:root {
  --paper: #f7f8f7;
  --white: #fff;
  --ink: #182923;
  --muted: #65706c;
  --blue: #2858c8;
  --blue-dark: #1643b1;
  --blue-wash: #eef2fc;
  --line: #dfe4df;
  --soft: #f0f3ee;
  --deep: #152c43;
  --danger: #b42318;
  --danger-soft: #fdecec;
  --ok: #0f6b4c;
  --ok-soft: #e8f6ef;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, summary, select { cursor: pointer; }
button { color: inherit; border: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
a, button, summary { touch-action: manipulation; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { line-height: 1.35; font-weight: 600; letter-spacing: -.035em; text-wrap: balance; }
p { color: var(--muted); }
input, textarea, select { min-width: 0; }
.container { width: min(1200px, 84%); margin-inline: auto; }

/* 通用件 */
.site-header { position: sticky; z-index: 30; top: 0; border-bottom: 1px solid var(--line); background: #f7f8f7; }
.header-inner { position: relative; min-height: 82px; display: flex; align-items: center; gap: 26px; }
.brand { font-family: Arial, Helvetica, sans-serif; font-size: 45px; letter-spacing: -.075em; line-height: 1; font-weight: 700; }
.brand-descriptor { font-size: 18px; font-weight: 500; white-space: nowrap; padding-left: 24px; border-left: 1px solid var(--line); }
.main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; font-size: 14px; }
.main-nav a { padding-block: 10px; border-bottom: 1px solid transparent; transition: color .18s, border-color .18s; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 12px 30px; color: var(--white); background: var(--blue); border: 1px solid var(--blue); font-size: 15px; font-weight: 500; transition: background .18s, border-color .18s, transform .18s; white-space: nowrap; cursor: pointer; }
.button:hover { background: var(--blue-dark); border-color: var(--blue-dark); transform: translateY(-2px); }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.button.secondary:hover { color: var(--blue); border-color: var(--blue); background: var(--blue-wash); }
.header-cta .button { min-height: 42px; padding: 8px 22px; font-size: 14px; }
.menu-toggle { display: none; background: none; padding: 10px 0; }
.skip-link { position: fixed; top: -70px; left: 20px; padding: 10px 20px; z-index: 100; background: var(--blue); color: white; }
.skip-link:focus { top: 10px; }
.eyebrow { display: block; font-size: 13px; letter-spacing: .1em; line-height: 1.7; color: var(--muted); margin-bottom: 22px; }
.text-link { display: inline-block; color: var(--blue); font-size: 14px; border-bottom: 1px solid transparent; padding-block: 4px; }
.text-link:hover { border-color: currentColor; }
.small-label { display: block; color: var(--muted); font-size: 12px; letter-spacing: .08em; margin-bottom: 7px; }
.human-note { font-size: 12px; padding-top: 14px; border-top: 1px solid var(--line); }
.demo-caption { text-align: center; font-size: 11px; letter-spacing: .08em; margin-top: 16px; color: #747e78; }
.future-label { display: inline-flex; align-items: center; padding: 5px 11px; font-size: 11px; border: 1px dashed currentColor; color: var(--muted); line-height: 1.5; vertical-align: middle; }
.section { padding-block: 76px; }
.section-heading h2 { font-size: 34px; line-height: 1.5; }
.section-heading p { font-size: 16px; line-height: 1.9; margin-top: 18px; max-width: 640px; }

/* 首屏 */
.hero { padding-top: 62px; }
.hero-positioning { color: #496b7c; font-size: 14px; letter-spacing: .08em; }
.hero h1 { font-size: clamp(40px, 3.8vw, 58px); line-height: 1.4; letter-spacing: -.048em; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-heading-grid { display: grid; grid-template-columns: minmax(0, 1.95fr) minmax(0, 1fr); gap: 45px; align-items: center; margin-bottom: 42px; }
.hero-summary { margin: 0; padding-top: 5px; }
.hero-summary p { font-size: 15px; color: #515e58; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-top: 25px; }
.desktop-break { display: inline; }

