:root {
  --ink: #11171c;
  --charcoal: #1d252e;
  --paper: #f7f7f5;
  --white: #ffffff;
  --muted: #74777a;
  --line: #d9dadd;
  --accent: #e83b12;
  --content: min(1320px, calc(100vw - 80px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: 0; }
body, button, a { font-size: 16px; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
p { margin: 0; }
h1, h2, h3 { margin: 0; line-height: 1.16; }
h1 { font-size: 76px; }
h2 { font-size: 46px; }
h3 { font-size: 22px; }

.site-header { position: sticky; top: 0; z-index: 20; height: 82px; padding: 0 max(40px, calc((100vw - 1440px) / 2)); display: flex; align-items: center; gap: clamp(22px, 3vw, 44px); background: #0e1317; color: white; border-bottom: 1px solid rgba(255,255,255,.1); }
.brand-lockup { display: flex; align-items: center; gap: 12px; min-width: 240px; }
.brand-lockup img { width: 42px; height: 42px; object-fit: contain; background: white; }
.brand-lockup span, .footer-brand div { display: flex; flex-direction: column; gap: 3px; }
.brand-lockup strong { font-size: 16px; }
.brand-lockup small, .footer-brand small { color: #8b9398; font-size: 9px; }
.site-nav { display: flex; align-items: center; justify-content: center; gap: clamp(18px, 2.2vw, 34px); margin-left: auto; }
.site-nav a { color: #a8adb0; font-size: 14px; padding: 31px 0 28px; border-bottom: 3px solid transparent; }
.site-nav a:hover, .site-nav a.active { color: white; border-bottom-color: var(--accent); }
.header-cta { background: var(--accent); padding: 14px 20px; font-size: 14px; font-weight: 700; }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; color: white; font-size: 24px; }

@media (max-width: 1180px) and (min-width: 981px) {
  .brand-lockup { min-width: 200px; }
  .site-nav a { font-size: 13px; }
  .header-cta { padding-inline: 16px; }
}

.home-hero { position: relative; min-height: 690px; color: white; background-image: url('assets/company-01.jpg'); background-position: center; background-size: cover; display: flex; align-items: center; }
.home-hero::before, .about-hero::before, .business-hero::before { content: ''; position: absolute; inset: 0; background: rgba(7, 10, 12, .62); }
.hero-copy { position: relative; z-index: 1; width: var(--content); margin: 0 auto; padding: 100px 0; }
.hero-copy h1 { max-width: 800px; margin: 26px 0; }
.hero-copy > p:not(.eyebrow) { max-width: 660px; color: #d4d7d9; font-size: 19px; line-height: 1.8; }
.hero-index { position: absolute; z-index: 1; right: max(40px, calc((100vw - 1320px) / 2)); bottom: 40px; display: flex; gap: 24px; color: #ced1d2; font: 11px ui-monospace, monospace; }
.eyebrow { color: var(--accent); font: 700 11px ui-monospace, "SFMono-Regular", monospace; text-transform: uppercase; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 42px; }
.button { min-height: 48px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid currentColor; font-weight: 700; font-size: 14px; }
.button.primary { background: var(--accent); color: white; border-color: var(--accent); }
.button.ghost { color: white; border-color: rgba(255,255,255,.55); }
.button.light { background: white; color: var(--ink); border-color: white; }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); background: white; padding: 34px max(40px, calc((100vw - 1320px) / 2)); }
.metrics > div { min-height: 72px; display: flex; flex-direction: column; justify-content: center; gap: 8px; padding-left: 28px; border-left: 1px solid var(--line); }
.metrics > div:first-child { padding-left: 0; border-left: 0; }
.metrics strong { font-size: 30px; }
.metrics span { color: var(--muted); font-size: 13px; }

.section { width: 100%; padding: 90px max(40px, calc((100vw - 1320px) / 2)); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 36px; }
.section-heading h2 { margin-top: 14px; }
.section-heading > a, .section-heading > p, .section-heading > span { color: var(--muted); font-size: 14px; line-height: 1.7; }
.brand-matrix { background: var(--paper); }
.brand-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.brand-card { min-height: 270px; padding: 28px; display: flex; flex-direction: column; color: white; background: #111; border: 1px solid rgba(255,255,255,.1); transition: transform .25s ease; }
.brand-card[href]:hover { transform: translateY(-4px); }
.brand-card.theme-buer { background: var(--charcoal); }
.brand-card.theme-maituo { color: #343735; background: #f6f4ef; border-color: #d9d8d2; }
.brand-card.theme-zhiying { background: #12181d; border-color: #284046; }
.brand-line { width: 36px; height: 3px; margin-bottom: 24px; background: #b69b6d; }
.brand-logo { width: 48px; height: 48px; margin-bottom: 18px; object-fit: cover; border: 1px solid #b69b6d; }
.brand-card.theme-miao .brand-logo { border: 0; outline: 0; box-shadow: none; }
.theme-buer .brand-line { background: var(--accent); }
.theme-maituo .brand-line { background: #607a68; }
.theme-zhiying .brand-line { background: #16a6a1; }
.brand-card > p { min-height: 28px; color: #85898c; font: 10px ui-monospace, monospace; }
.brand-card h3 { font-size: 28px; }
.brand-card strong { margin-top: 8px; font-size: 14px; }
.brand-summary { margin: 18px 0; color: #a6aaad; font-size: 13px; line-height: 1.7; }
.theme-maituo .brand-summary { color: #6a6d6a; }
.brand-action { margin-top: auto; color: var(--accent); font-size: 13px; font-weight: 700; }
.theme-miao .brand-action { color: #b69b6d; }
.theme-maituo .brand-action { color: #607a68; }
.theme-zhiying .brand-action { color: #16a6a1; }
.brand-card.coming-soon { cursor: pointer; }
.brand-card.coming-soon .brand-action { width: fit-content; padding: 6px 8px; border: 1px solid #16a6a1; }

