:root {
  --paper: #f6f5f0;
  --paper-dark: #e9ebe5;
  --ink: #173b3e;
  --ink-deep: #102d30;
  --muted: #5e7473;
  --line: #d7ded9;
  --orange: #e88b65;
  --cream: #f7efe7;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: var(--paper); color: var(--ink-deep); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid var(--orange); outline-offset: 5px; }
::selection { background: var(--orange); color: var(--ink-deep); }
.container { width: min(100% - 80px, 1320px); margin-inline: auto; }
.skip-link { position: absolute; z-index: 30; left: 16px; top: -80px; padding: 12px 18px; background: var(--ink); color: white; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(23, 59, 62, .13); background: rgba(246,245,240,.95); backdrop-filter: blur(18px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 82px; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.brand-logo { display: block; width: 52px; height: auto; }
.brand-company { color: var(--ink); font-size: 13px; font-weight: 750; letter-spacing: .08em; white-space: nowrap; }
.site-nav { display: flex; align-items: center; gap: clamp(16px, 2.5vw, 38px); font-size: 13px; font-weight: 600; }
.site-nav a { transition: color .2s ease; white-space: nowrap; }
.site-nav a:hover { color: #b65e3a; }
.nav-contact { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 44px; padding: 0 16px; background: var(--ink); color: white; font-size: 12px; font-weight: 700; white-space: nowrap; transition: background .2s ease, transform .2s ease; }
.nav-contact:hover, .button-primary:hover { background: #285558; transform: translateY(-2px); }
.nav-contact span { font-size: 18px; font-weight: 400; }
.hero { position: relative; min-height: min(820px, calc(100vh - 82px)); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 82% 20%, #e7eee7 0%, transparent 41%), linear-gradient(90deg, transparent 49.95%, rgba(23,59,62,.07) 50%, transparent 50.05%); }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr); min-height: 690px; align-items: center; gap: 7%; padding-top: 50px; padding-bottom: 78px; }
.hero-copy { padding: 20px 0 0; }
.eyebrow, .section-kicker, .label-index { display: flex; align-items: center; gap: 12px; margin: 0; font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow { margin-bottom: 34px; color: var(--muted); }
.eyebrow-line { display: inline-block; width: 28px; height: 2px; background: var(--orange); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 750px; margin-bottom: 25px; font-size: clamp(56px, 5.4vw, 86px); line-height: 1.17; letter-spacing: -.065em; font-weight: 760; }
h1 em, .contact-section h2 em { display: inline; font-style: normal; color: #b96847; }
.hero-period { color: var(--orange); }
.hero-lead { max-width: 545px; margin-bottom: 34px; color: #526a69; font-size: clamp(16px, 1.3vw, 19px); line-height: 1.95; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 27px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; min-height: 56px; padding: 0 22px; font-size: 13px; font-weight: 700; transition: background .2s ease, transform .2s ease; }
.button-primary { background: var(--ink); color: white; }
.button span { font-size: 20px; font-weight: 400; }
.text-link { font-size: 13px; font-weight: 700; border-bottom: 1px solid var(--ink); padding: 13px 0 7px; }
.text-link span { margin-left: 7px; }
.hero-note { display: flex; flex-wrap: wrap; align-items: center; gap: 11px; margin-top: 65px; color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: .08em; }
.note-dot, .prompt-dot { width: 7px; height: 7px; flex: none; border-radius: 50%; background: var(--orange); }
.note-divider { opacity: .45; }
.hero-visual { position: relative; align-self: center; min-height: 470px; padding: 28px 28px 20px; overflow: hidden; background: #183d40; color: white; box-shadow: 35px 35px 0 rgba(23,59,62,.08); }
