@font-face {
  font-family: "Serrif";
  src: url("assets/delight-fonts/serrif/Serrif-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Serrif";
  src: url("assets/delight-fonts/serrif/Serrif-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Serrif";
  src: url("assets/delight-fonts/serrif/Serrif-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Helvetica Now Text";
  src: url("assets/delight-fonts/helvetica-now-text/HelveticaNowText-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Helvetica Now Text";
  src: url("assets/delight-fonts/helvetica-now-text/HelveticaNowText-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #fbfcff;
  --paper-2: #f3f7fb;
  --ink: #171820;
  --ink-soft: #62656f;
  --blue: #327fd0;
  --blue-dark: #2168b3;
  --orange: #ff6b4a;
  --green: #4ca986;
  --line: #e7e9ef;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(65, 91, 123, .12);
  --display: "Serrif", "Songti SC", STSong, serif;
  --body: "Helvetica Now Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  --header-h: 72px;
}

body { background: var(--white); font-family: var(--body); }
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at 82% 8%, rgba(206, 232, 255, .34), transparent 25%);
}
.section-shell { width: min(1180px, calc(100% - 56px)); }
.section-pad { padding-block: 104px; }
.mono { font-family: var(--body); font-size: 11px; letter-spacing: .09em; }

.site-header {
  height: 72px;
  grid-template-columns: 1fr auto 1fr;
  background: rgba(255,255,255,.92);
  border-color: rgba(231,233,239,.85);
  backdrop-filter: blur(20px);
}
.site-header.is-scrolled { box-shadow: 0 8px 28px rgba(77, 93, 116, .08); }
.brand-mark { background: #20222a; border-radius: 5px; transform: none; }
.brand-name { font-size: 17px; font-weight: 700; }
.site-nav { color: #464952; font-size: 14px; font-weight: 520; }
.site-nav a.active, .site-nav a:hover { color: var(--orange); }
.site-nav a::after { background: var(--orange); }

.button {
  min-height: 48px;
  padding: 11px 22px;
  color: #fff;
  background: var(--orange);
  border-color: var(--orange);
  border-radius: 999px;
  font-weight: 650;
  box-shadow: 0 10px 24px rgba(255, 107, 74, .18);
}
.button:hover { background: #ed5d3f; box-shadow: 0 14px 30px rgba(255, 107, 74, .23); }
.button:active { transform: translateY(1px) scale(.99); }
.button-small { min-height: 40px; }
.button-quiet { color: var(--ink); background: #fff; border-color: var(--line); box-shadow: none; }
.button-quiet:hover { color: var(--orange); background: #fff; }
.text-link { color: #42454d; font-weight: 600; }

.hero {
  position: relative;
  min-height: calc(100svh - 72px);
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 54px;
  padding-block: 58px 70px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0 calc(50% - 50vw);
  z-index: -2;
  background:
    radial-gradient(circle at 8% 78%, rgba(255, 221, 230, .78), transparent 35%),
    radial-gradient(circle at 84% 28%, rgba(203, 231, 255, .92), transparent 38%),
    linear-gradient(125deg, #fff 14%, #f9f6ff 52%, #effaff 100%);
}
.hero-copy { max-width: 590px; }
.eyebrow { color: var(--orange); font-size: 12px; letter-spacing: .08em; text-transform: none; }
.eyebrow span { display: none; }
.hero h1 {
  margin: 20px 0 24px;
  font-size: clamp(52px, 4.8vw, 68px);
  font-weight: 720;
  line-height: 1.04;
  letter-spacing: -.055em;
}
.hero h1 em { color: var(--ink); font-style: normal; }
.hero-lead { max-width: 500px; color: #565963; font-size: 18px; line-height: 1.75; }
.hero-actions { margin-top: 34px; }

.bw-hero-visual { position: relative; min-height: 570px; isolation: isolate; }
.bw-orb {
  position: absolute;
  inset: 6% -8% 2% 0;
  z-index: -1;
  background: url("assets/bw-reference/gradient-orb.png") center / contain no-repeat;
  filter: blur(1px) saturate(.76);
  opacity: .58;
  animation: bw-float 8s ease-in-out infinite;
}
.bw-photo-card {
  position: absolute;
  inset: 13% 5% 12% 11%;
  overflow: hidden;
  border: 12px solid rgba(255,255,255,.72);
  border-radius: 32px;
  box-shadow: 0 28px 75px rgba(63, 92, 124, .22);
  transform: rotate(1.8deg);
}
.bw-photo-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(34, 70, 109, .26)); }
.bw-photo-card img { width: 100%; height: 100%; object-fit: cover; }
.bw-laptop { position: absolute; right: -3%; bottom: 0; width: 42%; filter: drop-shadow(0 24px 24px rgba(40,50,86,.18)); animation: bw-float 6s ease-in-out infinite reverse; }
.bw-analytics { position: absolute; top: 2%; left: 0; width: 31%; filter: drop-shadow(0 20px 24px rgba(53,84,122,.18)); animation: bw-float 7s ease-in-out infinite; }
.bw-flow-chip {
  position: absolute;
  bottom: 9%;
  left: 3%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 999px;
  background: rgba(255,255,255,.84);
  backdrop-filter: blur(16px);
  box-shadow: 0 14px 38px rgba(54,76,105,.16);
  font-size: 11px;
}
.bw-flow-chip span, .bw-flow-chip b, .bw-flow-chip strong { padding: 7px 11px; border-radius: 999px; }
.bw-flow-chip span { background: #f0f2f6; }
.bw-flow-chip b { color: #326dab; background: #e5f3ff; }
.bw-flow-chip strong { color: #fff; background: var(--orange); }
@keyframes bw-float { 50% { transform: translate3d(0,-10px,0) rotate(.8deg); } }

