/* Site 1 — Enterprise blue stacked layout */
:root {
  --navy: #0b3d91;
  --navy-deep: #072a66;
  --gold: #c9a227;
  --gold-soft: #f5e6b8;
  --ink: #1a2332;
  --muted: #5a6577;
  --line: #d8dee8;
  --bg: #f4f7fb;
  --white: #ffffff;
  --radius: 4px;
  --max: 1120px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--gold); }
.wrap { width: min(100% - 32px, var(--max)); margin: 0 auto; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Header */
.site-header {
  background: var(--navy-deep);
  color: var(--white);
  border-bottom: 3px solid var(--gold);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.brand svg { width: 32px; height: 32px; flex-shrink: 0; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: rgba(255,255,255,0.82);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.nav a:hover { color: var(--white); background: rgba(255,255,255,0.08); }
.nav a.active {
  color: var(--navy-deep);
  background: var(--gold);
  font-weight: 600;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 55%, #0a4a7a 100%);
  color: var(--white);
  padding: 64px 0 72px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.hero-kicker {
  display: inline-block;
  color: var(--gold-soft);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.55rem);
  line-height: 1.25;
  margin-bottom: 16px;
  font-weight: 700;
}
.hero-lead {
  color: rgba(255,255,255,0.88);
  font-size: 1.05rem;
  max-width: 36em;
  margin-bottom: 28px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--gold); color: var(--navy-deep); }
.btn-primary:hover { background: #dbb534; }
.btn-primary:disabled { opacity: 0.7; cursor: wait; }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.45);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.hero-visual {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 28px;
}
.hero-visual svg { width: 100%; height: auto; }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--white); }
.section-title {
  font-size: 1.65rem;
  color: var(--navy-deep);
  margin-bottom: 10px;
}
.section-desc {
  color: var(--muted);
  max-width: 48em;
  margin-bottom: 28px;
}
.section-body {
  color: #2c3645;
  margin-bottom: 20px;
  max-width: 52em;
}
.section-body + .section-body { margin-top: -8px; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy);
  padding: 22px 18px;
}
.feature svg { width: 36px; height: 36px; color: var(--navy); margin-bottom: 14px; }
.feature h3 { font-size: 1.05rem; margin-bottom: 8px; color: var(--navy-deep); }
.feature p { color: var(--muted); font-size: 0.92rem; }

.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.scene {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 20px;
}
.scene-icon {
  width: 56px;
  height: 56px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}
.scene-icon svg { width: 28px; height: 28px; }
.scene h3 { font-size: 1.05rem; margin-bottom: 6px; }
.scene p { color: var(--muted); font-size: 0.93rem; }

.cta-band {
  background: linear-gradient(90deg, var(--navy-deep), var(--navy));
  color: var(--white);
  padding: 48px 0;
  text-align: center;
}
.cta-band h2 { font-size: 1.55rem; margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,0.85); margin-bottom: 22px; max-width: 40em; margin-left: auto; margin-right: auto; }

/* Download page */
.page-banner {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 40px 0 32px;
}
.page-banner h1 { font-size: 2rem; color: var(--navy-deep); margin-bottom: 10px; }
.page-banner p { color: var(--muted); max-width: 48em; }
.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.platform {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 28px 24px;
}
.platform-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.platform-head svg { width: 40px; height: 40px; color: var(--navy); }
.platform h2, .platform h3 { font-size: 1.25rem; color: var(--navy-deep); }
.platform p { color: var(--muted); margin-bottom: 18px; font-size: 0.95rem; }
.platform .btn { width: 100%; }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-deep); }
.btn-navy:disabled { opacity: 0.7; cursor: wait; }

.steps { counter-reset: step; display: grid; gap: 16px; }
.step {
  counter-increment: step;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 20px 20px 20px 72px;
  position: relative;
}
.step::before {
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 36px;
  height: 36px;
  background: var(--gold);
  color: var(--navy-deep);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.step h3 { margin-bottom: 6px; color: var(--navy-deep); }
.step p { color: var(--muted); font-size: 0.95rem; }

/* Article */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 36px;
  align-items: start;
}
.article {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 36px 40px;
}
.article h1 { font-size: 1.9rem; color: var(--navy-deep); margin-bottom: 16px; }
.article h2 {
  font-size: 1.3rem;
  color: var(--navy);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gold-soft);
}
.article h3 {
  font-size: 1.08rem;
  color: var(--navy-deep);
  margin: 20px 0 10px;
}
.article p { margin-bottom: 14px; color: #2c3645; }
.article ul { margin: 0 0 16px 1.2em; color: #2c3645; }
.article li { margin-bottom: 6px; }
.article-cta {
  margin-top: 28px;
  padding: 22px;
  background: var(--bg);
  border-left: 4px solid var(--gold);
}
.article-cta p { margin-bottom: 14px; }
.aside {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 22px;
  position: sticky;
  top: 16px;
}
.aside h2 { font-size: 1rem; color: var(--navy-deep); margin-bottom: 12px; }
.aside ol { padding-left: 1.2em; color: var(--muted); font-size: 0.92rem; }
.aside li { margin-bottom: 8px; }
.aside a { color: var(--navy); }

