:root {
  --ink: #17171a;
  --ink-soft: #2a2a2e;
  --paper: #f4f4f2;
  --surface: #ffffff;
  --line: #dedfe1;
  --muted: #6f7076;
  --accent: #3b1d28;
  --accent-soft: #f2ebed;
  --success: #2d6b4d;
  font-family: "Richevia Poppins", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
@font-face { font-family: "Richevia Poppins"; src: url("/assets/poppins-regular.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Richevia Poppins"; src: url("/assets/poppins-700.woff") format("woff"); font-weight: 700 900; font-display: swap; }
@font-face { font-family: "Richevia Display"; src: url("/assets/tilt-warp-regular.woff") format("woff"); font-weight: 400 900; font-display: swap; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
a { color: inherit; }
.site-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; min-height: 80px; padding: 0 clamp(24px, 5vw, 76px); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.95); backdrop-filter: blur(14px); }
.brand img { display: block; width: 150px; height: auto; }
.site-header nav { display: flex; align-items: center; gap: 34px; }
.site-header nav a { color: #313238; font-size: 13px; font-weight: 700; text-decoration: none; }
.site-header nav a:hover { color: var(--accent); }
.header-contact { padding: 11px 17px; border: 1px solid var(--ink); border-radius: 6px; }
.hero { min-height: 720px; display: grid; align-items: center; padding: 86px clamp(24px, 7vw, 110px); border-bottom: 1px solid var(--line); background: #fff; }
.hero-inner { width: min(1180px, 100%); }
.eyebrow { margin: 0 0 24px; color: var(--accent); font-size: 11px; font-weight: 900; letter-spacing: 2.8px; }
.hero h1 { max-width: 920px; margin: 0; font-family: "Richevia Display", "Richevia Poppins", sans-serif; font-size: clamp(58px, 8vw, 116px); line-height: .94; letter-spacing: -5px; }
.hero-copy { max-width: 720px; margin: 36px 0 0; color: #5f6066; font-size: clamp(17px, 2vw, 22px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 21px; border: 1px solid var(--ink); border-radius: 6px; color: #fff; background: var(--ink); font-size: 13px; font-weight: 800; text-decoration: none; }
.button.secondary { color: var(--ink); background: #fff; }
.principles { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 52px; padding: 0; list-style: none; }
.principles li { padding: 9px 12px; border: 1px solid var(--line); border-radius: 999px; color: #5d5e65; background: #fafafa; font-size: 11px; font-weight: 700; }
.section { padding: 100px clamp(24px, 7vw, 110px); border-bottom: 1px solid var(--line); }
.section.white { background: #fff; }
.section-grid { width: min(1180px, 100%); margin: 0 auto; }
.section-intro { display: grid; grid-template-columns: minmax(260px,.8fr) minmax(0,1.4fr); gap: 80px; align-items: start; }
.section h2 { margin: 0; font-family: "Richevia Display", "Richevia Poppins", sans-serif; font-size: clamp(40px, 5vw, 72px); line-height: 1.02; letter-spacing: -2px; }
.section-intro > div:last-child { color: #5f6066; font-size: 17px; line-height: 1.8; }
.section-intro p { margin: 0 0 18px; }
.capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 58px; }
.capability { min-height: 245px; padding: 26px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.capability small { color: var(--accent); font-weight: 900; letter-spacing: 1.5px; }
.capability h3 { margin: 45px 0 13px; font-size: 22px; }
.capability p { margin: 0; color: var(--muted); line-height: 1.65; }
.scope-table { width: 100%; margin-top: 48px; border-collapse: collapse; background: #fff; }
.scope-table th, .scope-table td { padding: 19px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.scope-table th { width: 28%; color: var(--muted); font-size: 11px; letter-spacing: 1px; text-transform: uppercase; }
.scope-table td { line-height: 1.65; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 50px; border: 1px solid var(--line); background: #fff; }
.step { min-height: 235px; padding: 30px; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step b { color: var(--accent); font-size: 12px; }
.step h3 { margin: 52px 0 13px; font-size: 20px; }
.step p { margin: 0; color: var(--muted); line-height: 1.65; }
.operator { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.operator-list { margin: 0; border-top: 1px solid var(--line); }
.operator-list div { display: grid; grid-template-columns: 155px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.operator-list dt { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: 1px; }
.operator-list dd { margin: 0; font-weight: 700; }
.contact-block { padding: 80px clamp(24px, 7vw, 110px); color: #fff; background: var(--ink); }
.contact-inner { width: min(1180px,100%); display: flex; align-items: end; justify-content: space-between; gap: 40px; margin: 0 auto; }
.contact-block .eyebrow { color: #cbbdc2; }
.contact-block h2 { max-width: 760px; margin: 0; font-family: "Richevia Display"; font-size: clamp(40px, 5vw, 68px); line-height: 1.05; }
.contact-block a { color: #fff; }
.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; padding: 30px clamp(24px, 7vw, 110px); border-top: 1px solid #34343a; color: #a7a8ae; background: var(--ink); font-size: 11px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.legal-page { min-height: 70vh; padding: 80px clamp(24px, 7vw, 110px); background: #fff; }
.legal-inner { width: min(850px,100%); }
.legal-page h1 { font-family: "Richevia Display"; font-size: clamp(44px, 7vw, 78px); line-height: 1; }
.legal-page h2 { margin-top: 42px; font-size: 21px; }
.legal-page p, .legal-page li { color: #55575e; line-height: 1.75; }
@media (max-width: 820px) {
  .site-header { min-height: 68px; }
  .site-header nav a:not(.header-contact) { display: none; }
  .hero { min-height: auto; padding-block: 76px; }
  .hero h1 { letter-spacing: -3px; }
  .section { padding-block: 72px; }
  .section-intro, .operator { grid-template-columns: 1fr; gap: 28px; }
  .capabilities, .steps { grid-template-columns: 1fr; }
  .step { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
  .contact-inner { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 520px) {
  .brand img { width: 125px; }
  .hero h1 { font-size: 52px; letter-spacing: -2px; }
  .hero-copy { font-size: 16px; }
  .operator-list div { grid-template-columns: 1fr; gap: 6px; }
}