:root {
  --ink: #071b30;
  --ink-2: #0b2846;
  --blue: #0b4f87;
  --blue-bright: #1775b8;
  --gold: #c8a15b;
  --gold-soft: #e7d5ad;
  --paper: #f6f8fb;
  --white: #ffffff;
  --muted: #627186;
  --line: rgba(7, 27, 48, 0.12);
  --shadow: 0 24px 70px rgba(7, 27, 48, 0.12);
  --max: 1240px;
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
::selection { color: var(--white); background: var(--blue); }

.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.section { padding: 104px 0; }
.section-sm { padding: 72px 0; }
.section-muted { background: var(--paper); }
.section-dark { color: var(--white); background: var(--ink); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow::before { width: 36px; height: 1px; content: ""; background: currentColor; }
.display-title, h1, h2, h3, p { margin-top: 0; }
.display-title {
  margin-bottom: 24px;
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -.04em;
}
.section-title {
  margin-bottom: 22px;
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.03em;
}
.lead { max-width: 760px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.section-dark .lead { color: rgba(255,255,255,.68); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 52px; }
.section-head > div:first-child { max-width: 760px; }
.section-head .section-title { margin-bottom: 0; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 4px;
  border-bottom: 1px solid currentColor;
  color: var(--blue);
  font-weight: 700;
  white-space: nowrap;
}
.text-link::after { content: "\2192"; transition: transform .25s ease; }
.text-link:hover::after { transform: translateX(5px); }
.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.button:hover { transform: translateY(-2px); background: #d8b875; }
.button-outline { border-color: rgba(255,255,255,.4); background: transparent; color: var(--white); }
.button-outline:hover { border-color: var(--gold); background: transparent; color: var(--gold-soft); }

.topbar { background: var(--ink); color: rgba(255,255,255,.72); font-size: 13px; }
.topbar-inner { display: flex; min-height: 36px; align-items: center; justify-content: space-between; gap: 20px; }
.topbar-list { display: flex; align-items: center; gap: 26px; }
.topbar strong { color: var(--white); font-weight: 600; }
.site-header { position: sticky; z-index: 1000; top: 0; border-bottom: 1px solid rgba(7,27,48,.08); background: rgba(255,255,255,.96); backdrop-filter: blur(16px); }
.header-inner { display: flex; min-height: 88px; align-items: center; justify-content: space-between; gap: 28px; }
.brand img { width: 255px; height: auto; }
.nav-list { display: flex; align-items: center; gap: 34px; margin: 0; padding: 0; list-style: none; }
.nav-link { position: relative; display: inline-block; padding: 30px 0; color: #28384a; font-size: 15px; font-weight: 600; }
.nav-link::after { position: absolute; right: 0; bottom: 22px; left: 0; height: 2px; content: ""; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.nav-link:hover, .nav-link.is-active { color: var(--blue); }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.header-phone { display: flex; flex-direction: column; padding-left: 24px; border-left: 1px solid var(--line); line-height: 1.35; }
.header-phone small { color: var(--muted); font-size: 12px; }
.header-phone strong { color: var(--blue); font-size: 16px; }
.menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { display: block; width: 24px; height: 2px; background: var(--ink); content: ""; transition: .25s ease; }
.menu-toggle span { position: relative; }
.menu-toggle span::before { position: absolute; top: -7px; }
.menu-toggle span::after { position: absolute; top: 7px; }
.nav-open .menu-toggle span { background: transparent; }
.nav-open .menu-toggle span::before { top: 0; transform: rotate(45deg); }
.nav-open .menu-toggle span::after { top: 0; transform: rotate(-45deg); }

.home-hero { position: relative; overflow: hidden; min-height: 690px; background: var(--ink); color: var(--white); }
.home-hero::before { position: absolute; inset: 0; z-index: 1; content: ""; background: linear-gradient(90deg, rgba(7,27,48,1) 0%, rgba(7,27,48,.96) 42%, rgba(7,27,48,.24) 72%, rgba(7,27,48,.08)); }
.home-hero::after { position: absolute; top: 0; bottom: 0; left: 55%; z-index: 2; width: 1px; content: ""; background: rgba(255,255,255,.18); }
.hero-media { position: absolute; inset: 0 0 0 40%; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: left center; filter: saturate(.78) contrast(1.03); }
.hero-content { position: relative; z-index: 3; display: flex; min-height: 690px; max-width: 690px; flex-direction: column; justify-content: center; padding: 70px 0 92px; }
.hero-content .display-title { max-width: 660px; }
.hero-copy { max-width: 590px; margin-bottom: 34px; color: rgba(255,255,255,.76); font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-index { position: absolute; right: 34px; bottom: 28px; z-index: 3; color: rgba(255,255,255,.6); font-family: Georgia, serif; font-size: 14px; letter-spacing: .2em; writing-mode: vertical-rl; }