.projects-section { color: white; background: #10161a; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.project-card { display: block; min-width: 0; }
.project-card figure { margin: 0 0 20px; aspect-ratio: 4 / 3; overflow: hidden; background: #252b2f; }
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.project-card:hover img { transform: scale(1.025); }
.project-card .eyebrow { margin-bottom: 9px; }
.project-card h3 { margin-bottom: 10px; }
.project-card > span { color: #7f878c; font-size: 13px; }
.projects-all { color: var(--ink); grid-template-columns: repeat(2, 1fr); gap: 60px 24px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 38px; }
.filter-row span { padding: 9px 14px; border: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.filter-row .active { color: white; border-color: var(--charcoal); background: var(--charcoal); }

.capabilities { display: grid; grid-template-columns: minmax(300px, .9fr) 2fr; gap: 60px; background: white; }
.capabilities h2 { margin: 16px 0 20px; }
.capabilities > div:first-child > p:last-child { color: var(--muted); line-height: 1.8; }
.capability-list { display: grid; grid-template-columns: repeat(4, 1fr); }
.capability-list article { min-height: 210px; padding: 18px 22px; border-left: 1px solid var(--line); }
.capability-list span, .service-grid span { color: var(--accent); font: 700 12px ui-monospace, monospace; }
.capability-list h3 { margin: 34px 0 14px; font-size: 19px; }
.capability-list p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.cta-band { min-height: 190px; padding: 48px max(40px, calc((100vw - 1320px) / 2)); background: var(--accent); color: white; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta-band h2 { margin-top: 12px; font-size: 40px; }
.business-contact-line { margin-top: 12px; color: rgba(255,255,255,.72); font-size: 13px; }
.business-contact-line a { color: inherit; }
.cta-band .eyebrow { color: white; opacity: .7; }
.cta-band .button-row { margin: 0; }

.site-footer { padding: 54px max(40px, calc((100vw - 1320px) / 2)); background: #0e1317; color: white; display: grid; grid-template-columns: 1fr auto auto auto; gap: clamp(44px, 5vw, 90px); align-items: start; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { width: 48px; height: 48px; background: white; }
.footer-links, .site-footer address { display: grid; gap: 10px; font-style: normal; color: #9ca2a6; font-size: 13px; }
.icp-link { margin-top: 8px; color: #737b80; }
.icp-link:hover { color: white; }
.footer-qr { width: 128px; display: grid; gap: 7px; color: #d9dddf; font-size: 12px; }
.footer-qr img { width: 128px; height: 128px; padding: 5px; object-fit: contain; background: white; }
.footer-qr small { color: #737b80; font-size: 10px; line-height: 1.5; }
.project-cover-fallback { width: 100%; height: 100%; display: grid; place-items: center; color: #8f979b; background: #1d252e; font: 700 12px ui-monospace, monospace; }

.page-hero { padding: 110px max(40px, calc((100vw - 1320px) / 2)); background: var(--charcoal); color: white; }
.page-hero h1 { margin: 18px 0; }
.page-hero > p:last-child { color: #aeb4b8; max-width: 680px; line-height: 1.8; }
.business-coming-soon { min-height: calc(100vh - 76px); padding: 80px max(40px, calc((100vw - 1320px) / 2)); display: flex; align-items: center; color: white; background: #12181d; }
.business-coming-soon.theme-maituo { color: #343735; background: #f6f4ef; }
.business-coming-soon-inner { width: min(720px, 100%); }
.business-coming-soon .business-logo { width: 72px; height: 72px; }
.business-coming-soon .coming-soon-code { display: block; margin-top: 52px; color: #16a6a1; font: 700 12px ui-monospace, monospace; }
.business-coming-soon h1 { margin: 12px 0 8px; font-size: 72px; }
.business-coming-soon strong { display: block; font-size: 20px; }
.business-coming-soon-inner > p:last-of-type { margin: 34px 0; color: #929ba0; font-size: 16px; }
.business-coming-soon a { display: inline-flex; align-items: center; gap: 8px; color: #16a6a1; font-size: 13px; font-weight: 700; }
.business-coming-soon a svg { width: 17px; }
.business-unavailable .header-cta, .business-unavailable .site-footer { display: none; }