.friction-strip { border: 0; background: #fff; }
.friction-strip .section-shell { align-items: center; gap: 32px; padding-block: 26px; border-bottom: 1px solid var(--line); }
.section-kicker { color: #373941; font-size: 13px; }
.friction-list { gap: 8px; }
.friction-list span { padding: 9px 14px; color: #666a73; border: 1px solid var(--line); border-radius: 999px; background: #fbfcfd; }

.assessment { gap: 72px; }
.assessment-intro { top: 104px; }
.section-intro h2, .contact h2, .trust h2 { font-size: clamp(40px, 4.5vw, 64px); font-weight: 680; line-height: 1.1; letter-spacing: -.045em; }
.section-intro > p:not(.eyebrow), .split-intro > p { color: var(--ink-soft); }
.quiz-card { border: 1px solid #edf0f4; border-radius: 24px; box-shadow: 0 22px 65px rgba(67, 93, 122, .1); }
.quiz-top { border-color: var(--line); }
.quiz-progress span { background: linear-gradient(90deg, #83c8ef, #f6a6ad); }
.quiz-step label span { border-radius: 14px; }
.quiz-step label:hover span { border-color: #abd2eb; background: #f4faff; }

.solutions { position: relative; overflow: hidden; background: linear-gradient(110deg, #eef9ff 0%, #f3f5ff 48%, #fff1f3 100%); }
.solutions::after { content: ""; position: absolute; top: -80px; right: -70px; width: 380px; height: 300px; background: url("assets/bw-reference/gradient-orb.png") center/contain no-repeat; opacity: .22; }
.section-intro.centered { text-align: center; }
.scenario-layout { position: relative; z-index: 1; grid-template-columns: 260px 1fr; gap: 18px; margin-top: 62px; }
.scenario-tabs { gap: 8px; }
.scenario-tabs button { padding: 16px 18px; border: 1px solid rgba(255,255,255,.7); border-radius: 14px; background: rgba(255,255,255,.58); }
.scenario-tabs button::before { display: none; }
.scenario-tabs button[aria-selected="true"] { color: var(--orange); background: #fff; box-shadow: 0 12px 32px rgba(71,90,119,.09); }
.scenario-stage { border: 1px solid rgba(255,255,255,.9); border-radius: 26px; background: rgba(255,255,255,.84); box-shadow: 0 24px 70px rgba(67,92,124,.1); backdrop-filter: blur(16px); }
.scenario-flow div { border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.scenario-flow div:nth-child(2) { background: #eef8ff; }
.scenario-flow div:nth-child(3) { background: #fff3f5; }
.scenario-flow div:not(:last-child)::after { color: var(--orange); }
.scenario-note { border-radius: 14px; background: #f8f9fb; }

.principles { grid-template-columns: .85fr 1.15fr; column-gap: 66px; }
.principles > .section-intro { grid-column: 1; }
.bw-team-visual { position: relative; grid-column: 1; overflow: hidden; min-height: 350px; margin-top: 44px; border-radius: 26px; box-shadow: var(--shadow); }
.bw-team-visual > img:first-child { width: 100%; height: 100%; object-fit: cover; }
.bw-team-visual > img:last-child { position: absolute; right: -2%; bottom: -3%; width: 42%; filter: drop-shadow(0 14px 20px rgba(36,46,80,.22)); }
.principle-list { grid-column: 2; grid-row: 1 / 3; align-self: center; }
.principle-list article { border-color: var(--line); }
.principle-mark { color: var(--orange); border-color: #ffd1c6; border-radius: 50%; background: #fff6f3; }

.services { background: #fff; }
.service-grid { grid-template-columns: 1fr 1.12fr 1fr; gap: 18px; }
.service-card { position: relative; overflow: hidden; min-height: 470px; padding: 32px; border-color: var(--line); border-radius: 24px; background: #fff; box-shadow: 0 16px 46px rgba(73,91,115,.07); }
.service-card::after { content: ""; position: absolute; right: -28px; bottom: 16px; width: 170px; height: 150px; background: url("assets/bw-reference/analytics-3d.png") center/contain no-repeat; opacity: .9; }
.service-card:nth-child(2)::after { background-image: url("assets/bw-reference/laptop-3d.png"); }
.service-card:nth-child(3)::after { background-image: url("assets/bw-reference/automation-3d.png"); }
.service-card.featured { color: var(--ink); border-color: #dcecf7; background: linear-gradient(150deg, #f1faff, #fff5f6); transform: translateY(-10px); }
.service-card.featured p, .service-card.featured li { color: var(--ink-soft); }
.service-card h3 { font-size: 31px; }
.service-flag { color: var(--orange); background: #fff; }

