:root {
  --navy-950: #031d2c;
  --navy-900: #062d43;
  --navy-800: #0b405c;
  --navy-700: #14546f;
  --cyan: #00a7c8;
  --cyan-light: #6de2ee;
  --orange: #f4a01c;
  --ice: #edf7f8;
  --mist: #f4f7f8;
  --white: #ffffff;
  --ink: #0b2737;
  --muted: #5d707b;
  --line: rgba(12, 54, 74, .14);
  --shadow: 0 26px 70px rgba(4, 37, 53, .12);
  --radius: 4px;
  --container: min(1320px, calc(100vw - 64px));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.lang-th {
  font-family: "Noto Sans Thai", "Leelawadee UI", Tahoma, "Segoe UI", sans-serif;
}

body.lang-th h1,
body.lang-th h2,
body.lang-th h3,
body.lang-th .hero-title {
  letter-spacing: 0;
  line-height: 1.22;
}
body.menu-open, body.dialog-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
.container { width: var(--container); margin-inline: auto; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 9999; padding: 10px 18px; background: var(--white); color: var(--navy-900); }
.skip-link:focus { top: 16px; }

.topbar { background: var(--navy-950); color: rgba(255,255,255,.72); font-size: 12px; letter-spacing: .04em; }
.topbar-inner { height: 34px; display: flex; align-items: center; justify-content: space-between; }
.topbar p { margin: 0; }
.topbar-links { display: flex; gap: 28px; }
.topbar a { transition: color .2s; font-weight: 600; }
.topbar-links a:first-child { color: white; font-size: 13px; }
.topbar a:hover { color: var(--cyan-light); }

.site-header { position: sticky; top: 0; z-index: 100; height: 76px; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(0,0,0,.05); transition: box-shadow .25s, height .25s; }
.site-header.scrolled { box-shadow: 0 8px 32px rgba(3,29,44,.08); }
.nav-wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-logo { width: 44px; height: 44px; object-fit: contain; border-radius: 50%; flex: 0 0 auto; }
.brand-mark { position: relative; width: 42px; height: 42px; display: grid; place-items: center; border: 6px solid var(--navy-800); border-radius: 50%; transform: rotate(-20deg); }
.brand-mark::after { content: ""; position: absolute; width: 11px; height: 11px; border-radius: 50%; background: var(--orange); top: -6px; right: -3px; border: 3px solid white; }
.brand-mark i { width: 16px; height: 22px; background: var(--cyan); border-radius: 55% 45% 55% 45%; transform: rotate(45deg); display: block; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }
.brand-copy strong { color: var(--navy-900); font-size: 19px; letter-spacing: .15em; }
.brand-copy small { color: #72818a; font-size: 9px; letter-spacing: .16em; margin-top: 5px; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 600; }
.site-nav > a { position: relative; padding: 27px 0 25px; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 20px; height: 2px; background: var(--cyan); transition: right .25s; }
.site-nav > a:hover::after { right: 0; }
.site-nav .nav-cta { padding: 10px 19px; background: var(--navy-900); color: var(--white); }
.site-nav .nav-cta:hover { background: var(--cyan); }
.language-switcher { position: relative; align-self: stretch; display: flex; align-items: center; }
.language-current { min-width: 126px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 11px; border: 1px solid rgba(0,174,208,.28); background: var(--ice); color: var(--navy-900); font-size: 12px; font-weight: 800; cursor: pointer; }
.language-globe { width: 19px; height: 19px; display: grid; place-items: center; border: 1px solid var(--cyan); border-radius: 50%; color: var(--cyan); font-size: 12px; line-height: 1; }
.language-label { color: var(--navy-900); }
.language-hint { color: #71838d; font-size: 10px; font-weight: 700; }
.language-chevron { color: var(--cyan); }
.mobile-header-actions { display: none; align-items: center; margin-left: auto; }
.mobile-language-switcher { display: none; }
.language-menu { position: absolute; z-index: 5; top: calc(100% - 12px); right: 0; min-width: 120px; padding: 7px; background: white; border-top: 2px solid var(--cyan); box-shadow: 0 18px 42px rgba(3,29,44,.16); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s; }
.language-switcher.open .language-menu, .language-switcher:hover .language-menu, .language-switcher:focus-within .language-menu { opacity: 1; visibility: visible; transform: none; }
.language-menu a { display: block; padding: 9px 11px; color: var(--navy-900); font-size: 12px; }
.language-menu a:hover, .language-menu a.active { background: var(--ice); color: var(--cyan); }
.nav-dropdown { position: relative; align-self: stretch; display: flex; align-items: center; }
.nav-dropdown > a { position: relative; display: flex; align-items: center; gap: 5px; padding: 27px 0 25px; }
.nav-dropdown > a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 20px; height: 2px; background: var(--cyan); transition: right .25s; }
.nav-dropdown:hover > a::after, .nav-dropdown:focus-within > a::after { right: 0; }
.nav-dropdown-panel { position: absolute; top: calc(100% - 1px); left: 50%; width: 340px; padding: 12px; background: white; box-shadow: 0 24px 55px rgba(3,29,44,.18); border-top: 3px solid var(--cyan); opacity: 0; visibility: hidden; transform: translate(-50%, 10px); transition: .2s; }
.nav-dropdown:hover .nav-dropdown-panel, .nav-dropdown:focus-within .nav-dropdown-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-dropdown-panel a { display: grid; gap: 2px; padding: 12px 14px; transition: background .2s; }
.nav-dropdown-panel a:hover { background: var(--ice); }
.nav-dropdown-panel strong { color: var(--navy-900); font-size: 13px; }
.nav-dropdown-panel small { color: var(--muted); font-size: 11px; font-weight: 400; }
.menu-toggle { display: none; background: transparent; border: 0; width: 42px; height: 42px; padding: 9px; }
.menu-toggle span { display: block; height: 2px; background: var(--navy-900); margin: 5px 0; transition: transform .25s, opacity .25s; }

