:root {
  color-scheme: light;
  --ink: #102226;
  --ink-soft: #3e5457;
  --paper: #f4f4ed;
  --line: #d9dfd7;
  --lime: #b7dc55;
  --white: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--paper); }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid #80ac23; outline-offset: 4px; }
button, input { font: inherit; }
::selection { color: var(--ink); background: var(--lime); }
.shell { width: min(100% - 64px, 1240px); margin-inline: auto; }
.skip-link { position: absolute; z-index: 30; top: -80px; left: 20px; padding: 12px 18px; background: var(--lime); color: var(--ink); }
.skip-link:focus { top: 20px; }

.site-header { position: relative; z-index: 10; background: var(--ink); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.13); }
.header-inner { min-height: 88px; display: flex; align-items: center; gap: 38px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid rgba(183,220,85,.75); border-radius: 10px; color: var(--lime); font-size: 16px; font-weight: 800; letter-spacing: -.12em; padding-right: 3px; }
.brand-mark span { color: #f7f5ed; padding: 0 2px; }
.brand-name { display: flex; flex-direction: column; gap: 3px; font-size: 17px; font-weight: 780; letter-spacing: .08em; line-height: 1; }
.brand-name-cn { font-size: 11px; font-weight: 500; letter-spacing: .18em; color: #c3d2cd; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 34px; }
.site-nav a { color: #c9d4d1; font-size: 14px; transition: color .2s ease; }
.site-nav a:hover { color: var(--lime); }
.header-contact { flex-shrink: 0; margin-left: 5px; padding: 11px 19px; border: 1px solid rgba(255,255,255,.3); border-radius: 4px; font-size: 13px; font-weight: 650; transition: background .2s ease, color .2s ease; }
.header-contact:hover { background: var(--lime); color: var(--ink); border-color: var(--lime); }

.hero { position: relative; overflow: hidden; min-height: 682px; background: var(--ink); color: var(--white); }
.hero-grid { position: absolute; inset: 0; pointer-events: none; opacity: .45; background-image: linear-gradient(rgba(178,205,191,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(178,205,191,.08) 1px, transparent 1px); background-size: 92px 92px; mask-image: linear-gradient(90deg, transparent 5%, #000 55%); }
.hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); align-items: center; min-height: 590px; gap: 38px; }
.hero-copy { padding: 44px 0 56px; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 30px; color: #b8cbc4; font-size: 13px; letter-spacing: .07em; }
.eyebrow-line { width: 27px; height: 1px; background: var(--lime); }
.hero h1 { margin: 0; font-size: clamp(58px, 6.5vw, 95px); line-height: 1.15; font-weight: 740; letter-spacing: -.065em; }
.hero-description { max-width: 540px; margin: 30px 0 0; color: #c5d4ce; font-size: 18px; line-height: 1.95; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 37px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 38px; min-height: 50px; padding: 0 21px; border-radius: 3px; font-size: 14px; font-weight: 680; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--lime); color: var(--ink); }
.button-primary:hover { background: #c9eb74; }
.button-secondary { border: 1px solid rgba(255,255,255,.36); color: var(--white); }
.button-secondary:hover { background: rgba(255,255,255,.1); }
.hero-art { display: flex; align-items: center; justify-content: center; min-height: 500px; }
.hero-art-frame { position: relative; display: flex; flex-direction: column; justify-content: space-between; width: min(100%, 480px); aspect-ratio: 1 / 1; padding: 25px 28px; border: 1px solid rgba(183,220,85,.52); border-radius: 50%; transform: rotate(-9deg); background: radial-gradient(circle at 64% 25%, rgba(183,220,85,.13), transparent 38%), radial-gradient(circle at 26% 75%, rgba(91,151,149,.2), transparent 45%); }
.hero-art-frame::before, .hero-art-frame::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(183,220,85,.22); }
.hero-art-frame::before { inset: 24px; }
.hero-art-frame::after { inset: 65px; }
.hero-art-top, .hero-art-bottom { position: relative; z-index: 1; align-self: center; font-size: 10px; font-weight: 650; letter-spacing: .2em; color: #a8bdb2; transform: rotate(9deg); }
.hero-art-bottom { letter-spacing: .13em; text-align: center; }
.hero-art-core { position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; gap: 10px; flex: 1; font-size: clamp(125px, 14vw, 220px); font-weight: 750; line-height: 1; letter-spacing: -.1em; color: var(--lime); transform: rotate(9deg); }
.hero-art-core span:last-child { color: #eef6e0; transform: translateY(35px); }
.hero-foot { position: relative; display: flex; align-items: center; gap: 24px; padding: 0 0 30px; color: #8fa69d; font-size: 11px; font-weight: 600; letter-spacing: .17em; }
.hero-foot-rule { width: 54px; height: 1px; background: #5d746d; }

