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

:root {
  /* Primary palette - Sleep / Calm / Premium */
  --color-midnight: #0A1628;
  --color-deep-navy: #122340;
  --color-navy: #1A3058;
  --color-slate: #2D4470;
  --color-dusk: #4A6496;
  --color-lavender: #8B9FD4;
  --color-lilac: #B8C5E8;
  --color-soft-lilac: #E0E7F5;
  
  /* Neutrals */
  --color-cream: #F8F6F1;
  --color-warm-white: #FDFCF9;
  --color-off-white: #F0EDE6;
  --color-light-gray: #E5E2DB;
  --color-mid-gray: #9A968E;
  --color-dark-gray: #4A4842;
  --color-charcoal: #2A2926;
  
  /* Accent */
  --color-gold: #C9A96E;
  --color-soft-gold: #DCC89A;
  --color-accent-blue: #3D7AB8;
  
  /* Typography */
  --font-serif: 'Noto Serif JP', 'Noto Serif SC', Georgia, serif;
  --font-sans: 'Noto Sans JP', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  
  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;
  
  /* Max width */
  --max-width: 1200px;
  --max-width-narrow: 800px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-charcoal);
  background: var(--color-warm-white);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.25s ease;
}

a:hover {
  opacity: 0.7;
}

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

/* ========== Layout ========== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-sm {
  padding: var(--space-lg) 0;
}

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(253, 252, 249, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-light-gray);
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-midnight);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-navy), var(--color-lavender));
  position: relative;
}

.logo-mark::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-soft-gold);
  opacity: 0.9;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-item {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-dark-gray);
  position: relative;
  padding: 4px 0;
  cursor: pointer;
}

.nav-item:hover {
  color: var(--color-midnight);
  opacity: 1;
}

.nav-item.has-submenu::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-left: 6px;
  margin-bottom: 2px;
}

.nav-submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: white;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(10, 22, 40, 0.12);
  padding: 12px 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.nav-item.has-submenu:hover .nav-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-submenu-item {
  display: block;
  padding: 10px 20px;
  font-size: 13px;
  color: var(--color-dark-gray);
  white-space: nowrap;
}

.nav-submenu-item:hover {
  background: var(--color-cream);
  color: var(--color-midnight);
  opacity: 1;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--color-deep-navy);
  opacity: 1;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(10, 22, 40, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--color-midnight);
  border: 1.5px solid var(--color-midnight);
}

.btn-outline:hover {
  background: var(--color-midnight);
  color: white;
  opacity: 1;
}

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

.btn-gold:hover {
  background: #B8985D;
  opacity: 1;
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 15px;
}

/* Mobile nav */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  z-index: 200;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-midnight);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--color-warm-white);
  z-index: 150;
  padding: 90px 24px 40px;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 22, 40, 0.5);
  z-index: 140;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-item {
  display: block;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-midnight);
  border-bottom: 1px solid var(--color-light-gray);
  cursor: pointer;
}

.mobile-nav-item-group {
  border-bottom: 1px solid var(--color-light-gray);
}

.mobile-nav-group-title {
  padding: 16px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-midnight);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-group-title::after {
  content: '';
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.3s;
}

.mobile-nav-group-title.open::after {
  transform: rotate(-135deg);
}

.mobile-nav-subitems {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.mobile-nav-subitems.open {
  max-height: 500px;
}

.mobile-nav-subitem {
  display: block;
  padding: 12px 0 12px 16px;
  font-size: 14px;
  color: var(--color-dark-gray);
  border-top: 1px solid var(--color-light-gray);
}

.mobile-nav-cta {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ========== Footer ========== */
.footer {
  background: var(--color-midnight);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: white;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo .logo-mark {
  width: 32px;
  height: 32px;
}

.footer-tagline {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-md);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social-item {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.footer-column h4 {
  color: white;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
  color: white;
  opacity: 1;
}

.footer-bottom {
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-copyright {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
}

.footer-legal a {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}

/* ========== Hero / Home ========== */
.hero {
  background: linear-gradient(180deg, var(--color-midnight) 0%, var(--color-deep-navy) 60%, var(--color-navy) 100%);
  color: white;
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 159, 212, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 110, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-md);
}