.cases { background: #fff; }
.case-card { overflow: hidden; border-color: var(--line); border-radius: 24px; background: #fff; box-shadow: 0 16px 46px rgba(73,91,115,.07); }
.case-preview { background: linear-gradient(135deg, #eff9ff, #fff1f4); }
.case-tag { color: var(--orange); border: 0; background: #fff; border-radius: 999px; }
.case-mini-flow span { border-radius: 999px; background: rgba(255,255,255,.92); }

.delivery { color: var(--ink); background: linear-gradient(115deg, #f8fbff, #fff6f7); }
.delivery .eyebrow { color: var(--orange); }
.delivery .section-intro > p:not(.eyebrow), .delivery-list p { color: var(--ink-soft); }
.delivery-list { border: 0; }
.delivery-list li { margin-bottom: 10px; padding: 22px 24px; border: 1px solid rgba(255,255,255,.9); border-radius: 16px; background: rgba(255,255,255,.72); }
.delivery-list li + li { border-top: 1px solid rgba(255,255,255,.9); }
.delivery-list .mono { color: var(--orange); }

.trust-panel { color: var(--ink); border-radius: 30px; background: linear-gradient(125deg, #edf9ff, #f8f4ff 50%, #fff0f2); box-shadow: 0 24px 70px rgba(65,90,120,.12); }
.eyebrow.light { color: var(--orange); }
.trust-grid article { border-color: rgba(122,141,162,.18); background: rgba(255,255,255,.66); }
.trust-grid .mono { color: var(--orange); }
.trust-grid p { color: var(--ink-soft); }

.contact { background: linear-gradient(130deg, #edf9ff, #fff0f3); }
.contact-form { border: 1px solid rgba(255,255,255,.9); border-radius: 24px; background: rgba(255,255,255,.88); box-shadow: 0 25px 70px rgba(65,89,117,.12); backdrop-filter: blur(16px); }
.contact-form input, .contact-form textarea { border-color: var(--line); border-radius: 12px; background: #fff; }
.contact-note { border-radius: 16px; background: rgba(255,255,255,.62); }

.site-footer { background: #303137; }
.footer-grid { color: #c7c8cd; }
.footer-grid .mono { color: #93959e; }

/* Inner pages */
.page-hero { position: relative; overflow: hidden; padding-block: 92px 70px; border: 0; }
.page-hero.section-shell {
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: max(15px, calc((100vw - 1180px) / 2));
}
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(115deg, #fff6f8, #f1f6ff 55%, #e9f8ff); }
.page-hero h1 { font-size: clamp(52px, 6vw, 88px); font-weight: 680; }
.directory-card { border-color: var(--line); border-radius: 24px; box-shadow: 0 12px 36px rgba(71,91,117,.06); }
.directory-card:hover { border-color: #c8dff0; box-shadow: 0 20px 48px rgba(71,91,117,.11); }
.directory-index, .directory-card > strong { color: var(--orange); }
.page-cta { color: var(--ink); background: linear-gradient(110deg, #eaf7ff, #fff0f4); }
.page-cta p, .page-cta .mono { color: var(--ink-soft); }
.button.inverse { color: #fff; background: var(--orange); border-color: var(--orange); }
.button.inverse:hover { color: #fff; background: #ed5d3f; }
.detail-flow-section, .support-band { color: var(--ink); background: linear-gradient(115deg, #eef9ff, #fff2f5); }
.light-copy h2 { color: var(--ink); }
.light-copy .mono { color: var(--orange); }
.detail-flow > div { border-color: rgba(132,153,176,.2); background: rgba(255,255,255,.82); }
.detail-flow > div .mono { color: var(--orange); }
.human-callout { border-color: var(--orange); background: rgba(255,255,255,.72); }
.human-callout p { color: var(--ink-soft); }
.support-grid article { border-color: rgba(132,153,176,.22); background: rgba(255,255,255,.7); }
.support-grid p { color: var(--ink-soft); }
.about-manifesto { color: var(--ink); background: linear-gradient(110deg, #eaf7ff, #fff0f4); }
.about-manifesto .mono { color: var(--orange); }
.values-grid article, .team-slots span { border-color: var(--line); border-radius: 24px; }
.pagination button:hover, .pagination .active { background: var(--orange); border-color: var(--orange); }

@media (max-width: 1020px) {
  .site-header { grid-template-columns: 1fr auto; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { max-width: 720px; }
  .bw-hero-visual { min-height: 520px; width: min(100%, 740px); margin-inline: auto; }
  .principles { grid-template-columns: 1fr; }
  .principles > .section-intro, .bw-team-visual, .principle-list { grid-column: 1; grid-row: auto; }
  .bw-team-visual { max-width: 720px; }
}