.business-hero { --hero: none; min-height: 610px; position: relative; background-image: var(--hero); background-size: cover; background-position: center; color: white; display: flex; align-items: center; }
.business-hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.business-hero-inner { position: relative; z-index: 1; width: var(--content); margin: auto; padding: 80px 0; }
.business-hero h1 { margin: 20px 0 6px; }
.business-logo { width: 76px; height: 76px; margin-bottom: 20px; object-fit: cover; border: 1px solid #b69b6d; }
.business-hero h2 { font-size: 52px; }
.business-hero-inner > p:not(.eyebrow) { max-width: 650px; margin: 25px 0 34px; color: #d3d7d8; line-height: 1.8; }
.business-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: end; }
.business-intro h2 { margin-top: 15px; }
.business-intro > p { color: var(--muted); line-height: 1.9; }
.service-section { background: var(--charcoal); color: white; }
.service-section .section-heading > p { max-width: 500px; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #35404a; border-left: 1px solid #35404a; }
.service-grid article { min-height: 230px; padding: 28px; border-right: 1px solid #35404a; border-bottom: 1px solid #35404a; }
.service-grid h3 { margin: 36px 0 16px; font-size: 20px; }
.service-grid p { color: #89939a; line-height: 1.7; font-size: 13px; }
.process-section { background: white; }
.process-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); }
.process-list li { min-height: 120px; padding: 20px; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 28px; }
.process-list li:last-child { border-right: 0; }
.process-list span { color: var(--accent); font: 12px ui-monospace, monospace; }
.system-map { display: grid; grid-template-columns: .8fr 2fr; gap: 60px; color: white; background: #12181d; }
.system-map h2 { margin: 16px 0 20px; }
.system-map > div:first-child > p:last-child { color: #849198; line-height: 1.8; }
.system-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 12px; align-items: center; }
.system-flow span { min-height: 90px; border: 1px solid #324149; display: flex; align-items: center; justify-content: center; text-align: center; }
.system-flow i { color: #16a6a1; font-style: normal; }
.related-work { background: var(--paper); }
.business-zhiying .eyebrow, .business-zhiying .service-grid span, .business-zhiying .process-list span { color: #16a6a1; }
.business-maituo .eyebrow, .business-maituo .service-grid span, .business-maituo .process-list span { color: #607a68; }
.business-miao .eyebrow, .business-miao .service-grid span, .business-miao .process-list span { color: #b69b6d; }

.about-hero { position: relative; min-height: 560px; padding: 90px max(40px, calc((100vw - 1320px) / 2)); color: white; background: url('assets/company-01.jpg') center / cover; display: flex; align-items: center; }
.about-hero > div, .about-hero > span { position: relative; z-index: 1; }
.about-hero > div { max-width: 740px; }
.about-hero h1 { margin: 22px 0 14px; }
.about-hero h2 { font-size: 28px; line-height: 1.5; }
.about-hero > div > p:last-child { margin-top: 28px; max-width: 620px; color: #d3d7d8; line-height: 1.8; }
.about-hero > span { position: absolute; right: max(40px, calc((100vw - 1320px) / 2)); bottom: 36px; font: 11px ui-monospace, monospace; }
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; background: white; }
.about-intro h2 { margin-top: 16px; }
.about-intro > div:last-child { display: grid; gap: 18px; color: var(--muted); line-height: 1.9; }
.home-about { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; background: white; }
.home-about h2 { margin-top: 15px; }
.home-about > div:last-child { align-self: end; }
.home-about > div:last-child p { max-width: 720px; color: var(--muted); line-height: 1.9; }
.home-about a { display: inline-block; margin-top: 24px; color: var(--accent); font-weight: 700; }
.about-business { background: #10161a; color: white; }
.about-brand-grid .coming-soon { pointer-events: auto; }
.zhiying-detail-link { margin-top: 24px; color: #858f94; font-size: 13px; }
.zhiying-detail-link a { color: #16a6a1; }
.delivery { background: white; }
.delivery h2 { margin: 15px 0 38px; }
.people-section { background: var(--paper); }
.profile-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.profile-row { min-height: 130px; display: flex; align-items: center; gap: 22px; padding: 18px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.profile-row img { width: 92px; height: 92px; object-fit: cover; }
.profile-row p, .simple-row p { margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.profile-row strong { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
.credibility-section { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; background: white; }
.credibility-section h2 { margin: 15px 0 32px; }
.simple-list { border-top: 1px solid var(--line); }
.simple-row { min-height: 100px; padding: 18px 0; display: grid; grid-template-columns: 90px 1fr; border-bottom: 1px solid var(--line); }
.simple-row > span { color: var(--accent); font: 12px ui-monospace, monospace; }
.honor-row img { width: 72px; height: 72px; object-fit: cover; }
.honor-row small { display: block; margin-bottom: 6px; color: var(--accent); font: 11px ui-monospace, monospace; }
.partner-list { display: flex; flex-wrap: wrap; gap: 8px; }
.partner-list > article { width: calc(50% - 4px); min-height: 82px; padding: 12px; border: 1px solid var(--line); display: flex; align-items: center; gap: 12px; }
.partner-list img { width: 58px; height: 58px; object-fit: contain; }
.partner-list p { margin-top: 5px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.module-empty { padding: 28px 0; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.office-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.office-grid img { width: 100%; height: 310px; object-fit: cover; }
.office-grid h3 { margin: 18px 0 8px; }
.office-grid p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.office-grid a { display: inline-flex; align-items: center; gap: 7px; margin-top: 12px; color: var(--accent); font-size: 12px; font-weight: 700; }
.office-grid a svg { width: 16px; }