.trust-band { position: relative; z-index: 5; margin-top: -54px; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255,255,255,.35); background: var(--white); box-shadow: var(--shadow); }
.trust-item { min-height: 124px; padding: 28px 30px; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: 0; }
.trust-number { color: var(--blue); font-family: Georgia, "Times New Roman", serif; font-size: 34px; line-height: 1.2; }
.trust-number span { color: var(--gold); font-size: 17px; }
.trust-label { margin-top: 8px; color: var(--muted); font-size: 14px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card { position: relative; min-height: 340px; overflow: hidden; padding: 36px; border: 1px solid var(--line); background: var(--white); transition: transform .3s ease, box-shadow .3s ease; }
.feature-card::before { position: absolute; top: 0; left: 0; width: 100%; height: 3px; content: ""; background: var(--gold); transform: scaleX(.22); transform-origin: left; transition: transform .3s ease; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-index { color: var(--gold); font-family: Georgia, serif; font-size: 14px; letter-spacing: .12em; }
.feature-card h3 { margin: 68px 0 14px; font-family: "Noto Serif SC", "Songti SC", serif; font-size: 28px; font-weight: 600; }
.feature-card p { color: var(--muted); }
.limit { margin-top: 34px; color: var(--blue); font-size: 14px; font-weight: 700; }
.limit strong { margin-right: 6px; font-family: Georgia, serif; font-size: 32px; font-weight: 500; }

.capability-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: start; }
.capability-sticky { position: sticky; top: 140px; }
.capability-list { border-top: 1px solid rgba(255,255,255,.18); }
.capability-item { display: grid; grid-template-columns: 76px 1fr; gap: 22px; padding: 30px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.capability-item .num { color: var(--gold); font-family: Georgia, serif; font-size: 18px; }
.capability-item h3 { margin-bottom: 7px; font-size: 20px; }
.capability-item p { margin-bottom: 0; color: rgba(255,255,255,.62); }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-media { position: relative; min-height: 470px; overflow: hidden; background: var(--ink-2); }
.about-media img { width: 100%; height: 100%; min-height: 470px; object-fit: cover; }
.about-media::after { position: absolute; inset: auto 0 0; height: 45%; content: ""; background: linear-gradient(transparent, rgba(7,27,48,.72)); }
.about-seal { position: absolute; right: 24px; bottom: 22px; z-index: 2; width: 130px; color: var(--white); font-size: 13px; line-height: 1.55; }
.about-seal strong { display: block; color: var(--gold-soft); font-family: Georgia, serif; font-size: 34px; }
.value-row { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 32px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.value-row span { padding: 18px 8px; border-right: 1px solid var(--line); color: var(--blue); text-align: center; font-weight: 700; }
.value-row span:last-child { border: 0; }

.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); counter-reset: process; }
.process-step { position: relative; min-height: 240px; padding: 34px 36px 32px; border: 1px solid var(--line); border-right: 0; counter-increment: process; }
.process-step:last-child { border-right: 1px solid var(--line); }
.process-step::before { display: block; margin-bottom: 45px; color: var(--gold); content: "0" counter(process); font-family: Georgia, serif; font-size: 16px; }
.process-step h3 { margin-bottom: 10px; font-size: 20px; }
.process-step p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

