/* Hallmark · genre: modern-minimal · macrostructure: Long Document · design-system: design.md · designed-as-app */
@import url("../tokens.css?v=20260804-hover");
:root { --ink: #071c19; --ink-soft: #12352f; --forest: #0b5c47; --green: #42c982; --lime: #b5ef6b; --paper: #f4f2ea; --white: #ffffff; --muted: #67716e; --line: rgba(7, 28, 25, .14); --dark-line: rgba(255, 255, 255, .14); --max: 1240px; --shadow: 0 28px 70px rgba(4, 20, 17, .18); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0px; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px; background: var(--lime); color: var(--ink); font-weight: 700; }
.skip-link:focus { top: 16px; }
.section { padding: 120px 28px; }
.section-dark { background: var(--ink); color: var(--white); }
.section-inner { width: min(var(--max), 100%); margin: 0px auto; }
.eyebrow { margin: 0px 0px 22px; color: var(--lime); font-size: 12px; font-weight: 800; letter-spacing: 0.17em; text-transform: uppercase; }
.eyebrow.dark { color: var(--forest); }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; padding: 0px 24px; border: 1px solid transparent; text-decoration: none; font-weight: 800; transition: background 0.2s, border-color 0.2s; }
.button-primary { background: var(--lime); color: var(--ink); }
.button-secondary { color: var(--white); border-color: rgba(255, 255, 255, .58); background: rgba(7, 28, 25, .18); }
.button-secondary:hover { border-color: var(--white); background: rgba(255, 255, 255, .1); }
.button-ghost { border-color: rgba(255, 255, 255, 0.5); color: rgb(255, 255, 255); }
.button-ghost:hover { border-color: rgb(255, 255, 255); background: rgba(255, 255, 255, 0.08); }
.site-header { position: fixed; inset: 0px 0px auto; z-index: 100; color: rgb(255, 255, 255); border-bottom: 1px solid rgba(255, 255, 255, 0.12); transition: background 0.25s, box-shadow 0.25s; }
.site-header.scrolled { background: rgba(7, 28, 25, 0.94); backdrop-filter: blur(16px); box-shadow: rgba(0, 0, 0, 0.18) 0px 8px 32px; }
.header-inner { width: min(1440px, 100%); height: 84px; margin: 0px auto; padding: 0px 28px; position: relative; display: grid; grid-template-columns: 290px 1fr auto; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 13px; text-decoration: none; }
.brand-logo { width: 184px; height: auto; display: block; }
.brand-mark { width: 56px; height: 36px; display: grid; place-items: center; border: 1px solid; color: var(--lime); font: 900 15px / 1 Arial, sans-serif; letter-spacing: 0.12em; }
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy strong { font-size: 18px; letter-spacing: 0.08em; }
.brand-copy small { margin-top: 5px; color: rgba(255, 255, 255, 0.6); font-size: 10px; letter-spacing: 0.06em; }
.site-nav { position: absolute; left: 50%; top: 50%; display: flex; justify-content: center; gap: clamp(var(--space-sm), 2.2vw, 2.375rem); transform: translate(-50%, -50%); }
.site-nav a { position: relative; color: rgba(255, 255, 255, 0.78); font-size: .8125rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.site-nav a::after { content: ""; position: absolute; left: 0px; right: 100%; bottom: -10px; height: 2px; background: var(--lime); transition: right 0.2s; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: rgb(255, 255, 255); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { right: 0px; }
.header-cta { display: grid; text-align: right; text-decoration: none; line-height: 1.2; }
.header-cta span { color: rgba(255, 255, 255, 0.55); font-size: 10px; letter-spacing: 0.1em; }
.header-cta strong { margin-top: 5px; color: var(--lime); font-size: 14px; letter-spacing: 0.04em; }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0px; background: transparent; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0px; background: rgb(255, 255, 255); }
.hero { min-height: 820px; height: 100svh; max-height: 980px; position: relative; display: flex; align-items: center; overflow: hidden; color: rgb(255, 255, 255); background: var(--ink); }
.hero-image, .hero-shade, .hero-grid { position: absolute; inset: 0px; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center 54%; filter: saturate(0.78) contrast(1.06); }
.hero-shade { background: linear-gradient(90deg, rgba(4, 22, 19, 0.96) 0%, rgba(4, 22, 19, 0.76) 47%, rgba(4, 22, 19, 0.2) 78%), linear-gradient(0deg, rgba(4, 22, 19, 0.6), transparent 55%); }
.hero-grid { opacity: 0.22; background-image: linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, rgb(0, 0, 0), transparent 74%); }
.hero-inner { width: min(var(--max), calc(100% - 56px)); margin: 76px auto 0px; position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0px, 1fr) 330px; align-items: end; gap: 80px; }
.hero-copy { max-width: 780px; }
.hero h1 { margin: 0px; font-size: clamp(48px, 5.6vw, 82px); line-height: 1.08; letter-spacing: -0.05em; font-weight: 800; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero-lead { max-width: 680px; margin: 30px 0px 0px; color: rgba(255, 255, 255, 0.76); font-size: 18px; line-height: 1.9; }