.project-title { padding: 90px max(40px, calc((100vw - 1100px) / 2)) 55px; background: white; }
.project-title h1 { margin: 16px 0; }
.project-title > p:last-child { color: var(--muted); }
.project-cover { margin: 0; width: 100%; max-height: 78vh; overflow: hidden; background: #202529; }
.project-cover img { width: 100%; height: min(78vh, 900px); object-fit: cover; }
.project-story { padding: 90px max(40px, calc((100vw - 860px) / 2)); background: white; }
.project-story h2 { margin: 16px 0 24px; }
.project-story > p:last-child { color: var(--muted); line-height: 1.9; }
.project-gallery { padding: 0 max(40px, calc((100vw - 1200px) / 2)) 100px; display: grid; gap: 20px; background: white; }
.project-gallery figure { margin: 0; }
.project-gallery img { width: 100%; }
.content-protected .project-detail { user-select: none; -webkit-user-select: none; }
.public-watermark { position: fixed; inset: 0; z-index: 90; display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 150px; align-items: center; overflow: hidden; pointer-events: none; opacity: .16; transform: rotate(-18deg) scale(1.2); transform-origin: center; }
.public-watermark span { color: #273033; font: 600 11px ui-monospace, SFMono-Regular, Consolas, monospace; text-align: center; white-space: nowrap; }
@media print { .project-detail { display: none !important; } body::after { content: '受保护内容禁止打印'; min-height: 100vh; display: grid; place-items: center; font-size: 24px; } }

@media (max-width: 980px) {
  :root { --content: calc(100vw - 40px); }
  .site-header { height: 68px; padding: 0 20px; }
  .brand-lockup { min-width: 0; }
  .business-coming-soon { min-height: calc(100vh - 68px); padding: 70px 20px; }
  .business-coming-soon h1 { font-size: 52px; }
  .brand-lockup img { width: 38px; height: 38px; }
  .brand-lockup small { display: none; }
  .menu-toggle { display: block; margin-left: auto; }
  .header-cta { display: none; }
  .site-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 12px 20px 24px; background: #0e1317; flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 15px 0; border-bottom: 1px solid #2d3439; }
  .home-hero { min-height: calc(100svh - 68px); background-position: 42% center; }
  .hero-copy { padding: 80px 0 120px; }
  h1 { font-size: 48px; }
  h2 { font-size: 34px; }
  .hero-copy h1 { font-size: 56px; }
  .cta-band h2 { font-size: 32px; }
  .business-hero h2 { font-size: 38px; }
  .hero-copy > p:not(.eyebrow) { font-size: 16px; }
  .hero-index { left: 20px; right: auto; }
  .metrics { grid-template-columns: repeat(2, 1fr); padding: 16px 20px; }
  .metrics > div { min-height: 82px; padding-left: 16px; }
  .metrics > div:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .metrics > div:nth-child(4) { border-top: 1px solid var(--line); }
  .section { padding: 70px 20px; }
  .section-heading { align-items: start; }
  .brand-grid { grid-template-columns: 1fr 1fr; }
  .brand-card { min-height: 230px; padding: 20px; }
  .brand-card h3 { font-size: 24px; }
  .brand-summary { display: none; }
  .projects-grid, .projects-all { grid-template-columns: 1fr; gap: 46px; }
  .capabilities, .business-intro, .about-intro, .system-map { grid-template-columns: 1fr; gap: 38px; }
  .capability-list { grid-template-columns: 1fr; }
  .capability-list article { min-height: 110px; border-left: 0; border-top: 1px solid var(--line); padding: 18px 0; display: grid; grid-template-columns: 42px 1fr; gap: 0 12px; }
  .capability-list h3 { margin: 0 0 6px; }
  .capability-list p { grid-column: 2; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li { min-height: 72px; flex-direction: row; align-items: center; gap: 26px; border-right: 0; border-bottom: 1px solid var(--line); }
  .system-flow { grid-template-columns: 1fr; }
  .system-flow i { text-align: center; transform: rotate(90deg); }
  .site-footer { padding: 44px 20px; grid-template-columns: 1fr; gap: 30px; }
  .footer-links { grid-auto-flow: column; justify-content: start; gap: 24px; }
  .page-hero, .project-title { padding: 80px 20px 50px; }
  .business-hero { min-height: 590px; }
  .profile-list, .credibility-section, .office-grid, .home-about { grid-template-columns: 1fr; gap: 42px; }
  .office-grid img { height: 260px; }
  .project-story { padding: 70px 20px; }
  .project-gallery { padding: 0 20px 70px; }
}

@media (max-width: 560px) {
  h2 { font-size: 30px; }
  .section-heading > a { font-size: 12px; white-space: nowrap; }
  .brand-card { min-height: 210px; }
  .brand-card > p { min-height: 24px; font-size: 8px; overflow-wrap: anywhere; }
  .brand-card strong { font-size: 12px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-grid article { min-height: 180px; }
  .cta-band { padding: 42px 20px; align-items: flex-start; flex-direction: column; }
  .about-hero { min-height: 620px; padding: 70px 20px 110px; }
  .about-hero h1 { font-size: 44px; }
  .about-hero h2 { font-size: 23px; }
  .about-hero > span { left: 20px; right: auto; }
  .project-cover img { height: 58vh; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}