.hero-content h1 .accent {
  color: var(--color-soft-gold);
}

.hero-subtitle {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--space-lg);
  max-width: 480px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-product-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-product-image img {
  max-height: 450px;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.4));
  animation: float 6s ease-in-out infinite;
}

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

/* Trust bar */
.trust-bar {
  background: var(--color-cream);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-light-gray);
}

.trust-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-dark-gray);
}

.trust-item strong {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-midnight);
}

/* Section heading */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 600;
  color: var(--color-midnight);
  line-height: 1.4;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: 15px;
  color: var(--color-mid-gray);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Feature / Tech section */
.tech-section {
  background: var(--color-warm-white);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.tech-card {
  background: white;
  border-radius: 12px;
  padding: var(--space-lg);
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(10, 22, 40, 0.1);
}

.tech-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-soft-lilac), var(--color-lilac));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.tech-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-navy);
}

.tech-card h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: 10px;
}

.tech-card p {
  font-size: 14px;
  color: var(--color-mid-gray);
  line-height: 1.8;
}

/* Stats / Achievements */
.achievements-section {
  background: var(--color-midnight);
  color: white;
  position: relative;
  overflow: hidden;
}

.achievements-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 159, 212, 0.1) 0%, transparent 70%);
}

.achievements-section .section-title {
  color: white;
}

.achievements-section .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.achievement-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: var(--space-lg);
  text-align: center;
  backdrop-filter: blur(10px);
}

.achievement-number {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-soft-gold);
  margin-bottom: 8px;
  line-height: 1;
}

.achievement-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.cert-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.cert-logo {
  height: 50px;
  opacity: 0.8;
  filter: brightness(0) invert(1);
  transition: opacity 0.3s;
}

.cert-logo:hover {
  opacity: 1;
}

/* Interview */
.interview-section {
  background: var(--color-cream);
}

.interview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.interview-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.interview-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(10, 22, 40, 0.12);
}

.interview-image {
  width: 100%;
  aspect-ratio: 4/5;
  background: var(--color-soft-lilac);
  overflow: hidden;
}

.interview-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.interview-content {
  padding: var(--space-md);
}

.interview-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  background: rgba(201, 169, 110, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.interview-name {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: 6px;
}

.interview-title {
  font-size: 13px;
  color: var(--color-mid-gray);
  margin-bottom: 12px;
}

.interview-quote {
  font-size: 13px;
  color: var(--color-dark-gray);
  line-height: 1.7;
  font-style: italic;
}

/* Reviews */
.reviews-section {
  background: var(--color-warm-white);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.review-card {
  background: white;
  border-radius: 12px;
  padding: var(--space-lg);
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
  position: relative;
}

.review-stars {
  color: var(--color-gold);
  font-size: 16px;
  margin-bottom: var(--space-sm);
  letter-spacing: 2px;
}

.review-text {
  font-size: 14px;
  color: var(--color-dark-gray);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.review-author {
  font-size: 12px;
  color: var(--color-mid-gray);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-light-gray);
}

/* Blog / Reading */
.blog-section {
  background: var(--color-cream);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.blog-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(10, 22, 40, 0.12);
}

.blog-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

.blog-card:hover .blog-image img {
  transform: scale(1.05);
}

.blog-content {
  padding: var(--space-md);
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.blog-category {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-accent-blue);
  background: rgba(61, 122, 184, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
}

.blog-date {
  font-size: 12px;
  color: var(--color-mid-gray);
}

.blog-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-midnight);
  line-height: 1.5;
  margin-bottom: 8px;
}

.blog-excerpt {
  font-size: 13px;
  color: var(--color-mid-gray);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.section-link {
  text-align: center;
  margin-top: var(--space-lg);
}

.section-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-navy);
}

/* Store / B2B */
.store-section {
  background: var(--color-warm-white);
}

.store-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.store-card {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.store-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}

.store-card:hover .store-card-bg {
  transform: scale(1.05);
}

.store-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 22, 40, 0.8) 0%, rgba(10, 22, 40, 0.4) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  color: white;
}

.store-card h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

.store-card p {
  font-size: 14px;
  opacity: 0.8;
  margin-bottom: var(--space-sm);
}

