/* ============================================================
   WPS Office zh3 — Dark Tech Theme
   Palette: --bg #0d0f14, --surface #161b24, --card #1e2535
            --accent #7c3aed (purple), --teal #0ea5e9, --green #22c55e
   ============================================================ */
:root {
  --bg: #0d0f14;
  --surface: #161b24;
  --card: #1e2535;
  --border: #2a3347;
  --accent: #7c3aed;
  --accent-light: #a78bfa;
  --teal: #0ea5e9;
  --teal-light: #7dd3fc;
  --green: #22c55e;
  --orange: #f59e0b;
  --red: #ef4444;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,.6);
  --glow: 0 0 24px rgba(124,58,237,.25);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal-light); text-decoration: none; transition: color .2s; }
a:hover { color: var(--teal); }

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Container ── */
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ── @keyframes ── */
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes fadeUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes pulseGlow {
  0%,100% { box-shadow: 0 0 16px rgba(124,58,237,.3); }
  50% { box-shadow: 0 0 32px rgba(124,58,237,.6); }
}
@keyframes slideRight { from { width: 0; } to { width: 100%; } }
@keyframes float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-8px); } }

/* ════════════════════════════════════════
   NAV
════════════════════════════════════════ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,15,20,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 60px;
  gap: 32px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  flex-shrink: 0;
}
.nav-brand svg { flex-shrink: 0; }
.nav-brand span.tag {
  font-size: 11px;
  font-weight: 500;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-left: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin-left: auto;
}
.nav-links a {
  display: block;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all .2s;
}
.nav-links a:hover { color: var(--text); background: var(--card); }
.nav-links a.active {
  color: var(--accent-light);
  background: rgba(124,58,237,.15);
  border: 1px solid rgba(124,58,237,.3);
}
.nav-dl {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  color: #fff !important;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .2s;
  margin-left: 8px;
  flex-shrink: 0;
}
.nav-dl:hover { transform: translateY(-1px); box-shadow: var(--glow); }
.nav-ham {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  margin-left: auto;
  padding: 4px;
}
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 12px 0;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  display: block;
  padding: 12px 24px;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all .2s;
}
.nav-mobile a:hover, .nav-mobile a.active {
  color: var(--accent-light);
  border-left-color: var(--accent);
  background: rgba(124,58,237,.08);
}

/* ════════════════════════════════════════
   HERO (index)
════════════════════════════════════════ */
.hero {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(124,58,237,.15) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(14,165,233,.1) 0%, transparent 60%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(124,58,237,.15);
  border: 1px solid rgba(124,58,237,.35);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 20px;
}
.hero-eyebrow svg { flex-shrink: 0; }
.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: -.02em;
}
.hero-title .hl {
  background: linear-gradient(135deg, var(--accent-light), var(--teal-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all .25s;
  animation: pulseGlow 3s ease-in-out infinite;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(124,58,237,.5); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--card);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all .2s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-light); transform: translateY(-1px); }
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stat-num {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero-stat-num span { color: var(--accent-light); }
.hero-stat-label { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* Hero Visual Panel */
.hero-visual {
  position: relative;
  animation: float 4s ease-in-out infinite;
}
.hero-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-panel-bar {
  background: var(--surface);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.panel-dot { width: 10px; height: 10px; border-radius: 50%; }
.panel-dot.r { background: #ef4444; }
.panel-dot.y { background: #f59e0b; }
.panel-dot.g { background: #22c55e; }
.panel-tab {
  margin-left: 12px;
  font-size: 12px;
  color: var(--text-dim);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 10px;
}
.panel-tab.active { color: var(--accent-light); border-color: rgba(124,58,237,.4); background: rgba(124,58,237,.1); }
.hero-panel-body { padding: 20px; }
.panel-toolbar {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.panel-tool {
  font-size: 11px;
  padding: 4px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
}
.panel-tool.hl { background: rgba(124,58,237,.15); border-color: rgba(124,58,237,.3); color: var(--accent-light); }
.panel-doc-lines { display: flex; flex-direction: column; gap: 6px; }
.doc-line { height: 8px; background: var(--surface); border-radius: 4px; }
.doc-line.w100 { width: 100%; }
.doc-line.w80 { width: 80%; }
.doc-line.w60 { width: 60%; }
.doc-line.w90 { width: 90%; }
.doc-line.w40 { width: 40%; }
.doc-line.accent { background: linear-gradient(90deg, var(--accent), var(--teal)); opacity: .6; }
.panel-chart {
  margin-top: 16px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 72px;
}
.chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(to top, var(--accent), var(--teal));
  opacity: .7;
  transition: opacity .2s;
}
.chart-bar:hover { opacity: 1; }