.hero { position: relative; min-height: calc(100vh - 110px); height: 760px; max-height: 860px; color: var(--white); overflow: hidden; display: flex; align-items: center; }
.hero-image { position: absolute; inset: 0; background: url('/assets/hero-water-treatment.webp') center/cover no-repeat; transform: scale(1.01); }
.hero-scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,29,44,.97) 0%, rgba(3,29,44,.9) 31%, rgba(3,29,44,.46) 58%, rgba(3,29,44,.03) 100%), linear-gradient(0deg, rgba(3,29,44,.28), transparent 42%); }
.hero-content { position: relative; z-index: 2; padding: 80px 0 66px; }
.eyebrow { margin: 0 0 16px; color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .2em; }
.eyebrow.light { color: var(--cyan-light); }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(46px, 5.3vw, 76px); line-height: 1.12; font-weight: 700; letter-spacing: -.04em; }
.hero h1 em { color: var(--cyan-light); font-style: normal; }
.hero-lead { max-width: 675px; margin: 26px 0 30px; color: rgba(255,255,255,.8); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 24px; min-height: 50px; padding: 0 24px; border: 1px solid transparent; font-size: 14px; font-weight: 700; cursor: pointer; transition: transform .2s, background .2s, border-color .2s, color .2s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--orange); color: var(--navy-950); }
.btn-primary:hover { background: #ffb435; }
.btn-ghost { border-color: rgba(255,255,255,.45); color: var(--white); }
.btn-ghost:hover { background: rgba(255,255,255,.1); border-color: white; }
.btn-outline { border-color: var(--navy-900); color: var(--navy-900); background: transparent; }
.btn-outline:hover { background: var(--navy-900); color: var(--white); }
.hero-trust { display: flex; gap: 46px; margin-top: 66px; }
.hero-trust span { display: flex; flex-direction: column; color: rgba(255,255,255,.65); font-size: 12px; letter-spacing: .04em; }
.hero-stat { position: relative; outline: none; cursor: help; }
.hero-stat::after { content: attr(data-tooltip); position: absolute; left: 0; bottom: calc(100% + 12px); width: 230px; padding: 10px 12px; background: rgba(2,23,32,.96); border-left: 2px solid var(--cyan-light); color: white; font-size: 11px; line-height: 1.6; letter-spacing: 0; box-shadow: 0 14px 30px rgba(0,0,0,.25); opacity: 0; visibility: hidden; transform: translateY(5px); transition: .2s; pointer-events: none; }
.hero-stat:hover::after, .hero-stat:focus-visible::after { opacity: 1; visibility: visible; transform: none; }
.hero-trust b { color: white; font-size: 31px; line-height: 1.2; letter-spacing: -.03em; }
.hero-trust sup { font-size: 14px; color: var(--cyan-light); margin-left: 2px; }
.hero-note { color: rgba(255,255,255,.42); font-size: 10px; margin: 7px 0 0; }
.scroll-cue { position: absolute; z-index: 3; right: 38px; bottom: 36px; display: flex; flex-direction: column; align-items: center; gap: 10px; color: rgba(255,255,255,.62); font-size: 10px; letter-spacing: .16em; writing-mode: vertical-rl; }
.scroll-cue span { height: 56px; width: 1px; background: linear-gradient(var(--cyan-light), transparent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: .3; transform: scaleY(.65); transform-origin: top; } 50% { opacity: 1; transform: scaleY(1); } }

.intro-strip { background: var(--cyan); color: var(--navy-950); }
.intro-strip-inner { min-height: 155px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 90px; align-items: center; }
.intro-strip .eyebrow { color: rgba(3,29,44,.65); margin-bottom: 7px; }
.intro-strip h2 { margin: 0; font-size: clamp(25px, 2.3vw, 35px); line-height: 1.4; }
.intro-strip-inner > p { margin: 0; padding-left: 32px; border-left: 1px solid rgba(3,29,44,.32); font-size: 14px; }

.section { padding: 112px 0; }
.section-heading { margin-bottom: 54px; }
.section-heading h2 { margin: 0; color: var(--navy-900); font-size: clamp(32px, 3.7vw, 48px); line-height: 1.25; letter-spacing: -.04em; }
.split-heading { display: grid; grid-template-columns: 1.2fr .8fr; gap: 100px; align-items: end; }
.split-heading > p, .heading-actions > p { margin: 0; color: var(--muted); font-size: 15px; }
.heading-actions { display: grid; gap: 14px; }
.text-link { color: var(--navy-800); font-size: 13px; font-weight: 800; border-bottom: 1px solid var(--cyan); padding-bottom: 3px; width: max-content; }
.text-link:hover { color: var(--cyan); }

.solutions { background: var(--mist); position: relative; overflow: hidden; }
.solutions::before { content: ""; position: absolute; width: 460px; height: 460px; border: 110px solid rgba(0,167,200,.055); border-radius: 50%; right: -170px; top: -170px; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; position: relative; }
.solution-card { min-height: 490px; padding: 38px 34px 32px; background: white; border-top: 3px solid transparent; box-shadow: 0 1px 0 rgba(0,0,0,.04); position: relative; display: flex; flex-direction: column; transition: transform .3s, box-shadow .3s, border-color .3s; overflow: hidden; }
.solution-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: var(--cyan); }
.solution-pure { background: linear-gradient(160deg, #eaf8fb, #ffffff 64%); }
.solution-reuse { background: linear-gradient(160deg, #eaf8f5, #ffffff 64%); }
.solution-gas { background: linear-gradient(160deg, #f0f3f4, #ffffff 64%); }
.solution-index { position: absolute; top: 20px; right: 25px; font-size: 62px; font-weight: 800; color: rgba(5,48,69,.06); line-height: 1; }
.solution-icon { width: 54px; height: 54px; margin: 8px 0 34px; padding: 8px; color: var(--cyan); fill: none; stroke: currentColor; stroke-width: 2.3; stroke-linecap: round; stroke-linejoin: round; border: 1px solid rgba(0,167,200,.22); border-radius: 50%; background: rgba(255,255,255,.72); }
.solution-kicker { color: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .18em; margin: 0 0 7px; }
.solution-card h3 { margin: 0 0 17px; font-size: 25px; line-height: 1.35; }
.solution-card > p:not(.solution-kicker) { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
.solution-card ul { list-style: none; padding: 0; margin: auto 0 23px; display: grid; gap: 8px; font-size: 13px; color: var(--muted); }
.solution-card li::before { content: "—"; color: var(--cyan); margin-right: 8px; }
.solution-card a { font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: space-between; padding-top: 18px; border-top: 1px solid var(--line); }
.solution-card a span { color: var(--cyan); font-size: 20px; }
.solution-card .solution-application { margin: 0 0 18px; padding: 10px 12px; background: rgba(255,255,255,.7); border-left: 2px solid var(--cyan); color: var(--navy-700); font-size: 11px; line-height: 1.6; }

