:root {
  --color-primary: #1F3D2B;
  --color-secondary: #A8C3A0;
  --color-background: #F7F6F2;
  --color-accent: #C6A86B;
  --color-text: #1A1A1A;
  --color-text-light: #666;
  --color-white: #ffffff;
  --font-zh: 'Noto Sans TC', sans-serif;
  --font-en: 'Inter', 'Helvetica Now', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-en), var(--font-zh);
  color: var(--color-text);
  background: var(--color-background);
  overflow-x: hidden;
  padding-top: 76px;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }

.btn { border-radius: 50px; padding: 12px 32px; font-weight: 500; transition: all .3s ease; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); }
.btn-primary:hover { background: #162d20; border-color: #162d20; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(31,61,43,.3); }
.btn-outline-light:hover { background: var(--color-white); color: var(--color-primary); }

section.section { padding: 100px 0; }
.container { max-width: 1200px; }

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
  letter-spacing: -.02em;
}
.section-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.bg-light { background: #f0efe8 !important; }
.bg-dark { background: var(--color-primary) !important; }

/* Navbar */
.navbar {
  background: rgba(247,246,242,.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  padding: 12px 0;
}
.navbar .brand-text {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-left: 10px;
}
.navbar .nav-link {
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 16px !important;
  border-radius: 8px;
  transition: all .2s;
}
.navbar .nav-link:hover { background: rgba(31,61,43,.08); color: var(--color-primary); }
.lang-switch .nav-link { font-weight: 700; letter-spacing: .05em; }
.dropdown-menu { border: none; box-shadow: 0 10px 40px rgba(0,0,0,.1); border-radius: var(--radius); }
.dropdown-item { padding: 8px 20px; font-size: .9rem; }
.dropdown-item:hover { background: rgba(31,61,43,.08); color: var(--color-primary); }
.navbar-toggler { border: none; padding: 8px; }
.navbar-toggler:focus { box-shadow: none; }

/* Hero */
.hero-section {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, #1F3D2B 0%, #2a5240 50%, #3a6a52 100%);
  color: var(--color-white);
  overflow: hidden;
}
.hero-section .hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  opacity: .15;
}
.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}
.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -.03em;
}
.hero-subtitle {
  font-size: 1.3rem;
  line-height: 1.6;
  opacity: .9;
  margin-bottom: 2rem;
  max-width: 640px;
}
.hero-cta { margin-top: 2rem; }
.hero-cta .btn { padding: 14px 36px; font-weight: 600; }
.hero-cta .btn-outline-light { border-width: 2px; }
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}
.scroll-indicator span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,.5);
  border-radius: 12px;
  position: relative;
}
.scroll-indicator span::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-white);
  border-radius: 2px;
  animation: scrollDot 2s infinite;
}
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-10px); } }
@keyframes scrollDot { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* Pain Points */
.pain-card {
  background: var(--color-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all .4s cubic-bezier(.25,.46,.45,.94);
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  border: 1px solid rgba(31,61,43,.04);
}
.pain-card:hover { transform: translateY(-8px); box-shadow: 0 20px 60px rgba(31,61,43,.12); border-color: rgba(168,195,160,.3); }
.pain-icon {
  width: 64px; height: 64px;
  background: var(--color-secondary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--color-primary);
}
.pain-card h4 { font-size: 1.1rem; font-weight: 600; }

/* Solution Cycle */
.solution-cycle {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.cycle-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.cycle-icon {
  width: 100px; height: 100px;
  background: var(--color-white);
  border: 3px solid var(--color-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-primary);
  transition: all .3s;
}
.cycle-item:hover .cycle-icon { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); transform: scale(1.05); }
.cycle-item span { font-weight: 600; font-size: .95rem; }
.cycle-arrow { font-size: 1.5rem; color: var(--color-primary); }