.news-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 44px; }
.featured-news { min-height: 460px; display: flex; flex-direction: column; justify-content: end; padding: 46px; background: linear-gradient(150deg, #0b4f87, #071b30 68%); color: var(--white); }
.featured-news .date { color: var(--gold-soft); font-family: Georgia, serif; font-size: 14px; letter-spacing: .08em; }
.featured-news h3 { max-width: 620px; margin: 18px 0 16px; font-family: "Noto Serif SC", "Songti SC", serif; font-size: clamp(28px, 3vw, 40px); font-weight: 600; line-height: 1.35; }
.featured-news p { max-width: 620px; color: rgba(255,255,255,.68); }
.news-list { border-top: 1px solid var(--line); }
.news-row { display: grid; grid-template-columns: 92px 1fr; gap: 22px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.news-row time { color: var(--muted); font-family: Georgia, serif; font-size: 14px; }
.news-row h3 { margin: 0; font-size: 17px; line-height: 1.6; }
.news-row:hover h3 { color: var(--blue); }

.cta { position: relative; overflow: hidden; padding: 86px 0; background: var(--blue); color: var(--white); }
.cta::after { position: absolute; top: -260px; right: -140px; width: 560px; height: 560px; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; content: ""; box-shadow: 0 0 0 64px rgba(255,255,255,.025), 0 0 0 128px rgba(255,255,255,.02); }
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta h2 { max-width: 780px; margin-bottom: 10px; font-family: "Noto Serif SC", "Songti SC", serif; font-size: clamp(30px, 4vw, 48px); font-weight: 600; line-height: 1.3; }
.cta p { margin-bottom: 0; color: rgba(255,255,255,.72); }

.page-hero { position: relative; overflow: hidden; padding: 106px 0 90px; background: var(--ink); color: var(--white); }
.page-hero::before { position: absolute; inset: 0; content: ""; background: linear-gradient(115deg, transparent 56%, rgba(23,117,184,.34)), repeating-linear-gradient(90deg, transparent 0, transparent calc(25% - 1px), rgba(255,255,255,.05) 25%); }
.page-hero .container { position: relative; z-index: 1; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 42px; color: rgba(255,255,255,.48); font-size: 13px; }
.breadcrumbs a:hover { color: var(--gold-soft); }
.page-hero h1 { max-width: 820px; margin-bottom: 18px; font-family: "Noto Serif SC", "Songti SC", serif; font-size: clamp(42px, 6vw, 72px); font-weight: 600; line-height: 1.2; }
.page-hero p { max-width: 720px; margin-bottom: 0; color: rgba(255,255,255,.68); font-size: 18px; }

.product-intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: center; }
.product-diagram { padding: 48px; background: var(--ink); }
.product-diagram img { width: 100%; }
.product-points { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 30px; border: 1px solid var(--line); }
.product-point { padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-point:nth-child(2n) { border-right: 0; }
.product-point:nth-last-child(-n+2) { border-bottom: 0; }
.product-point strong { display: block; margin-bottom: 4px; color: var(--blue); }
.solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.solution-card { padding: 42px; border: 1px solid var(--line); background: var(--white); }
.solution-card .tag { color: var(--gold); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.solution-card h3 { margin: 26px 0 14px; font-size: 27px; }
.solution-card p { color: var(--muted); }

.principles { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255,255,255,.18); }
.principle { padding: 44px 28px; border-right: 1px solid rgba(255,255,255,.18); text-align: center; }
.principle:last-child { border: 0; }
.principle strong { display: block; color: var(--gold-soft); font-family: "Noto Serif SC", "Songti SC", serif; font-size: 28px; font-weight: 600; }
.principle span { color: rgba(255,255,255,.56); font-size: 13px; letter-spacing: .12em; }
.cooperate-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.cooperate-card { min-height: 280px; padding: 40px; border: 1px solid var(--line); background: var(--white); }
.cooperate-card .num { color: var(--gold); font-family: Georgia, serif; }
.cooperate-card h3 { margin: 64px 0 12px; font-size: 27px; }
.cooperate-card p { margin-bottom: 0; color: var(--muted); }
.partner-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.partner-logo { display: flex; min-height: 130px; align-items: center; justify-content: center; background: var(--white); filter: grayscale(1); transition: filter .25s ease; }
.partner-logo:hover { filter: grayscale(0); }
.partner-logo img { max-width: 72%; max-height: 74px; }

