/* Warm Ember / Sandstone Modern Theme */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #292524;
  background: #faf6f1;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(234,88,12,0.15); }
  50% { box-shadow: 0 0 40px rgba(234,88,12,0.3); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* ===== Navigation ===== */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,246,241,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(234,88,12,0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: #1c1917;
}
.brand-icon {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  border-radius: 8px;
  display: grid; place-items: center;
}
.brand-icon svg { width: 18px; height: 18px; }
.navlist {
  display: flex; align-items: center; gap: 6px;
}
.navlist a {
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: #57534e;
  transition: all 0.2s;
}
.navlist a:hover { color: #ea580c; background: rgba(234,88,12,0.06); }
.navlist a.on {
  background: #ea580c;
  color: #fff;
  box-shadow: 0 2px 12px rgba(234,88,12,0.25);
}
.nav-dl {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px;
  background: #1c1917;
  color: #fff;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}
.nav-dl:hover { background: #292524; transform: translateY(-1px); }
.nav-dl svg { width: 16px; height: 16px; }
.nav-toggle { display: none; width: 36px; height: 36px; border-radius: 8px; background: rgba(234,88,12,0.08); }
.nav-toggle svg { width: 20px; height: 20px; margin: auto; display: block; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-ember {
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  color: #fff;
  box-shadow: 0 4px 16px rgba(234,88,12,0.25);
}
.btn-ember:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(234,88,12,0.35); }
.btn-dark {
  background: #1c1917;
  color: #fff;
}
.btn-dark:hover { background: #292524; transform: translateY(-2px); }
.btn-outline {
  border: 2px solid #d6d3d1;
  color: #44403c;
  background: transparent;
}
.btn-outline:hover { border-color: #ea580c; color: #ea580c; }
.btn-lg { padding: 16px 36px; font-size: 16px; border-radius: 14px; }
.btn-sm { padding: 8px 18px; font-size: 13px; border-radius: 8px; }

/* ===== Sections ===== */
.sec { padding: 80px 0; }
.sec-cream { background: #fff7ed; }
.sec-dark { background: #1c1917; color: #faf6f1; }
.sec-dark .sec-title, .sec-dark .sec-sub { color: #faf6f1; }
.sec-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}
.sec-label {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px;
  background: rgba(234,88,12,0.08);
  border: 1px solid rgba(234,88,12,0.15);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: #c2410c;
  margin-bottom: 16px;
}
.sec-label-dot {
  width: 8px; height: 8px;
  background: #ea580c;
  border-radius: 50%;
  animation: pulse-glow 2s infinite;
}
.sec-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  color: #1c1917;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.sec-sub {
  font-size: 17px;
  color: #78716c;
  line-height: 1.7;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 100px 0 120px;
  overflow: hidden;
  background: linear-gradient(160deg, #faf6f1 0%, #fff7ed 40%, #ffedd5 100%);
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -80px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(234,88,12,0.12) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -60px;
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(245,158,11,0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite reverse;
}
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px;
  background: rgba(234,88,12,0.08);
  border: 1px solid rgba(234,88,12,0.12);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: #c2410c;
  margin-bottom: 24px;
}
.hero-badge svg { width: 16px; height: 16px; }
.hero-h1 {
  font-size: 56px;
  font-weight: 900;
  line-height: 1.1;
  color: #1c1917;
  margin-bottom: 20px;
  letter-spacing: -1.5px;
}
.hero-h1 .hl {
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-p {
  font-size: 19px;
  color: #57534e;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto; margin-right: auto;
}
.hero-btns {
  display: flex; gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-trust {
  display: flex; gap: 32px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-trust-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px;
  color: #78716c;
  font-weight: 500;
}
.hero-trust-item svg { width: 18px; height: 18px; color: #65a30d; }

/* ===== Stats Strip ===== */
.stats-strip { padding: 40px 0; border-bottom: 1px solid rgba(234,88,12,0.06); }
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 20px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid rgba(234,88,12,0.06);
  transition: all 0.3s;
}
.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(234,88,12,0.08);
  border-color: rgba(234,88,12,0.15);
}
.stat-num {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
  line-height: 1;
}
.stat-lbl { font-size: 14px; color: #78716c; font-weight: 500; }

