/* ============================================
   Violet Tech Theme - WPS Office Landing Site
   Design: Deep Violet + Electric Blue + Warm Orange
   ============================================ */

/* CSS 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, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6; color: #1f2937; background: #ffffff;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* ============================================
   Animations
   ============================================ */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(124, 58, 237, 0.3); }
  50% { box-shadow: 0 0 40px rgba(124, 58, 237, 0.6); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Layout Containers
   ============================================ */
.wrap {
  width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px;
}
.sec { padding: 80px 0; }
.sec-violet { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 50%, #5b21b6 100%); color: #fff; }
.sec-dark { background: #0f0a1a; color: #fff; }
.sec-surface { background: #f8f7fc; }
.sec-white { background: #ffffff; }
.sec-ink { background: #1a1625; color: #fff; }

/* ============================================
   Navigation
   ============================================ */
.vt-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px); border-bottom: 1px solid rgba(124, 58, 237, 0.1);
}
.vt-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.vt-brand { display: flex; align-items: center; gap: 10px; }
.vt-brand-mark {
  width: 36px; height: 36px; background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 18px;
}
.vt-brand-text { font-weight: 700; font-size: 20px; color: #1f2937; }
.vt-brand-sub { font-size: 12px; color: #7c3aed; font-weight: 500; }
.vt-links { display: flex; align-items: center; gap: 6px; }
.vt-link {
  padding: 8px 16px; border-radius: 20px; font-size: 14px; font-weight: 500;
  color: #4b5563; transition: all 0.3s ease;
}
.vt-link:hover { color: #7c3aed; background: rgba(124, 58, 237, 0.08); }
.vt-link.on { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); color: #fff; }
.vt-cta {
  padding: 10px 20px; background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  color: #fff; border-radius: 24px; font-size: 14px; font-weight: 600;
  transition: all 0.3s ease; box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}
.vt-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(249, 115, 22, 0.45); }
.vt-burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.vt-burger span { width: 24px; height: 2px; background: #1f2937; border-radius: 2px; }
.vt-mob { display: none; position: absolute; top: 64px; left: 0; right: 0;
  background: #fff; padding: 16px; border-bottom: 1px solid rgba(124, 58, 237, 0.1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}
.vt-mob.show { display: block; }
.vt-mob .vt-link { display: block; margin: 4px 0; }

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 28px; font-size: 15px; font-weight: 600;
  transition: all 0.3s ease; cursor: pointer;
}
.btn-violet {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); color: #fff;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
}
.btn-violet:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124, 58, 237, 0.45); }
.btn-orange {
  background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); color: #fff;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.35);
}
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45); }
.btn-blue {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); color: #fff;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}
.btn-blue:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(59, 130, 246, 0.45); }
.btn-outline {
  border: 2px solid #7c3aed; color: #7c3aed; background: transparent;
}
.btn-outline:hover { background: #7c3aed; color: #fff; }
.btn-outline-w {
  border: 2px solid rgba(255, 255, 255, 0.6); color: #fff; background: transparent;
}
.btn-outline-w:hover { background: rgba(255, 255, 255, 0.15); }
.btn-white {
  background: #fff; color: #7c3aed; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15); }
.btn-ghost { color: #6b7280; }
.btn-ghost:hover { color: #7c3aed; }
.btn-lg { padding: 16px 32px; font-size: 16px; border-radius: 32px; }
.btn-sm { padding: 10px 20px; font-size: 13px; border-radius: 20px; }

/* ============================================
   Section Headers
   ============================================ */
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px;
  border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 16px;
}
.sec-chip-violet { background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.sec-chip-orange { background: rgba(249, 115, 22, 0.1); color: #f97316; }
.sec-chip-blue { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
.sec-chip-white { background: rgba(255, 255, 255, 0.15); color: #fff; }
.sec-chip-dot { width: 8px; height: 8px; border-radius: 50%; }
.sec-chip-dot.violet { background: #7c3aed; }
.sec-chip-dot.orange { background: #f97316; }
.sec-chip-dot.blue { background: #3b82f6; }
.sec-chip-dot.white { background: #fff; }
.sec-title { font-size: 36px; font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.sec-title.light { color: #fff; }
.sec-sub { font-size: 18px; color: #6b7280; max-width: 600px; margin: 0 auto; }
.sec-sub.light { color: rgba(255, 255, 255, 0.8); }
.hl { color: #7c3aed; }
.hl2 { color: #f97316; }
.hl3 { color: #3b82f6; }