.qualification-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.qualification-card { padding: 24px; border: 1px solid var(--line); background: var(--white); cursor: zoom-in; transition: transform .25s ease, box-shadow .25s ease; }
.qualification-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.qualification-card img { width: 100%; height: 420px; object-fit: contain; background: var(--paper); }
.qualification-card h3 { margin: 22px 0 4px; font-size: 18px; }
.qualification-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.qualification-card.wide { grid-column: 1 / -1; }
.qualification-card.wide .cert-pages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.qualification-card.wide .cert-pages img { height: 360px; }
.lightbox { position: fixed; z-index: 2000; inset: 0; display: none; align-items: center; justify-content: center; padding: 32px; background: rgba(3,14,25,.9); }
.lightbox.is-open { display: flex; }
.lightbox img { max-width: min(100%, 1100px); max-height: calc(100vh - 64px); }
.lightbox-close { position: absolute; top: 20px; right: 24px; width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; background: transparent; color: var(--white); font-size: 27px; cursor: pointer; }

.company-story { display: grid; grid-template-columns: .8fr 1.2fr; gap: 86px; align-items: start; }
.since-mark { position: sticky; top: 140px; padding-top: 8px; color: var(--blue); }
.since-mark span { display: block; color: var(--muted); font-size: 14px; letter-spacing: .18em; }
.since-mark strong { display: block; font-family: Georgia, serif; font-size: clamp(68px, 10vw, 138px); font-weight: 400; line-height: 1; letter-spacing: -.06em; }
.story-copy p { color: #425166; font-size: 18px; line-height: 2; }
.story-copy .section-title { margin-bottom: 32px; }
.company-image { margin-top: 40px; }
.company-image img { width: 100%; min-height: 380px; object-fit: cover; }
.company-facts { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 34px; border: 1px solid var(--line); }
.company-fact { padding: 26px; border-right: 1px solid var(--line); }
.company-fact:last-child { border: 0; }
.company-fact strong { display: block; color: var(--blue); font-family: Georgia, serif; font-size: 28px; }
.company-fact span { color: var(--muted); font-size: 13px; }

.news-page { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line); }
.news-page-row { display: grid; grid-template-columns: 160px 1fr 42px; gap: 36px; align-items: start; padding: 34px 8px; border-bottom: 1px solid var(--line); transition: background .25s ease, padding .25s ease; }
.news-page-row:hover { padding-right: 20px; padding-left: 20px; background: var(--paper); }
.news-page-date { color: var(--muted); font-family: Georgia, serif; font-size: 15px; }
.news-page-row h2 { margin-bottom: 8px; font-size: 22px; line-height: 1.5; }
.news-page-row p { margin-bottom: 0; color: var(--muted); }
.news-page-arrow { color: var(--gold); font-size: 24px; }

.article-wrap { display: grid; grid-template-columns: minmax(0, 820px) 260px; gap: 90px; align-items: start; }
.article-header { padding-bottom: 34px; border-bottom: 1px solid var(--line); }
.article-header h1 { margin-bottom: 22px; font-family: "Noto Serif SC", "Songti SC", serif; font-size: clamp(32px, 5vw, 50px); font-weight: 600; line-height: 1.4; }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 14px; }
.article-body { padding-top: 34px; }
.article-body p { margin-bottom: 24px; color: #36475a; font-size: 17px; line-height: 2.05; text-align: justify; }
.article-side { position: sticky; top: 138px; padding: 28px; border-top: 3px solid var(--gold); background: var(--paper); }
.article-side strong { display: block; margin-bottom: 12px; font-size: 18px; }
.article-side p { margin-bottom: 18px; color: var(--muted); font-size: 14px; }