.store-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
}

/* Brand story */
.brand-story-section {
  background: var(--color-midnight);
  color: white;
}

.brand-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.brand-story-image {
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/5;
}

.brand-story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-story-content .section-eyebrow {
  color: var(--color-soft-gold);
}

.brand-story-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-md);
  color: white;
}

.brand-story-content p {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-md);
}

/* Product hero for inner pages */
.page-hero {
  background: linear-gradient(180deg, var(--color-midnight) 0%, var(--color-deep-navy) 100%);
  color: white;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 159, 212, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.page-hero p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  font-size: 12px;
  color: var(--color-mid-gray);
  border-bottom: 1px solid var(--color-light-gray);
}

.breadcrumb a {
  color: var(--color-mid-gray);
}

.breadcrumb span {
  margin: 0 8px;
}

/* ========== Info / Content Pages ========== */
.content-page {
  background: var(--color-warm-white);
  padding: var(--space-xl) 0 var(--space-2xl);
}

.content-body {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.content-body h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--color-midnight);
  margin: var(--space-xl) 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-gold);
  line-height: 1.4;
}

.content-body h2:first-child {
  margin-top: 0;
}

.content-body h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-midnight);
  margin: var(--space-lg) 0 var(--space-sm);
  padding-left: 14px;
  border-left: 4px solid var(--color-gold);
  line-height: 1.4;
}

.content-body p {
  font-size: 15px;
  line-height: 2;
  color: var(--color-dark-gray);
  margin-bottom: var(--space-md);
}

.content-body ul, .content-body ol {
  margin: var(--space-md) 0;
  padding-left: 24px;
}

.content-body li {
  font-size: 15px;
  line-height: 2;
  color: var(--color-dark-gray);
  margin-bottom: 8px;
}

.content-body blockquote {
  background: var(--color-cream);
  border-left: 4px solid var(--color-gold);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--color-dark-gray);
  border-radius: 0 8px 8px 0;
}

.content-body .highlight-box {
  background: linear-gradient(135deg, var(--color-midnight), var(--color-navy));
  color: white;
  padding: var(--space-lg);
  border-radius: 12px;
  margin: var(--space-lg) 0;
}

.content-body .highlight-box h3 {
  color: white;
  border-left-color: var(--color-soft-gold);
  margin-top: 0;
}

.content-body .highlight-box p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.info-box {
  background: white;
  padding: var(--space-lg);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
}

.info-box h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-box p {
  font-size: 14px;
  color: var(--color-mid-gray);
  margin-bottom: 0;
}

/* Store list */
.store-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.store-list-item {
  background: white;
  padding: var(--space-md);
  border-radius: 10px;
  border: 1px solid var(--color-light-gray);
  display: flex;
  gap: var(--space-md);
}

.store-list-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-soft-lilac);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.store-list-info h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: 4px;
}

.store-list-info p {
  font-size: 13px;
  color: var(--color-mid-gray);
  margin-bottom: 0;
  line-height: 1.6;
}

/* Press / Media logos */
.press-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.press-item {
  background: white;
  border: 1px solid var(--color-light-gray);
  border-radius: 10px;
  padding: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.press-item:hover {
  border-color: var(--color-lavender);
  box-shadow: 0 4px 16px rgba(10, 22, 40, 0.08);
}

.press-item img {
  max-height: 40px;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.press-item:hover img {
  opacity: 1;
}

/* Contact form */
.contact-form {
  background: white;
  padding: var(--space-xl);
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
  max-width: 680px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-midnight);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #E57373;
  margin-left: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-light-gray);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: var(--color-warm-white);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-lavender);
  box-shadow: 0 0 0 3px rgba(139, 159, 212, 0.2);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: #E57373;
  background: #FFF5F5;
}

.form-group.has-error input:focus,
.form-group.has-error select:focus,
.form-group.has-error textarea:focus {
  border-color: #E57373;
  box-shadow: 0 0 0 3px rgba(229, 115, 115, 0.2);
}

.form-error {
  color: #E57373;
  font-size: 12px;
  margin-top: 6px;
  line-height: 1.4;
}