.hero-actions { margin-top: 40px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-proof { border-top: 1px solid rgba(255, 255, 255, 0.5); padding-top: 22px; }
.proof-label { margin: 0px 0px 12px; color: var(--lime); font-size: 12px; font-weight: 800; letter-spacing: 0.08em; }
.hero-proof dl { margin: 0px; }
.hero-proof dl div { padding: 15px 0px; display: flex; align-items: baseline; justify-content: space-between; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }
.hero-proof dt { font: 800 34px / 1 Arial, sans-serif; letter-spacing: -0.03em; }
.hero-proof dt small { margin-left: 3px; color: var(--lime); font: 700 13px / 1 "Microsoft YaHei", sans-serif; }
.hero-proof dd { margin: 0px; color: rgba(255, 255, 255, 0.65); font-size: 12px; }
.proof-note { margin: 18px 0px 0px; color: rgba(255, 255, 255, 0.48); font-size: 11px; line-height: 1.7; }
.scroll-cue { position: absolute; z-index: 3; left: max(28px, calc((100% - var(--max))/2)); bottom: 30px; display: flex; align-items: center; gap: 14px; color: rgba(255, 255, 255, 0.62); font-size: 11px; letter-spacing: 0.14em; text-decoration: none; }
.scroll-cue i { width: 46px; height: 1px; position: relative; overflow: hidden; background: rgba(255, 255, 255, 0.28); }
.scroll-cue i::after { content: ""; position: absolute; inset: 0px; background: var(--lime); animation: 2s ease-in-out 0s infinite normal none running scan; }
@keyframes scan { 
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.trust-strip { background: var(--lime); color: var(--ink); }
.trust-inner { width: min(1440px, 100%); margin: 0px auto; min-height: 112px; display: grid; grid-template-columns: 250px 1fr; align-items: stretch; }
.trust-intro { padding: 0px 28px; display: flex; align-items: center; border-right: 1px solid rgba(7, 28, 25, 0.22); font-size: 13px; font-weight: 900; letter-spacing: 0.08em; }
.trust-inner ul { margin: 0px; padding: 0px; display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; }
.trust-inner li { padding: 24px 22px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid rgba(7, 28, 25, 0.18); }
.trust-inner li:last-child { border-right: 0px; }
.trust-inner strong { font: 900 18px / 1.1 Arial, sans-serif; letter-spacing: 0.03em; }
.trust-inner span { margin-top: 8px; font-size: 11px; opacity: 0.68; }
.section-heading h2, .evidence-copy h2, .about-copy h2, .faq-intro h2, .global-content h2, .contact h2 { margin: 0px; font-size: clamp(38px, 4vw, 62px); line-height: 1.16; letter-spacing: -0.045em; }
.section-heading { margin-bottom: 56px; display: grid; grid-template-columns: minmax(0px, 1.15fr) minmax(320px, 0.85fr); gap: 70px; align-items: end; }
.section-heading > p { margin: 0px 0px 6px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.section-heading.light > p { color: rgba(255, 255, 255, 0.58); }
.applications { padding: 120px 28px; }
.application-grid { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: 280px; gap: 16px; }
.application-card { grid-column: span 4; margin: 0px; position: relative; overflow: hidden; background: var(--ink-soft); }
.application-card.large { grid-area: span 2 / span 8; }
.application-card img { width: 100%; height: 100%; object-fit: cover; }
.application-card::after { content: ""; position: absolute; inset: 0px; background: linear-gradient(0deg, rgba(4, 20, 17, 0.92), transparent 65%); }
.application-card div { position: absolute; z-index: 2; left: 26px; right: 26px; bottom: 24px; }
.application-card span { color: var(--lime); font-size: 10px; font-weight: 900; letter-spacing: 0.1em; }
.application-card h3 { margin: 8px 0px 0px; font-size: 20px; line-height: 1.35; }
.application-card p { margin: 10px 0px 0px; color: rgba(255, 255, 255, 0.62); font-size: 12px; }
.evidence-layout { display: grid; grid-template-columns: minmax(0px, 1fr) minmax(420px, 0.75fr); gap: 80px; align-items: center; }
.evidence-copy > p:nth-of-type(2) { max-width: 720px; margin: 30px 0px 0px; color: var(--muted); font-size: 15px; line-height: 2; }
.credential-list { margin-top: 40px; border-top: 1px solid var(--line); }
.credential-list article { padding: 20px 0px; display: grid; grid-template-columns: 130px 1fr; gap: 20px; border-bottom: 1px solid var(--line); }
.credential-list strong { color: var(--forest); font: 900 14px / 1.4 Arial, sans-serif; }
.credential-list span { color: var(--muted); font-size: 12px; }
.certificate-stack { min-height: 580px; position: relative; }
.certificate { width: 310px; margin: 0px; position: absolute; padding: 12px 12px 38px; background: rgb(255, 255, 255); box-shadow: var(--shadow); }
.certificate img { width: 100%; height: auto; }
.certificate figcaption { position: absolute; left: 14px; bottom: 11px; color: var(--muted); font: 800 9px / 1 Arial, sans-serif; letter-spacing: 0.08em; }
.certificate.main { left: 0px; top: 0px; transform: rotate(-3deg); }
.certificate.secondary { right: 0px; bottom: 0px; transform: rotate(4deg); }
