/* ==========================================================================
   KTM YUN (ktmyun.sbs) - Tectonic Bedrock Spec Theme (地幔基岩与构造地堑风)
   ========================================================================== */

:root {
  --bg-basalt: #0E0E10;
  --bg-surface: #141519;
  --bg-card: #1B1C22;
  --bg-card-hover: #22242B;
  --border-slate: #2B2D36;
  --border-lava: rgba(201, 59, 43, 0.4);
  
  --lava-red: #C93B2B;
  --lava-glow: #FF4D36;
  --lava-subtle: rgba(201, 59, 43, 0.15);
  
  --text-primary: #F0F2F5;
  --text-secondary: #9EA3B0;
  --text-muted: #646875;
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --shadow-bedrock: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 1px inset rgba(255, 255, 255, 0.05);
  --shadow-lava-glow: 0 0 25px rgba(201, 59, 43, 0.25), 0 0 2px #C93B2B;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-basalt);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
}

body {
  position: relative;
  min-height: 100vh;
  background: var(--bg-basalt);
  cursor: default;
}

/* Background Contour & Grid Overlay */
#tectonic-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

#cursor-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
}

/* Typography & General */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

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

a:hover {
  color: #FF7A66;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: var(--lava-subtle);
  border: 1px solid var(--border-lava);
  border-radius: var(--radius-sm);
  color: var(--lava-glow);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-tag::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--lava-glow);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--lava-glow);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #A0A5B5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 1px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, #C93B2B 0%, #9B281B 100%);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lava-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #E34331 0%, #B83021 100%);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(201, 59, 43, 0.5), 0 0 4px #FF4D36;
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-slate);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--lava-red);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: 1.05rem;
}

/* Header & Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background: rgba(14, 14, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(43, 45, 54, 0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--lava-red) 0%, #6E1A11 100%);
  border: 1px solid var(--lava-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(201, 59, 43, 0.4);
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  fill: #FFFFFF;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.925rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 160px 0 100px 0;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-slate);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: #10B981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10B981;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-title span {
  color: var(--lava-glow);
  text-shadow: 0 0 20px rgba(201, 59, 43, 0.4);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-slate);
}

.stat-item h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* Hero Terminal Box (Tectonic Spec Visual) */
.hero-visual {
  position: relative;
}

.hero-terminal {
  background: var(--bg-surface);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-bedrock);
  overflow: hidden;
  position: relative;
}

.hero-terminal::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--lava-glow), transparent);
}

.terminal-header {
  background: rgba(14, 14, 16, 0.9);
  padding: 0.75rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-slate);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-slate);
}

.dot.red { background: #EF4444; }
.dot.yellow { background: #F59E0B; }
.dot.green { background: #10B981; }

.terminal-title {
  font-size: 0.8rem;
  font-mono: var(--font-mono);
  color: var(--text-muted);
}

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
}

.line {
  display: flex;
  margin-bottom: 0.5rem;
}

.prompt {
  color: var(--lava-glow);
  margin-right: 0.75rem;
}

.cmd {
  color: var(--text-primary);
}

.output {
  color: var(--text-secondary);
  padding-left: 1.5rem;
}

.status-ok {
  color: #10B981;
  font-weight: 700;
}

/* Features Grid */
.features {
  padding: 90px 0;
  background: linear-gradient(180deg, var(--bg-basalt) 0%, var(--bg-surface) 100%);
  position: relative;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  padding: 2.2rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  position: relative;
  box-shadow: var(--shadow-bedrock);
}

.feature-card:hover {
  border-color: var(--border-lava);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.9), 0 0 15px rgba(201, 59, 43, 0.15);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--lava-subtle);
  border: 1px solid var(--border-lava);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--lava-glow);
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.8rem;
}

.feature-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Pricing Grid */
.pricing {
  padding: 90px 0;
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  padding: 2.2rem 1.8rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card.popular {
  border-color: var(--lava-glow);
  background: linear-gradient(180deg, #22242E 0%, #1B1C22 100%);
  box-shadow: 0 0 30px rgba(201, 59, 43, 0.25);
}

