/* ============================================================
   WPS2 — Deep Ocean Productivity Theme
   Base: #050d1a (deep navy) | Accent: #00c9a7 (teal) | Secondary: #3b82f6 (blue)
   ============================================================ */

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

:root {
  --bg: #050d1a;
  --bg2: #0a1628;
  --bg3: #0f1f38;
  --card: #112240;
  --card2: #162d4e;
  --border: rgba(0,201,167,0.15);
  --teal: #00c9a7;
  --teal2: #00e5be;
  --blue: #3b82f6;
  --blue2: #60a5fa;
  --text: #e8f4f8;
  --text2: #a8c5d8;
  --text3: #6b8fa8;
  --white: #ffffff;
  --red: #ff4757;
  --gold: #fbbf24;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-teal: 0 0 24px rgba(0,201,167,0.25);
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif; font-size: 16px; line-height: 1.7; }
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--teal2); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--teal); border-radius: 3px; }

/* ── Spin keyframe ── */
@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 pulse { 0%,100% { opacity:1; } 50% { opacity:0.5; } }
@keyframes glowPulse { 0%,100% { box-shadow: var(--shadow-teal); } 50% { box-shadow: 0 0 40px rgba(0,201,167,0.5); } }

/* ══════════════════════════════════════════
   TOPBAR / NAVIGATION
   ══════════════════════════════════════════ */
.topbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(5,13,26,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; height: 64px; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--white); font-size: 1.2rem; font-weight: 700; }
.brand-mark {
  width: 36px; height: 36px; background: linear-gradient(135deg, var(--teal), var(--blue));
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
}
.brand-mark svg { width: 22px; height: 22px; }
.topbar-inner nav { margin-left: auto; }
.navlist { display: flex; gap: 4px; list-style: none; }
.navlist a {
  display: block; padding: 8px 16px; border-radius: 8px;
  color: var(--text2); font-size: 0.9rem; font-weight: 500;
  transition: var(--transition);
}
.navlist a:hover { color: var(--teal); background: rgba(0,201,167,0.08); }
.navlist a.active {
  color: var(--teal); background: rgba(0,201,167,0.12);
  border-bottom: 2px solid var(--teal);
}

/* ══════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px; font-size: 0.95rem; font-weight: 600;
  border: none; transition: var(--transition); white-space: nowrap;
}
.btn-teal {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--bg); animation: glowPulse 3s ease-in-out infinite;
}
.btn-teal:hover { filter: brightness(1.1); transform: translateY(-2px); }
.btn-outline {
  background: transparent; color: var(--teal);
  border: 1.5px solid var(--teal);
}
.btn-outline:hover { background: rgba(0,201,167,0.1); transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,0.07); color: var(--text); border: 1px solid rgba(255,255,255,0.12); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-blue { background: var(--blue); color: var(--white); }
.btn-blue:hover { background: var(--blue2); transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 12px; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: 8px; }
.btn:disabled { opacity: 0.7; cursor: wait; }

/* ══════════════════════════════════════════
   SECTIONS
   ══════════════════════════════════════════ */
.sec { padding: 80px 0; }
.sec-alt { background: var(--bg2); }
.sec-alt2 { background: var(--bg3); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-eyebrow {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  background: rgba(0,201,167,0.12); color: var(--teal); font-size: 0.8rem;
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 14px;
}
.sec-title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--white); line-height: 1.25; margin-bottom: 14px; }
.sec-sub { font-size: 1.05rem; color: var(--text2); max-width: 600px; margin: 0 auto; }

/* ══════════════════════════════════════════
   HERO
   ══════════════════════════════════════════ */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(0,201,167,0.08) 0%, transparent 70%),
              radial-gradient(ellipse 60% 50% at 20% 80%, rgba(59,130,246,0.08) 0%, transparent 70%),
              var(--bg);
  padding: 100px 0 80px;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300c9a7' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,201,167,0.12); border: 1px solid rgba(0,201,167,0.3);
  color: var(--teal); padding: 6px 14px; border-radius: 20px;
  font-size: 0.82rem; font-weight: 600; margin-bottom: 20px;
}
.hero-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); animation: pulse 1.5s ease-in-out infinite; }
.hero-title { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 900; color: var(--white); line-height: 1.15; margin-bottom: 20px; }
.hero-title span { color: var(--teal); }
.hero-desc { font-size: 1.1rem; color: var(--text2); margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-stat-num { font-size: 1.6rem; font-weight: 800; color: var(--teal); }
.hero-stat-lbl { font-size: 0.82rem; color: var(--text3); margin-top: 2px; }

