:root {
  --paper: #f5f7fb;
  --paper-raised: #ffffff;
  --paper-blue: #e9f0fd;
  --ink: #101a2c;
  --ink-soft: #4b5d78;
  --navy: #0f1c31;
  --navy-raised: #162744;
  --blue: #2254c7;
  --blue-bright: #2864e8;
  --blue-soft: #91b6ff;
  --line: #d7dfeb;
  --line-strong: #aebbd0;
  --dark-line: #344763;
  --focus: #2864e8;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Arial, sans-serif;
  --gutter: clamp(20px, 4.2vw, 68px);
  --section: clamp(56px, 6.5vw, 94px);
  --header-h: 72px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 28px); background: var(--paper); }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
body, button { font-family: var(--font); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { text-decoration-color: currentColor; }
button { color: inherit; }
::selection { background: #b9d0ff; color: #081329; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.responsibilities :focus-visible, .detail-footer :focus-visible { outline-color: var(--blue-soft); }
.detail-wrap { width: 100%; max-width: 1540px; margin-inline: auto; padding-inline: max(var(--gutter), env(safe-area-inset-left)); }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 12px; padding: 12px 18px; border-radius: 8px; background: var(--paper-raised); color: var(--ink); box-shadow: 0 8px 30px #07132933; transform: translateY(-160%); transition: transform 160ms var(--ease); }
.skip-link:focus { transform: translateY(0); }

/* Shared header */
.detail-header { position: sticky; z-index: 50; top: 0; display: flex; align-items: center; min-height: var(--header-h); padding: 9px max(18px, var(--gutter)); border-bottom: 1px solid #dce3ee; background: #f8fafff2; box-shadow: 0 8px 28px #10203b0e; backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%); }
.detail-logo { width: clamp(132px, 13vw, 174px); flex: 0 0 auto; border-radius: 6px; }
.detail-logo img { filter: brightness(0) saturate(100%); opacity: .9; width: 100%; height: 46px; object-fit: contain; object-position: left center; }
.detail-nav { display: flex; align-items: center; justify-content: center; gap: 2px; margin-inline: auto; }
.detail-nav > a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px clamp(8px, 1vw, 14px); border-radius: 9px; color: #35445b; font-size: clamp(12.5px, 1vw, 14px); font-weight: 520; text-decoration: none; white-space: nowrap; transition: color 160ms var(--ease), background-color 160ms var(--ease); }
.detail-nav > a:hover, .detail-nav > a[aria-current="page"] { background: #e8eef8; color: #173f96; }
.detail-nav > a[aria-current="page"] { box-shadow: inset 0 -2px var(--blue); }
.header-tools { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.language-switch { display: flex; align-items: center; color: #66758b; font-size: 12px; }
.language-switch a { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; border-radius: 8px; text-decoration: none; }
.language-switch a:hover { color: var(--blue); }
.language-switch a[aria-current="true"] { color: var(--ink); font-weight: 650; }
.header-inquiry, .nav-inquiry { align-items: center; justify-content: center; min-height: 46px; padding: 10px 18px; border-radius: 999px; background: var(--blue); color: #fff; font-size: 13px; font-weight: 550; text-decoration: none; white-space: nowrap; transition: background-color 160ms var(--ease); }
.header-inquiry { display: inline-flex; }
.header-inquiry:hover, .nav-inquiry:hover { background: #1944a8 !important; color: #fff !important; }
.nav-inquiry { display: none !important; }
.nav-toggle { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; padding: 0; border: 1px solid #91a4c3; border-radius: 9px; background: transparent; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 18px; height: 1px; background: currentColor; transition: transform 180ms var(--ease), opacity 180ms var(--ease); }
.nav-toggle span { position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { transform: translateY(-5px); }
.nav-toggle span::after { transform: translateY(5px); }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: rotate(-45deg); }

