:root {
  --accent: #17324a;
  --accent-deep: #102335;
  --accent-soft: #dbe5ee;
  --highlight: #b1864f;
  --bg: #f6f1e8;
  --bg-soft: #ede5d8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --surface-dark: #152434;
  --border: rgba(19, 31, 43, 0.1);
  --border-strong: rgba(23, 50, 74, 0.18);
  --text-main: #18202b;
  --text-muted: #697385;
  --text-soft: #505b6b;
  --text-on-dark: rgba(255, 255, 255, 0.82);
  --success: #89d3ad;
  --shadow: 0 28px 80px rgba(28, 37, 52, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text-main);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(177, 134, 79, 0.12), transparent 30%),
    radial-gradient(circle at right 10% top 20%, rgba(23, 50, 74, 0.08), transparent 24%),
    linear-gradient(180deg, #f8f4ed 0%, #f5efe6 42%, #f1eadf 100%);
}

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

.site-shell {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0 96px;
}

.site-header,
.site-nav,
.hero-stats,
.capability-layout,
.capability-list,
.platform-layout,
.platform-board,
.workflow-grid,
.tech-grid {
  display: grid;
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 20;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 16px 24px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 50px rgba(17, 24, 39, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: inline-flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 16px 32px rgba(23, 50, 74, 0.18);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-copy strong {
  font-size: 15px;
  letter-spacing: -0.03em;
}

.brand-copy em {
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.site-nav {
  grid-auto-flow: column;
  justify-content: center;
  gap: 28px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
}

.site-nav a,
.header-cta,
.button {
  transition:
    color 0.2s ease,
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.site-nav a:hover,
.header-cta:hover,
.button:hover {
  transform: translateY(-1px);
}

.site-nav a:hover {
  color: var(--accent);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 14px 28px rgba(23, 50, 74, 0.16);
}

.hero-section {
  padding: 72px 0 24px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--highlight);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-stage h1,
.section-heading h2,
.cta-card h2 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Songti SC", "STSong", serif;
  font-weight: 600;
  letter-spacing: -0.04em;
}

.hero-stage {
  position: relative;
  min-height: 780px;
  border-radius: 42px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: 0 36px 110px rgba(17, 24, 39, 0.12);
  background:
    linear-gradient(180deg, rgba(11, 18, 28, 0.08), rgba(11, 18, 28, 0.4)),
    rgba(255, 255, 255, 0.6);
}

.hero-stage-art {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 24, 37, 0.12), rgba(12, 24, 37, 0.56)),
    radial-gradient(circle at 20% 18%, rgba(231, 196, 142, 0.28), transparent 18%),
    radial-gradient(circle at 78% 22%, rgba(117, 164, 201, 0.2), transparent 20%),
    radial-gradient(circle at 50% 68%, rgba(255, 255, 255, 0.16), transparent 24%),
    linear-gradient(135deg, #c8b59b 0%, #8da0b2 28%, #3f5468 58%, #182737 100%);
}

.hero-stage-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 15, 24, 0.04), rgba(8, 15, 24, 0.26)),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.05) 0,
      rgba(255, 255, 255, 0.05) 1px,
      transparent 1px,
      transparent 160px
    ),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.04) 0,
      rgba(255, 255, 255, 0.04) 1px,
      transparent 1px,
      transparent 120px
    );
  opacity: 0.55;
}

.hero-stage-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, transparent 0, transparent 36%, rgba(7, 13, 21, 0.24) 100%);
}

.hero-stage-badge {
  position: absolute;
  top: 24px;
  left: 24px;
  z-index: 2;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(18px);
  color: rgba(255, 255, 255, 0.88);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-stage-float {
  position: absolute;
  z-index: 2;
  min-width: 180px;
  padding: 16px 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(20px);
  box-shadow: 0 18px 40px rgba(10, 18, 28, 0.16);
}

.hero-stage-float span,
.hero-stage-float strong {
  display: block;
  color: rgba(255, 255, 255, 0.92);
}

.hero-stage-float span {
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.58);
}

.hero-stage-float strong {
  font-size: 16px;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.hero-stage-float-top {
  top: 98px;
  right: 54px;
}

.hero-stage-float-mid {
  right: 92px;
  bottom: 206px;
}

.hero-stage-float-bottom {
  left: 54px;
  bottom: 208px;
}

.hero-stage-overlay {
  position: absolute;
  inset: auto 28px 28px 28px;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
}

.hero-stage-copy {
  max-width: 540px;
  padding: 26px 28px 28px;
  border-radius: 28px;
  background: rgba(245, 239, 230, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 22px 54px rgba(18, 29, 42, 0.12);
}

.hero-stage h1 {
  max-width: 8.6ch;
  font-size: clamp(2.8rem, 5vw, 4.9rem);
  line-height: 0.98;
}

.hero-description {
  max-width: 34ch;
  margin: 18px 0 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(18px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 18px 38px rgba(23, 50, 74, 0.16);
}