.form-success {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
}

.form-success-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: #E8F5E9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4CAF50;
  font-size: 28px;
}

.form-success h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--color-midnight);
  margin: 0 0 var(--space-sm) 0;
}

.form-success p {
  color: var(--color-mid-gray);
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 var(--space-lg) 0;
}

.form-error-tip {
  color: #E57373;
  font-size: 13px;
  text-align: center;
  margin-top: var(--space-sm);
}

/* 蜜罐字段：隐藏 */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-submit {
  text-align: center;
  margin-top: var(--space-lg);
}

/* ========== Product Pages ========== */
.product-hero {
  background: linear-gradient(180deg, var(--color-midnight) 0%, var(--color-deep-navy) 70%, var(--color-warm-white) 70%);
  padding: 120px 0 var(--space-xl);
}

.product-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.product-image-main {
  background: white;
  border-radius: 20px;
  padding: var(--space-xl);
  box-shadow: 0 20px 60px rgba(10, 22, 40, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
}

.product-image-main img {
  max-height: 400px;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.15));
}

.product-info h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-sm);
  letter-spacing: 0.04em;
}

.product-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: var(--space-lg);
}

.product-price .amount {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--color-soft-gold);
}

.product-price .currency {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.6);
}

.product-price .tax {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.product-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.product-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-soft-gold);
  border: 1px solid rgba(201, 169, 110, 0.3);
  letter-spacing: 0.05em;
}

.product-cta-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.product-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

.product-section {
  padding: var(--space-2xl) 0;
}

.product-section:nth-child(even) {
  background: var(--color-cream);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.feature-item {
  display: flex;
  gap: var(--space-md);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-slate));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-soft-gold);
}

.feature-text h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: 6px;
}

.feature-text p {
  font-size: 14px;
  color: var(--color-mid-gray);
  line-height: 1.7;
}

/* Specs */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
}

.specs-table th,
.specs-table td {
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--color-light-gray);
  font-size: 14px;
}

.specs-table th {
  background: var(--color-cream);
  font-weight: 500;
  color: var(--color-midnight);
  width: 30%;
}

.specs-table td {
  color: var(--color-dark-gray);
}

.specs-table tr:last-child th,
.specs-table tr:last-child td {
  border-bottom: none;
}

/* Collections grid */
.collections-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.collection-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.collection-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(10, 22, 40, 0.12);
}

.collection-card-image {
  aspect-ratio: 1;
  background: var(--color-soft-lilac);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.collection-card-image img {
  max-height: 280px;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

.collection-card-body {
  padding: var(--space-lg);
  text-align: center;
}

.collection-card-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: 6px;
}

.collection-card-desc {
  font-size: 13px;
  color: var(--color-mid-gray);
  margin-bottom: var(--space-sm);
}

.collection-card-price {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}

/* ========== Policy Pages ========== */
.policy-page {
  background: var(--color-warm-white);
  padding: var(--space-xl) 0 var(--space-2xl);
}

.policy-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  background: white;
  padding: var(--space-xl);
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.06);
}

.policy-content h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-midnight);
  margin: var(--space-lg) 0 var(--space-sm);
}

.policy-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-midnight);
  margin: var(--space-md) 0 var(--space-xs);
}

.policy-content p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-dark-gray);
  margin-bottom: var(--space-sm);
}

.policy-content ul, .policy-content ol {
  margin: var(--space-sm) 0;
  padding-left: 22px;
}

.policy-content li {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-dark-gray);
  margin-bottom: 6px;
}

/* ========== LP Pages ========== */
.lp-hero {
  background: linear-gradient(180deg, var(--color-midnight) 0%, var(--color-navy) 100%);
  color: white;
  padding: 120px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.lp-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.lp-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  line-height: 1.9;
}

.lp-section {
  padding: var(--space-2xl) 0;
}

.lp-section.lp-alt {
  background: var(--color-cream);
}

.lp-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.lp-point {
  text-align: center;
}

.lp-point-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-soft-lilac), var(--color-lilac));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.lp-point h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-midnight);
  margin-bottom: 10px;
}

.lp-point p {
  font-size: 14px;
  color: var(--color-mid-gray);
  line-height: 1.8;
}

