:root {
  --ink: #1b241f;
  --green: #25382f;
  --green-soft: #51695c;
  --sage: #a9b6a7;
  --paper: #f3f1eb;
  --line: rgba(27, 36, 31, .16);
  --white: #fff;
  --pad: clamp(24px, 6vw, 96px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif; }
body.no-scroll { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.site-header { position: absolute; z-index: 20; top: 0; left: 0; width: 100%; height: 88px; padding: 0 var(--pad); display: flex; align-items: center; justify-content: space-between; color: var(--white); border-bottom: 1px solid rgba(255,255,255,.24); }
.brand { display: inline-flex; align-items: center; gap: 12px; letter-spacing: .12em; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid currentColor; font-family: Georgia, serif; font-size: 20px; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 16px; font-weight: 500; }
.brand small { margin-top: 4px; font-size: 8px; opacity: .7; letter-spacing: .18em; }
nav { display: flex; align-items: center; gap: clamp(24px, 3vw, 48px); font-size: 14px; }
nav a { position: relative; }
nav a:not(.nav-cta)::after { content: ""; position: absolute; right: 0; bottom: -8px; left: 0; height: 1px; background: currentColor; transform: scaleX(0); transition: .3s; }
nav a:hover::after { transform: scaleX(1); }
.nav-cta { padding: 11px 20px; border: 1px solid rgba(255,255,255,.62); }
.menu-button { display: none; background: none; border: 0; }
.hero { position: relative; min-height: 790px; height: 100vh; color: var(--white); overflow: hidden; }
.hero-media { position: absolute; inset: 0; background: url("assets/images/page-2.jpg") center/cover no-repeat; transform: scale(1.02); animation: heroZoom 16s ease-out forwards; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(17,30,23,.82) 0%, rgba(17,30,23,.42) 52%, rgba(17,30,23,.18) 100%), linear-gradient(0deg, rgba(10,18,13,.55), transparent 50%); }
.hero-content { position: absolute; top: 50%; left: var(--pad); max-width: 680px; transform: translateY(-47%); }
.eyebrow { margin: 0 0 24px; font-size: 12px; letter-spacing: .28em; text-transform: uppercase; }
.eyebrow.dark { color: var(--green-soft); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; font-family: Georgia, "STSong", serif; font-size: clamp(52px, 7.2vw, 104px); font-weight: 400; line-height: 1.08; letter-spacing: .04em; }
.hero-copy { max-width: 570px; font-size: clamp(16px, 1.5vw, 20px); line-height: 1.9; opacity: .88; }
.hero-actions { margin-top: 38px; display: flex; align-items: center; gap: 32px; }
.button { display: inline-block; padding: 16px 25px; }
.button-light { background: var(--white); color: var(--green); }
.text-link { font-size: 14px; }
.text-link span { display: inline-block; margin-left: 8px; transition: transform .25s; }
.text-link:hover span { transform: translateX(5px); }
.hero-facts { position: absolute; right: var(--pad); bottom: 52px; display: flex; border-top: 1px solid rgba(255,255,255,.32); }
.hero-facts div { min-width: 150px; padding: 20px 20px 0 0; }
.hero-facts strong, .hero-facts span { display: block; }
.hero-facts strong { font-family: Georgia, serif; font-size: 26px; font-weight: 400; }
.hero-facts sup { font-size: 14px; }
.hero-facts span { margin-top: 6px; font-size: 11px; opacity: .7; }
.scroll-cue { position: absolute; left: 24px; bottom: 50px; font-size: 8px; letter-spacing: .2em; writing-mode: vertical-rl; opacity: .72; }
.scroll-cue i { height: 42px; width: 1px; display: inline-block; margin-top: 12px; background: currentColor; }
.section { padding: clamp(90px, 12vw, 170px) var(--pad); }
.intro { display: grid; grid-template-columns: 1fr 1fr; column-gap: 8vw; }
.section-heading h2, .project-heading h2, .feature h2, .about h2, .contact h2 { margin-bottom: 0; font-family: Georgia, "STSong", serif; font-size: clamp(36px, 4.4vw, 64px); font-weight: 400; line-height: 1.25; letter-spacing: .03em; }
.intro-copy { align-self: end; max-width: 610px; color: #526058; line-height: 2; }
.service-grid { grid-column: 1 / -1; margin-top: 72px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.service-card { position: relative; min-height: 290px; padding: 30px 30px 30px 0; border-right: 1px solid var(--line); transition: .35s; }