/* ===== Feature Cards (Offset Grid) ===== */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feat-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  border: 1px solid rgba(234,88,12,0.06);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.feat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ea580c, #f59e0b);
  opacity: 0;
  transition: opacity 0.3s;
}
.feat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(234,88,12,0.1);
  border-color: rgba(234,88,12,0.12);
}
.feat-card:hover::before { opacity: 1; }
.feat-card:nth-child(2) { transform: translateY(20px); }
.feat-card:nth-child(5) { transform: translateY(20px); }
.feat-card:nth-child(2):hover, .feat-card:nth-child(5):hover { transform: translateY(14px); }
.feat-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(234,88,12,0.08), rgba(245,158,11,0.08));
  color: #ea580c;
}
.feat-icon svg { width: 26px; height: 26px; }
.feat-name {
  font-size: 18px;
  font-weight: 700;
  color: #1c1917;
  margin-bottom: 10px;
}
.feat-desc {
  font-size: 14px;
  color: #78716c;
  line-height: 1.7;
}

/* ===== Platform Grid ===== */
.plat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.plat-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  border: 1px solid rgba(234,88,12,0.06);
  transition: all 0.3s;
  position: relative;
}
.plat-card.featured {
  border: 2px solid rgba(234,88,12,0.2);
  box-shadow: 0 8px 24px rgba(234,88,12,0.08);
}
.plat-card.featured::after {
  content: '推荐';
  position: absolute;
  top: 12px; right: 12px;
  padding: 4px 12px;
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 100px;
}
.plat-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 20px 48px rgba(234,88,12,0.1);
}
.plat-ico {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  display: grid; place-items: center;
  margin: 0 auto 16px;
  color: #c2410c;
}
.plat-ico svg { width: 28px; height: 28px; }
.plat-name { font-size: 17px; font-weight: 700; color: #1c1917; margin-bottom: 4px; }
.plat-ver { font-size: 13px; color: #a8a29e; margin-bottom: 16px; }
.plat-desc { font-size: 13px; color: #78716c; line-height: 1.6; margin-bottom: 20px; }

/* ===== Deep Feature Rows ===== */
.deep-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.deep-row:last-child { margin-bottom: 0; }
.deep-row.rev .deep-info { order: 2; }
.deep-row.rev .deep-visual { order: 1; }
.deep-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.deep-chip.dc-ember { background: rgba(234,88,12,0.08); color: #c2410c; }
.deep-chip.dc-gold { background: rgba(245,158,11,0.08); color: #b45309; }
.deep-chip.dc-stone { background: rgba(120,113,108,0.08); color: #57534e; }
.deep-title {
  font-size: 28px;
  font-weight: 800;
  color: #1c1917;
  line-height: 1.3;
  margin-bottom: 14px;
}
.deep-desc {
  font-size: 16px;
  color: #57534e;
  line-height: 1.8;
  margin-bottom: 20px;
}
.deep-list { display: flex; flex-direction: column; gap: 10px; }
.deep-list li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 15px; color: #44403c;
}
.deep-list li svg { width: 18px; height: 18px; color: #65a30d; flex-shrink: 0; margin-top: 2px; }

/* Deep Visuals */
.deep-visual {
  background: #fff;
  border-radius: 24px;
  padding: 32px;
  border: 1px solid rgba(234,88,12,0.06);
  box-shadow: 0 8px 32px rgba(0,0,0,0.04);
}
.dv-title {
  font-size: 13px;
  font-weight: 600;
  color: #a8a29e;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.dv-bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.dv-bar-label { font-size: 13px; color: #78716c; width: 70px; flex-shrink: 0; font-weight: 500; }
.dv-bar-track {
  flex: 1;
  height: 10px;
  background: #f5f5f4;
  border-radius: 100px;
  overflow: hidden;
}
.dv-bar-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, #ea580c, #f59e0b);
  transition: width 1.5s ease;
}
.dv-bar-fill.bf-blue { background: linear-gradient(90deg, #0ea5e9, #38bdf8); }
.dv-bar-fill.bf-green { background: linear-gradient(90deg, #65a30d, #84cc16); }
.dv-bar-fill.bf-stone { background: linear-gradient(90deg, #78716c, #a8a29e); }
.dv-bar-val { font-size: 13px; font-weight: 700; color: #1c1917; width: 40px; text-align: right; }
.dv-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.dv-stat {
  background: #faf6f1;
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}
.dv-stat-num { font-size: 22px; font-weight: 800; color: #ea580c; margin-bottom: 4px; }
.dv-stat-lbl { font-size: 12px; color: #78716c; font-weight: 500; }

