/* ============================================
   Google Chrome Download Site - Neon Prism Theme
   Design: Digital Glass / Dark Modern
   Primary: Electric Purple (#8b5cf6)
   Secondary: Cyan (#06b6d4)
   Accent: Lime (#84cc16)
   Base: Deep Navy (#0f172a)
   ============================================ */

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: #0f172a;
  color: #f8fafc;
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* Animations */
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.3); }
  50% { box-shadow: 0 0 40px rgba(139, 92, 246, 0.6); }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Layout */
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.prism-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}
.prism-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.prism-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: #f8fafc;
}
.prism-brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prism-brand-icon svg { width: 22px; height: 22px; }
.prism-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.prism-link {
  padding: 10px 20px;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #94a3b8;
  transition: all 0.3s ease;
}
.prism-link:hover { color: #f8fafc; background: rgba(139, 92, 246, 0.1); }
.prism-link.on {
  color: #fff;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}
.prism-nav-dl {
  padding: 10px 24px;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #84cc16, #06b6d4);
  box-shadow: 0 4px 20px rgba(132, 204, 22, 0.3);
  transition: all 0.3s ease;
  margin-left: 16px;
}
.prism-nav-dl:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(132, 204, 22, 0.5);
}
.prism-mob-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(139, 92, 246, 0.1);
  align-items: center;
  justify-content: center;
}
.prism-mob-toggle svg { width: 24px; height: 24px; color: #8b5cf6; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
}
.btn-prism {
  color: #fff;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}
.btn-prism:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6);
}
.btn-lime {
  color: #0f172a;
  background: linear-gradient(135deg, #84cc16, #10b981);
  box-shadow: 0 4px 20px rgba(132, 204, 22, 0.4);
}
.btn-lime:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(132, 204, 22, 0.6);
}
.btn-outline {
  color: #f8fafc;
  border: 2px solid rgba(139, 92, 246, 0.5);
  background: transparent;
}
.btn-outline:hover {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.1);
}
.btn-lg { padding: 16px 36px; font-size: 1.125rem; }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

/* Sections */
.sec {
  padding: 100px 0;
  position: relative;
}
.sec-head {
  text-align: center;
  margin-bottom: 60px;
}
.sec-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.sec-label-prism {
  background: rgba(139, 92, 246, 0.15);
  color: #8b5cf6;
  border: 1px solid rgba(139, 92, 246, 0.3);
}
.sec-label-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: #06b6d4;
  border: 1px solid rgba(6, 182, 212, 0.3);
}
.sec-label-lime {
  background: rgba(132, 204, 22, 0.15);
  color: #84cc16;
  border: 1px solid rgba(132, 204, 22, 0.3);
}
.sec-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #f8fafc, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sec-sub {
  font-size: 1.25rem;
  color: #64748b;
  max-width: 600px;
  margin: 0 auto;
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 80%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(6, 182, 212, 0.1) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #8b5cf6;
  margin-bottom: 24px;
}
.hero-tag-dot {
  width: 8px;
  height: 8px;
  background: #84cc16;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.hero-title {
  font-size: 3.75rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-title .hl { color: #8b5cf6; }
.hero-title .hl2 { color: #06b6d4; }
.hero-desc {
  font-size: 1.25rem;
  color: #94a3b8;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}
.hero-trust {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: #64748b;
}
.hero-trust-item svg { width: 18px; height: 18px; color: #84cc16; }
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-prism {
  width: 400px;
  height: 320px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 24px;
  position: relative;
  animation: float 6s ease-in-out infinite;
  backdrop-filter: blur(10px);
}
.hero-prism::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 26px;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4, #84cc16);
  z-index: -1;
  opacity: 0.3;
}
.prism-card {
  position: absolute;
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 16px;
  padding: 20px;
  backdrop-filter: blur(10px);
}
.pc-1 { top: -20px; left: -30px; width: 180px; }
.pc-2 { top: 40px; right: -40px; width: 160px; }
.pc-3 { bottom: -10px; left: 20px; width: 200px; }
.pc-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.pc-icon.vi { background: rgba(139, 92, 246, 0.2); color: #8b5cf6; }
.pc-icon.cy { background: rgba(6, 182, 212, 0.2); color: #06b6d4; }
.pc-icon.lm { background: rgba(132, 204, 22, 0.2); color: #84cc16; }
.pc-icon svg { width: 22px; height: 22px; }
.pc-label { font-size: 0.75rem; color: #64748b; margin-bottom: 4px; }
.pc-val { font-size: 1.25rem; font-weight: 700; color: #f8fafc; }