.hero-visual::after { content: ""; position: absolute; right: -120px; bottom: -160px; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(232,139,101,.18), transparent 70%); }
.visual-topline, .visual-footer { position: relative; z-index: 2; display: flex; justify-content: space-between; color: #b9d0ca; font-size: 10px; font-weight: 700; letter-spacing: .17em; }
.visual-footer { margin-top: 32px; color: #93b5ac; }
.visual-orbit { position: absolute; width: 360px; height: 360px; border: 1px solid rgba(167,199,185,.14); border-radius: 50%; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.orbit-two { width: 500px; height: 500px; }
.flow-card { position: relative; z-index: 1; display: grid; grid-template-columns: 33px 1fr 25px; align-items: start; gap: 12px; margin-top: 28px; min-height: 89px; padding: 18px; border: 1px solid rgba(221,237,231,.22); background: rgba(246,245,240,.08); backdrop-filter: blur(6px); }
.flow-card:first-of-type { margin-top: 38px; }
.flow-two { margin-left: 28px; background: #f4ede5; color: var(--ink); border-color: #f4ede5; }
.flow-three { margin-left: 56px; }
.flow-number { color: var(--orange); font-size: 11px; font-weight: 800; }
.flow-card small, .flow-card strong { display: block; }
.flow-card small { margin-bottom: 8px; font-size: 11px; color: #a9c4bd; }
.flow-two small { color: #6b8179; }
.flow-card strong { font-size: clamp(14px, 1.25vw, 18px); font-weight: 650; letter-spacing: -.02em; }
.flow-arrow { font-size: 20px; color: var(--orange); }
.hero-bottom { position: relative; display: flex; align-items: center; justify-content: space-between; padding-bottom: 22px; color: #657977; font-size: 11px; font-weight: 650; letter-spacing: .08em; }
.hero-bottom a { color: var(--ink); }
.intro-section, .scenarios-section, .delivery-section, .about-section { padding: clamp(90px, 10vw, 150px) 0; }
.intro-section { background: var(--paper-dark); }
.intro-grid { display: grid; grid-template-columns: 25% 1fr; gap: 5%; }
.section-label { display: flex; align-items: center; gap: 20px; align-self: start; padding-top: 13px; color: #6a807b; }
.label-line { width: 36px; height: 1px; background: var(--orange); }
.section-title { margin-bottom: 24px; font-size: clamp(39px, 4vw, 62px); line-height: 1.28; letter-spacing: -.06em; font-weight: 730; }
.section-title .title-muted { color: #738e86; }
.section-lead { max-width: 760px; margin-bottom: 54px; color: #536c69; font-size: 16px; line-height: 2; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; border-top: 1px solid #bdccc4; }
.principles > div { padding-top: 26px; }
.principles span { display: block; margin-bottom: 44px; color: #bd6d4c; font-size: 12px; font-weight: 800; }
.principles strong { display: block; margin-bottom: 11px; font-size: 18px; }
.principles p { max-width: 225px; margin-bottom: 0; color: #617671; font-size: 13px; line-height: 1.8; }
.section-heading-row { display: flex; justify-content: space-between; align-items: end; gap: 45px; margin-bottom: 47px; }
.section-kicker { margin-bottom: 22px; color: #ad6143; }
.section-heading-row .section-title { margin-bottom: 0; }
.heading-aside { max-width: 285px; margin-bottom: 5px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.scenario-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; }
.scenario-card { display: flex; flex-direction: column; justify-content: space-between; min-height: 390px; padding: 25px 24px 22px; background: #e9eee8; border: 1px solid #e0e8df; transition: transform .25s ease, background .25s ease; }
.scenario-card:nth-child(2) { background: #eeeae1; border-color: #e8e2d6; }
.scenario-card:nth-child(3) { background: #e6eae8; border-color: #dde2df; }
.scenario-card:nth-child(4) { background: #ebe9e2; border-color: #e2dfd5; }
.scenario-card:hover { transform: translateY(-6px); background: #dfe8df; }
