/* Commercial acquisition pages — 聚元新创意设计 */
.commercial-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 9vw, 120px) 0;
  color: #fff;
  background:
    radial-gradient(circle at 78% 18%, rgba(35, 132, 255, .28), transparent 34%),
    linear-gradient(132deg, #061526 0%, #0b2f54 55%, #0b4677 100%);
}

.commercial-hero::after {
  position: absolute;
  width: 420px;
  height: 420px;
  right: -150px;
  bottom: -260px;
  content: "";
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  box-shadow: 0 0 0 72px rgba(255,255,255,.03), 0 0 0 144px rgba(255,255,255,.025);
}

.commercial-hero--compact { padding: clamp(64px, 8vw, 100px) 0; }
.commercial-hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); align-items: center; gap: clamp(36px, 7vw, 96px); }
.commercial-kicker { display: inline-flex; margin-bottom: 22px; padding: 8px 13px; border: 1px solid rgba(255,255,255,.26); border-radius: 999px; color: #bfe1ff; background: rgba(255,255,255,.07); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.commercial-hero h1 { max-width: 850px; margin: 0 0 24px; color: #fff; font-size: clamp(2.35rem, 5vw, 4.65rem); line-height: 1.06; letter-spacing: -.045em; }
.commercial-hero h1 em { color: #62c4ff; font-style: normal; white-space: nowrap; }
.commercial-hero p { max-width: 760px; margin: 0; color: rgba(255,255,255,.78); font-size: clamp(1rem, 1.5vw, 1.2rem); line-height: 1.85; }
.commercial-hero .btn-outline { color: #fff; border-color: rgba(255,255,255,.55); background: transparent; }
.commercial-hero .btn-outline:hover { color: #08223b; background: #fff; }
.commercial-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-proof-row { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; color: #d7edff; font-size: 14px; font-weight: 650; }

.home-offer-panel,
.commercial-promise-card,
.audit-scope-card,
.about-principles {
  padding: clamp(28px, 4vw, 44px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 26px;
  background: rgba(255,255,255,.1);
  box-shadow: 0 28px 70px rgba(0, 0, 0, .2);
  backdrop-filter: blur(14px);
}
.home-offer-panel__label, .commercial-promise-card > span, .audit-scope-card > span, .about-principles span { color: #9fd5ff; font-size: 13px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.home-offer-panel__price { display: block; margin: 15px 0 0; color: #fff; font-size: clamp(4.2rem, 8vw, 6.8rem); line-height: .95; letter-spacing: -.07em; }
.home-offer-panel__price small { margin-right: 8px; font-size: .35em; vertical-align: top; }
.home-offer-panel > p { margin: 10px 0 20px; color: #fff; font-size: 1.18rem; font-weight: 700; }
.home-offer-panel ul, .commercial-promise-card ul { display: grid; gap: 10px; margin: 0 0 22px; padding: 0; list-style: none; color: rgba(255,255,255,.86); }
.home-offer-panel li::before, .commercial-promise-card li::before { margin-right: 9px; color: #62c4ff; content: "✓"; font-weight: 800; }
.home-offer-panel a { color: #fff; font-weight: 750; text-decoration: none; }
.commercial-promise-card > strong { display: block; margin: 10px 0 12px; color: #fff; font-size: clamp(3rem, 6vw, 5.4rem); line-height: 1; letter-spacing: -.055em; }
.commercial-promise-card h2 { margin: 12px 0 24px; color: #fff; font-size: 1.55rem; }

.commercial-section { padding: clamp(68px, 8vw, 112px) 0; background: #fff; }
.commercial-section--soft { background: #f3f7fb; }
.commercial-section--dark { color: #fff; background: #071827; }
.commercial-heading { max-width: 780px; margin: 0 auto 44px; text-align: center; }
.commercial-heading--left { margin-right: 0; margin-left: 0; text-align: left; }
.commercial-heading > span { display: inline-block; margin-bottom: 10px; color: #0871c2; font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.commercial-heading h2 { margin: 0 0 14px; color: #0a2740; font-size: clamp(2rem, 3.5vw, 3.1rem); line-height: 1.15; letter-spacing: -.035em; }
.commercial-heading p { margin: 0; color: #5a6d7e; font-size: 1.05rem; line-height: 1.75; }
.commercial-heading--light > span { color: #6bc7ff; }
.commercial-heading--light h2 { color: #fff; }
.commercial-heading--light p { color: rgba(255,255,255,.68); }