.featured-project { background: #052f45; color: #fff; overflow: hidden; }
.featured-project-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(380px, .85fr); align-items: stretch; min-height: 570px; }
.featured-project-media { position: relative; min-height: 570px; margin-left: calc((100vw - min(var(--container), 1180px)) / -2); overflow: hidden; }
.featured-project-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,47,69,.06) 55%, #052f45 100%); pointer-events: none; }
.featured-project-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-proof { position: absolute; z-index: 2; left: max(28px, calc((100vw - min(var(--container), 1180px)) / 2)); bottom: 28px; padding: 10px 14px; background: rgba(2,27,40,.86); border-left: 3px solid var(--cyan); font-size: 12px; letter-spacing: .08em; }
.featured-project-copy { align-self: center; padding: 64px 0 64px 58px; }
.featured-project-copy h2 { max-width: 560px; margin: 14px 0 22px; font-size: clamp(34px, 3.2vw, 52px); line-height: 1.14; }
.featured-project-copy > p:not(.eyebrow):not(.project-boundary) { color: rgba(255,255,255,.76); line-height: 1.9; }
.project-facts { display: grid; grid-template-columns: repeat(2, 1fr); margin: 30px 0 22px; border: 1px solid rgba(255,255,255,.15); }
.project-facts div { padding: 17px 20px; border-right: 1px solid rgba(255,255,255,.12); border-bottom: 1px solid rgba(255,255,255,.12); }
.project-facts div:nth-child(2n) { border-right: 0; }
.project-facts div:nth-last-child(-n+2) { border-bottom: 0; }
.project-facts dt { color: var(--cyan); font-size: 10px; letter-spacing: .16em; }
.project-facts dd { margin: 5px 0 0; font-weight: 700; }
.project-boundary { margin: 0 0 28px; color: rgba(255,255,255,.52); font-size: 12px; line-height: 1.75; }
.featured-project-actions { display: flex; gap: 22px; align-items: center; }
.featured-project-actions .text-link { color: #fff; border-color: rgba(255,255,255,.32); }

.products { background: white; }
.filter-bar { display: flex; gap: 0; margin-bottom: 34px; border-bottom: 1px solid var(--line); }
.filter-btn { border: 0; background: none; padding: 12px 25px; color: var(--muted); font-size: 13px; font-weight: 700; cursor: pointer; position: relative; }
.filter-btn::after { content: ""; position: absolute; height: 2px; left: 50%; right: 50%; bottom: -1px; background: var(--cyan); transition: left .25s, right .25s; }
.filter-btn.active { color: var(--navy-900); }
.filter-btn.active::after { left: 0; right: 0; }
.filter-btn:focus-visible, .products-more-wrap button:focus-visible { outline: 3px solid rgba(0,167,200,.28); outline-offset: 3px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { border: 1px solid var(--line); background: white; cursor: pointer; transition: box-shadow .3s, transform .3s, border-color .3s; outline: none; }
.product-card:hover, .product-card:focus-visible { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.product-card[hidden] { display: none; }
.product-media { height: 235px; background: linear-gradient(135deg, #f6f9f9, #eaf1f3); overflow: hidden; position: relative; }
.product-media::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 -30px 60px rgba(3,29,44,.03); pointer-events: none; }
.product-media img { width: 100%; height: 100%; object-fit: contain; padding: 14px; transition: transform .45s; mix-blend-mode: multiply; filter: drop-shadow(0 13px 14px rgba(3,29,44,.11)); }
.product-media-clean { background: radial-gradient(circle at 50% 38%, #fff 0, #f2f6f7 46%, #e6eef1 100%); }
.product-media-clean img { width: 100%; max-width: none; height: 100%; margin: 0; padding: 13px; object-fit: contain; mix-blend-mode: normal; }
.media-note { position: absolute; right: 10px; bottom: 9px; z-index: 2; padding: 4px 7px; background: rgba(3,29,44,.72); color: rgba(255,255,255,.82); font-size: 9px; letter-spacing: .08em; }
.product-card:hover .product-media img { transform: scale(1.045); }
.product-body { padding: 24px 25px 22px; }
.product-body > span { color: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.product-body h3 { margin: 7px 0 9px; font-size: 21px; }
.product-body p { margin: 0 0 20px; color: var(--muted); font-size: 13px; min-height: 43px; }
.product-body button { display: flex; justify-content: space-between; width: 100%; border: 0; border-top: 1px solid var(--line); background: none; padding: 15px 0 0; font-size: 12px; font-weight: 800; cursor: pointer; }
.product-body button i { color: var(--cyan); font-style: normal; font-size: 18px; }
.products-more-wrap { margin-top: 40px; display: flex; justify-content: center; }
.products-more-wrap[hidden] { display: none; }

.industries { background: var(--navy-900); color: white; position: relative; overflow: hidden; }
.industries::before { content: "BOTIAN"; position: absolute; right: -30px; top: -45px; color: rgba(255,255,255,.025); font-size: 220px; font-weight: 900; letter-spacing: -.06em; }
.section-heading.centered { text-align: center; max-width: 730px; margin-inline: auto; }
.centered h2 { color: white; }
.centered > p:last-child { color: rgba(255,255,255,.6); margin: 16px auto 0; }
.industry-grid { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid rgba(255,255,255,.12); position: relative; }
.industry-card { min-height: 330px; padding: 27px 23px; border-right: 1px solid rgba(255,255,255,.12); position: relative; transition: background .25s; }
.industry-card:last-child { border-right: 0; }
.industry-card:hover { background: rgba(0,167,200,.16); }
.industry-card > span { display: block; color: rgba(255,255,255,.34); font-size: 11px; }
.line-icon { height: 75px; margin: 53px 0 28px; position: relative; }
.line-icon::before, .line-icon::after { content: ""; position: absolute; border: 2px solid var(--cyan-light); }
.chip::before { width: 43px; height: 43px; left: 4px; top: 8px; }
.chip::after { width: 22px; height: 22px; left: 14px; top: 18px; box-shadow: -21px 0 0 -9px var(--cyan-light), 21px 0 0 -9px var(--cyan-light), 0 -21px 0 -9px var(--cyan-light), 0 21px 0 -9px var(--cyan-light); }
.bottle::before { width: 28px; height: 48px; left: 10px; top: 15px; border-radius: 5px 5px 9px 9px; }
.bottle::after { width: 13px; height: 11px; left: 18px; top: 4px; border-bottom: 0; }
.plating::before { width: 48px; height: 33px; left: 2px; top: 25px; border-radius: 0 0 8px 8px; }
.plating::after { width: 28px; height: 27px; left: 12px; top: 5px; border-top: 0; }
.flask::before { width: 36px; height: 42px; left: 7px; top: 20px; transform: rotate(45deg); border-radius: 50% 50% 8px 50%; }
.flask::after { width: 12px; height: 22px; left: 30px; top: 4px; transform: rotate(-15deg); border-bottom: 0; }
.factory::before { width: 52px; height: 38px; left: 0; top: 26px; clip-path: polygon(0 36%, 27% 0, 27% 36%, 55% 0, 55% 36%, 100% 36%, 100% 100%, 0 100%); background: transparent; }
.factory::after { width: 8px; height: 50px; left: 39px; top: 8px; border-bottom: 0; }
.industry-card h3 { margin: 0 0 13px; font-size: 20px; }
.industry-card p { margin: 0; color: rgba(255,255,255,.55); font-size: 12px; }