/* Hero Visual */
.hero-visual { position: relative; justify-self: end; }
.hero-screen {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow), var(--shadow-teal);
}
.hero-screen-bar {
  background: var(--card2); padding: 12px 16px;
  display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #ffbd2e; }
.dot-g { background: #28ca41; }
.hero-screen-body { padding: 20px; }
.mock-toolbar {
  display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap;
}
.mock-tb-btn {
  padding: 5px 10px; background: var(--bg3); border-radius: 5px;
  font-size: 0.72rem; color: var(--text3); border: 1px solid var(--border);
}
.mock-tb-btn.active { background: rgba(0,201,167,0.15); color: var(--teal); border-color: var(--teal); }
.mock-ruler {
  height: 20px; background: var(--bg3); border-radius: 4px; margin-bottom: 12px;
  position: relative; overflow: hidden;
}
.mock-ruler::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(90deg, transparent 0, transparent 18px, rgba(0,201,167,0.1) 18px, rgba(0,201,167,0.1) 19px);
}
.mock-doc { }
.mock-line {
  height: 10px; background: var(--bg3); border-radius: 3px; margin-bottom: 8px;
}
.mock-line.title-line { height: 16px; width: 70%; background: rgba(0,201,167,0.2); }
.mock-line.short { width: 55%; }
.mock-line.med { width: 80%; }
.mock-line.full { width: 100%; }
.mock-highlight { height: 10px; width: 40%; background: rgba(59,130,246,0.25); border-radius: 3px; margin-bottom: 8px; }
.hero-float-badge {
  position: absolute; bottom: -16px; right: -16px;
  background: var(--card2); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 18px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow);
}
.hero-float-ico { width: 36px; height: 36px; background: rgba(0,201,167,0.15); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.hero-float-num { font-size: 1.1rem; font-weight: 800; color: var(--white); }
.hero-float-lbl { font-size: 0.75rem; color: var(--text3); }

/* ══════════════════════════════════════════
   TICKER / MARQUEE
   ══════════════════════════════════════════ */
.ticker { background: rgba(0,201,167,0.06); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 14px 0; overflow: hidden; }
.ticker-inner { display: flex; gap: 48px; white-space: nowrap; justify-content: center; flex-wrap: wrap; }
@keyframes tickerScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.ticker-item { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: var(--text2); font-weight: 500; }
.ticker-sep { color: var(--teal); opacity: 0.4; }

/* ══════════════════════════════════════════
   FEATURE CARDS
   ══════════════════════════════════════════ */
.feat-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: var(--transition);
}
.feat-card:hover { border-color: var(--teal); transform: translateY(-4px); box-shadow: var(--shadow-teal); }
.feat-ico {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(0,201,167,0.1); display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feat-ico svg { width: 28px; height: 28px; }
.feat-title { font-size: 1.05rem; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.feat-desc { font-size: 0.9rem; color: var(--text2); line-height: 1.7; }

/* ══════════════════════════════════════════
   SHOWCASE SPLIT ROWS
   ══════════════════════════════════════════ */
.showcase-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  padding: 48px 0; border-bottom: 1px solid var(--border);
}
.showcase-row:last-child { border-bottom: none; }
.showcase-row.rev { direction: rtl; }
.showcase-row.rev > * { direction: ltr; }
.showcase-label {
  display: inline-block; padding: 3px 12px; border-radius: 20px;
  background: rgba(59,130,246,0.12); color: var(--blue2); font-size: 0.78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px;
}
.showcase-title { font-size: 1.5rem; font-weight: 800; color: var(--white); margin-bottom: 14px; line-height: 1.3; }
.showcase-desc { color: var(--text2); margin-bottom: 20px; line-height: 1.8; }
.showcase-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.showcase-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--text2); font-size: 0.93rem; }
.showcase-list li::before {
  content: ''; flex-shrink: 0; width: 18px; height: 18px; margin-top: 2px;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 18 18' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='9' cy='9' r='9' fill='rgba(0,201,167,0.15)'/%3E%3Cpath d='M5.5 9l2.5 2.5 4-4' stroke='%2300c9a7' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
}
.showcase-visual {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow); min-height: 220px;
  display: flex; flex-direction: column; gap: 12px;
}
.mock-sheet-row { display: grid; grid-template-columns: 80px repeat(4, 1fr); gap: 6px; }
.mock-cell {
  height: 28px; background: var(--bg3); border-radius: 4px; border: 1px solid rgba(255,255,255,0.04);
}
.mock-cell.hdr { background: rgba(0,201,167,0.15); }
.mock-cell.hi { background: rgba(59,130,246,0.2); }
.mock-chart {
  flex: 1; background: var(--bg3); border-radius: 8px; border: 1px solid var(--border);
  display: flex; align-items: flex-end; gap: 6px; padding: 12px;
}
.mock-bar { flex: 1; border-radius: 4px 4px 0 0; min-height: 20px; }
.mock-slide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; flex: 1; }
.mock-slide {
  background: var(--bg3); border-radius: 8px; border: 1px solid var(--border);
  padding: 10px; display: flex; flex-direction: column; gap: 5px;
}
.mock-slide-title { height: 10px; width: 60%; background: rgba(0,201,167,0.2); border-radius: 3px; }
.mock-slide-body { height: 8px; background: rgba(255,255,255,0.06); border-radius: 3px; }
.mock-slide-body.short { width: 75%; }
.mock-cloud-ico { text-align: center; padding: 20px 0; }
.mock-cloud-ico svg { width: 64px; height: 64px; opacity: 0.6; }
.mock-progress { height: 6px; background: var(--bg3); border-radius: 3px; overflow: hidden; margin-top: 6px; }
.mock-progress-fill { height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--teal), var(--blue)); }
.mock-sync-list { display: flex; flex-direction: column; gap: 8px; }
.mock-sync-item { display: flex; align-items: center; gap: 10px; background: var(--bg3); padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border); }
.mock-sync-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.mock-sync-line { flex: 1; height: 8px; background: rgba(255,255,255,0.08); border-radius: 3px; }
.mock-sync-badge { font-size: 0.7rem; padding: 2px 7px; border-radius: 10px; font-weight: 600; }

