/* ==========================================================================
   CACApex - Blush-Pink Technology Atelier Design System
   Colors: Soft White (#FFFCFC), Blush Pink (#D6A3B5), Dark Berry (#5D3446), Warm Gray (#70656A)
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-white: #FFFCFC;
  --bg-blush: #FAF0F4;
  --bg-blush-soft: #FDF6F8;
  --bg-card: #FFFFFF;
  --bg-card-translucent: rgba(255, 255, 255, 0.85);
  
  --color-berry: #5D3446;
  --color-berry-deep: #432331;
  --color-pink: #D6A3B5;
  --color-pink-soft: #E9C6D3;
  --color-pink-glow: rgba(214, 163, 181, 0.28);
  --color-gray: #70656A;
  --color-gray-light: #A3989D;
  --color-border: rgba(93, 52, 70, 0.12);
  --color-border-pink: rgba(214, 163, 181, 0.45);
  
  /* Typography */
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", STSong, serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  
  /* Layout Spacing */
  --container-width: 1200px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-subtle: 0 4px 20px rgba(93, 52, 70, 0.05);
  --shadow-hover: 0 12px 32px rgba(93, 52, 70, 0.12);
  --shadow-pink: 0 8px 24px rgba(214, 163, 181, 0.25);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-gray);
  background-color: var(--bg-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Typography Elements */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-berry);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  font-size: 36px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 32px;
  margin-bottom: 1rem;
}

h3 {
  font-size: 22px;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 18px;
}

p {
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

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

a:hover {
  color: var(--color-pink);
}

/* Utility Containers */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 5rem 0;
  position: relative;
}

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

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-subtitle {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-pink);
  margin-bottom: 0.5rem;
  display: block;
}

.text-highlight {
  color: var(--color-pink);
  font-style: normal;
}

/* Buttons & CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.85rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 1px solid transparent;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--color-berry);
  color: var(--bg-white);
  box-shadow: 0 4px 14px rgba(93, 52, 70, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-berry-deep);
  color: var(--bg-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(93, 52, 70, 0.35);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-berry);
  border-color: var(--color-berry);
}

.btn-secondary:hover {
  background-color: var(--bg-blush);
  color: var(--color-berry);
  border-color: var(--color-berry);
  transform: translateY(-2px);
}

.btn-blush {
  background-color: var(--color-pink);
  color: var(--color-berry-deep);
}

.btn-blush:hover {
  background-color: var(--color-pink-soft);
  transform: translateY(-2px);
}

/* Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 252, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-berry);
  letter-spacing: -0.01em;
}

.brand-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-berry) 0%, var(--color-pink) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--color-gray);
  padding: 0.5rem 0;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-pink);
  transition: width var(--transition-normal);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Nav Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-berry);
}

.mobile-menu-toggle svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

/* Hero Section */
.hero-section {
  padding: 4.5rem 0 5.5rem 0;
  background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-blush) 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-copy h1 {
  margin-bottom: 1.25rem;
  color: var(--color-berry);
}

.hero-lead {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-gray);
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-trust-badges {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--color-border);
  font-size: 0.88rem;
  color: var(--color-gray-light);
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Hero Translucent Atelier Dashboard Visual */
.hero-dashboard-container {
  position: relative;
  width: 100%;
  height: 440px;
}

.hero-dashboard-card {
  position: absolute;
  background: var(--bg-card-translucent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-pink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  padding: 1.5rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.hero-dashboard-card:hover {
  border-color: var(--color-pink);
}

.card-sheet-1 {
  top: 0;
  left: 0;
  right: 40px;
  bottom: 60px;
  z-index: 1;
}

.card-sheet-2 {
  top: 45px;
  left: 35px;
  right: 10px;
  bottom: 15px;
  z-index: 2;
  background: rgba(255, 252, 252, 0.95);
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.dashboard-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-berry);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-pink);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--color-pink);
}

.region-pills {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.region-pill {
  padding: 0.3rem 0.75rem;
  background: var(--bg-blush);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-berry);
}

/* Route Lines & Atelier Trace Animation */
.route-canvas {
  width: 100%;
  height: 220px;
  position: relative;
  background: linear-gradient(135deg, rgba(250, 240, 244, 0.4) 0%, rgba(255, 252, 252, 0.8) 100%);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--color-border);
  overflow: hidden;
}

