.business-page { background: #fff; }
.detail-header { background: rgba(4,21,46,.97); }
.business-page .eyebrow { color: var(--blue-600); }
.bi-hero { min-height: 700px; padding: 112px 0 78px; background: linear-gradient(120deg,#fff 0%,#fff 62%,#eef6fb 62%,#f8fbfd 100%); }
.breadcrumb { display: flex; gap: 12px; align-items: center; margin-bottom: clamp(45px,4.5vw,60px); color: #738094; font-size: .75rem; letter-spacing: .06em; }
.breadcrumb a:hover { color: var(--blue-600); }
.bi-hero-grid { display: grid; grid-template-columns: minmax(190px,.6fr) minmax(0,1.4fr); gap: clamp(50px,10vw,150px); align-items: start; }
.bi-kicker { padding-top: 13px; border-top: 1px solid var(--navy-900); }
.bi-kicker span { display: block; margin-bottom: 14px; color: var(--blue-600); font-size: .72rem; font-weight: 700; letter-spacing: .2em; }
.bi-kicker strong { display: block; font-family: Arial,sans-serif; font-size: clamp(1rem,1.5vw,1.35rem); line-height: 1.35; letter-spacing: .14em; }
.bi-hero-copy { max-width: 810px; }
.bi-hero h1 { margin: 0 0 30px; font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(3rem,4.6vw,4.8rem); font-weight: 500; line-height: 1.35; letter-spacing: -.04em; }
.bi-hero-copy > p { max-width: 680px; margin: 0 0 20px; }
.bi-lead { color: var(--navy-900); font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(1.25rem,2vw,1.65rem); line-height: 1.8; }
.bi-emphasis { color: var(--blue-700); font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(1.25rem,2vw,1.65rem); font-weight: 600; line-height: 1.65; }
.bi-button { display: inline-flex; min-width: 285px; min-height: 60px; align-items: center; justify-content: space-between; gap: 36px; margin-top: 24px; padding: 15px 24px; color: #fff; background: var(--navy-900); font-size: .88rem; font-weight: 700; transition: background .25s,transform .25s; }
.bi-button:hover { background: var(--blue-600); transform: translateY(-2px); }
.bi-button span { color: var(--cyan-400); }
.bi-related-link { display: inline-flex; gap: 15px; align-items: center; margin-top: 35px; color: var(--blue-600); font-size: .9rem; font-weight: 700; text-decoration: underline; text-decoration-color: var(--cyan-400); text-underline-offset: 7px; }
.bi-related-link:hover { color: var(--navy-900); }
.bi-section { padding-block: clamp(90px,11vw,160px); }
.bi-two-column,.bi-editorial { display: grid; grid-template-columns: minmax(240px,.75fr) minmax(0,1.25fr); gap: clamp(60px,9vw,140px); }
.bi-section-heading h2,.capability h2,.bi-area h2,.bi-final h2 { margin: 0; font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(2.15rem,4vw,4.25rem); font-weight: 500; line-height: 1.45; letter-spacing: -.03em; }
.bi-section-heading > p:last-child:not(.eyebrow) { max-width: 620px; margin-top: 28px; color: var(--muted); }
.bi-problems { background: #f5f8fb; }
.problem-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; margin: 0; padding: 0; border-top: 1px solid #b9c8d8; }
.problem-list li { min-height: 170px; display: grid; grid-template-columns: 48px 1fr; gap: 18px; align-items: start; padding: 32px 26px 32px 0; border-bottom: 1px solid #b9c8d8; }
.problem-list li:nth-child(odd) { border-right: 1px solid #b9c8d8; }
.problem-list li:nth-child(even) { padding-left: 30px; }
.problem-list span,.method-grid dt span,.bi-case-index { color: var(--blue-600); font-family: Georgia,serif; font-size: 1.05rem; }