/* Feature Grid */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feat-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.feat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #8b5cf6, #06b6d4);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.feat-card:hover {
  transform: translateY(-8px);
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.feat-card:hover::before { opacity: 1; }
.feat-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feat-icon.fi-prism { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.feat-icon.fi-cyan { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }
.feat-icon.fi-lime { background: rgba(132, 204, 22, 0.15); color: #84cc16; }
.feat-icon.fi-rose { background: rgba(244, 63, 94, 0.15); color: #f43f5e; }
.feat-icon.fi-amber { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.feat-icon.fi-violet { background: rgba(167, 139, 250, 0.15); color: #a78bfa; }
.feat-icon svg { width: 28px; height: 28px; }
.feat-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 12px;
}
.feat-desc {
  font-size: 0.9375rem;
  color: #64748b;
  line-height: 1.7;
}

/* Platform Grid */
.plat-sec {
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}
.plat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.plat-card {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(139, 92, 246, 0.15);
  border-radius: 20px;
  padding: 28px;
  text-align: center;
  transition: all 0.3s ease;
}
.plat-card:hover {
  transform: translateY(-5px);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 15px 35px rgba(139, 92, 246, 0.2);
}
.plat-card.featured {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(6, 182, 212, 0.1));
  border-color: rgba(139, 92, 246, 0.4);
  position: relative;
}
.plat-card.featured::before {
  content: '推荐';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 0 0 12px 12px;
}
.plat-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 16px;
}
.plat-icon svg { width: 32px; height: 32px; color: #8b5cf6; }
.plat-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 8px;
}
.plat-ver {
  font-size: 0.875rem;
  color: #64748b;
  margin-bottom: 16px;
}
.plat-desc {
  font-size: 0.8125rem;
  color: #64748b;
  margin-bottom: 20px;
}
.plat-btn {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  transition: all 0.3s ease;
}
.plat-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4); }

/* Deep Feature Rows */
.deep-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.deep-row.flip { direction: rtl; }
.deep-row.flip > * { direction: ltr; }
.deep-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.deep-chip.dc-prism { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.deep-chip.dc-cyan { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }
.deep-chip.dc-lime { background: rgba(132, 204, 22, 0.15); color: #84cc16; }
.deep-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 20px;
  line-height: 1.3;
}
.deep-desc {
  font-size: 1.0625rem;
  color: #64748b;
  margin-bottom: 24px;
  line-height: 1.8;
}
.deep-list { margin-bottom: 24px; }
.deep-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 1rem;
  color: #94a3b8;
}
.deep-list li svg { width: 20px; height: 20px; color: #84cc16; flex-shrink: 0; margin-top: 2px; }
.deep-visual {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 20px;
  padding: 32px;
}
.dv-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: #64748b;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.dv-bar-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.dv-bar-label {
  width: 100px;
  font-size: 0.875rem;
  color: #94a3b8;
  flex-shrink: 0;
}
.dv-bar-track {
  flex: 1;
  height: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 5px;
  overflow: hidden;
}
.dv-bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 1s ease;
}
.dv-bar-fill.bf-prism { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }
.dv-bar-fill.bf-cyan { background: linear-gradient(90deg, #06b6d4, #22d3ee); }
.dv-bar-fill.bf-lime { background: linear-gradient(90deg, #84cc16, #a3e635); }
.dv-bar-fill.bf-rose { background: linear-gradient(90deg, #f43f5e, #fb7185); }
.dv-bar-val {
  width: 50px;
  font-size: 0.875rem;
  font-weight: 700;
  color: #f8fafc;
  text-align: right;
  flex-shrink: 0;
}
.dv-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.dv-stat {
  background: rgba(15, 23, 42, 0.6);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}
.dv-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
}
.dv-stat-num.c-prism { color: #8b5cf6; }
.dv-stat-num.c-cyan { color: #06b6d4; }
.dv-stat-num.c-lime { color: #84cc16; }
.dv-stat-lbl { font-size: 0.75rem; color: #64748b; }

/* Reviews */
.rev-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.rev-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 20px;
  padding: 28px;
  transition: all 0.3s ease;
}
.rev-card:hover {
  transform: translateY(-5px);
  border-color: rgba(139, 92, 246, 0.3);
}
.rev-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.rev-avatar {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}
.rev-avatar.av-prism { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }
.rev-avatar.av-cyan { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.rev-avatar.av-lime { background: linear-gradient(135deg, #84cc16, #a3e635); }
.rev-avatar.av-rose { background: linear-gradient(135deg, #f43f5e, #fb7185); }
.rev-avatar.av-amber { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.rev-avatar.av-violet { background: linear-gradient(135deg, #a78bfa, #c4b5fd); }
.rev-meta { flex: 1; }
.rev-name { font-weight: 700; color: #f8fafc; margin-bottom: 4px; }
.rev-role { font-size: 0.8125rem; color: #64748b; }
.rev-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}
.rev-stars svg { width: 18px; height: 18px; color: #f59e0b; }
.rev-text {
  font-size: 0.9375rem;
  color: #94a3b8;
  line-height: 1.7;
}

