@font-face { font-family: "Noto Sans SC"; src: url("public/fonts/noto-sans-sc-400.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "Noto Sans SC"; src: url("public/fonts/noto-sans-sc-700.woff2") format("woff2"); font-style: normal; font-weight: 700; font-display: swap; }

:root {
  --paper: #f3f3f2;
  --surface: #ffffff;
  --ink: #12171a;
  --muted: #687078;
  --orange: #ef5423;
  --blue: #1767aa;
  --line: #d4d7d8;
  --dark: #10171b;
  --dark-card: #192126;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif; font-size: 12px; line-height: 1.65; }
img { display: block; width: 100%; }
a { color: inherit; }
svg { width: 1em; height: 1em; stroke-width: 1.7; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(243,243,242,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.nav-wrap { width: min(1120px, calc(100% - 48px)); height: 64px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 31px; height: 27px; display: block; object-fit: contain; mix-blend-mode: multiply; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 12px; }
.brand-copy small { margin-top: 3px; color: var(--muted); font: 7px/1.2 Arial, sans-serif; }
.main-nav { display: flex; align-items: center; gap: 24px; }
.main-nav a { position: relative; text-decoration: none; font-size: 11px; font-weight: 600; letter-spacing: .04em; }
.main-nav a:not(.nav-contact)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--orange); transition: right .25s; }
.main-nav a:hover::after { right: 0; }
.main-nav .nav-contact { padding: 7px 14px; border: 1px solid var(--ink); }
.menu-toggle { display: none; border: 0; background: none; padding: 8px; }
.menu-toggle span:not(.sr-only) { display: block; width: 22px; height: 2px; margin: 4px; background: var(--ink); }

.container { width: min(1120px, calc(100% - 48px)); margin: auto; }
.section { padding: 58px 0 64px; }
.section-meta { height: 37px; margin-bottom: 30px; border-bottom: 1px solid var(--line); display: flex; align-items: flex-start; justify-content: space-between; color: var(--muted); font: 7px/1 Arial, sans-serif; letter-spacing: .13em; }
.section-meta > strong { font-weight: 500; }
.mini-brand { display: flex; align-items: center; gap: 7px; color: var(--ink); letter-spacing: 0; }
.mini-brand img { width: 21px; height: 17px; display: block; object-fit: contain; mix-blend-mode: multiply; }
.mini-brand em { font-style: normal; font-family: "Microsoft YaHei", sans-serif; font-size: 8px; font-weight: 700; }
.title-row { margin-bottom: 27px; }
.eyebrow { margin: 0 0 7px; color: var(--orange); font: 700 12px/1 Arial, sans-serif; letter-spacing: .18em; }
h1, h2 { margin: 0; font-size: 28px; line-height: 1.08; letter-spacing: -.04em; }
h1::after, .section:not(.intro-section) .title-row h2::after { content: ""; display: block; width: 54px; height: 3px; margin-top: 12px; background: var(--orange); }
h1 small, .title-row h2 small { margin-left: 13px; color: var(--muted); font: 500 12px/1 Arial, sans-serif; letter-spacing: .22em; vertical-align: middle; }

.about-grid { display: grid; grid-template-columns: 1.08fr 1fr; gap: 22px; margin-bottom: 28px; }
.about-grid article { min-height: 210px; padding: 24px 28px; }
.about-cn { border-left: 3px solid var(--orange); background: var(--surface); }
.about-en { background: #e9e9e8; color: #52595e; font-family: Arial, sans-serif; }
.about-grid p { margin: 0 0 13px; font-size: 11px; line-height: 1.85; }
.quick-services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin-bottom: 23px; }
.quick-services > div { min-height: 70px; padding: 14px 16px; border-top: 2px solid var(--orange); border-radius: 4px; background: var(--surface); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.quick-services strong { display: block; margin-bottom: 4px; font-size: 12px; line-height: 1.2; }
.quick-services span { display: block; color: var(--muted); font: 6.5px/1.35 Arial, sans-serif; letter-spacing: .09em; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.capability-grid article { min-height: 235px; padding: 25px 22px; border-top: 3px solid var(--blue); border-radius: 4px; background: var(--surface); box-shadow: 0 1px 4px rgba(0,0,0,.08); }
.icon-box { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 24px; color: var(--blue); font-size: 29px; font-style: normal; }
.capability-grid h3 { margin: 0 0 3px; font-size: 13px; line-height: 1.2; }
.capability-grid b { display: block; margin-bottom: 14px; color: var(--orange); font: 700 7px/1.2 Arial, sans-serif; letter-spacing: .13em; }
.capability-grid p { margin: 0; font-size: 10px; line-height: 1.75; }