.route-svg {
  width: 100%;
  height: 100%;
}

.route-line {
  stroke: var(--color-berry);
  stroke-width: 2;
  stroke-dasharray: 6, 6;
  fill: none;
  opacity: 0.7;
}

.route-line-animated {
  stroke: var(--color-pink);
  stroke-width: 2.5;
  stroke-dasharray: 20, 200;
  stroke-dashoffset: 220;
  fill: none;
  animation: traceLine 6s linear infinite;
}

@keyframes traceLine {
  0% {
    stroke-dashoffset: 220;
  }
  100% {
    stroke-dashoffset: -220;
  }
}

.node-point {
  fill: var(--color-berry);
  transition: transform var(--transition-fast);
}

.node-point-pink {
  fill: var(--color-pink);
}

/* Advantages Grid with Asymmetric Proportions */
.advantages-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.75rem;
}

.advantage-card {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-berry), var(--color-pink));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border-pink);
}

.advantage-card:hover::before {
  opacity: 1;
}

.advantage-card.card-large {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(145deg, #FFFFFF 0%, var(--bg-blush-soft) 100%);
}

.advantage-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-blush);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-berry);
  margin-bottom: 1.25rem;
  font-size: 1.35rem;
}

.advantage-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-pink);
  opacity: 0.6;
  line-height: 1;
  margin-bottom: 1rem;
}

/* Node Illustrative Showcase Section */
.node-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition-normal);
}

.node-card:hover {
  border-color: var(--color-pink);
  box-shadow: var(--shadow-subtle);
  transform: translateY(-3px);
}

.node-flag {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.node-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-berry);
  margin-bottom: 0.25rem;
}

.node-desc {
  font-size: 0.88rem;
  color: var(--color-gray);
}

.node-disclaimer {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--color-gray-light);
  text-align: center;
  font-style: italic;
}

/* Scenarios Grid (AI & Streaming) */
.scenario-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.65rem 1.5rem;
  border-radius: 30px;
  border: 1px solid var(--color-border);
  background: var(--bg-white);
  color: var(--color-gray);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--color-berry);
  color: #fff;
  border-color: var(--color-berry);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  border-color: var(--color-border-pink);
  box-shadow: var(--shadow-subtle);
}

.scenario-tag {
  align-self: flex-start;
  padding: 0.25rem 0.65rem;
  background: var(--bg-blush);
  color: var(--color-berry);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.scenario-card h3 {
  margin-bottom: 0.5rem;
}

.scenario-list {
  list-style: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--color-border);
  font-size: 0.9rem;
}

.scenario-list li {
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.scenario-list li::before {
  content: "•";
  color: var(--color-pink);
  font-weight: bold;
}

/* Pricing Section - Slender Columns */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1050px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card.popular {
  border-color: var(--color-pink);
  box-shadow: var(--shadow-pink);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--bg-blush-soft) 100%);
  transform: scale(1.03);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-berry);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.3rem 1rem;
  border-radius: 20px;
  text-transform: uppercase;
}

.pricing-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-berry);
  margin: 1.25rem 0 0.5rem 0;
}

.pricing-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-gray);
  font-family: var(--font-sans);
}

.pricing-features {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
  font-size: 0.95rem;
}

.pricing-features li {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(93, 52, 70, 0.06);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-pink);
  font-weight: bold;
}

.editorial-note {
  font-size: 0.82rem;
  color: var(--color-gray-light);
  margin-top: 0.5rem;
  font-style: italic;
}

/* Nine Article Cards Directly Below Pricing - Editorial Cover Style */
.articles-section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--color-border);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-subtle);
  position: relative;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-pink);
}

.article-card-cover {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-blush) 0%, #FFFFFF 100%);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

/* Background watermark radial glow for atelier aesthetic */
.article-card-cover::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, var(--color-pink-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.article-card-cover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-pink) 50%, transparent 100%);
}

.cover-header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  z-index: 2;
}

.article-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-berry);
  font-weight: 700;
}

.article-issue-badge {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-berry);
  background: rgba(93, 52, 70, 0.08);
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  border: 1px solid var(--color-border);
}