/* Stats Band */
.stats-band {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(6, 182, 212, 0.1));
  border-top: 1px solid rgba(139, 92, 246, 0.2);
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  padding: 60px 0;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}
.stat-num {
  font-size: 2.75rem;
  font-weight: 900;
  margin-bottom: 8px;
}
.stat-num.c-prism { color: #8b5cf6; }
.stat-num.c-cyan { color: #06b6d4; }
.stat-num.c-lime { color: #84cc16; }
.stat-num.c-rose { color: #f43f5e; }
.stat-lbl { font-size: 1rem; color: #64748b; }

/* Comparison Table */
.cmp-wrap { overflow-x: auto; }
.cmp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.cmp-table th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  color: #f8fafc;
  background: rgba(30, 41, 59, 0.8);
  border-bottom: 2px solid rgba(139, 92, 246, 0.3);
}
.cmp-table th:first-child { border-radius: 12px 0 0 0; }
.cmp-table th:last-child { border-radius: 0 12px 0 0; }
.cmp-table td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: #94a3b8;
}
.cmp-table tr:hover td { background: rgba(139, 92, 246, 0.05); }
.cmp-hl { color: #8b5cf6; font-weight: 700; }
.cmp-table .yes { color: #84cc16; font-weight: 600; }
.cmp-table .no { color: #64748b; }
.cmp-table .part { color: #f59e0b; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item:hover { border-color: rgba(139, 92, 246, 0.2); }
.faq-item.open { border-color: rgba(139, 92, 246, 0.3); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  cursor: pointer;
  font-size: 1.0625rem;
  font-weight: 600;
  color: #f8fafc;
}
.faq-chevron {
  width: 24px;
  height: 24px;
  color: #8b5cf6;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-a { max-height: 500px; }
.faq-a-inner {
  padding: 0 24px 24px;
  color: #64748b;
  line-height: 1.8;
  font-size: 0.9375rem;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 24px;
  padding: 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(132, 204, 22, 0.15);
  border: 1px solid rgba(132, 204, 22, 0.3);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #84cc16;
  margin-bottom: 20px;
}
.cta-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 16px;
}
.cta-desc {
  font-size: 1.125rem;
  color: #64748b;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* Download Page Styles */
.dl-hero {
  padding: 140px 0 60px;
  text-align: center;
}
.dl-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(132, 204, 22, 0.15);
  border: 1px solid rgba(132, 204, 22, 0.3);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #84cc16;
  margin-bottom: 24px;
}
.dl-hero-title {
  font-size: 3rem;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 16px;
}
.dl-hero-sub {
  font-size: 1.25rem;
  color: #64748b;
  max-width: 600px;
  margin: 0 auto 40px;
}
.dl-main-wrap {
  max-width: 600px;
  margin: 0 auto 60px;
}
.dl-main-card {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(6, 182, 212, 0.1));
  border: 2px solid rgba(139, 92, 246, 0.3);
  border-radius: 24px;
  padding: 40px;
  position: relative;
  animation: glow 3s ease-in-out infinite;
}
.dl-main-top {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
}
.dl-main-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dl-main-icon svg { width: 40px; height: 40px; color: #fff; }
.dl-main-info { flex: 1; }
.dl-main-name {
  font-size: 1.75rem;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 4px;
}
.dl-main-meta { font-size: 0.9375rem; color: #64748b; }
.dl-main-body { margin-bottom: 32px; }
.dl-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.dl-spec {
  background: rgba(15, 23, 42, 0.6);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}
.dl-spec-label {
  font-size: 0.75rem;
  color: #64748b;
  margin-bottom: 4px;
  text-transform: uppercase;
}
.dl-spec-val {
  font-size: 1rem;
  font-weight: 700;
  color: #f8fafc;
}
.dl-sec-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: rgba(132, 204, 22, 0.1);
  border: 1px solid rgba(132, 204, 22, 0.3);
  border-radius: 9999px;
  font-size: 0.875rem;
  color: #84cc16;
}
.dl-sec-badge svg { width: 18px; height: 18px; }
.dl-main-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
}
.op-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}
.op-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
}
.op-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 14px;
}
.op-icon svg { width: 28px; height: 28px; color: #8b5cf6; }
.op-name { font-size: 1.25rem; font-weight: 700; color: #f8fafc; margin-bottom: 8px; }
.op-ver { font-size: 0.875rem; color: #64748b; margin-bottom: 20px; }
.op-steps { text-align: left; margin-bottom: 24px; }
.op-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.875rem;
  color: #94a3b8;
}
.op-step-n {
  width: 24px;
  height: 24px;
  background: rgba(139, 92, 246, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #8b5cf6;
  flex-shrink: 0;
}