/* 产品画面轮播 */
.product-carousel { margin-top: 6px; }
.carousel-stage { display: grid; place-items: center; min-height: 418px; background: #e9eeeb; border: 1px solid #dde5df; border-radius: 10px; padding: 28px 52px; }
.carousel-image { display: block; width: min(100%, 862px); padding: 0; background: var(--white); border-radius: 6px; overflow: hidden; cursor: zoom-in; }
.carousel-image img { display: block; width: 100%; height: auto; max-height: 480px; object-fit: contain; animation: carousel-reveal .35s ease-out; }
.carousel-bar { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 64px; }
.carousel-count { font: 12px Arial, sans-serif; letter-spacing: .07em; min-width: 100px; }
.carousel-count > span { color: #8a9690; }
.carousel-pagination { display: flex; align-items: center; gap: 8px; }
.carousel-pagination button { background: none; display: grid; place-items: center; padding: 0; width: 38px; height: 44px; }
.carousel-actions { display: flex; align-items: center; gap: 2px; }
.carousel-actions button { display: grid; place-items: center; width: 38px; height: 40px; padding: 0; background: transparent; border-radius: 50%; color: #4c6558; }
.carousel-actions svg { width: 17px; height: 17px; }
.detail-carousel .carousel-stage { min-height: 0; padding: 22px; }
.journey-dialog { border: 0; border-radius: 12px; width: min(1440px, 94vw); padding: 28px; background: #f7f8f7; color: var(--ink); }
.journey-dialog::backdrop { background: rgba(8, 22, 19, .72); }
.journey-dialog > div { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.journey-dialog h2 { font-size: 22px; }
.journey-dialog img { display: block; width: 100%; height: auto; }
@keyframes carousel-reveal { from { opacity: .55; } to { opacity: 1; } }

/* 章节 */
.chapter-nav { display: flex; justify-content: center; gap: 44px; padding-block: 23px; border-bottom: 1px solid var(--line); }
.chapter-nav button { background: none; padding: 5px 0; font-size: 14px; }
.chapter-heading { display: block; }
.chapter-label { display: block; font-size: 12px; letter-spacing: .12em; margin-bottom: 16px; color: var(--muted); }
.chapter-heading h2 { font-size: 39px; line-height: 1.45; letter-spacing: -.04em; }
.chapter-heading p { font-size: 15px; line-height: 1.9; margin-top: 12px; max-width: 740px; }
.light-chapter { color: #bfccd5; margin-bottom: 30px; }

/* 01 经营价值 */
.outcomes { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 38px; }
.outcome { padding: 0 32px; border-left: 0; }
.outcome:first-child { padding-left: 0; }
.outcome h3 { font-size: 27px; margin-bottom: 18px; }
.outcome > strong { display: block; font-size: 14px; font-weight: 500; }
.outcome p { font-size: 14px; margin: 12px 0; line-height: 1.9; }

/* 02 业务全程 */
.business-journey { border-top: 1px solid var(--line); }
.business-tabs { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 30px; background: var(--soft); }
.business-tabs button { padding: 21px 25px; text-align: left; background: none; border-bottom: 2px solid transparent; }
.business-tabs strong { display: block; font-size: 20px; font-weight: 500; }
.business-tabs span { display: block; font-size: 12px; margin-top: 8px; color: var(--muted); }
.business-panel { display: grid; grid-template-columns: 1.1fr 1fr; gap: 65px; padding: 38px; background: var(--white); min-height: 266px; }
.business-story h3 { font-size: 25px; margin-bottom: 16px; }
.business-story p { font-size: 14px; line-height: 1.95; }
.business-links { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 16px; }
.business-panel dl { margin: 0; }
.business-panel dl > div { display: grid; grid-template-columns: 90px 1fr; padding: 14px 0; gap: 14px; font-size: 13px; }
.business-panel dd { margin: 0; color: var(--muted); }