/* ===== Reviews (Masonry-ish) ===== */
.rev-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.rev-card {
  background: #fff;
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(234,88,12,0.06);
  transition: all 0.3s;
}
.rev-card:nth-child(2) { transform: translateY(16px); }
.rev-card:nth-child(5) { transform: translateY(16px); }
.rev-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.06); }
.rev-card:nth-child(2):hover { transform: translateY(12px); }
.rev-card:nth-child(5):hover { transform: translateY(12px); }
.rev-top {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.rev-avatar {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.rev-avatar.av-ember { background: linear-gradient(135deg, #ea580c, #f97316); }
.rev-avatar.av-gold { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.rev-avatar.av-stone { background: linear-gradient(135deg, #78716c, #a8a29e); }
.rev-avatar.av-rose { background: linear-gradient(135deg, #e11d48, #fb7185); }
.rev-avatar.av-teal { background: linear-gradient(135deg, #0d9488, #14b8a6); }
.rev-avatar.av-indigo { background: linear-gradient(135deg, #4338ca, #6366f1); }
.rev-meta { flex: 1; }
.rev-name { font-size: 15px; font-weight: 700; color: #1c1917; }
.rev-role { font-size: 12px; color: #a8a29e; }
.rev-stars { display: flex; gap: 2px; color: #f59e0b; margin-bottom: 12px; }
.rev-stars svg { width: 16px; height: 16px; }
.rev-text { font-size: 14px; color: #57534e; line-height: 1.7; }

/* ===== Comparison Table ===== */
.cmp-wrap { overflow-x: auto; }
.cmp-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  min-width: 700px;
}
.cmp-table thead th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  background: linear-gradient(135deg, #ea580c, #f59e0b);
}
.cmp-table thead th:first-child { border-radius: 12px 0 0 0; }
.cmp-table thead th:last-child { border-radius: 0 12px 0 0; }
.cmp-table tbody td {
  padding: 14px 20px;
  border-bottom: 1px solid #f5f5f4;
  color: #44403c;
}
.cmp-table tbody tr:nth-child(even) td { background: rgba(255,247,237,0.4); }
.cmp-table tbody tr:last-child td:first-child { border-radius: 0 0 0 12px; }
.cmp-table tbody tr:last-child td:last-child { border-radius: 0 0 12px 0; }
.cmp-hl { font-weight: 700; color: #1c1917; }
.cmp-table .yes { color: #65a30d; font-weight: 600; }
.cmp-table .no { color: #a8a29e; }
.cmp-table .part { color: #f59e0b; font-weight: 600; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: 16px;
  margin-bottom: 12px;
  border: 1px solid rgba(234,88,12,0.06);
  overflow: hidden;
  transition: all 0.3s;
}
.faq-item:hover { border-color: rgba(234,88,12,0.12); }
.faq-item.open { border-color: rgba(234,88,12,0.2); box-shadow: 0 8px 24px rgba(234,88,12,0.06); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: #1c1917;
  gap: 16px;
}
.faq-q::before {
  content: '';
  width: 4px; height: 24px;
  background: linear-gradient(180deg, #ea580c, #f59e0b);
  border-radius: 100px;
  flex-shrink: 0;
}
.faq-chevron {
  width: 20px; height: 20px;
  color: #a8a29e;
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item.open .faq-chevron { transform: rotate(180deg); color: #ea580c; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-a { max-height: 500px; }
.faq-a-inner {
  padding: 0 24px 20px 32px;
  font-size: 15px;
  color: #57534e;
  line-height: 1.8;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 400px; height: 400px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}
.cta-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px;
  font-weight: 600;
  opacity: 0.9;
  margin-bottom: 16px;
}
.cta-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.2;
}
.cta-desc {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto; margin-right: auto;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-actions .btn-dark { background: #1c1917; }
.cta-actions .btn-white { background: #fff; color: #ea580c; }