.card-top { display: flex; justify-content: space-between; align-items: start; gap: 8px; color: #536c66; font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.card-symbol { color: #ba6f52; font-size: 26px; line-height: .8; font-weight: 400; letter-spacing: -.1em; }
.scenario-card h3 { margin-bottom: 14px; font-size: clamp(23px, 2.1vw, 30px); letter-spacing: -.04em; }
.scenario-card p { margin-bottom: 23px; color: #4f6662; font-size: 13px; line-height: 1.9; }
.card-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.card-tags span { padding: 6px 8px; border: 1px solid rgba(23,59,62,.16); color: #4c6660; font-size: 10px; font-weight: 650; white-space: nowrap; }
.scenario-footnote { margin: 20px 0 0; color: #7c9089; font-size: 11px; }
.delivery-section { background: var(--ink); color: white; }
.delivery-section .section-kicker { color: #f4a17c; }
.delivery-heading .heading-aside { color: #b8cec7; }
.delivery-heading .section-title .title-muted { color: #91b9ae; }
.delivery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.delivery-card { display: flex; flex-direction: column; min-height: 480px; padding: clamp(28px, 3vw, 48px); }
.build-card { background: #f3eee5; color: var(--ink); }
.evolve-card { background: #d6e2d8; color: var(--ink); }
.delivery-card-top { display: flex; justify-content: space-between; align-items: start; gap: 20px; margin-bottom: 75px; }
.delivery-number { font-size: 36px; line-height: 1; font-weight: 750; letter-spacing: -.08em; color: #ba6e50; }
.delivery-type { font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.delivery-card h3 { margin-bottom: 22px; font-size: clamp(28px, 2.7vw, 40px); line-height: 1.36; letter-spacing: -.06em; }
.delivery-card > p { max-width: 500px; margin-bottom: 40px; color: #526965; font-size: 14px; line-height: 1.9; }
.delivery-output { display: grid; grid-template-columns: 70px 1fr; gap: 18px; margin-top: auto; padding-top: 19px; border-top: 1px solid rgba(23,59,62,.2); }
.delivery-output span { font-size: 11px; color: #ab6246; font-weight: 750; }
.delivery-output strong { font-size: 12px; font-weight: 600; line-height: 1.8; }
.delivery-path { display: flex; align-items: center; gap: 24px; margin-top: 34px; color: #c8dbd5; font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.delivery-path i { height: 1px; width: 45px; background: #88aa9e; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10%; }
.about-copy { max-width: 565px; padding-top: 45px; }
.about-copy p { margin-bottom: 23px; color: #526b68; font-size: 16px; line-height: 2; }
.about-signature { display: flex; align-items: baseline; gap: 16px; margin-top: 55px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 22px; font-weight: 800; letter-spacing: .03em; }
.about-signature span { color: #76928a; font-size: 10px; letter-spacing: .15em; }
.contact-section { position: relative; overflow: hidden; padding: 105px 0 115px; background: #ead8c9; }
.contact-section::after { content: "L"; position: absolute; right: -30px; bottom: -235px; color: rgba(23,59,62,.055); font-size: 600px; line-height: 1; font-weight: 900; pointer-events: none; }
.contact-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 10%; align-items: end; }
.contact-section h2 { margin: 0; font-size: clamp(43px, 4.7vw, 72px); line-height: 1.23; letter-spacing: -.065em; }
.contact-copy { max-width: 470px; }
.contact-copy > p { margin-bottom: 28px; color: #4d6762; font-size: 16px; line-height: 1.9; }
.contact-email { display: inline-flex; align-items: center; gap: 23px; padding-bottom: 11px; border-bottom: 2px solid var(--ink); font-size: clamp(18px, 2vw, 27px); font-weight: 700; letter-spacing: -.03em; overflow-wrap: anywhere; }
.contact-email span { font-size: 22px; font-weight: 400; }
.contact-email:hover { color: #a55435; border-color: #a55435; }