.services { background: var(--ice); }
.process-list { counter-reset: process; display: grid; grid-template-columns: repeat(5, 1fr); padding: 0; margin: 0; list-style: none; }
.process-list li { min-height: 230px; padding: 0 26px; border-left: 1px solid rgba(0,167,200,.27); position: relative; }
.process-list li::before { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; left: -5px; top: 52px; background: var(--cyan); box-shadow: 0 0 0 7px rgba(0,167,200,.12); }
.process-list > li > span { font-size: 50px; color: rgba(6,45,67,.1); font-weight: 800; line-height: 1; }
.process-list h3 { margin: 45px 0 12px; font-size: 19px; }
.process-list p { margin: 0; color: var(--muted); font-size: 13px; }

.about { overflow: hidden; }
.about-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 86px; align-items: center; }
.about-visual { min-height: 570px; position: relative; }
.about-visual::before { content: ""; position: absolute; width: 75%; height: 85%; left: -50px; bottom: -45px; background: var(--ice); z-index: -1; }
.about-photo { margin: 0; position: absolute; overflow: hidden; background: #dfeaec; box-shadow: 0 22px 50px rgba(4,37,53,.13); }
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-photo figcaption { position: absolute; left: 0; bottom: 0; padding: 9px 14px; background: rgba(3,29,44,.82); color: white; font-size: 10px; letter-spacing: .06em; }
.about-photo-main { left: 0; top: 0; width: 100%; height: 360px; }
.about-photo-main img { object-position: left center; }
.about-photo-secondary { right: -22px; bottom: 0; width: 62%; height: 255px; border: 7px solid white; }
.about-photo-secondary img { object-fit: contain; object-position: center; }
.about-badge { position: absolute; left: 26px; bottom: 20px; z-index: 3; width: 200px; padding: 25px; background: var(--orange); color: var(--navy-950); display: flex; flex-direction: column; }
.about-badge b { font-size: 19px; }
.about-badge span { font-size: 11px; margin-top: 4px; }
.about-copy h2 { margin: 0 0 24px; color: var(--navy-900); font-size: clamp(34px, 3.4vw, 47px); line-height: 1.34; letter-spacing: -.04em; }
.about-copy > p:not(.eyebrow) { color: var(--muted); font-size: 14px; }
.about-copy .about-lead { color: var(--ink) !important; font-size: 16px !important; }
.about-values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 32px 0 30px; border-block: 1px solid var(--line); }
.about-values div { padding: 18px 10px 18px 0; display: flex; flex-direction: column; }
.about-values strong { color: var(--navy-900); font-size: 18px; }
.about-values span { color: var(--muted); font-size: 10px; }
.about-links { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; }
.text-link-muted { color: var(--muted); border-bottom-color: var(--line); }

.credentials { position: relative; overflow: hidden; background: linear-gradient(145deg, #f2f8f9 0%, #fff 48%, #f5f8f9 100%); }
.credentials::before { content: ""; position: absolute; width: 560px; height: 560px; right: -300px; top: -320px; border: 1px solid rgba(0,167,200,.12); border-radius: 50%; box-shadow: 0 0 0 85px rgba(0,167,200,.025), 0 0 0 170px rgba(0,167,200,.018); }
.credentials .container { position: relative; z-index: 1; }
.credential-stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: -8px 0 46px; background: var(--navy-900); color: white; box-shadow: 0 24px 60px rgba(4,37,53,.12); }
.credential-stats div { min-height: 104px; padding: 25px 30px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid rgba(255,255,255,.14); }
.credential-stats div:last-child { border-right: 0; }
.credential-stats strong { font-size: 18px; line-height: 1.35; }
.credential-stats span { margin-top: 6px; color: rgba(255,255,255,.6); font-size: 11px; }
.qualification-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.qualification-card, .credential-card { background: white; border: 1px solid var(--line); transition: transform .25s, border-color .25s, box-shadow .25s; }
.qualification-card:hover, .credential-card:hover { transform: translateY(-5px); border-color: rgba(0,167,200,.5); box-shadow: 0 22px 55px rgba(4,37,53,.11); }
.credential-trigger { width: 100%; padding: 0; border: 0; background: transparent; color: inherit; text-align: left; cursor: zoom-in; }
.qualification-card .credential-trigger { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 290px; }
.credential-image { position: relative; display: block; height: 350px; overflow: hidden; background: #eef3f4; }
.credential-image::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.65); pointer-events: none; }
.credential-image img { width: 100%; height: 100%; padding: 14px; object-fit: contain; object-position: center; transition: transform .35s; }
.credential-image-landscape { height: 100%; min-height: 290px; }
.credential-image-landscape img { padding: 20px; }
.credential-trigger:hover .credential-image img { transform: scale(1.018); }
.credential-copy { display: flex; flex-direction: column; padding: 24px; }
.qualification-card .credential-copy { justify-content: center; padding: 35px; }
.credential-copy small { color: var(--cyan); font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.credential-copy strong { margin-top: 10px; color: var(--navy-900); font-size: 18px; line-height: 1.45; }
.qualification-card .credential-copy strong { font-size: 24px; }
.credential-meta { margin-top: 11px; color: var(--muted); font-size: 10px; line-height: 1.7; }
.credential-action { margin-top: auto; padding-top: 19px; color: var(--navy-900); border-top: 1px solid var(--line); font-size: 11px; font-weight: 800; }
.qualification-card .credential-action { margin-top: 28px; }
.patent-heading { margin: 64px 0 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; }
.patent-heading h3 { margin: 0; color: var(--navy-900); font-size: clamp(28px, 3vw, 38px); line-height: 1.3; }
.patent-heading > p { margin: 0; color: var(--muted); font-size: 13px; }
.patent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.credential-card[hidden] { display: none; }
.credential-card .credential-copy { min-height: 170px; }
.credentials-footer { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 34px; }
.credentials-footer p { max-width: 610px; margin: 0; color: #7d8c94; font-size: 10px; text-align: right; }
.credentials-more span { min-width: 12px; }

