@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800;900&display=swap');

:root {
  --ink: #171717;
  --muted: #6f6b66;
  --paper: #fffdf9;
  --paper-2: #f7f5f0;
  --line: #dedad2;
  --orange: #ff6b35;
  --orange-soft: #fff0e8;
  --lime: #d9f99d;
  --blue: #ddecff;
  --lavender: #eae3ff;
  --yellow: #fff1b8;
  --rail: 256px;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-display: 'Manrope', 'Noto Sans SC', sans-serif;
  --font-mono: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font-body); -webkit-font-smoothing: antialiased; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }
::selection { color: var(--paper); background: var(--orange); }

.sr-only, .skip-link:not(:focus) { 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:focus { z-index: 999; top: 12px; left: 12px; padding: 10px 14px; background: var(--ink); color: white; }
.reading-line { position: fixed; z-index: 200; top: 0; right: 0; left: 0; height: 3px; background: transparent; }
.reading-line span { display: block; width: 0; height: 100%; background: var(--orange); transition: width .1s linear; }
.mobile-header, .mobile-nav { display: none; }

.site-shell { display: grid; grid-template-columns: var(--rail) minmax(0, 1fr); }
.rail { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 28px 24px 22px; border-right: 1px solid var(--line); background: rgba(255, 253, 249, .96); z-index: 20; }
.brand, .mobile-brand { display: inline-flex; align-items: center; gap: 12px; width: max-content; }
.brand-mark { display: inline-grid; place-items: center; width: 34px; height: 34px; color: white; background: var(--ink); font: 700 11px/1 var(--font-mono); letter-spacing: -.08em; }
.brand-logo { display: block; width: 132px; height: auto; max-width: 100%; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.1; }
.brand-copy b { font: 800 12px/1 var(--font-display); letter-spacing: .03em; }
.brand-copy small { margin-top: 5px; color: var(--muted); font: 9px/1 var(--font-mono); letter-spacing: .05em; }
.section-nav { display: grid; gap: 2px; margin-top: 70px; }
.section-nav a { position: relative; display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 4px; padding: 9px 8px; color: #a09b93; border-left: 2px solid transparent; transition: color .2s, border-color .2s, background .2s; }
.section-nav a i { font: 10px/1 var(--font-mono); font-style: normal; }
.section-nav a span { font-size: 13px; font-weight: 600; }
.section-nav a:hover, .section-nav a.active { color: var(--ink); border-color: var(--orange); background: var(--orange-soft); }
.rail-footer { display: flex; align-items: center; gap: 8px; margin-top: auto; color: var(--muted); font: 9px/1 var(--font-mono); letter-spacing: .06em; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px var(--orange-soft); }

main { min-width: 0; overflow: hidden; }
.hero { min-height: min(810px, 100vh); padding: clamp(42px, 6vw, 88px) clamp(28px, 7vw, 112px) 0; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 79% 17%, #ffe0cc 0, rgba(255, 224, 204, .35) 17%, transparent 39%), linear-gradient(140deg, #fffdf9 0%, #fffdfa 58%, #fff8f3 100%); }
.hero-kicker, .eyebrow { color: var(--orange); font: 500 11px/1.4 var(--font-mono); letter-spacing: .06em; }
.hero-kicker { display: flex; align-items: center; gap: 8px; }
.orange-dot { display: inline-block; width: 8px; height: 8px; background: var(--orange); border-radius: 50%; }
.hero-main { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 64px; align-items: center; max-width: 1160px; min-height: 500px; margin: 18px auto 0; }
.hero-copy { padding-bottom: 20px; }
.eyebrow { margin: 0 0 14px; }
.hero h1, h2, h3 { margin: 0; }
.hero h1 { max-width: 850px; font: 800 clamp(42px, 6.25vw, 86px)/1.08 var(--font-display); letter-spacing: -.085em; }
.hero h1 span { color: var(--orange); }
