
  object-fit: contain;
}

.product-meta-kicker {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--sb-green);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.product-title-zh {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--brand-black);
  margin-bottom: 3px;
}

.product-title-de {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 14px;
  line-height: 1.35;
}

.product-highlights {
  display: grid;
  gap: 7px;
}

.product-highlights li {
  font-size: 0.88rem;
  color: var(--text-primary);
  display: flex;
  align-items: flex-start;
  gap: 7px;
  line-height: 1.45;
}

.product-highlights li span.dot {
  color: var(--sb-green);
  font-weight: 800;
}

.product-card-body {
  padding: 0 28px 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.product-desc {
  font-size: 0.93rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.ingredient-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
}

.ingredient-tag {
  background: var(--bg-muted);
  border: 1px solid var(--border-subtle);
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.product-note-box {
  background: var(--brand-gold-light);
  border-left: 3px solid var(--brand-gold-dark);
  padding: 12px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.product-details-accordion {
  margin-bottom: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
}

.product-details-accordion summary {
  padding: 10px 14px;
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-primary);
  user-select: none;
}

.product-details-accordion p {
  padding: 0 14px 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.product-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ==========================================================================
   Smart Assistive & Medical Care (#smart-care)
   ========================================================================== */
.smart-care-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.care-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.care-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(27, 58, 92, 0.25);
}

.care-tag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.care-status-pill {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--care-blue-soft);
  color: var(--care-navy);
}

.care-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--brand-black);
  margin-bottom: 10px;
}

.care-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.care-benefits {
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
  display: grid;
  gap: 8px;
}

.care-benefits li {
  font-size: 0.86rem;
  color: var(--text-primary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.care-benefits li::before {
  content: "✓";
  color: var(--care-blue);
  font-weight: 800;
}

.care-card-action {
  margin-top: 20px;
}

/* ==========================================================================
   Channel Integration & Partnership (#partnership)
   ========================================================================== */
.partnership-banner {
  background: var(--brand-black);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 50px 44px;
}

.partnership-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 44px;
  align-items: center;
}

.partnership-banner h2 {
  font-size: clamp(1.65rem, 2.6vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.3;
}

.partnership-banner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.98rem;
  margin-bottom: 24px;
}

.partnership-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.partner-cards {
  display: grid;
  gap: 14px;
}

.partner-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  transition: var(--transition);
}

.partner-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--brand-gold);
}

.partner-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--brand-gold);
  margin-bottom: 5px;
}

.partner-item p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 0;
}

/* ==========================================================================
   Direct Contact Channels Grid (#contact — 行動優先直接聯絡專區)
   ========================================================================== */
.contact-channels-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.contact-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.contact-card.primary-channel::before {
  background: var(--sb-green);
}

.contact-card.line-channel::before {
  background: var(--line-green);
}

.contact-card.email-channel::before {
  background: var(--brand-charcoal);
}

.contact-card.address-channel::before {
  background: var(--brand-gold);
}

.contact-card.address-channel {
  justify-content: flex-start;
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--bg-muted);
}

.contact-card.primary-channel .contact-card-icon {
  background: var(--sb-green-soft);
  color: var(--sb-green);
}

.contact-card.line-channel .contact-card-icon {
  background: var(--line-green-soft);
  color: var(--line-green-dark);
}

.contact-card.email-channel .contact-card-icon {
  background: var(--care-blue-soft);
  color: var(--care-navy);
}

.contact-card.address-channel .contact-card-icon {
  background: var(--brand-gold-light);
  color: var(--brand-gold-dark);
}

.contact-card-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-card-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-card-main-link {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: var(--brand-black);
  line-height: 1.25;
}

.contact-card-main-link:hover {
  color: var(--sb-green);
}

.contact-card-main-link.email-text {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  word-break: break-all;
}

.contact-card-main-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--brand-black);
}

.contact-card-main-val.address-text {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
}

.contact-card-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.contact-card-actions-group {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 10px;
}

/* Toast Bubble for Copy */
.toast-bubble {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--brand-black);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  pointer-events: none;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
}

.toast-bubble.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Lightbox Modal for Original Product Spec Sheets
   ========================================================================== */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background: rgba(18, 21, 24, 0.84);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-dialog {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.lightbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
  background: #ffffff;
  flex-shrink: 0;
}

.lightbox-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--brand-black);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 12px;
}

.lightbox-close {
  background: var(--bg-muted);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 1;
}

.lightbox-body {
  padding: 16px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  justify-content: center;
  background: var(--bg-primary);
}

