:root {
  --bg: #07111d;
  --bg-2: #0c1726;
  --panel: #111c2c;
  --panel-2: #152338;
  --line: rgba(169, 193, 220, 0.16);
  --text: #eef5ff;
  --muted: #9db1c8;
  --accent: #39a9ff;
  --accent-2: #2dd4bf;
  --accent-3: #f59e0b;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.32);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, #08101b 0%, #07111d 45%, #061018 100%);
  line-height: 1.68;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 15, 25, 0.86);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 22px rgba(57, 169, 255, 0.24);
  flex: none;
}

.brand-logo {
  width: 203px;
  height: 66px;
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
  flex: none;
  background: transparent;
}

.brand-copy {
  display: none;
  min-width: 0;
}

.brand-title {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
}

.brand-subtitle {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 600;
  border: 1px solid transparent;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  background: rgba(57, 169, 255, 0.1);
  border-color: rgba(57, 169, 255, 0.16);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(17, 28, 44, 0.9);
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.menu-lines {
  width: 18px;
  height: 12px;
  position: relative;
}

.menu-lines::before,
.menu-lines::after,
.menu-lines span {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.menu-lines::before {
  top: 0;
}

.menu-lines span {
  top: 5px;
}

.menu-lines::after {
  bottom: 0;
}

.mobile-panel {
  position: fixed;
  inset: 0;
  background: rgba(2, 8, 15, 0.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s ease;
  z-index: 60;
}

.mobile-panel.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: absolute;
  top: 0;
  right: 0;
  width: min(84vw, 320px);
  height: 100%;
  background: linear-gradient(180deg, #101b2b 0%, #0b1522 100%);
  border-left: 1px solid var(--line);
  padding: 20px;
  transform: translateX(100%);
  transition: transform 0.24s ease;
}

.mobile-panel.is-open .mobile-drawer {
  transform: translateX(0);
}

.mobile-drawer .nav {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.mobile-drawer .nav a {
  width: 100%;
}

.drawer-close {
  display: inline-flex;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  cursor: pointer;
}

.hero {
  padding: 54px 0 26px;
}

.site-banner {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  display: flex;
  align-items: flex-end;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.site-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 12, 21, 0.92), rgba(4, 12, 21, 0.58) 50%, rgba(4, 12, 21, 0.86)),
    var(--banner-image) center center / cover no-repeat;
}

.site-banner .container {
  position: relative;
  z-index: 1;
}

.site-banner h1 {
  margin: 12px 0 10px;
  font-size: 2.35rem;
  line-height: 1.15;
}

.site-banner p {
  margin: 0;
  max-width: 44rem;
  color: #d7e7f7;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(45, 212, 191, 0.08);
  border: 1px solid rgba(45, 212, 191, 0.18);
  color: #9ff0e6;
  font-size: 0.92rem;
  font-weight: 600;
}

.hero h1 {
  margin: 14px 0 16px;
  font-size: 3rem;
  line-height: 1.14;
  letter-spacing: 0;
}

.hero .lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.03rem;
  max-width: 46rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #1d8ef0);
  color: #fff;
  box-shadow: 0 12px 24px rgba(57, 169, 255, 0.18);
}

.btn-secondary {
  background: rgba(17, 28, 44, 0.9);
  border-color: var(--line);
  color: var(--text);
}

.hero-panel {
  background: linear-gradient(180deg, rgba(17, 28, 44, 0.96), rgba(11, 19, 31, 0.96));
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.showcase {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 18px;
  align-items: center;
}

.showcase-copy {
  display: grid;
  gap: 14px;
}

.showcase-copy h2 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.showcase-copy p {
  margin: 0;
  color: var(--muted);
}

.showcase-points {
  display: grid;
  gap: 10px;
}

.showcase-point {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(169, 193, 220, 0.1);
}