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh; padding: 140px 0 80px;
  background: linear-gradient(135deg, #0f0a1a 0%, #1a0f2e 50%, #2d1b4e 100%);
  position: relative; overflow: hidden; color: #fff;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; bottom: -30%; left: -10%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-text { max-width: 560px; }
.hero-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px;
  background: rgba(124, 58, 237, 0.2); border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 20px; font-size: 13px; font-weight: 600; color: #a78bfa; margin-bottom: 24px;
}
.hero-chip-dot { width: 8px; height: 8px; background: #a78bfa; border-radius: 50%; animation: pulseGlow 2s infinite; }
.hero-h1 { font-size: 52px; font-weight: 800; line-height: 1.1; margin-bottom: 20px; }
.hero-hl { background: linear-gradient(135deg, #f97316 0%, #fb923c 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-p { font-size: 18px; color: rgba(255, 255, 255, 0.75); margin-bottom: 32px; line-height: 1.7; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust { display: flex; gap: 24px; flex-wrap: wrap; }
.hero-trust-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.7); }
.hero-trust-icon { width: 20px; height: 20px; color: #a78bfa; }

/* Hero Visual - Dashboard Mockup */
.hero-vis { position: relative; }
.hv-panel {
  background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 20px;
  padding: 24px; animation: floatY 6s ease-in-out infinite;
}
.hv-topbar { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.hv-dots { display: flex; gap: 6px; }
.hv-dot { width: 12px; height: 12px; border-radius: 50%; }
.hv-dot.r { background: #ef4444; }
.hv-dot.y { background: #f59e0b; }
.hv-dot.g { background: #22c55e; }
.hv-title { font-size: 13px; color: rgba(255, 255, 255, 0.5); margin-left: 8px; }
.hv-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px; }
.hv-card {
  background: rgba(255, 255, 255, 0.06); border-radius: 12px; padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.hv-card-label { font-size: 12px; color: rgba(255, 255, 255, 0.5); margin-bottom: 4px; }
.hv-card-val { font-size: 24px; font-weight: 700; }
.hv-card-val.cv-violet { color: #a78bfa; }
.hv-card-val.cv-blue { color: #60a5fa; }
.hv-card-val.cv-orange { color: #fb923c; }
.hv-card-val.cv-teal { color: #2dd4bf; }
.hv-bars { display: flex; flex-direction: column; gap: 10px; }
.hv-bar-row { display: flex; align-items: center; gap: 12px; }
.hv-bar-label { width: 60px; font-size: 12px; color: rgba(255, 255, 255, 0.5); }
.hv-bar-track { flex: 1; height: 8px; background: rgba(255, 255, 255, 0.1); border-radius: 4px; overflow: hidden; }
.hv-bar-fill { height: 100%; border-radius: 4px; }
.hv-bar-fill.bf-violet { background: linear-gradient(90deg, #7c3aed, #a78bfa); width: 85%; }
.hv-bar-fill.bf-blue { background: linear-gradient(90deg, #3b82f6, #60a5fa); width: 72%; }
.hv-bar-fill.bf-orange { background: linear-gradient(90deg, #f97316, #fb923c); width: 68%; }
.hv-bar-fill.bf-teal { background: linear-gradient(90deg, #14b8a6, #2dd4bf); width: 90%; }
.hv-bar-val { width: 32px; font-size: 12px; color: rgba(255, 255, 255, 0.7); text-align: right; }

/* ============================================
   Stats Band
   ============================================ */
.stats-band { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); padding: 40px 0; }
.stats-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; text-align: center; }
.stat-item { padding: 16px; }
.stat-num { font-size: 36px; font-weight: 800; margin-bottom: 8px; }
.stat-num.sn-violet { color: #c4b5fd; }
.stat-num.sn-orange { color: #fed7aa; }
.stat-num.sn-blue { color: #bfdbfe; }
.stat-num.sn-teal { color: #99f6e4; }
.stat-num.sn-white { color: #fff; }
.stat-lbl { font-size: 14px; color: rgba(255, 255, 255, 0.8); }