/* Core Value */
.value-card {
  background: var(--color-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  height: 100%;
  transition: all .4s cubic-bezier(.25,.46,.45,.94);
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  border: 1px solid rgba(31,61,43,.04);
}
.value-card:hover { transform: translateY(-8px); box-shadow: 0 20px 60px rgba(31,61,43,.12); border-color: var(--color-accent); }
.value-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-secondary);
  line-height: 1;
  margin-bottom: 1rem;
  transition: color .3s;
}
.value-card:hover .value-number { color: var(--color-primary); }
.value-card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 1rem; }
.value-card p { color: var(--color-text-light); line-height: 1.7; }

/* Flow Timeline */
.flow-timeline { max-width: 700px; margin: 0 auto; position: relative; }
.flow-timeline::before {
  content: '';
  position: absolute;
  left: 29px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-secondary);
}
.flow-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 20px 0;
  position: relative;
}
.flow-step {
  width: 60px; height: 60px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  flex-shrink: 0;
  z-index: 1;
}
.flow-content {
  background: var(--color-white);
  padding: 20px 24px;
  border-radius: var(--radius);
  flex: 1;
  box-shadow: 0 4px 15px rgba(0,0,0,.04);
}
.flow-content h4 { font-size: 1.1rem; font-weight: 600; margin: 0; }

/* Products */
.product-card {
  background: var(--color-white);
  padding: 30px 20px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all .3s;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 8px 30px rgba(0,0,0,.1); }
.product-icon {
  width: 60px; height: 60px;
  background: var(--color-secondary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.3rem;
  color: var(--color-primary);
}
.product-card h4 { font-size: 1rem; font-weight: 600; }

/* Trust */
.trust-item { padding: 40px 20px; }
.trust-icon { font-size: 3rem; margin-bottom: 1rem; color: var(--color-accent); }
.trust-item h4 { font-size: 1.2rem; font-weight: 600; }

/* Page Hero */
.page-hero {
  background: linear-gradient(135deg, #1F3D2B, #2a5240);
  color: var(--color-white);
  padding: 120px 0 80px;
  text-align: center;
}
.page-hero h1 { font-size: 3rem; font-weight: 800; letter-spacing: -.02em; }
.page-hero .lead { font-size: 1.2rem; opacity: .9; max-width: 600px; margin: 1rem auto 0; }

/* Team */
.team-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
}
.team-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.team-photo { width: 120px; height: 120px; border-radius: 50%; overflow: hidden; margin: 0 auto 16px; }
.team-photo img { width: 100%; height: 100%; object-fit: cover; }
.team-photo-placeholder { width: 100%; height: 100%; background: var(--color-secondary); display: flex; align-items: center; justify-content: center; color: var(--color-primary); }
.team-title { font-weight: 600; color: var(--color-primary); margin-bottom: 8px; }
.team-bio { font-size: .9rem; color: var(--color-text-light); }

/* Subpage card */
.subpage-card {
  display: block;
  background: var(--color-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all .3s;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
}
.subpage-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.subpage-card i { font-size: 2.5rem; color: var(--color-primary); margin-bottom: 1rem; }
.subpage-card h3 { font-size: 1.2rem; font-weight: 600; }

/* Timeline page */
.timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 18px; top: 0; bottom: 0; width: 2px; background: var(--color-secondary); }
.timeline-item { position: relative; padding: 20px 0; }
.timeline-year {
  position: absolute;
  left: -40px;
  width: 36px; height: 36px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  top: 20px;
  z-index: 1;
}
.timeline-content {
  background: var(--color-white);
  padding: 20px 24px;
  border-radius: var(--radius);
  box-shadow: 0 4px 15px rgba(0,0,0,.04);
}
.timeline-content p { margin: 0; }

/* Platform Card */
.platform-card {
  background: var(--color-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
  position: relative;
}
.platform-card:hover { transform: translateY(-8px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.platform-number {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 3rem;
  font-weight: 800;
  color: rgba(31,61,43,.06);
  line-height: 1;
}
.platform-card h3 { font-weight: 700; margin-bottom: 1rem; }
.platform-card ul li { padding: 4px 0; }