.showcase-point strong {
  display: block;
  margin-bottom: 4px;
}

.showcase-shot {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(169, 193, 220, 0.14);
  background: linear-gradient(180deg, rgba(17, 28, 44, 0.96), rgba(11, 19, 31, 0.96));
  box-shadow: var(--shadow);
}

.showcase-shot img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center top;
}

.showcase-caption {
  padding: 14px 16px;
  border-top: 1px solid rgba(169, 193, 220, 0.1);
  color: var(--muted);
  font-size: 0.92rem;
}

.visual-board {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(169, 193, 220, 0.14);
  background: linear-gradient(180deg, rgba(17, 28, 44, 0.96), rgba(11, 19, 31, 0.96));
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.visual-tier {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(169, 193, 220, 0.1);
}

.visual-mark {
  width: 78px;
  min-height: 78px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--visual-accent, var(--accent)), rgba(255, 255, 255, 0.16));
}

.visual-copy strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
}

.visual-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.chip-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.cap-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(57, 169, 255, 0.08);
  border: 1px solid rgba(57, 169, 255, 0.14);
  color: #d8e9f8;
  font-size: 0.82rem;
  font-weight: 600;
}

.hero-shot {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(169, 193, 220, 0.12);
  background: rgba(255, 255, 255, 0.02);
}

.hero-shot img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.hero-mini {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.mini-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mini-chip {
  padding: 12px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(169, 193, 220, 0.12);
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.stats {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stat {
  padding: 16px;
  border-radius: 16px;
  background: rgba(17, 28, 44, 0.92);
  border: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-size: 1.35rem;
  margin-bottom: 4px;
}

.stat span {
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: 56px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 22px;
}

.section-head h2 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.section-head p {
  margin: 0;
  max-width: 44rem;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(57, 169, 255, 0.1);
  border: 1px solid rgba(57, 169, 255, 0.18);
  color: #cfeaff;
  font-size: 0.84rem;
  font-weight: 600;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  padding: 20px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17, 28, 44, 0.96), rgba(11, 19, 31, 0.96));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.16rem;
  line-height: 1.35;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card .meta {
  margin-top: 12px;
  color: #c8d9ea;
  font-size: 0.92rem;
}

.meta-stack {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.meta-item {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(169, 193, 220, 0.1);
}

.meta-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.94rem;
  color: var(--text);
}

.meta-item span {
  color: var(--muted);
  font-size: 0.92rem;
}

.version-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.version-node {
  padding: 16px;
  border-radius: 16px;
  background: rgba(17, 28, 44, 0.88);
  border: 1px solid var(--line);
}

.version-node strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.version-node span {
  color: var(--muted);
  font-size: 0.92rem;
}

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

.compare-card {
  padding: 18px;
  border-radius: 16px;
  background: rgba(17, 28, 44, 0.92);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.compare-card h3 {
  margin: 0 0 8px;
  font-size: 1.04rem;
}

.compare-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #e8f4ff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(169, 193, 220, 0.14);
}

.compare-stack {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.compare-item {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(169, 193, 220, 0.1);
}

.compare-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.92rem;
}

.compare-item span {
  color: var(--muted);
  font-size: 0.9rem;
}

.product-card {
  position: relative;
  overflow: hidden;
}

.product-card::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: var(--product-accent, var(--accent));
}

.product-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}

.product-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: #fff;
  background: linear-gradient(135deg, var(--product-accent, var(--accent)), rgba(255, 255, 255, 0.16));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.product-headline {
  min-width: 0;
}

.product-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(169, 193, 220, 0.12);
  color: #d9e9f8;
  font-size: 0.8rem;
  font-weight: 700;
}

.product-headline h3 {
  margin: 0;
}

.product-lead {
  margin: 0;
  color: var(--muted);
}

.product-card .feature-list {
  margin-top: 16px;
}

.product-card.callout .product-tag {
  background: rgba(45, 212, 191, 0.1);
  border-color: rgba(45, 212, 191, 0.16);
  color: #bff7ef;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 9px;
}