.lp-cta-section {
  background: linear-gradient(180deg, var(--color-midnight), var(--color-deep-navy));
  color: white;
  padding: var(--space-2xl) 0;
  text-align: center;
}

.lp-cta-section h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.lp-cta-section p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
  
  .tech-grid,
  .interview-grid,
  .review-grid,
  .blog-grid,
  .lp-points {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .achievement-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-xl) 0;
  }
  
  .nav-desktop,
  .header-cta .btn {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hero {
    padding: 100px 0 60px;
  }
  
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-product-image img {
    max-height: 300px;
  }
  
  .trust-bar-inner {
    gap: var(--space-md);
  }
  
  .tech-grid,
  .interview-grid,
  .review-grid,
  .blog-grid,
  .store-grid,
  .lp-points,
  .collections-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }
  
  .brand-story {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .product-hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .product-hero {
    padding: 100px 0 var(--space-lg);
  }
  
  .page-hero {
    padding: 100px 0 60px;
  }
  
  .feature-list {
    grid-template-columns: 1fr;
  }
  
  .store-list,
  .press-grid {
    grid-template-columns: 1fr;
  }

  /* 门店图集移动端：全部单列 */
  .store-gallery {
    grid-template-columns: 1fr !important;
  }
  .store-gallery-featured {
    grid-row: span 1 !important;
  }
  .store-gallery-featured img {
    min-height: auto !important;
    aspect-ratio: 16/9;
  }

  /* 展会图集移动端：单列 */
  .expo-gallery {
    grid-template-columns: 1fr !important;
  }

  /* 研究室双图移动端：单列 */
  .lab-gallery {
    grid-template-columns: 1fr !important;
  }

/* 移动端标题换行控制：桌面端不换行 */
.mobile-only {
  display: none;
}

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
  .tech-points-grid {
    grid-template-columns: 1fr 1fr !important;
  }
  .tech-split {
    grid-template-columns: 1fr !important;
    gap: var(--space-md) !important;
  }
  .tech-flow {
    flex-direction: column !important;
  }
  .tech-flow-item {
    width: 100% !important;
    min-height: 80px !important;
  }
  .dbst-compare {
    grid-template-columns: 1fr !important;
  }
  .anim-grid {
    grid-template-columns: 1fr !important;
  }
  .research-paper {
    max-width: 100% !important;
  }
  .dbst-mech-svg {
    height: auto;
  }
  /* 03/04 技术区块移动端：单列图在上 */
  .tech-03-grid,
  .tech-04-grid {
    grid-template-columns: 1fr !important;
  }
  .tech-03-grid > div:first-child,
  .tech-04-text {
    padding: var(--space-md) var(--space-md) var(--space-lg) var(--space-md) !important;
    order: 2;
  }
  .tech-04-img {
    order: 1;
  }
  /* 移动端标题换行控制 */
  .mobile-only {
    display: inline;
  }

  .contact-form,
  .policy-content {
    padding: var(--space-md);
  }
  
  .achievement-number {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Page transition */
.page-fade-enter {
  opacity: 0;
  transform: translateY(10px);
}

.page-fade-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ========== 技术页专用样式 ========== */
.tech-page .content-body {
  max-width: var(--max-width);
  overflow-x: hidden;
}

.tech-page img,
.tech-page video,
.tech-page svg {
  max-width: 100%;
}

.tech-page p,
.tech-page h2,
.tech-page h3,
.tech-page h4 {
  overflow-wrap: break-word;
  word-break: break-word;
}

.tech-block {
  margin-bottom: var(--space-2xl);
}

/* 首屏主视频 */
.tech-hero-video {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: #000;
}

.tech-hero-video video {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* 四段要点卡片 */
.tech-points-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.tech-points-card {
  background: var(--color-off-white);
  padding: var(--space-md);
  border-radius: 12px;
  min-width: 0;
}

/* 左右分栏 */
.tech-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.tech-split-img {
  border-radius: 12px;
  overflow: hidden;
  min-width: 0;
}

.tech-split-img img {
  width: 100%;
  display: block;
  height: auto;
}

/* DBST 区块简介 */
.tech-block-intro {
  margin-bottom: var(--space-lg);
}

/* 对比条 */
.dbst-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: 16px;
  overflow: hidden;
  margin: 32px 0 40px 0;
}