/* Pencil business-detail implementation */
.site-icon { width: 18px; height: 18px; flex: 0 0 auto; }
.button .site-icon, .section-heading a .site-icon { margin-left: 9px; }
.section-heading a { display: inline-flex; align-items: center; }
.tone-hero { min-height: 590px; }
.tone-hero::before { z-index: 1; }
.tone-hero .business-hero-inner { max-width: 1320px; }
.tone-hero .business-logo { width: 58px; height: 58px; margin-bottom: 24px; }
.business-mark { display: block; width: 38px; height: 4px; margin-bottom: 26px; background: currentColor; }
.tone-hero h1 { max-width: 820px; margin: 20px 0 24px; font-size: 62px; line-height: 1.15; }
.tone-hero .hero-summary { max-width: 640px; margin: 0 0 36px; color: #d5dade; font-size: 19px; line-height: 1.75; }
.tone-intro { display: grid; grid-template-columns: minmax(340px, .9fr) 1.3fr; gap: 80px; align-items: center; }
.tone-intro h2 { margin-top: 16px; }
.tone-intro > p, .tone-intro > div > p:last-child { color: var(--muted); line-height: 1.9; }
.tone-services .service-grid { border: 0; }
.tone-services .service-grid article { border-color: currentColor; }
.tone-projects .business-empty { padding: 34px 0; color: var(--muted); border-top: 1px solid currentColor; }
.tone-process { display: grid; grid-template-columns: 310px 1fr; gap: 60px; align-items: center; }
.tone-process .section-heading { grid-column: 1 / -1; }
.tone-process .process-list { width: 100%; }
.tone-cta .site-icon { width: 17px; }

/* Miao Laiyi: black, warm white and restrained gold. */
.business-miao { --business-accent: #b69b6d; --business-paper: #f4f2ed; background: var(--business-paper); }
.business-miao .site-header { background: #111; }
.business-miao .site-nav a:hover, .business-miao .site-nav a.active { border-bottom-color: var(--business-accent); }
.business-miao .header-cta, .business-miao .button.primary { color: #111; background: var(--business-accent); border-color: var(--business-accent); }
.business-miao .tone-hero { min-height: 690px; }
.business-miao .tone-hero::before { background: rgba(12, 11, 10, .66); }
.business-miao .tone-hero .eyebrow, .business-miao .tone-hero .business-mark { color: #d7ccb9; }
.business-miao .tone-hero h1 { font-size: 68px; font-weight: 500; }
.business-miao .business-logo { border: 0; outline: 0; box-shadow: none; }
.miao-philosophy { min-height: 330px; background: var(--business-paper); }
.miao-services { background: #181715; color: #f4f2ed; }
.miao-services .section-heading > p { color: #938f88; }
.miao-services .service-grid { grid-template-columns: repeat(4, 1fr); border-top: 1px solid #393631; }
.miao-services .service-grid article { min-height: 240px; padding: 26px 24px; border: 0; border-right: 1px solid #393631; }
.miao-services .service-grid article:last-child { border-right: 0; }
.miao-services .service-grid span, .business-miao .eyebrow, .business-miao .process-list span { color: var(--business-accent); }
.miao-services .service-grid h3 { margin-top: 44px; font-weight: 500; }
.miao-projects { background: var(--business-paper); color: #171614; }
.miao-projects .projects-grid { grid-template-columns: repeat(3, 1fr); }
.miao-process { background: #111; color: #f4f2ed; }
.miao-process .process-list { border-color: #393631; }
.miao-process .process-list li { border-color: #393631; }
.business-miao .tone-cta { background: var(--business-accent); color: #111; }
.business-miao .tone-cta .eyebrow { color: #111; }

/* Buer: precise commercial grid with red-orange signal color. */
.business-buer { --business-accent: #e62b1e; background: #f7f7f5; }
.business-buer .site-header { background: #1d252e; }
.business-buer .site-nav a:hover, .business-buer .site-nav a.active { border-bottom-color: var(--business-accent); }
.business-buer .header-cta, .business-buer .button.primary, .business-buer .tone-cta { background: var(--business-accent); border-color: var(--business-accent); }
.business-buer .tone-hero::before { background: rgba(16, 22, 26, .54); }
.business-buer .tone-hero .business-mark { color: var(--business-accent); }
.brand-proof { min-height: 210px; padding: 42px max(40px, calc((100vw - 1320px) / 2)); display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; }
.brand-proof article { padding: 18px 28px; display: flex; flex-direction: column; justify-content: center; gap: 12px; border-left: 1px solid #d9dadd; }
.brand-proof article:first-child { border-left: 0; }
.brand-proof strong { font-size: 24px; }
.brand-proof span { color: #6f7478; font-size: 13px; }
.buer-sectors { background: #f7f7f5; align-items: start; }
.buer-sectors .service-grid { grid-template-columns: 1fr 1fr; background: white; border: 1px solid #e2e3e4; }
.buer-sectors .service-grid article { min-height: 150px; padding: 24px; border: 0; border-right: 1px solid #e2e3e4; border-bottom: 1px solid #e2e3e4; }
.buer-sectors .service-grid article:nth-child(2n) { border-right: 0; }
.buer-sectors .service-grid article:nth-last-child(-n+2) { border-bottom: 0; }
.buer-sectors .service-grid span, .business-buer .eyebrow, .business-buer .process-list span { color: var(--business-accent); }
.buer-sectors .service-grid h3 { margin: 18px 0 10px; }
.buer-projects { background: #1d252e; color: white; }
.buer-projects .section-heading > a { color: #aab1b5; }
.buer-process { grid-template-columns: 1fr; background: white; }
.buer-process .process-list { grid-template-columns: repeat(4, 1fr); }
.business-buer .tone-cta .eyebrow { color: white; }