/* Guide Grid */
.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.guide-col-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 24px;
}
.guide-col-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.guide-col-dot.gcd-prism { background: #8b5cf6; }
.guide-col-dot.gcd-cyan { background: #06b6d4; }
.guide-steps { background: rgba(30, 41, 59, 0.6); border-radius: 16px; padding: 24px; }
.gstep {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}
.gstep:last-child { margin-bottom: 0; }
.gstep-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.gstep-num.gn-prism { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }
.gstep-num.gn-cyan { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.gstep-body { flex: 1; }
.gstep-title { font-weight: 700; color: #f8fafc; margin-bottom: 6px; }
.gstep-desc { font-size: 0.875rem; color: #64748b; line-height: 1.6; }

/* Requirements */
.req-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}
.req-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
}
.req-card:hover { border-color: rgba(139, 92, 246, 0.3); }
.req-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 12px;
}
.req-icon svg { width: 24px; height: 24px; color: #8b5cf6; }
.req-title { font-size: 0.875rem; color: #64748b; margin-bottom: 8px; }
.req-val { font-size: 1.125rem; font-weight: 700; color: #f8fafc; }

/* Version Timeline */
.ver-list { max-width: 800px; margin: 0 auto 60px; }
.ver-item {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
}
.ver-dot-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.ver-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 3px solid;
}
.ver-dot.vd-prism { border-color: #8b5cf6; background: rgba(139, 92, 246, 0.2); }
.ver-dot.vd-cyan { border-color: #06b6d4; background: rgba(6, 182, 212, 0.2); }
.ver-dot.vd-lime { border-color: #84cc16; background: rgba(132, 204, 22, 0.2); }
.ver-dot.vd-rose { border-color: #f43f5e; background: rgba(244, 63, 94, 0.2); }
.ver-line {
  flex: 1;
  width: 2px;
  background: rgba(139, 92, 246, 0.2);
  margin-top: 8px;
}
.ver-item:last-child .ver-line { display: none; }
.ver-body {
  flex: 1;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 16px;
  padding: 20px;
}
.ver-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.ver-num { font-size: 1.125rem; font-weight: 700; color: #f8fafc; }
.ver-tag {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}
.ver-tag.vt-stable { background: rgba(132, 204, 22, 0.15); color: #84cc16; }
.ver-tag.vt-beta { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.ver-tag.vt-lts { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }
.ver-date { font-size: 0.8125rem; color: #64748b; margin-bottom: 8px; }
.ver-desc { font-size: 0.9375rem; color: #94a3b8; line-height: 1.6; }

/* Security Banner */
.sec-banner {
  background: linear-gradient(135deg, rgba(132, 204, 22, 0.1), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(132, 204, 22, 0.2);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 60px;
}
.sec-banner-icon {
  width: 64px;
  height: 64px;
  background: rgba(132, 204, 22, 0.15);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sec-banner-icon svg { width: 32px; height: 32px; color: #84cc16; }
.sec-banner-text { flex: 1; }
.sec-banner-title { font-size: 1.25rem; font-weight: 700; color: #f8fafc; margin-bottom: 8px; }
.sec-banner-desc { font-size: 0.9375rem; color: #64748b; }

/* Article Page (zh-cn.html) */
.art-hero {
  padding: 140px 0 60px;
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}
.art-hero-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.art-hero-crumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.875rem;
  color: #64748b;
  margin-bottom: 24px;
}
.art-hero-crumb a:hover { color: #8b5cf6; }
.art-hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  color: #f8fafc;
  margin-bottom: 20px;
  line-height: 1.2;
}
.art-hero-sub {
  font-size: 1.25rem;
  color: #64748b;
  margin-bottom: 32px;
}
.kw-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.kw {
  padding: 8px 16px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 9999px;
  font-size: 0.8125rem;
  color: #8b5cf6;
}
.art-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
}
.art-body {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: #94a3b8;
}
.art-body h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 48px 0 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(139, 92, 246, 0.2);
}
.art-body h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 32px 0 16px;
}
.art-body p { margin-bottom: 20px; }
.art-body strong { color: #f8fafc; }
.art-body ul { margin-bottom: 20px; padding-left: 24px; }
.art-body li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 20px;
}
.art-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  border-radius: 50%;
}
.inline-cta {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 16px;
  padding: 24px;
  margin: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.inline-cta-body { flex: 1; }
.inline-cta-title { font-size: 1.25rem; font-weight: 700; color: #f8fafc; margin-bottom: 8px; }
.inline-cta-desc { font-size: 0.9375rem; color: #64748b; }