.credential-dialog { width: min(1120px, calc(100vw - 48px)); max-height: calc(100vh - 40px); padding: 0; border: 0; background: var(--navy-950); color: white; box-shadow: 0 40px 110px rgba(0,0,0,.46); overflow: auto; }
.credential-dialog[open] { display: grid; grid-template-rows: minmax(0, 1fr) auto; animation: dialog-in .25s ease-out; }
.credential-dialog::backdrop { background: rgba(2,18,26,.86); backdrop-filter: blur(6px); }
.credential-dialog .dialog-close { right: 10px; top: 10px; }
.credential-dialog-media { min-height: 0; padding: 28px 28px 0; display: grid; place-items: center; }
.credential-dialog-media img { max-width: 100%; width: auto; max-height: calc(100vh - 180px); object-fit: contain; background: white; }
.credential-dialog-caption { padding: 20px 28px 24px; display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.credential-dialog-caption h2 { margin: 4px 0 0; font-size: 20px; line-height: 1.4; }
.credential-dialog-caption > p { margin: 0; color: rgba(255,255,255,.6); font-size: 11px; text-align: right; }

.contact { background: linear-gradient(120deg, var(--navy-950), var(--navy-800)); color: white; padding: 105px 0; position: relative; overflow: hidden; }
.contact::after { content: ""; position: absolute; width: 620px; height: 620px; border: 1px solid rgba(109,226,238,.13); border-radius: 50%; left: -280px; bottom: -410px; box-shadow: 0 0 0 80px rgba(109,226,238,.025), 0 0 0 160px rgba(109,226,238,.018); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 95px; position: relative; z-index: 1; }
.contact-copy h2 { margin: 0 0 18px; font-size: clamp(35px, 3.45vw, 48px); line-height: 1.25; white-space: nowrap; }
.contact-copy > p:not(.eyebrow) { color: rgba(255,255,255,.63); }
.contact-lines { margin-top: 42px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px 28px; }
.contact-lines > a, .contact-lines > div { min-height: 76px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.16); display: flex; flex-direction: column; justify-content: flex-start; }
.contact-lines small { color: var(--cyan-light); font-size: 10px; letter-spacing: .1em; }
.contact-lines strong { margin-top: 2px; font-size: 15px; }
.contact-address { margin-top: 28px; padding: 18px; border: 1px solid rgba(255,255,255,.15); display: grid; grid-template-columns: 86px 1fr; gap: 19px; align-items: center; }
.contact-address img { width: 86px; height: 86px; object-fit: cover; background: white; }
.contact-address div { display: flex; flex-direction: column; }
.contact-address small { color: var(--cyan-light); font-size: 10px; letter-spacing: .1em; }
.contact-address strong { margin-top: 4px; font-size: 13px; line-height: 1.7; }
.contact-address span { margin-top: 6px; color: rgba(255,255,255,.48); font-size: 10px; }
.contact-address .contact-location { color: rgba(255,255,255,.76); line-height: 1.65; }
.contact-address .map-link { width: fit-content; margin-top: 9px; padding-bottom: 2px; color: var(--cyan-light); border-bottom: 1px solid rgba(109,226,238,.38); font-size: 11px; font-weight: 700; }
.contact-address .map-link:hover { color: white; border-color: white; }
.contact-card { background: white; color: var(--ink); padding: 38px; box-shadow: 0 35px 75px rgba(0,0,0,.2); }
.contact-card form { display: grid; gap: 18px; }
.form-intro { display: grid; gap: 4px; margin-bottom: 4px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.form-intro strong { color: var(--navy-900); font-size: 17px; }
.form-intro span { color: var(--muted); font-size: 12px; }
.field-status { display: inline; margin-left: 5px; color: var(--orange); font-size: 9px; font-weight: 800; }
.field-status.optional { color: #8a9aa2; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-card label { display: grid; gap: 7px; color: var(--navy-900); font-size: 12px; font-weight: 700; }
.contact-card input, .contact-card select, .contact-card textarea { width: 100%; border: 0; border-bottom: 1px solid #cbd5da; border-radius: 0; padding: 10px 1px; color: var(--ink); background: transparent; outline: none; resize: vertical; }
.contact-card input:focus, .contact-card select:focus, .contact-card textarea:focus { border-color: var(--cyan); box-shadow: 0 1px 0 var(--cyan); }
.contact-card input::placeholder, .contact-card textarea::placeholder { color: #98a8b0; }
.contact-card .message-field { gap: 9px; }
.field-example { display: block; margin-top: 2px; padding: 10px 12px; border-left: 3px solid #8fd8e5; background: #f1f7f8; color: #6f838c; font-size: 11px; font-weight: 500; line-height: 1.55; }
.contact-card .message-field textarea { min-height: 112px; padding: 13px 14px; border: 1px solid #cbd5da; background: #fbfcfd; line-height: 1.65; }
.contact-card .message-field textarea:focus { border-color: var(--cyan); background: #fff; box-shadow: 0 0 0 3px rgba(0,167,200,.12); }
.form-submit { width: 100%; margin-top: 2px; }
.form-note { margin: -9px 0 0; text-align: center; font-size: 10px; color: #8a9aa2; }
.form-honeypot { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.contact-card .form-consent { display: flex; grid-template-columns: none; align-items: flex-start; gap: 9px; color: var(--muted); font-size: 11px; font-weight: 500; line-height: 1.65; }
.contact-card .form-consent input { width: 16px; height: 16px; flex: 0 0 auto; margin-top: 1px; padding: 0; accent-color: var(--cyan); box-shadow: none; }
.form-consent a { color: var(--cyan); text-decoration: underline; text-underline-offset: 2px; }
.form-submit[disabled] { cursor: wait; opacity: .68; transform: none; }
.form-note.is-error { color: #b42318; }
.form-note.is-success { color: #087a62; }

.site-footer { background: #021720; color: rgba(255,255,255,.6); padding: 70px 0 24px; }
.compact-footer { padding-top: 10px; }
.compact-footer .footer-bottom { margin-top: 0; }
.footer-main { display: grid; grid-template-columns: 1.55fr .9fr .7fr 1.25fr .5fr; gap: 42px; }
.brand-footer .brand-copy strong { color: white; }
.brand-footer .brand-logo { background: white; }
.footer-main > div:first-child > p { font-size: 12px; margin-top: 20px; }
.footer-main h3 { color: white; margin: 0 0 17px; font-size: 14px; }
.footer-main > div:not(:first-child):not(.footer-qr) { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; font-size: 12px; }
.footer-main a:hover { color: var(--cyan-light); }
.footer-contact p { margin: 0; }
.footer-qr { text-align: center; font-size: 10px; }
.footer-qr img { width: 96px; height: 96px; object-fit: contain; margin: 0 auto 7px; background: white; }
.footer-bottom { display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.09); margin-top: 55px; padding-top: 20px; font-size: 10px; }
.footer-bottom p { margin: 0; }