.popular-badge {
  position: absolute;
  top: -14px;
  right: 1.5rem;
  background: var(--lava-red);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.8rem;
  border-radius: 50px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-header h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.pricing-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pricing-price {
  margin-bottom: 1.8rem;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--lava-glow);
}

.price-val {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-primary);
  font-family: var(--font-mono);
  line-height: 1;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}

.pricing-features svg {
  width: 16px;
  height: 16px;
  color: var(--lava-glow);
  flex-shrink: 0;
}

/* Articles Section */
.articles-section {
  padding: 90px 0;
  background: var(--bg-surface);
  position: relative;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.article-card:hover {
  border-color: var(--lava-red);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.8), 0 0 12px rgba(201, 59, 43, 0.2);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.article-tag {
  background: var(--lava-subtle);
  color: var(--lava-glow);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.article-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.article-card h3 a {
  color: var(--text-primary);
}

.article-card h3 a:hover {
  color: var(--lava-glow);
}

.article-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.article-link {
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--lava-glow);
}

.article-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.article-link:hover svg {
  transform: translateX(4px);
}

/* Customer Reviews */
.reviews-section {
  padding: 90px 0;
  position: relative;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
}

.review-stars {
  display: flex;
  gap: 3px;
  color: #F59E0B;
  margin-bottom: 1rem;
}

.review-text {
  font-size: 0.925rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--border-slate);
  border: 2px solid var(--lava-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--text-primary);
}

.author-info h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

/* FAQ Section */
.faq-section {
  padding: 90px 0;
  background: var(--bg-surface);
  position: relative;
}

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item.active {
  border-color: var(--border-lava);
}

.faq-question {
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  user-select: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
  color: var(--lava-glow);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background: rgba(14, 14, 16, 0.4);
}

.faq-answer-content {
  padding: 1.2rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.925rem;
  border-top: 1px solid rgba(43, 45, 54, 0.4);
  line-height: 1.7;
}

/* Footer Section & PBN Link Pipeline */
.site-footer {
  background: #09090B;
  border-top: 1px solid var(--border-slate);
  padding: 60px 0 30px 0;
  position: relative;
  z-index: 10;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand {
  padding-right: 1.5rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.footer-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-col ul a:hover {
  color: var(--lava-glow);
}

/* PBN Friendly Links Pipeline Area (小字号、高隐蔽性融合风格) */
.pbn-pipeline-box {
  border-top: 1px dashed var(--border-slate);
  padding-top: 2rem;
  margin-top: 2rem;
  text-align: center;
}

.pbn-pipeline-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
}

.pbn-links-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.pbn-links-list li a {
  font-size: 0.775rem;
  color: #646875;
  transition: color var(--transition-fast);
}

.pbn-links-list li a:hover {
  color: var(--lava-glow);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(43, 45, 54, 0.4);
  padding-top: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Article Page Layout Specifics */
.article-detail-header {
  padding: 140px 0 40px 0;
  background: linear-gradient(180deg, var(--bg-basalt) 0%, var(--bg-surface) 100%);
  border-bottom: 1px solid var(--border-slate);
}

.article-detail-body {
  padding: 60px 0;
  max-width: 860px;
  margin: 0 auto;
}

.article-detail-body h2 {
  font-size: 1.6rem;
  margin: 2.2rem 0 1rem 0;
  color: var(--text-primary);
  border-left: 3px solid var(--lava-red);
  padding-left: 0.75rem;
}

.article-detail-body h3 {
  font-size: 1.3rem;
  margin: 1.8rem 0 0.8rem 0;
  color: var(--text-primary);
}

.article-detail-body p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #C2C6D1;
  margin-bottom: 1.4rem;
}

.article-detail-body ul, .article-detail-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: #C2C6D1;
  font-size: 1.025rem;
  line-height: 1.7;
}