.patent-catalog { margin-top: 100px; padding-top: 48px; border-top: 1px solid var(--line); }
.catalog-head { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; }
.catalog-head h3 { margin: 0px; font-size: 28px; }
.catalog-head p { margin: 0px; color: var(--muted); font-size: 12px; }
.patent-catalog ol { margin: 28px 0px 0px; padding: 0px; display: grid; grid-template-columns: 1fr 1fr 1fr; border-top: 1px solid var(--line); list-style-position: inside; }
.patent-catalog li { min-height: 86px; padding: 20px 22px 20px 0px; border-bottom: 1px solid var(--line); color: rgb(47, 61, 57); font-size: 12px; }
.patent-catalog li span { display: block; margin: 0px 0px 8px 24px; color: var(--forest); font-size: 9px; font-weight: 900; letter-spacing: 0.08em; }
.global-delivery { min-height: 680px; padding: 100px 28px; position: relative; display: flex; align-items: center; color: rgb(255, 255, 255); overflow: hidden; }
.global-delivery > img, .global-overlay { position: absolute; inset: 0px; width: 100%; height: 100%; }
.global-delivery > img { object-fit: cover; }
.global-overlay { background: linear-gradient(90deg, rgba(4, 20, 17, 0.94), rgba(4, 20, 17, 0.68) 50%, rgba(4, 20, 17, 0.18)); }
.global-content { width: min(var(--max), 100%); margin: 0px auto; position: relative; z-index: 2; }
.global-content h2 { max-width: 820px; }
.global-content > p:nth-of-type(2) { max-width: 650px; margin: 28px 0px 36px; color: rgba(255, 255, 255, 0.7); font-size: 15px; line-height: 1.9; }
.about-layout { display: grid; grid-template-columns: minmax(380px, 0.82fr) minmax(0px, 1.18fr); gap: 90px; align-items: center; }
.about-visual { position: relative; }
.about-visual img { width: 100%; min-height: 620px; object-fit: cover; box-shadow: var(--shadow); }
.about-visual > span { position: absolute; right: -28px; bottom: 34px; padding: 14px 20px; background: var(--lime); font: 900 14px / 1 Arial, sans-serif; letter-spacing: 0.08em; }
.about-copy > p:nth-of-type(2) { max-width: 720px; margin: 28px 0px 0px; color: var(--muted); font-size: 15px; line-height: 2; }
.timeline-mini { margin-top: 40px; border-top: 1px solid var(--line); }
.timeline-mini > div { padding: 17px 0px; display: grid; grid-template-columns: 88px 1fr; border-bottom: 1px solid var(--line); }
.timeline-mini time { color: var(--forest); font: 900 18px / 1.6 Arial, sans-serif; }
.timeline-mini p { margin: 0px; display: flex; justify-content: space-between; gap: 20px; }
.timeline-mini strong { font-size: 14px; }
.timeline-mini span { color: var(--muted); font-size: 11px; }
.faq { background: rgb(233, 231, 223); }
.faq-layout { display: grid; grid-template-columns: minmax(320px, 0.7fr) minmax(0px, 1.3fr); gap: 100px; }
.faq-intro > p:last-child { max-width: 430px; color: var(--muted); font-size: 13px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 24px 44px 24px 0px; position: relative; cursor: pointer; font-size: 15px; font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 21px; color: var(--forest); font: 500 25px / 1 Arial, sans-serif; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -5px 0px 24px; padding-right: 50px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.contact { padding: 100px 28px; color: rgb(255, 255, 255); background: var(--forest); }
.contact-inner { width: min(var(--max), 100%); margin: 0px auto; display: grid; grid-template-columns: minmax(0px, 1.1fr) minmax(420px, 0.9fr); gap: 80px; align-items: end; }
.contact-actions { border-top: 1px solid rgba(255, 255, 255, 0.28); }
.contact-actions a { padding: 18px 0px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.28); text-decoration: none; }
.contact-actions span { color: rgba(255, 255, 255, 0.58); font-size: 11px; }
.contact-actions strong { font: 800 17px / 1.2 Arial, "Microsoft YaHei", sans-serif; }
.contact-actions a:hover strong { color: var(--lime); }
.site-footer { padding: 56px 28px 26px; color: rgb(255, 255, 255); background: var(--ink); }
.footer-main, .footer-bottom { width: min(var(--max), 100%); margin: 0px auto; }
.footer-main { display: grid; grid-template-columns: minmax(280px, 0.8fr) minmax(260px, 0.7fr) minmax(0px, 1fr); gap: 50px; align-items: center; }
.footer-brand .brand-copy strong { font-size: 14px; }
.site-footer address { color: rgba(255, 255, 255, 0.5); font-size: 12px; font-style: normal; }
.site-footer nav { display: flex; justify-content: flex-end; gap: 24px; flex-wrap: wrap; }
.site-footer nav a { color: rgba(255, 255, 255, 0.58); font-size: 11px; text-decoration: none; }
.site-footer nav a:hover { color: var(--lime); }
.footer-bottom { margin-top: 46px; padding-top: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; row-gap: 10px; color: rgba(255, 255, 255, 0.35); border-top: 1px solid rgba(255, 255, 255, 0.1); font-size: 10px; }
.footer-bottom .icp-link { width: 100%; color: inherit; text-align: center; text-decoration: none; }
.footer-bottom .icp-link:hover { color: var(--lime); }
.mobile-call { display: none; }