.service-card:not(:first-child) { padding-left: 30px; }
.service-card:last-child { border-right: 0; }
.service-card > span { color: var(--green-soft); font: 14px Georgia, serif; }
.service-card h3 { margin: 65px 0 18px; font-size: 20px; font-weight: 500; }
.service-card p { color: #667169; font-size: 14px; line-height: 1.9; }
.service-card i { position: absolute; right: 24px; bottom: 28px; font-style: normal; opacity: 0; transition: .3s; }
.service-card:hover { background: rgba(255,255,255,.42); }
.service-card:hover i { opacity: 1; }
.projects { padding-top: 0; }
.project-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 55px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.filter { padding: 9px 16px; border: 1px solid var(--line); background: transparent; font-size: 13px; cursor: pointer; }
.filter.active { color: var(--white); background: var(--green); }
.project-grid { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: 260px; gap: 18px; }
.project-card { position: relative; grid-column: span 4; padding: 0; overflow: hidden; border: 0; background: #d6d9d3; text-align: left; cursor: pointer; }
.project-card.large { grid-column: span 8; grid-row: span 2; }
.project-card.wide { grid-column: span 8; }
.project-card img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .7s ease; }
.project-overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(13,24,18,.75), transparent 55%); }
.project-meta { position: absolute; left: 28px; bottom: 25px; color: var(--white); }
.project-meta small, .project-meta strong { display: block; }
.project-meta small { margin-bottom: 8px; font-size: 11px; opacity: .7; letter-spacing: .16em; }
.project-meta strong { font-family: Georgia, "STSong", serif; font-size: 23px; font-weight: 400; letter-spacing: .08em; }
.project-card > i { position: absolute; top: 22px; right: 24px; color: var(--white); font-size: 12px; font-style: normal; opacity: 0; transform: translateY(8px); transition: .3s; }
.project-card:hover img { transform: scale(1.035); }
.project-card:hover > i { opacity: 1; transform: translateY(0); }
.feature { display: grid; grid-template-columns: 1.25fr .75fr; min-height: 720px; background: var(--green); color: var(--white); }
.feature-image { min-height: 650px; background: url("assets/images/page-26.jpg") center/cover no-repeat; }
.feature-content { padding: clamp(70px, 9vw, 130px) clamp(40px, 7vw, 100px); }
.feature-content > p:not(.eyebrow) { margin: 32px 0 50px; color: rgba(255,255,255,.7); line-height: 2; }
.feature-content ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.18); }
.feature-content li { display: flex; gap: 24px; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,.18); font-size: 14px; }
.feature-content li span { opacity: .55; font-family: Georgia, serif; }
.process-list { margin-top: 65px; display: grid; grid-template-columns: repeat(5, 1fr); }
.process-item { min-height: 230px; padding: 28px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); }
.process-item:first-child { padding-left: 0; }
.process-item:last-child { border-right: 0; }
.process-item > span { color: var(--green-soft); font: 14px Georgia, serif; }
.process-item h3 { margin: 60px 0 14px; font-size: 18px; font-weight: 500; }
.process-item p { color: #68736c; font-size: 13px; line-height: 1.8; }
.about { min-height: 760px; display: grid; grid-template-columns: .9fr 1.1fr; background: #18261f; color: var(--white); }
.about-copy { padding: clamp(80px, 10vw, 150px) var(--pad); }
.about-lead { margin: 32px 0 24px; font-size: 20px; }
.about-copy > p:not(.eyebrow):not(.about-lead) { max-width: 580px; color: rgba(255,255,255,.64); line-height: 2; }
.about-image { min-height: 600px; background: url("assets/images/page-23.jpg") center/cover no-repeat; }
.values { display: flex; gap: 26px; margin-top: 45px; }
.values span { width: 68px; height: 68px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.32); border-radius: 50%; font-size: 13px; }
.contact { padding: clamp(90px, 11vw, 150px) var(--pad); display: flex; justify-content: space-between; align-items: center; gap: 50px; }
.contact > div:first-child { max-width: 680px; }
.contact > div:first-child > p:last-child { margin-top: 28px; color: #627068; line-height: 1.9; }