/* Maituo: soft residential rhythm and muted green. */
.business-maituo { --business-accent: #607a68; background: #f6f4ef; color: #343735; }
.business-maituo .site-header { color: #343735; background: #f6f4ef; border-bottom-color: #d9d8d2; }
.business-maituo .brand-lockup small, .business-maituo .site-nav a { color: #737773; }
.business-maituo .site-nav a:hover, .business-maituo .site-nav a.active { color: #343735; border-bottom-color: var(--business-accent); }
.business-maituo .header-cta, .business-maituo .button.primary, .business-maituo .tone-cta { background: var(--business-accent); border-color: var(--business-accent); color: white; }
.business-maituo .tone-hero::before { background: rgba(28, 33, 29, .28); }
.business-maituo .tone-hero .business-mark { color: var(--business-accent); }
.maituo-lifestyle { min-height: 300px; background: #f6f4ef; }
.maituo-services { background: #e8ece7; }
.maituo-services .service-grid { grid-template-columns: repeat(4, 1fr); border-top: 1px solid #c9d0ca; }
.maituo-services .service-grid article { min-height: 230px; padding: 26px 22px; border: 0; border-right: 1px solid #c9d0ca; }
.maituo-services .service-grid article:last-child { border-right: 0; }
.maituo-services .service-grid span, .business-maituo .eyebrow, .business-maituo .process-list span { color: var(--business-accent); }
.maituo-services .service-grid h3 { margin-top: 38px; }
.maituo-services .service-grid p { color: #6b716c; }
.maituo-homes { background: #f6f4ef; }
.maituo-process { grid-template-columns: 1fr; background: white; }
.maituo-process .process-list { grid-template-columns: repeat(4, 1fr); }

/* Zhiying: technical dark surfaces, cyan system signals and architecture diagrams. */
.business-zhiying { --business-accent: #16a6a1; background: #12181d; }
.business-zhiying .site-header { background: #12181d; border-bottom-color: #2d3940; }
.business-zhiying .site-nav a:hover, .business-zhiying .site-nav a.active { border-bottom-color: var(--business-accent); }
.business-zhiying .header-cta, .business-zhiying .button.primary, .business-zhiying .tone-cta { background: var(--business-accent); border-color: var(--business-accent); }
.business-zhiying .tone-hero::before { background: rgba(7, 16, 20, .67); }
.business-zhiying .tone-hero .business-mark { color: var(--business-accent); }
.business-zhiying .eyebrow, .business-zhiying .process-list span { color: var(--business-accent); }
.zhiying-architecture { min-height: 300px; background: #f2f5f6; color: #172127; }
.zhiying-architecture > div:first-child > p:last-child { margin-top: 20px; color: #69757a; line-height: 1.8; }
.architecture-flow { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid #d9e1e3; }
.architecture-flow span { min-height: 100px; padding: 18px; display: flex; flex-direction: column; justify-content: center; gap: 13px; text-align: center; border-left: 1px solid #d9e1e3; }
.architecture-flow span:first-child { border-left: 0; }
.architecture-flow b { color: var(--business-accent); font: 700 10px ui-monospace, monospace; }
.zhiying-solutions { background: #182126; color: white; }
.zhiying-solutions .service-grid { grid-template-columns: repeat(4, 1fr); border-top: 1px solid #324149; }
.zhiying-solutions .service-grid article { min-height: 245px; padding: 26px 22px; border: 0; border-right: 1px solid #324149; }
.zhiying-solutions .service-grid article:last-child { border-right: 0; }
.zhiying-solutions .service-grid span { color: var(--business-accent); }
.zhiying-solutions .service-grid h3 { margin-top: 38px; }
.zhiying-boundary { display: grid; grid-template-columns: .8fr 1.4fr; gap: 80px; background: #f2f5f6; color: #172127; }
.zhiying-boundary h2 { margin: 16px 0 20px; }
.zhiying-boundary > div:first-child > p:last-child { color: #68757b; line-height: 1.85; }
.system-scope { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid #d6dfe1; }
.system-scope span { min-height: 110px; padding: 20px; display: flex; align-items: center; justify-content: center; border-right: 1px solid #d6dfe1; border-bottom: 1px solid #d6dfe1; }
.system-scope span:nth-child(2n) { border-right: 0; }
.system-scope span:nth-last-child(-n+2) { border-bottom: 0; }
.zhiying-process { grid-template-columns: 1fr; background: #12181d; color: white; }
.zhiying-process .process-list { border-color: #324149; }
.zhiying-process .process-list li { border-color: #324149; }

/* Article blocks shared by website and Mini Program content data. */
.project-article { padding-bottom: 100px; background: white; }
.project-article > * { max-width: 920px; margin-left: auto; margin-right: auto; }
.project-article .project-story { max-width: none; }
.project-article .project-gallery { max-width: none; }
.article-heading { padding: 76px 30px 22px; display: grid; grid-template-columns: 50px 1fr; align-items: center; }
.article-heading span { color: var(--accent); font: 700 11px ui-monospace, monospace; }
.article-heading h2 { font-size: 34px; }
.article-text { padding: 0 30px 30px; color: #62676a; font-size: 17px; line-height: 2; white-space: pre-wrap; }
.project-article blockquote { margin-top: 18px; margin-bottom: 36px; padding: 24px 30px; color: #3f4548; font-size: 20px; line-height: 1.8; border-left: 3px solid var(--accent); background: #f4f4f1; }
.article-image { max-width: 1180px; margin-top: 20px; margin-bottom: 20px; }
.article-image img { width: 100%; }
.article-image figcaption { padding: 12px 4px; color: #818588; font-size: 12px; }
.article-image-group { max-width: 1180px; margin-top: 20px; margin-bottom: 20px; display: grid; gap: 8px; }
.article-image-group.layout-2col { grid-template-columns: 1fr 1fr; }
.article-image-group.layout-3col { grid-template-columns: repeat(3, 1fr); }
.article-image-group figure { margin: 0; aspect-ratio: 4 / 3; overflow: hidden; }
.article-image-group img { width: 100%; height: 100%; object-fit: cover; }
.article-divider { margin-top: 56px; margin-bottom: 56px; border: 0; border-top: 1px solid #d9dadd; }

