/* ========== Design System ========== */
:root {
  --blue-primary: #003A94;
  --blue-deep: #002A6B;
  --blue-dark: #001E4D;
  --blue-light: #1E5BBF;
  --gold: #F5C735;
  --gold-light: #FFD955;
  --gold-deep: #D4A820;
  --cream: #F5F1E8;
  --cream-dark: #E8E0D0;
  --wood: #6F542F;
  --text-dark: #2C2C3E;
  --text-body: #4A4A5E;
  --text-light: rgba(255,255,255,0.85);
  --text-muted: rgba(255,255,255,0.75);
  --white: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-serif: 'Songti SC', 'STSong', 'SimSun', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: 80px; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 10000;
  background: var(--gold);
  color: var(--blue-dark);
  padding: 12px 18px;
  border-radius: 0 0 8px 8px;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

section[id], header[id], main[id] { scroll-margin-top: 24px; }

body {
  font-family: var(--font-sans);
  color: var(--text-body);
  background: var(--cream);
  overflow-x: hidden;
  line-height: 1.7;
  margin-left: 148px;
}

/* ========== Utility ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }
.section-blue { background: var(--blue-primary); color: var(--white); }
.section-cream { background: var(--cream); }
.section-dark { background: var(--blue-deep); color: var(--white); }

.section-label {
  display: block;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  text-align: center;
}

.section-subtitle {
  font-size: 1.05rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 48px;
  opacity: 0.85;
  text-align: center;
  text-wrap: balance;
}

.section-cream .section-label { color: var(--blue-primary); }
.section-cream .section-title { color: var(--blue-deep); }
.section-cream .section-subtitle { color: var(--text-body); }

/* 区块内小标题统一居中 */
h3,
h4 {
  text-align: center;
}

/* ========== Navigation — Left Sidebar ========== */
.nav {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 1000;
  width: 148px;
  background: rgba(0, 42, 107, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-right: 1px solid rgba(245, 199, 53, 0.12);
  transition: all 0.3s var(--transition);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.nav.scrolled {
  background: rgba(0, 30, 77, 0.96);
  box-shadow: 2px 0 20px rgba(0,0,0,0.25);
}

.nav-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 12px 32px;
  gap: 8px;
  flex: 1;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(245, 199, 53, 0.15);
  margin-bottom: 8px;
  width: 100%;
}

.nav-logo-icon { height: 40px; width: auto; flex-shrink: 0; }

.nav-logo-text {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.06em;
  text-align: center;
  line-height: 1.3;
}

.nav-logo-text span { color: var(--gold); margin: 0 1px; }

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
  list-style: none;
  width: 100%;
}

.nav-menu a {
  display: block;
  padding: 10px 10px;
  font-size: 0.82rem;
  color: var(--text-light);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.25s;
  white-space: nowrap;
  text-align: center;
  position: relative;
}

.nav-menu a:hover, .nav-menu a.active {
  color: var(--gold);
  background: rgba(245, 199, 53, 0.1);
}

.nav-menu a.active::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--gold);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: 0.3s;
  border-radius: 2px;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--blue-primary) 50%, var(--blue-deep) 100%);
  overflow: hidden;
  text-align: center;
  color: var(--white);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(245,199,53,0.3) 40px, rgba(245,199,53,0.3) 41px),
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(245,199,53,0.3) 40px, rgba(245,199,53,0.3) 41px);
}

.hero-bg-char {
  position: absolute;
  font-family: var(--font-serif);
  font-size: 42vw;
  font-weight: 900;
  color: rgba(245, 199, 53, 0.04);
  line-height: 1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  user-select: none;
  pointer-events: none;
  white-space: nowrap;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 24px 60px;
  max-width: 900px;
}

.hero-logo {
  height: 100px;
  width: auto;
  max-width: 160px;
  margin: 0 auto 28px;
  animation: fadeInDown 1s var(--transition) both;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  animation: fadeInUp 1s 0.2s var(--transition) both;
}

.hero h1 .dot {
  display: inline-block;
  width: 10px; height: 10px;
  background: var(--gold);
  border-radius: 50%;
  margin: 0 8px;
  vertical-align: middle;
  position: relative;
  top: -4px;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-bottom: 24px;
  animation: fadeInUp 1s 0.3s var(--transition) both;
}

