:root {
  --bg: #f5f7fb;
  --paper: #ffffff;
  --paper-soft: #f9fbff;
  --ink: #111827;
  --ink-strong: #07111f;
  --muted: #5d6b82;
  --quiet: #7b8798;
  --line: #dbe3ef;
  --line-strong: #c8d3e3;
  --blue: #125bff;
  --blue-deep: #0b3aa8;
  --teal: #0f9f9a;
  --green: #138a62;
  --amber: #d97706;
  --slate: #172033;
  --shadow: 0 18px 50px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(135deg, rgba(18, 91, 255, .08) 0 1px, transparent 1px 22px),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 45%, #ffffff 100%);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 12px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, .88);
  border-bottom: 1px solid rgba(219, 227, 239, .84);
  backdrop-filter: blur(18px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  font-weight: 900;
}
.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}
.brand small {
  display: block;
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 2px;
}
.nav a {
  color: #344054;
  font-size: 14px;
  font-weight: 800;
  padding: 9px 10px;
  border-radius: 8px;
}
.nav a:hover { background: #eef4ff; color: var(--blue); }

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--blue);
  color: white;
  font-weight: 900;
  box-shadow: 0 12px 28px rgba(18, 91, 255, .18);
}
.cta:hover { transform: translateY(-1px); }
.cta.secondary {
  background: white;
  color: var(--blue-deep);
  border: 1px solid var(--line-strong);
  box-shadow: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr);
  gap: clamp(32px, 6vw, 76px);
  align-items: center;
  padding: clamp(56px, 8vw, 108px) clamp(20px, 5vw, 72px) clamp(34px, 6vw, 72px);
}
.hero-copy { max-width: 760px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue-deep);
  font-size: 14px;
  font-weight: 900;
}
h1 {
  margin: 0;
  max-width: 12ch;
  color: var(--ink-strong);
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.08;
  letter-spacing: 0;
}
.hero-text {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.hero-proof span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .72);
  color: #344054;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 800;
}
.hero-visual {
  position: relative;
  min-height: 520px;
}
.hero-visual picture {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border: 1px solid rgba(200, 211, 227, .9);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  border-radius: 0 0 18px 18px;
  background: linear-gradient(180deg, transparent, rgba(7, 17, 31, .48));
  pointer-events: none;
}
.floating-note {
  position: absolute;
  z-index: 2;
  display: grid;
  gap: 2px;
  width: min(280px, 72%);
  border: 1px solid rgba(255, 255, 255, .54);
  border-radius: 8px;
  background: rgba(255, 255, 255, .92);
  padding: 14px 16px;
  box-shadow: 0 16px 34px rgba(15, 23, 42, .16);
  backdrop-filter: blur(12px);
}
.floating-note strong { color: var(--ink-strong); font-size: 16px; }
.floating-note span { color: var(--muted); font-size: 13px; }
.note-primary { left: 22px; bottom: 24px; }
.note-secondary { right: 22px; top: 24px; }

.proof-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0 clamp(20px, 5vw, 72px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .04);
}
.proof-band div {
  min-height: 116px;
  background: rgba(255, 255, 255, .92);
  padding: 22px;
}
.proof-band strong {
  display: block;
  color: var(--ink-strong);
  font-size: 18px;
  margin-bottom: 6px;
}
.proof-band span { color: var(--muted); }

.proof-metrics {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr);
  gap: 28px;
  align-items: center;
  margin: 18px clamp(20px, 5vw, 72px) 0;
  border: 1px solid rgba(18, 91, 255, .18);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff, #eef6ff);
  padding: clamp(26px, 5vw, 48px);
}
.metrics-copy h2 {
  margin: 0;
  color: var(--ink-strong);
  font-size: clamp(28px, 3.6vw, 46px);
  line-height: 1.16;
}
.metrics-copy p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.metrics-grid div {
  min-height: 132px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .82);
  padding: 18px;
}
.metrics-grid strong {
  display: block;
  color: var(--blue-deep);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1;
}
.metrics-grid span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-weight: 800;
}