/* ===== Footer ===== */
.site-footer {
  background: #1c1917;
  color: #a8a29e;
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.footer-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #faf6f1;
}
.footer-brand svg { width: 24px; height: 24px; }
.footer-security {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px;
  color: #65a30d;
  font-weight: 500;
}
.footer-security svg { width: 18px; height: 18px; }
.footer-note {
  font-size: 13px;
  color: #57534e;
  max-width: 600px;
  line-height: 1.6;
}

/* ===== Download Page ===== */
.dl-hero {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(160deg, #faf6f1 0%, #fff7ed 60%, #ffedd5 100%);
  position: relative;
  overflow: hidden;
}
.dl-hero::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(234,88,12,0.1) 0%, transparent 60%);
  border-radius: 50%;
}
.dl-hero-inner { position: relative; z-index: 1; }
.dl-hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: rgba(234,88,12,0.08);
  border: 1px solid rgba(234,88,12,0.12);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: #c2410c;
  margin-bottom: 20px;
}
.dl-hero-title { font-size: 42px; font-weight: 900; color: #1c1917; margin-bottom: 12px; }
.dl-hero-sub { font-size: 17px; color: #57534e; max-width: 520px; margin: 0 auto; }

.dl-main {
  max-width: 560px;
  margin: -40px auto 40px;
  position: relative;
  z-index: 2;
}
.dl-card {
  background: #fff;
  border-radius: 24px;
  padding: 40px;
  border: 2px solid rgba(234,88,12,0.15);
  box-shadow: 0 16px 48px rgba(234,88,12,0.1);
  text-align: center;
}
.dl-card-head {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  margin-bottom: 24px;
}
.dl-card-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  display: grid; place-items: center;
  color: #c2410c;
}
.dl-card-icon svg { width: 28px; height: 28px; }
.dl-card-name { font-size: 22px; font-weight: 800; color: #1c1917; }
.dl-card-meta { font-size: 14px; color: #a8a29e; margin-bottom: 24px; }
.dl-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.dl-spec {
  background: #faf6f1;
  border-radius: 12px;
  padding: 14px;
  text-align: left;
}
.dl-spec-label { font-size: 12px; color: #a8a29e; font-weight: 500; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.dl-spec-val { font-size: 14px; font-weight: 700; color: #1c1917; }
.dl-sec-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  background: rgba(101,163,13,0.08);
  border: 1px solid rgba(101,163,13,0.15);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: #65a30d;
  margin-bottom: 20px;
}
.dl-sec-badge svg { width: 16px; height: 16px; }
.dl-card-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.op-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.op-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  border: 1px solid rgba(234,88,12,0.06);
  transition: all 0.3s;
}
.op-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.06); }
.op-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: #faf6f1;
  display: grid; place-items: center;
  margin-bottom: 16px;
  color: #c2410c;
}
.op-icon svg { width: 24px; height: 24px; }
.op-name { font-size: 18px; font-weight: 700; color: #1c1917; margin-bottom: 4px; }
.op-ver { font-size: 13px; color: #a8a29e; margin-bottom: 16px; }
.op-desc { font-size: 14px; color: #57534e; line-height: 1.7; margin-bottom: 20px; }
.op-steps { display: flex; flex-direction: column; gap: 10px; }
.op-step {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13px; color: #44403c;
}
.op-step-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: #ffedd5;
  color: #c2410c;
  font-size: 12px;
  font-weight: 700;
  display: grid; place-items: center;
  flex-shrink: 0;
}

/* Guide */
.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
.guide-col-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #1c1917;
  margin-bottom: 24px;
}
.guide-col-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.guide-col-dot.gc-ember { background: #ea580c; }
.guide-col-dot.gc-gold { background: #f59e0b; }
.guide-steps { display: flex; flex-direction: column; gap: 16px; }
.gstep {
  display: flex; gap: 16px;
  align-items: flex-start;
}
.gstep-num {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 15px;
  font-weight: 800;
  flex-shrink: 0;
  color: #fff;
}
.gstep-num.gn-ember { background: linear-gradient(135deg, #ea580c, #f97316); }
.gstep-num.gn-gold { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.gstep-body { flex: 1; }
.gstep-title { font-size: 16px; font-weight: 700; color: #1c1917; margin-bottom: 4px; }
.gstep-desc { font-size: 14px; color: #57534e; line-height: 1.6; }

