/* Shared site chrome for report pages */
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
}

:root {
  --site-ink: #17202a;
  --site-muted: #65717f;
  --site-line: #dbe3ec;
  --site-paper: #fbf8f1;
  --site-navy: #0f2742;
  --site-blue: #1f6f9f;
  --site-aqua: #4bb6b7;
  --site-gold: #c7953c;
  --site-shadow: 0 24px 70px rgba(15, 39, 66, 0.14);
}

.unified-header {
  position: sticky;
  top: 0;
  z-index: 200;
  border-bottom: 1px solid rgba(219, 227, 236, 0.78);
  background: rgba(251, 248, 241, 0.92);
  backdrop-filter: blur(18px);
}

.header-container {
  width: min(1180px, calc(100% - 40px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.site-brand {
  color: var(--navy, var(--site-navy));
  font-weight: 900;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.site-brand .brand-line,
.site-brand .brand-separator {
  display: inline;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  color: #2f3c4a;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--blue, var(--site-blue));
  background: rgba(31, 111, 159, 0.1);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(219, 227, 236, 0.9);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--navy, var(--site-navy));
  background: rgba(255, 255, 255, 0.92);
  font-weight: 900;
  cursor: pointer;
}

.unified-footer {
  padding: 30px 0;
  color: white;
  background: #091421;
}

.footer-container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-brand {
  display: grid;
  gap: 4px;
}

.footer-brand span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.footer-brand strong {
  color: white;
  font-size: 18px;
  letter-spacing: 0.04em;
}

.footer-signature {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 10px 14px;
  border: 1px solid rgba(191, 232, 232, 0.22);
  border-radius: 999px;
  color: #dff6f6;
  background: rgba(255, 255, 255, 0.06);
}

.signature-icon {
  color: var(--gold, var(--site-gold));
  font-size: 12px;
}

.footer-signature em {
  font-style: normal;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.footer-contact {
  display: grid;
  gap: 3px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  font-weight: 700;
}

.footer-contact a {
  color: #bfe8e8;
  text-decoration: none;
}

.footer-contact a:hover {
  color: #fff;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-links a {
  color: #bfe8e8;
  font-weight: 800;
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
}

@media (max-width: 980px) {
  .unified-header .header-container {
    min-height: 58px;
    padding: 8px 0;
    align-items: center;
    flex-wrap: nowrap;
    gap: 10px;
    position: relative;
  }

  .unified-header .site-brand {
    flex: 1 1 auto;
    width: auto;
    min-width: 0;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: clamp(12px, 3.2vw, 15px);
    line-height: 1.2;
  }

  .unified-header .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-height: 34px;
    padding: 0 12px;
    font-size: 13px;
  }

  .unified-header .site-nav.nav-links {
    position: absolute;
    inset: calc(100% + 8px) 0 auto;
    order: initial;
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin-left: 0;
    padding: 10px;
    border: 1px solid rgba(219, 227, 236, 0.95);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--site-shadow);
  }

  body.nav-open .unified-header .site-nav.nav-links {
    display: flex;
  }

  .unified-header .site-nav.nav-links a {
    justify-content: flex-start;
    min-height: 38px;
    padding: 0 12px;
    font-size: 13px;
  }

  .unified-footer {
    padding: 22px 0;
  }

  .unified-footer .footer-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .unified-footer .footer-brand span {
    font-size: 12px;
    line-height: 1.45;
  }

  .unified-footer .footer-brand strong {
    font-size: 16px;
  }

  .unified-footer .footer-signature {
    max-width: 100%;
    margin-left: 0;
    padding: 8px 11px;
    border-radius: 16px;
    align-items: flex-start;
  }

  .unified-footer .footer-signature em {
    font-size: clamp(12px, 3.1vw, 14px);
    line-height: 1.45;
    letter-spacing: 0;
  }

  .unified-footer .footer-contact {
    font-size: 12px;
    line-height: 1.45;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .unified-header .site-brand {
    display: grid;
    gap: 2px;
    line-height: 1.18;
    white-space: normal;
    text-overflow: clip;
  }

  .site-brand .brand-line {
    display: block;
    white-space: nowrap;
  }

  .site-brand .brand-separator {
    display: none;
  }

  .unified-footer .footer-links a {
    font-size: 13px;
  }
}

@media (max-width: 420px) {
  .unified-header .header-container,
  .unified-footer .footer-container {
    width: min(100% - 22px, 1180px);
  }