/* ════════════════════════════════════════
   SECTION HEADERS
════════════════════════════════════════ */
.section { padding: 80px 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--teal);
  margin-bottom: 12px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 2px;
  background: var(--teal);
  border-radius: 1px;
}
.section-title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}
.section-header { margin-bottom: 48px; }
.section-header.centered { text-align: center; }
.section-header.centered .section-sub { margin: 0 auto; }

/* ════════════════════════════════════════
   FEATURE CARDS (index)
════════════════════════════════════════ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all .25s;
  position: relative;
  overflow: hidden;
}
.feat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--teal));
  opacity: 0;
  transition: opacity .25s;
}
.feat-card:hover { border-color: rgba(124,58,237,.4); transform: translateY(-4px); box-shadow: var(--shadow); }
.feat-card:hover::before { opacity: 1; }
.feat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(124,58,237,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feat-icon.teal { background: rgba(14,165,233,.15); }
.feat-icon.green { background: rgba(34,197,94,.15); }
.feat-icon.orange { background: rgba(245,158,11,.15); }
.feat-icon.red { background: rgba(239,68,68,.12); }
.feat-icon.pink { background: rgba(236,72,153,.12); }
.feat-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feat-desc { font-size: 13px; color: var(--text-muted); line-height: 1.65; }

/* ════════════════════════════════════════
   PLATFORM STRIP (index)
════════════════════════════════════════ */
.platform-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.plat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: all .2s;
  cursor: pointer;
}
.plat-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.plat-icon-wrap {
  width: 52px;
  height: 52px;
  margin: 0 auto 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.plat-name { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.plat-version { font-size: 12px; color: var(--text-dim); }

/* ════════════════════════════════════════
   SPEC TABLE
════════════════════════════════════════ */
.spec-table-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th {
  background: var(--surface);
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-align: left;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.spec-table td {
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table tr:hover td { background: rgba(124,58,237,.05); }
.spec-table td:first-child { color: var(--text-muted); font-weight: 500; }
.spec-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}
.spec-tag.green { background: rgba(34,197,94,.15); color: #4ade80; }
.spec-tag.teal { background: rgba(14,165,233,.15); color: #38bdf8; }

/* ════════════════════════════════════════
   REVIEWS
════════════════════════════════════════ */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .2s;
}
.review-card:hover { border-color: rgba(124,58,237,.3); }
.review-stars { display: flex; gap: 3px; margin-bottom: 12px; }
.star { color: var(--orange); font-size: 15px; }
.review-text { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 10px; }
.author-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.author-avatar.v1 { background: linear-gradient(135deg, var(--accent), var(--teal)); }
.author-avatar.v2 { background: linear-gradient(135deg, var(--teal), var(--green)); }
.author-avatar.v3 { background: linear-gradient(135deg, var(--orange), var(--red)); }
.author-avatar.v4 { background: linear-gradient(135deg, var(--green), var(--teal)); }
.author-avatar.v5 { background: linear-gradient(135deg, #ec4899, var(--accent)); }
.author-avatar.v6 { background: linear-gradient(135deg, var(--accent), #ec4899); }
.author-name { font-size: 13px; font-weight: 700; color: #fff; }
.author-role { font-size: 12px; color: var(--text-dim); }