/* 看图故事 */
.journey-story { display: grid; grid-template-columns: 1.65fr 1fr; gap: 60px; align-items: center; padding-bottom: 72px; }
.journey-story-image { background: #e8edea; padding: 24px; border-radius: 8px; }
.journey-story-image img { display: block; width: 100%; height: auto; border-radius: 4px; }
.journey-story h2 { font-size: 33px; line-height: 1.5; }
.journey-story p { margin-block: 20px 18px; font-size: 14px; line-height: 1.95; }

/* 03 完整能力 */
.feature-overview { border-top: 1px solid var(--line); }
.feature-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 38px; gap: 48px; }
.group-heading { padding-bottom: 25px; margin-bottom: 10px; border-bottom: 1px solid #becbd7; }
.group-title { display: flex; align-items: baseline; gap: 16px; }
.group-number { font-family: Arial, sans-serif; font-size: 30px; font-weight: 300; letter-spacing: -.05em; line-height: 1; color: #557c9d; }
.group-heading h3 { font-size: 25px; font-weight: 600; color: #234c77; }
.group-heading p { font-size: 13px; margin-top: 15px; }
.feature-row { display: flex; align-items: center; gap: 18px; padding: 22px 14px; margin-inline: -14px; border-radius: 5px; transition: background .18s ease; }
.feature-row h4 { font-size: 18px; font-weight: 500; margin: 0; line-height: 1.5; }
.feature-row p { margin-top: 7px; font-size: 14px; }
.feature-open { width: 17px; height: 17px; flex-shrink: 0; color: #718796; margin-left: auto; position: relative; transition: transform .18s ease, color .18s ease; }
.feature-open::after { content: ""; position: absolute; right: 2px; top: 3px; width: 8px; height: 8px; border-top: 1.5px solid currentColor; border-right: 1.5px solid currentColor; transform: rotate(45deg); }
.section-tail { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 28px; }
.section-tail p { font-size: 12px; }

/* 持续经营 */
.influence-band { background: #172f3e; color: var(--white); padding-block: 66px; }
.influence-layout { display: grid; grid-template-columns: 41% 1fr; gap: 7%; align-items: center; }
.influence-layout h2 { font-size: 37px; line-height: 1.5; }
.influence-layout p { color: #bfccd5; margin-top: 24px; }
.influence-band .eyebrow { color: #b2c2d4; }
.influence-band .future-label { color: #c5d0d7; margin-top: 23px; }
.light-link { color: #c5d8ff; display: block; width: fit-content; margin-top: 20px; }
.relationship-demo { border-top: 1px solid #8a9cae; }
.relationship-tabs { display: flex; gap: 24px; border-bottom: 1px solid #8a9cae; }
.relationship-tabs button { color: inherit; font-size: 13px; padding: 20px 0; background: none; border-bottom: 2px solid transparent; }
.relationship-content { padding-top: 30px; }
.relationship-content h3 { font-size: 22px; line-height: 1.6; }
.relationship-content p { line-height: 1.9; font-size: 14px; margin-top: 16px; min-height: 80px; }
.relationship-content dl { margin: 30px 0 0; }
.relationship-content dl > div { display: grid; grid-template-columns: 110px 1fr; padding: 15px 0; border-bottom: 1px solid #627889; font-size: 13px; }
.relationship-content dd { margin: 0; color: #c5d0da; }