.hero-description { max-width: 560px; margin: 28px 0 0; color: var(--muted); font-size: 15px; line-height: 1.95; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 32px; }
.solid-button { display: inline-flex; align-items: center; gap: 28px; padding: 14px 18px; color: white; background: var(--ink); font-size: 13px; font-weight: 700; transition: transform .2s, background .2s; }
.solid-button:hover { background: var(--orange); transform: translateY(-2px); }
.solid-button span { font-size: 18px; line-height: .8; }
.text-button { padding: 10px 0; color: var(--ink); background: none; border: 0; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 700; }
.text-button span { margin-left: 8px; color: var(--orange); }
.hero-index { position: relative; align-self: center; display: grid; place-items: center; width: 270px; height: 270px; margin: 0 auto; border: 1px solid var(--ink); border-radius: 50%; }
.hero-index::before, .hero-index::after { position: absolute; content: ''; background: var(--ink); }
.hero-index::before { top: 50%; left: 12px; right: 12px; height: 1px; }
.hero-index::after { top: 12px; bottom: 12px; left: 50%; width: 1px; }
.index-top { position: absolute; top: -8px; right: 18px; left: 18px; display: flex; justify-content: space-between; align-items: center; padding: 0 8px; background: #fff9f3; z-index: 1; }
.index-top span, .hero-index p { font: 9px/1 var(--font-mono); letter-spacing: .08em; }
.index-top b { color: var(--orange); font: 800 30px/1 var(--font-display); letter-spacing: -.08em; }
.index-orbit { display: grid; place-items: center; width: 135px; height: 135px; border: 1px dashed var(--orange); border-radius: 50%; background: #fff9f3; z-index: 1; animation: spin 16s linear infinite; }
.index-orbit span { color: var(--ink); font: 800 42px/1 var(--font-display); letter-spacing: -.1em; animation: counterspin 16s linear infinite; }
.hero-index p { position: absolute; right: 23px; bottom: -6px; left: 23px; margin: 0; padding: 0 8px; background: #fff9f3; text-align: center; z-index: 1; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1160px; margin: 40px auto 0; border-top: 1px solid var(--line); }
.hero-stats article { padding: 22px 22px 28px 0; border-right: 1px solid var(--line); }
.hero-stats article + article { padding-left: 22px; }
.hero-stats article:last-child { border-right: 0; }
.hero-stats b { display: block; color: var(--orange); font: 800 clamp(24px, 2.2vw, 34px)/1 var(--font-display); letter-spacing: -.07em; }
.hero-stats span { display: block; margin-top: 8px; color: var(--muted); font-size: 11px; }

.control-strip { position: sticky; top: 0; z-index: 15; display: flex; align-items: center; gap: 30px; padding: 17px clamp(28px, 7vw, 112px); border-bottom: 1px solid var(--line); background: rgba(255, 253, 249, .92); backdrop-filter: blur(12px); }
.control-intro { display: grid; gap: 3px; min-width: 132px; }
.control-intro span { color: var(--orange); font: 10px/1 var(--font-mono); letter-spacing: .07em; }
.control-intro strong { font-size: 12px; white-space: nowrap; }
.filter-list { display: flex; gap: 7px; overflow-x: auto; scrollbar-width: none; }
.filter-list::-webkit-scrollbar { display: none; }
.filter-pill { flex: 0 0 auto; padding: 8px 11px; color: var(--muted); border: 1px solid var(--line); background: transparent; font-size: 12px; white-space: nowrap; transition: color .2s, border-color .2s, background .2s; }
.filter-pill:hover, .filter-pill.active { color: white; border-color: var(--ink); background: var(--ink); }
.filter-pill b { margin-left: 3px; color: var(--orange); font: 10px var(--font-mono); }

.case-study { position: relative; padding: clamp(60px, 8vw, 120px) clamp(28px, 7vw, 112px); border-bottom: 1px solid var(--line); transition: opacity .25s, max-height .25s, padding .25s, overflow .25s; }
.case-study.hidden { max-height: 0; padding-top: 0; padding-bottom: 0; overflow: hidden; opacity: 0; border-width: 0; pointer-events: none; }