@media (max-width: 700px) {
  .section-shell { width: min(100% - 30px, 1180px); }
  .section-pad { padding-block: 74px; }
  .site-header { height: 66px; background: rgba(255,255,255,.96); }
  .site-nav { background: rgba(255,255,255,.98); border-color: var(--line); border-radius: 18px; }
  .hero { padding-block: 48px 54px; gap: 30px; }
  .hero h1 { font-size: clamp(46px, 13vw, 58px); }
  .hero-lead { font-size: 16px; }
  .bw-hero-visual { min-height: 380px; }
  .bw-photo-card { inset: 12% 3% 11% 8%; border-width: 8px; border-radius: 24px; }
  .bw-analytics { width: 35%; }
  .bw-laptop { width: 45%; }
  .bw-flow-chip { left: 0; max-width: 96%; gap: 3px; padding: 6px; }
  .bw-flow-chip span, .bw-flow-chip b, .bw-flow-chip strong { padding: 6px 8px; }
  .friction-strip .section-shell { display: block; }
  .friction-list { margin-top: 14px; grid-template-columns: 1fr 1fr; }
  .scenario-tabs { grid-template-columns: repeat(5, max-content); }
  .scenario-layout { grid-template-columns: 1fr; }
  .scenario-flow { grid-template-columns: 1fr; }
  .scenario-flow div { min-height: 108px; }
  .scenario-flow div:not(:last-child)::after { top: auto; right: 50%; bottom: -22px; transform: translateX(50%) rotate(90deg); }
  .scenario-stage, .quiz-card, .contact-form { border-radius: 20px; }
  .service-card, .case-card, .trust-panel, .directory-card { border-radius: 20px; }
  .service-grid, .case-grid { grid-template-columns: 1fr; }
  .service-card.featured { transform: none; }
  .service-card { min-height: 430px; }
  .page-hero { padding-block: 58px 48px; }
  .page-hero h1 { font-size: clamp(43px, 13vw, 60px); }
}

@media (prefers-reduced-motion: reduce) {
  .bw-orb, .bw-laptop, .bw-analytics { animation: none; }
}

/* 赋智 AI-fozi iteration */
.header-sentinel { position: absolute; top: 0; width: 1px; height: 1px; pointer-events: none; }
.site-header { padding-inline: clamp(20px, 4vw, 58px); }
.site-nav { gap: clamp(18px, 2.2vw, 34px); }
.header-cta { justify-self: end; white-space: nowrap; }
.hero { min-height: calc(100dvh - var(--header-h)); }
.hero-lead { max-width: 44ch; }
.section-intro > p { max-width: 62ch; }
.hero .bw-orb { background: radial-gradient(circle at 34% 36%, rgba(126, 190, 238, .56), transparent 36%), radial-gradient(circle at 70% 62%, rgba(248, 168, 183, .5), transparent 42%); }
.bw-laptop, .bw-analytics, .bw-team-visual > img:last-child { height: auto; }
.hero .bw-laptop { animation: none; }

.proof-friction { padding-block: 42px 92px; background: #fff; }
.proof-layout { display: grid; gap: 52px; }
.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); min-height: 92px; border-block: 1px solid var(--line); }
.proof-strip > div { display: grid; align-content: center; gap: 4px; padding: 18px 22px; border-right: 1px solid var(--line); }
.proof-strip > div:last-child { border-right: 0; }
.proof-strip strong { color: var(--orange); font-size: 28px; }
.proof-strip span { color: var(--ink-soft); font-size: 13px; }
.proof-note { grid-column: 1 / -1; align-self: center; margin: 0; color: var(--ink-soft); text-align: center; }
.friction-copy { display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; align-items: start; }
.friction-copy h2 { max-width: 11ch; margin: 0; font-size: clamp(34px, 4vw, 54px); line-height: 1.12; letter-spacing: -.04em; }
.friction-list { display: grid; gap: 0; }
.friction-list article { display: grid; grid-template-columns: 180px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.friction-list article:first-child { padding-top: 4px; }
.friction-list strong { color: var(--ink); }
.friction-list span { color: var(--ink-soft); line-height: 1.7; }

.capability-overview { background: linear-gradient(118deg, #f5fbff, #fff7f8); }
.capability-overview .section-shell { display: grid; gap: 40px; }
.capability-stairs { display: grid; grid-template-columns: 1.12fr 1fr .88fr; align-items: end; gap: 16px; }
.capability-stairs article { min-height: 260px; padding: 34px; border: 1px solid rgba(255,255,255,.95); border-radius: 24px; background: rgba(255,255,255,.8); box-shadow: 0 18px 50px rgba(67,93,122,.08); }
.capability-stairs article:nth-child(2) { min-height: 230px; }
.capability-stairs article:nth-child(3) { min-height: 200px; }
.capability-stairs .mono, .level-grid .mono { color: var(--orange); }
.capability-stairs h3 { margin: 54px 0 12px; font-size: 27px; }
.capability-stairs p { color: var(--ink-soft); line-height: 1.7; }

.solutions .section-intro > p { margin-inline: auto; }
.scenario-tabs { max-height: 500px; overflow: auto; }
.scenario-tabs button { min-height: 58px; text-align: left; }
.scenario-flow > div > span { color: var(--orange); font-size: 12px; }

.case-grid { grid-template-columns: 1.12fr .88fr; grid-auto-flow: row; }
.case-grid .case-card:first-child { grid-row: span 2; }
.case-card { position: relative; }
.case-card.is-pending { border-style: dashed; }
.case-watermark { position: absolute; top: 18px; right: 18px; z-index: 2; padding: 6px 10px; color: #8a5f16; border: 1px solid #ecd7a7; border-radius: 999px; background: #fff9e9; font-size: 12px; }
.case-outcome { display: block; margin-top: 16px; color: var(--ink); font-size: 14px; }
.case-body button[aria-disabled="true"] { color: var(--ink-soft); cursor: default; }
.empty-state { grid-column: 1 / -1; padding: 56px; border: 1px dashed #cad5df; border-radius: 24px; background: #f9fbfd; text-align: center; }
.empty-state p { margin: 12px auto 24px; color: var(--ink-soft); }
.empty-state > div { display: flex; justify-content: center; gap: 12px; }