/* 内容与经验 */
.content-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 7%; }
.editorial-points { margin: 24px 0 16px; }
.editorial-points p { font-size: 14px; padding-block: 12px; line-height: 1.9; }
.editorial-points strong { display: block; color: var(--ink); font-weight: 500; margin-bottom: 4px; }
.content-demo, .pricing-demo { border: 1px solid var(--line); padding: 30px; background: var(--white); }
.content-showcase .content-demo { margin-top: 8px; }
.content-showcase .future-label { margin-top: 20px; }
.content-tabs, .price-tabs { display: flex; flex-wrap: wrap; gap: 22px; border-bottom: 1px solid var(--line); }
.content-tabs button, .price-tabs button { background: none; padding: 16px 0; font-size: 13px; border-bottom: 2px solid transparent; }
.content-output, .price-detail { padding-top: 32px; min-height: 205px; }
.content-output h3, .price-detail h3 { font-size: 25px; margin-bottom: 17px; }
.content-output p, .price-detail p { font-size: 15px; line-height: 1.9; }
.content-output .human-note { margin-top: 26px; }
.price-detail small { display: block; color: var(--muted); font-size: 11px; margin-top: 25px; }

/* 一单之后，还有下一单 */
.cycle-section { border-top: 1px solid var(--line); padding-top: 36px; }
.cycle-tabs { display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 30px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cycle-tabs button { background: none; text-align: left; padding: 20px 16px; border-bottom: 3px solid transparent; }
.cycle-tabs span { display: block; font-family: Arial, sans-serif; font-size: 12px; opacity: .65; }
.cycle-tabs strong { display: block; font-size: 15px; margin-top: 12px; font-weight: 500; }
.cycle-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 9%; padding: 28px 0 0; min-height: 165px; }
.cycle-detail h3 { font-size: 27px; }
.cycle-detail p { font-size: 15px; line-height: 1.9; margin-bottom: 15px; }
.cycle-detail .future-label { margin-left: 18px; }

/* 05 适用方案 */
.audiences { border-top: 1px solid var(--line); }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8%; margin-top: 30px; }
.audience-card { padding: 28px 0 0; border-top: 1px solid var(--line); }
.audience-grid h3 { font-size: 31px; line-height: 1.6; }
.audience-grid p { font-size: 16px; max-width: 460px; margin: 22px 0 29px; line-height: 1.9; }

/* 06 常见问题 */
.home-faq { display: grid; grid-template-columns: 34% 1fr; gap: 8%; border-top: 1px solid var(--line); }
.home-faq h2 { font-size: 31px; margin-top: 22px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0; list-style: none; font-size: 16px; }
.faq-list summary::-webkit-details-marker { display: none; }
.details-word { color: var(--muted); font-size: 11px; flex-shrink: 0; }
.faq-list p { padding: 0 36px 26px 0; font-size: 14px; line-height: 2; }
.home-faq .text-link { margin-top: 24px; }