.floating-actions { position: fixed; right: 20px; bottom: 24px; z-index: 90; display: grid; gap: 8px; }
.floating-actions > a, .floating-actions > button { width: 48px; height: 48px; border: 0; background: var(--cyan); color: white; display: grid; place-items: center; box-shadow: 0 10px 30px rgba(0,0,0,.16); font-size: 17px; position: relative; cursor: pointer; }
.floating-actions > a:nth-of-type(2) { background: var(--orange); color: var(--navy-950); }
.floating-actions .floating-label { position: absolute; right: 58px; top: 8px; white-space: nowrap; padding: 6px 10px; background: var(--navy-950); color: white; font-size: 11px; opacity: 0; transform: translateX(5px); pointer-events: none; transition: .2s; }
.floating-actions > a:hover .floating-label, .floating-actions > button:hover .floating-label, .floating-actions > button:focus-visible .floating-label { opacity: 1; transform: none; }
.wechat-quick { font-weight: 800; }
.wechat-popover { position: absolute; right: 58px; bottom: 0; width: 174px; padding: 13px; background: white; color: var(--navy-900); box-shadow: 0 22px 60px rgba(0,0,0,.25); opacity: 0; visibility: hidden; transform: translateX(8px); transition: .2s; pointer-events: none; }
.wechat-popover img { width: 148px; height: 148px; object-fit: contain; }
.wechat-popover b, .wechat-popover small { display: block; margin-top: 5px; line-height: 1.4; }
.wechat-popover small { color: var(--muted); font-size: 10px; }
.wechat-quick:hover .wechat-popover, .wechat-quick:focus .wechat-popover { opacity: 1; visibility: visible; transform: none; }
#back-to-top { background: var(--navy-900); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s; }
#back-to-top.visible { opacity: 1; visibility: visible; transform: none; }

.product-dialog { width: min(900px, calc(100vw - 40px)); max-height: min(680px, calc(100vh - 40px)); padding: 0; border: 0; color: var(--ink); box-shadow: 0 40px 100px rgba(0,0,0,.35); grid-template-columns: .95fr 1.05fr; overflow: visible; }
.product-dialog[open] { display: grid; animation: dialog-in .25s ease-out; }
.product-dialog::backdrop { background: rgba(2,23,32,.78); backdrop-filter: blur(5px); }
@keyframes dialog-in { from { opacity: 0; transform: translateY(16px) scale(.98); } }
.dialog-close { position: absolute; right: -14px; top: -14px; z-index: 2; width: 36px; height: 36px; border: 0; border-radius: 50%; background: var(--orange); font-size: 24px; cursor: pointer; }
.dialog-media { min-height: 490px; background: #edf3f4; display: grid; place-items: center; }
.dialog-media img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.dialog-copy { padding: 55px 48px; align-self: center; }
.dialog-copy h2 { font-size: 34px; line-height: 1.3; margin: 0 0 18px; color: var(--navy-900); }
.dialog-summary { color: var(--muted); font-size: 14px; }
.dialog-points { display: grid; gap: 9px; margin: 26px 0 32px; }
.dialog-points span { font-size: 13px; padding: 8px 12px; background: var(--ice); border-left: 2px solid var(--cyan); }
.toast { position: fixed; left: 50%; bottom: 28px; z-index: 500; transform: translate(-50%, 20px); background: var(--navy-950); color: white; padding: 12px 20px; opacity: 0; pointer-events: none; transition: .25s; box-shadow: var(--shadow); font-size: 13px; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.utility-header { top: 0; }
.legal-page { min-height: calc(100vh - 170px); padding: 90px 0 110px; background: linear-gradient(180deg, var(--ice), white 44%); }
.legal-shell { max-width: 1100px; }
.legal-shell h1 { max-width: 820px; margin: 0; color: var(--navy-900); font-size: clamp(42px, 6vw, 72px); line-height: 1.12; letter-spacing: -.04em; }
.legal-lead { max-width: 760px; margin: 24px 0 52px; color: var(--muted); font-size: 17px; }
.legal-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.legal-grid section { min-height: 230px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.legal-grid section > span { color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.legal-grid h2 { margin: 22px 0 10px; color: var(--navy-900); font-size: 22px; }
.legal-grid p { margin: 0; color: var(--muted); }
.legal-contact { display: flex; flex-wrap: wrap; gap: 18px 28px; margin: 32px 0; color: var(--muted); }
.legal-contact strong { color: var(--navy-900); }
.legal-contact a { color: var(--cyan); }
.error-page { min-height: 100vh; display: grid; place-items: center; color: white; background: radial-gradient(circle at 70% 20%, rgba(0,167,200,.24), transparent 28%), var(--navy-950); }
.error-shell { width: min(760px, calc(100vw - 48px)); padding: 60px 0; }
.error-page .brand-copy strong { color: white; }
.error-page .brand-copy small { color: rgba(255,255,255,.55); }
.error-code { margin: 80px 0 4px; color: var(--cyan-light); font-size: 13px; font-weight: 800; letter-spacing: .28em; }
.error-shell h1 { margin: 0; font-size: clamp(48px, 8vw, 86px); line-height: 1.1; }
.error-shell > p:not(.error-code) { margin: 22px 0 34px; color: rgba(255,255,255,.7); font-size: 17px; }

.reveal { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.solution-card:nth-child(2), .industry-card:nth-child(2), .process-list li:nth-child(2) { transition-delay: .08s; }
.solution-card:nth-child(3), .industry-card:nth-child(3), .process-list li:nth-child(3) { transition-delay: .16s; }
.industry-card:nth-child(4), .process-list li:nth-child(4) { transition-delay: .24s; }
.industry-card:nth-child(5), .process-list li:nth-child(5) { transition-delay: .32s; }

@media (max-width: 1040px) {
  :root { --container: min(100% - 36px, 960px); }
  .site-nav { gap: 20px; font-size: 13px; }
  .hero { height: 700px; min-height: auto; }
  .solution-card { padding-inline: 25px; }
  .industry-grid { grid-template-columns: repeat(3, 1fr); }
  .industry-card:nth-child(3) { border-right: 0; }
  .industry-card:nth-child(-n+3) { border-bottom: 1px solid rgba(255,255,255,.12); }
  .process-list { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .about-grid { gap: 52px; }
  .about-visual { min-height: 540px; height: 540px; }
  .patent-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { gap: 50px; }
  .footer-main { grid-template-columns: 1.3fr 1fr 1fr 1.2fr; }
  .footer-qr { display: none; }
}