/* Footer */
.site-footer {
  background: #0e1726;
  color: rgba(255,255,255,0.78);
  padding: 36px 0 28px;
  margin-top: 0;
  font-size: 0.9rem;
}
.footer-inner { display: grid; gap: 12px; }
.footer-safe {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #d4e4ff;
}
.footer-safe svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; color: var(--gold); }
.footer-copy { color: rgba(255,255,255,0.55); line-height: 1.65; }

/* Download spotlight */
.download-spotlight {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--white);
  padding: 48px 0;
  border-bottom: 3px solid var(--gold);
}
.download-spotlight h2 {
  font-size: 1.55rem;
  margin-bottom: 12px;
  color: var(--white);
}
.download-spotlight .spotlight-lead {
  color: rgba(255,255,255,0.88);
  max-width: 48em;
  margin-bottom: 18px;
}
.download-spotlight .spotlight-note {
  color: rgba(255,255,255,0.72);
  font-size: 0.93rem;
  max-width: 48em;
  margin-top: 16px;
}
.download-spotlight .btn-primary { min-width: 260px; }

/* Entry / platform mini cards on index */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.entry-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 22px 18px;
  border-top: 3px solid var(--gold);
}
.entry-card h3 {
  font-size: 1.05rem;
  color: var(--navy-deep);
  margin-bottom: 10px;
}
.entry-card p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 16px;
}
.entry-card .btn { width: 100%; font-size: 0.9rem; padding: 10px 14px; }

/* Deep feature blocks */
.deep-list { display: grid; gap: 20px; }
.deep-item {
  background: var(--bg);
  border: 1px solid var(--line);
  border-left: 4px solid var(--navy);
  padding: 22px 24px;
}
.section-alt .deep-item { background: var(--white); }
.deep-item h3 {
  font-size: 1.15rem;
  color: var(--navy-deep);
  margin-bottom: 10px;
}
.deep-item p {
  color: #2c3645;
  font-size: 0.96rem;
  margin-bottom: 10px;
}
.deep-item p:last-child { margin-bottom: 0; }

/* Stats / proof */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
.stat-box {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 22px 16px;
  text-align: center;
}
.section-alt .stat-box { background: var(--bg); }
.stat-box .stat-num {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
  line-height: 1.2;
}
.stat-box .stat-label {
  color: var(--muted);
  font-size: 0.9rem;
}
.proof-list {
  list-style: none;
  display: grid;
  gap: 12px;
}
.proof-list li {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 16px 18px;
  color: #2c3645;
  font-size: 0.96rem;
  border-left: 3px solid var(--gold);
}
.section-alt .proof-list li { background: var(--bg); }

/* Compare table */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--white);
  margin-bottom: 20px;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  min-width: 640px;
}
.compare-table th,
.compare-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  color: #2c3645;
  vertical-align: top;
}
.compare-table th {
  background: var(--navy-deep);
  color: var(--white);
  font-weight: 600;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tbody tr:nth-child(even) { background: #f0f4fa; }
.compare-table .hl { color: var(--navy); font-weight: 600; }

/* Reviews */
.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.review {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 24px 22px;
}
.section-alt .review { background: var(--bg); }
.review-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.review-meta strong {
  color: var(--navy-deep);
  font-size: 1.02rem;
}
.review-meta span {
  color: var(--muted);
  font-size: 0.88rem;
}
.review p {
  color: #2c3645;
  font-size: 0.95rem;
  margin-bottom: 10px;
}
.review p:last-child { margin-bottom: 0; }

/* FAQ */
.faq-list { display: grid; gap: 14px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 20px 22px;
}
.section-alt .faq-item { background: var(--bg); }
.faq-item h3 {
  font-size: 1.05rem;
  color: var(--navy-deep);
  margin-bottom: 10px;
}
.faq-item p {
  color: #2c3645;
  font-size: 0.95rem;
  margin-bottom: 8px;
}
.faq-item p:last-child { margin-bottom: 0; }

/* Requirements / changelog */
.req-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 20px;
}
.req-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 22px 20px;
}
.section-alt .req-card { background: var(--bg); }
.req-card h3 {
  font-size: 1.1rem;
  color: var(--navy-deep);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gold-soft);
}
.req-card ul {
  margin-left: 1.15em;
  color: #2c3645;
  font-size: 0.94rem;
}
.req-card li { margin-bottom: 8px; }
.req-card p {
  color: #2c3645;
  font-size: 0.94rem;
  margin-bottom: 10px;
}

.changelog { display: grid; gap: 16px; }
.change-item {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 20px 22px;
  border-left: 4px solid var(--gold);
}
.section-alt .change-item { background: var(--bg); }
.change-item h3 {
  font-size: 1.08rem;
  color: var(--navy-deep);
  margin-bottom: 10px;
}
.change-item p {
  color: #2c3645;
  font-size: 0.95rem;
  margin-bottom: 8px;
}
.change-item p:last-child { margin-bottom: 0; }

@media (max-width: 900px) {
  .hero-grid, .article-layout, .platform-grid, .scene-grid,
  .entry-grid, .review-grid, .req-grid, .stats-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .aside { position: static; }
}
@media (max-width: 560px) {
  .feature-grid, .stats-grid { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; padding: 14px 0; }
  .article { padding: 24px 18px; }
  .download-spotlight .btn-primary { width: 100%; min-width: 0; }
}