/* 结尾与表单 */
.final-cta { border-top: 1px solid var(--line); padding-block: 82px 100px; display: flex; justify-content: space-between; align-items: center; gap: 45px; }
.final-cta h2 { font-size: 46px; line-height: 1.5; }
.final-cta p { margin-top: 24px; font-size: 15px; }
.final-cta .button { min-width: 190px; }
.final-cta.with-form { align-items: start; gap: 8%; }
.demo-contacts { margin-top: 28px; font-size: 14px; }
.demo-contacts a { color: var(--blue); }
.demo-form-panel { background: var(--white); border: 1px solid var(--line); padding: 40px; }
.demo-form-panel h2 { font-size: 28px; margin-bottom: 20px; }
.prototype-note { font-size: 12px; padding: 14px 17px; background: var(--soft); line-height: 1.9; }
.demo-form-panel form { display: grid; gap: 20px; margin-top: 30px; }
.demo-form-panel textarea { resize: vertical; }
.demo-form-panel select { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 0; background: var(--white); color: var(--ink); font-size: 14px; }
.form-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.optional { font-size: 11px; color: var(--muted); display: contents; }
.demo-form-panel .consent { display: flex; flex-direction: row; align-items: start; font-size: 11px; color: var(--muted); gap: 8px; }
.form-submit { width: 100%; }
.honeypot { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.lead-form { position: relative; }
.err { display: none; font-size: 12px; color: var(--danger); line-height: 1.6; }
.form-status { display: none; margin-top: 18px; padding: 16px 18px; font-size: 14px; line-height: 1.75; }
.form-status--ok { background: var(--ok-soft); color: var(--ok); border: 1px solid #b7e0cc; }
.form-status--err { background: var(--danger-soft); color: var(--danger); border: 1px solid #f3c0bc; }
.form-status--busy { background: var(--soft); color: var(--ink); border: 1px solid var(--line); }
.form-status b { font-weight: 600; }
.form-status ul { margin: 8px 0 0; padding-left: 1.2em; }
.form-status li { margin-top: 4px; }
.spinner { display: inline-block; width: 14px; height: 14px; margin-right: 8px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; vertical-align: -2px; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 页脚 */
.site-footer { background: #edf0ea; border-top: 1px solid var(--line); }
.footer-main { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: 35px; padding-block: 44px; }
.footer-main p { margin-top: 20px; font-size: 12px; line-height: 1.9; }
.footer-main strong { display: block; font-size: 12px; font-weight: 500; margin-bottom: 17px; }
.footer-main a { display: block; margin-top: 9px; font-size: 12px; color: var(--muted); }
.footer-main > div > .brand { display: inline-block; margin-top: 0; font-size: 45px; color: var(--ink); }
.footer-line { font-size: 23px; line-height: 1.6; }
.footer-bottom { display: flex; gap: 30px; justify-content: space-between; border-top: 1px solid var(--line); padding-block: 20px; font-size: 10px; color: var(--muted); }
.footer-beian { display: flex; flex-wrap: wrap; gap: 12px 22px; align-items: center; }
.footer-beian a { color: var(--muted); }