.dbst-compare-left {
  background: #f5f0e8;
  padding: 28px;
}

.dbst-compare-left p:first-child,
.dbst-compare-right p:first-child {
  font-size: 12px;
  letter-spacing: 0.1em;
  margin: 0;
}

.dbst-compare-left h4,
.dbst-compare-right h4 {
  margin: 8px 0 10px 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
}

.dbst-compare-left p:last-child,
.dbst-compare-right p:last-child {
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

.dbst-compare-left {
  color: #666;
}

.dbst-compare-left p:first-child {
  color: #999;
}

.dbst-compare-right {
  background: #1a1a1a;
  padding: 28px;
}

.dbst-compare-right p:first-child {
  color: var(--color-gold);
}

.dbst-compare-right h4 {
  color: #fff;
}

.dbst-compare-right p:last-child {
  color: #ccc;
}

/* 机制流程图容器 */
.tech-mech-wrap {
  background: var(--color-off-white);
  padding: 32px 28px;
  border-radius: 16px;
  margin-bottom: 32px;
}

.tech-mech-eyebrow {
  font-size: 13px;
  color: var(--color-mid-gray);
  letter-spacing: 0.1em;
  margin: 0 0 20px 0;
  text-align: left;
}

.dbst-mech-svg.dbst-mech-horizontal {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  display: block;
}

/* 纵向堆叠版 —— 桌面隐藏 */
.dbst-mech-vertical {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 0 auto;
  max-width: 320px;
}

.mech-node {
  width: 100%;
  border-radius: 12px;
  padding: 20px 16px;
  text-align: center;
  box-sizing: border-box;
}

.mech-node-light {
  background: #fff;
  border: 1.5px solid #e8e0d0;
}

.mech-node-dark {
  background: #1a1a1a;
  border: 2px solid #c9a96e;
  padding: 24px 16px;
}

.mech-node-label {
  font-size: 11px;
  color: #c9a96e;
  letter-spacing: 3px;
  margin: 0 0 8px 0;
}

.mech-node-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px 0;
  color: #333;
}

.mech-title-gold {
  color: var(--color-gold);
  letter-spacing: 2px;
  font-size: 14px;
}

.mech-title-white {
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.mech-node-sub {
  font-size: 13px;
  color: #666;
  margin: 0 0 4px 0;
  line-height: 1.5;
}

.mech-sub-gray {
  color: #aaa;
}

.mech-node-desc {
  font-size: 12px;
  color: #999;
  margin: 0;
  line-height: 1.5;
}

.mech-desc-gray {
  color: #888;
}

.mech-arrow svg {
  display: block;
}

/* 动画演示视频 */
.tech-section-eyebrow {
  font-size: 13px;
  color: var(--color-mid-gray);
  letter-spacing: 0.1em;
  margin: 0 0 16px 0;
}

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

.tech-anim-card {
  position: relative;
  min-width: 0;
}

.tech-anim-card video {
  width: 100%;
  display: block;
  aspect-ratio: 1816 / 960;
  object-fit: contain;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
}

.tech-anim-toggle {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border: none;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 12px;
  cursor: pointer;
  min-width: 44px;
  min-height: 30px;
  line-height: 1;
  -webkit-appearance: none;
  appearance: none;
}

.tech-anim-caption {
  margin-top: 8px;
  text-align: left;
}

.tech-anim-caption p {
  margin: 0;
  color: var(--color-mid-gray);
  font-size: 12px;
  line-height: 1.6;
}

/* 深色技术区块 */
.tech-dark-block {
  background: #0d0d0d;
  border-radius: 16px;
  overflow: hidden;
}

.tech-block-dark {
  margin-bottom: 48px;
}

.tech-03-grid,
.tech-04-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 24px;
}

.tech-dark-text {
  padding: 48px 40px;
  color: #fff;
  min-width: 0;
}

.tech-dark-eyebrow {
  font-size: 13px;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  margin: 0 0 8px 0;
}

.tech-dark-text h2 {
  margin: 0 0 16px 0;
  color: #fff;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.3;
}