.home-package-grid, .pricing-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.home-package-card, .pricing-card { position: relative; display: flex; min-width: 0; flex-direction: column; padding: 30px; border: 1px solid #dbe6ef; border-radius: 20px; background: #fff; box-shadow: 0 12px 32px rgba(13, 50, 80, .06); transition: transform .2s ease, box-shadow .2s ease; }
.home-package-card:hover, .pricing-card:hover { transform: translateY(-5px); box-shadow: 0 22px 42px rgba(13, 50, 80, .12); }
.home-package-card.is-featured, .pricing-card.is-featured { border: 2px solid #087bc1; background: linear-gradient(180deg, #f2faff 0%, #fff 45%); }
.home-package-card > span, .pricing-card__badge, .service-row > div:nth-child(2) > span { align-self: flex-start; margin-bottom: 16px; padding: 6px 10px; border-radius: 999px; color: #0871c2; background: #e9f5ff; font-size: 12px; font-weight: 800; }
.home-package-card h3, .pricing-card h3 { min-height: 2.8em; margin: 0 0 12px; color: #0b2941; font-size: 1.25rem; }
.home-package-card > strong, .pricing-card__price { margin-bottom: 18px; color: #0871c2; font-size: 2rem; font-weight: 850; letter-spacing: -.03em; }
.home-package-card p, .pricing-card p { color: #5b6d7d; line-height: 1.7; }
.home-package-card ul { display: grid; gap: 8px; margin: auto 0 20px; padding: 18px 0 0; border-top: 1px solid #edf2f6; color: #29475f; font-size: 14px; list-style: none; }
.home-package-card li::before { margin-right: 7px; color: #16805e; content: "✓"; font-weight: 800; }
.home-package-card a { color: #076db3; font-weight: 800; text-decoration: none; }
.home-cost-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 28px; margin-top: 28px; padding: 18px 24px; border-radius: 14px; color: #425d72; background: #eef5fa; font-size: 14px; }
.home-cost-strip strong { color: #092942; }
.home-cost-strip a { color: #0774bd; font-weight: 750; }

.home-lead-hero { padding: clamp(62px, 7vw, 92px) 0; }
.hero-compact-form .commercial-lead-form { padding: clamp(24px, 3vw, 34px); background: #fff; }
.hero-compact-form .commercial-lead-form h2 { font-size: 1.55rem; }
.hero-compact-form .contact-form { display: grid; gap: 12px; }
.hero-compact-form .form-group { margin: 0; }
.hero-compact-form .form-label { margin-bottom: 5px; }
.hero-compact-form .form-consent { color: #526878; font-size: 12px; }
.home-intent-strip { border-bottom: 1px solid #dbe6ee; background: #fff; }
.home-intent-strip .container { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 26px; padding-top: 18px; padding-bottom: 18px; color: #23445c; font-size: 14px; }
.home-intent-strip span { color: #0874bb; font-weight: 800; }
.seo-geo-home-grid { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); align-items: center; gap: clamp(36px,7vw,90px); }
.acquisition-system { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.acquisition-system div { padding: 26px; border: 1px solid #dbe6ee; border-radius: 16px; background: #f7fafc; }
.acquisition-system strong { color: #0b75b7; font-size: 1.45rem; }
.acquisition-system h3 { margin: 12px 0 8px; color: #0a2942; }
.acquisition-system p { margin: 0; color: #5a6f7f; line-height: 1.6; }
.home-demo-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.home-demo-grid .case-card { height: 100%; }
.section-center-action { margin-top: 30px; text-align: center; }
.metric-stage-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; }
.metric-stage-grid article { padding: 28px; border: 1px solid rgba(255,255,255,.13); border-radius: 18px; background: rgba(255,255,255,.06); }
.metric-stage-grid b { display: block; margin-bottom: 18px; color: #74ccfb; }
.metric-stage-grid strong { display: block; color: #fff; font-size: 1.2rem; }
.metric-stage-grid p { margin: 10px 0 0; color: rgba(255,255,255,.65); line-height: 1.65; }
.thank-you-page { min-height: 68vh; background: #f3f7fb; }
.thank-you-card { max-width: 760px; margin: 30px auto; padding: clamp(34px,6vw,70px); border: 1px solid #d9e5ed; border-radius: 24px; background: #fff; box-shadow: 0 24px 70px rgba(14,55,84,.1); text-align: center; }
.thank-you-card .commercial-kicker { color: #0874bb; border-color: #cfe4f2; background: #edf7fd; }
.thank-you-check { display: grid; width: 68px; height: 68px; margin: 0 auto 22px; place-items: center; border-radius: 50%; color: #fff; background: #13805f; font-size: 2rem; font-weight: 900; }
.thank-you-card h1 { margin: 0 0 16px; color: #0a2942; font-size: clamp(2rem,4vw,3.2rem); }
.thank-you-card > p { color: #5b6e7e; line-height: 1.75; }
.thank-you-card .commercial-actions { justify-content: center; }
.thank-you-card small { display: block; margin-top: 26px; color: #72838f; }