/* Hero and page index */
.detail-hero { overflow: hidden; padding: clamp(38px, 4.5vw, 64px) 0 clamp(56px, 6vw, 86px); background: var(--paper); }
.hero-layout { display: grid; grid-template-columns: minmax(0, .88fr) minmax(480px, 1.12fr); align-items: center; gap: clamp(52px, 7vw, 120px); }
.hero-copy { max-width: 690px; }
.breadcrumb { margin-bottom: clamp(24px, 3vw, 40px); }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin: 0; padding: 0; list-style: none; color: #66758b; font-size: 13px; }
.breadcrumb li + li::before { content: "/"; margin-right: 9px; color: #9aa8ba; }
.breadcrumb a { min-height: 44px; display: inline-flex; align-items: center; }
.hero-copy h1 { max-width: 12.5ch; margin: 0; color: var(--ink); font-size: clamp(2.75rem, 5.1vw, 5rem); font-weight: 450; letter-spacing: -.035em; line-height: 1.06; text-wrap: balance; }
.hero-copy > p { max-width: 65ch; margin: 30px 0 0; color: var(--ink-soft); font-size: clamp(17px, 1.45vw, 21px); line-height: 1.62; }
.primary-action, .close-action { display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 54px; margin-top: 34px; padding: 14px 22px; border-radius: 999px; background: var(--blue-bright); color: #fff; font-size: 15px; font-weight: 550; text-decoration: none; transition: background-color 160ms var(--ease), transform 160ms var(--ease); }
.primary-action:hover, .close-action:hover { background: #1f51c3; transform: translateY(-1px); }
.primary-action > span, .close-action > span, .text-link > span { font-size: 0; }
.primary-action > span::before, .close-action > span::before, .text-link > span::before, .next-grid i::before { content: ""; display: block; width: 12px; height: 12px; border-top: 1.5px solid currentColor; border-right: 1.5px solid currentColor; }
.primary-action > span::after, .close-action > span::after, .text-link > span::after, .next-grid i::after { content: ""; display: block; width: 16px; height: 1.5px; margin-top: -7px; background: currentColor; transform: rotate(-45deg); transform-origin: right center; }

.page-index { border-block: 1px solid var(--line); background: #fff; }
.page-index .detail-wrap { display: flex; align-items: center; min-height: 90px; gap: clamp(24px, 5vw, 72px); }
.page-index p { flex: 0 0 auto; margin: 0; color: #6a7890; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.page-index ul { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 0; padding: 0; list-style: none; }
.page-index a { display: inline-flex; align-items: center; min-height: 44px; color: #173f96; font-size: 14px; font-weight: 580; }

/* Authored coordination diagrams */
.coordination { position: relative; min-width: 0; margin: 0; padding: clamp(28px, 4vw, 56px); border: 1px solid #2f4668; border-radius: 20px; background: var(--navy); color: #f4f7fd; box-shadow: 0 28px 70px -42px #06142e88; }
.coordination ul, .coordination ol { margin: 0; padding: 0; list-style: none; }
.coordination strong { font-weight: 620; }
.coordination span { color: #b8c8e0; }
.coordination figcaption { color: #dfe9f8; }

.coordination--products > figcaption { display: flex; align-items: center; justify-content: center; min-height: 74px; padding: 16px; border: 1px solid #5377b6; border-radius: 12px; background: #17376b; font-size: 18px; font-weight: 620; text-align: center; }
.product-paths { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding-top: 56px !important; }
.product-paths::before { content: ""; position: absolute; top: 27px; left: 16.66%; right: 16.66%; height: 1px; background: #6f91ca; }
.product-paths li { position: relative; display: flex; flex-direction: column; justify-content: center; min-height: 112px; padding: 18px; border: 1px solid var(--dark-line); border-radius: 12px; background: #13233d; text-align: center; }
.product-paths li::before { content: ""; position: absolute; top: -29px; left: 50%; width: 1px; height: 28px; background: #6f91ca; }
.product-paths strong { font-size: 15px; }
.product-paths span { margin-top: 5px; font-size: 12px; }
.product-foundation { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 38px !important; border-block: 1px solid #405675; }
.product-foundation li { padding: 13px 8px; color: #9fbfff; font-size: 11px; font-weight: 650; letter-spacing: .05em; text-align: center; text-transform: uppercase; }
.product-foundation li + li { border-left: 1px solid #405675; }

.payment-flow { display: grid; gap: 24px; }
.payment-flow li { position: relative; display: grid; grid-template-columns: 110px 1fr; align-items: center; min-height: 74px; padding: 14px 18px; border: 1px solid #405675; border-radius: 12px; background: #13233d; }
.payment-flow li:not(:last-child)::after { content: ""; position: absolute; left: 54px; bottom: -25px; width: 1px; height: 24px; background: #80a6e6; }
.payment-flow strong { color: #fff; }
.payment-flow span { padding-left: 18px; border-left: 1px solid #405675; font-size: 13px; }
.payment-rails { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 30px; }
.payment-rails div { display: flex; justify-content: space-between; gap: 14px; padding: 13px 15px; border-top: 1px solid #6b8dc7; color: #fff; font-size: 12px; }