/* 内页 */
.feature-keywords span { font-size: 12px; color: var(--muted); }
.capability-nav a span { font-size: 11px; color: var(--muted); align-self: center; }
.page-hero { padding-top: 52px; padding-bottom: 48px; }
.page-hero h1 { font-size: 57px; line-height: 1.45; }
.page-hero p { max-width: 710px; margin-top: 26px; font-size: 17px; line-height: 1.9; }
.page-hero .button { margin-top: 30px; }
.capability-layout { display: grid; grid-template-columns: 245px 1fr; gap: 55px; padding-bottom: 80px; align-items: start; }
.capability-nav { position: sticky; top: 125px; border-top: 1px solid var(--line); }
.capability-nav a { display: flex; gap: 18px; padding: 15px 14px; font-size: 14px; border-bottom: 1px solid var(--line); border-left: 2px solid transparent; }
.article-heading { padding-top: 26px; border-top: 1px solid var(--line); }
.article-heading .eyebrow { display: inline-block; margin-right: 25px; }
.article-heading h2 { font-size: 35px; line-height: 1.55; margin-top: 13px; }
.article-heading > p { font-size: 17px; line-height: 1.95; margin-top: 26px; margin-bottom: 36px; }
.capability-points section { display: flex; gap: 24px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.point-index { font-family: Arial, sans-serif; font-size: 12px; color: var(--blue); padding-top: 6px; }
.capability-points h3 { font-size: 22px; }
.capability-points p { font-size: 15px; line-height: 2; margin-top: 14px; }
.feature-keywords { display: flex; flex-wrap: wrap; gap: 9px 20px; margin: 35px 0; }
.outcome-note { background: var(--blue-wash); padding: 35px; }
.outcome-note h3 { font-size: 24px; line-height: 1.65; margin-bottom: 25px; }
.availability-note { font-size: 11px; line-height: 1.9; margin-top: 24px; }
.capability-article .relationship-demo { background: var(--soft); padding: 25px 30px; color: var(--ink); }
.capability-article .relationship-content dd { color: var(--muted); }
.capability-article .relationship-tabs { border-color: var(--line); }
.capability-article .relationship-content dl > div { border-color: var(--line); }
.role-switch { display: flex; width: fit-content; border-bottom: 1px solid var(--line); margin-bottom: 38px; gap: 35px; }
.role-switch a { font-size: 15px; padding: 8px 0 15px; border-bottom: 2px solid transparent; }
.solution-route { padding-block: 25px 70px; }
.solution-list { margin-top: 42px; border-top: 1px solid var(--line); }
.solution-list > a { display: grid; grid-template-columns: 100px 1fr 180px; align-items: center; gap: 35px; padding: 40px 0; border-bottom: 1px solid var(--line); }
.solution-list h3 { font-size: 28px; margin-bottom: 17px; }
.solution-list p { font-size: 14px; max-width: 670px; line-height: 1.9; }
.solution-list .text-link { justify-self: end; text-align: right; }
.outcome-number { display: block; font-family: "Helvetica Neue", Arial, sans-serif; font-size: 68px; line-height: 1.1; font-weight: 200; letter-spacing: -.06em; }
.solution-boundary { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; background: var(--soft); padding: 50px; margin-bottom: 80px; }
.solution-boundary h2 { font-size: 34px; line-height: 1.6; }
.solution-boundary p { font-size: 15px; line-height: 1.9; margin-bottom: 15px; }
.faq-page { max-width: 950px; padding-bottom: 90px; }
.faq-page summary { font-size: 20px; padding-block: 30px; }
.faq-page p { font-size: 16px; }
.demo-page { padding-block: 90px 110px; display: grid; grid-template-columns: 1fr 1fr; gap: 8%; align-items: start; }
.demo-intro h1 { font-size: 46px; line-height: 1.5; }
.demo-intro > p { font-size: 16px; line-height: 2; margin-top: 28px; }
.demo-steps { margin: 55px 0 0; padding: 0; list-style: none; }
.demo-steps li { display: flex; gap: 25px; border-top: 1px solid var(--line); padding: 27px 0; }
.demo-steps li > span { font-size: 12px; color: var(--blue); padding-top: 4px; }
.demo-steps h3 { font-size: 20px; }
.demo-steps p { font-size: 14px; line-height: 1.9; margin-top: 12px; }
.prose { max-width: 760px; }
.prose h2 { font-size: 24px; margin: 36px 0 14px; }
.prose p, .prose li { font-size: 16px; line-height: 1.9; color: var(--muted); }
.prose ul { margin: 0; padding-left: 1.2em; }
.prose li { margin-top: 8px; }
.crumbs { font-size: 13px; color: var(--muted); padding: 28px 0 0; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.crumbs li:not(:last-child)::after { content: "/"; margin-left: 8px; color: var(--line); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 42px; }
.compare-grid article { border-top: 1px solid var(--line); padding-top: 18px; }
.compare-grid h3 { font-size: 22px; margin-bottom: 12px; }
.compare-grid p { font-size: 15px; line-height: 1.9; }