@media (max-width: 1100px) {
  .header-inner { grid-template-columns: 260px 1fr auto; }
  .site-nav { gap: clamp(var(--space-sm), 2.2vw, 2.375rem); }
  .hero-inner { grid-template-columns: 1fr 242px; gap: 38px; }
  .evidence-layout { grid-template-columns: 1fr; }
  .certificate-stack { width: min(650px, 100%); margin: 0px auto; }
  .patent-catalog ol { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .section { padding: 84px 20px; }
  .header-inner { height: 68px; padding: 0px 20px; display: flex; justify-content: space-between; }
  .brand-mark { width: 48px; height: 32px; }
  .brand-logo { width: 148px; }
  .brand-copy strong { font-size: 16px; }
  .brand-copy small { display: none; }
  .menu-toggle { display: block; order: 3; }
  .site-nav { position: absolute; left: 0px; right: 0px; top: 68px; padding: var(--space-sm) var(--space-lg) var(--space-lg); display: grid; gap: 0px; background: rgba(7, 28, 25, 0.98); transform: translateY(-130%); opacity: 0; pointer-events: none; transition: transform 0.25s, opacity 0.25s; }
  .site-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .site-nav a { padding: var(--space-sm) 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .site-nav a::after { display: none; }
  .header-cta { display: none; }
  .hero { min-height: 780px; height: auto; max-height: none; padding: 120px 0px 90px; }
  .hero-shade { background: linear-gradient(0deg, rgba(4, 22, 19, 0.97), rgba(4, 22, 19, 0.52)); }
  .hero-inner { width: calc(100% - 40px); margin-top: 0px; grid-template-columns: 1fr; gap: 54px; }
  .hero h1 { font-size: clamp(41px, 11vw, 62px); }
  .hero-lead { font-size: 15px; }
  .hero-proof { max-width: 440px; }
  .scroll-cue { display: none; }
  .trust-inner { grid-template-columns: 1fr; }
  .trust-intro { min-height: 60px; border-right: 0px; border-bottom: 1px solid rgba(7, 28, 25, 0.2); }
  .trust-inner ul { grid-template-columns: 1fr 1fr; }
  .trust-inner li { min-height: 92px; border-bottom: 1px solid rgba(7, 28, 25, 0.18); }
  .section-heading { grid-template-columns: 1fr; gap: 22px; }
  .applications { padding: 84px 20px; }
  .application-grid { grid-auto-rows: 300px; }
  .application-card, .application-card.large { grid-area: span 1 / span 12; }
  .certificate-stack { min-height: 520px; }
  .certificate { width: 270px; }
  .patent-catalog ol { grid-template-columns: 1fr; }
  .catalog-head { grid-template-columns: 1fr; gap: 12px; }
  .global-delivery { min-height: 620px; padding: 80px 20px; }
  .about-layout, .faq-layout, .contact-inner { grid-template-columns: 1fr; gap: 55px; }
  .about-visual img { min-height: 440px; }
  .about-visual > span { right: 0px; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .site-footer nav { justify-content: flex-start; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
  .mobile-call { position: fixed; z-index: 90; left: 12px; right: 12px; bottom: 12px; min-height: 58px; padding: 0px 20px; display: flex; align-items: center; justify-content: space-between; color: var(--ink); background: var(--lime); box-shadow: rgba(0, 0, 0, 0.22) 0px 12px 36px; text-decoration: none; }
  .mobile-call span { font-size: 12px; font-weight: 800; }
  .mobile-call strong { font: 900 15px / 1 Arial, sans-serif; }
  body { padding-bottom: 80px; }
}
@media (max-width: 520px) {
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .certificate-stack { min-height: 490px; }
  .certificate { width: 230px; }
  .timeline-mini > div { grid-template-columns: 70px 1fr; }
  .timeline-mini p { display: grid; gap: 2px; }
  .contact-actions a { align-items: flex-start; flex-direction: column; gap: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, ::before, ::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* 2026 light corporate refinement */
:root {
  --ink: #123028;
  --ink-soft: #265347;
  --forest: #287050;
  --green: #4d966e;
  --lime: #8ec65b;
  --paper: #f7f8f4;
  --muted: #66746e;
  --line: rgba(18, 48, 40, .13);
  --shadow: 0 22px 55px rgba(38, 70, 59, .12);
}
body { background: #f7f8f4; }
section[id] { scroll-margin-top: 84px; }
.section { padding-top: 104px; padding-bottom: 104px; }
.eyebrow { color: var(--forest); font-size: 12px; letter-spacing: .1em; }
.site-header { color: var(--ink); background: rgba(255,255,255,.94); border-bottom-color: rgba(18,48,40,.1); box-shadow: 0 5px 24px rgba(32,63,52,.06); }
.site-header.scrolled { background: rgba(255,255,255,.97); box-shadow: 0 8px 28px rgba(32,63,52,.1); }
.brand-mark { color: var(--forest); background: #f1f7ee; }
.brand-copy small, .header-cta span { color: #738079; }
.site-nav a { color: #334a42; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--forest); }
.header-cta strong { color: var(--forest); }
.menu-toggle span { background: var(--ink); }
.hero { min-height: 600px; height: min(720px, calc(100svh - 132px)); max-height: 780px; color: var(--ink); background: #e9efea; }
.hero-image { object-position: center 46%; filter: saturate(1.06) contrast(1.05) brightness(1.03); }