@media (min-width: 1440px) {
  .hero-content { width: min(1680px, calc(100vw - 120px)); padding-top: clamp(88px, 11vh, 132px); padding-bottom: 46px; align-self: stretch; }
  .hero h1 { max-width: 900px; font-size: clamp(72px, 4.5vw, 94px); }
  .hero-lead { max-width: 760px; font-size: 18px; }
  .hero-trust { gap: 58px; margin-top: 52px; }
  .hero-trust b { font-size: 35px; }
}

/* 兼容 4K 显示器及浏览器缩小到 60%–75% 时形成的超宽 CSS 视口 */
@media (min-width: 2200px) {
  :root { --container: min(1900px, calc(100vw - 220px)); }
  .topbar-inner { height: 42px; }
  .site-header { height: 94px; }
  .brand-logo { width: 54px; height: 54px; }
  .brand-copy strong { font-size: 23px; }
  .brand-copy small { font-size: 11px; }
  .site-nav { gap: 40px; font-size: 17px; }
  .site-nav > a, .nav-dropdown > a { padding-top: 34px; padding-bottom: 32px; }
  .site-nav .nav-cta { padding: 13px 24px; }
  .hero-content { width: calc(100vw - 280px); max-width: none; padding-top: clamp(145px, 12vh, 210px); }
  .hero h1 { max-width: 1180px; font-size: clamp(112px, 4.5vw, 150px); }
  .hero .eyebrow { font-size: 15px; }
  .hero-lead { max-width: 980px; margin-top: 34px; font-size: 23px; line-height: 1.9; }
  .hero-actions { gap: 18px; }
  .hero .btn { min-height: 64px; padding-inline: 32px; font-size: 17px; }
  .hero-trust { gap: 74px; margin-top: 72px; }
  .hero-trust b { font-size: 46px; }
  .hero-trust span { font-size: 15px; }
  .hero-note { font-size: 12px; }
}

@media (max-width: 820px) {
  .contact-copy h2 { white-space: normal; }
  .topbar { display: none; }
  .site-header { height: 68px; }
  .mobile-header-actions { display: flex; gap: 4px; }
  .mobile-header-actions .menu-toggle { display: block; z-index: 3; }
  .mobile-header-actions .mobile-language-switcher { display: flex; align-self: center; margin: 0; }
  .mobile-header-actions .language-current { min-width: 72px; width: auto; padding: 8px 9px; border-color: rgba(0,174,208,.3); background: var(--ice); color: var(--navy-900); }
  .mobile-header-actions .language-menu { position: absolute; display: block; top: calc(100% + 10px); right: 0; width: 132px; margin: 0; padding: 7px; border-top: 2px solid var(--cyan); background: white; box-shadow: 0 18px 42px rgba(3,29,44,.16); opacity: 0; visibility: hidden; transform: translateY(8px); }
  .mobile-header-actions .language-switcher.open .language-menu, .mobile-header-actions .language-switcher:focus-within .language-menu { opacity: 1; visibility: visible; transform: none; }
  .mobile-header-actions .language-menu a { color: var(--navy-900); text-align: left; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 68px 0 0; background: var(--navy-950); color: white; padding: 40px 28px; flex-direction: column; align-items: stretch; gap: 0; transform: translateX(100%); transition: transform .3s; }
  .site-nav.open { transform: none; }
  .site-nav > a { padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 17px; }
  .site-nav > a::after { display: none; }
  .site-nav .nav-cta { margin-top: 24px; text-align: center; border: 0; background: var(--orange); color: var(--navy-950); }
  .site-nav > .language-switcher { display: block; align-self: auto; margin-top: 18px; }
  .site-nav > .language-switcher .language-current { width: 100%; padding: 13px 15px; border-color: rgba(255,255,255,.2); background: rgba(255,255,255,.06); color: white; text-align: left; }
  .site-nav > .language-switcher .language-label { color: white; }
  .site-nav > .language-switcher .language-menu { position: static; display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; margin-top: 6px; padding: 0; border: 0; background: transparent; box-shadow: none; opacity: 1; visibility: visible; transform: none; }
  .site-nav > .language-switcher .language-menu a { color: rgba(255,255,255,.7); text-align: center; }
  .site-nav > .language-switcher .language-menu a.active { background: rgba(109,226,238,.12); color: var(--cyan-light); }
  .nav-dropdown { display: block; align-self: auto; border-bottom: 1px solid rgba(255,255,255,.1); }
  .nav-dropdown > a { padding: 17px 0; font-size: 17px; }
  .nav-dropdown > a::after { display: none; }
  .nav-dropdown-panel { position: static; width: auto; padding: 0 0 12px 14px; background: transparent; border: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; }
  .nav-dropdown-panel a { padding: 8px 0; }
  .nav-dropdown-panel strong { color: white; font-size: 13px; }
  .nav-dropdown-panel small { color: rgba(255,255,255,.5); }
  .hero { height: 720px; }
  .hero-image { background-position: 62% center; }
  .hero-scrim { background: linear-gradient(90deg, rgba(3,29,44,.96), rgba(3,29,44,.63)), linear-gradient(0deg, rgba(3,29,44,.5), transparent); }
  .hero-content { padding-top: 55px; }
  .hero h1 { font-size: clamp(40px, 10vw, 62px); }
  .hero-lead { max-width: 580px; }
  .scroll-cue { display: none; }
  .intro-strip-inner, .split-heading, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .intro-strip-inner { gap: 16px; padding-block: 34px; }
  .intro-strip-inner > p { padding-left: 0; border: 0; }
  .section { padding: 88px 0; }
  .split-heading { gap: 18px; }
  .solution-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-card { min-height: 455px; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-card:nth-child(2n) { border-right: 0; }
  .industry-card:nth-child(3) { border-right: 1px solid rgba(255,255,255,.12); }
  .industry-card:nth-child(4) { border-bottom: 1px solid rgba(255,255,255,.12); }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .about-visual { width: calc(100% - 25px); }
  .about-photo-main { width: 100%; height: 340px; }
  .about-photo-secondary { right: -25px; }
  .credential-stats { grid-template-columns: 1fr; }
  .credential-stats div { min-height: 80px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .credential-stats div:last-child { border-bottom: 0; }
  .qualification-grid { grid-template-columns: 1fr; }
  .patent-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { gap: 45px; }
  .footer-main { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; }
  .product-dialog[open] { grid-template-columns: 1fr; overflow-y: auto; }
  .featured-project-grid { grid-template-columns: 1fr; }
  .featured-project-media { min-height: 420px; margin-left: 0; }
  .featured-project-media::after { background: linear-gradient(0deg, #052f45 0%, transparent 35%); }
  .project-proof { left: 24px; }
  .featured-project-copy { padding: 24px 0 60px; }
  .dialog-media { min-height: 250px; max-height: 290px; }
  .dialog-copy { padding: 34px; }
}