.lightbox-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--brand-black);
  color: rgba(255, 255, 255, 0.78);
  padding: 56px 0 32px;
  border-top: 4px solid var(--brand-gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.9fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.footer-logo-mark {
  width: 42px;
  height: 42px;
  background: #ffffff;
  padding: 4px;
  border-radius: 10px;
}

.footer-brand-name {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
}

.footer-brand-en {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.1em;
}

.footer-desc {
  font-size: 0.9rem;
  max-width: 400px;
  line-height: 1.6;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.94rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.footer-links {
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--brand-gold);
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ==========================================================================
   Mobile-First Responsive Adjustments
   ========================================================================== */

/* Tablet & Smaller Laptops */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .sb-brand-banner,
  .partnership-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .pillars-grid,
  .smart-care-grid {
    grid-template-columns: 1fr;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }
}

/* Mobile Screens (<= 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  .container {
    padding: 0 18px;
  }

  .section {
    padding: 64px 0;
  }

  .section-header {
    margin-bottom: 36px;
    text-align: left;
  }

  .section-title {
    font-size: 1.65rem;
  }

  .section-subtitle {
    font-size: 0.94rem;
  }

  /* Header & Navigation on Mobile */
  .brand-logo-mark {
    width: 38px;
    height: 38px;
  }

  .brand-name-zh {
    font-size: 1.05rem;
  }

  .brand-name-en {
    font-size: 0.65rem;
  }

  .header-actions .header-cta-btn {
    display: none;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: calc(var(--header-height) + 4px);
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 24px 20px 32px;
    gap: 16px;
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-lg);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    max-height: calc(100vh - var(--header-height) - 4px);
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: 1.05rem;
    font-weight: 600;
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav-link::after {
    display: none;
  }

  /* Hero Section on Mobile */
  .hero-section {
    padding-top: calc(var(--header-height) + 24px);
    padding-bottom: 56px;
  }

  .eyebrow-badge {
    font-size: 0.76rem;
    padding: 5px 12px;
    margin-bottom: 16px;
  }

  .hero-title {
    font-size: 1.85rem;
    line-height: 1.3;
    margin-bottom: 16px;
  }

  .hero-lead {
    font-size: 0.96rem;
    margin-bottom: 24px;
  }

  .hero-ctas {
    flex-direction: column;
    gap: 10px;
    margin-bottom: 30px;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 20px;
  }

  .hero-floating-cards {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* About Section on Mobile */
  .about-brand-card {
    padding: 26px 20px;
  }

  .about-logo-img {
    max-width: 190px;
    margin-bottom: 18px;
  }

  .company-meta-row {
    flex-direction: column;
    gap: 2px;
    border-bottom: 1px dashed var(--border-subtle);
    padding-bottom: 8px;
  }

  .company-meta-value {
    text-align: left;
    font-size: 0.95rem;
  }

  .core-business-checklist {
    padding: 18px;
  }

  /* Sanct Bernhard Section on Mobile */
  .sb-brand-banner {
    padding: 28px 20px;
    border-radius: var(--radius-lg);
  }

  .sb-wordmarks {
    padding: 8px 14px;
    gap: 10px;
  }

  .sb-wordmark-en {
    height: 22px;
  }

  .sb-wordmark-zh {
    height: 24px;
  }

  .product-card-top {
    grid-template-columns: 1fr;
    padding: 20px;
    gap: 16px;
    text-align: left;
  }

  .product-bottle-wrap {
    height: 220px;
    padding: 12px;
  }

  .product-bottle-img {
    max-height: 190px;
  }

  .product-card-body {
    padding: 0 20px 24px;
  }

  .product-card-actions {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  /* Partnership Section on Mobile */
  .partnership-banner {
    padding: 32px 20px;
    border-radius: var(--radius-lg);
  }

  .partnership-ctas {
    flex-direction: column;
    gap: 10px;
  }

  .partnership-ctas .btn {
    width: 100%;
  }

  /* Contact Channels on Mobile */
  .contact-channels-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .contact-card {
    padding: 24px 20px;
  }

  .contact-card-actions-group {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  /* Footer on Mobile */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-bottom: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 6px;
  }
}

/* Extra Small Phones (<= 380px) */
@media (max-width: 380px) {
  .brand-name-zh {
    font-size: 0.95rem;
  }

  .brand-name-en {
    font-size: 0.6rem;
  }

  .hero-title {
    font-size: 1.65rem;
  }

  .contact-card-main-link {
    font-size: 1.35rem;
  }
}