:root {
  --paper: #f8f6f3;
  --white: #ffffff;
  --ink: #282528;
  --muted: #6f696b;
  --line: #ddd7d3;
  --rose: #b86b75;
  --rose-dark: #7e3f4b;
  --blush: #efe0de;
  --sage: #72867c;
  --sage-light: #e3e9e5;
  --gold: #b7965a;
  --navy: #2d3f4f;
  --shell: 1180px;
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: .88em;
  overflow-wrap: anywhere;
}
.shell { width: min(var(--shell), calc(100% - 48px)); margin: 0 auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 1000;
  background: var(--white); color: var(--ink); padding: 10px 16px; border-radius: 4px;
}
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 72px; background: rgba(248, 246, 243, .96);
  border-bottom: 1px solid rgba(126, 63, 75, .12);
  backdrop-filter: blur(16px);
}
.header-inner { height: 72px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 164px; }
.brand-mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  color: var(--white); background: var(--rose-dark); border-radius: 6px;
  font-family: Georgia, serif; font-weight: 700;
}
.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }
.brand-copy strong { font-size: 16px; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 8px; font-weight: 700; }
.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.desktop-nav a { font-size: 14px; color: #554f51; }
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--rose-dark); }
.header-contact {
  height: 38px; display: inline-flex; align-items: center; gap: 8px;
  padding: 0 14px; color: var(--white); background: var(--rose-dark); border-radius: 6px;
  font-size: 13px; font-weight: 700;
}
.header-contact svg { width: 16px; height: 16px; }
.menu-button {
  display: none; width: 42px; height: 42px; place-items: center;
  color: var(--ink); background: transparent; border: 0; cursor: pointer;
}
.mobile-nav {
  position: fixed; inset: 72px 0 auto; padding: 20px 24px 28px;
  background: var(--paper); border-bottom: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(40, 37, 40, .12);
}
.mobile-nav a { display: block; padding: 13px 0; border-bottom: 1px solid var(--line); font-weight: 650; }

.hero {
  position: relative; height: calc(100svh - 120px); min-height: 560px; max-height: 780px;
  isolation: isolate; overflow: hidden; color: var(--white);
}
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 55%; z-index: -3; }
.hero-overlay { position: absolute; inset: 0; background: rgba(29, 25, 27, .56); z-index: -2; }
.hero-inner { height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding-bottom: 18px; }
.eyebrow { margin: 0 0 14px; color: var(--rose-dark); font-size: 11px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.eyebrow.light { color: #e8c889; }
.hero h1 { margin: 0; font-size: 70px; line-height: 1; font-weight: 760; }
.hero-category { margin: 17px 0 0; font-size: 30px; line-height: 1.2; font-weight: 680; }
.hero-lead { max-width: 670px; margin: 22px 0 0; color: rgba(255,255,255,.88); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; gap: 12px; margin-top: 28px; }
.button {
  min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 0 20px; border: 1px solid transparent; border-radius: 6px; font-weight: 750;
}
.button svg { width: 18px; height: 18px; }
.button-primary { color: var(--white); background: var(--rose-dark); }
.button-primary:hover { background: #6e3540; }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.58); background: rgba(0,0,0,.15); }
.button-ghost:hover { background: rgba(255,255,255,.12); }
.hero-points { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 28px; color: rgba(255,255,255,.88); font-size: 13px; }
.hero-points span { display: inline-flex; align-items: center; gap: 7px; }
.hero-points svg { width: 16px; height: 16px; color: #e8c889; }

.value-strip { background: var(--white); border-bottom: 1px solid var(--line); }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); min-height: 118px; }
.value-grid div { display: flex; flex-direction: column; justify-content: center; padding: 20px 28px; border-right: 1px solid var(--line); }
.value-grid div:first-child { border-left: 1px solid var(--line); }
.value-grid strong { font-size: 17px; }
.value-grid span { margin-top: 3px; color: var(--muted); font-size: 12px; }

.section { padding: 104px 0; }
.section-heading { max-width: 760px; margin-bottom: 52px; }
.section-heading h2, .boundary-title h2, .contact-layout h2 {
  margin: 0; font-size: 38px; line-height: 1.28; font-weight: 740;
}
.section-heading > p:last-child, .contact-layout > div > p:last-child { margin: 17px 0 0; color: var(--muted); font-size: 16px; }