.section {
  padding: clamp(54px, 8vw, 92px) clamp(20px, 5vw, 72px);
}
.section-head {
  max-width: 880px;
  margin-bottom: 30px;
}
.section-head h2,
.workflow h2,
.compliance-panel h2,
.final-cta h2,
.article h1 {
  margin: 0;
  color: var(--ink-strong);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.14;
  letter-spacing: 0;
}
.section-head p,
.workflow p,
.compliance-panel p,
.final-cta p,
.article p {
  color: var(--muted);
}

.category-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.category-links a {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: white;
  color: #344054;
  padding: 8px 13px;
  font-size: 14px;
  font-weight: 900;
}
.category-links a:hover {
  border-color: rgba(18, 91, 255, .34);
  background: #eef4ff;
  color: var(--blue-deep);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}
.service-card,
.card {
  display: flex;
  flex-direction: column;
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .94);
  padding: 26px;
  box-shadow: 0 10px 34px rgba(15, 23, 42, .045);
}
.service-card.featured {
  background: linear-gradient(180deg, #ffffff, #f4f8ff);
  border-color: rgba(18, 91, 255, .24);
}
.tag,
.card .tag {
  width: fit-content;
  border-radius: 999px;
  background: #eaf2ff;
  color: var(--blue-deep);
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 900;
}
.service-card h3,
.card h3 {
  margin: 18px 0 10px;
  color: var(--ink-strong);
  font-size: 26px;
  line-height: 1.24;
}
.service-card p,
.card p {
  color: var(--muted);
  margin: 0;
}
.service-card ul {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.service-card li {
  position: relative;
  padding-left: 18px;
  color: #344054;
  font-weight: 700;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}
.service-card a,
.card a {
  margin-top: auto;
  color: var(--blue);
  font-weight: 900;
}

.workflow {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(320px, 1.15fr);
  gap: clamp(24px, 5vw, 58px);
  align-items: center;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(18, 91, 255, .2), transparent 36%),
    var(--slate);
  color: white;
  padding: clamp(30px, 6vw, 62px);
}
.workflow .eyebrow,
.compliance-panel .eyebrow { color: #8fd9ff; }
.workflow h2,
.compliance-panel h2 { color: white; }
.workflow p,
.compliance-panel p { color: #d7dfec; }
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.steps span {
  display: grid;
  align-content: space-between;
  min-height: 96px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 8px;
  background: rgba(255, 255, 255, .08);
  padding: 16px;
  font-size: 18px;
  font-weight: 900;
}
.steps b {
  color: #8fd9ff;
  font-size: 12px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.trust-grid article {
  border-top: 3px solid var(--teal);
  border-radius: 8px;
  background: white;
  padding: 22px;
}
.trust-grid article:nth-child(2) { border-top-color: var(--blue); }
.trust-grid article:nth-child(3) { border-top-color: var(--amber); }
.trust-grid article:nth-child(4) { border-top-color: var(--green); }
.trust-grid strong {
  display: block;
  color: var(--ink-strong);
  font-size: 20px;
  margin-bottom: 8px;
}
.trust-grid p { color: var(--muted); margin: 0; }

.compliance-section { padding-top: 0; }
.compliance-panel {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, 1.05fr);
  gap: 32px;
  align-items: center;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(15, 159, 154, .22), transparent 44%),
    #0d2a3a;
  color: white;
  padding: clamp(30px, 6vw, 62px);
}
.check-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.check-list li {
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 8px;
  background: rgba(255, 255, 255, .08);
  padding: 14px 16px;
  color: #f5f9ff;
  font-weight: 800;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.article-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 22px;
}
.article-item h3 {
  margin: 0 0 8px;
  color: var(--ink-strong);
  font-size: 20px;
  line-height: 1.35;
}
.article-item p { color: var(--muted); margin: 0; }

.final-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  margin: 0 clamp(20px, 5vw, 72px) clamp(54px, 8vw, 92px);
  border: 1px solid rgba(18, 91, 255, .16);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff, #eef6ff);
  padding: clamp(28px, 5vw, 54px);
}
.final-cta p { max-width: 760px; margin-bottom: 0; }
.final-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.card { min-height: 260px; }

