:root {
  --bg: #f4f7fb;
  --bg-white: #ffffff;
  --paper: #eef3fa;
  --line: #e7ecf4;
  --line-strong: #d8e1ef;
  --text: #0b1220;
  --muted: #5c6578;
  --accent: #0d7cff;
  --accent-deep: #2563eb;
  --accent-soft: rgba(13, 124, 255, 0.08);
  --accent-border: rgba(13, 124, 255, 0.18);
  --accent-glow: rgba(13, 124, 255, 0.22);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --shadow-hover: 0 22px 60px rgba(13, 124, 255, 0.12);
  --sidebar: 280px;
  --header: 72px;
  --section-x: 48px;
  --section-y: 72px;
  --head-max: 820px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header) + 24px);
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  overflow-y: auto;
  z-index: 30;
}

.brand {
  display: block;
  margin-bottom: 28px;
}

.logo-full {
  width: 100%;
  max-width: 220px;
  height: auto;
  object-fit: contain;
}

.logo-sm {
  width: auto;
  height: 36px;
  object-fit: contain;
}

.nav-group { margin-bottom: 22px; }

.nav-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 10px 8px;
  font-weight: 700;
}

.nav-link {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
  transition: 0.2s ease;
}

.nav-link:hover {
  color: var(--text);
  background: var(--accent-soft);
}

.nav-link.active {
  color: var(--accent-deep);
  background: var(--accent-soft);
  font-weight: 700;
}

.sidebar-cta {
  margin-top: 24px;
  padding: 18px;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #f8fbff 0%, #eef5ff 100%);
  border: 1px solid var(--accent-border);
}

.sidebar-cta p {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  box-shadow: 0 10px 24px var(--accent-glow);
}

.btn-primary:hover { transform: translateY(-1px); }

.btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: var(--bg-white);
}

.btn-ghost:hover {
  border-color: var(--accent-border);
  color: var(--accent-deep);
}

.btn-block { width: 100%; }

.main {
  min-width: 0;
  background: var(--bg-white);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header);
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
}

.menu-toggle {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--bg-white);
}

.section {
  padding: var(--section-y) var(--section-x);
  border-top: 1px solid var(--line);
  background: var(--bg-white);
}

.section.hero {
  border-top: none;
}

.section.alt {
  background: var(--bg);
}

.section-head {
  max-width: var(--head-max);
  margin-bottom: 36px;
}

.section-head h1,
.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.15;
  color: var(--text);
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.hero-highlight {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--accent-deep);
}

.hero-points {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.hero-points li {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.hero-points strong {
  font-size: 22px;
  color: var(--accent-deep);
}

.delivery-box {
  margin-bottom: 24px;
}

.delivery-title {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 800;
  color: var(--text);
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.delivery-grid span {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.delivery-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.delivery-metrics div {
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  border: 1px solid var(--line);
  text-align: center;
}

.delivery-metrics em {
  display: block;
  font-style: normal;
  color: var(--accent-deep);
  margin-bottom: 8px;
  font-size: 16px;
}

.delivery-metrics strong {
  display: block;
  font-size: 13px;
  line-height: 1.55;
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-white);
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

.section-kicker {
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  margin-bottom: 10px;
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.compliance-list {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.compliance-list li { margin-bottom: 8px; }

.featured-card {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
  box-shadow: var(--shadow-hover);
}

.compliance-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 24px 28px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(13, 124, 255, 0.08), rgba(37, 99, 235, 0.04));
  border: 1px solid var(--accent-border);
}

.compliance-banner strong {
  display: block;
  font-size: 18px;
  margin-bottom: 6px;
}

.compliance-banner p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.notify-section {
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
}

.notify-shell {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--accent-border);
  background: linear-gradient(135deg, rgba(13, 124, 255, 0.1), rgba(255, 255, 255, 0.96));
  box-shadow: var(--shadow-hover);
}

.notify-badge {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 14px;
}

.notify-copy h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.15;
  color: var(--text);
}

.notify-lead {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.notify-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.notify-flow span {
  position: relative;
  padding: 8px 14px 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--accent-border);
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 700;
}

.notify-flow span:not(:last-child)::after {
  content: "→";
  margin-left: 10px;
  color: var(--muted);
  font-weight: 400;
}

.notify-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.notify-list li {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.notify-list strong {
  display: block;
  color: var(--text);
  margin-bottom: 4px;
}

.notify-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.notify-mock {
  padding: 18px;
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.notify-mock-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.notify-mock-head span {
  font-weight: 800;
  color: var(--text);
}

.notify-mock-head em {
  font-style: normal;
  font-size: 12px;
  color: #fff;
  background: var(--accent-deep);
  padding: 4px 10px;
  border-radius: 999px;
}

.notify-item {
  display: flex;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  border: 1px solid var(--line);
  margin-bottom: 10px;
}

.notify-item:last-child {
  margin-bottom: 0;
}

.notify-item-new {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, #ffffff, #f3f8ff);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.notify-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-deep);
  margin-top: 6px;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.notify-dot-warn {
  background: #f59e0b;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
}

.notify-dot-ok {
  background: #10b981;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
}

.notify-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
  color: var(--text);
}

.notify-item p {
  margin: 0 0 6px;
  font-size: 13px;
  color: var(--muted);
}

.notify-item time {
  font-size: 12px;
  color: var(--muted);
}

.notify-caption {
  margin: 12px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