.case-head { display: grid; grid-template-columns: 134px minmax(0, 1fr); gap: 28px; max-width: 1160px; margin: 0 auto; }
.case-number { position: sticky; top: 100px; align-self: start; color: var(--orange); font: 800 clamp(38px, 4vw, 58px)/.8 var(--font-display); letter-spacing: -.09em; }
.case-number span { display: block; margin-top: 16px; color: var(--muted); font: 9px/1.4 var(--font-mono); letter-spacing: .08em; }
.case-title-row { display: flex; justify-content: space-between; gap: 28px; align-items: flex-start; }
.case-type { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; color: var(--orange); font: 500 10px/1.2 var(--font-mono); letter-spacing: .08em; }
.case-type::before { content: ''; width: 7px; height: 7px; background: var(--case-accent, var(--orange)); border-radius: 50%; }
.case-title { max-width: 790px; font: 800 clamp(30px, 4vw, 52px)/1.16 var(--font-display); letter-spacing: -.07em; }
.case-job { flex: 0 0 170px; margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.case-job b { display: block; color: var(--ink); font: 10px var(--font-mono); letter-spacing: .06em; }
.case-summary { max-width: 780px; margin: 28px 0 0; font-size: 16px; line-height: 2; }
.case-content { display: grid; grid-template-columns: 134px minmax(0, 1fr); gap: 28px; max-width: 1160px; margin: 44px auto 0; }
.case-empty { display: block; }
.case-body { min-width: 0; }
.goal-solution { display: grid; grid-template-columns: .9fr 1.2fr; gap: 1px; border: 1px solid var(--ink); background: var(--ink); }
.goal-solution article { min-height: 188px; padding: 26px; background: var(--paper); }
.goal-solution article:last-child { background: var(--case-pale, var(--orange-soft)); }
.module-label { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; color: var(--orange); font: 10px/1 var(--font-mono); letter-spacing: .08em; }
.module-label::before { content: ''; width: 18px; height: 1px; background: currentColor; }
.goal-solution h3 { max-width: 430px; font: 700 19px/1.45 var(--font-display); letter-spacing: -.04em; }
.goal-solution p { margin: 12px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.feature-heading { display: flex; justify-content: space-between; align-items: baseline; margin: 54px 0 16px; }
.feature-heading h3 { font: 800 22px/1.2 var(--font-display); letter-spacing: -.05em; }
.feature-heading span { color: var(--muted); font: 10px var(--font-mono); letter-spacing: .08em; }
.feature-list { border-top: 1px solid var(--line); }
.feature-row { display: grid; grid-template-columns: 28px minmax(170px, .8fr) minmax(0, 1.65fr); gap: 16px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.feature-row .feature-index { color: var(--orange); font: 11px/1.5 var(--font-mono); }
.feature-row h4 { margin: 0; font-size: 14px; line-height: 1.55; }
.feature-row p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 54px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.metric { padding: 23px 16px 24px 0; border-right: 1px solid var(--line); }
.metric + .metric { padding-left: 16px; }
.metric:last-child { border-right: 0; }
.metric b { display: block; color: var(--case-accent, var(--orange)); font: 800 clamp(26px, 3vw, 40px)/1 var(--font-display); letter-spacing: -.09em; }
.metric span { display: block; margin-top: 9px; color: var(--muted); font-size: 11px; line-height: 1.55; }
.result-banner { display: grid; grid-template-columns: 160px 1fr; gap: 18px; align-items: center; margin-top: 30px; padding: 22px 24px; background: var(--ink); color: white; }
.result-banner span { color: var(--lime); font: 10px/1.3 var(--font-mono); letter-spacing: .08em; }
.result-banner p { margin: 0; font-size: 14px; line-height: 1.75; }
.challenge { display: grid; grid-template-columns: 134px 1fr; gap: 14px; margin-top: 30px; padding-top: 25px; border-top: 1px solid var(--line); }