/* ============================================
   Features Grid
   ============================================ */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feat-card {
  background: #fff; border-radius: 16px; padding: 28px; border: 1px solid #e5e7eb;
  transition: all 0.3s ease; position: relative; overflow: hidden;
}
.feat-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(124, 58, 237, 0.12); border-color: rgba(124, 58, 237, 0.2); }
.feat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, #7c3aed, #a78bfa); opacity: 0; transition: opacity 0.3s;
}
.feat-card:hover::before { opacity: 1; }
.feat-card.fc-orange::before { background: linear-gradient(90deg, #f97316, #fb923c); }
.feat-card.fc-blue::before { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.feat-card.fc-teal::before { background: linear-gradient(90deg, #14b8a6, #2dd4bf); }
.feat-card.fc-rose::before { background: linear-gradient(90deg, #e11d48, #fb7185); }
.feat-card.fc-amber::before { background: linear-gradient(90deg, #d97706, #fbbf24); }
.feat-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feat-icon.fi-violet { background: linear-gradient(135deg, rgba(124, 58, 237, 0.15) 0%, rgba(124, 58, 237, 0.05) 100%); color: #7c3aed; }
.feat-icon.fi-orange { background: linear-gradient(135deg, rgba(249, 115, 22, 0.15) 0%, rgba(249, 115, 22, 0.05) 100%); color: #f97316; }
.feat-icon.fi-blue { background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(59, 130, 246, 0.05) 100%); color: #3b82f6; }
.feat-icon.fi-teal { background: linear-gradient(135deg, rgba(20, 184, 166, 0.15) 0%, rgba(20, 184, 166, 0.05) 100%); color: #14b8a6; }
.feat-icon.fi-rose { background: linear-gradient(135deg, rgba(225, 29, 72, 0.15) 0%, rgba(225, 29, 72, 0.05) 100%); color: #e11d48; }
.feat-icon.fi-amber { background: linear-gradient(135deg, rgba(217, 119, 6, 0.15) 0%, rgba(217, 119, 6, 0.05) 100%); color: #d97706; }
.feat-name { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.feat-desc { font-size: 15px; color: #6b7280; line-height: 1.6; }

/* ============================================
   Deep Rows (Feature Details)
   ============================================ */
.deep-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 0; }
.deep-row.flip { direction: rtl; }
.deep-row.flip > * { direction: ltr; }
.deep-info { max-width: 520px; }
.deep-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px;
  border-radius: 16px; font-size: 12px; font-weight: 600; margin-bottom: 16px;
}
.deep-chip.dc-violet { background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.deep-chip.dc-orange { background: rgba(249, 115, 22, 0.1); color: #f97316; }
.deep-chip.dc-blue { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
.deep-chip.dc-teal { background: rgba(20, 184, 166, 0.1); color: #14b8a6; }
.deep-chip-dot { width: 6px; height: 6px; border-radius: 50%; }
.deep-chip-dot.violet { background: #7c3aed; }
.deep-chip-dot.orange { background: #f97316; }
.deep-chip-dot.blue { background: #3b82f6; }
.deep-chip-dot.teal { background: #14b8a6; }
.deep-h3 { font-size: 32px; font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.deep-desc { font-size: 16px; color: #6b7280; margin-bottom: 24px; line-height: 1.7; }
.deep-list { display: flex; flex-direction: column; gap: 12px; }
.deep-list-item { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: #4b5563; }
.dl-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.dl-dot.violet { background: #7c3aed; }
.dl-dot.orange { background: #f97316; }
.dl-dot.blue { background: #3b82f6; }
.deep-vis { background: rgba(124, 58, 237, 0.05); border-radius: 20px; padding: 32px; border: 1px solid rgba(124, 58, 237, 0.1); }
.dv-title { font-size: 14px; font-weight: 600; color: #7c3aed; margin-bottom: 20px; }
.dv-bar { margin-bottom: 16px; }
.dv-bar-header { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 13px; }
.dv-bar-label { color: #6b7280; }
.dv-bar-val { color: #7c3aed; font-weight: 600; }
.dv-bar-track { height: 8px; background: #e5e7eb; border-radius: 4px; overflow: hidden; }
.dv-bar-fill { height: 100%; border-radius: 4px; }
.dv-bar-fill.dbf-violet { background: linear-gradient(90deg, #7c3aed, #a78bfa); width: 92%; }
.dv-bar-fill.dbf-orange { background: linear-gradient(90deg, #f97316, #fb923c); width: 88%; }
.dv-bar-fill.dbf-blue { background: linear-gradient(90deg, #3b82f6, #60a5fa); width: 85%; }
.dv-bar-fill.dbf-teal { background: linear-gradient(90deg, #14b8a6, #2dd4bf); width: 90%; }
.dv-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
.dv-stat { text-align: center; padding: 16px; background: #fff; border-radius: 12px; }
.dv-stat-num { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
.dv-stat-num.csv-violet { color: #7c3aed; }
.dv-stat-num.csv-orange { color: #f97316; }
.dv-stat-num.csv-blue { color: #3b82f6; }
.dv-stat-lbl { font-size: 12px; color: #6b7280; }