.pricing-grid { align-items: stretch; }
.pricing-card h3 { min-height: auto; }
.pricing-card .check-list { margin-bottom: 26px; }
.pricing-card .btn { margin-top: auto; }
.check-list { display: grid; gap: 10px; margin: 0; padding: 0; color: #304d64; list-style: none; }
.check-list li { position: relative; padding-left: 24px; line-height: 1.55; }
.check-list li::before { position: absolute; left: 0; color: #13805f; content: "✓"; font-weight: 900; }
.cost-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.cost-card { padding: 30px; border: 1px solid #dce6ee; border-radius: 18px; background: #fff; }
.cost-card h3 { margin: 0 0 10px; color: #0a2942; }
.cost-card strong { color: #0873bb; font-size: 1.55rem; }
.cost-card p { margin: 14px 0 0; color: #5b6e7f; line-height: 1.7; }
.commercial-note { margin: 22px 0 0; padding: 15px 18px; border-left: 4px solid #1b84c6; color: #466176; background: #eaf4fb; line-height: 1.65; }

.industry-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.industry-card { padding: 34px; border: 1px solid #dce6ee; border-radius: 20px; background: #fff; }
.industry-card__symbol { display: grid; width: 58px; height: 58px; margin-bottom: 28px; place-items: center; border-radius: 16px; color: #fff; background: linear-gradient(145deg, #0b79bd, #06446d); font-size: 1.7rem; }
.industry-card > span { color: #16805f; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.industry-card h3 { margin: 8px 0 12px; color: #0a2942; font-size: 1.5rem; }
.industry-card p { color: #5c6f7e; line-height: 1.75; }
.industry-card a { color: #0872b8; font-weight: 800; text-decoration: none; }
.industry-symbol { display: grid; min-height: 340px; place-items: center; border: 1px solid rgba(255,255,255,.18); border-radius: 28px; color: #7dccff; background: rgba(255,255,255,.08); font-size: clamp(7rem, 16vw, 13rem); }

.process-layout, .plan-detail-grid, .lead-layout { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); align-items: start; gap: clamp(40px, 8vw, 100px); }
.process-steps { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: none; }
.process-steps li { display: grid; grid-template-columns: 94px 1fr; gap: 24px; padding: 25px 0; border-bottom: 1px solid #e3ebf1; }
.process-steps li:first-child { padding-top: 0; }
.process-steps strong { color: #0c7abd; font-size: 1.2rem; }
.process-steps h3 { margin: 0 0 7px; color: #0a2942; }
.process-steps p { margin: 0; color: #607381; line-height: 1.65; }

.public-case-card { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: clamp(30px, 5vw, 54px); border: 1px solid rgba(255,255,255,.14); border-radius: 22px; background: linear-gradient(115deg, rgba(25,121,183,.23), rgba(255,255,255,.04)); }
.public-case-card > div { max-width: 780px; }
.public-case-card span { color: #75ceff; font-weight: 750; }
.public-case-card h3 { margin: 10px 0 14px; color: #fff; font-size: clamp(1.6rem, 3vw, 2.4rem); }
.public-case-card p { color: rgba(255,255,255,.68); line-height: 1.75; }
.public-case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.public-case-tags b { padding: 7px 10px; border: 1px solid rgba(255,255,255,.15); border-radius: 999px; color: #d8efff; font-size: 12px; }