/* 状态、属性与高特异性覆盖（集中放置，避免特异性倒序） */
button:focus-visible, a:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.main-nav a[aria-current="page"], .main-nav a:hover { color: var(--blue); border-color: var(--blue); }
.role-switch a[aria-selected="true"] { color: var(--blue); border-color: var(--blue); }
.capability-nav a[aria-current="page"] { color: var(--blue); background: var(--blue-wash); border-left-color: var(--blue); }
.capability-nav a:hover { background: var(--soft); }
.footer-main a:hover { color: var(--blue); }
.footer-beian a:hover { color: var(--blue); }
.footer-main > div > a:not(.brand) { display: block; margin-top: 9px; font-size: 12px; color: var(--muted); }
.chapter-nav button:hover { color: var(--blue); }
.carousel-actions button:hover { background: #e6ece7; color: var(--ink); }
.business-tabs button[aria-selected="true"] { color: var(--blue); border-bottom-color: var(--blue); background: var(--blue-wash); }
.relationship-tabs button[aria-selected="true"] { border-color: currentColor; }
.content-tabs button[aria-selected="true"], .price-tabs button[aria-selected="true"] { color: var(--blue); border-color: var(--blue); }
.cycle-tabs button[aria-selected="true"] { background: var(--blue-wash); color: var(--blue); border-color: var(--blue); }
.cycle-tabs button:hover { background: var(--soft); }
.outcome:hover h3 { color: var(--blue); }
.solution-list > a:hover h3 { color: var(--blue); }
.feature-row:hover, .feature-row:focus-visible { background: #edf1f5; }
.feature-row:hover h4, .feature-row:focus-visible h4 { color: var(--blue); }
.feature-row:hover .feature-open, .feature-row:focus-visible .feature-open { color: var(--blue); transform: translate(2px, -2px); }
.faq-list details[open] summary { color: var(--blue); }
.faq-list details[open] .details-word { opacity: 0; }
.carousel-pagination button > span { display: block; width: 100%; height: 2px; background: #c7d1cc; transition: background .2s; }
.carousel-pagination button[aria-pressed="true"] > span { background: #254e76; }
input[aria-invalid="true"], select[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--danger); }
input:focus-visible, textarea:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.consent input { flex: 0 0 auto; margin-top: 4px; }
.demo-form-panel input:not([type="checkbox"]):not([type="radio"]) { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 0; background: var(--white); color: var(--ink); font-size: 14px; }
.form-submit:disabled { opacity: .7; cursor: wait; }
.err.is-on { display: block; }
.form-status.is-on { display: block; }
.final-cta.with-form .demo-form-panel { width: min(520px, 100%); flex: 0 0 auto; }
.form-pair label, .demo-form-panel form > label { display: flex; flex-direction: column; font-size: 13px; gap: 8px; }