.button-secondary {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.52);
  color: var(--accent);
}

.button-light {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.hero-aside-label,
.hero-stats span,
.capability-lead p,
.capability-card p,
.platform-copy p,
.board-step p,
.workflow-card p,
.tech-card p,
.tech-card span,
.cta-card span {
  color: var(--text-muted);
}

.hero-aside-label {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-aside-card,
.capability-lead,
.capability-card,
.platform-copy article,
.board-step,
.workflow-card,
.tech-card {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-aside-card {
  padding: 36px;
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(251, 248, 242, 0.88)),
    var(--surface-strong);
}

.visual-placeholder {
  position: relative;
  overflow: hidden;
  border: 1px dashed rgba(23, 50, 74, 0.18);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(244, 238, 229, 0.92)),
    repeating-linear-gradient(
      -45deg,
      rgba(23, 50, 74, 0.03) 0,
      rgba(23, 50, 74, 0.03) 12px,
      rgba(177, 134, 79, 0.04) 12px,
      rgba(177, 134, 79, 0.04) 24px
    );
}

.visual-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(177, 134, 79, 0.12), transparent 28%),
    radial-gradient(circle at left bottom, rgba(23, 50, 74, 0.08), transparent 30%);
  pointer-events: none;
}

.visual-placeholder-hero {
  display: grid;
  gap: 14px;
  margin-bottom: 28px;
  padding: 18px;
}

.visual-placeholder-main,
.visual-placeholder-tile {
  position: relative;
  z-index: 1;
}

.visual-placeholder-main {
  min-height: 208px;
  padding: 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(255, 255, 255, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero-aside-card .visual-placeholder-main strong,
.visual-placeholder-tile span {
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.hero-aside-card .visual-placeholder-main strong,
.visual-placeholder-main strong {
  max-width: none;
  margin: 0 0 10px;
  color: var(--accent-deep);
  font-size: 1.4rem;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.visual-placeholder-main p {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.8;
}

.visual-placeholder-tag {
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(23, 50, 74, 0.08);
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-placeholder-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.visual-placeholder-tile {
  min-height: 124px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  background: rgba(255, 255, 255, 0.58);
  display: flex;
  align-items: flex-end;
}

.visual-placeholder-tile span {
  display: block;
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}

.visual-placeholder-inline {
  margin-top: 28px;
}

.visual-placeholder-inline .visual-placeholder-main {
  min-height: 190px;
}

.visual-placeholder-card {
  margin-top: 24px;
  padding: 12px;
}

.visual-placeholder-card .visual-placeholder-tile {
  min-height: 132px;
}

.hero-aside-card > strong {
  display: block;
  max-width: 16ch;
  color: var(--accent-deep);
  font-size: clamp(2rem, 3vw, 2.85rem);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.hero-aside-list {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.hero-aside-list article {
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.hero-aside-list span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
}

.hero-aside-list p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.8;
}

.hero-stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 22px;
  padding: 36px 0 0;
  border-top: 1px solid rgba(19, 31, 43, 0.08);
}

.hero-stats article {
  padding-right: 20px;
}

.hero-stats strong,
.capability-lead h3,
.capability-card h3,
.platform-copy strong,
.board-step strong,
.workflow-card strong,
.tech-card strong {
  display: block;
  margin-bottom: 12px;
}

.hero-stats strong {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: -0.02em;
}

.hero-stats span,
.trust-strip span {
  font-size: 14px;
  line-height: 1.8;
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  margin-top: 30px;
  padding: 22px 0 0;
  color: var(--text-soft);
}

.trust-strip span {
  position: relative;
  padding-left: 18px;
}

.trust-strip span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(177, 134, 79, 0.7);
  transform: translateY(-50%);
}

.section-block {
  padding-top: 148px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 44px;
}

.section-heading.narrow {
  max-width: 760px;
}

.section-heading h2 {
  font-size: clamp(2.5rem, 4vw, 4.35rem);
  line-height: 1.08;
}

.capability-layout {
  grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
  gap: 28px;
}

.capability-lead,
.capability-card,
.platform-copy article,
.board-step,
.workflow-card,
.tech-card {
  padding: 32px;
  border-radius: 28px;
}

.capability-lead {
  align-self: stretch;
  background:
    linear-gradient(150deg, rgba(23, 50, 74, 0.06), rgba(255, 255, 255, 0.92) 44%),
    rgba(255, 255, 255, 0.88);
  border-color: var(--border-strong);
}

.capability-lead span,
.capability-card span {
  display: inline-flex;
  margin-bottom: 26px;
  color: var(--highlight);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.capability-lead h3,
.capability-card h3 {
  color: var(--accent-deep);
  font-size: 1.6rem;
  line-height: 1.28;
  letter-spacing: -0.03em;
}

.capability-lead p,
.capability-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
}

.capability-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.platform-layout {
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 32px;
}