.hero-checks { display: grid; gap: 13px; margin: 28px 0 0; padding: 0; color: rgba(255,255,255,.87); list-style: none; }
.hero-checks li::before { display: inline-grid; width: 22px; height: 22px; margin-right: 10px; place-items: center; border-radius: 50%; color: #002b48; background: #68c9ff; content: "✓"; font-size: 12px; font-weight: 900; }
.hero-checks--dark { color: #26445b; }
.hero-checks--dark li::before { color: #fff; background: #0c7dbf; }
.home-response-card, .founder-reply-card { padding: clamp(30px, 5vw, 48px); border: 1px solid #d9e5ed; border-radius: 22px; background: #f5f9fc; }
.home-response-card > span, .founder-reply-card > span { color: #0874bb; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.home-response-card h3, .founder-reply-card h2 { margin: 10px 0 12px; color: #0a2942; font-size: 1.8rem; }
.home-response-card p, .founder-reply-card p { color: #5a6e7e; line-height: 1.75; }
.home-response-card small { color: #667b89; }
.response-route { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 24px 0; padding: 16px; border-radius: 12px; color: #123b58; background: #fff; font-size: 14px; }
.response-route i { color: #61a8d5; font-style: normal; }

.commercial-cta { padding: 48px 0; color: #fff; background: linear-gradient(120deg, #0871b6, #06436f); }
.commercial-cta .container { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.commercial-cta span { color: #a9dcff; font-size: 13px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.commercial-cta h2 { margin: 6px 0; color: #fff; font-size: clamp(1.8rem, 3vw, 2.8rem); }
.commercial-cta p { margin: 0; color: rgba(255,255,255,.76); }
.commercial-cta .commercial-actions { margin-top: 0; }
.commercial-cta__button { flex: 0 0 auto; color: #075487 !important; background: #fff !important; }

.plan-price { display: flex; align-items: flex-end; gap: 13px; margin-top: 28px; }
.plan-price strong { color: #6dcbff; font-size: clamp(2.8rem, 5vw, 4.2rem); line-height: 1; }
.plan-price span { padding-bottom: 6px; color: rgba(255,255,255,.65); }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.feature-grid li { display: flex; align-items: center; gap: 10px; padding: 17px 18px; border: 1px solid #dce6ed; border-radius: 12px; color: #24445b; background: #fff; }
.feature-grid li span { display: grid; width: 24px; height: 24px; flex: 0 0 auto; place-items: center; border-radius: 50%; color: #fff; background: #12815f; font-size: 12px; }
.delivery-card, .keyword-card { padding: 32px; border-radius: 20px; color: #fff; background: #0a2b46; }
.delivery-card > span, .keyword-card > span { color: #72c9fa; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.delivery-card ol { display: grid; gap: 20px; margin: 24px 0; padding: 0; list-style: none; }
.delivery-card li { display: grid; grid-template-columns: 74px 1fr; gap: 12px; color: rgba(255,255,255,.75); line-height: 1.55; }
.delivery-card li strong { color: #fff; }
.delivery-card p, .keyword-card p { color: rgba(255,255,255,.62); font-size: 14px; line-height: 1.7; }
.keyword-card ul { display: grid; gap: 10px; margin: 24px 0; padding: 0; list-style: none; }
.keyword-card li { padding: 10px 12px; border: 1px solid rgba(255,255,255,.13); border-radius: 8px; color: #e3f4ff; background: rgba(255,255,255,.05); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.simple-faq-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.simple-faq-grid article { padding: 28px; border: 1px solid #dce6ee; border-radius: 16px; background: #fff; }
.simple-faq-grid h3 { margin: 0 0 10px; color: #0b2b44; font-size: 1.08rem; }
.simple-faq-grid p { margin: 0; color: #5a6e7d; line-height: 1.7; }