.feature-list li {
  display: flex;
  gap: 10px;
  color: var(--muted);
}

.feature-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  flex: none;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.step-list {
  display: grid;
  gap: 12px;
}

.step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(17, 28, 44, 0.92);
  border: 1px solid var(--line);
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  background: rgba(57, 169, 255, 0.14);
  color: #c8e8ff;
  font-weight: 700;
}

.step strong {
  display: block;
  margin-bottom: 4px;
}

.quote {
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: rgba(57, 169, 255, 0.08);
}

.quote p {
  margin: 0;
  color: #d4e8f8;
}

.pain-solution-grid {
  display: grid;
  gap: 16px;
}

.pain-solution-card {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 16px;
  align-items: stretch;
}

.pain-box,
.solution-box {
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.pain-box {
  background: linear-gradient(180deg, rgba(64, 20, 28, 0.42), rgba(28, 16, 24, 0.42));
}

.solution-box {
  background: linear-gradient(180deg, rgba(12, 39, 55, 0.68), rgba(11, 19, 31, 0.96));
}

.pain-box h3,
.solution-box h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}

.pain-label,
.solution-label {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  font-weight: 700;
}

.pain-label {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.18);
  color: #fecaca;
}

.solution-label {
  background: rgba(45, 212, 191, 0.1);
  border: 1px solid rgba(45, 212, 191, 0.18);
  color: #bff7ef;
}

.value-matrix {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.value-node {
  padding: 16px;
  border-radius: 16px;
  background: rgba(17, 28, 44, 0.92);
  border: 1px solid var(--line);
}

.value-node strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
}

.value-node p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer {
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.9fr;
  gap: 16px;
}

.footer h3,
.footer h4 {
  margin: 0 0 12px;
  color: var(--text);
}

.footer p,
.footer li {
  margin: 0;
  color: var(--muted);
}

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.footer .fine {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(169, 193, 220, 0.12);
  font-size: 0.92rem;
}

.page-banner {
  padding: 34px 0 16px;
}

.page-banner h1 {
  margin: 12px 0 10px;
  font-size: 2.4rem;
  line-height: 1.18;
}

.page-banner p {
  margin: 0;
  color: var(--muted);
  max-width: 48rem;
}

.callout {
  background: linear-gradient(135deg, rgba(57, 169, 255, 0.14), rgba(45, 212, 191, 0.1));
  border: 1px solid rgba(57, 169, 255, 0.18);
}

.map-link {
  display: inline-flex;
  margin-top: 14px;
  padding: 11px 14px;
  border-radius: 12px;
  background: rgba(17, 28, 44, 0.9);
  border: 1px solid var(--line);
  font-weight: 700;
}

.map-link:hover {
  border-color: rgba(57, 169, 255, 0.26);
}

@media (max-width: 1100px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .version-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .value-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .compare-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .hero-grid,
  .split,
  .pain-solution-card,
  .showcase {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .section-head {
    flex-direction: column;
    align-items: start;
  }

  .hero h1 {
    font-size: 2.45rem;
  }

  .site-banner {
    min-height: 190px;
  }

  .site-banner h1 {
    font-size: 2rem;
  }

  .product-header {
    align-items: center;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .hero {
    padding-top: 34px;
  }

  .section {
    padding: 44px 0;
  }

  .page-banner h1,
  .section-head h2 {
    font-size: 1.75rem;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .footer-grid,
  .stats,
  .version-strip,
  .value-matrix,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .site-banner {
    min-height: 170px;
    padding: 20px 0;
  }

  .site-banner h1 {
    font-size: 1.6rem;
  }

  .mini-row {
    grid-template-columns: 1fr;
  }

  .card,
  .stat {
    padding: 16px;
  }
}

@media (max-width: 560px) {
  .header-inner {
    min-height: 78px;
  }

  .brand-logo {
    width: 172px;
    height: 56px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-panel {
    padding: 14px;
  }

  .step {
    padding: 14px;
  }
}