.site-footer { padding: 72px 0 0; background: #041321; color: rgba(255,255,255,.64); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr 1fr; gap: 70px; padding-bottom: 56px; }
.footer-brand img { width: 260px; padding: 10px 14px; background: var(--white); }
.footer-brand p { max-width: 440px; margin: 24px 0 0; font-size: 14px; }
.footer-title { margin-bottom: 20px; color: var(--white); font-size: 16px; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; }
.footer-links a { font-size: 14px; }
.footer-links a:hover { color: var(--gold-soft); }
.footer-contact strong { display: block; margin: 4px 0 16px; color: var(--gold-soft); font-family: Georgia, serif; font-size: 27px; }
.footer-contact p { margin-bottom: 8px; font-size: 14px; }
.copyright { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; }
.copyright a:hover { color: var(--white); }
.back-top { position: fixed; right: 22px; bottom: 22px; z-index: 900; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; background: var(--ink); color: var(--white); opacity: 0; pointer-events: none; cursor: pointer; transition: opacity .25s ease, transform .25s ease; transform: translateY(8px); }
.back-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .header-phone { display: none; }
  .nav-list { gap: 22px; }
  .capability-layout, .about-grid, .product-intro, .company-story { gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .section { padding: 78px 0; }
  .topbar { display: none; }
  .site-header { background: var(--white); backdrop-filter: none; }
  .header-inner { min-height: 74px; }
  .brand img { width: 220px; }
  .menu-toggle { display: flex; }
  .site-nav {
    position: fixed;
    z-index: 1200;
    top: 74px;
    right: 0;
    bottom: 0;
    left: 0;
    min-height: calc(100vh - 74px);
    min-height: calc(100dvh - 74px);
    overflow-y: auto;
    padding: 28px 24px 48px;
    background: #071b30;
    box-shadow: 0 28px 60px rgba(3, 14, 25, .3);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
  }
  .nav-open .site-nav { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
  .nav-list { display: block; }
  .nav-link { display: block; padding: 18px 6px; border-bottom: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.86); font-size: 18px; }
  .nav-link::after { display: none; }
  .nav-link:hover, .nav-link.is-active { color: var(--gold-soft); }
  .home-hero, .hero-content { min-height: 620px; }
  .hero-media { inset: 0; opacity: .48; }
  .home-hero::before { background: linear-gradient(90deg, rgba(7,27,48,.98), rgba(7,27,48,.74)); }
  .home-hero::after { display: none; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .feature-grid, .process-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 290px; }
  .process-step { border-right: 1px solid var(--line); border-bottom: 0; }
  .process-step:last-child { border-bottom: 1px solid var(--line); }
  .capability-layout, .about-grid, .product-intro, .company-story, .article-wrap { grid-template-columns: 1fr; }
  .capability-sticky, .since-mark, .article-side { position: static; }
  .news-grid { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr 1fr; }
  .principle:nth-child(2) { border-right: 0; }
  .principle:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.18); }
  .qualification-card img { height: 330px; }
  .article-wrap { gap: 48px; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .section { padding: 64px 0; }
  .section-head, .cta-inner { display: block; }
  .section-head .text-link { margin-top: 24px; }
  .brand img { width: 190px; }
  .home-hero, .hero-content { min-height: 600px; }
  .hero-content { padding: 54px 0 72px; }
  .hero-content .display-title { font-size: 42px; }
  .hero-copy { font-size: 16px; }
  .hero-actions .button { width: 100%; }
  .trust-band { margin-top: 0; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { min-height: 100px; border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-item:last-child { border-bottom: 0; }
  .feature-grid, .solution-grid, .cooperate-grid, .qualification-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 28px; }
  .feature-card h3 { margin-top: 46px; }
  .capability-item { grid-template-columns: 48px 1fr; }
  .about-media, .about-media img { min-height: 340px; }
  .value-row { grid-template-columns: 1fr 1fr; }
  .value-row span:nth-child(2) { border-right: 0; }
  .value-row span:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .featured-news { min-height: 400px; padding: 30px; }
  .news-row { grid-template-columns: 78px 1fr; }
  .cta .button { margin-top: 28px; }
  .page-hero { padding: 78px 0 70px; }
  .product-points { grid-template-columns: 1fr; }
  .product-point { border-right: 0; }
  .product-point:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .principles { grid-template-columns: 1fr; }
  .principle { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.18); }
  .principle:last-child { border-bottom: 0; }
  .qualification-card.wide { grid-column: auto; }
  .qualification-card.wide .cert-pages { grid-template-columns: 1fr; }
  .qualification-card img, .qualification-card.wide .cert-pages img { height: 300px; }
  .company-facts { grid-template-columns: 1fr; }
  .company-fact { border-right: 0; border-bottom: 1px solid var(--line); }
  .company-fact:last-child { border-bottom: 0; }
  .news-page-row { grid-template-columns: 1fr 28px; gap: 10px 18px; }
  .news-page-date { grid-column: 1 / -1; }
  .news-page-row p { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 38px; }
  .footer-contact { grid-column: auto; }
  .copyright { display: block; }
  .copyright span { display: block; margin-bottom: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}