.gallery-section { padding-top: 64px; }
.gallery-grid { display: grid; grid-template-columns: repeat(12, 1fr); grid-template-rows: 330px 300px; gap: 16px; }
.gallery-grid figure { position: relative; grid-column: span 3; min-width: 0; margin: 0; overflow: hidden; border-radius: 3px; background: #d8dcdd; }
.gallery-grid .g-wide { grid-column: span 6; }
.gallery-grid figure:nth-child(n + 4) { grid-column: span 4; }
.gallery-grid img { height: 100%; object-fit: cover; }
.gallery-grid figcaption { position: absolute; left: 10px; bottom: 8px; color: var(--surface); font: 6px/1 Arial, sans-serif; letter-spacing: .08em; text-shadow: 0 1px 2px #000; }
.gallery-note { margin: 27px 0 0; color: var(--muted); text-align: center; font-size: 8px; letter-spacing: .04em; }

.quality-section { padding-top: 64px; }
.process-list { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; padding: 0; margin: 0 0 22px; list-style: none; }
.process-list li { min-height: 84px; padding: 13px 12px; border: 1px solid #c6cacc; border-radius: 4px; background: var(--surface); }
.process-list b { display: grid; place-items: center; width: 30px; height: 30px; margin-bottom: 10px; border-radius: 50%; color: var(--surface); background: var(--orange); font: 700 14px/1 Arial; }
.process-list strong { display: block; font-size: 10px; line-height: 1.2; }
.process-list span { display: block; margin-top: 4px; color: var(--muted); font: 6px/1.25 Arial, sans-serif; letter-spacing: .05em; }
.quality-grid { display: grid; grid-template-columns: 1fr 1.08fr; gap: 22px; }
.quality-points { display: flex; flex-direction: column; justify-content: flex-start; min-height: 420px; padding: 31px 34px; border-radius: 4px; background: var(--surface); box-shadow: 0 1px 4px rgba(0,0,0,.07); }
.quality-points > div { display: grid; grid-template-columns: 30px 1fr; gap: 14px; align-items: start; padding: 12px 0; }
.quality-points i { color: var(--blue); font-size: 22px; font-style: normal; line-height: 1; }
.quality-points p { margin: 0; }
.quality-points strong { display: block; margin-bottom: 3px; font-size: 10px; }
.quality-points span { display: block; color: var(--muted); font: 7px/1.4 Arial, sans-serif; }
.inspection-photo { min-height: 420px; margin: 0; overflow: hidden; border-radius: 4px; }
.inspection-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }
.promise-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 24px; padding: 15px 23px; border-radius: 4px; color: var(--surface); background: var(--dark); }
.promise-bar span { position: relative; padding-left: 19px; font-size: 9px; }
.promise-bar span::before { content: ""; position: absolute; left: 0; top: 5px; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); }
.promise-bar small { display: block; color: #b1b9bd; font: 6px/1.4 Arial, sans-serif; }

.contact-section { position: relative; overflow: hidden; padding: 105px 0 32px; color: #e9eef0; background-color: var(--dark); background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 48px 48px; }
.contact-section h2 { margin: 0 0 8px; color: var(--surface); font-size: 31px; }
.contact-section h3 { margin: 0 0 36px; color: #c5cdd1; font: 500 8px/1 Arial, sans-serif; letter-spacing: .2em; }
.contact-intro { max-width: 840px; margin-bottom: 38px; color: #b9c1c5; }
.contact-intro p { margin: 0 0 14px; font-size: 10px; line-height: 1.8; }
.contact-card { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 58px; padding: 35px 38px; border: 1px solid #313b40; border-radius: 8px; background: rgba(25,33,38,.92); box-shadow: 0 20px 50px rgba(0,0,0,.14); }
.contact-card > div { display: grid; grid-template-columns: 24px 1fr; gap: 12px; align-items: start; }
.contact-card i { color: var(--orange); font-size: 18px; font-style: normal; }
.contact-card p { display: flex; flex-direction: column; gap: 4px; margin: 0; }
.contact-card span { color: #8e999f; font: 14px/1.2 Arial, sans-serif; letter-spacing: .14em; }
.contact-card strong, .contact-card a { color: var(--surface); font-size: 14px; font-weight: 600; text-decoration: none; }
.contact-card small { color: #929da3; font: 14px/1.4 Arial, sans-serif; }
.contact-wide { grid-column: 1 / -1; }
.contact-section footer { display: flex; justify-content: space-between; margin-top: 25px; padding-top: 18px; border-top: 1px solid #273136; color: #7d898f; font-size: 14px; }

