:root {
  --ink: #142033;
  --muted: #5d6b7d;
  --line: #dfe7ef;
  --soft: #f5f7fb;
  --blue: #0b6bcb;
  --blue-dark: #084f99;
  --green: #15a46a;
  --gold: #b9821d;
  --dark: #101828;
  --page-pad: max(20px, calc((100vw - 1180px) / 2));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}
a { color: inherit; text-decoration: none; }
p { line-height: 1.75; }
img { max-width: 100%; display: block; }

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  padding: 10px var(--page-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid rgba(20,32,51,.08);
  backdrop-filter: blur(16px);
}
.brand {
  min-width: 252px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--dark);
  color: #fff;
  font-weight: 900;
  letter-spacing: 0;
}
.brand strong { display: block; font-size: 18px; line-height: 1.2; }
.brand em {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  line-height: 1.35;
}
.nav nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  font-weight: 800;
}
.nav nav a { color: #253348; }
.nav nav a:hover { color: var(--blue); }
.nav-cta {
  min-height: 38px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  background: var(--blue);
  color: #fff !important;
}

.hero {
  padding: 54px var(--page-pad) 42px;
  display: grid;
  grid-template-columns: minmax(0, .96fr) minmax(420px, 1.04fr);
  align-items: center;
  gap: 38px;
  background: #f6f8fb;
  border-bottom: 1px solid #e7edf5;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
}
.hero h1, .page-hero h1 {
  margin: 0;
  max-width: 760px;
  color: #111827;
  font-size: 58px;
  line-height: 1.08;
  letter-spacing: 0;
}
.hero h1 span {
  display: block;
}
.hero-copy > p:not(.eyebrow), .page-hero > p:not(.eyebrow) {
  max-width: 700px;
  color: var(--muted);
  font-size: 18px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  margin: 28px 0 22px;
  flex-wrap: wrap;
}
.btn {
  min-height: 46px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 900;
}
.btn.primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 12px 28px rgba(11,107,203,.22);
}
.btn.primary:hover, .nav-cta:hover { background: var(--blue-dark); }
.btn.ghost {
  border: 1px solid #b9c6d7;
  color: #1e2d42;
  background: #fff;
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 680px;
}
.hero-metrics span {
  min-height: 82px;
  padding: 14px;
  border: 1px solid rgba(20,32,51,.12);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  line-height: 1.45;
}
.hero-metrics strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 21px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 680px;
}
.hero-badges span {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border-radius: 8px;
  background: #eef7ff;
  color: #164a7a;
  border: 1px solid #cfe5fb;
  font-size: 13px;
  font-weight: 900;
}
.hero-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid #d7e0ea;
  background: #fff;
  box-shadow: 0 22px 60px rgba(16,24,40,.14);
}
.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.hero-insight {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 14px 16px;
  border-radius: 8px;
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(255,255,255,.75);
  box-shadow: 0 14px 36px rgba(16,24,40,.14);
}
.hero-insight strong { display: block; margin-bottom: 5px; }
.hero-insight span { color: var(--muted); font-size: 14px; line-height: 1.55; }

.proof-strip {
  padding: 18px var(--page-pad);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: #fff;
  border-bottom: 1px solid #e7edf5;
}
.proof-strip div {
  min-height: 86px;
  padding: 18px 20px;
  background: #f8fafc;
  border: 1px solid #edf1f7;
  border-radius: 8px;
}
.proof-strip b { display: block; margin-bottom: 6px; color: var(--ink); }
.proof-strip span { color: var(--muted); line-height: 1.55; }

.credibility-section {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(440px, 1.12fr);
  align-items: center;
  gap: 34px;
  background: #fff;
}
.credibility-copy p:not(.eyebrow) {
  color: var(--muted);
  font-size: 17px;
}
.credibility-copy h2,
.decision-copy h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.18;
  letter-spacing: 0;
}
.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  margin-top: 8px;
  color: var(--blue);
  font-weight: 900;
}
.credential-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.credential-board div {
  min-height: 154px;
  padding: 22px;
  border: 1px solid #d8e4f2;
  border-radius: 8px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
  box-shadow: 0 18px 42px rgba(16,24,40,.08);
}
.credential-board strong {
  display: block;
  margin-bottom: 12px;
  color: #10243f;
  font-size: 24px;
  line-height: 1.2;
}
.credential-board span {
  color: var(--muted);
  line-height: 1.65;
}