/* ============================================
   Platforms Grid
   ============================================ */
.plat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.plat-card {
  background: #fff; border-radius: 16px; padding: 28px; border: 1px solid #e5e7eb;
  text-align: center; transition: all 0.3s ease;
}
.plat-card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1); }
.plat-card.featured { border-color: rgba(249, 115, 22, 0.3); box-shadow: 0 8px 24px rgba(249, 115, 22, 0.15); }
.plat-badge { display: inline-block; padding: 4px 12px; background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); color: #fff; font-size: 12px; font-weight: 600; border-radius: 12px; margin-bottom: 16px; }
.plat-icon { width: 64px; height: 64px; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; border-radius: 16px; }
.plat-icon.pi-win { background: linear-gradient(135deg, #0078d4 0%, #005a9e 100%); color: #fff; }
.plat-icon.pi-mac { background: linear-gradient(135deg, #555 0%, #333 100%); color: #fff; }
.plat-icon.pi-ios { background: linear-gradient(135deg, #007aff 0%, #0051d5 100%); color: #fff; }
.plat-icon.pi-and { background: linear-gradient(135deg, #3ddc84 0%, #2baf6a 100%); color: #fff; }
.plat-name { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.plat-ver { font-size: 13px; color: #6b7280; margin-bottom: 8px; }
.plat-req { font-size: 12px; color: #9ca3af; margin-bottom: 20px; }
.plat-btn { width: 100%; }

/* ============================================
   Reviews Grid
   ============================================ */
.rev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.rev-card { background: #fff; border-radius: 16px; padding: 24px; border: 1px solid #e5e7eb; transition: all 0.3s ease; }
.rev-card:hover { box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08); }
.rev-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.rev-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; color: #fff; }
.rev-avatar.av-violet { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); }
.rev-avatar.av-orange { background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); }
.rev-avatar.av-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }
.rev-avatar.av-teal { background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%); }
.rev-avatar.av-rose { background: linear-gradient(135deg, #e11d48 0%, #be123c 100%); }
.rev-avatar.av-amber { background: linear-gradient(135deg, #d97706 0%, #b45309 100%); }
.rev-meta { flex: 1; }
.rev-name { font-weight: 600; font-size: 15px; }
.rev-role { font-size: 13px; color: #9ca3af; }
.rev-stars { display: flex; gap: 2px; color: #fbbf24; margin-bottom: 12px; }
.rev-text { font-size: 15px; color: #4b5563; line-height: 1.6; }

/* ============================================
   Security Section
   ============================================ */
.sec-items-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 48px; }
.sec-item-card { background: rgba(255, 255, 255, 0.05); border-radius: 16px; padding: 24px; border: 1px solid rgba(255, 255, 255, 0.1); text-align: center; }
.sec-item-icon { width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 14px; display: flex; align-items: center; justify-content: center; }
.sec-item-icon.sii-violet { background: rgba(124, 58, 237, 0.2); color: #a78bfa; }
.sec-item-icon.sii-orange { background: rgba(249, 115, 22, 0.2); color: #fb923c; }
.sec-item-icon.sii-blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.sec-item-icon.sii-teal { background: rgba(20, 184, 166, 0.2); color: #2dd4bf; }
.sec-item-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: #fff; }
.sec-item-desc { font-size: 14px; color: rgba(255, 255, 255, 0.6); }