.approval-section { background: var(--paper); }
.workflow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); }
.workflow.four { grid-template-columns: repeat(4, 1fr); }
.workflow li { position: relative; min-height: 210px; padding: 30px 24px; border-right: 1px solid var(--line); }
.workflow li:first-child { border-left: 1px solid var(--line); }
.workflow .step-no { display: block; color: var(--rose-dark); font-size: 12px; font-weight: 850; }
.workflow strong { display: block; margin-top: 30px; font-size: 18px; }
.workflow p { margin: 11px 0 0; color: var(--muted); font-size: 13px; }
.approval-proof { display: grid; grid-template-columns: .85fr 1.15fr; gap: 54px; align-items: center; margin-top: 72px; }
.proof-copy h3 { margin: 0; font-size: 28px; line-height: 1.35; }
.proof-copy > p:not(.eyebrow) { margin: 18px 0 0; color: var(--muted); }
.check-list { list-style: none; margin: 25px 0 0; padding: 0; }
.check-list li { display: flex; align-items: center; gap: 10px; margin-top: 10px; font-size: 14px; font-weight: 650; }
.check-list svg { width: 17px; height: 17px; color: var(--sage); }
.proof-media { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.proof-media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

.solutions-section { background: var(--white); }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solution-card { min-height: 510px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.solution-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 6px; }
.solution-icon svg { width: 23px; height: 23px; }
.solution-icon.rose { color: var(--rose-dark); background: var(--blush); }
.solution-icon.sage { color: var(--sage); background: var(--sage-light); }
.solution-icon.navy { color: var(--navy); background: #e1e7eb; }
.card-kicker { margin: 24px 0 7px; color: var(--rose-dark); font-size: 10px; font-weight: 850; }
.solution-card h3 { margin: 0; font-size: 23px; }
.solution-card > p:not(.card-kicker):not(.boundary) { min-height: 78px; margin: 14px 0 0; color: var(--muted); font-size: 14px; }
.solution-card ul { margin: 20px 0 0; padding: 20px 0 0 19px; border-top: 1px solid var(--line); }
.solution-card li { margin: 8px 0; font-size: 13px; }
.solution-card .boundary { margin: 22px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--rose-dark); font-size: 12px; font-weight: 650; }

.skills-section { background: #efede9; }
.skill-flow { display: grid; grid-template-columns: 1fr 30px 1fr 30px 1fr 30px .65fr; align-items: stretch; }
.skill-flow > article { padding: 26px; border: 1px solid #cfc9c5; background: var(--paper); min-width: 0; }
.skill-flow > svg { width: 18px; align-self: center; justify-self: center; color: var(--muted); }
.skill-flow article span { color: var(--rose-dark); font-size: 9px; font-weight: 850; }
.skill-flow article h3 { min-height: 58px; margin: 16px 0 5px; overflow-wrap: anywhere; font-size: 17px; line-height: 1.3; }
.skill-flow article strong { color: var(--sage); font-size: 25px; }
.skill-flow article p { margin: 13px 0 0; color: var(--muted); font-size: 12px; }
.human-node { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--gold); border: 1px solid var(--gold); background: var(--paper); }
.human-node svg { width: 28px; height: 28px; }

.path-section { background: var(--paper); }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; }
.path-grid article { position: relative; padding-top: 25px; border-top: 2px solid var(--line); }
.path-number { width: 54px; height: 54px; display: grid; place-items: center; margin-top: -52px; color: var(--white); background: var(--rose-dark); border-radius: 6px; font-weight: 850; }
.path-grid article:nth-child(2) .path-number { background: var(--sage); }
.path-grid article:nth-child(3) .path-number { background: var(--gold); }
.path-label { margin: 27px 0 7px; color: var(--rose-dark); font-size: 11px; font-weight: 800; }
.path-grid h3 { margin: 0; font-size: 22px; }
.path-grid article > p:last-child { color: var(--muted); font-size: 14px; }