.hero-shade { background: linear-gradient(90deg, rgba(247,249,245,.89) 0%, rgba(247,249,245,.50) 21%, rgba(247,249,245,.10) 44%, transparent 62%), linear-gradient(0deg, rgba(247,249,245,.06), transparent 36%); }
.hero-grid { display: none; }
.hero-inner { margin-top: 78px; grid-template-columns: minmax(0, 1fr) 262px; gap: 50px; }
.hero-copy { max-width: 720px; }
.hero h1 { max-width: 640px; font-size: clamp(36px, 3.6vw, 52px); line-height: 1.16; letter-spacing: -.025em; }
.hero h1 em { color: var(--forest); }
.hero-lead { max-width: 620px; margin-top: 22px; color: #40554e; font-size: 14px; line-height: 1.8; }
.hero-lead strong, .hero-lead span { display: block; }
.hero-lead strong { margin-bottom: 6px; color: var(--ink); font-size: 17px; }
.hero-actions { margin-top: 30px; }
.button { border-radius: 2px; }
.button-primary { color: #fff; background: var(--forest); }
.button-primary:hover { background: #1f6044; }
.button-ghost { color: var(--ink); background: rgba(255,255,255,.68); border-color: rgba(18,48,40,.42); }
.button-ghost:hover { color: var(--ink); background: #fff; border-color: var(--forest); }
.hero-proof { padding: 20px 20px; background: rgba(255,255,255,.72); border: 1px solid rgba(18,48,40,.08); box-shadow: none; }
.proof-label { color: var(--forest); }
.hero-proof dl div { padding: 10px 0; border-bottom-color: rgba(18,48,40,.10); }
.hero-proof dt { color: var(--ink); font-size: 26px; }
.hero-proof dt small { color: var(--forest); font-size: 11px; }
.hero-proof dd, .proof-note { color: #63716b; }
.proof-note { margin-top: 14px; }
.scroll-cue { color: #50635b; }
.scroll-cue i { background: rgba(18,48,40,.2); }
.trust-strip { color: var(--ink); background: #e9f2e5; border-top: 1px solid rgba(18,48,40,.1); border-bottom: 1px solid rgba(18,48,40,.1); }
.section-dark { color: var(--ink); background: #edf3ee; }
.section-heading.light .eyebrow { color: var(--forest); }
.section-heading.light > p { color: var(--muted); }
.applications { background: #f2f5f0; }
.applications .section-heading h2 { color: var(--ink); }
.applications .section-heading > p { color: var(--muted); }
.applications .eyebrow { color: var(--forest); }
.global-delivery { min-height: 690px; color: var(--ink); background: #eaf0eb; }
.global-delivery > img { object-position: center 58%; filter: saturate(.96) brightness(1.05); }
.global-overlay { background: linear-gradient(90deg, rgba(249,250,247,.98) 0%, rgba(249,250,247,.92) 36%, rgba(249,250,247,.42) 60%, rgba(249,250,247,.03) 82%); }
.global-content h2 { max-width: 720px; color: var(--ink); }
.global-content > p:nth-of-type(2) { color: #4c5f58; }
.about { padding: 58px 28px 46px; background: #f8faf6; border-bottom: 1px solid rgba(18,48,40,.1); }
.history-layout { display: grid; gap: 26px; }
.history-heading { display: grid; grid-template-columns: minmax(520px, 1.05fr) minmax(360px, .95fr); grid-template-rows: auto 1fr; column-gap: 70px; align-items: end; }
.history-heading .eyebrow { grid-column: 1; margin-bottom: 14px; }
.history-heading h2 { grid-column: 1; margin: 0; font-size: clamp(36px, 3.2vw, 48px); line-height: 1.14; letter-spacing: -.035em; }
.history-heading > p:last-child { grid-column: 2; grid-row: 1 / span 2; max-width: 690px; margin: 0 0 4px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.history-track { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(9, 1fr); list-style: none; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.history-track li { min-height: 108px; position: relative; padding: 24px 14px 20px; border-right: 1px solid var(--line); }
.history-track li:last-child { border-right: 0; }
.history-track li::before { content: ''; position: absolute; left: 14px; top: -5px; width: 9px; height: 9px; border-radius: 50%; background: #b7c5be; }
.history-track time, .history-track strong { display: block; }
.history-track time { color: var(--forest); font: 800 20px/1 Arial, sans-serif; }
.history-track strong { margin-top: 13px; font-size: 12px; }
.history-track .featured { color: #fff; background: var(--forest); }
.history-track .featured::before { background: var(--forest); }
.history-track .featured time { color: #dff0d7; }
.history-note { margin: -15px 0 0; color: var(--forest); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.faq { background: #eef3ee; }
.contact { background: #3b765e; }

/* reveal — 仅在 hero 首屏和十年历程处保留入场动画 */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.js .reveal.visible { opacity: 1; transform: none; }

/* section-label — 替代原 eyebrow 的轻量标签 */
.section-label { margin: 0 0 12px; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .08em; }

/* focus-visible — 所有交互元素的可访问焦点环 */
a:focus-visible,
button:focus-visible,
details summary:focus-visible {
  outline: 2px solid var(--forest);
  outline-offset: 3px;
}
.skip-link:focus-visible { top: 16px; outline-color: var(--ink); }
.menu-toggle:focus-visible { outline-color: var(--forest); }