.problem-list p { margin: 0; font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(1rem,1.5vw,1.23rem); line-height: 1.8; }
.bi-editorial { align-items: start; }
.bi-copy { max-width: 680px; }
.bi-copy > p { margin: 0 0 26px; }
.bi-copy blockquote { display: grid; gap: 10px; margin: 50px 0 0; padding: 35px 0 5px 32px; border-top: 1px solid var(--navy-900); border-left: 3px solid var(--blue-600); font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(1.15rem,2vw,1.5rem); }
.bi-scope { color: #fff; background: var(--navy-900); }
.bi-scope .eyebrow,.bi-scope .bi-emphasis { color: var(--cyan-400); }
.bi-scope .bi-copy { color: rgba(255,255,255,.78); }
.bi-scope .bi-emphasis { margin-top: 45px; }
.bi-methods .bi-section-heading { display: grid; grid-template-columns: .7fr 1.3fr; column-gap: clamp(60px,9vw,140px); align-items: end; margin-bottom: 65px; }
.bi-methods .bi-section-heading .eyebrow { grid-column: 1 / -1; }
.method-grid { display: grid; grid-template-columns: repeat(3,1fr); margin: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.method-grid > div { min-height: 215px; padding: 31px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.method-grid dt { display: flex; gap: 16px; align-items: baseline; margin-bottom: 24px; color: var(--navy-900); font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: 1.2rem; font-weight: 700; }
.method-grid dd { margin: 0; color: var(--muted); font-size: .92rem; }
.bi-consulting { color: #fff; background: var(--navy-900); }
.bi-consulting .eyebrow,.bi-consulting .bi-emphasis { color: var(--cyan-400); }
.bi-consulting .bi-copy { color: rgba(255,255,255,.78); }
.consulting-checks { list-style: none; margin: 36px 0 0; padding: 0; border-top: 1px solid rgba(255,255,255,.24); }
.consulting-checks li { position: relative; padding: 15px 0 15px 22px; border-bottom: 1px solid rgba(255,255,255,.24); }
.consulting-checks li::before { content: ""; position: absolute; top: 1.75em; left: 0; width: 8px; height: 1px; background: var(--cyan-400); }
.bi-process { background: #f5f8fb; }
.bi-process .bi-section-heading { position: sticky; top: 125px; align-self: start; }
.process-list { list-style: none; position: relative; margin: 0; padding: 0 0 0 26px; border-left: 1px solid #a8bad0; }
.process-list li { position: relative; display: grid; grid-template-columns: 110px 1fr; gap: 30px; padding: 0 0 48px 30px; }
.process-list li::before { content: ""; position: absolute; top: 7px; left: -31px; width: 9px; height: 9px; border: 3px solid #f5f8fb; border-radius: 50%; background: var(--blue-600); box-shadow: 0 0 0 1px var(--blue-600); }
.process-list span { color: var(--blue-600); font-size: .72rem; font-weight: 700; letter-spacing: .12em; }
.process-list h3 { margin: -8px 0 8px; font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: 1.35rem; }
.process-list p { margin: 0; color: var(--muted); }
.bi-capabilities { padding-bottom: 0; }
.capability { display: grid; grid-template-columns: minmax(150px,.42fr) minmax(0,1.58fr); gap: clamp(45px,9vw,135px); padding: clamp(80px,10vw,135px) 0; border-top: 1px solid var(--line); }
.capability:last-child { border-bottom: 1px solid var(--line); }
.capability-label span { display: block; color: var(--blue-600); font-family: Georgia,serif; font-size: 2.5rem; line-height: 1; }
.capability-label p { margin-top: 20px; font-size: .72rem; font-weight: 700; letter-spacing: .15em; line-height: 1.6; }
.capability-body { max-width: 790px; }
.capability-body h2 { margin-bottom: 38px; }