.boundary-section { padding: 88px 0; color: var(--white); background: var(--ink); }
.boundary-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.boundary-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.boundary-columns > div { padding-left: 20px; border-left: 1px solid rgba(255,255,255,.18); }
.boundary-columns svg { width: 23px; height: 23px; color: #e8c889; }
.boundary-columns h3 { margin: 16px 0 8px; font-size: 16px; }
.boundary-columns p { margin: 0; color: rgba(255,255,255,.68); font-size: 12px; }

.contact-section { padding: 88px 0; background: var(--blush); }
.contact-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: 80px; align-items: center; }
.contact-info { padding-left: 45px; border-left: 1px solid rgba(126,63,75,.25); }
.contact-info > span { display: block; color: var(--muted); font-size: 12px; }
.contact-info > strong { display: block; margin-top: 3px; font-size: 24px; }
.contact-info a { display: flex; align-items: center; gap: 10px; margin-top: 10px; color: var(--rose-dark); font-size: 25px; font-weight: 800; }
.contact-info svg { width: 23px; height: 23px; }
.contact-info small { display: block; margin-top: 4px; color: var(--muted); }
.site-footer { padding: 25px 0; color: #a39c9f; background: var(--ink); font-size: 11px; }
.footer-inner { display: flex; justify-content: space-between; }

.reveal { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .desktop-nav, .header-contact { display: none; }
  .menu-button { display: grid; margin-left: auto; }
  .hero h1 { font-size: 58px; }
  .hero-category { font-size: 27px; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid div:nth-child(3) { border-left: 1px solid var(--line); }
  .workflow { grid-template-columns: repeat(3, 1fr); }
  .workflow.four { grid-template-columns: repeat(2, 1fr); }
  .workflow li:nth-child(4) { border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
  .workflow li:nth-child(5) { border-top: 1px solid var(--line); }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { min-height: 0; }
  .solution-card > p:not(.card-kicker):not(.boundary) { min-height: 0; }
  .skill-flow { grid-template-columns: 1fr; gap: 10px; }
  .skill-flow > svg { transform: rotate(90deg); }
  .skill-flow article h3 { min-height: 0; }
  .human-node { min-height: 110px; }
  .boundary-layout { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .shell { width: min(100% - 32px, var(--shell)); }
  .site-header, .header-inner { height: 64px; }
  .mobile-nav { inset: 64px 0 auto; }
  .hero { height: calc(100svh - 98px); min-height: 570px; max-height: 700px; }
  .hero-image { object-position: 60% 50%; }
  .hero-overlay { background: rgba(29, 25, 27, .62); }
  .hero h1 { font-size: 46px; }
  .hero-category { font-size: 23px; }
  .hero-lead { font-size: 14px; line-height: 1.75; }
  .hero-actions { width: 100%; }
  .button { flex: 1; padding: 0 12px; font-size: 13px; }
  .hero-points { gap: 10px 16px; margin-top: 22px; font-size: 11px; }
  .value-grid { grid-template-columns: 1fr 1fr; }
  .value-grid div { padding: 18px 14px; }
  .value-grid strong { font-size: 14px; }
  .value-grid span { font-size: 10px; }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 40px; }
  .section-heading h2, .boundary-title h2, .contact-layout h2 { font-size: 29px; }
  .section-heading > p:last-child { font-size: 14px; }
  .workflow { grid-template-columns: 1fr; border-left: 1px solid var(--line); }
  .workflow.four { grid-template-columns: 1fr; }
  .workflow li { min-height: 0; padding: 23px 20px; border-top: 1px solid var(--line); }
  .workflow li:first-child { border-top: 0; border-left: 0; }
  .workflow li:nth-child(4) { border-left: 0; }
  .workflow strong { margin-top: 10px; }
  .approval-proof { grid-template-columns: 1fr; gap: 30px; margin-top: 50px; }
  .proof-media { order: -1; }
  .solution-card { padding: 24px; }
  .path-grid { grid-template-columns: 1fr; gap: 64px; }
  .boundary-section { padding: 70px 0; }
  .boundary-layout { gap: 42px; }
  .boundary-columns { grid-template-columns: 1fr; gap: 22px; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .contact-info { padding: 28px 0 0; border-left: 0; border-top: 1px solid rgba(126,63,75,.25); }
  .contact-info a { font-size: 22px; }
  .footer-inner { flex-direction: column; gap: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}