.contact-card { display: flex; align-items: center; gap: 22px; padding: 18px 24px 18px 18px; background: var(--white); box-shadow: 0 18px 50px rgba(31,45,37,.08); }
.qr-crop { position: relative; width: 150px; height: 150px; flex: 0 0 150px; overflow: hidden; background: #fff; }
.qr-crop img { position: absolute; width: 1754px; max-width: none; left: -910px; top: -732px; }
.contact-card strong, .contact-card span, .contact-card small { display: block; }
.contact-card strong { margin-bottom: 10px; }
.contact-card span { font-size: 13px; color: #657068; }
.contact-card small { margin-top: 22px; color: #8a918d; }
footer { padding: 42px var(--pad); display: flex; align-items: center; justify-content: space-between; color: rgba(255,255,255,.7); background: #111a15; font-size: 12px; }
.footer-brand { color: var(--white); }
.lightbox { position: fixed; z-index: 50; inset: 0; padding: clamp(24px, 5vw, 70px); background: rgba(11,17,13,.94); color: var(--white); }
.lightbox:not([hidden]) { display: flex; flex-direction: column; align-items: center; justify-content: center; }
.lightbox img { max-width: 90vw; max-height: 76vh; object-fit: contain; }
.lightbox > div { width: min(90vw, 1200px); padding-top: 18px; display: flex; justify-content: space-between; }
.lightbox > div strong { font-weight: 500; }
.lightbox > div span { font-size: 12px; opacity: .6; }
.lightbox-close { position: absolute; top: 25px; right: 32px; color: var(--white); background: none; border: 0; font-size: 34px; cursor: pointer; }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s, transform .7s; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes heroZoom { to { transform: scale(1.08); } }
@media (max-width: 980px) {
  .menu-button { display: block; color: var(--white); cursor: pointer; }
  nav { position: absolute; top: 88px; left: 0; right: 0; padding: 28px var(--pad); display: none; align-items: stretch; flex-direction: column; gap: 22px; color: var(--ink); background: var(--paper); }
  nav.open { display: flex; }
  .nav-cta { border-color: var(--line); text-align: center; }
  .hero-facts { left: var(--pad); right: auto; }
  .scroll-cue { display: none; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card:nth-child(2) { border-right: 0; }
  .project-grid { grid-auto-rows: 230px; }
  .project-card { grid-column: span 6; }
  .project-card.large, .project-card.wide { grid-column: span 12; }
  .feature { grid-template-columns: 1fr; }
  .feature-image { min-height: 520px; }
  .process-list { grid-template-columns: repeat(3, 1fr); }
  .about { grid-template-columns: 1fr; }
  .about-image { min-height: 480px; }
  .contact { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 640px) {
  .site-header { height: 72px; }
  .brand-mark { width: 36px; height: 36px; }
  nav { top: 72px; }
  .hero { min-height: 760px; }
  .hero-content { top: 42%; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-facts { right: var(--pad); bottom: 30px; justify-content: space-between; }
  .hero-facts div { min-width: auto; padding-right: 12px; }
  .hero-facts strong { font-size: 20px; }
  .intro { display: block; }
  .intro-copy { margin-top: 30px; }
  .service-grid { margin-top: 45px; grid-template-columns: 1fr; }
  .service-card, .service-card:not(:first-child) { min-height: 220px; padding: 25px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .service-card h3 { margin-top: 36px; }
  .project-heading { align-items: flex-start; flex-direction: column; gap: 32px; }
  .filters { justify-content: flex-start; }
  .project-grid { display: block; }
  .project-card { width: 100%; height: 270px; display: block; margin-bottom: 14px; }
  .project-card.large { height: 420px; }
  .feature-image { min-height: 360px; }
  .process-list { grid-template-columns: 1fr; }
  .process-item, .process-item:first-child { min-height: 170px; padding: 24px 0; border-right: 0; }
  .process-item h3 { margin-top: 32px; }
  .about-image { min-height: 340px; }
  .contact-card { width: 100%; align-items: flex-start; flex-direction: column; }
  footer { align-items: flex-start; flex-direction: column; gap: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}