/* Feature Card */
.feature-card {
  background: var(--color-white);
  padding: 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.feature-card h3 { font-size: 1.15rem; font-weight: 600; }

/* Solution Card */
.solution-card {
  display: block;
  background: var(--color-white);
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
}
.solution-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.solution-card h3 { font-weight: 600; margin-bottom: .5rem; }
.solution-card p { color: var(--color-text-light); }

/* Ingredient Card */
.ingredient-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
}
.ingredient-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.ingredient-img { width: 100%; height: 200px; object-fit: cover; border-radius: var(--radius); margin-bottom: 16px; }
.ingredient-card h4 { font-weight: 600; margin-bottom: 8px; }

/* Partner Model Card */
.partner-model-card {
  background: var(--color-white);
  padding: 30px 20px;
  border-radius: var(--radius-lg);
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
}
.partner-model-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.partner-model-card h4 { font-weight: 600; font-size: 1rem; }

/* Showcase Card */
.showcase-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
  padding: 24px;
}
.showcase-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.showcase-img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius); margin-bottom: 16px; }
.showcase-card h4 { font-weight: 600; margin-bottom: 8px; }

/* Vision Card */
.vision-card {
  background: var(--color-white);
  padding: 50px 30px;
  border-radius: var(--radius-lg);
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  transition: all .3s;
}
.vision-card:hover { transform: translateY(-8px); box-shadow: 0 12px 40px rgba(0,0,0,.1); }
.vision-icon { font-size: 3rem; color: var(--color-primary); margin-bottom: 1rem; }
.vision-card h3 { font-weight: 700; margin-bottom: 1rem; }

/* Concept Visual */
.concept-visual { text-align: center; padding: 3rem; }

/* Content Area */
.content-area { line-height: 1.8; font-size: 1.05rem; }
.content-area p { margin-bottom: 1rem; }

/* Flash Messages */
.flash-message {
  position: fixed;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(0,0,0,.15);
  max-width: 600px;
  width: 90%;
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,.8);
  padding: 60px 0 30px;
}
.footer h5, .footer h6 { color: var(--color-white); font-weight: 600; margin-bottom: 1rem; }
.footer a { color: rgba(255,255,255,.7); transition: all .2s; }
.footer a:hover { color: var(--color-secondary); }
.footer ul li { margin-bottom: .5rem; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); }

/* Mobile */
@media (max-width: 768px) {
  body { padding-top: 60px; }
  .hero-section { min-height: 80vh; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-cta .btn { display: block; width: 100%; margin: 0 0 12px 0 !important; }
  .section-title { font-size: 1.6rem; }
  .page-hero { padding: 100px 0 60px; }
  .page-hero h1 { font-size: 1.8rem; }
  .section { padding: 50px 0; }
  .solution-cycle { flex-direction: column; }
  .cycle-arrow { transform: rotate(90deg); }
  .cycle-icon { width: 70px; height: 70px; font-size: 1.4rem; }
  .flow-timeline::before { left: 18px; }
  .flow-step { width: 36px; height: 36px; font-size: .9rem; }
  .flow-item { gap: 16px; padding: 12px 0; }
  .flow-content { padding: 14px 18px; }
  .navbar .brand-text { font-size: .85rem; }
  .pain-card { padding: 28px 20px; }
  .value-card { padding: 28px 20px; }
  .product-card { padding: 20px 16px; }
  .trust-item { padding: 24px 16px; }
  .footer { padding: 40px 0 20px; }
  .flash-message { top: 70px; font-size: .9rem; }
}
@media (max-width: 576px) {
  .hero-title { font-size: 1.7rem; }
  .section-title { font-size: 1.4rem; }
  .hero-subtitle { font-size: .95rem; }
}