.audit-scope-card h2 { margin: 10px 0 24px; color: #fff; }
.audit-scope-card > div { display: grid; grid-template-columns: 44px 1fr; gap: 12px; align-items: start; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.12); }
.audit-scope-card strong { color: #66c7ff; }
.audit-scope-card p { color: rgba(255,255,255,.76); font-size: 15px; line-height: 1.6; }
.trust-list { display: grid; gap: 16px; }
.trust-list > div { padding: 20px; border-left: 3px solid #0c7abd; background: #fff; }
.trust-list strong { color: #0b2a43; }
.trust-list p { margin: 6px 0 0; color: #60727f; }
.commercial-lead-form { border: 1px solid #d6e3ec; border-radius: 22px; box-shadow: 0 18px 55px rgba(16,52,79,.1); }
.commercial-lead-form h2 { margin: 0 0 6px; color: #0a2942; font-size: 1.75rem; }
.commercial-lead-form .subtitle { margin-bottom: 24px; }
.contact-form-status { margin-bottom: 20px; padding: 14px 16px; border-radius: 10px; }
.contact-form-status-success { color: #1f633d; background: #eaf8ef; }
.contact-form-status-error { color: #9a2929; background: #fff0f0; }
.form-privacy-note { margin: 10px 0 0; color: #70818e; font-size: 12px; text-align: center; }

.problem-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.problem-grid article { padding: 30px; border-top: 3px solid #0877bd; background: #f5f8fb; }
.problem-grid strong { color: #80a5bf; font-size: 2rem; }
.problem-grid p { margin: 14px 0 0; color: #2b4b61; font-size: 1.05rem; line-height: 1.7; }

.service-row-list { display: grid; gap: 14px; }
.service-row { display: grid; grid-template-columns: 70px minmax(0, 1fr) 190px; align-items: center; gap: 28px; padding: 30px; border: 1px solid #dce6ee; border-radius: 18px; }
.service-row.is-featured { border-color: #1685c9; background: #f2faff; }
.service-row__number { color: #9fb3c1; font-size: 2rem; font-weight: 800; }
.service-row h2 { margin: 0 0 8px; color: #0b2b44; }
.service-row p { margin: 0; color: #60727f; line-height: 1.65; }
.service-row__tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.service-row__tags b { padding: 5px 8px; border-radius: 999px; color: #406176; background: #eaf1f6; font-size: 12px; }
.service-row__price { display: grid; justify-items: stretch; gap: 14px; }
.service-row__price strong { color: #0873bb; font-size: 1.7rem; text-align: center; }
.maintenance-banner { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; align-items: center; gap: 22px; padding: 30px; border: 1px solid #d8e5ed; border-radius: 18px; background: #fff; }
.maintenance-banner div { display: grid; gap: 6px; }
.maintenance-banner strong { color: #0a2a43; }
.maintenance-banner span { color: #627581; font-size: 14px; }

.about-principles { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; padding: 0; overflow: hidden; }
.about-principles > div { padding: 28px; background: rgba(6,32,54,.38); }
.about-principles strong { display: block; margin-bottom: 6px; color: #fff; font-size: 1.45rem; }
.about-principles span { line-height: 1.55; text-transform: none; }
.responsibility-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.responsibility-grid article { padding: 28px; border: 1px solid #dbe6ee; border-radius: 18px; background: #fff; }
.responsibility-grid h3 { margin: 0 0 20px; color: #0b2a43; }

.contact-direct { display: grid; justify-items: start; gap: 6px; margin-top: 30px; }
.contact-direct span { color: #9ccfee; font-size: 13px; }
.contact-direct a { color: #fff; font-size: clamp(1.2rem, 2vw, 1.65rem); font-weight: 800; }
.contact-direct small { color: rgba(255,255,255,.58); }
.qr-placeholder { display: grid; justify-items: center; padding: 32px; border: 1px solid rgba(255,255,255,.2); border-radius: 24px; background: rgba(255,255,255,.08); text-align: center; }
.qr-placeholder__image { display: block; width: min(100%, 260px); height: auto; margin-bottom: 18px; padding: 8px; border-radius: 16px; background: #fff; box-shadow: 0 18px 44px rgba(0,0,0,.18); }
.qr-placeholder strong { color: #fff; }
.qr-placeholder p { color: rgba(255,255,255,.65); font-size: 14px; }
.reply-note { margin-top: 26px; padding: 20px; border-radius: 14px; background: #e8f3fa; }
.reply-note strong { color: #0a2b44; }
.reply-note p { margin: 7px 0 0; color: #536d7f; }