@media (max-width: 980px) {
  .tone-hero, .business-miao .tone-hero { min-height: 450px; }
  .tone-hero .business-hero-inner { padding: 58px 0; }
  .tone-hero h1, .business-miao .tone-hero h1 { font-size: 43px; }
  .tone-hero .hero-summary { max-width: 560px; font-size: 16px; }
  .tone-intro, .tone-process, .zhiying-boundary { grid-template-columns: 1fr; gap: 34px; }
  .brand-proof { grid-template-columns: 1fr 1fr; padding: 20px; }
  .brand-proof article:nth-child(3) { border-left: 0; }
  .miao-services .service-grid, .maituo-services .service-grid, .zhiying-solutions .service-grid { grid-template-columns: 1fr 1fr; }
  .miao-services .service-grid article:nth-child(2), .maituo-services .service-grid article:nth-child(2), .zhiying-solutions .service-grid article:nth-child(2) { border-right: 0; }
  .miao-services .service-grid article, .maituo-services .service-grid article, .zhiying-solutions .service-grid article { border-bottom: 1px solid currentColor; }
  .miao-services .service-grid article:nth-last-child(-n+2), .maituo-services .service-grid article:nth-last-child(-n+2), .zhiying-solutions .service-grid article:nth-last-child(-n+2) { border-bottom: 0; }
  .buer-process .process-list, .maituo-process .process-list { grid-template-columns: 1fr; }
  .business-maituo .menu-toggle { color: #343735; }
  .business-maituo .site-nav { background: #f6f4ef; }
  .business-maituo .site-nav a { border-bottom-color: #d9d8d2; }
}

@media (max-width: 560px) {
  .tone-hero, .business-miao .tone-hero { min-height: 480px; }
  .tone-hero .business-logo { width: 50px; height: 50px; }
  .tone-hero h1, .business-miao .tone-hero h1 { font-size: 38px; }
  .tone-hero .hero-summary { line-height: 1.7; }
  .brand-proof { min-height: 160px; padding: 18px 20px; }
  .brand-proof article { padding: 14px 12px; }
  .brand-proof strong { font-size: 17px; }
  .brand-proof span { font-size: 11px; }
  .miao-services .service-grid, .buer-sectors .service-grid, .maituo-services .service-grid, .zhiying-solutions .service-grid { grid-template-columns: 1fr; }
  .miao-services .service-grid article, .buer-sectors .service-grid article, .maituo-services .service-grid article, .zhiying-solutions .service-grid article { min-height: 156px; border-right: 0; border-bottom: 1px solid currentColor; }
  .miao-services .service-grid article:nth-last-child(-n+2), .buer-sectors .service-grid article:nth-last-child(-n+2), .maituo-services .service-grid article:nth-last-child(-n+2), .zhiying-solutions .service-grid article:nth-last-child(-n+2) { border-bottom: 1px solid currentColor; }
  .miao-services .service-grid article:last-child, .buer-sectors .service-grid article:last-child, .maituo-services .service-grid article:last-child, .zhiying-solutions .service-grid article:last-child { border-bottom: 0; }
  .miao-services .service-grid h3, .maituo-services .service-grid h3, .zhiying-solutions .service-grid h3 { margin-top: 22px; }
  .architecture-flow { grid-template-columns: 1fr 1fr; }
  .architecture-flow span:nth-child(3) { border-left: 0; border-top: 1px solid #d9e1e3; }
  .architecture-flow span:nth-child(4) { border-top: 1px solid #d9e1e3; }
  .system-scope { grid-template-columns: 1fr; }
  .system-scope span { min-height: 76px; border-right: 0; }
  .system-scope span:nth-last-child(2) { border-bottom: 1px solid #d6dfe1; }
  .article-heading { padding: 54px 20px 18px; grid-template-columns: 40px 1fr; }
  .article-heading h2 { font-size: 28px; }
  .article-text { padding: 0 20px 26px; font-size: 16px; }
  .project-article blockquote { margin-left: 20px; margin-right: 20px; padding: 20px; font-size: 17px; }
  .article-image-group { grid-template-columns: 1fr !important; gap: 4px; }
  .article-divider { margin-left: 20px; margin-right: 20px; }
}