.hero-desc {
  font-size: clamp(0.9rem, 1.8vw, 1.05rem);
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
  text-align: center;
  animation: fadeInUp 1s 0.4s var(--transition) both;
}

.hero-quote {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--gold);
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px 16px;
  display: inline-block;
  margin-bottom: 40px;
  animation: fadeInUp 1s 0.5s var(--transition) both;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s 0.6s var(--transition) both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 40px;
  transition: all 0.3s var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
}

.btn-gold {
  background: var(--gold);
  color: var(--blue-dark);
}

.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 199, 53, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-blue {
  background: var(--blue-primary);
  color: var(--white);
}

.btn-blue:hover {
  background: var(--blue-light);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  animation: bounce 2s infinite;
  z-index: 2;
}

.hero-scroll svg { display: block; margin: 4px auto 0; }

/* ========== Animations ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.8); opacity: 0; }
}

.reveal {
  opacity: 1;
  transform: none;
}

html.js .reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}

html.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ========== Origin Section ========== */
.origin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.origin-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--gold);
  transition: all 0.3s var(--transition);
}

.origin-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.origin-card-icon {
  width: 44px; height: 44px;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 58, 148, 0.08);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.origin-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.origin-card-header h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--blue-deep);
  margin-bottom: 0;
}

.origin-card p { font-size: 0.92rem; line-height: 1.8; }

.origin-card .stat {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}

.origin-card .stat-label {
  font-size: 0.82rem;
  color: var(--text-body);
  margin-bottom: 16px;
}

.origin-quote-block {
  margin-top: 48px;
  padding: 40px;
  background: var(--blue-primary);
  border-radius: var(--radius-md);
  color: var(--white);
  text-align: center;
  position: relative;
}

.origin-quote-block::before {
  content: '“';
  font-family: var(--font-serif);
  font-size: 5rem;
  color: var(--gold);
  opacity: 0.3;
  position: absolute;
  top: 0; left: 20px;
  line-height: 1;
}

.origin-quote-block p {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  line-height: 1.8;
  margin-bottom: 12px;
}

.origin-quote-block cite {
  font-style: normal;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ========== Design Section ========== */
.design-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 64px;
}

.design-intro-text h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--blue-deep);
  margin-bottom: 16px;
}

.design-intro-text p {
  font-size: 0.95rem;
  margin-bottom: 16px;
  line-height: 1.9;
}

.design-flow {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.flow-step {
  background: rgba(0, 58, 148, 0.06);
  border: 1px solid rgba(0, 58, 148, 0.15);
  border-radius: 30px;
  padding: 8px 16px;
  font-size: 0.82rem;
  color: var(--blue-primary);
  font-weight: 500;
}

.flow-plus { color: var(--gold); font-weight: 700; }
.flow-equal { color: var(--blue-deep); font-weight: 700; font-size: 1.1rem; }
.flow-result {
  background: var(--gold);
  color: var(--blue-dark);
  border-radius: 30px;
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 700;
}

.design-intro-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-display {
  background: var(--blue-primary);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  width: 100%;
  max-width: 360px;
  box-shadow: var(--shadow-lg);
}

.logo-display .big-logo {
  height: 120px;
  width: auto;
  max-width: 220px;
  margin: 0 auto 20px;
}

.logo-display .brand-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.logo-display .brand-name .dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  margin: 0 6px;
  vertical-align: middle;
  position: relative;
  top: -3px;
}

.logo-display .brand-en {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.2em;
}

.color-system {
  display: flex;
  gap: 20px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.color-card {
  flex: 1;
  min-width: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.color-swatch {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.color-blue .color-swatch { background: var(--blue-primary); color: var(--white); }
.color-gold .color-swatch { background: var(--gold); color: var(--blue-dark); }

.color-info {
  background: var(--white);
  padding: 16px 20px;
  font-size: 0.78rem;
  text-align: center;
}

.color-info .pantone { font-weight: 700; color: var(--blue-deep); margin-bottom: 6px; }
.color-info .rgb, .color-info .cmyk { color: var(--text-body); line-height: 1.5; }

.design-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.design-feature {
  text-align: center;
  padding: 32px 20px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.design-feature-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 199, 53, 0.1);
  border-radius: 50%;
}

.design-feature h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--blue-deep);
  margin-bottom: 8px;
}

