:root {
  --ink: #102033;
  --ink-soft: #42566f;
  --muted: #6d7c8c;
  --line: #dce5ed;
  --paper: #f8fbfc;
  --white: #ffffff;
  --cyan: #1f9ecf;
  --cyan-deep: #086f95;
  --gold: #c49339;
  --violet: #6c6bf2;
  --green: #2c9d75;
  --shadow: 0 22px 60px rgba(20, 43, 67, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

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

img,
svg {
  display: block;
}

.page-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 max(20px, calc((100vw - 1160px) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.menu-active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(16, 32, 51, 0.08);
  box-shadow: 0 12px 34px rgba(16, 32, 51, 0.08);
  backdrop-filter: blur(18px);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 750;
  letter-spacing: 0;
}

.brand-logo {
  width: 34px;
  height: 34px;
  filter: drop-shadow(0 10px 20px rgba(31, 158, 207, 0.2));
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 15px;
  font-weight: 600;
}

.site-nav a {
  opacity: 0.88;
}

.site-nav a:hover {
  opacity: 1;
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 10px;
  color: inherit;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 84svh;
  max-height: 760px;
  overflow: hidden;
  color: var(--white);
  background: #15283c;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(9, 20, 33, 0.9) 0%, rgba(9, 20, 33, 0.68) 32%, rgba(9, 20, 33, 0.16) 70%, rgba(9, 20, 33, 0.04) 100%),
    linear-gradient(180deg, rgba(9, 20, 33, 0.16) 0%, rgba(9, 20, 33, 0.18) 70%, rgba(248, 251, 252, 0.96) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 84svh;
  max-height: 760px;
  padding-top: 72px;
  padding-bottom: 48px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero .eyebrow {
  color: #bdefff;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 790px;
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.14;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.24;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 700px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
}

.hero-actions,
.consult-points {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.primary-button,
.secondary-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 750;
}

.primary-button {
  padding: 0 22px;
  border-radius: 999px;
  color: #071827;
  background: linear-gradient(135deg, #f4d27a, #8fe9ff);
  box-shadow: 0 16px 34px rgba(120, 220, 246, 0.28);
}

.secondary-link {
  color: rgba(255, 255, 255, 0.9);
}

.secondary-link::after {
  content: "";
  width: 34px;
  height: 1px;
  margin-left: 12px;
  background: currentColor;
}

.hero-signals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: min(780px, 100%);
  margin: 44px 0 0;
}

.hero-signals div {
  min-height: 118px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(6, 22, 36, 0.34);
  backdrop-filter: blur(12px);
}

.hero-signals dt {
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 800;
}

.hero-signals dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
}

.section {
  padding: 96px 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
  gap: 76px;
  align-items: start;
}

.problem-copy p,
.section-heading p,
.audience-layout p,
.belief-panel p,
.consult-layout p {
  color: var(--ink-soft);
  font-size: 18px;
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--ink-soft);
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at 45% 45%, var(--gold) 0 28%, var(--cyan) 31% 100%);
}

.method-section {
  background:
    linear-gradient(180deg, rgba(221, 239, 246, 0.78), rgba(255, 255, 255, 0.72)),
    linear-gradient(120deg, rgba(31, 158, 207, 0.16), rgba(196, 147, 57, 0.12));
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-heading.compact {
  max-width: 680px;
}

.method-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.method-node,
.feature-card,
.process-list li,
.qr-panel {
  border: 1px solid rgba(16, 32, 51, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.method-node {
  min-height: 248px;
  padding: 30px;
}

.node-index,
.process-list span {
  display: inline-block;
  margin-bottom: 22px;
  color: var(--cyan-deep);
  font-weight: 850;
}

.method-node p,
.feature-card p,
.process-list p {
  color: var(--ink-soft);
}

.features-section {
  background: var(--white);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card {
  min-height: 430px;
  padding: 28px;
}

.feature-card.featured {
  background: linear-gradient(180deg, #ffffff, #eef9fc);
  border-color: rgba(31, 158, 207, 0.2);
}

.feature-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  margin-bottom: 26px;
  border-radius: 16px;
  color: var(--cyan-deep);
  background: #e7f7fb;
}

.feature-icon svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.process-section {
  background: #eef5f7;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 280px;
  padding: 26px;
}

.audience-layout,
.consult-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
}

.audience-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.audience-tags span,
.consult-points span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--white);
  font-weight: 650;
}

.belief-section {
  padding-top: 24px;
}

.belief-panel {
  position: relative;
  overflow: hidden;
  padding: 56px;
  border-radius: 8px;
  color: var(--white);
  background:
    radial-gradient(circle at 85% 20%, rgba(244, 210, 122, 0.28), transparent 28%),
    radial-gradient(circle at 12% 90%, rgba(31, 158, 207, 0.36), transparent 34%),
    linear-gradient(135deg, #102033, #17455f 54%, #123025);
  box-shadow: var(--shadow);
}

.belief-panel .section-kicker,
.belief-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.belief-panel h2,
.belief-panel p {
  max-width: 820px;
}

.consult-section {
  background:
    linear-gradient(180deg, #f8fbfc, #ffffff),
    radial-gradient(circle at 80% 10%, rgba(31, 158, 207, 0.18), transparent 34%);
}

.qr-panel {
  justify-self: end;
  width: min(360px, 100%);
  padding: 24px;
  text-align: center;
}

.qr-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.qr-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-logo-overlay {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: 22%;
  max-width: 78px;
  min-width: 54px;
  height: auto;
  padding: 3px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(16, 32, 51, 0.18);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.qr-panel p {
  margin: 18px 0 4px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
}

.qr-panel small {
  color: var(--muted);
}

.site-footer {
  padding: 54px 0 24px;
  color: rgba(255, 255, 255, 0.8);
  background: #0d1c2b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 50px;
}

.footer-brand {
  margin-bottom: 14px;
  color: var(--white);
}

.site-footer h2 {
  margin: 0 0 14px;
  color: var(--white);
  font-size: 16px;
}

.site-footer p {
  max-width: 420px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 42px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.56);
  font-size: 13px;
}

@media (max-width: 960px) {
  .site-header {
    height: 64px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 16px;
    right: 16px;
    display: grid;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(16, 32, 51, 0.08);
    border-radius: 8px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 14px;
  }

  .nav-cta {
    border-color: var(--line);
    border-radius: 8px;
  }

  .hero,
  .hero-content {
    min-height: auto;
    max-height: none;
  }

  .hero-content {
    justify-content: flex-start;
    padding-top: 112px;
    padding-bottom: 58px;
  }

  .hero-signals,
  .method-grid,
  .feature-grid,
  .process-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .two-column,
  .audience-layout,
  .consult-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .qr-panel {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 28px, 1160px);
  }

  .hero {
    max-height: none;
  }

  .hero-image {
    object-position: 58% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(9, 20, 33, 0.9), rgba(9, 20, 33, 0.58)),
      linear-gradient(180deg, rgba(9, 20, 33, 0.12) 0%, rgba(9, 20, 33, 0.2) 72%, rgba(248, 251, 252, 0.98) 100%);
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 30px;
  }

  .hero-lede,
  .problem-copy p,
  .section-heading p,
  .audience-layout p,
  .belief-panel p,
  .consult-layout p {
    font-size: 16px;
  }

  .hero-signals {
    margin-top: 28px;
  }

  .hero-signals div,
  .method-node,
  .feature-card,
  .process-list li,
  .belief-panel {
    padding: 22px;
  }

  .section {
    padding: 68px 0;
  }

  .belief-section {
    padding-top: 8px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}