.onboarding-flow { display: grid; grid-template-columns: 1fr 1fr; gap: 42px 26px; }
.onboarding-flow li { position: relative; min-height: 130px; padding: 23px; border: 1px solid #405675; border-radius: 12px; background: #13233d; }
.onboarding-flow li::before { content: ""; display: block; width: 28px; height: 1px; margin-bottom: 30px; background: #8fb5fa; }
.onboarding-flow li:nth-child(odd)::after { content: ""; position: absolute; top: 50%; right: -27px; width: 26px; height: 1px; background: #6f91ca; }
.onboarding-flow strong, .onboarding-flow span { display: block; }
.onboarding-flow span { margin-top: 7px; font-size: 13px; }
.coordination--onboarding figcaption { margin-top: 36px; padding-top: 20px; border-top: 1px solid #405675; text-align: center; font-size: 14px; }

.coordination--automation { display: grid; grid-template-columns: minmax(0, .76fr) 46px minmax(0, 1.24fr); align-items: center; gap: 16px; }
.process-before, .process-after { min-width: 0; }
.process-before > strong, .process-after > strong { display: block; margin-bottom: 18px; color: #fff; font-size: 16px; }
.process-before ol { border-block: 1px solid #405675; }
.process-before li { padding: 12px 4px; color: #b8c8e0; font-size: 13px; }
.process-before li + li { border-top: 1px solid #263a57; }
.process-shift { display: flex; justify-content: center; }
.process-shift span { position: relative; width: 36px; height: 1px; background: #8fb5fa; }
.process-shift span::after { content: ""; position: absolute; top: -4px; right: 0; width: 8px; height: 8px; border-top: 1px solid #8fb5fa; border-right: 1px solid #8fb5fa; transform: rotate(45deg); }
.process-after ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.process-after li { min-height: 108px; padding: 15px; border: 1px solid #405675; border-radius: 10px; background: #13233d; }
.process-after strong, .process-after span { display: block; }
.process-after strong { font-size: 13px; }
.process-after span { margin-top: 6px; font-size: 11.5px; }
.coordination--automation figcaption { grid-column: 1 / -1; margin-top: 12px; padding-top: 20px; border-top: 1px solid #405675; color: #b8c8e0; font-size: 13px; text-align: right; }

.coordination--method { display: grid; grid-template-columns: 132px 1fr; gap: 26px; }
.method-roles { display: grid; grid-template-rows: repeat(3, 1fr); gap: 10px; }
.method-roles li { display: flex; align-items: center; padding: 15px; border: 1px solid #405675; border-radius: 9px; color: #dfe9f8; font-size: 12px; font-weight: 620; }
.method-stages { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.method-stages li { position: relative; display: flex; align-items: center; min-height: 74px; padding: 15px 18px 15px 32px; border: 1px solid #405675; border-radius: 9px; background: #13233d; color: #fff; font-size: 13px; font-weight: 580; }
.method-stages li::before { content: ""; position: absolute; left: 15px; width: 6px; height: 6px; border-radius: 50%; background: #8fb5fa; box-shadow: 0 0 0 5px #8fb5fa19; }