.product-categories nav a:focus-visible { outline-color: #fff; outline-offset: -2px; }
.product-categories nav a:focus-visible:not(.active) { outline-color: rgba(255,255,255,.7); }

@media (max-width: 1000px) and (min-width: 821px) {
  .history-heading { grid-template-columns: minmax(0, 1fr) minmax(280px, .75fr); column-gap: 32px; }
}

@media (max-width: 820px) {
  section[id] { scroll-margin-top: 68px; }
  .site-nav { background: rgba(255,255,255,.98); box-shadow: 0 16px 30px rgba(18,48,40,.1); }
  .site-nav a { color: var(--ink); border-bottom-color: rgba(18,48,40,.1); }
  .hero { min-height: 620px; height: auto; max-height: none; padding: 108px 0 72px; }
  .hero-shade { background: linear-gradient(0deg, rgba(247,249,245,.92) 0%, rgba(247,249,245,.72) 42%, rgba(247,249,245,.20) 100%); }
  .hero-inner { width: calc(100% - 40px); margin-top: 0; grid-template-columns: 1fr; gap: 32px; }
  .hero-copy, .hero-lead { width: auto; max-width: none; }
  .hero-proof { width: auto; max-width: 480px; }
  .hero h1 { font-size: clamp(32px, 8.5vw, 46px); }
  .global-delivery { min-height: 650px; align-items: flex-end; }
  .global-delivery > img { object-position: 62% center; }
  .global-overlay { background: linear-gradient(0deg, rgba(249,250,247,.98) 0%, rgba(249,250,247,.86) 58%, rgba(249,250,247,.12) 100%); }
  .about { padding: 56px 20px 48px; }
  .history-layout { gap: 26px; }
  .history-heading { grid-template-columns: 1fr; grid-template-rows: auto; gap: 0; }
  .history-heading .eyebrow, .history-heading h2, .history-heading > p:last-child { grid-column: 1; grid-row: auto; }
  .history-heading h2 { font-size: clamp(34px, 8.5vw, 46px); }
  .history-heading > p:last-child { margin-top: 20px; font-size: 13px; }
  .history-track { grid-template-columns: repeat(9, 112px); overflow-x: auto; overscroll-behavior-inline: contain; scroll-snap-type: inline proximity; scrollbar-width: thin; }
  .history-track li { min-height: 104px; border-bottom: 0; scroll-snap-align: start; }
  .history-note { margin-top: -10px; line-height: 1.7; }
}

@media (max-width: 520px) {
  .section { padding-top: 76px; padding-bottom: 76px; }
  .hero { min-height: 580px; padding: 100px 0 60px; }
  .hero h1 { font-size: clamp(28px, 10vw, 38px); }
  .hero-actions { grid-template-columns: 1fr 1fr; gap: 8px; }
  .hero-actions .button { padding: 0 10px; font-size: 12px; min-height: 48px; }
  .hero-proof { padding: 16px; max-width: none; }
  .history-track { grid-template-columns: repeat(9, 106px); }
}

/* Homepage product center */
.product-center { padding: 94px 28px 104px; background: #fff; }
.product-center-heading { margin-bottom: 42px; display: grid; grid-template-columns: minmax(0, 1fr) 430px; gap: 70px; align-items: end; }
.product-center-heading h2 { margin: 0; color: var(--ink); font-size: clamp(38px, 4vw, 60px); line-height: 1.14; letter-spacing: -.04em; }
.product-center-heading > p { margin: 0 0 4px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.product-center-intro { display: grid; justify-items: start; gap: 18px; }
.product-center-intro p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
.product-center-intro .button { min-height: 44px; }
.product-center-layout { display: grid; grid-template-columns: 258px minmax(0, 1fr); gap: 22px; align-items: stretch; }
.product-categories { align-self: stretch; display: flex; flex-direction: column; color: #fff; background: var(--forest); }
.category-intro { padding: 27px 25px 24px; border-bottom: 1px solid rgba(255,255,255,.18); }
.category-intro > span { color: #d7eacb; font: 800 9px/1 Arial, sans-serif; letter-spacing: .12em; }
.category-intro h3 { margin: 13px 0 6px; font-size: 21px; line-height: 1.35; }
.category-intro p { margin: 0; color: rgba(255,255,255,.65); font-size: 11px; }
.product-categories nav { padding: 10px; display: grid; gap: 3px; }
.product-categories nav a { min-height: 54px; padding: 0 13px 0 15px; display: flex; align-items: center; justify-content: space-between; gap: 14px; color: rgba(255,255,255,.8); text-decoration: none; font-size: 13px; transition: background .18s ease, color .18s ease; }
.product-categories nav a:hover, .product-categories nav a.active { color: var(--ink); background: #f3f7f0; }
.product-categories nav b { font: 500 17px/1 Arial, sans-serif; }
.category-contact { margin-top: auto; padding: 21px 25px 23px; display: grid; color: #fff; border-top: 1px solid rgba(255,255,255,.18); text-decoration: none; }
.category-contact small { color: rgba(255,255,255,.58); font-size: 10px; }
.category-contact strong { margin-top: 6px; color: #dff0d7; font: 800 17px/1 Arial, sans-serif; }
.product-recommendations { min-width: 0; }
.product-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-rows: 1fr; gap: 16px; }
.product-entry { min-width: 0; height: 100%; display: grid; grid-template-rows: 190px 1fr; color: var(--ink); background: #fff; border: 1px solid var(--line); text-decoration: none; transition: box-shadow .2s ease, border-color .2s ease; }