/* Typography calibrated to the visual scale of the supplied brochure. */
body { font-size: 16px; line-height: 1.7; }
.brand-copy strong { font-size: 15px; }
.brand-copy small { font-size: 11px; }
.main-nav a { font-size: 14px; }
.section-meta { font-size: 12px; }
.mini-brand em { font-size: 13px; }
h1, h2 { font-size: 36px; }
.title-row span { font-size: 13px; }
.about-grid p { font-size: 17px; line-height: 1.75; }
.quick-services strong { font-size: 16px; }
.quick-services span { font-size: 11px; }
.capability-grid h3 { font-size: 17px; }
.capability-grid b { font-size: 11px; }
.capability-grid p { font-size: 15px; line-height: 1.65; }
.gallery-note { font-size: 12px; }
.process-list strong { font-size: 14px; }
.process-list span { font-size: 10px; }
.quality-points strong { font-size: 15px; }
.quality-points span { font-size: 13px; line-height: 1.65; }
.promise-bar span { font-size: 13px; }
.contact-section h2 { font-size: 38px; }
.contact-intro p { font-size: 15px; line-height: 1.75; }
.contact-card span { font-size: 14px; }
.contact-card strong, .contact-card a { font-size: 15px; }

@media (max-width: 780px) {
  .nav-wrap, .container { width: min(100% - 32px, 560px); }
  .nav-wrap { height: 60px; }
  .brand-copy strong { font-size: 13px; }
  .menu-toggle { display: block; }
  .main-nav { position: absolute; top: 60px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 16px 18px; border-bottom: 1px solid var(--line); background: var(--paper); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px; font-size: 12px; }
  .main-nav .nav-contact { border: 0; }
  .section { padding: 46px 0; }
  .section-meta { margin-bottom: 24px; }
  .mini-brand em { font-size: 10px; }
  h1, h2 { font-size: 28px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-grid article { min-height: auto; padding: 20px; }
  .quick-services, .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-grid article { min-height: 215px; padding: 20px 18px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-template-rows: 220px 220px 220px; gap: 9px; }
  .gallery-grid figure, .gallery-grid figure:nth-child(n + 4) { grid-column: span 1; }
  .gallery-grid .g-wide { grid-column: span 2; }
  .process-list { grid-template-columns: repeat(3, 1fr); gap: 9px; }
  .quality-grid { grid-template-columns: 1fr; }
  .quality-points, .inspection-photo { min-height: 390px; }
  .promise-bar { grid-template-columns: repeat(2, 1fr); }
  .contact-section { padding-top: 70px; }
  .contact-card { grid-template-columns: 1fr; gap: 24px; padding: 28px 23px; }
  .contact-wide { grid-column: auto; }
}

@media (max-width: 430px) {
  body { font-size: 14px; }
  .nav-wrap, .container { width: calc(100% - 28px); }
  .brand-copy small { display: none; }
  .quick-services { gap: 9px; }
  .quick-services > div { padding: 12px; }
  .capability-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
  .capability-grid article { min-height: 205px; padding: 18px 15px; }
  .gallery-grid { grid-template-rows: 165px 175px 175px; }
  .process-list li { padding: 11px 9px; }
  .quality-points { min-height: auto; padding: 24px 20px; }
  .inspection-photo { min-height: 360px; }
  .contact-section h2 { font-size: 27px; }
  .contact-section footer { flex-direction: column; gap: 8px; }
}