/* Requirements */
.req-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.req-card {
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  border: 1px solid rgba(234,88,12,0.06);
  transition: all 0.3s;
}
.req-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.06); }
.req-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: #faf6f1;
  display: grid; place-items: center;
  margin: 0 auto 14px;
  color: #c2410c;
}
.req-icon svg { width: 24px; height: 24px; }
.req-title { font-size: 15px; font-weight: 700; color: #1c1917; margin-bottom: 6px; }
.req-val { font-size: 13px; color: #78716c; line-height: 1.5; }

/* Version logs */
.ver-list { max-width: 800px; margin: 0 auto; }
.ver-item {
  display: flex; gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid #f5f5f4;
}
.ver-dot-col { display: flex; flex-direction: column; align-items: center; }
.ver-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px currentColor;
  flex-shrink: 0;
}
.ver-dot.vd-ember { color: #ea580c; background: #ea580c; }
.ver-dot.vd-gold { color: #f59e0b; background: #f59e0b; }
.ver-dot.vd-stone { color: #78716c; background: #78716c; }
.ver-line {
  width: 2px;
  flex: 1;
  background: #f5f5f4;
  margin-top: 8px;
}
.ver-body { flex: 1; }
.ver-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.ver-num { font-size: 18px; font-weight: 800; color: #1c1917; }
.ver-tag {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.ver-tag.vt-stable { background: rgba(101,163,13,0.1); color: #65a30d; }
.ver-tag.vt-lts { background: rgba(234,88,12,0.08); color: #c2410c; }
.ver-tag.vt-beta { background: rgba(245,158,11,0.1); color: #b45309; }
.ver-date { font-size: 13px; color: #a8a29e; }
.ver-desc { font-size: 15px; color: #57534e; line-height: 1.7; }

/* Security Banner */
.sec-banner {
  background: linear-gradient(135deg, #1c1917, #292524);
  border-radius: 20px;
  padding: 40px;
  display: flex; align-items: center; gap: 24px;
  color: #faf6f1;
  max-width: 800px;
  margin: 0 auto;
}
.sec-banner-ico {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: rgba(101,163,13,0.15);
  display: grid; place-items: center;
  color: #84cc16;
  flex-shrink: 0;
}
.sec-banner-ico svg { width: 32px; height: 32px; }
.sec-banner-title { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.sec-banner-desc { font-size: 14px; color: #a8a29e; line-height: 1.6; }

/* ===== Article / zh-cn ===== */
.art-hero {
  padding: 80px 0 50px;
  background: linear-gradient(160deg, #faf6f1 0%, #fff7ed 60%, #ffedd5 100%);
  text-align: center;
}
.art-hero-crumb {
  font-size: 13px;
  color: #a8a29e;
  margin-bottom: 16px;
}
.art-hero-crumb a { color: #c2410c; font-weight: 500; }
.art-hero-title { font-size: 38px; font-weight: 900; color: #1c1917; line-height: 1.2; margin-bottom: 14px; }
.art-hero-sub { font-size: 17px; color: #57534e; max-width: 640px; margin: 0 auto; }
.kw-strip {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center;
  margin-top: 28px;
  max-width: 800px;
  margin-left: auto; margin-right: auto;
}
.kw {
  padding: 6px 14px;
  background: #fff;
  border: 1px solid rgba(234,88,12,0.1);
  border-radius: 100px;
  font-size: 13px;
  color: #78716c;
  font-weight: 500;
}

.art-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.art-body h2 {
  font-size: 26px;
  font-weight: 800;
  color: #1c1917;
  margin: 48px 0 16px;
  line-height: 1.3;
}
.art-body h2:first-child { margin-top: 0; }
.art-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: #292524;
  margin: 32px 0 12px;
}
.art-body p {
  font-size: 16px;
  color: #44403c;
  line-height: 1.8;
  margin-bottom: 16px;
}
.art-body ul, .art-body ol {
  margin-bottom: 16px;
  padding-left: 24px;
}
.art-body li {
  font-size: 15px;
  color: #44403c;
  line-height: 1.8;
  margin-bottom: 8px;
}
.art-body li::marker { color: #ea580c; }
.art-body strong { color: #1c1917; }