/* Industry SEO/GEO topic clusters */
.cluster-hero h1 { font-size: clamp(2.25rem, 4.6vw, 4.25rem); }
.cluster-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; color: rgba(255,255,255,.58); font-size: 13px; }
.cluster-answer-card { padding: clamp(28px,4vw,42px); border: 1px solid rgba(255,255,255,.2); border-radius: 24px; background: rgba(255,255,255,.1); box-shadow: 0 28px 70px rgba(0,0,0,.18); backdrop-filter: blur(14px); }
.cluster-answer-card > span { color: #75ceff; font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.cluster-answer-card p { margin: 15px 0 22px; color: #fff; font-size: 1.08rem; line-height: 1.85; }
.cluster-answer-card a { color: #8ed7ff; font-weight: 800; text-decoration: none; }
.cluster-jump { position: sticky; z-index: 25; top: 70px; border-bottom: 1px solid #dde7ef; background: rgba(255,255,255,.94); backdrop-filter: blur(12px); }
.cluster-jump .container { display: flex; gap: 26px; overflow-x: auto; scrollbar-width: none; }
.cluster-jump a { flex: 0 0 auto; padding: 16px 0; color: #36546a; font-size: 14px; font-weight: 700; text-decoration: none; }
.cluster-jump a:hover { color: #0875ba; }
.cluster-fit-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.cluster-list-card { padding: 30px; border: 1px solid #dbe6ee; border-radius: 18px; background: #fff; }
.cluster-list-card h3 { margin: 0 0 20px; color: #0a2942; }
.cluster-list-card--accent { color: #fff; border-color: #0a3b60; background: #0a2d49; }
.cluster-list-card--accent h3 { color: #fff; }
.cluster-list-card--accent ul { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.cluster-list-card--accent li { padding: 14px 0; border-top: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.82); line-height: 1.65; }
.cluster-step-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 18px; }
.cluster-step-grid article { padding: 28px; border: 1px solid #dbe6ee; border-radius: 18px; background: #fff; }
.cluster-step-grid strong { color: #8aa8bc; font-size: 1.8rem; }
.cluster-step-grid h3 { margin: 20px 0 10px; color: #0b2a43; font-size: 1.12rem; }
.cluster-step-grid p { margin: 0; color: #5e7180; line-height: 1.72; }
.cluster-architecture { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.cluster-architecture li { display: grid; grid-template-columns: 42px 1fr; gap: 15px; padding: 18px; border: 1px solid #dce6ed; border-radius: 13px; }
.cluster-architecture li > span { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 9px; color: #fff; background: #0c77b8; font-weight: 800; }
.cluster-architecture strong { color: #0a2a43; }
.cluster-architecture p { margin: 5px 0 0; color: #617581; font-size: 14px; line-height: 1.6; }
.cluster-proof-panel { padding: 34px; border-radius: 20px; color: #fff; background: linear-gradient(145deg,#0b4169,#071f34); }
.cluster-proof-panel > span { color: #77cdfa; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.cluster-proof-panel h3 { margin: 12px 0; color: #fff; font-size: 1.55rem; }
.cluster-proof-panel p { margin-bottom: 24px; color: rgba(255,255,255,.7); line-height: 1.75; }
.keyword-matrix { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.keyword-matrix article { display: flex; align-content: flex-start; flex-wrap: wrap; gap: 9px; padding: 28px; border: 1px solid #dce6ee; border-radius: 18px; background: #fff; }
.keyword-matrix h3 { width: 100%; margin: 0 0 12px; color: #0a2b44; }
.keyword-matrix span { padding: 7px 10px; border-radius: 999px; color: #315b74; background: #edf5fa; font-size: 13px; }
.cluster-client-card ul { display: grid; gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.cluster-client-card li { position: relative; padding-left: 20px; color: rgba(255,255,255,.78); line-height: 1.6; }
.cluster-client-card li::before { position: absolute; left: 0; color: #71ccfb; content: "•"; }
.cluster-faq-list { display: grid; max-width: 900px; gap: 12px; margin: 0 auto; }
.cluster-faq-list details { border: 1px solid #dbe6ee; border-radius: 14px; background: #fff; }
.cluster-faq-list summary { position: relative; padding: 20px 54px 20px 22px; color: #0b2a43; cursor: pointer; font-weight: 760; list-style: none; }
.cluster-faq-list summary::-webkit-details-marker { display: none; }
.cluster-faq-list summary::after { position: absolute; right: 22px; content: "+"; color: #0a75b8; font-size: 1.35rem; }
.cluster-faq-list details[open] summary::after { content: "−"; }
.cluster-faq-list p { margin: 0; padding: 0 22px 22px; color: #5c7080; line-height: 1.75; }
.cluster-related-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 15px; }
.cluster-related-card { display: flex; min-height: 180px; flex-direction: column; padding: 24px; border: 1px solid #dbe6ee; border-radius: 16px; color: inherit; background: #fff; text-decoration: none; }
.cluster-related-card--pillar { color: #fff; border-color: #0b426a; background: #0a2e4b; }
.cluster-related-card span { color: #0b78bb; font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.cluster-related-card--pillar span { color: #77ceff; }
.cluster-related-card strong { margin: 12px 0 auto; color: #0b2b44; line-height: 1.45; }
.cluster-related-card--pillar strong { color: #fff; }
.cluster-related-card small { margin-top: 20px; color: #527087; }
.cluster-related-card--pillar small { color: rgba(255,255,255,.65); }
.cluster-conversion-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 28px; }
.cluster-conversion-links a { padding: 11px 16px; border: 1px solid #cddde8; border-radius: 999px; color: #0a659f; font-size: 14px; font-weight: 750; text-decoration: none; }