.delivery-list li { grid-template-columns: 82px 1fr; }
.principles .section-intro > p { margin-top: 18px; }
.principle-list article { padding-block: 20px; }
.contact-facts { display: grid; gap: 12px; margin: 32px 0; }
.contact-facts > div { display: grid; grid-template-columns: 88px 1fr; }
.contact-facts dt { color: var(--ink-soft); }
.contact-facts dd { margin: 0; font-weight: 700; }
.contact-form select { width: 100%; min-height: 48px; padding: 12px 14px; color: var(--ink); border: 1px solid var(--line); border-radius: 12px; background: #fff; font: inherit; }

.tech-capability-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; margin-top: 48px; }
.tech-capability-grid article { min-height: 190px; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.tech-capability-grid article:nth-child(3n) { background: linear-gradient(135deg, #eff9ff, #fff); }
.tech-capability-grid article:nth-child(4n) { background: linear-gradient(135deg, #fff4f6, #fff); }
.tech-capability-grid h3 { margin-bottom: 14px; font-size: 24px; }
.tech-capability-grid p { color: var(--ink-soft); line-height: 1.7; }
.product-levels, .ecosystem-value { background: linear-gradient(115deg, #eef9ff, #fff4f6); }
.level-grid { display: grid; grid-template-columns: 1.15fr .9fr .95fr; gap: 16px; margin-top: 46px; }
.level-grid article { min-height: 260px; padding: 32px; border: 1px solid rgba(255,255,255,.9); border-radius: 24px; background: rgba(255,255,255,.76); }
.level-grid h3 { margin: 54px 0 12px; font-size: 28px; }
.level-grid p { color: var(--ink-soft); line-height: 1.7; }
.directory > [data-solution-directory] { margin-top: 40px; }
.industry-focus { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.industry-copy h2 { font-size: clamp(38px, 4vw, 56px); }
.industry-copy p, .industry-pair p { color: var(--ink-soft); line-height: 1.7; }
.industry-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.industry-pair article { min-height: 240px; padding: 30px; border-radius: 24px; background: #f5faff; }
.industry-pair article + article { background: #fff4f6; }
.cta-pair { display: flex; align-items: center; gap: 22px; }

.case-filters { display: flex; gap: 8px; margin: 34px 0; padding-bottom: 8px; overflow-x: auto; scrollbar-width: thin; }
.case-filters button { flex: 0 0 auto; padding: 10px 16px; color: var(--ink-soft); border: 1px solid var(--line); border-radius: 999px; background: #fff; cursor: pointer; }
.case-filters button[aria-pressed="true"] { color: #fff; border-color: var(--orange); background: var(--orange); }
.archive-grid { min-height: calc(100dvh - 120px); }

.case-conversation { min-height: calc(100dvh - 96px); overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: #ededed; box-shadow: 0 18px 60px rgba(45, 55, 72, .1); }
.chat-titlebar { position: sticky; top: 0; z-index: 2; min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 13px 20px; border-bottom: 1px solid #d7d7d7; background: rgba(247,247,247,.96); backdrop-filter: blur(12px); }
.chat-titlebar > div { display: flex; align-items: center; gap: 12px; min-width: 0; }
.chat-titlebar h3 { margin: 0 0 4px; overflow: hidden; font-size: 18px; text-overflow: ellipsis; white-space: nowrap; }
.chat-titlebar p { margin: 0; color: var(--ink-soft); font-size: 12px; }
.chat-status { flex: 0 0 auto; color: #747474; font-size: 12px; }
.chat-thread { width: min(900px, calc(100% - 40px)); margin: 0 auto; padding: clamp(32px, 6vw, 76px) 0 90px; }
.chat-message { display: flex; align-items: flex-start; gap: 12px; margin: 0 0 30px; }
.chat-message-brand { flex-direction: row-reverse; }
.chat-avatar { flex: 0 0 44px; display: grid; place-items: center; width: 44px; height: 44px; color: #404040; border: 1px solid #d5d5d5; border-radius: 10px; background: #fff; font-size: 12px; font-weight: 800; }
.chat-avatar-brand { color: #fff; border-color: #c94d34; background: #c94d34; }
.chat-bubble { position: relative; max-width: min(72%, 650px); padding: 15px 17px; border: 1px solid #dedede; border-radius: 6px; background: #fff; line-height: 1.7; }
.chat-message-brand .chat-bubble { border-color: #8fc86f; background: #95ec69; }
.chat-bubble::before { content: ""; position: absolute; top: 15px; left: -7px; width: 12px; height: 12px; border-left: 1px solid #dedede; border-bottom: 1px solid #dedede; background: inherit; transform: rotate(45deg); }
.chat-message-brand .chat-bubble::before { right: -7px; left: auto; border: 0; border-top: 1px solid #8fc86f; border-right: 1px solid #8fc86f; }
.chat-bubble b { display: block; margin-bottom: 5px; font-size: 14px; }
.chat-bubble p { margin: 0; color: #333; font-size: 14px; }
.chat-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0 10px; }
.chat-flow span { padding: 5px 9px; border-radius: 6px; background: rgba(255,255,255,.56); font-size: 12px; font-weight: 700; }
.chat-flow i { color: #4b7750; font-style: normal; }
.chat-tech { padding-top: 8px; border-top: 1px solid rgba(53,104,47,.18); }
.chat-project-link { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; margin-top: 13px; padding: 13px 14px; color: #183b1e; border: 1px solid rgba(24,59,30,.28); border-radius: 7px; background: rgba(255,255,255,.65); cursor: pointer; text-align: left; transition: transform .16s ease, background .16s ease; }
.chat-project-link:hover { background: #fff; transform: translateY(-1px); }
.chat-project-link:active { transform: translateY(1px); }
.chat-project-link:focus-visible { outline: 3px solid rgba(201,77,52,.35); outline-offset: 3px; }
.chat-project-pending { margin-top: 12px !important; padding-top: 11px; border-top: 1px solid rgba(53,104,47,.2); color: #4d654f !important; }