.product-entry:hover { border-color: rgba(40,112,80,.38); box-shadow: var(--shadow); }
.product-entry figure { height: 100%; margin: 0; position: relative; overflow: hidden; background: #e8ede8; }
.product-entry img { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: contain; object-position: center; }
.product-entry-placeholder figure { display: grid; place-items: center; color: #63746b; background: #eef2ed; border-bottom: 1px dashed #c8d2ca; }
.product-entry-placeholder figure > span { color: #63746b; font-size: 12px; letter-spacing: .08em; }
.product-entry-placeholder:hover { border-color: var(--line); box-shadow: none; }
.product-entry > div { min-height: 154px; padding: 19px 19px 20px; }
.product-entry span { color: var(--forest); font-size: 10px; font-weight: 900; letter-spacing: .08em; }
.product-entry h3 { margin: 9px 0 8px; font-size: 16px; line-height: 1.45; }
.product-entry p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }

@media (max-width: 1100px) {
  .product-center-layout { grid-template-columns: 225px minmax(0, 1fr); }
  .product-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .product-center { padding: 76px 20px 82px; }
  .product-center-heading { margin-bottom: 30px; grid-template-columns: 1fr; gap: 18px; }
  .product-center-layout { grid-template-columns: 1fr; }
  .product-categories { align-self: start; width: 100%; }
  .product-categories nav { grid-template-columns: 1fr 1fr; }
  .category-contact { margin-top: 4px; }
  .product-entry { grid-template-rows: 210px 1fr; }
}

@media (max-width: 520px) {
  .product-center-heading h2 { font-size: 38px; }
  .product-categories nav { grid-template-columns: 1fr 1fr; }
  .product-categories nav a { min-height: 54px; padding-left: 10px; padding-right: 9px; font-size: 11px; }
  .product-card-grid { grid-template-columns: 1fr; }
  .product-entry { grid-template-rows: 220px 1fr; }
}

/* Homepage narrative refresh: history first, product and news as dedicated-page gateways. */
.history-chapters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.history-chapters article { padding: 28px 28px 30px 0; }
.history-chapters article + article { padding-left: 28px; border-left: 1px solid var(--line); }
.history-chapters span { color: var(--forest); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.history-chapters h3 { margin: 12px 0 8px; font-size: 22px; line-height: 1.25; }
.history-chapters p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.product-gateway { padding: 104px 28px; background: var(--white); }
.product-gateway .section-inner { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: 8vw; align-items: end; }
.product-gateway-copy h2 { max-width: 680px; margin: 0; font-size: clamp(38px, 4.4vw, 62px); line-height: 1.08; letter-spacing: -.045em; }
.product-gateway-copy > p:not(.section-label) { max-width: 610px; margin: 22px 0 28px; color: var(--muted); }
.product-gateway-list { border-top: 1px solid var(--line); }
.product-gateway-list a { min-height: 104px; display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 20px; align-items: center; border-bottom: 1px solid var(--line); text-decoration: none; transition: color var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out); }
.product-gateway-list a:hover { color: var(--forest); transform: translateX(6px); }
.product-gateway-list span { color: var(--forest); font: 800 12px/1 Arial, sans-serif; }
.product-gateway-list strong { font-size: 22px; }
.product-gateway-list small { max-width: 190px; color: var(--muted); text-align: right; }
.news-preview { padding: 104px 28px; color: var(--white); background: var(--ink); }
.news-preview .section-label { color: var(--lime); }
.news-preview-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .6fr); gap: 7vw; align-items: end; }
.news-preview-heading h2 { max-width: 820px; margin: 0; font-size: clamp(38px, 4.2vw, 60px); line-height: 1.12; letter-spacing: -.04em; }
.news-preview-heading > p { margin: 0 0 4px; color: rgba(255, 255, 255, .66); }
.news-preview-grid { margin-top: 52px; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr); border-top: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.news-preview-grid article { padding: 42px 6vw 46px 0; }
.news-preview-grid time, .news-preview-grid article > span { margin-right: 16px; color: var(--lime); font-size: 12px; font-weight: 800; }
.news-preview-grid article h3 { max-width: 700px; margin: 28px 0 12px; font-size: clamp(27px, 3vw, 42px); line-height: 1.2; }
.news-preview-grid article p { max-width: 650px; margin: 0; color: rgba(255, 255, 255, .62); }
.news-preview-grid aside { padding: 38px 0 38px 34px; border-left: 1px solid var(--dark-line); }
.news-preview-grid aside > strong { display: block; margin-bottom: 20px; color: rgba(255, 255, 255, .52); font-size: 12px; letter-spacing: .1em; }
.news-preview-grid aside a { display: block; padding: 18px 0; border-top: 1px solid var(--dark-line); font-size: 18px; font-weight: 800; text-decoration: none; }