/* Service decisions */
.decision-heads { display: none; }
.stage-number { display: block; margin-bottom: 18px; color: var(--blue); font-size: 14px; font-variant-numeric: tabular-nums; }
.stage-result h3 { margin: 0 0 12px; color: #173f96; font-size: 13px; font-weight: 550; }
.stage-result p { max-width: 56ch; margin: 0; color: var(--ink-soft); line-height: 1.7; }
.stage-result h3:not(:first-child) { margin-top: 28px; }
.method-step .service-lead h2 { max-width: 18ch; }
.method-stages { counter-reset: stages; }
.method-stages li { counter-increment: stages; padding-left: 40px; }
.method-stages li::before { content: counter(stages, decimal-leading-zero); width: auto; height: auto; left: 12px; color: #91b6ff; background: transparent; box-shadow: none; font-size: 11px; }
.service-rows { background: var(--paper); }
.service-row { display: grid; grid-template-columns: minmax(260px, .78fr) minmax(0, 1.4fr); gap: clamp(54px, 8vw, 128px); padding-block: clamp(52px, 5.5vw, 80px); border-top: 1px solid var(--line-strong); scroll-margin-top: 0; }
.service-row:first-child { border-top: 0; }
.service-lead h2 { max-width: 13ch; margin: 0; color: var(--ink); font-size: clamp(2rem, 3.1vw, 3.4rem); font-weight: 450; letter-spacing: -.035em; line-height: 1.03; text-wrap: balance; }
.service-lead > p { max-width: 54ch; margin: 23px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.text-link { display: inline-flex; align-items: center; gap: 18px; min-height: 44px; margin-top: 27px; color: #173f96; font-size: 14px; font-weight: 650; text-decoration: none; }
.text-link > span::before, .next-grid i::before { width: 10px; height: 10px; }
.text-link > span::after, .next-grid i::after { width: 14px; margin-top: -6px; }
.service-decisions { margin: 0; }
.service-decisions > div { display: grid; grid-template-columns: minmax(120px, .36fr) minmax(0, 1fr); gap: 28px; padding: 26px 0; border-top: 1px solid var(--line); }
.service-decisions > div:last-child { border-bottom: 1px solid var(--line); }
.service-decisions dt { color: #173f96; font-size: 12px; font-weight: 720; letter-spacing: .07em; text-transform: uppercase; }
.service-decisions dd { max-width: 66ch; margin: 0; color: #35445b; font-size: 16px; line-height: 1.68; }

/* Responsibilities, FAQ and next routes */
.responsibilities { padding-block: var(--section); background: var(--navy); color: #f3f6fc; }
.roles-heading { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 8vw, 130px); align-items: end; }
.roles-heading h2, .faq-layout > h2, .next-routes h2, .contact-close h2 { margin: 0; font-size: clamp(2.25rem, 4vw, 4rem); font-weight: 450; letter-spacing: -.035em; line-height: 1.08; text-wrap: balance; }
.roles-heading h2 { max-width: 12ch; }
.roles-heading > p { max-width: 64ch; margin: 0; color: #b8c8e0; font-size: 18px; line-height: 1.65; }
.roles-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(36px, 4.5vw, 64px); border-block: 1px solid var(--dark-line); }
.roles-grid > div { min-height: 180px; padding: 32px clamp(22px, 3vw, 46px) 36px 0; }
.roles-grid > div + div { padding-left: clamp(22px, 3vw, 46px); border-left: 1px solid var(--dark-line); }
.roles-grid h3 { margin: 0; color: #9fbfff; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.roles-grid p { max-width: 46ch; margin: 22px 0 0; color: #dfe9f8; line-height: 1.7; }

.faq { padding-block: var(--section); background: #fff; }
.faq-layout { display: grid; grid-template-columns: minmax(250px, .72fr) minmax(0, 1.28fr); gap: clamp(60px, 10vw, 160px); }
.faq-layout > h2 { max-width: 9ch; color: var(--ink); }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list summary { display: grid; grid-template-columns: 1fr 44px; align-items: center; gap: 22px; min-height: 84px; padding: 18px 0; color: var(--ink); font-size: 17px; font-weight: 620; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary > span { position: relative; width: 44px; height: 44px; border: 1px solid #aebbd0; border-radius: 50%; }
.faq-list summary > span::before, .faq-list summary > span::after { content: ""; position: absolute; top: 50%; left: 50%; width: 14px; height: 1px; background: var(--ink); transform: translate(-50%, -50%); transition: transform 160ms var(--ease); }
.faq-list summary > span::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-list details[open] summary > span::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details > div { overflow: hidden; }
.faq-list details p { max-width: 68ch; margin: 0; padding: 0 64px 28px 0; color: var(--ink-soft); line-height: 1.7; }

.next-routes { padding: var(--section) 0; background: var(--paper-blue); }
.next-routes h2 { font-size: clamp(2rem, 3vw, 3.6rem); }
.next-grid { display: grid; grid-template-columns: 1fr 1fr; margin-top: 44px; border-block: 1px solid #b8c6dc; }
.next-grid a { position: relative; display: grid; grid-template-columns: 1fr 34px; min-height: 142px; padding: 30px clamp(24px, 3vw, 46px) 30px 0; text-decoration: none; }
.next-grid a + a { padding-left: clamp(24px, 3vw, 46px); border-left: 1px solid #b8c6dc; }
.next-grid strong { color: #173f96; font-size: 20px; font-weight: 650; }
.next-grid span { grid-column: 1; align-self: end; max-width: 48ch; color: #53647d; }
.next-grid i { grid-column: 2; grid-row: 1 / span 2; align-self: center; color: #173f96; font-style: normal; font-size: 0; transition: transform 160ms var(--ease); }
.next-grid a:hover i { transform: translate(3px, -3px); }