.team-image { overflow: hidden; border-radius: 26px; box-shadow: var(--shadow); }
.team-image img { display: block; width: 100%; height: 100%; min-height: 360px; object-fit: cover; }
.partner-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; margin-top: 44px; }
.partner-grid article { min-height: 210px; padding: 30px; border: 1px solid var(--line); border-radius: 24px; }
.partner-grid article:nth-child(1), .partner-grid article:nth-child(4) { background: #f3faff; }
.partner-grid article:nth-child(2), .partner-grid article:nth-child(3) { background: #fff5f7; }
.partner-grid p { color: var(--ink-soft); line-height: 1.7; }
.ecosystem-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 40px; }
.ecosystem-list span { padding: 24px; border: 1px solid rgba(255,255,255,.9); border-radius: 18px; background: rgba(255,255,255,.72); text-align: center; }
.ecosystem-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; padding: 0; list-style: none; }
.ecosystem-steps li { padding-top: 20px; border-top: 3px solid var(--orange); }
.ecosystem-steps p { color: var(--ink-soft); line-height: 1.7; }
.not-found { min-height: 65dvh; display: grid; place-content: center; justify-items: start; gap: 18px; }
.not-found h1 { max-width: 12ch; font-size: clamp(44px, 6vw, 72px); line-height: 1.04; }

.page-hero h1 { max-width: 15ch; font-size: clamp(52px, 4.8vw, 68px); }
.footer-meta a { color: inherit; }
.button, .button.inverse { color: #fff; background: #c94d34; border-color: #c94d34; }
.button:hover, .button.inverse:hover { color: #fff; background: #b83f2c; border-color: #b83f2c; }
.eyebrow, .assessment-principle .mono, .capability-stairs .mono, .level-grid .mono, .delivery-list .mono, .trust-grid .mono, .light-copy .mono { color: #b44731; }
.case-body > .mono { color: var(--blue-dark); }
.case-filters button[aria-pressed="true"] { color: #fff; border-color: #c94d34; background: #c94d34; }
.footer-grid .mono, .footer-meta small { color: #c7c8cd; }

@media (max-width: 1020px) {
  .friction-copy, .industry-focus { grid-template-columns: 1fr; gap: 34px; }
  .friction-copy h2 { max-width: 16ch; }
  .tech-capability-grid, .partner-grid { grid-template-columns: 1fr 1fr; }
  .ecosystem-steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .proof-friction { padding-block: 24px 68px; }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-strip > div:nth-child(2) { border-right: 0; }
  .friction-list article { grid-template-columns: 1fr; gap: 8px; }
  .capability-stairs, .level-grid, .tech-capability-grid, .industry-pair, .partner-grid, .ecosystem-list, .ecosystem-steps { grid-template-columns: 1fr; }
  .capability-stairs article, .capability-stairs article:nth-child(2), .capability-stairs article:nth-child(3), .level-grid article { min-height: auto; }
  .capability-stairs h3, .level-grid h3 { margin-top: 34px; }
  .scenario-tabs { display: grid; grid-template-columns: repeat(6, max-content); max-height: none; overflow-x: auto; padding-bottom: 8px; }
  .case-conversation { min-height: calc(100dvh - 72px); border-radius: 14px; }
  .chat-titlebar { min-height: 68px; padding: 10px 12px; }
  .chat-status { display: none; }
  .chat-thread { width: calc(100% - 24px); padding: 26px 0 60px; }
  .chat-avatar { flex-basis: 38px; width: 38px; height: 38px; border-radius: 8px; font-size: 10px; }
  .chat-bubble { max-width: calc(100% - 56px); padding: 12px 13px; }
  .chat-message { gap: 9px; margin-bottom: 22px; }
  .scenario-tabs button { min-height: 48px; white-space: nowrap; }
  .case-grid { grid-template-columns: 1fr; }
  .case-grid .case-card:first-child { grid-row: auto; }
  .archive-grid { min-height: 0; }
  .empty-state { padding: 36px 20px; }
  .empty-state > div, .cta-pair { align-items: stretch; flex-direction: column; }
  .ecosystem-steps { gap: 26px; }
  .contact-facts > div { grid-template-columns: 72px 1fr; }
}