.section, .dark-section, .lead-band, .footer { padding: 64px var(--page-pad); }
.section { background: #fff; }
.section-head {
  max-width: 820px;
  margin-bottom: 28px;
}
.section-head h2, .lead-band h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.18;
  letter-spacing: 0;
}
.section-head p:not(.eyebrow) { color: var(--muted); font-size: 17px; }
.split {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  max-width: none;
}
.split a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  color: var(--blue);
  font-weight: 900;
  white-space: nowrap;
}
.pain-grid, .service-grid, .case-grid, .reason-grid, .ip-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.pain-grid div {
  min-height: 154px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
}
.pain-grid b { display: block; margin-bottom: 10px; font-size: 20px; }
.pain-grid span { color: var(--muted); line-height: 1.7; }
.reason-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.reason-grid div {
  min-height: 230px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
}
.reason-grid span {
  color: var(--gold);
  font-weight: 900;
}
.reason-grid b {
  display: block;
  margin: 16px 0 10px;
  font-size: 20px;
  line-height: 1.25;
}
.reason-grid p {
  margin: 0;
  color: var(--muted);
}
.service-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.service-card, .case-card, .article-list a {
  min-height: 254px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.service-card:hover, .case-card:hover, .article-list a:hover {
  transform: translateY(-3px);
  border-color: #9cc3ed;
  box-shadow: 0 20px 50px rgba(16,24,40,.1);
}
.service-card span { color: var(--gold); font-weight: 900; }
.service-card h3, .case-card h3 {
  margin: 16px 0 10px;
  font-size: 22px;
  line-height: 1.25;
}
.service-card p, .case-card p { color: var(--muted); }
.service-card b, .case-card b {
  display: inline-block;
  margin-top: 12px;
  color: var(--blue);
}

.dark-section {
  background: var(--dark);
  color: #fff;
}
.dark-section .eyebrow { color: #79c5ff; }
.dark-section .section-head p:not(.eyebrow) { color: #c9d4e5; }
.geo-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 8px;
  overflow: hidden;
}
.geo-list div {
  min-height: 220px;
  padding: 26px;
  background: #111f33;
}
.geo-list strong { color: #79c5ff; }
.geo-list h3 { margin: 14px 0 8px; }
.geo-list p { color: #c9d4e5; }

.case-grid.wide { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.case-card span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border-radius: 8px;
  background: #eef7ff;
  color: var(--blue);
  font-weight: 900;
}
.case-proof {
  padding-top: 28px;
  padding-bottom: 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  background: #f7fafc;
}
.case-proof div {
  padding: 22px;
  border: 1px solid #dfe7ef;
  border-radius: 8px;
  background: #fff;
}
.case-proof strong {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
}
.case-proof span {
  color: var(--muted);
  line-height: 1.6;
}
.ip-section {
  background: #f7fafc;
}
.ip-grid div {
  min-height: 172px;
  padding: 24px;
  border: 1px solid #dfe7ef;
  border-radius: 8px;
  background: #fff;
}
.ip-grid b {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
}
.ip-grid span {
  color: var(--muted);
  line-height: 1.7;
}
.decision-section {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  gap: 34px;
  align-items: center;
  background: #fff;
}
.decision-copy p:not(.eyebrow) {
  color: var(--muted);
  font-size: 17px;
}
.decision-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.decision-list span {
  min-height: 62px;
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border-radius: 8px;
  background: #eef7ff;
  color: #173a5d;
  border: 1px solid #cfe5fb;
  font-weight: 900;
}
.process ol {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
  counter-reset: step;
}
.process li {
  min-height: 166px;
  padding: 22px;
  border-left: 4px solid var(--green);
  background: var(--soft);
  border-radius: 8px;
}
.process b { display: block; margin-bottom: 10px; font-size: 20px; }
.process span { color: var(--muted); line-height: 1.7; }