.platform-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.platform-copy article {
  background: rgba(255, 255, 255, 0.76);
}

.platform-copy strong,
.board-step strong,
.workflow-card strong,
.tech-card strong {
  color: var(--accent-deep);
  font-size: 1.35rem;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.platform-copy p,
.board-step p,
.workflow-card p,
.tech-card span {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
}

.platform-board {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.board-step {
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(245, 241, 232, 0.94)),
    rgba(255, 255, 255, 0.88);
}

.board-step p,
.tech-card p {
  margin-bottom: 22px;
  color: var(--highlight);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.workflow-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.workflow-card {
  min-height: 220px;
}

.tech-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.tech-card {
  min-height: 220px;
}

.cta-section {
  padding: 148px 0 20px;
}

.cta-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  padding: 42px 44px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.08), transparent 30%),
    linear-gradient(135deg, #17324a 0%, #102335 100%);
  box-shadow: 0 36px 90px rgba(16, 35, 53, 0.22);
}

.cta-card .eyebrow {
  color: rgba(255, 255, 255, 0.56);
}

.cta-card h2 {
  max-width: 13ch;
  color: #fff;
  font-size: clamp(2.4rem, 4vw, 4rem);
  line-height: 1.08;
}

.cta-card span {
  display: block;
  max-width: 44ch;
  margin-top: 16px;
  color: var(--text-on-dark);
  font-size: 15px;
  line-height: 1.85;
}

@media (max-width: 1140px) {
  .capability-layout,
  .platform-layout,
  .tech-grid {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: 720px;
  }

  .hero-stage-overlay {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 820px) {
  .site-shell {
    width: min(100% - 28px, 1240px);
    padding-top: 18px;
    padding-bottom: 72px;
  }

  .site-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 24px;
  }

  .site-nav {
    min-width: 0;
    grid-auto-flow: column;
    justify-content: start;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    white-space: nowrap;
    padding: 9px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(23, 50, 74, 0.08);
  }

  .brand {
    gap: 10px;
    min-width: 0;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    font-size: 16px;
  }

  .brand-copy {
    gap: 2px;
  }

  .brand-copy strong {
    font-size: 14px;
  }

  .brand-copy em {
    font-size: 10px;
    letter-spacing: 0.08em;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 14px;
    white-space: nowrap;
    font-size: 11px;
    flex-shrink: 0;
  }

  .hero-section {
    padding: 52px 0 24px;
  }

  .hero-stage {
    min-height: 660px;
    border-radius: 28px;
  }

  .hero-stage h1 {
    max-width: none;
    font-size: clamp(2.4rem, 10vw, 3.8rem);
  }

  .hero-description {
    font-size: 15px;
  }

  .hero-stats,
  .capability-list,
  .platform-board,
  .workflow-grid,
  .tech-grid {
    grid-template-columns: 1fr;
  }

  .visual-placeholder-grid {
    grid-template-columns: 1fr;
  }

  .section-block,
  .cta-section {
    padding-top: 112px;
  }

  .hero-aside-card,
  .capability-lead,
  .capability-card,
  .platform-copy article,
  .board-step,
  .workflow-card,
  .tech-card,
  .cta-card {
    padding: 28px 24px;
    border-radius: 24px;
  }

  .visual-placeholder-hero,
  .visual-placeholder-card {
    padding: 14px;
    border-radius: 20px;
  }

  .visual-placeholder-main,
  .visual-placeholder-card .visual-placeholder-tile {
    min-height: 160px;
  }

  .hero-stage-badge {
    top: 16px;
    left: 16px;
  }

  .hero-stage-float {
    min-width: 0;
    max-width: 220px;
    padding: 14px 16px;
    border-radius: 20px;
  }

  .hero-stage-float-top {
    top: 74px;
    right: 20px;
  }

  .hero-stage-float-mid {
    right: 20px;
    bottom: 184px;
  }

  .hero-stage-float-bottom {
    left: 20px;
    bottom: 184px;
  }

  .hero-stage-overlay {
    inset: auto 16px 16px 16px;
    gap: 16px;
  }

  .hero-stage-copy,
  .hero-actions {
    width: 100%;
  }

  .hero-stage-copy {
    padding: 22px 20px 20px;
    border-radius: 22px;
  }

  .hero-actions {
    padding: 14px;
    border-radius: 20px;
  }
}

@media (max-width: 620px) {
  .site-shell {
    width: min(100% - 20px, 1240px);
  }

  .site-header {
    top: 10px;
    gap: 8px;
    padding: 10px 12px;
    border-radius: 20px;
  }

  .brand-copy em {
    display: none;
  }

  .site-nav a {
    padding: 8px 10px;
    font-size: 12px;
  }

  .header-cta {
    padding: 0 12px;
  }

  .hero-stage {
    min-height: 600px;
  }

  .hero-stage-float {
    display: none;
  }

  .hero-stage h1 {
    font-size: clamp(2rem, 11vw, 3rem);
  }
}