.design-feature p { font-size: 0.85rem; }

/* ========== Details Section (Products) ========== */
.product-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.product-tab {
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: 1.5px solid rgba(255,255,255,0.2);
  background: transparent;
  color: var(--text-light);
  transition: all 0.3s;
  font-family: var(--font-sans);
}

.product-tab.active {
  background: var(--gold);
  color: var(--blue-dark);
  border-color: var(--gold);
}

.product-tab:hover:not(.active) {
  border-color: var(--gold);
  color: var(--gold);
}

.product-panel {
  display: none;
  animation: fadeIn 0.5s both;
}

.product-panel.active { display: block; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.product-panel-header {
  text-align: center;
  margin-bottom: 32px;
}

.product-panel-header h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--gold);
  margin-bottom: 8px;
}

.product-panel-header p {
  font-family: var(--font-serif);
  color: var(--text-light);
  font-size: 1rem;
}

.product-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.product-grid > * {
  min-width: 180px;
  max-width: 240px;
  flex: 0 0 auto;
}

.product-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(245, 199, 53, 0.15);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
  transition: all 0.3s;
}

.product-item:hover {
  background: rgba(245, 199, 53, 0.1);
  border-color: var(--gold);
  transform: translateY(-4px);
}

.product-item .drink-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 6px;
}

.product-item .drink-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.product-series-label {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--gold);
  margin: 24px 0 12px;
  text-align: center;
}

/* AR Demo */
.ar-demo {
  margin-top: 64px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
}

.ar-demo h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 8px;
}

.ar-demo > p {
  color: var(--text-light);
  margin-bottom: 32px;
  font-size: 0.92rem;
}

.ar-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.ar-step {
  position: relative;
  flex: 1 1 260px;
  max-width: 320px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(245, 199, 53, 0.18);
  border-radius: var(--radius-lg);
  padding: 30px 24px 24px;
  text-align: center;
}

.ar-step-num {
  position: absolute;
  top: -17px; left: 50%;
  transform: translateX(-50%);
  width: 34px; height: 34px;
  background: var(--gold);
  color: var(--blue-dark);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 34px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}

.ar-step-media {
  margin: 6px auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.ar-step-media img {
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  display: block;
}

.ar-step h4 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--gold);
  margin-bottom: 8px;
}

.ar-step p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.7;
}

.ar-step-arrow {
  color: var(--gold);
  font-size: 1.8rem;
  font-weight: 700;
  flex: 0 0 auto;
}

.ar-step-cup {
  position: relative;
}

.ar-scan-badge {
  position: absolute;
  bottom: 12px; left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--blue-dark);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.ar-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 20px;
}

@media (max-width: 600px) {
  .ar-step-arrow { transform: rotate(90deg); }
}

/* Store info */
.store-info {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.store-visual {
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  border: 1px solid rgba(245, 199, 53, 0.15);
}

.store-visual h4 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--gold);
  margin-bottom: 12px;
}

.store-visual p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.8;
}

.store-details h4 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: #F5C735;
  margin-bottom: 16px;
}

.store-details ul {
  list-style: none;
}

.store-details li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
  color: var(--gold);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.store-details li::before {
  content: '◆';
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ========== Achievements Section ========== */
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.achievement-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  border-bottom: 4px solid var(--gold);
}

.achievement-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.achievement-card .ach-icon {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 58, 148, 0.08);
  border-radius: 50%;
}

.achievement-card h4 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--blue-deep);
  margin-bottom: 10px;
}

.achievement-card p { font-size: 0.85rem; }

.media-coverage {
  margin-top: 48px;
}

.media-coverage h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--blue-deep);
  margin-bottom: 24px;
  text-align: center;
}

.media-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.media-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 20px;
  border-left: 3px solid var(--blue-primary);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.media-item:hover {
  border-left-color: var(--gold);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.media-item .media-source {
  font-size: 0.78rem;
  color: var(--blue-primary);
  font-weight: 700;
  margin-bottom: 6px;
}

.media-item .media-title {
  font-size: 0.88rem;
  color: var(--text-dark);
  line-height: 1.5;
}

.media-item .media-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--blue-primary);
  text-decoration: none;
}

.media-item .media-link:hover { color: var(--gold-deep); }

/* ========== Feedback Section ========== */
.feedback-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feedback-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.3s;
}

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

.feedback-card::before {
  content: '"';
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: var(--gold);
  opacity: 0.3;
  position: absolute;
  top: 8px; left: 20px;
  line-height: 1;
}