.contact-close { padding-block: var(--section); background: var(--blue); color: #fff; }
.contact-close .detail-wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: clamp(40px, 8vw, 120px); }
.contact-close h2 { max-width: 12ch; }
.contact-close p { max-width: 60ch; margin: 25px 0 0; color: #dce7ff; font-size: 18px; }
.close-action { margin: 0; border: 1px solid #ffffff66; background: #fff; color: #173f96; }
.close-action:hover { background: #eef3ff; color: #12377e; }

/* Footer */
.detail-footer { padding: 70px 0 28px; background: #06080e; color: #dfe7f4; }
.footer-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: clamp(42px, 8vw, 120px); }
.footer-logo { display: block; width: 184px; border-radius: 6px; }
.footer-logo img { width: 100%; height: 58px; object-fit: contain; object-position: left center; }
.detail-footer h2 { margin: 0 0 20px; color: #91b6ff; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.detail-footer p, .detail-footer address { margin: 14px 0; color: #9cabc1; font-size: 14px; font-style: normal; line-height: 1.65; }
.detail-footer .footer-grid a:not(.footer-logo) { display: table; min-height: 38px; padding-block: 7px; color: #dfe7f4; font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 56px; padding-top: 22px; border-top: 1px solid #243044; color: #8190a7; font-size: 12px; }
.footer-bottom a { min-height: 44px; display: inline-flex; align-items: center; }

@media (min-width: 1041px) {
  .decision-heads { display: grid; grid-template-columns: minmax(210px, .85fr) minmax(0, 2.5fr); gap: 40px; padding-top: 38px; color: #173f96; font-size: 12px; font-weight: 550; }
  .decision-heads > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
  body:not([data-page="method"]) .service-row { grid-template-columns: minmax(210px, .85fr) minmax(0, 2.5fr); gap: 40px; }
  body:not([data-page="method"]) .service-lead h2 { font-size: clamp(27px, 2.4vw, 36px); }
  .service-decisions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .service-decisions > div { display: block; padding: 0; border: 0; }
  .service-decisions > div:last-child { border: 0; }
  .service-decisions dt { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .service-decisions dd { font-size: 15px; }
}

@media (max-width: 1180px) {
  .header-inquiry { display: none; }
  .hero-layout { grid-template-columns: minmax(0, .9fr) minmax(430px, 1.1fr); gap: 56px; }
}

@media (max-width: 1040px) {
  .detail-header { display: grid; grid-template-columns: minmax(128px, 1fr) 44px auto; gap: 8px 12px; padding-inline: max(14px, var(--gutter)); }
  .detail-logo { grid-column: 1; }
  .nav-toggle { grid-column: 2; display: none; }
  html[data-menu-ready] .nav-toggle { display: inline-flex; }
  .header-tools { grid-column: 3; }
  .header-inquiry { display: none; }
  .detail-nav { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; margin: 0; padding: 12px 0 8px; border-top: 1px solid var(--line); }
  .detail-nav > a { justify-content: flex-start; white-space: normal; }
  .nav-inquiry { display: inline-flex !important; background: var(--blue) !important; color: #fff !important; }
  html[data-menu-ready] .detail-nav { display: none; }
  html[data-menu-ready] .detail-nav[data-open] { display: grid; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-copy { max-width: 780px; }
  .hero-copy h1 { max-width: 13ch; }
  .coordination { width: 100%; max-width: 780px; }
  .roles-heading { grid-template-columns: 1fr; }
  .roles-heading h2 { max-width: 14ch; }
}