.challenge h3 { color: var(--orange); font: 600 11px/1.5 var(--font-mono); letter-spacing: .06em; }
.challenge p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.case-study:nth-child(2n) { background: #fbfaf6; }
.case-study[data-kind='transaction'] { --case-accent: #ff6b35; --case-pale: #fff0e8; }
.case-study[data-kind='ecosystem'] { --case-accent: #7765e8; --case-pale: #f0edff; }
.case-study[data-kind='local'] { --case-accent: #13875d; --case-pale: #e5f7ed; }
.case-study[data-kind='enterprise'] { --case-accent: #1876bd; --case-pale: #e8f4ff; }
.case-study[data-kind='ai'] { --case-accent: #c28005; --case-pale: #fff5d4; }

.capabilities { padding: clamp(70px, 9vw, 130px) clamp(28px, 7vw, 112px) 0; background: var(--ink); color: white; }
.section-number { display: flex; align-items: center; gap: 13px; color: var(--orange); font: 800 44px/.8 var(--font-display); letter-spacing: -.08em; }
.section-number span { color: #a9a9a9; font: 10px/1 var(--font-mono); letter-spacing: .08em; }
.capability-header { display: grid; grid-template-columns: 1.4fr .65fr; gap: 50px; max-width: 1160px; margin: 50px auto 0; }
.capability-header h2 { font: 800 clamp(36px, 5vw, 65px)/1.13 var(--font-display); letter-spacing: -.08em; }
.capability-header > p { align-self: end; margin: 0 0 8px; color: #b9b9b9; font-size: 14px; line-height: 1.9; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1160px; margin: 58px auto 0; border-top: 1px solid #575757; }
.capability-grid article { min-height: 240px; padding: 22px 20px 28px 0; border-right: 1px solid #575757; }
.capability-grid article + article { padding-left: 20px; }
.capability-grid article:last-child { border-right: 0; }
.capability-grid span { color: var(--orange); font: 10px var(--font-mono); }
.capability-grid h3 { margin-top: 62px; font: 700 20px/1.3 var(--font-display); letter-spacing: -.04em; }
.capability-grid p { margin: 11px 0 0; color: #b9b9b9; font-size: 12px; line-height: 1.8; }
.closing-statement { display: flex; align-items: center; gap: 13px; max-width: 1160px; margin: 0 auto; padding: 42px 0; border-top: 1px solid #575757; }
.closing-statement p { margin: 0; font: 600 17px/1.7 var(--font-display); }
.site-footer { display: grid; grid-template-columns: 1fr 1fr auto; gap: 24px; align-items: center; padding: 25px clamp(28px, 7vw, 112px); color: #989898; background: #101010; border-top: 1px solid #3b3b3b; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: white; font: 800 12px var(--font-display); letter-spacing: .04em; }
.footer-logo { width: 132px; padding: 6px 8px; background: white; }
.site-footer p { margin: 0; font: 10px/1.5 var(--font-mono); }
.footer-top { color: white; font: 10px var(--font-mono); letter-spacing: .06em; white-space: nowrap; }
.footer-top span { margin-left: 7px; color: var(--orange); font-size: 15px; }
.back-to-top { position: fixed; z-index: 30; right: 24px; bottom: 24px; display: grid; place-items: center; width: 42px; height: 42px; color: white; border: 0; border-radius: 50%; background: var(--orange); box-shadow: 0 8px 22px rgba(255, 107, 53, .25); opacity: 0; transform: translateY(10px); pointer-events: none; transition: opacity .2s, transform .2s, background .2s; }
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--ink); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes counterspin { to { transform: rotate(-360deg); } }
@media (max-width: 1100px) {
  :root { --rail: 210px; }
  .rail { padding-right: 16px; padding-left: 16px; }
  .hero-main { gap: 35px; }
  .case-head, .case-content { grid-template-columns: 102px minmax(0, 1fr); }
  .case-job { flex-basis: 145px; }
}
@media (max-width: 820px) {
  :root { --rail: 0px; }
  .site-shell { display: block; }
  .rail { display: none; }
  .mobile-header { position: sticky; z-index: 60; top: 0; display: flex; justify-content: space-between; align-items: center; height: 66px; padding: 0 20px; border-bottom: 1px solid var(--line); background: rgba(255, 253, 249, .95); backdrop-filter: blur(12px); }