/* Comparison Table */
.cmp-wrap { background: rgba(255, 255, 255, 0.03); border-radius: 16px; border: 1px solid rgba(255, 255, 255, 0.1); overflow: hidden; }
.cmp-table { width: 100%; border-collapse: collapse; }
.cmp-table th, .cmp-table td { padding: 16px 20px; text-align: left; font-size: 14px; }
.cmp-table th { background: rgba(124, 58, 237, 0.2); font-weight: 600; color: #fff; }
.cmp-table td { border-top: 1px solid rgba(255, 255, 255, 0.05); color: rgba(255, 255, 255, 0.8); }
.cmp-table tr:hover td { background: rgba(255, 255, 255, 0.03); }
.cmp-hl { color: #a78bfa; font-weight: 600; }
.cmp-table .yes { color: #22c55e; font-weight: 600; }
.cmp-table .no { color: #ef4444; }
.cmp-table .part { color: #fbbf24; }

/* ============================================
   Versions Section
   ============================================ */
.ver-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ver-card {
  background: #fff; border-radius: 20px; padding: 32px; border: 2px solid #e5e7eb;
  transition: all 0.3s ease; position: relative;
}
.ver-card:hover { border-color: rgba(124, 58, 237, 0.3); box-shadow: 0 16px 40px rgba(124, 58, 237, 0.1); }
.ver-card.popular { border-color: rgba(249, 115, 22, 0.4); box-shadow: 0 12px 32px rgba(249, 115, 22, 0.15); }
.ver-pop-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  padding: 6px 16px; background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  color: #fff; font-size: 12px; font-weight: 700; border-radius: 12px;
}
.ver-name { font-size: 22px; font-weight: 700; margin-bottom: 8px; text-align: center; }
.ver-desc { font-size: 14px; color: #6b7280; text-align: center; margin-bottom: 24px; }
.ver-price { text-align: center; margin-bottom: 24px; }
.ver-price-main { font-size: 42px; font-weight: 800; }
.ver-price-main.coral { color: #f97316; }
.ver-price-cy { font-size: 16px; color: #6b7280; }
.ver-price-period { font-size: 14px; color: #9ca3af; }
.ver-price-note { font-size: 12px; color: #9ca3af; margin-top: 4px; }
.ver-sep { height: 1px; background: #e5e7eb; margin: 24px 0; }
.ver-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.ver-check { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: #4b5563; }
.ver-check svg { width: 18px; height: 18px; color: #22c55e; flex-shrink: 0; margin-top: 2px; }
.ver-cta { width: 100%; }

/* ============================================
   FAQ Section
   ============================================ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid #e5e7eb; }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0; cursor: pointer; font-size: 17px; font-weight: 600; color: #1f2937;
  transition: color 0.3s;
}
.faq-q:hover { color: #7c3aed; }
.faq-chevron { width: 20px; height: 20px; color: #9ca3af; transition: transform 0.3s; }
.faq-item.open .faq-chevron { transform: rotate(180deg); color: #7c3aed; }
.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-bottom: 20px; font-size: 15px; color: #6b7280; line-height: 1.7; }

/* ============================================
   CTA Banner
   ============================================ */
.cta-banner { background: linear-gradient(135deg, #1a0f2e 0%, #2d1b4e 100%); padding: 80px 0; }
.cta-inner { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px;
  background: rgba(124, 58, 237, 0.2); border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 20px; font-size: 13px; font-weight: 600; color: #a78bfa; margin-bottom: 24px;
}
.cta-h2 { font-size: 40px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.cta-p { font-size: 18px; color: rgba(255, 255, 255, 0.7); margin-bottom: 32px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ============================================
   Download Page Specific
   ============================================ */
.dl-hero { padding: 120px 0 60px; background: linear-gradient(135deg, #0f0a1a 0%, #1a0f2e 100%); color: #fff; }
.dl-hero-inner { text-align: center; max-width: 720px; margin: 0 auto; }
.dl-hero-tag { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px;
  background: rgba(249, 115, 22, 0.2); border: 1px solid rgba(249, 115, 22, 0.4);
  border-radius: 20px; font-size: 13px; font-weight: 600; color: #fb923c; margin-bottom: 24px;
}
.dl-hero-h1 { font-size: 44px; font-weight: 700; margin-bottom: 16px; }
.dl-hero-sub { font-size: 18px; color: rgba(255, 255, 255, 0.7); margin-bottom: 40px; }
.dl-main-wrap { max-width: 600px; margin: 0 auto 60px; }
.dl-main-card { background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15); border-radius: 24px; overflow: hidden;
}
.dl-main-top { height: 6px; background: linear-gradient(90deg, #7c3aed, #f97316, #3b82f6); }
.dl-main-head { display: flex; align-items: center; gap: 20px; padding: 32px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.dl-main-icon { width: 72px; height: 72px; background: linear-gradient(135deg, #0078d4 0%, #005a9e 100%); border-radius: 16px; display: flex; align-items: center; justify-content: center; }
.dl-main-info { flex: 1; }
.dl-main-name { font-size: 26px; font-weight: 700; margin-bottom: 6px; }
.dl-main-meta { font-size: 14px; color: rgba(255, 255, 255, 0.6); }
.dl-main-body { padding: 32px; }
.dl-specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 24px; }
.dl-spec { text-align: center; }
.dl-spec-label { font-size: 12px; color: rgba(255, 255, 255, 0.5); margin-bottom: 4px; }
.dl-spec-val { font-size: 16px; font-weight: 600; color: #fff; }
.dl-sec-badge { display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px; background: rgba(34, 197, 94, 0.15); border-radius: 10px;
  font-size: 13px; color: #4ade80; margin-bottom: 24px;
}
.dl-main-btns { display: flex; gap: 12px; }
.dl-main-btns .btn { flex: 1; }