/* ════════════════════════════════════════
   FAQ
════════════════════════════════════════ */
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item:hover { border-color: rgba(124,58,237,.3); }
.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  transition: color .2s;
}
.faq-q:hover { color: var(--accent-light); }
.faq-q svg { flex-shrink: 0; transition: transform .3s; color: var(--text-dim); }
.faq-item.open .faq-q svg { transform: rotate(180deg); color: var(--accent-light); }
.faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.faq-item.open .faq-a { display: block; }
.faq-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }

/* ════════════════════════════════════════
   DOWNLOAD PAGE
════════════════════════════════════════ */
.dl-hero {
  padding: 60px 0 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.dl-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(124,58,237,.15) 0%, transparent 70%);
  pointer-events: none;
}
.dl-hero-title { font-size: clamp(28px, 4vw, 44px); font-weight: 800; color: #fff; margin-bottom: 12px; }
.dl-hero-sub { font-size: 16px; color: var(--text-muted); }

.dl-main-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: var(--shadow-lg);
}
.dl-main-top {
  background: linear-gradient(135deg, rgba(124,58,237,.2), rgba(14,165,233,.15));
  border-bottom: 1px solid var(--border);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.dl-win-icon {
  width: 80px; height: 80px; flex-shrink: 0;
  background: rgba(14,165,233,.15);
  border: 1px solid rgba(14,165,233,.3);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
}
.dl-win-title { font-size: 26px; font-weight: 800; color: #fff; margin-bottom: 6px; }
.dl-win-sub { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.dl-win-meta { display: flex; gap: 16px; flex-wrap: wrap; }
.dl-meta-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-muted);
}
.dl-main-bottom { padding: 28px 48px; }
.dl-btn-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 20px; }
.dl-notes { display: flex; gap: 20px; flex-wrap: wrap; }
.dl-note-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-dim); }

.dl-other-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.dl-other-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: border-color .2s;
}
.dl-other-card:hover { border-color: rgba(124,58,237,.3); }
.dl-other-icon {
  width: 48px; height: 48px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.dl-other-title { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.dl-other-sub { font-size: 13px; color: var(--text-dim); margin-bottom: 20px; flex: 1; }
.btn-outline {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  width: fit-content;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent-light); background: rgba(124,58,237,.08); }

/* Sys requirements tabs */
.req-section { margin-bottom: 48px; }
.req-tabs { display: flex; gap: 4px; margin-bottom: 20px; border-bottom: 1px solid var(--border); padding-bottom: 0; }
.req-tab {
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  margin-bottom: -1px;
  transition: all .2s;
}
.req-tab:hover { color: var(--text); }
.req-tab.active { color: var(--accent-light); border-bottom-color: var(--accent); }
.req-panel { display: none; }
.req-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.req-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.req-block-title { font-size: 13px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 12px; }
.req-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.req-row:last-child { border-bottom: none; }
.req-row span:first-child { color: var(--text-muted); }
.req-row span:last-child { color: var(--text); font-weight: 500; }

/* Install steps */
.install-steps { display: flex; flex-direction: column; gap: 0; position: relative; }
.install-steps::before {
  content: '';
  position: absolute;
  left: 20px; top: 20px; bottom: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--teal));
  opacity: .4;
}
.install-step {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  position: relative;
}
.step-num {
  width: 40px; height: 40px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800; color: #fff;
  z-index: 1;
  box-shadow: 0 0 12px rgba(124,58,237,.4);
}
.step-content { padding-top: 8px; }
.step-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.step-desc { font-size: 13px; color: var(--text-muted); }

/* ════════════════════════════════════════
   ZH-CN PAGE
════════════════════════════════════════ */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 48px;
  align-items: start;
  padding: 60px 0;
}
.article-main { min-width: 0; }
.article-toc {
  position: sticky;
  top: 80px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.toc-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-dim); margin-bottom: 12px;
  display: flex; align-items: center; gap: 6px;
}
.toc-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.toc-list a {
  display: block;
  padding: 5px 10px;
  font-size: 13px;
  color: var(--text-muted);
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all .2s;
}
.toc-list a:hover, .toc-list a.active {
  color: var(--accent-light);
  background: rgba(124,58,237,.08);
  border-left-color: var(--accent);
}