  .mobile-brand { gap: 9px; font: 800 11px var(--font-display); letter-spacing: .04em; }
  .brand-logo-mobile { width: 128px; }
  .menu-button { display: grid; align-content: center; gap: 5px; width: 38px; height: 36px; padding: 0 9px; border: 1px solid var(--ink); background: transparent; }
  .menu-button span:not(.sr-only) { display: block; width: 100%; height: 1px; background: var(--ink); transition: transform .2s; }
  .menu-button[aria-expanded='true'] span:first-child { transform: translateY(3px) rotate(45deg); }
  .menu-button[aria-expanded='true'] span:nth-child(2) { transform: translateY(-3px) rotate(-45deg); }
  .mobile-nav { position: fixed; z-index: 50; top: 66px; right: 0; left: 0; padding: 15px 20px 18px; border-bottom: 1px solid var(--line); background: var(--paper); box-shadow: 0 10px 20px rgba(20,20,20,.08); }
  .mobile-nav:not([hidden]) { display: grid; gap: 2px; }
  .mobile-nav a { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 700; }
  .hero { min-height: auto; padding: 68px 24px 0; }
  .hero-main { grid-template-columns: 1fr; gap: 32px; min-height: 0; }
  .hero h1 { font-size: clamp(39px, 11.2vw, 64px); }
  .hero-index { width: 185px; height: 185px; margin: 0 0 0 auto; }
  .index-orbit { width: 92px; height: 92px; }
  .index-orbit span { font-size: 30px; }
  .index-top b { font-size: 22px; }
  .hero-index p { font-size: 7px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); margin-top: 48px; }
  .hero-stats article:nth-child(2) { border-right: 0; }
  .hero-stats article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .hero-stats article:nth-child(3) { padding-left: 0; }
  .control-strip { top: 66px; gap: 14px; padding: 12px 24px; }
  .control-intro { display: none; }
  .filter-list { width: 100%; }
  .case-study { padding: 68px 24px; }
  .case-head, .case-content { grid-template-columns: 1fr; gap: 18px; }
  .case-number { position: static; font-size: 38px; }
  .case-number span { display: inline; margin: 0 0 0 10px; }
  .case-title-row { display: block; }
  .case-job { margin-top: 20px; }
  .case-summary { font-size: 14px; }
  .case-empty { display: none; }
  .goal-solution { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 22px 1fr; gap: 9px; }
  .feature-row p { grid-column: 2; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .metric:nth-child(3) { padding-left: 0; }
  .result-banner { grid-template-columns: 1fr; gap: 8px; }
  .challenge { grid-template-columns: 1fr; gap: 8px; }
  .capabilities { padding: 72px 24px 0; }
  .capability-header { grid-template-columns: 1fr; gap: 24px; margin-top: 38px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); margin-top: 40px; }
  .capability-grid article:nth-child(2) { border-right: 0; }
  .capability-grid article:nth-child(-n+2) { border-bottom: 1px solid #575757; }
  .capability-grid article:nth-child(3) { padding-left: 0; }
  .capability-grid h3 { margin-top: 38px; }
  .site-footer { grid-template-columns: 1fr; gap: 15px; padding: 24px; }
  .footer-top { justify-self: start; }
}
@media (max-width: 420px) {
  .hero { padding-right: 20px; padding-left: 20px; }
  .hero-actions { flex-wrap: wrap; gap: 18px; }
  .hero-description { font-size: 13px; }
  .case-study { padding-right: 20px; padding-left: 20px; }
  .case-title { font-size: 30px; }
  .goal-solution article { padding: 20px; }
  .metrics { margin-top: 38px; }
  .metric { padding-top: 17px; padding-bottom: 18px; }
  .metric b { font-size: 29px; }
  .capabilities { padding-right: 20px; padding-left: 20px; }
  .capability-grid { display: block; }
  .capability-grid article, .capability-grid article + article { min-height: auto; padding: 20px 0; border-right: 0; border-bottom: 1px solid #575757; }
  .capability-grid h3 { margin-top: 25px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}