.page-hero {
  padding: 68px var(--page-pad);
  background: #f6f8fb;
  border-bottom: 1px solid #e7edf5;
}
.page-hero h1 { font-size: 48px; }
.split-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 42px;
}
.feature-list { display: grid; gap: 14px; }
.feature-list div {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.feature-list b { display: block; margin-bottom: 6px; font-size: 20px; }
.feature-list span { color: var(--muted); }
.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-grid span {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 8px;
  background: #edf6ff;
  color: #164a7a;
  font-weight: 900;
}
.tag-grid.small span { min-height: 32px; padding: 0 10px; }
.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 12px;
  background: #fff;
}
.faq summary {
  cursor: pointer;
  font-size: 20px;
  font-weight: 900;
}
.faq p { color: var(--muted); margin-bottom: 0; }
.article-list {
  display: grid;
  gap: 14px;
}
.article-list a { min-height: auto; }
.article-list h2 { margin: 0 0 10px; font-size: 26px; line-height: 1.3; }
.article-list p { color: var(--muted); }
.article-list span { color: var(--blue); font-weight: 900; }
.article {
  max-width: 900px;
  margin: 0 auto;
  padding: 72px var(--page-pad);
}
.article h1 {
  margin: 0 0 20px;
  font-size: 48px;
  line-height: 1.12;
}
.article h2 { margin-top: 36px; font-size: 28px; }
.article .lead { font-size: 20px; color: var(--muted); }

.contact-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 32px;
  align-items: start;
}
.contact-proof {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}
.contact-proof b {
  display: block;
  font-size: 20px;
}
.contact-proof span {
  display: block;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid #dfe7ef;
  background: #fbfdff;
  color: var(--muted);
  line-height: 1.55;
}
.lead-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 460px;
  gap: 38px;
  align-items: center;
  background: #eef6ff;
  border-top: 1px solid #dceafa;
}
.lead-band p { color: var(--muted); }
.lead-form {
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 48px rgba(16,24,40,.08);
}
.lead-form.large { padding: 28px; }
.lead-form input, .lead-form select, .lead-form textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #fff;
  outline: none;
}
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(11,107,203,.12);
}
.lead-form textarea { min-height: 96px; resize: vertical; }
.lead-form button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  padding: 0 18px;
  background: var(--green);
  color: #fff;
  font-weight: 900;
  cursor: pointer;
}
.lead-form button:disabled { opacity: .72; cursor: wait; }
.lead-form small { min-height: 18px; color: var(--blue); }
.footer {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  background: #0b1220;
  color: #e8eef7;
}
.footer > div { max-width: 620px; }
.footer p { color: #b8c4d4; }
.footer a { color: #fff; }
.float-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  display: grid;
  gap: 10px;
}
.float-cta a {
  min-height: 42px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-weight: 900;
  box-shadow: 0 12px 30px rgba(11,107,203,.28);
}
.float-cta a + a { background: var(--green); }

@media (max-width: 1180px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .brand { min-width: 0; }
  .nav nav { justify-content: flex-start; }
  .hero { grid-template-columns: 1fr; }
  .hero-media { max-width: 820px; }
  .service-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .proof-strip, .reason-grid, .geo-list, .process ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lead-band, .contact-grid, .split-layout, .credibility-section, .decision-section { grid-template-columns: 1fr; }
  .credential-board { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  :root { --page-pad: 18px; }
  .nav { min-height: auto; gap: 12px; }
  .brand em { display: none; }
  .nav nav { gap: 8px; font-size: 13px; }
  .nav nav a:not(.nav-cta) { padding: 6px 0; }
  .hero { padding-top: 34px; }
  .hero h1, .page-hero h1, .article h1 { font-size: 38px; }
  .section-head h2, .lead-band h2 { font-size: 30px; }
  .hero-metrics, .proof-strip, .pain-grid, .reason-grid, .service-grid, .case-grid, .case-grid.wide, .geo-list, .process ol, .credential-board, .case-proof, .ip-grid, .decision-list {
    grid-template-columns: 1fr;
  }
  .split {
    align-items: flex-start;
    flex-direction: column;
  }
  .section, .dark-section, .lead-band, .footer, .page-hero { padding-top: 48px; padding-bottom: 48px; }
  .hero-insight {
    position: static;
    border-radius: 0;
    box-shadow: none;
  }
  .footer { flex-direction: column; }
  .float-cta { display: none; }
}