@media (max-width: 560px) {
  :root { --container: calc(100% - 32px); }
  body { padding-bottom: 56px; }
  .brand-mark { width: 36px; height: 36px; border-width: 5px; }
  .brand-logo { width: 38px; height: 38px; }
  .brand-mark i { width: 13px; height: 18px; }
  .brand-copy strong { font-size: 16px; }
  .hero { min-height: 690px; height: calc(100svh - 68px); max-height: 780px; align-items: flex-end; }
  .hero-image { background-position: 69% center; }
  .hero-scrim { background: linear-gradient(90deg, rgba(3,29,44,.94), rgba(3,29,44,.55)), linear-gradient(0deg, rgba(3,29,44,.94) 0%, transparent 70%); }
  .hero-content { padding: 64px 0 34px; }
  .hero .eyebrow { font-size: 9px; }
  .hero h1 { font-size: 39px; }
  .hero-lead { font-size: 14px; line-height: 1.8; margin-block: 20px 25px; }
  .hero-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .hero-trust { gap: 15px; margin-top: 35px; justify-content: space-between; }
  .hero-trust b { font-size: 23px; }
  .hero-trust span { font-size: 9px; }
  .hero-note { font-size: 8px; }
  .intro-strip h2 { font-size: 25px; }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2, .about-copy h2 { font-size: 32px; }
  .solution-grid, .product-grid { grid-template-columns: 1fr; }
  .featured-project-media { min-height: 270px; }
  .featured-project-copy { padding-top: 12px; }
  .featured-project-copy h2 { font-size: 32px; }
  .featured-project-actions { align-items: stretch; flex-direction: column; }
  .solution-card { min-height: 430px; }
  .filter-bar { overflow-x: auto; padding-bottom: 1px; }
  .filter-btn { white-space: nowrap; padding-inline: 16px; }
  .product-media { height: 215px; }
  .industry-grid { grid-template-columns: 1fr; }
  .industry-card { min-height: 255px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12) !important; }
  .industry-card:last-child { border-bottom: 0 !important; }
  .line-icon { margin: 35px 0 20px; }
  .process-list { grid-template-columns: 1fr; row-gap: 24px; }
  .process-list li { min-height: 145px; padding-left: 26px; }
  .process-list h3 { margin-top: 24px; }
  .process-list li::before { top: 42px; }
  .about-visual { min-height: 430px; height: 430px; }
  .about-photo-main { width: 100%; height: 270px; }
  .about-photo-secondary { right: -16px; width: 64%; height: 180px; border-width: 5px; }
  .about-badge { width: 162px; left: 12px; bottom: 16px; padding: 17px; }
  .about-links { align-items: flex-start; flex-direction: column; }
  .qualification-card .credential-trigger { grid-template-columns: 1fr; }
  .credential-image-landscape { min-height: 0; height: 235px; }
  .qualification-card .credential-copy { min-height: 210px; padding: 26px 24px; }
  .patent-heading { grid-template-columns: 1fr; gap: 14px; margin-top: 48px; }
  .patent-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .credential-image { height: 250px; }
  .credential-card .credential-copy { min-height: 180px; padding: 18px 15px; }
  .credential-copy strong { font-size: 15px; }
  .credential-meta { font-size: 9px; }
  .credentials-footer { align-items: stretch; flex-direction: column; }
  .credentials-footer p { text-align: left; }
  .contact-address { grid-template-columns: 80px 1fr; padding: 14px; gap: 14px; }
  .contact-address img { width: 80px; height: 80px; }
  .about-values { grid-template-columns: repeat(2, 1fr); }
  .about-values div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .contact { padding: 72px 0; }
  .contact-lines { grid-template-columns: 1fr; gap: 12px; }
  .contact-card { padding: 26px 20px; }
  .field-row { grid-template-columns: 1fr; }
  .legal-page { padding: 62px 0 78px; }
  .legal-grid { grid-template-columns: 1fr; }
  .legal-grid section { min-height: 0; padding: 28px 24px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-main > div:first-child, .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { display: grid; gap: 6px; }
  .floating-actions { left: 10px; right: 10px; bottom: 8px; grid-template-columns: repeat(3, 1fr); gap: 1px; padding: 3px; background: rgba(2,23,32,.94); box-shadow: 0 12px 35px rgba(0,0,0,.28); backdrop-filter: blur(10px); }
  .floating-actions > a, .floating-actions > button { width: auto; height: 44px; box-shadow: none; }
  .floating-actions .floating-label { display: none; }
  .floating-actions #back-to-top { position: fixed; right: 12px; bottom: 70px; width: 43px; box-shadow: 0 10px 30px rgba(0,0,0,.16); }
  .wechat-popover { right: auto; left: 0; bottom: 52px; width: 160px; }
  .wechat-popover img { width: 134px; height: 134px; }
  .product-dialog { width: calc(100vw - 24px); max-height: calc(100vh - 30px); }
  .credential-dialog { width: calc(100vw - 20px); max-height: calc(100vh - 20px); }
  .credential-dialog-media { padding: 48px 10px 0; }
  .credential-dialog-media img { max-height: calc(100vh - 205px); }
  .credential-dialog-caption { align-items: flex-start; flex-direction: column; gap: 8px; padding: 17px 18px 20px; }
  .credential-dialog-caption > p { text-align: left; }
  .dialog-close { right: 8px; top: 8px; }
  .dialog-copy { padding: 28px 22px; }
  .dialog-copy h2 { font-size: 27px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}
.industry-card>a{display:flex;justify-content:space-between;align-items:center;gap:.8rem;margin-top:1.25rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.18);color:#72e1ef;font-size:.86rem;font-weight:750}
.industry-card>a:hover{color:#fff;transform:translateX(.18rem)}
.nav-solutions-panel {
  width: min(680px, calc(100vw - 40px));
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}
.nav-dropdown:hover .nav-solutions-panel,
.nav-dropdown:focus-within .nav-solutions-panel { display: grid; }

@media (max-width: 1024px) {
  .nav-solutions-panel { width: auto; display: grid; grid-template-columns: 1fr; }
}