@media (max-width: 760px) {
  :root { --header-h: 66px; --section: 56px; --gutter: 20px; }
  .detail-header { grid-template-columns: minmax(112px, 1fr) 44px auto; min-height: 66px; padding-block: 8px; }
  .detail-logo { width: 126px; }
  .detail-logo img { height: 42px; }
  .language-switch a { min-width: 44px; }
  .detail-nav { grid-template-columns: 1fr; max-height: calc(100svh - 74px); overflow-y: auto; padding-bottom: 14px; }
  .detail-nav > a { min-height: 48px; padding-inline: 12px; font-size: 14px; }
  .detail-hero { padding: 28px 0 52px; }
  .hero-layout { gap: 48px; }
  .breadcrumb { margin-bottom: 28px; }
  .hero-copy h1 { font-size: clamp(2.35rem, 11.8vw, 3.7rem); }
  .hero-copy > p { margin-top: 24px; font-size: 17px; }
  .primary-action { width: 100%; }
  .coordination { padding: 22px; border-radius: 14px; }
  .product-paths { grid-template-columns: 1fr; gap: 12px; padding-top: 28px !important; }
  .product-paths::before { top: 0; bottom: 0; left: 14px; right: auto; width: 1px; height: auto; }
  .product-paths li { min-height: 86px; margin-left: 20px; text-align: left; }
  .product-paths li::before { top: 50%; left: -21px; width: 20px; height: 1px; }
  .product-foundation { grid-template-columns: 1fr 1fr; }
  .product-foundation li + li { border-left: 0; }
  .product-foundation li:nth-child(even) { border-left: 1px solid #405675; }
  .product-foundation li:nth-child(n+3) { border-top: 1px solid #405675; }
  .payment-flow li { grid-template-columns: 1fr; gap: 7px; }
  .payment-flow span { padding-left: 0; border-left: 0; }
  .payment-rails { grid-template-columns: 1fr; }
  .onboarding-flow { grid-template-columns: 1fr; gap: 18px; }
  .onboarding-flow li { min-height: 110px; }
  .onboarding-flow li:nth-child(odd)::after { display: none; }
  .coordination--automation { grid-template-columns: 1fr; gap: 24px; }
  .process-shift { min-height: 28px; transform: rotate(90deg); }
  .process-after ul { grid-template-columns: 1fr; }
  .coordination--automation figcaption { text-align: left; }
  .coordination--method { grid-template-columns: 1fr; }
  .method-roles { grid-template-columns: repeat(3, 1fr); grid-template-rows: auto; }
  .method-roles li { justify-content: center; min-height: 58px; padding: 10px 6px; text-align: center; }
  .method-stages { grid-template-columns: 1fr; }
  .page-index .detail-wrap { display: block; padding-block: 20px; }
  .page-index p { margin-bottom: 8px; }
  .page-index ul { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 18px; }
  .page-index a { min-height: 48px; }
  .service-row { grid-template-columns: 1fr; gap: 28px; padding-block: 52px; }
  .service-lead h2 { font-size: clamp(2rem, 9.5vw, 3rem); }
  .service-decisions > div { grid-template-columns: 1fr; gap: 11px; }
  .roles-grid { grid-template-columns: 1fr; }
  .roles-grid > div { min-height: 0; padding: 28px 0 32px; }
  .roles-grid > div + div { padding-left: 0; border-top: 1px solid var(--dark-line); border-left: 0; }
  .roles-grid p { margin-top: 18px; }
  .faq-layout { grid-template-columns: 1fr; gap: 44px; }
  .faq-layout > h2 { max-width: 12ch; }
  .faq-list summary { font-size: 16px; }
  .faq-list details p { padding-right: 0; }
  .next-grid { grid-template-columns: 1fr; }
  .next-grid a + a { padding-left: 0; border-top: 1px solid #b8c6dc; border-left: 0; }
  .contact-close .detail-wrap { grid-template-columns: 1fr; align-items: start; }
  .close-action { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 390px) {
  .detail-header { column-gap: 6px; padding-inline: 10px; }
  .detail-logo { width: 116px; }
  .language-switch a { min-width: 44px; }
  .coordination { padding: 18px; }
  .process-after li { min-height: 96px; }
  .method-roles { grid-template-columns: repeat(3, 1fr); }
  .page-index ul { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (forced-colors: active) {
  .coordination, .responsibilities, .contact-close, .detail-footer { border-block: 1px solid CanvasText; }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after, .faq-list summary > span::before, .faq-list summary > span::after { background: CanvasText; }
}

.payment-flow .payment-rails { grid-column: 1 / -1; margin-top: 16px; gap: 20px; }
.payment-flow .payment-rails > div { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; padding-top: 14px; }
.payment-flow .payment-rails span { padding: 0; border: 0; font-size: 12px; }