/* Other Platforms Grid */
.op-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.op-card { background: #fff; border-radius: 16px; padding: 28px; border: 1px solid #e5e7eb; }
.op-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.op-icon.op-mac { background: linear-gradient(135deg, #555 0%, #333 100%); color: #fff; }
.op-icon.op-ios { background: linear-gradient(135deg, #007aff 0%, #0051d5 100%); color: #fff; }
.op-icon.op-and { background: linear-gradient(135deg, #3ddc84 0%, #2baf6a 100%); color: #fff; }
.op-name { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.op-ver { font-size: 13px; color: #6b7280; margin-bottom: 4px; }
.op-req { font-size: 12px; color: #9ca3af; margin-bottom: 16px; }
.op-steps { margin: 16px 0; padding: 16px; background: #f9fafb; border-radius: 10px; }
.op-step { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: #4b5563; margin-bottom: 8px; }
.op-step:last-child { margin-bottom: 0; }
.op-step-n { width: 20px; height: 20px; border-radius: 50%; background: #e5e7eb; color: #6b7280; font-size: 11px; font-weight: 600; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.op-btn { width: 100%; margin-top: 12px; }

/* Guide Section */
.guide-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; margin-top: 40px; }
.guide-col-title { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; margin-bottom: 24px; }
.guide-col-dot { width: 12px; height: 12px; border-radius: 50%; }
.guide-col-dot.gcd-violet { background: #7c3aed; }
.guide-col-dot.gcd-blue { background: #3b82f6; }
.guide-steps { display: flex; flex-direction: column; gap: 16px; }
.gstep { display: flex; gap: 16px; }
.gstep-num { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; color: #fff; flex-shrink: 0; }
.gstep-num.gsn-violet { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); }
.gstep-num.gsn-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }
.gstep-body { flex: 1; }
.gstep-title { font-weight: 600; font-size: 16px; margin-bottom: 4px; }
.gstep-desc { font-size: 14px; color: #6b7280; }

/* Requirements Grid */
.req-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
.req-card { background: #fff; border-radius: 16px; padding: 24px; border: 1px solid #e5e7eb; text-align: center; }
.req-icon { width: 48px; height: 48px; margin: 0 auto 16px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.req-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.req-val { font-size: 14px; color: #6b7280; }

/* Version Timeline */
.ver-list { display: flex; flex-direction: column; gap: 20px; margin-top: 40px; }
.ver-item { display: flex; gap: 20px; }
.ver-dot-col { display: flex; flex-direction: column; align-items: center; }
.ver-dot { width: 16px; height: 16px; border-radius: 50%; }
.ver-dot.vd-violet { background: #7c3aed; box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.2); }
.ver-dot.vd-blue { background: #3b82f6; box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2); }
.ver-dot.vd-orange { background: #f97316; box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.2); }
.ver-dot.vd-teal { background: #14b8a6; box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.2); }
.ver-line { width: 2px; flex: 1; background: #e5e7eb; margin-top: 8px; }
.ver-body { flex: 1; background: #fff; border-radius: 12px; padding: 20px; border: 1px solid #e5e7eb; margin-bottom: 20px; }
.ver-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.ver-num { font-size: 18px; font-weight: 700; }
.ver-tag { padding: 4px 10px; border-radius: 6px; font-size: 11px; font-weight: 600; }
.ver-tag.vt-stable { background: rgba(34, 197, 94, 0.15); color: #16a34a; }
.ver-tag.vt-lts { background: rgba(59, 130, 246, 0.15); color: #2563eb; }
.ver-tag.vt-beta { background: rgba(249, 115, 22, 0.15); color: #ea580c; }
.ver-date { font-size: 13px; color: #9ca3af; margin-left: auto; }
.ver-desc { font-size: 14px; color: #6b7280; }