/* ══════════════════════════════════════════
   PLATFORM CARDS
   ══════════════════════════════════════════ */
.plat-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: var(--transition);
}
.plat-card:hover { border-color: var(--teal); transform: translateY(-3px); }
.plat-card.featured { border-color: var(--teal); background: linear-gradient(135deg, rgba(0,201,167,0.08), var(--card)); }
.plat-ico { width: 56px; height: 56px; margin: 0 auto 14px; }
.plat-ico svg { width: 56px; height: 56px; }
.plat-name { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.plat-ver { font-size: 0.82rem; color: var(--text3); margin-bottom: 16px; }
.plat-badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 0.72rem; font-weight: 700; margin-bottom: 14px; }
.plat-badge.new { background: rgba(0,201,167,0.15); color: var(--teal); }
.plat-badge.stable { background: rgba(59,130,246,0.15); color: var(--blue2); }

/* ══════════════════════════════════════════
   REVIEW / TESTIMONIALS
   ══════════════════════════════════════════ */
.review-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: var(--transition);
}
.review-card:hover { border-color: rgba(0,201,167,0.3); }
.stars { color: var(--gold); font-size: 0.9rem; margin-bottom: 12px; }
.review-text { color: var(--text2); font-size: 0.92rem; line-height: 1.7; margin-bottom: 16px; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem; flex-shrink: 0;
}
.review-name { font-size: 0.88rem; font-weight: 600; color: var(--white); }
.review-role { font-size: 0.78rem; color: var(--text3); }

/* ══════════════════════════════════════════
   COMPARISON TABLE
   ══════════════════════════════════════════ */
.cmp-wrap { overflow-x: auto; }
.cmp-table { width: 100%; border-collapse: collapse; }
.cmp-table th, .cmp-table td { padding: 14px 20px; text-align: center; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.cmp-table th { background: var(--card2); color: var(--white); font-weight: 700; }
.cmp-table th:first-child, .cmp-table td:first-child { text-align: left; color: var(--text2); }
.cmp-table tr:hover td { background: rgba(0,201,167,0.03); }
.cmp-highlight { background: rgba(0,201,167,0.06) !important; }
.cmp-highlight th { background: rgba(0,201,167,0.15) !important; color: var(--teal) !important; }
.tick { color: var(--teal); font-size: 1.1rem; }
.cross { color: var(--text3); font-size: 1.1rem; }

/* ══════════════════════════════════════════
   FAQ
   ══════════════════════════════════════════ */
.faq-list { display: flex; flex-direction: column; gap: 10px; max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.faq-item.open { border-color: var(--teal); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 22px; cursor: pointer; font-weight: 600; color: var(--white);
  font-size: 0.95rem; gap: 12px; user-select: none;
}
.faq-q:hover { color: var(--teal); }
.faq-chevron { flex-shrink: 0; width: 20px; height: 20px; transition: transform var(--transition); }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 22px 18px; color: var(--text2); font-size: 0.92rem; line-height: 1.75; }
.faq-item.open .faq-a { display: block; }