.contact-prompt { display: flex; align-items: center; gap: 10px; margin-top: 26px; color: #657e76; font-size: 11px; letter-spacing: .08em; }
.site-footer { padding: 33px 0; background: var(--paper); color: var(--ink); border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; align-items: end; gap: 30px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { display: block; width: 52px; height: auto; }
.footer-brand > span, .footer-meta { color: #9db6ad; font-size: 11px; }
.footer-meta { display: flex; gap: 25px; }
.footer-meta a:hover { color: var(--ink); }
@media (max-width: 1050px) {
  .container { width: min(100% - 48px, 1320px); }
  .site-nav { gap: 14px; }
  .hero-grid { gap: 4%; }
  .hero-visual { min-height: 430px; }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-card { min-height: 330px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 125px; }
  .container { width: min(100% - 36px, 1320px); }
  .header-inner { min-height: 70px; flex-wrap: wrap; gap: 0; padding-top: 8px; }
  .brand-logo { width: 42px; }
  .brand-company { font-size: 12px; }
  .nav-contact { margin-left: auto; min-height: 35px; padding: 0 10px; gap: 8px; font-size: 10px; }
  .nav-contact span { font-size: 15px; }
  .site-nav { order: 3; width: 100%; justify-content: space-between; gap: 8px; overflow-x: auto; padding: 12px 0; white-space: nowrap; font-size: 11px; }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; min-height: auto; padding-top: 74px; padding-bottom: 65px; }
  .hero-copy { padding: 0; }
  .eyebrow { margin-bottom: 22px; font-size: 9px; }
  h1 { font-size: clamp(48px, 11vw, 70px); }
  .hero-lead { font-size: 15px; }
  .hero-note { margin-top: 43px; }
  .hero-visual { min-height: 400px; max-width: 540px; width: 100%; box-shadow: 15px 15px 0 rgba(23,59,62,.08); }
  .hero-bottom { padding-bottom: 20px; font-size: 10px; }
  .intro-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .section-label { padding-top: 0; }
  .intro-section, .scenarios-section, .delivery-section, .about-section { padding: 85px 0; }
  .section-heading-row { align-items: start; flex-direction: column; gap: 18px; }
  .heading-aside { max-width: 520px; }
  .principles { gap: 15px; }
  .principles span { margin-bottom: 26px; }
  .about-copy { padding-top: 0; }
  .contact-section { padding: 85px 0; }
  .contact-section::after { right: -40px; bottom: -100px; font-size: 360px; }
}
@media (max-width: 600px) {
  .section-title { font-size: clamp(34px, 8vw, 47px); }
  .principles { grid-template-columns: 1fr; }
  .principles > div { display: grid; grid-template-columns: 34px 1fr; column-gap: 12px; border-bottom: 1px solid #bdccc4; padding: 16px 0; }
  .principles span { grid-row: span 2; margin-bottom: 0; }
  .principles p { max-width: none; }
  .scenario-grid, .delivery-grid { grid-template-columns: 1fr; }
  .scenario-card { min-height: 285px; }
  .delivery-card { min-height: 390px; }
  .delivery-card-top { margin-bottom: 55px; }
  .delivery-path { flex-wrap: wrap; gap: 12px; font-size: 10px; }
  .delivery-path i { width: 20px; }
  .contact-section h2 { font-size: clamp(43px, 10vw, 60px); }
  .footer-inner { align-items: start; flex-direction: column; }
  .footer-brand img { width: 44px; }
  .footer-meta { flex-wrap: wrap; gap: 10px 20px; }
}
@media (max-width: 420px) {
  .hero-grid { padding-top: 55px; }
  .hero-actions { gap: 18px; }
  .button { width: 100%; }
  .hero-visual { min-height: 365px; padding: 20px 17px; }
  .flow-card { margin-top: 23px; padding: 14px 10px; grid-template-columns: 25px 1fr 18px; gap: 6px; }
  .flow-two { margin-left: 14px; }
  .flow-three { margin-left: 28px; }
  .flow-card strong { font-size: 14px; }
  .visual-footer { font-size: 8px; }
  .hero-bottom span { max-width: 215px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}