.article {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) 20px;
}
.article-body {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: clamp(24px, 5vw, 56px);
}
.article-summary {
  margin: 18px 0 30px;
  border-left: 4px solid var(--teal);
  background: #f6fbfb;
  padding: 16px 18px;
  color: var(--ink);
  font-size: 18px;
}
.article-body h2 {
  margin: 34px 0 12px;
  color: var(--ink-strong);
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.22;
}
.article-body h3 {
  margin: 26px 0 10px;
  color: var(--ink-strong);
  font-size: 22px;
  line-height: 1.3;
}
.article-body ul,
.article-body ol {
  display: grid;
  gap: 8px;
  padding-left: 1.25em;
  color: #344054;
}
.article-body li::marker { color: var(--blue-deep); }
.article-body blockquote {
  margin: 24px 0;
  border-left: 4px solid var(--amber);
  background: #fff8ed;
  padding: 16px 18px;
  color: #4b5563;
}
.about-narrative {
  display: grid;
  gap: 28px;
}
.about-intro {
  border-left: 4px solid var(--blue);
  background: #f7fbff;
  padding: clamp(20px, 4vw, 30px);
}
.about-intro p {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
}
.about-section h2 {
  margin: 0 0 12px;
  color: var(--ink-strong);
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.2;
}
.about-section p { margin: 0 0 12px; }
.about-section p:last-child { margin-bottom: 0; }
.about-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.about-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
  padding: 18px;
}
.about-card strong {
  display: block;
  color: var(--ink-strong);
  font-size: 18px;
  margin-bottom: 6px;
}
.about-card span {
  color: var(--muted);
  font-size: 14px;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0 10px;
}
.about-stats div {
  border: 1px solid rgba(18, 91, 255, .18);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f2f7ff);
  padding: 18px;
}
.about-stats strong {
  display: block;
  color: var(--blue-deep);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
}
.about-stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 800;
}
.about-quote {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f172a;
  color: white;
  padding: clamp(22px, 4vw, 34px);
}
.about-quote p {
  color: #e5edf8;
  font-size: 18px;
}
.about-quote small { color: #aab8cc; }
.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.about-links a {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fbfdff;
  color: var(--blue-deep);
  padding: 8px 13px;
  font-weight: 900;
}
.category-head { max-width: 900px; }
.category-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.muted-item {
  background: #fbfdff;
  border-style: dashed;
}
.content-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 34px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.page-related {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
}
.page-related strong {
  color: var(--ink-strong);
  font-size: 14px;
}
.page-related a {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fbfdff;
  color: var(--blue-deep);
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 900;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 40px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: white;
  color: var(--muted);
}
.site-footer strong { color: var(--ink); }
.footer-legal {
  margin: 8px 0 0;
  font-size: 13px;
}
.footer-legal a {
  color: inherit;
  text-decoration: none;
}
.footer-legal a:hover {
  color: var(--ink);
  text-decoration: underline;
}

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { min-height: 480px; }
  .proof-metrics { grid-template-columns: 1fr; }
  .service-grid,
  .trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
  .nav {
    width: 100%;
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .nav a { min-width: max-content; }
  .proof-band,
  .metrics-grid,
  .about-card-grid,
  .about-stats,
  .workflow,
  .compliance-panel,
  .final-cta,
  .site-footer { grid-template-columns: 1fr; }
  .final-actions { justify-content: flex-start; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  h1 {
    max-width: 10ch;
    font-size: 42px;
  }
  .hero {
    padding-top: 42px;
    gap: 28px;
  }
  .hero-text { font-size: 16px; }
  .hero-actions .cta,
  .final-actions .cta {
    width: 100%;
  }
  .hero-visual { min-height: 360px; }
  .floating-note {
    position: relative;
    inset: auto;
    width: auto;
    margin: 10px 0 0;
  }
  .hero-visual picture {
    position: relative;
    height: 280px;
  }
  .hero-visual::after { display: none; }
  .proof-band,
  .service-grid,
  .trust-grid,
  .article-list,
  .steps,
  .card-grid { grid-template-columns: 1fr; }
  .proof-band div { min-height: auto; }
  .service-card,
  .card { min-height: auto; }
  .section-head h2,
  .workflow h2,
  .compliance-panel h2,
  .final-cta h2,
  .article h1 {
    font-size: 30px;
  }
}