/* ══════════════════════════════════════════
   CTA BANNER
   ══════════════════════════════════════════ */
.cta-banner {
  background: linear-gradient(135deg, rgba(0,201,167,0.12), rgba(59,130,246,0.12));
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 56px 40px; text-align: center; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,201,167,0.15), transparent);
  top: -80px; right: -80px; pointer-events: none;
}
.cta-title { font-size: 1.9rem; font-weight: 800; color: var(--white); margin-bottom: 12px; }
.cta-sub { color: var(--text2); margin-bottom: 28px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ══════════════════════════════════════════
   DOWNLOAD PAGE SPECIFIC
   ══════════════════════════════════════════ */
.dl-hero { background: var(--bg2); padding: 64px 0; border-bottom: 1px solid var(--border); }
.dl-hero-inner { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; justify-content: center; text-align: center; }
.dl-hero-ico {
  width: 80px; height: 80px; background: linear-gradient(135deg, var(--teal), var(--blue));
  border-radius: 20px; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.dl-hero-ico svg { width: 48px; height: 48px; }
.dl-hero-title { font-size: 2rem; font-weight: 800; color: var(--white); margin-bottom: 6px; }
.dl-hero-sub { color: var(--text2); }
.dl-meta { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 14px; justify-content: center; }
.dl-meta-tag {
  display: flex; align-items: center; gap: 6px;
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: 5px 14px; font-size: 0.82rem; color: var(--text2);
}
.dl-meta-tag svg { width: 14px; height: 14px; }

.win-box {
  background: linear-gradient(135deg, rgba(0,201,167,0.06), rgba(59,130,246,0.06));
  border: 1.5px solid var(--teal); border-radius: var(--radius-lg); padding: 36px;
  margin-bottom: 32px;
}
.win-box-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.win-box-ico {
  width: 60px; height: 60px; background: rgba(0,201,167,0.12); border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
}
.win-box-ico svg { width: 36px; height: 36px; }
.win-box-title { font-size: 1.3rem; font-weight: 800; color: var(--white); margin-bottom: 3px; }
.win-box-sub { font-size: 0.88rem; color: var(--text3); }
.win-box-specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 24px; }
.spec-item { background: var(--card2); border-radius: 8px; padding: 12px 14px; }
.spec-label { font-size: 0.75rem; color: var(--text3); margin-bottom: 4px; }
.spec-val { font-size: 0.9rem; font-weight: 600; color: var(--white); }

.other-plats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.other-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: var(--transition);
}
.other-card:hover { border-color: rgba(0,201,167,0.3); transform: translateY(-2px); }
.other-card-ico { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.other-card-ico svg { width: 32px; height: 32px; }
.other-card-name { font-size: 1rem; font-weight: 700; color: var(--white); }
.other-card-sub { font-size: 0.85rem; color: var(--text3); margin-bottom: 16px; }

.guide-section { }
.guide-step { display: flex; gap: 20px; margin-bottom: 24px; align-items: flex-start; }
.step-num {
  width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.9rem; color: var(--bg);
}
.step-content { flex: 1; }
.step-title { font-size: 0.95rem; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.step-desc { font-size: 0.88rem; color: var(--text2); line-height: 1.6; }

.req-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.req-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.req-card-title { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--white); margin-bottom: 10px; font-size: 0.95rem; }
.req-card-title svg { width: 18px; height: 18px; }
.req-list { list-style: none; display: flex; flex-direction: column; gap: 7px; }
.req-list li { font-size: 0.87rem; color: var(--text2); padding-left: 16px; position: relative; }
.req-list li::before { content: '▸'; position: absolute; left: 0; color: var(--teal); font-size: 0.7rem; top: 2px; }

.ver-timeline { display: flex; flex-direction: column; gap: 0; max-width: 680px; margin-left: auto; margin-right: auto; }
.ver-item { display: flex; gap: 20px; position: relative; padding-bottom: 28px; }
.ver-item:last-child { padding-bottom: 0; }
.ver-item::before { content: ''; position: absolute; left: 15px; top: 36px; bottom: 0; width: 2px; background: var(--border); }
.ver-item:last-child::before { display: none; }
.ver-dot { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--teal); background: var(--bg); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ver-dot-inner { width: 10px; height: 10px; border-radius: 50%; background: var(--teal); }
.ver-body { flex: 1; }
.ver-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.ver-num { font-weight: 700; color: var(--white); font-size: 0.95rem; }
.ver-date { font-size: 0.78rem; color: var(--text3); }
.ver-tag { display: inline-block; padding: 2px 10px; border-radius: 10px; font-size: 0.72rem; font-weight: 700; }
.ver-tag.latest { background: rgba(0,201,167,0.15); color: var(--teal); }
.ver-tag.stable { background: rgba(59,130,246,0.12); color: var(--blue2); }
.ver-notes { list-style: none; display: flex; flex-direction: column; gap: 5px; }
.ver-notes li { font-size: 0.87rem; color: var(--text2); padding-left: 14px; position: relative; }
.ver-notes li::before { content: '—'; position: absolute; left: 0; color: var(--text3); }