.commercial-footer .footer-email { display: inline-block; margin-top: 12px; color: #fff; font-weight: 700; }
.floating-audit { position: fixed; z-index: 90; right: 22px; bottom: 22px; display: flex; align-items: center; gap: 7px; padding: 13px 18px; border-radius: 999px; color: #fff; background: #0875ba; box-shadow: 0 12px 35px rgba(3,64,104,.3); font-weight: 750; text-decoration: none; }
.floating-audit span { padding: 3px 7px; border-radius: 999px; color: #075788; background: #fff; font-size: 11px; }

@media (max-width: 1080px) {
  .home-package-grid, .pricing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .simple-faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .maintenance-banner { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .cluster-step-grid, .cluster-related-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .metric-stage-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 820px) {
  .commercial-hero__grid, .process-layout, .plan-detail-grid, .lead-layout { grid-template-columns: 1fr; }
  .commercial-hero__grid { gap: 38px; }
  .industry-grid, .cost-grid, .problem-grid { grid-template-columns: 1fr; }
  .cluster-fit-grid, .keyword-matrix { grid-template-columns: 1fr; }
  .seo-geo-home-grid { grid-template-columns: 1fr; }
  .home-demo-grid { grid-template-columns: 1fr; }
  .commercial-cta .container, .public-case-card { align-items: flex-start; flex-direction: column; }
  .service-row { grid-template-columns: 54px 1fr; }
  .service-row__price { grid-column: 2; grid-template-columns: 1fr 1fr; align-items: center; }
  .maintenance-banner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .commercial-hero { padding: 58px 0; }
  .commercial-hero h1 { font-size: 2.35rem; }
  .commercial-actions { flex-direction: column; }
  .commercial-actions .btn { width: 100%; }
  .home-package-grid, .pricing-grid, .simple-faq-grid, .feature-grid, .responsibility-grid, .about-principles { grid-template-columns: 1fr; }
  .home-package-card, .pricing-card { padding: 24px; }
  .process-steps li { grid-template-columns: 64px 1fr; gap: 15px; }
  .service-row { grid-template-columns: 1fr; gap: 14px; }
  .service-row__price { grid-column: 1; grid-template-columns: 1fr; }
  .service-row__price strong { text-align: left; }
  .commercial-cta .commercial-actions { width: 100%; }
  .floating-audit { right: 14px; bottom: 14px; padding: 11px 14px; }
  .qr-placeholder__image { width: min(100%, 220px); }
  .cluster-jump { top: 68px; }
  .cluster-jump .container { gap: 20px; }
  .cluster-step-grid, .cluster-related-grid { grid-template-columns: 1fr; }
  .acquisition-system, .metric-stage-grid { grid-template-columns: 1fr; }
  .cluster-related-card { min-height: 150px; }
}