.cover-illustration-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  width: 100%;
  margin-top: auto;
  z-index: 2;
}

.cover-svg-graphic {
  width: 64px;
  height: 64px;
  opacity: 0.9;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  filter: drop-shadow(0 4px 10px rgba(93, 52, 70, 0.12));
}

.article-card:hover .cover-svg-graphic {
  transform: scale(1.12) rotate(3deg);
  opacity: 1;
}

.article-tag-pill {
  align-self: flex-start;
  background: var(--bg-card);
  padding: 0.25rem 0.7rem;
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--color-berry);
  font-weight: 600;
  border: 1px solid var(--color-border-pink);
  box-shadow: 0 2px 8px rgba(93, 52, 70, 0.04);
}

.article-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  color: var(--color-berry);
}

.article-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--color-gray-light);
  padding-top: 0.75rem;
  border-top: 1px dashed var(--color-border);
}

.read-more-link {
  font-weight: 600;
  color: var(--color-berry);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.read-more-link:hover {
  color: var(--color-pink);
}

/* Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
}

.testimonial-quote {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-gray);
  margin-bottom: 1.25rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-pink);
  color: var(--color-berry-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.author-info h4 {
  font-size: 0.95rem;
  color: var(--color-berry);
}

.author-info p {
  font-size: 0.8rem;
  color: var(--color-gray-light);
  margin-bottom: 0;
}

.sample-badge {
  font-size: 0.72rem;
  color: var(--color-gray-light);
  margin-top: 0.25rem;
  display: block;
}

/* FAQ Accordion Section */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-pink);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-berry);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-blush);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--color-berry);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--color-pink);
  color: var(--color-berry-deep);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.5rem 1.5rem;
  border-top: 1px dashed var(--color-border);
}

.faq-answer p {
  color: var(--color-gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Breadcrumbs */
.breadcrumb-nav {
  padding: 1rem 0;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  font-size: 0.88rem;
  color: var(--color-gray-light);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  padding: 0 0.5rem;
  color: var(--color-gray-light);
}

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

.breadcrumb-item a:hover {
  color: var(--color-berry);
}

.breadcrumb-item.active {
  color: var(--color-berry);
  font-weight: 600;
}

/* Article Page Layout */
.article-page {
  padding: 3.5rem 0 5rem 0;
}

.article-container {
  max-width: 820px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 2.5rem;
  text-align: center;
}

.article-header h1 {
  font-size: 2.3rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--color-gray-light);
}

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-subtle);
}

.article-content h2 {
  font-size: 1.6rem;
  margin: 2.25rem 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 1.75rem 0 0.75rem 0;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content blockquote {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--bg-blush-soft);
  border-left: 4px solid var(--color-pink);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-berry);
}

.related-articles {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.related-articles h3 {
  margin-bottom: 1.25rem;
  font-family: var(--font-serif);
}

.related-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.related-link-card {
  padding: 1.25rem;
  background: var(--bg-blush-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.related-link-card:hover {
  border-color: var(--color-pink);
  transform: translateY(-2px);
}

/* Footer Section */
.site-footer {
  background-color: var(--color-berry-deep);
  color: #E2D9DD;
  padding: 4.5rem 0 2rem 0;
  margin-top: auto;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand h3 {
  color: #FFF;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.footer-brand p {
  color: #C2B5BC;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col h4 {
  color: #FFF;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #C2B5BC;

  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-pink-soft);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: #A3969E;
}

.official-placeholder-notice {
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  color: #C2B5BC;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  h1 {
    font-size: 44px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .hero-dashboard-container {
    height: 380px;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .advantage-card.card-large {
    grid-column: auto;
    grid-row: auto;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
  }
  
  .pricing-card.popular {
    transform: none;
  }
  
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--bg-white);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-hover);
    display: none;
  }
  
  .nav-menu.is-active {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .header-actions {
    display: none;
  }
  
  .node-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .related-links-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 36px;
  }
  
  h2 {
    font-size: 26px;
  }
  
  .article-grid {
    grid-template-columns: 1fr;
  }
  
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  
  .node-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-cta-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .route-line-animated {
    animation: none !important;
  }
}