@media (min-width: 1650px) {
  .container { width: min(1280px, 84%); }
  .hero h1 { font-size: 60px; }
}
@media (max-width: 1150px) {
  .hero-heading-grid { grid-template-columns: 1fr; gap: 20px; }
  .hero-summary p { max-width: 620px; }
  .chapter-nav { gap: 26px; }
  .container { width: calc(100% - 72px); }
  .header-inner { gap: 20px; }
  .main-nav { gap: 20px; }
  .brand-descriptor { font-size: 16px; padding-left: 16px; }
  .hero h1 { font-size: 45px; }
  .outcome { padding-inline: 30px; }
  .section-heading h2, .influence-layout h2 { font-size: 35px; }
  .relationship-tabs { gap: 17px; }
  .capability-layout { grid-template-columns: 220px 1fr; gap: 40px; }
  .page-hero h1 { font-size: 46px; }
  .demo-page { gap: 5%; }
  .demo-intro h1 { font-size: 38px; }
  .demo-form-panel { padding: 30px; }
}
@media (max-width: 900px) {
  .business-tabs { grid-template-columns: repeat(2, 1fr); }
  .feature-groups { grid-template-columns: 1fr; gap: 32px; }
  .content-showcase { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 800px) {
  .carousel-stage { min-height: 0; padding: 18px; }
  .carousel-bar { gap: 14px; min-height: 60px; }
  .carousel-count { min-width: 55px; }
  .journey-dialog { padding: 15px; }
  .brand-descriptor { display: none; }
  .chapter-heading { grid-template-columns: 1fr; gap: 14px; }
  .chapter-heading h2 { font-size: 29px; }
  .chapter-nav { flex-wrap: wrap; gap: 12px 26px; }
  .business-panel { grid-template-columns: 1fr; gap: 24px; padding: 24px; }
  .journey-story { grid-template-columns: 1fr; gap: 30px; padding-bottom: 50px; }
  .journey-story-image { padding: 14px; }
  .section-tail { align-items: start; flex-direction: column; }
  .container { width: calc(100% - 44px); }
  .header-inner { min-height: 74px; gap: 20px; }
  .brand { font-size: 34px; }
  .menu-toggle { display: block; margin-left: auto; font-size: 13px; }
  .header-cta .button { font-size: 12px; min-height: 36px; padding: 6px 13px; }
  .main-nav { display: none; position: absolute; top: 74px; left: 0; right: 0; margin: 0; padding: 18px 22px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .main-nav.open { display: flex; flex-direction: column; align-items: stretch; gap: 4px; }
  .hero { padding-top: 45px; }
  .hero h1 { font-size: clamp(31px, 5.7vw, 45px); line-height: 1.48; }
  .hero-summary p { font-size: 14px; }
  .outcomes { grid-template-columns: 1fr; gap: 25px; }
  .outcome { padding-inline: 0; }
  .outcome h3 { font-size: 22px; }
  .section { padding-block: 65px; }
  .influence-layout, .home-faq, .cycle-detail, .solution-boundary, .demo-page, .audience-grid { grid-template-columns: 1fr; gap: 40px; }
  .section-heading h2, .influence-layout h2 { font-size: 34px; }
  .section-heading p { font-size: 15px; }
  .influence-band { padding-block: 65px; }
  .cycle-tabs { grid-template-columns: repeat(3, 1fr); margin-top: 35px; }
  .cycle-tabs button { padding: 20px 14px; }
  .cycle-tabs strong { font-size: 13px; }
  .cycle-detail { min-height: 0; padding-top: 30px; }
  .cycle-detail h3 { font-size: 23px; }
  .audience-grid { gap: 32px; }
  .audience-grid h3 { font-size: 26px; }
  .audience-grid p { font-size: 14px; }
  .final-cta { padding-block: 60px; gap: 30px; }
  .final-cta h2 { font-size: 32px; }
  .final-cta .button { min-width: auto; }
  .footer-main { grid-template-columns: 1.3fr 1fr 1fr; gap: 25px; }
  .footer-line { display: none; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .page-hero { padding-top: 45px; padding-bottom: 50px; }
  .page-hero h1 { font-size: 39px; }
  .page-hero p { font-size: 15px; }
  .capability-layout { grid-template-columns: 1fr; gap: 28px; padding-bottom: 55px; }
  .capability-nav { position: static; display: grid; grid-template-columns: 1fr 1fr; }
  .capability-nav a { font-size: 12px; padding: 12px 10px; gap: 10px; }
  .article-heading h2 { font-size: 29px; }
  .article-heading > p { font-size: 16px; }
  .solution-list > a { grid-template-columns: 60px 1fr; gap: 25px; }
  .solution-list .text-link { grid-column: 2; justify-self: start; }
  .solution-list h3 { font-size: 24px; }
  .solution-boundary { padding: 30px; margin-bottom: 55px; }
  .solution-boundary h2 { font-size: 27px; }
  .demo-page { padding-block: 55px; }
  .demo-intro h1 { font-size: 37px; }
  .compare-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero h1 br { display: none; }
  .hero h1 { font-size: 36px; }
  .eyebrow { font-size: 11px; }
  .desktop-break { display: none; }
  .chapter-nav { gap: 10px 20px; }
  .business-tabs { grid-template-columns: 1fr; }
  .relationship-tabs { gap: 12px; }
  .relationship-tabs button { font-size: 11px; }
  .capability-article .relationship-demo { padding: 20px; }
  .content-demo, .pricing-demo { padding: 22px; }
  .content-tabs, .price-tabs { gap: 14px; }
  .content-tabs button, .price-tabs button { font-size: 12px; }
  .final-cta { flex-direction: column; align-items: start; }
  .relationship-content dl > div { grid-template-columns: 95px 1fr; font-size: 12px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 30px; padding-block: 45px; }
  .footer-main > div:first-child { grid-column: 1 / -1; }
  .faq-page summary { font-size: 17px; }
  .demo-form-panel { padding: 25px; }
  .form-pair { grid-template-columns: 1fr; }
  .final-cta.with-form { display: grid; grid-template-columns: 1fr; }
  .footer-beian { flex-direction: column; align-items: flex-start; gap: 8px; }
  .audience-card { padding-block: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .spinner { animation: none; }
}