.capability-body > p { max-width: 680px; }
.capability-body ul { list-style: none; display: grid; grid-template-columns: repeat(4,1fr); margin: 42px 0 35px; padding: 0; border-top: 1px solid var(--line); }
.capability-body li { padding: 16px 8px 16px 0; border-bottom: 1px solid var(--line); color: var(--navy-900); font-size: .86rem; font-weight: 700; }
.bi-cases { background: #eef5fa; }
.bi-cases .bi-section-heading { margin-bottom: 70px; }
.bi-case-list { border-top: 1px solid #a8bad0; }
.bi-case-list article { display: grid; grid-template-columns: 170px 1fr; gap: 45px; padding: 48px 0; border-bottom: 1px solid #a8bad0; }
.bi-case-list h3 { margin: 0 0 14px; font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: clamp(1.4rem,2.3vw,2rem); }
.bi-case-list p:not(.bi-case-index) { max-width: 780px; margin: 0; color: var(--muted); }
.quote-list { list-style: none; margin: 35px 0; padding: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--navy-900); font-family: "Yu Mincho","Hiragino Mincho ProN",serif; font-size: 1.1rem; }
.quote-list li + li { margin-top: 12px; }
.bi-area { padding: 75px 0; color: #fff; background: var(--blue-700); }
.bi-area .eyebrow { color: #fff; opacity: .72; }
.bi-area h2 { font-size: clamp(2rem,3.6vw,3.5rem); }
.bi-area p:last-child { max-width: 760px; margin: 28px 0 0; color: rgba(255,255,255,.82); }
.bi-final { padding: clamp(90px,11vw,150px) 0; color: #fff; background: var(--navy-950); }
.bi-final .eyebrow { color: var(--cyan-400); }
.bi-final-grid { display: grid; grid-template-columns: 1fr .85fr; gap: clamp(60px,10vw,150px); align-items: end; }
.bi-final-grid > div:last-child > p { color: rgba(255,255,255,.76); }
.bi-button-light { color: var(--navy-950); background: #fff; }
.bi-button-light:hover { color: #fff; }

@media (max-width: 820px) {
  .bi-hero { min-height: 0; padding: 105px 0 85px; background: linear-gradient(145deg,#fff 0%,#fff 75%,#eef6fb 75%); }
  .breadcrumb { margin-bottom: 44px; }
  .bi-hero-grid,.bi-two-column,.bi-editorial,.bi-final-grid { grid-template-columns: 1fr; gap: 46px; }
  .bi-kicker { max-width: 190px; }
  .bi-methods .bi-section-heading { grid-template-columns: 1fr; gap: 22px; }
  .bi-methods .bi-section-heading .eyebrow { grid-column: auto; }
  .method-grid { grid-template-columns: 1fr 1fr; }
  .bi-process .bi-section-heading { position: static; }
  .capability { grid-template-columns: 110px 1fr; gap: 35px; }
  .capability-body ul { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 560px) {
  .bi-hero h1 { font-size: 2.55rem; }
  .bi-section { padding-block: 78px; }
  .problem-list { grid-template-columns: 1fr; }
  .problem-list li,.problem-list li:nth-child(even) { min-height: 0; padding: 27px 0; border-right: 0; }
  .problem-list p br { display: none; }
  .bi-copy blockquote { padding: 28px 0 0 20px; }
  .method-grid { grid-template-columns: 1fr; }
  .method-grid > div { min-height: 0; padding: 27px 22px; }
  .process-list li { grid-template-columns: 1fr; gap: 10px; padding-left: 22px; }
  .process-list li::before { left: -27px; }
  .process-list h3 { margin: 0 0 8px; }
  .capability { grid-template-columns: 1fr; gap: 30px; }
  .capability-label { display: flex; gap: 22px; align-items: center; }
  .capability-label p { margin: 0; }
  .capability-body ul { grid-template-columns: 1fr 1fr; }
  .bi-case-list article { grid-template-columns: 1fr; gap: 18px; padding: 38px 0; }
  .bi-button { width: 100%; min-width: 0; }
}