/* Gong-inspired interaction and rhythm iteration, with Fozi tokens preserved */
.site-header {
  transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, .97);
  border-color: rgba(218, 223, 231, .94);
  box-shadow: 0 12px 36px rgba(77, 93, 116, .1);
}
.brand { transition: opacity 180ms ease, transform 180ms ease; }
.brand:hover { opacity: .78; transform: translateY(-1px); }
.site-nav a {
  padding-block: 25px;
  transition: color 180ms ease;
}
.site-nav a::after { bottom: 17px; height: 2px; }
.header-cta { transition: transform 180ms ease, background-color 180ms ease, box-shadow 180ms ease; }

.hero-copy { position: relative; z-index: 2; }
.hero h1 { max-width: 10.5ch; text-wrap: balance; }
.hero-lead { text-wrap: pretty; }
.bw-photo-card { transition: transform 520ms cubic-bezier(.2, .72, .2, 1), box-shadow 520ms ease; }
.bw-hero-visual:hover .bw-photo-card {
  transform: rotate(.6deg) translateY(-5px);
  box-shadow: 0 34px 84px rgba(63, 92, 124, .25);
}
.bw-flow-chip { transition: transform 260ms ease, box-shadow 260ms ease; }
.bw-hero-visual:hover .bw-flow-chip { transform: translateY(-4px); box-shadow: 0 18px 44px rgba(54, 76, 105, .2); }

.friction-list article {
  position: relative;
  transition: color 200ms ease, transform 200ms ease;
}
.friction-list article::before {
  content: "";
  position: absolute;
  inset: 8px -18px;
  z-index: -1;
  border-radius: 14px;
  background: linear-gradient(90deg, rgba(238, 249, 255, .9), rgba(255, 243, 246, .72));
  opacity: 0;
  transform: scale(.98);
  transition: opacity 200ms ease, transform 200ms ease;
}
.friction-list article:hover { transform: translateX(5px); }
.friction-list article:hover::before { opacity: 1; transform: scale(1); }

.capability-overview { overflow: hidden; }
.capability-overview .section-shell { gap: 48px; }
.capability-stairs {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(168px, auto));
  align-items: stretch;
  gap: 18px;
}
.capability-stairs article {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 0;
  padding: 34px;
  transition: transform 260ms cubic-bezier(.2, .72, .2, 1), box-shadow 260ms ease, border-color 260ms ease;
}
.capability-stairs article::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 220px;
  height: 190px;
  right: -26px;
  bottom: -30px;
  background: url("assets/bw-reference/automation-3d.png") center / contain no-repeat;
  opacity: .62;
  transition: transform 360ms cubic-bezier(.2, .72, .2, 1), opacity 260ms ease;
}
.capability-stairs article:first-child {
  grid-column: 1 / span 7;
  grid-row: 1 / span 2;
  min-height: 354px;
  padding-right: min(42%, 250px);
  background: linear-gradient(135deg, rgba(255,255,255,.95), rgba(234,247,255,.88));
}
.capability-stairs article:first-child::after { width: 310px; height: 270px; right: -28px; bottom: -22px; opacity: .85; }
.capability-stairs article:nth-child(2) { grid-column: 8 / -1; grid-row: 1; min-height: 0; background: rgba(255,255,255,.9); }
.capability-stairs article:nth-child(2)::after { background-image: url("assets/bw-reference/laptop-3d.png"); }
.capability-stairs article:nth-child(3) { grid-column: 8 / -1; grid-row: 2; min-height: 0; background: linear-gradient(135deg, rgba(255,255,255,.94), rgba(255,240,244,.8)); }
.capability-stairs article:nth-child(3)::after { background-image: url("assets/bw-reference/analytics-3d.png"); }
.capability-stairs article:hover { transform: translateY(-5px); border-color: #d9e8f2; box-shadow: 0 26px 62px rgba(67,93,122,.12); }
.capability-stairs article:hover::after { opacity: .95; transform: translate3d(-8px, -6px, 0) rotate(-1.5deg); }
.capability-stairs h3 { max-width: 13ch; margin: 46px 0 12px; }
.capability-stairs p { position: relative; z-index: 1; max-width: 34ch; }

.scenario-tabs button {
  position: relative;
  overflow: hidden;
  transition: color 180ms ease, background-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}
.scenario-tabs button::after {
  content: "";
  position: absolute;
  inset: 12px auto 12px 0;
  width: 3px;
  border-radius: 3px;
  background: var(--orange);
  opacity: 0;
  transform: scaleY(.45);
  transition: opacity 180ms ease, transform 180ms ease;
}
.scenario-tabs button:hover { color: var(--ink); transform: translateX(3px); }
.scenario-tabs button[aria-selected="true"]::after { opacity: 1; transform: scaleY(1); }
.scenario-stage { min-height: 366px; }
.scenario-stage > * {
  opacity: 0;
  transform: translateY(9px);
  transition: opacity 260ms ease, transform 320ms cubic-bezier(.2, .72, .2, 1);
}
.scenario-stage > :nth-child(2) { transition-delay: 45ms; }
.scenario-stage > :nth-child(3) { transition-delay: 90ms; }
.scenario-stage.is-ready > * { opacity: 1; transform: translateY(0); }
.scenario-flow div { transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease; }
.scenario-flow div:hover { transform: translateY(-4px); border-color: #cadfea; box-shadow: 0 12px 28px rgba(65, 91, 123, .09); }