.inline-cta {
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  border: 1px solid rgba(234,88,12,0.1);
  border-radius: 16px;
  padding: 24px;
  margin: 32px 0;
}
.inline-cta-title { font-size: 18px; font-weight: 700; color: #1c1917; margin-bottom: 8px; }
.inline-cta-desc { font-size: 15px; color: #57534e; line-height: 1.6; margin-bottom: 16px; }

.tips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 24px 0;
}
.tip-card {
  background: #fff;
  border-radius: 14px;
  padding: 20px;
  border: 1px solid rgba(234,88,12,0.06);
}
.tip-num {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  display: grid; place-items: center;
  margin-bottom: 10px;
}
.tip-title { font-size: 15px; font-weight: 700; color: #1c1917; margin-bottom: 6px; }
.tip-desc { font-size: 14px; color: #78716c; line-height: 1.6; }

/* Sidebar */
.sidebar { position: sticky; top: 88px; }
.sbox {
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid rgba(234,88,12,0.06);
  margin-bottom: 20px;
}
.sbox-title { font-size: 16px; font-weight: 700; color: #1c1917; margin-bottom: 16px; }
.sdl-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  background: #faf6f1;
  margin-bottom: 10px;
  transition: all 0.2s;
  cursor: pointer;
  width: 100%;
  text-align: left;
  border: none;
}
.sdl-btn:hover { background: #ffedd5; transform: translateX(4px); }
.sdl-btn-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: #fff;
  display: grid; place-items: center;
  color: #c2410c;
  flex-shrink: 0;
}
.sdl-btn-icon svg { width: 18px; height: 18px; }
.sdl-btn-info { flex: 1; }
.sdl-btn-name { font-size: 14px; font-weight: 600; color: #1c1917; }
.sdl-btn-ver { font-size: 12px; color: #a8a29e; }
.sdl-btn.primary {
  background: linear-gradient(135deg, #ea580c, #f59e0b);
  color: #fff;
  justify-content: center;
  font-weight: 700;
}
.sdl-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(234,88,12,0.25); }
.sdl-btn.primary .sdl-btn-name { color: #fff; }

.stoc { display: flex; flex-direction: column; gap: 8px; }
.stoc a {
  font-size: 14px;
  color: #57534e;
  padding: 6px 0;
  border-bottom: 1px solid #f5f5f4;
  transition: color 0.2s;
}
.stoc a:hover { color: #ea580c; }
.sstat { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.sstat-item { text-align: center; }
.sstat-num { font-size: 20px; font-weight: 800; color: #ea580c; line-height: 1; }
.sstat-lbl { font-size: 12px; color: #a8a29e; margin-top: 4px; }
.side-security {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px;
  color: #65a30d;
  font-weight: 500;
}
.side-security svg { width: 16px; height: 16px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}
@media (max-width: 900px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr; }
  .feat-card:nth-child(2), .feat-card:nth-child(5) { transform: none; }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .deep-row { grid-template-columns: 1fr; gap: 32px; }
  .deep-row.rev .deep-info, .deep-row.rev .deep-visual { order: 0; }
  .rev-grid { grid-template-columns: 1fr; }
  .rev-card:nth-child(2), .rev-card:nth-child(5) { transform: none; }
  .req-grid { grid-template-columns: repeat(2, 1fr); }
  .op-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .sec-banner { flex-direction: column; text-align: center; }
}
@media (max-width: 640px) {
  .hero-h1 { font-size: 36px; }
  .sec-title { font-size: 28px; }
  .stats-row { grid-template-columns: 1fr; }
  .plat-grid { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr; }
  .navlist { display: none; position: absolute; top: 64px; left: 0; right: 0; background: rgba(250,246,241,0.98); backdrop-filter: blur(16px); flex-direction: column; padding: 16px; border-bottom: 1px solid rgba(234,88,12,0.08); gap: 4px; }
  .navlist.show { display: flex; }
  .navlist a { width: 100%; text-align: center; }
  .nav-dl { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .dl-card { padding: 28px 20px; }
  .dl-specs { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; align-items: center; }
  .hero-btns .btn { width: 100%; max-width: 280px; }
  .tips-grid { grid-template-columns: 1fr; }
  .cta-title { font-size: 24px; }
}