  .unified-header .site-brand {
    font-size: 12px;
  }

  .unified-header .nav-toggle {
    padding: 0 10px;
  }
}

@media (max-width: 360px) {
  .unified-header .site-brand {
    font-size: 11px;
  }
}

/* Shared report typography scale */
:root {
  --report-h1: clamp(42px, 6vw, 76px);
  --report-h2: clamp(30px, 4vw, 48px);
  --report-h3: 21px;
  --report-h4: 18px;
  --report-lead: 19px;
  --report-body: 16px;
  --report-small: 14px;
  --report-eyebrow: 13px;
}

h1 {
  font-size: var(--report-h1);
  line-height: 1.05;
  letter-spacing: -0.065em;
}

h2,
.section-title h2,
.section-heading h2,
.summary-card h2 {
  font-size: var(--report-h2);
  line-height: 1.16;
  letter-spacing: -0.045em;
}

h3,
.card h3,
.step h3,
.track-card h3,
.solution-card h3,
.route-card h3,
.guide-card h3 {
  font-size: var(--report-h3);
  line-height: 1.35;
}

h4 {
  font-size: var(--report-h4);
  line-height: 1.35;
}

p,
li {
  font-size: var(--report-body);
}

.lead,
.hero-lead,
.section-heading p,
.intro-copy p,
.summary-card p,
.guide-page .hero-lead {
  font-size: var(--report-lead);
  line-height: 1.82;
}

.eyebrow {
  font-size: var(--report-eyebrow);
  line-height: 1.35;
}

.part-card strong {
  font-size: 22px;
  line-height: 1.2;
}

.part-card em,
.nav-links a,
.site-nav a {
  font-size: var(--report-small);
}

@media (max-width: 980px) {
  :root {
    --report-h1: clamp(38px, 9vw, 58px);
    --report-h2: clamp(28px, 6vw, 42px);
    --report-h3: 20px;
    --report-lead: 17px;
  }
}

@media (max-width: 768px) {
  :root {
    --report-h1: clamp(34px, 11vw, 52px);
    --report-h2: clamp(26px, 8vw, 38px);
    --report-h3: 19px;
    --report-h4: 17px;
    --report-lead: 16px;
    --report-body: 15px;
    --report-small: 13px;
    --report-eyebrow: 12px;
  }

  h1,
  h2,
  .section-title h2,
  .section-heading h2,
  .summary-card h2 {
    letter-spacing: -0.04em;
  }

  .lead,
  .hero-lead,
  .section-heading p,
  .intro-copy p,
  .summary-card p,
  .guide-page .hero-lead {
    line-height: 1.75;
  }

  .part-card strong {
    font-size: 21px;
  }
}

@media (max-width: 420px) {
  :root {
    --report-h1: 32px;
    --report-h2: 25px;
    --report-h3: 18px;
    --report-lead: 15px;
    --report-body: 14px;
  }
}


/* Shared hero opening-page typography */
.hero .eyebrow,
.guide-hero .eyebrow {
  font-size: var(--report-eyebrow);
  line-height: 1.35;
}

.hero .lead,
.hero .hero-lead,
.guide-hero .hero-lead {
  font-size: var(--report-lead);
  line-height: 1.82;
}

.hero .part-card span {
  font-size: var(--report-eyebrow);
  line-height: 1.25;
}

.hero .part-card em {
  font-size: var(--report-small);
  line-height: 1.45;
}

.hero-actions a,
.guide-actions a,
.primary-action,
.secondary-action,
.btn,
.detail-link {
  font-size: var(--report-small);
  line-height: 1.25;
}

.hero-panel .panel-title,
.hero-panel .panel-kicker,
.visual-panel .panel-title {
  font-size: var(--report-eyebrow);
  line-height: 1.35;
}

.workflow-label strong,
.guide-note strong {
  font-size: var(--report-h3);
  line-height: 1.3;
}

@media (max-width: 768px) {
  .hero .lead,
  .hero .hero-lead,
  .guide-hero .hero-lead {
    line-height: 1.75;
  }

  .hero-actions a,
  .guide-actions a,
  .primary-action,
  .secondary-action,
  .btn,
  .detail-link {
    font-size: var(--report-small);
  }
}

/* Project attribution primitives: content stays page-specific. */
.project-attribution,
.project-signature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.project-attribution[data-client]::before {
  content: attr(data-client);
}

.project-attribution[data-delivery]::after {
  content: " × " attr(data-delivery);
}

.project-role-label {
  color: var(--site-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}