/* Security Banner */
.sec-banner { background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%); border-radius: 16px; padding: 32px; border: 1px solid rgba(124, 58, 237, 0.2); margin: 40px 0; }
.sec-banner-icon { width: 56px; height: 56px; border-radius: 14px; background: rgba(124, 58, 237, 0.15); color: #7c3aed; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.sec-banner-title { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.sec-banner-desc { font-size: 15px; color: #6b7280; }

/* ============================================
   Article Page (zh-cn.html) Specific
   ============================================ */
.art-hero { padding: 120px 0 60px; background: linear-gradient(135deg, #0f0a1a 0%, #1a0f2e 100%); color: #fff; }
.art-hero-inner { max-width: 900px; margin: 0 auto; }
.art-hero-crumb { font-size: 14px; color: rgba(255, 255, 255, 0.5); margin-bottom: 20px; }
.art-hero-crumb a { color: #a78bfa; }
.art-hero-crumb a:hover { text-decoration: underline; }
.art-hero-h1 { font-size: 42px; font-weight: 700; margin-bottom: 16px; line-height: 1.2; }
.art-hero-sub { font-size: 18px; color: rgba(255, 255, 255, 0.7); margin-bottom: 32px; }

/* Keyword Strip */
.kw-strip { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.kw { padding: 6px 14px; background: rgba(124, 58, 237, 0.15); border: 1px solid rgba(124, 58, 237, 0.3); border-radius: 20px; font-size: 13px; color: #a78bfa; }

/* Article Layout */
.art-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; padding: 60px 0; }
.art-body { font-size: 16px; line-height: 1.8; color: #374151; }
.art-body h2 { font-size: 28px; font-weight: 700; color: #1f2937; margin: 48px 0 20px; }
.art-body h3 { font-size: 22px; font-weight: 600; color: #1f2937; margin: 32px 0 16px; }
.art-body p { margin-bottom: 20px; }
.art-body ul, .art-body ol { margin-bottom: 20px; padding-left: 24px; }
.art-body li { margin-bottom: 8px; }
.art-body strong { color: #7c3aed; }

/* Inline CTA */
.inline-cta { background: linear-gradient(135deg, rgba(124, 58, 237, 0.08) 0%, rgba(124, 58, 237, 0.03) 100%); border-radius: 16px; padding: 24px; border: 1px solid rgba(124, 58, 237, 0.15); margin: 32px 0; }
.inline-cta-body { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.inline-cta-title { font-size: 20px; font-weight: 700; color: #1f2937; margin-bottom: 6px; }
.inline-cta-desc { font-size: 14px; color: #6b7280; }

/* Tips Grid */
.tips-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 24px 0; }
.tip-card { background: #f9fafb; border-radius: 12px; padding: 20px; border: 1px solid #e5e7eb; }
.tip-num { width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); color: #fff; font-size: 14px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.tip-title { font-weight: 600; font-size: 16px; margin-bottom: 8px; color: #1f2937; }
.tip-desc { font-size: 14px; color: #6b7280; line-height: 1.5; }

/* Article Comparison Table */
.art-cmp-wrap { margin: 24px 0; overflow-x: auto; }
.art-cmp-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.art-cmp-table th, .art-cmp-table td { padding: 14px 16px; text-align: left; border: 1px solid #e5e7eb; }
.art-cmp-table th { background: #f9fafb; font-weight: 600; color: #1f2937; }
.art-cmp-table td { color: #4b5563; }
.art-cmp-hl { color: #7c3aed; font-weight: 600; }

/* Art Bottom CTA */
.art-bottom-cta { background: linear-gradient(135deg, #0f0a1a 0%, #1a0f2e 100%); border-radius: 20px; padding: 48px; text-align: center; margin: 48px 0; color: #fff; }
.art-bottom-cta h3 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.art-bottom-cta p { font-size: 16px; color: rgba(255, 255, 255, 0.7); margin-bottom: 24px; }