.section { scroll-margin-top: 24px; }
.services { padding: 112px 0 124px; }
.section-heading { display: grid; grid-template-columns: 1.4fr .6fr; align-items: end; gap: 64px; margin-bottom: 72px; }
.section-kicker { margin: 0 0 27px; color: #50715e; font-size: 12px; font-weight: 750; letter-spacing: .15em; }
.section-heading h2, .about h2, .contact h2 { margin: 0; font-size: clamp(32px, 4vw, 53px); line-height: 1.38; font-weight: 730; letter-spacing: -.045em; }
.section-intro { max-width: 340px; margin: 0 0 7px; color: var(--ink-soft); font-size: 16px; line-height: 1.9; }
.service-list { border-top: 1px solid #aab9ae; }
.service-row { display: grid; grid-template-columns: 110px minmax(0, 1fr) 54px; align-items: start; gap: 28px; padding: 43px 18px 44px 0; border-bottom: 1px solid #b9c8bd; }
.service-number { padding-top: 9px; color: #62816f; font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.service-main { display: grid; grid-template-columns: minmax(190px, .7fr) minmax(280px, 1fr); gap: 28px; align-items: start; }
.service-main h3 { margin: 0; font-size: 28px; line-height: 1.4; font-weight: 710; letter-spacing: -.035em; }
.service-main p { max-width: 540px; margin: 3px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.9; }
.service-symbol { color: #799b45; font-size: 26px; font-weight: 400; line-height: 1; text-align: right; }

.about { padding: 112px 0 122px; background: #e6ece5; }
.about-grid { display: grid; grid-template-columns: minmax(250px, .56fr) minmax(0, 1fr); gap: 95px; }
.about-label { display: flex; flex-direction: column; justify-content: space-between; }
.about-index { color: #cbd9ca; font-size: clamp(110px, 17vw, 250px); font-weight: 800; line-height: .8; letter-spacing: -.14em; }
.about-index span { color: #a5c176; }
.about-copy h2 { margin-bottom: 32px; }
.about-copy > p { max-width: 675px; margin: 0; color: #3d5852; font-size: 18px; line-height: 2; }
.about-line { height: 1px; margin: 53px 0 24px; background: #b5c7b8; }
.about-facts { margin: 0; }
.about-facts div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 15px 0; }
.about-facts dt { color: #6d8678; font-size: 13px; }
.about-facts dd { margin: 0; font-size: 15px; font-weight: 650; }