/* Unified project filtering, consultation and published content. */
.filter-row button { min-width: 112px; min-height: 42px; padding: 8px 13px; display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--muted); background: transparent; border: 1px solid var(--line); cursor: pointer; }
.filter-row button span { padding: 0; color: inherit; border: 0; font-size: inherit; }
.filter-row button b { color: inherit; font: 700 11px ui-monospace, monospace; }
.filter-row button:hover, .filter-row button.active { color: white; border-color: var(--charcoal); background: var(--charcoal); }
.project-filter-empty { grid-column: 1 / -1; min-height: 220px; display: grid; place-items: center; color: var(--muted); border-top: 1px solid var(--line); }
.consult-layout { min-height: calc(100vh - 84px); display: grid; grid-template-columns: minmax(320px, .8fr) minmax(560px, 1.2fr); background: #f5f5f2; }
.consult-intro { padding: clamp(70px, 8vw, 130px) clamp(34px, 7vw, 110px); color: white; background: #11171b; }
.consult-intro h1 { max-width: 560px; margin: 18px 0 24px; font-size: clamp(46px, 6vw, 88px); line-height: 1; }
.consult-intro > p:last-of-type { max-width: 480px; color: #b8bdc0; font-size: 17px; line-height: 1.85; }
.consult-support { margin-top: 70px; padding-top: 24px; display: grid; gap: 10px; border-top: 1px solid #394044; }
.consult-support span, .consult-support small { color: #8d9599; font-size: 11px; }
.consult-support a { width: fit-content; color: white; font-size: 16px; }
.consult-form { padding: clamp(60px, 7vw, 110px) clamp(30px, 7vw, 100px); align-self: stretch; }
.consult-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 16px; }
.consult-grid label { min-width: 0; display: grid; gap: 8px; }
.consult-grid label > span { color: #5f6669; font-size: 12px; }
.consult-grid input, .consult-grid select, .consult-grid textarea { width: 100%; min-height: 48px; padding: 12px 13px; color: #161c1f; background: white; border: 1px solid #cfd2d0; border-radius: 0; font: inherit; }
.consult-grid textarea { min-height: 138px; resize: vertical; }
.consult-grid input:focus, .consult-grid select:focus, .consult-grid textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.consult-grid .wide { grid-column: 1 / -1; }
.form-trap { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.privacy-consent { margin: 22px 0; display: flex; align-items: flex-start; gap: 9px; color: #6b7174; font-size: 12px; line-height: 1.6; }
.privacy-consent input { width: 17px; height: 17px; flex: 0 0 auto; accent-color: var(--accent); }
.consult-submit { min-width: 180px; justify-content: center; border: 0; cursor: pointer; }
.consult-submit:disabled { opacity: .55; cursor: wait; }
.consult-status { min-height: 24px; margin-top: 15px; color: #60676a; font-size: 12px; }
.consult-status.success { color: #216b46; }
.consult-status.error { color: #a42c24; }
.article-index { padding-top: 20px; padding-bottom: 100px; }
.article-row { min-height: 150px; padding: 28px 0; display: flex; align-items: center; justify-content: space-between; gap: 30px; color: var(--ink); border-bottom: 1px solid var(--line); }
.article-row:first-child { border-top: 1px solid var(--line); }
.article-row span:first-child { min-width: 0; }
.article-row small { color: var(--accent); font: 700 10px ui-monospace, monospace; text-transform: uppercase; }
.article-row strong { margin: 12px 0 8px; display: block; font-size: clamp(24px, 3vw, 38px); }
.article-row p { max-width: 760px; color: var(--muted); line-height: 1.7; }
.public-article { padding-bottom: 110px; }
.public-article > header { max-width: 980px; margin: 0 auto; padding: 100px 30px 60px; }
.public-article > header h1 { margin: 18px 0 24px; font-size: clamp(42px, 7vw, 86px); line-height: 1.05; }
.public-article > header > p:last-child { max-width: 760px; color: var(--muted); font-size: 17px; line-height: 1.8; }
.article-cover { max-width: 1320px; margin: 0 auto 60px; }
.article-cover img { width: 100%; max-height: 760px; object-fit: cover; }
.article-body { max-width: 860px; margin: 0 auto; padding: 0 30px; }
.article-body h2 { margin: 58px 0 20px; font-size: 34px; }
.article-body p { margin-bottom: 24px; color: #596064; font-size: 17px; line-height: 2; white-space: pre-wrap; }
.article-body blockquote { margin: 36px 0; padding: 24px 28px; color: #303639; background: #f1f2ef; border-left: 3px solid var(--accent); font-size: 19px; line-height: 1.8; }
.article-body figure { margin: 45px 0; }
.article-body figure img { width: 100%; }
.article-body figcaption { margin-top: 10px; color: var(--muted); font-size: 11px; }
.article-body hr { margin: 54px 0; border: 0; border-top: 1px solid var(--line); }

@media (max-width: 980px) {
  .consult-layout { grid-template-columns: 1fr; }
  .consult-intro { padding: 64px 30px; }
  .consult-intro h1 { font-size: 52px; }
  .consult-support { margin-top: 45px; }
  .consult-form { padding: 55px 30px 80px; }
}

@media (max-width: 560px) {
  .filter-row { display: grid; grid-template-columns: 1fr 1fr; }
  .filter-row button { min-width: 0; }
  .consult-intro h1 { font-size: 44px; }
  .consult-grid { grid-template-columns: 1fr; }
  .consult-grid .wide { grid-column: 1; }
  .consult-submit { width: 100%; }
  .article-row { min-height: 120px; padding: 23px 0; }
  .article-row strong { font-size: 25px; }
  .public-article > header { padding: 70px 20px 44px; }
  .public-article > header h1 { font-size: 42px; }
  .article-body { padding: 0 20px; }
  .article-body h2 { font-size: 28px; }
}