/* Sidebar */
.sidebar { position: sticky; top: 100px; height: fit-content; }
.sbox {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
}
.sbox-title {
  font-size: 1rem;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sbox-title svg { width: 20px; height: 20px; color: #8b5cf6; }
.sdl-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 12px;
  margin-bottom: 12px;
  transition: all 0.3s ease;
}
.sdl-btn:hover {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.1);
}
.sdl-btn.primary {
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  border-color: transparent;
  color: #fff;
}
.sdl-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4); }
.sdl-btn-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sdl-btn-icon svg { width: 20px; height: 20px; }
.sdl-btn-info { flex: 1; text-align: left; }
.sdl-btn-name { font-size: 0.9375rem; font-weight: 600; color: #f8fafc; }
.sdl-btn-ver { font-size: 0.75rem; color: #64748b; }
.stoc { font-size: 0.875rem; }
.stoc li { margin-bottom: 10px; }
.stoc a { color: #94a3b8; display: block; padding: 8px 12px; border-radius: 8px; transition: all 0.2s; }
.stoc a:hover { color: #8b5cf6; background: rgba(139, 92, 246, 0.1); }
.sstat { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sstat-item { background: rgba(15, 23, 42, 0.6); border-radius: 10px; padding: 14px; text-align: center; }
.sstat-num { font-size: 1.375rem; font-weight: 800; color: #8b5cf6; margin-bottom: 4px; }
.sstat-lbl { font-size: 0.75rem; color: #64748b; }
.side-security {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: rgba(132, 204, 22, 0.1);
  border: 1px solid rgba(132, 204, 22, 0.2);
  border-radius: 12px;
}
.side-security svg { width: 20px; height: 20px; color: #84cc16; flex-shrink: 0; margin-top: 2px; }
.side-security p { font-size: 0.8125rem; color: #84cc16; margin: 0; }

/* Footer */
.site-footer {
  background: #0a0f1d;
  border-top: 1px solid rgba(139, 92, 246, 0.1);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.125rem;
  color: #f8fafc;
}
.footer-brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer-brand-icon svg { width: 18px; height: 18px; }
.footer-security {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: #84cc16;
}
.footer-security svg { width: 18px; height: 18px; }
.footer-note {
  font-size: 0.8125rem;
  color: #475569;
  max-width: 600px;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-visual { order: -1; }
  .hero-prism { width: 300px; height: 240px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .deep-row { grid-template-columns: 1fr; gap: 40px; }
  .deep-row.flip { direction: ltr; }
  .rev-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .guide-grid { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: repeat(2, 1fr); }
  .op-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .prism-menu { display: none; }
  .prism-mob-toggle { display: flex; }
  .prism-nav-dl { display: none; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 2.25rem; }
  .sec { padding: 60px 0; }
  .sec-title { font-size: 1.875rem; }
  .feat-grid { grid-template-columns: 1fr; }
  .plat-grid { grid-template-columns: 1fr; }
  .rev-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 24px; }
  .cta-title { font-size: 1.75rem; }
  .dl-hero-title { font-size: 2rem; }
  .dl-specs { grid-template-columns: 1fr; }
  .dl-main-btns { flex-direction: column; }
  .sec-banner { flex-direction: column; text-align: center; }
  .art-hero-title { font-size: 1.875rem; }
  .inline-cta { flex-direction: column; text-align: center; }
  .req-grid { grid-template-columns: 1fr; }
}

/* Mobile Menu */
.prism-mob-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.98);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(139, 92, 246, 0.2);
  padding: 24px;
  z-index: 999;
}
.prism-mob-menu.show { display: block; }
.prism-mob-menu a {
  display: block;
  padding: 16px;
  font-size: 1rem;
  font-weight: 500;
  color: #94a3b8;
  border-radius: 12px;
  margin-bottom: 8px;
}
.prism-mob-menu a:hover { background: rgba(139, 92, 246, 0.1); color: #f8fafc; }
.prism-mob-menu a.on {
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  color: #fff;
}