.news-preview-grid aside a span { display: block; margin-top: 5px; color: rgba(255, 255, 255, .48); font-size: 12px; font-weight: 400; }
.news-preview-link { min-height: 48px; margin-top: 28px; display: inline-flex; align-items: center; gap: 18px; color: var(--lime); font-weight: 800; text-decoration: none; }
@media (max-width: 820px) {
  .history-chapters { grid-template-columns: 1fr; }
  .history-chapters article { padding: 24px 0; }
  .history-chapters article + article { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .product-gateway { padding: 76px 20px; }
  .product-gateway .section-inner, .news-preview-heading, .news-preview-grid { grid-template-columns: 1fr; }
  .product-gateway .section-inner { gap: 48px; }
  .product-gateway-list small { max-width: 150px; }
  .news-preview { padding: 76px 20px; }
  .news-preview-heading { gap: 20px; }
  .news-preview-grid { margin-top: 36px; }
  .news-preview-grid article { padding-right: 0; }
  .news-preview-grid aside { padding-left: 0; border-top: 1px solid var(--dark-line); border-left: 0; }
}
@media (max-width: 520px) {
  html, body { overflow-x: clip; }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .product-gateway-copy h2, .news-preview-heading h2 { font-size: 36px; overflow-wrap: anywhere; }
  .product-gateway-list a { grid-template-columns: 34px minmax(0, 1fr); gap: 12px; }
  .product-gateway-list small { grid-column: 2; max-width: none; margin-top: -24px; padding-bottom: 18px; text-align: left; }
}

.product-gateway-list a { grid-template-columns: 148px minmax(0, 1fr); padding: 16px 0; }
.product-gateway-list figure { width: 148px; height: 96px; margin: 0; overflow: hidden; background: var(--paper); }
.product-gateway-list img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-medium) var(--ease-out); }
.product-gateway-list a:hover img { transform: scale(1.035); }
.product-gateway-list a > div { min-width: 0; display: grid; grid-template-columns: 38px minmax(0, 1fr); align-items: baseline; gap: 5px 12px; }
.product-gateway-list a small { grid-column: 2; max-width: none; text-align: left; }

@media (max-width: 520px) {
  .product-gateway-list a { grid-template-columns: 112px minmax(0, 1fr); gap: 16px; }
  .product-gateway-list figure { width: 112px; height: 90px; }
  .product-gateway-list a > div { grid-template-columns: 1fr; gap: 3px; }
  .product-gateway-list a small { grid-column: 1; margin: 0; padding: 0; }
}

/* Hero legibility and movable proof panel */
html, body { overflow-x: clip; }
.hero .eyebrow { font-size: 13px; }
.hero-lead, .hero-lead span { color: #0b2d25; font-size: 16px; font-weight: 600; line-height: 1.85; text-shadow: 0 1px 8px rgba(255, 255, 255, .68); }
.hero-lead strong { color: #041f19; font-size: 19px; font-weight: 900; text-shadow: 0 1px 8px rgba(255, 255, 255, .76); }
.hero-proof {
  --proof-x: 0px;
  --proof-y: 0px;
  position: relative;
  z-index: 4;
  transform: translate3d(var(--proof-x), var(--proof-y), 0);
  transform-origin: center;
  will-change: transform;
  touch-action: none;
  cursor: grab;
  user-select: none;
}
.hero-proof.is-dragging { cursor: grabbing; }
.hero-proof:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
.proof-toolbar { margin: -6px 0 14px; display: flex; align-items: center; justify-content: flex-start; }
.proof-minimize { width: 20px; min-width: 20px; min-height: 20px; padding: 0; display: grid; place-items: center; border: 1px solid rgba(11, 92, 71, .38); border-radius: 50%; color: var(--forest); background: rgba(11, 92, 71, .13); font: 900 12px/1 Arial, sans-serif; cursor: pointer; }
.hero-proof.is-dragging .proof-minimize { cursor: pointer; }
.proof-minimize span { transform: translateY(-1px); }
.proof-minimize:hover { background: rgba(11, 92, 71, .22); }
.proof-minimize:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.hero-proof.is-minimized { width: 168px; justify-self: end; padding: 14px 16px; }
.hero-proof.is-minimized .proof-toolbar { margin: 0; justify-content: flex-start; gap: 9px; }
.hero-proof.is-minimized .proof-toolbar::after { content: "制造数据"; color: var(--ink); font-size: 13px; font-weight: 800; }
.hero-proof.is-minimized .proof-content { display: none; }
.proof-label { font-size: 13px; }
.hero-proof dt small { font-size: 12px; }
.hero-proof dd { color: #405a52; font-size: 14px; }
.proof-note { color: #4c655d; font-size: 13px; }
.history-heading > p:last-child { font-size: 16px; }
.history-track strong { font-size: 14px; }
.history-note, .history-chapters span, .section-label { font-size: 13px; }
.history-chapters p { font-size: 15px; }

@media (max-width: 820px) {
  .hero .eyebrow { font-size: 12px; }
  .hero-lead { font-size: 15px; }
  .hero-lead strong { font-size: 18px; }
  .proof-toolbar { align-items: center; }
  .proof-minimize { align-self: center; }
  .history-heading > p:last-child { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-proof { will-change: auto; }
}