.feedback-card .feedback-text {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-dark);
  line-height: 1.8;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  padding-top: 12px;
}

.feedback-card .feedback-author {
  font-size: 0.82rem;
  color: var(--text-body);
}

.feedback-card .feedback-author strong {
  color: var(--blue-primary);
}

.feedback-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  margin-top: 48px;
  text-align: center;
}

.feedback-stat .stat-number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}

.feedback-stat .stat-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 8px;
}

.store-stats-row .stat-number {
  font-size: 2.4rem;
}
.store-stats-row .stat-desc {
  font-size: 0.8rem;
}

.store-stats {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}
.store-stats-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--gold);
  margin-bottom: 8px;
  text-align: center;
  letter-spacing: 0.04em;
}
.store-stats-intro {
  max-width: 420px;
  margin: 0 auto 28px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.75;
}
.store-stats-row {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 48px;
  max-width: 420px;
  margin: 0 auto;
}

/* ========== Culture News Section ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 8px;
}
.news-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--gold);
  transition: all 0.3s var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--text-body);
  margin-bottom: 12px;
}
.news-tag {
  background: rgba(0, 58, 148, 0.08);
  color: var(--blue-primary);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.news-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--blue-deep);
  margin-bottom: 10px;
}
.news-card p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 16px;
}
.news-more {
  margin-top: auto;
  font-size: 0.85rem;
  color: var(--blue-primary);
  font-weight: 600;
  text-decoration: none;
}
.news-more:hover { color: var(--gold); }

/* ========== Company Section ========== */
.company-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.company-info h3 {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--blue-deep);
  margin-bottom: 8px;
  text-align: center;
}

.company-info .company-en {
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  color: var(--blue-primary);
  margin-bottom: 24px;
}

.company-info p {
  font-size: 0.92rem;
  margin-bottom: 16px;
  line-height: 1.9;
  text-align: center;
}

.company-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.company-value {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: rgba(0, 58, 148, 0.04);
  border-radius: var(--radius-sm);
}

.company-value-icon {
  width: 36px; height: 36px;
  flex-shrink: 0;
  background: var(--blue-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.company-value-text h5 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--blue-deep);
  margin-bottom: 2px;
}

.company-value-text p { font-size: 0.78rem; margin: 0; }

.company-visual {
  position: relative;
}

.company-card {
  background: var(--blue-primary);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  color: var(--white);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.company-card .cc-logo {
  height: 72px;
  width: auto;
  max-width: 140px;
  margin: 0 auto 20px;
}

.company-card h4 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: 6px;
}

.company-card .cc-en {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.company-card .cc-list {
  text-align: left;
  list-style: none;
}

.company-card .cc-list li {
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
}

.company-card .cc-list li:last-child { border: none; }

.company-card .cc-list .cc-label { color: var(--text-muted); }
.company-card .cc-list .cc-value { color: var(--gold); font-weight: 500; }

/* ========== FAQ Section ========== */
.faq-groups {
  display: grid;
  gap: 40px;
}

.faq-group-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--blue-deep);
  margin-bottom: 18px;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid rgba(0, 58, 148, 0.12);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 60px;
  padding: 18px 22px;
  color: var(--blue-deep);
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  flex: 0 0 auto;
  color: var(--gold-deep);
  font-size: 1.4rem;
  line-height: 1;
  transition: transform 0.25s var(--transition);
}

.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { background: rgba(0, 58, 148, 0.04); }

.faq-answer {
  padding: 0 22px 22px;
  color: var(--text-body);
  font-size: 0.92rem;
  line-height: 1.85;
}

.faq-answer strong { color: var(--blue-deep); }

.faq-cta {
  max-width: 920px;
  margin: 40px auto 0;
  padding: 28px;
  border-radius: var(--radius-md);
  background: var(--blue-deep);
  color: var(--white);
  text-align: center;
}

.faq-cta p { color: var(--text-light); margin-bottom: 18px; }

/* ========== Cooperation Section ========== */
.coop-intro {
  text-align: center;
  margin-bottom: 48px;
}

.coop-intro h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: 12px;
}

.coop-intro p {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
  font-size: 0.95rem;
}

.coop-models {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.coop-model {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(245, 199, 53, 0.2);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all 0.3s;
}