.contact { padding: 120px 0 124px; background: #d8e9ad; }
.contact-grid { display: grid; grid-template-columns: 1fr .75fr; gap: 80px; align-items: start; }
.contact .section-kicker { color: #446136; }
.contact h2 { font-size: clamp(40px, 5.3vw, 70px); line-height: 1.24; }
.contact-intro { max-width: 460px; margin: 27px 0 0; color: #425740; font-size: 17px; line-height: 1.9; }
.contact-card { padding: 6px 0 0; border-top: 1px solid #8dab76; }
.contact-item { display: flex; flex-direction: column; gap: 9px; padding: 26px 0 28px; border-bottom: 1px solid #8dab76; }
.contact-label { color: #4d6548; font-size: 13px; font-weight: 650; }
.contact-item a { width: fit-content; font-size: clamp(20px, 2.2vw, 27px); font-weight: 680; letter-spacing: -.03em; overflow-wrap: anywhere; }
.contact-item a:hover { text-decoration: underline; text-underline-offset: 5px; }
.contact-action { display: inline-flex; align-items: center; justify-content: space-between; gap: 70px; margin-top: 31px; min-width: 220px; padding: 14px 18px; border-radius: 3px; background: var(--ink); color: #fff; font-size: 14px; font-weight: 650; }
.contact-action:hover { background: #25423f; }
.site-footer { background: var(--ink); color: #b1c3bb; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 96px; font-size: 12px; }
.footer-brand { color: #f1f5ee; font-size: 18px; font-weight: 800; letter-spacing: .08em; }
.footer-inner a:hover { color: var(--lime); }

@media (max-width: 1020px) {
  .hero-inner { grid-template-columns: 1fr .8fr; gap: 10px; }
  .hero-art { min-height: 440px; }
  .hero-art-frame { width: min(100%, 380px); }
  .hero-art-core { font-size: clamp(125px, 14vw, 190px); }
  .section-heading { grid-template-columns: 1fr .6fr; gap: 34px; }
  .service-main { grid-template-columns: minmax(140px, .6fr) 1fr; gap: 20px; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 36px, 620px); }
  .header-inner { min-height: 72px; }
  .site-nav { display: none; }
  .header-contact { margin-left: auto; padding: 10px 13px; font-size: 12px; }
  .hero { min-height: 0; }
  .hero-inner { display: flex; flex-direction: column; align-items: stretch; min-height: 0; gap: 0; }
  .hero-copy { padding: 80px 0 24px; }
  .eyebrow { font-size: 12px; margin-bottom: 25px; }
  .hero h1 { font-size: clamp(52px, 11vw, 76px); }
  .hero-description { margin-top: 24px; font-size: 16px; }
  .hero-actions { margin-top: 28px; }
  .hero-art { min-height: 360px; margin-top: 8px; }
  .hero-art-frame { width: min(100%, 330px); padding: 20px; }
  .hero-art-core { font-size: 144px; }
  .hero-foot { padding-bottom: 25px; }
  .services, .about, .contact { padding: 76px 0 84px; }
  .section-heading, .about-grid, .contact-grid { display: block; }
  .section-heading { margin-bottom: 45px; }
  .section-heading h2, .about h2 { font-size: clamp(31px, 7vw, 43px); }
  .section-intro { max-width: 100%; margin-top: 24px; }
  .service-row { grid-template-columns: 38px 1fr 25px; gap: 14px; padding: 30px 0; }
  .service-number { padding-top: 6px; }
  .service-main { display: block; }
  .service-main h3 { font-size: 24px; }
  .service-main p { margin-top: 11px; font-size: 15px; }
  .service-symbol { font-size: 22px; }
  .about-index { display: none; }
  .about-copy { margin-top: 35px; }
  .about-copy > p { font-size: 16px; }
  .about-line { margin-top: 35px; }
  .about-facts div { grid-template-columns: 85px 1fr; }
  .contact h2 { font-size: clamp(38px, 9vw, 58px); }
  .contact-card { margin-top: 46px; }
  .contact-item a { font-size: 21px; }
  .footer-inner { flex-wrap: wrap; justify-content: space-between; padding: 24px 0; min-height: 0; }
  .footer-inner span:nth-child(2) { order: 3; width: 100%; }
}

@media (max-width: 390px) {
  .brand-name-cn { display: none; }
  .brand-mark { width: 39px; height: 39px; }
  .brand-name { font-size: 15px; }
  .header-contact { padding: 9px 10px; }
  .hero-art { min-height: 300px; }
  .hero-art-frame { width: min(100%, 280px); }
  .hero-art-core { font-size: 125px; }
  .hero-art-top, .hero-art-bottom { font-size: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .header-contact, .site-nav a { transition: none; }
}