.article-section { margin-bottom: 56px; scroll-margin-top: 80px; }
.article-section h2 {
  font-size: 24px; font-weight: 800; color: #fff;
  margin-bottom: 16px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.article-section h2 .h-num {
  font-size: 13px; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.article-section p { font-size: 15px; color: var(--text-muted); line-height: 1.85; margin-bottom: 14px; }
.article-section h3 { font-size: 17px; font-weight: 700; color: #fff; margin: 20px 0 10px; }
.article-section ul { list-style: none; display: flex; flex-direction: column; gap: 6px; padding-left: 4px; margin-bottom: 14px; }
.article-section ul li { font-size: 14px; color: var(--text-muted); display: flex; align-items: flex-start; gap: 8px; line-height: 1.65; }
.article-section ul li::before {
  content: '';
  display: inline-block; flex-shrink: 0;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-top: 8px;
}

.compare-table-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 20px 0;
}
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th {
  padding: 12px 16px; text-align: left;
  background: var(--surface);
  font-size: 13px; font-weight: 700;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.compare-table th.hl-col { color: var(--accent-light); background: rgba(124,58,237,.1); }
.compare-table td {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td.hl-col { background: rgba(124,58,237,.05); }
.compare-table td.feature-name { font-weight: 600; color: var(--text); }
.chk { color: var(--green); font-size: 16px; }
.cross { color: var(--red); font-size: 16px; }
.partial { color: var(--orange); font-size: 16px; }

.version-log {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.version-row {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}
.version-row:last-child { border-bottom: none; }
.version-badge {
  flex-shrink: 0;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(124,58,237,.15);
  border: 1px solid rgba(124,58,237,.3);
  color: var(--accent-light);
  white-space: nowrap;
}
.version-info-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 3px; }
.version-info-desc { font-size: 13px; color: var(--text-muted); }

.tips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0;
}
.tip-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  gap: 12px;
}
.tip-icon { flex-shrink: 0; color: var(--accent-light); margin-top: 2px; }
.tip-label { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.tip-text { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

.cta-banner {
  background: linear-gradient(135deg, rgba(124,58,237,.25), rgba(14,165,233,.2));
  border: 1px solid rgba(124,58,237,.35);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  margin-top: 16px;
}
.cta-title { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.cta-sub { font-size: 15px; color: var(--text-muted); margin-bottom: 28px; }
.btn-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  color: #fff;
  font-size: 16px; font-weight: 700;
  border-radius: var(--radius);
  transition: all .25s;
  box-shadow: 0 0 32px rgba(124,58,237,.35);
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 0 48px rgba(124,58,237,.5); color: #fff; }

/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
}
.footer-disclaimer {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.8;
  max-width: 700px;
  margin: 0 auto;
}
.footer-disclaimer strong { color: var(--text-muted); }
.footer-divider { width: 48px; height: 2px; background: var(--border); margin: 16px auto; border-radius: 1px; }

/* ════════════════════════════════════════
   UTILITIES
════════════════════════════════════════ */
.divider { height: 1px; background: var(--border); margin: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, var(--accent-light), var(--teal-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .platform-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr 1fr; }
  .faq-cols { grid-template-columns: 1fr; gap: 0; }
  .dl-main-top { flex-direction: column; align-items: flex-start; gap: 24px; padding: 28px 24px; }
  .dl-main-bottom { padding: 20px 24px; }
  .dl-other-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { display: none; }
  .tips-grid { grid-template-columns: 1fr; }
  .req-panel.active { grid-template-columns: 1fr; }
  .compare-table-wrap { overflow-x: auto; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .features-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .dl-other-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-dl { display: none; }
  .nav-ham { display: flex; }
  .section { padding: 56px 0; }
  .hero { padding: 48px 0 40px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-stats { gap: 20px; }
}