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

.article-callout {
  background: var(--bg-card);
  border: 1px solid var(--border-lava);
  border-left: 4px solid var(--lava-glow);
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  margin: 2rem 0;
}

.article-callout h4 {
  color: var(--lava-glow);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.article-callout p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Responsive Rules */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-basalt);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-slate);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* ==========================================================================
   Download Modal & Download Center Spec (Rules 4, 5, 9, 17)
   ========================================================================== */

body.modal-open {
  overflow: hidden !important;
}

/* Download Modal */
.download-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.download-modal.active {
  display: flex;
}

.download-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 14, 0.85);
  backdrop-filter: blur(8px);
}

.download-modal-dialog {
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-lava);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  box-shadow: var(--shadow-bedrock), var(--shadow-lava-glow);
  padding: 2.2rem 2rem;
  text-align: center;
  animation: modalFadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.download-modal-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  background: transparent;
  border: none;
  font-size: 1.8rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem 0.5rem;
  transition: color var(--transition-fast);
}

.download-modal-close:hover {
  color: var(--lava-glow);
}

.modal-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--lava-glow);
  background: var(--lava-subtle);
  border: 1px solid var(--border-lava);
  border-radius: 999px;
  margin-bottom: 0.8rem;
}

.modal-title {
  font-size: 1.45rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
  font-weight: 800;
}

.modal-subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  line-height: 1.5;
}

.modal-selected-plan {
  background: rgba(201, 59, 43, 0.12);
  border: 1px dashed var(--lava-red);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.8rem;
  font-size: 0.85rem;
  color: var(--lava-glow);
  font-family: var(--font-mono);
  margin-bottom: 1.2rem;
  display: inline-block;
}

.platform-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.platform-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.2rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.platform-card:hover {
  border-color: var(--lava-glow);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(201, 59, 43, 0.25);
}

.platform-card .platform-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  color: var(--lava-glow);
}

.platform-card .platform-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.platform-card .platform-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.platform-card .platform-action {
  margin-top: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #FFFFFF;
  background: linear-gradient(135deg, #C93B2B 0%, #9B281B 100%);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  width: 100%;
}

.modal-steps-guide {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  padding: 0.8rem 0.5rem;
  margin-bottom: 1.2rem;
}

.modal-steps-guide .guide-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.modal-steps-guide .step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--lava-subtle);
  color: var(--lava-glow);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-lava);
}

.download-center-link {
  font-size: 0.88rem;
  color: var(--lava-glow);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast);
}

.download-center-link:hover {
  color: #FFFFFF;
  gap: 0.6rem;
}

/* Download Center Page Specific */
.download-hero {
  padding: 8rem 0 3.5rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.download-platforms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 900px;
  margin: 2.5rem auto 0;
  text-align: left;
}

.download-platform-box {
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  position: relative;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.download-platform-box:hover {
  border-color: var(--lava-glow);
  box-shadow: var(--shadow-lava-glow);
  transform: translateY(-3px);
}

.download-platform-box .rec-tag {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--lava-subtle);
  color: var(--lava-glow);
  border: 1px solid var(--border-lava);
}

.download-platform-box .box-icon {
  margin-bottom: 1.2rem;
  color: var(--lava-glow);
}

.download-platform-box h3 {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
}

.download-platform-box p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.2rem;
}

.download-specs-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex-grow: 1;
}

.download-specs-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-slate);
  padding-bottom: 0.5rem;
}

.download-specs-list li span {
  color: var(--text-muted);
}

.download-specs-list li strong {
  color: var(--text-primary);
}

.download-steps-section {
  padding: 4rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-slate);
  border-bottom: 1px solid var(--border-slate);
  position: relative;
  z-index: 1;
}

.steps-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-slate);
  border-radius: var(--radius-md);
  padding: 1.6rem 1.4rem;
  position: relative;
}

.step-card .step-badge-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--lava-red);
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.step-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .platform-cards {
    grid-template-columns: 1fr;
  }
  .download-platforms-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .steps-flow-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .modal-steps-guide {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
  }
}