/* Sidebar */
.sidebar { position: sticky; top: 100px; height: fit-content; }
.sbox { background: #fff; border-radius: 16px; padding: 24px; border: 1px solid #e5e7eb; margin-bottom: 20px; }
.sbox-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; color: #1f2937; }

/* Sidebar Download Buttons */
.sdl-btn { display: flex; align-items: center; gap: 12px; padding: 14px; border-radius: 12px; border: 1px solid #e5e7eb; margin-bottom: 10px; transition: all 0.3s; }
.sdl-btn:hover { border-color: rgba(124, 58, 237, 0.3); background: rgba(124, 58, 237, 0.03); }
.sdl-btn.primary { background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%); color: #fff; border-color: transparent; }
.sdl-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(124, 58, 237, 0.3); }
.sdl-btn-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.sdl-btn.primary .sdl-btn-icon { background: rgba(255, 255, 255, 0.2); color: #fff; }
.sdl-btn-info { flex: 1; }
.sdl-btn-name { font-weight: 600; font-size: 14px; }
.sdl-btn-ver { font-size: 12px; color: #9ca3af; }

/* Sidebar TOC */
.stoc { display: flex; flex-direction: column; gap: 8px; }
.stoc-item { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #6b7280; padding: 6px 0; transition: color 0.3s; }
.stoc-item:hover { color: #7c3aed; }
.stoc-dot { width: 6px; height: 6px; border-radius: 50%; background: #d1d5db; }
.stoc-item:hover .stoc-dot { background: #7c3aed; }

/* Sidebar Stats */
.sstat { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.sstat-item { text-align: center; padding: 16px; background: #f9fafb; border-radius: 10px; }
.sstat-num { font-size: 22px; font-weight: 700; color: #7c3aed; margin-bottom: 4px; }
.sstat-lbl { font-size: 12px; color: #6b7280; }

/* Side Security */
.side-security { display: flex; align-items: center; gap: 12px; padding: 16px; background: rgba(34, 197, 94, 0.08); border-radius: 10px; }
.side-security svg { width: 24px; height: 24px; color: #22c55e; flex-shrink: 0; }
.side-security-text { font-size: 13px; color: #4b5563; }

/* ============================================
   Footer
   ============================================ */
.site-footer { background: #0a0612; padding: 40px 0; border-top: 1px solid rgba(124, 58, 237, 0.2); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand-mark { width: 32px; height: 32px; background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%); border-radius: 6px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 14px; }
.footer-brand-text { font-weight: 600; color: rgba(255, 255, 255, 0.8); }
.footer-right { text-align: right; }
.footer-security { font-size: 13px; color: #22c55e; margin-bottom: 4px; display: flex; align-items: center; gap: 6px; justify-content: flex-end; }
.footer-note { font-size: 12px; color: rgba(255, 255, 255, 0.4); }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-vis { order: -1; max-width: 500px; margin: 0 auto; }
  .deep-row { grid-template-columns: 1fr; gap: 40px; }
  .deep-row.flip { direction: ltr; }
  .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .stats-row { grid-template-columns: repeat(3, 1fr); }
  .sec-items-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .vt-links { display: none; }
  .vt-burger { display: flex; }
  .hero { padding: 120px 0 60px; }
  .hero-h1 { font-size: 36px; }
  .sec-title { font-size: 28px; }
  .feat-grid { grid-template-columns: 1fr; }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .rev-grid { grid-template-columns: 1fr; }
  .ver-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .sec-items-grid { grid-template-columns: 1fr; }
  .op-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: 1fr; }
  .dl-specs { grid-template-columns: repeat(2, 1fr); }
  .dl-main-btns { flex-direction: column; }
  .cta-h2 { font-size: 28px; }
  .art-hero-h1 { font-size: 28px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-right { text-align: center; }
  .footer-security { justify-content: center; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  .sec { padding: 60px 0; }
  .hero-h1 { font-size: 28px; }
  .hero-p { font-size: 16px; }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn { width: 100%; }
  .sec-title { font-size: 24px; }
  .plat-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr; }
  .dl-specs { grid-template-columns: 1fr; }
  .cta-btns { flex-direction: column; }
  .inline-cta-body { flex-direction: column; text-align: center; }
}