.case-card {
  transition: transform 260ms cubic-bezier(.2, .72, .2, 1), box-shadow 260ms ease, border-color 260ms ease;
}
.case-card:hover { transform: translateY(-6px); border-color: #d5e4ed; box-shadow: 0 28px 68px rgba(73,91,115,.13); }
.case-card .case-mini-flow { transition: transform 300ms cubic-bezier(.2, .72, .2, 1); }
.case-card:hover .case-mini-flow { transform: translateY(-4px); }
.case-body button:not([aria-disabled="true"]):hover { color: var(--orange); }

.delivery-layout { align-items: start; }
.delivery .section-intro { position: sticky; top: calc(var(--header-h) + 48px); }
.delivery-list li {
  position: relative;
  overflow: hidden;
  transition: transform 220ms ease, background-color 220ms ease, box-shadow 220ms ease;
}
.delivery-list li::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, #7fc9ef, #f49aab);
  opacity: 0;
  transform: scaleY(.3);
  transition: opacity 200ms ease, transform 240ms ease;
}
.delivery-list li:hover { transform: translateX(6px); background: #fff; box-shadow: 0 16px 38px rgba(69,91,117,.08); }
.delivery-list li:hover::after { opacity: 1; transform: scaleY(1); }

.principle-list article { transition: transform 200ms ease, background-color 200ms ease; }
.principle-list article:hover { transform: translateX(5px); background: linear-gradient(90deg, rgba(239,249,255,.7), transparent); }
.bw-team-visual img:first-child { transition: transform 620ms cubic-bezier(.2, .72, .2, 1); }
.bw-team-visual:hover img:first-child { transform: scale(1.025); }
.contact-form { transition: transform 260ms ease, box-shadow 260ms ease; }
.contact-form:focus-within { transform: translateY(-4px); box-shadow: 0 32px 78px rgba(65,89,117,.16); }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { border-color: #8abddd; box-shadow: 0 0 0 4px rgba(102, 177, 222, .12); outline: 0; }
.contact-form select:focus-visible { outline: 3px solid color-mix(in srgb, var(--orange) 72%, white); outline-offset: 3px; }

.directory-card, .tech-capability-grid article, .level-grid article, .partner-grid article, .industry-pair article {
  transition: transform 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
}
.tech-capability-grid article:hover, .level-grid article:hover, .partner-grid article:hover, .industry-pair article:hover {
  transform: translateY(-5px);
  border-color: #d4e4ee;
  box-shadow: 0 22px 54px rgba(71, 91, 117, .1);
}

.reveal-item {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 560ms ease var(--reveal-delay, 0ms), transform 640ms cubic-bezier(.2, .72, .2, 1) var(--reveal-delay, 0ms);
}
.reveal-item.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1020px) {
  .capability-stairs { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .capability-stairs article:first-child { grid-column: 1 / -1; grid-row: auto; min-height: 300px; }
  .capability-stairs article:nth-child(2), .capability-stairs article:nth-child(3) { grid-column: auto; grid-row: auto; min-height: 220px; }
  .delivery .section-intro { position: static; }
}

@media (max-width: 700px) {
  body.nav-open { overflow: hidden; }
  .page-hero h1 { font-size: clamp(46px, 13vw, 58px); }
  .menu-button { z-index: 3; }
  .menu-button span:not(.sr-only) { transition: transform 200ms ease; }
  .menu-button[aria-expanded="true"] span:not(.sr-only):nth-last-child(2) { transform: translateY(3px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:not(.sr-only):last-child { transform: translateY(-3px) rotate(-45deg); }
  .site-nav {
    top: calc(100% + 10px);
    left: 15px;
    right: 15px;
    z-index: 2;
    gap: 2px;
    padding: 12px;
    box-shadow: 0 26px 70px rgba(42, 55, 75, .18);
  }
  .site-nav a { padding: 15px 14px; border-radius: 12px; }
  .site-nav a::after { display: none; }
  .site-nav a.active { background: linear-gradient(90deg, #eef8ff, #fff3f5); }
  .bw-hero-visual:hover .bw-photo-card { transform: rotate(1.2deg); }
  .capability-stairs { grid-template-columns: 1fr; }
  .capability-stairs article:first-child, .capability-stairs article:nth-child(2), .capability-stairs article:nth-child(3) {
    grid-column: 1;
    min-height: 230px;
    padding-right: 34%;
  }
  .capability-stairs article::after, .capability-stairs article:first-child::after { width: 180px; height: 160px; right: -28px; bottom: -18px; }
  .capability-stairs h3 { margin-top: 30px; font-size: 24px; }
  .scenario-stage { min-height: 0; }
  .scenario-tabs button:hover, .friction-list article:hover, .delivery-list li:hover, .principle-list article:hover { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal-item, .reveal-item.is-visible, .scenario-stage > *, .scenario-stage.is-ready > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .bw-photo-card, .bw-flow-chip, .capability-stairs article, .capability-stairs article::after, .case-card, .case-mini-flow, .delivery-list li, .principle-list article, .bw-team-visual img:first-child, .contact-form {
    transition: none;
  }
}