.coop-model:hover {
  border-color: var(--gold);
  background: rgba(245, 199, 53, 0.05);
  transform: translateY(-4px);
}

.coop-model .cm-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--gold);
  opacity: 0.4;
  margin-bottom: 12px;
}

.coop-model h4 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--white);
  margin-bottom: 10px;
}

.coop-model p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.8;
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-lg);
  max-width: 640px;
  margin: 0 auto;
}

.contact-form h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--blue-deep);
  margin-bottom: 8px;
  text-align: center;
}

.contact-form > p {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-body);
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--cream-dark);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: border-color 0.3s;
  background: var(--cream);
  color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-primary);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
  outline: 3px solid rgba(245, 199, 53, 0.8);
  outline-offset: 2px;
  border-color: var(--blue-primary);
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
  min-height: 48px;
}
.contact-form .btn:disabled { opacity: 0.65; cursor: wait; transform: none; }

.form-success {
  display: none;
  text-align: center;
  padding: 24px;
  background: rgba(245, 199, 53, 0.1);
  border-radius: var(--radius-sm);
  color: var(--blue-deep);
  font-size: 0.92rem;
  margin-top: 16px;
}

.form-success.show { display: block; }

.form-privacy {
  margin-top: 12px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text-body);
  text-align: left;
}

/* ========== Footer ========== */
.footer {
  background: var(--blue-dark);
  color: var(--text-light);
  padding: 60px 0 30px;
}

.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a { color: var(--text-muted); text-decoration: none; }

.footer-icp {
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-icp a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
.footer-icp a:hover { color: var(--gold); }

/* ========== Responsive ========== */
@media (max-width: 900px) {
  body { margin-left: 0; }
  .nav {
    width: 56px;
    align-items: center;
  }
  .nav-inner { padding: 16px 6px 24px; }
  .nav-logo { padding-bottom: 12px; }
  .nav-logo-text { font-size: 0.7rem; }
  .nav-logo-icon { height: 28px; }
  .nav-menu a {
    font-size: 0;
    padding: 10px 4px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .nav-menu a::after {
    content: attr(data-label);
    font-size: 0.72rem;
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--blue-deep);
    color: var(--white);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  }
  .nav-menu a:hover::after,
  .nav-menu a:focus-visible::after { opacity: 1; }
  .nav-menu a.active::before { left: -3px; }

  .design-intro, .store-info, .company-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  body { margin-left: 0; }
  .nav {
    width: auto;
    top: 0; left: 0; right: 0; bottom: auto;
    height: auto;
    border-right: none;
    border-bottom: 1px solid rgba(245, 199, 53, 0.15);
    flex-direction: row;
    overflow-y: visible;
  }
  .nav-inner {
    flex-direction: row;
    height: 58px;
    padding: 0 16px;
    gap: 0;
  }
  .nav-logo {
    flex-direction: row;
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
    margin-right: auto;
    width: auto;
  }
  .nav-logo-text { font-size: 1rem; }
  .nav-logo-icon { height: 32px; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 58px; left: 0; right: 0;
    background: var(--blue-dark);
    flex-direction: column;
    padding: 12px 20px;
    gap: 0;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a {
    font-size: 0.88rem;
    padding: 12px 10px;
    min-height: 44px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: block;
  }
  .nav-menu a::after { display: none; }
  .nav-menu a.active::before {
    left: 0; top: auto; bottom: 0;
    transform: none;
    width: 100%; height: 2px;
    border-radius: 0;
  }
  .nav-toggle { display: block; }
  .section { padding: 60px 0; }
  .container { padding: 0 16px; }
  .form-row { grid-template-columns: 1fr; }
  .company-values { grid-template-columns: 1fr; }
  .hero-quote { font-size: 0.95rem; }
  .origin-quote-block { padding: 28px 20px; }
  .origin-quote-block p { font-size: 1.1rem; }
  .contact-form { padding: 32px 20px; }
  .faq-item summary { padding: 16px; font-size: 0.92rem; }
  .faq-answer { padding: 0 16px 18px; }
  .faq-cta { padding: 24px 18px; }
}

@media (max-width: 400px) {
  .hero h1 { font-size: 2rem; }
  .hero-desc { font-size: 0.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  html.js .reveal { opacity: 1; transform: none; }
}

/* ========== Stat Source ========== */
.stat-source {
  font-size: 0.72rem;
  color: var(--wood);
  margin-top: 6px;
}