.tech-dark-text p {
  color: #bbb;
  line-height: 1.8;
  margin: 0;
  font-size: 15px;
}

.tech-dark-img {
  min-width: 0;
  padding: 24px;
  box-sizing: border-box;
}

.tech-dark-img img {
  width: 100%;
  display: block;
  height: auto;
  border-radius: 8px;
}

/* 研究文献 */
.tech-section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.tech-paper-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.tech-paper {
  width: 100%;
  max-width: 780px;
  text-align: center;
  min-width: 0;
  box-sizing: border-box;
}

.tech-paper-img {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  background: #fff;
  margin-bottom: var(--space-sm);
}

.tech-paper-img img {
  width: 100%;
  display: block;
  height: auto;
}

/* 结尾 CTA */
.tech-cta {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-off-white);
  border-radius: 16px;
}

.tech-cta p {
  font-size: 16px;
  color: var(--color-charcoal);
  margin: 0 0 var(--space-md) 0;
}

.tech-cta > div {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 技术页移动端 (≤768px) ===== */
@media (max-width: 768px) {
  .tech-page .content-body {
    padding: 0 var(--space-sm);
  }

  .tech-block {
    margin-bottom: 56px;
  }

  /* 标题字号 */
  .tech-page h2 {
    font-size: 26px;
    line-height: 1.35;
  }

  .tech-page p {
    font-size: 15px;
    line-height: 1.75;
  }

  /* 首屏视频 */
  .tech-hero-video {
    border-radius: 12px;
  }

  /* 四段要点：两列等宽 */
  .tech-points-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 20px;
  }

  .tech-points-card {
    padding: 14px;
    border-radius: 10px;
  }

  .tech-points-card h4 {
    font-size: 15px;
  }

  .tech-points-card p {
    font-size: 13px;
    line-height: 1.65;
  }

  /* 左右分栏：单列，图在文前 */
  .tech-split {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 对比条：上下两块 + 分隔线 */
  .dbst-compare {
    grid-template-columns: 1fr;
    border-radius: 12px;
    margin: 24px 0 28px 0;
  }

  .dbst-compare-left,
  .dbst-compare-right {
    padding: 24px 20px;
    position: relative;
  }

  .dbst-compare-left h4,
  .dbst-compare-right h4 {
    font-size: 17px;
  }

  .dbst-compare-left::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20px;
    right: 20px;
    height: 1px;
    background: #e0d8c8;
  }

  /* 机制图：隐藏横向版，显示纵向版 */
  .tech-mech-wrap {
    padding: 24px 20px;
    border-radius: 12px;
    margin-bottom: 24px;
  }

  .dbst-mech-horizontal {
    display: none !important;
  }

  .dbst-mech-vertical {
    display: flex;
  }

  /* 动画视频：单列 */
  .anim-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tech-anim-card {
    border-radius: 10px;
  }

  .tech-anim-toggle {
    min-height: 36px;
    padding: 0 14px;
    font-size: 13px;
    top: 8px;
    right: 8px;
  }

  /* 深色区块：单列 + 图在文前 */
  .tech-03-grid,
  .tech-04-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .tech-dark-text {
    padding: 0 20px 28px 20px;
    order: 2;
  }

  .tech-dark-img {
    order: 1;
    padding: 20px;
  }

  .tech-dark-block {
    border-radius: 12px;
  }

  /* 研究文献 */
  .tech-paper-list {
    gap: 32px;
  }

  .tech-paper {
    max-width: 100%;
  }

  .tech-paper h4 {
    font-size: 14px;
    line-height: 1.6;
  }

  .tech-paper p {
    font-size: 12px;
    line-height: 1.6;
  }

  /* 结尾 CTA */
  .tech-cta {
    padding: 32px 20px;
    border-radius: 12px;
  }

  .tech-cta .btn {
    min-height: 44px;
  }
}

/* ===== 技术页小屏 (≤480px) ===== */
@media (max-width: 480px) {
  .tech-page h2 {
    font-size: 22px;
  }

  .tech-page .tech-points-grid {
    grid-template-columns: 1fr !important;
  }

  .tech-page p {
    font-size: 15px;
    line-height: 1.8;
  }
}