.tag-hot {
  color: var(--accent-deep);
  border-color: var(--accent-border);
  background: var(--accent-soft);
  font-weight: 700;
}

.partner-item-hot {
  color: var(--accent-deep);
  border-color: var(--accent-border);
  background: var(--accent-soft);
  font-weight: 700;
}

.notify-feature-card {
  grid-column: 1 / -1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 24px 18px;
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.stat-card strong {
  display: block;
  font-size: 34px;
  line-height: 1;
  margin-bottom: 8px;
  color: var(--accent-deep);
}

.stat-card span {
  display: block;
  font-size: 13px;
  color: var(--muted);
}

.feature-grid,
.module-grid,
.workflow-grid,
.scenario-grid,
.pricing-grid {
  display: grid;
  gap: 18px;
}

.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.module-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.workflow-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pricing-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  padding: 22px;
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
  transition: 0.25s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-border);
  box-shadow: var(--shadow-hover);
}

.card-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
  margin-bottom: 10px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--text);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.card-tags span {
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  border: 1px solid var(--line);
}

.table-wrap {
  overflow: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-white);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th, td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: 14px;
}

th {
  background: var(--paper);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
}

td { color: var(--muted); }
tr:last-child td { border-bottom: none; }

.showcase {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 20px;
  align-items: stretch;
}

.showcase-tabs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tab-btn {
  text-align: left;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-white);
  color: var(--muted);
}

.tab-btn.active {
  color: var(--text);
  border-color: var(--accent-border);
  background: linear-gradient(180deg, #ffffff, #f3f8ff);
  box-shadow: var(--shadow);
}

.tab-btn strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
  color: var(--text);
}

.tab-btn span {
  display: block;
  font-size: 12px;
  line-height: 1.6;
}

.showcase-panel {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-white);
  box-shadow: var(--shadow);
}

.showcase-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.showcase-head h3 {
  margin: 0;
  font-size: 16px;
  color: var(--text);
}

.showcase-controls { display: flex; gap: 8px; }

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--bg-white);
}

.icon-btn:hover {
  border-color: var(--accent-border);
  color: var(--accent-deep);
}

.showcase-body {
  background: #eef2f8;
}

.showcase-body img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  object-position: top center;
}

.showcase-caption {
  padding: 16px 18px 20px;
  color: var(--muted);
  font-size: 14px;
  background: var(--bg-white);
}

.price-card { position: relative; padding: 28px 24px; }

.price-card.featured {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
  box-shadow: var(--shadow-hover);
}

.price-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 11px;
  font-weight: 800;
  color: var(--accent-deep);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

.price-card .tier {
  font-size: 13px;
  color: var(--muted);
}

.price-card h3 {
  margin: 8px 0 12px;
  font-size: 28px;
}

.price-card .amount {
  font-size: 34px;
  font-weight: 900;
  margin-bottom: 16px;
  color: var(--accent-deep);
}

.price-card .period {
  font-size: 16px;
  font-weight: 600;
  color: var(--muted);
  margin-left: 2px;
}

.price-card ul {
  margin: 0 0 20px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.price-card li { margin-bottom: 8px; }

.pricing-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.partner-item {
  padding: 16px 12px;
  text-align: center;
  border-radius: var(--radius-sm);
  background: var(--bg-white);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
  transition: 0.2s ease;
}

.partner-item:hover {
  color: var(--accent-deep);
  border-color: var(--accent-border);
  background: var(--accent-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
}

.contact-card,
.qr-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.contact-item strong {
  display: block;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
}

.contact-item span,
.contact-item a {
  color: var(--muted);
  font-size: 14px;
}

.contact-item a:hover { color: var(--accent-deep); }

.qr-box {
  width: 180px;
  height: 180px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px dashed var(--line-strong);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 16px;
}

.qr-image {
  width: 180px;
  height: 180px;
  margin: 0 auto 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  object-fit: contain;
}

.footer {
  padding: 28px var(--section-x) 40px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-beian {
  color: var(--muted);
  font-size: 13px;
}

.footer-beian:hover {
  color: var(--accent-deep);
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.98);
  padding: 88px 24px 24px;
  overflow-y: auto;
}

.mobile-nav.open { display: block; }

.mobile-nav .nav-link {
  font-size: 16px;
  margin-bottom: 6px;
}

@media (max-width: 1180px) {
  .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid,
  .module-grid,
  .compliance-grid,
  .hero-points { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .delivery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .partner-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .delivery-metrics { grid-template-columns: 1fr; }
}

@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .topbar { display: flex; }
  .section { padding: 48px 20px; }
  .footer { padding: 28px 20px 40px; }
  .showcase,
  .contact-grid,
  .workflow-grid,
  .scenario-grid,
  .pricing-grid,
  .compliance-grid,
  .hero-points { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-grid,
  .module-grid,
  .partner-grid { grid-template-columns: 1fr; }
  .delivery-grid { grid-template-columns: 1fr; }
  .compliance-banner { flex-direction: column; align-items: flex-start; }
  .notify-shell { grid-template-columns: 1fr; padding: 24px 20px; }
  .notify-flow { flex-direction: column; align-items: flex-start; }
  .notify-flow span:not(:last-child)::after { content: none; }
}