/* ══════════════════════════════════════════
   ZH-CN / SEO ARTICLE PAGE
   ══════════════════════════════════════════ */
.article-hero {
  background: var(--bg2); border-bottom: 1px solid var(--border); padding: 64px 0;
  text-align: center;
}
.article-hero-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; color: var(--white); margin-bottom: 14px; }
.article-hero-title span { color: var(--teal); }
.article-hero-sub { color: var(--text2); font-size: 1.05rem; max-width: 600px; margin: 0 auto 24px; }
.kw-cloud { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 24px; }
.kw-pill {
  background: rgba(0,201,167,0.08); border: 1px solid rgba(0,201,167,0.2);
  color: var(--text2); padding: 5px 14px; border-radius: 20px; font-size: 0.82rem;
  transition: var(--transition);
}
.kw-pill:hover { background: rgba(0,201,167,0.15); color: var(--teal); }

.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; }
.article-body { }
.article-section { margin-bottom: 48px; }
.article-section h2 { font-size: 1.3rem; font-weight: 800; color: var(--white); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.article-section h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin: 16px 0 8px; }
.article-section p { color: var(--text2); font-size: 0.95rem; line-height: 1.85; margin-bottom: 14px; }
.article-section ul, .article-section ol { padding-left: 20px; color: var(--text2); font-size: 0.93rem; line-height: 1.85; margin-bottom: 14px; }
.article-section li { margin-bottom: 6px; }

.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 16px; }
.sidebar-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.sidebar-title { font-size: 0.9rem; font-weight: 700; color: var(--white); margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.toc { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.toc a { font-size: 0.85rem; color: var(--text2); padding: 4px 10px; border-radius: 6px; display: block; transition: var(--transition); }
.toc a:hover { color: var(--teal); background: rgba(0,201,167,0.06); }
.sidebar-stat { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.sidebar-stat:last-child { border-bottom: none; }
.sidebar-stat-label { font-size: 0.82rem; color: var(--text3); }
.sidebar-stat-val { font-size: 0.88rem; font-weight: 600; color: var(--teal); }

.article-cta-box {
  background: linear-gradient(135deg, rgba(0,201,167,0.1), rgba(59,130,246,0.1));
  border: 1.5px solid var(--teal); border-radius: var(--radius-lg);
  padding: 40px; text-align: center; margin: 40px 0;
}
.article-cta-title { font-size: 1.4rem; font-weight: 800; color: var(--white); margin-bottom: 10px; }
.article-cta-sub { color: var(--text2); margin-bottom: 24px; }

/* Tips grid */
.tips-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0; }
.tip-card { background: var(--bg3); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.tip-card-title { font-size: 0.88rem; font-weight: 700; color: var(--teal); margin-bottom: 6px; }
.tip-card-desc { font-size: 0.82rem; color: var(--text2); line-height: 1.6; }

/* ══════════════════════════════════════════
   SECURITY / FOOTER
   ══════════════════════════════════════════ */
.security-bar {
  background: rgba(0,201,167,0.06); border-top: 1px solid var(--border);
  padding: 14px 0; text-align: center;
}
.security-bar-inner { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 0.84rem; color: var(--text2); }
.security-bar-inner svg { width: 16px; height: 16px; color: var(--teal); flex-shrink: 0; }
.site-footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 32px 24px; text-align: center; }
.footer-disclaimer { font-size: 0.8rem; color: var(--text3); line-height: 1.8; max-width: 760px; margin: 0 auto; }
.footer-disclaimer a { color: var(--text3); }

/* ══════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .showcase-row { grid-template-columns: 1fr; }
  .showcase-row.rev { direction: ltr; }
  .win-box-specs { grid-template-columns: 1fr 1fr; }
  .other-plats { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .topbar-inner { gap: 16px; }
  .navlist a { padding: 6px 10px; }
  .hero-stats { gap: 20px; }
  .feat-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 36px 24px; }
  .sec { padding: 56px 0; }
}
@media (max-width: 480px) {
  .plat-grid { grid-template-columns: 1fr 1fr; }
  .win-box-specs { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .cta-actions { flex-direction: column; align-items: center; }
}