:root {
  --bg-primary: #0b0f0d;
  --bg-secondary: #101712;
  --bg-card: #131a15;
  --bg-card-hover: #1a241d;
  --accent-primary: #c8ff36;
  --text-primary: #f2f5eb;
  --text-secondary: #a3afa2;
  --text-muted: #95a194;
  --border-color: rgba(242,245,235,.13);
  --border-glow: rgba(200,255,54,.3);
  --font-display: 'Arial Narrow', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  --ease: cubic-bezier(.22,.8,.25,1);
  --transition-fast: .18s var(--ease);
  --transition-smooth: .3s var(--ease);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-font-smoothing: antialiased; }
body { min-width: 320px; font-family: var(--font-body); background: var(--bg-primary); color: var(--text-primary); line-height: 1.75; }
::selection { background: var(--accent-primary); color: var(--bg-primary); }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 5px; }
.container { width: 100%; max-width: 1360px; margin: 0 auto; padding: 0 60px; }

/* Navigation: a fixed, quiet command bar. */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; background: rgba(11,15,13,.94); border-bottom: 1px solid var(--border-color); backdrop-filter: blur(16px); transition: padding var(--transition-smooth); }
.nav.scrolled { padding: 12px 0; }
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.nav-logo { font-family: Arial, sans-serif; font-size: 23px; font-weight: 900; letter-spacing: -.06em; line-height: 1.2; }
.nav-logo span { color: var(--accent-primary); }
.nav-links { display: flex; gap: 26px; list-style: none; }
.nav-links a { display: block; color: var(--text-secondary); font-size: 14px; transition: color var(--transition-fast); }
.nav-links a:hover { color: var(--accent-primary); }
.nav-cta { padding: 10px 18px; background: var(--accent-primary); color: var(--bg-primary); border: 1px solid var(--accent-primary); border-radius: 3px; font-size: 14px; font-weight: 700; white-space: nowrap; transition: background var(--transition-fast), transform var(--transition-fast); }
.nav-cta:hover { background: #d6ff6d; }
.nav-mobile-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; background: transparent; border: 1px solid var(--border-color); }
.nav-mobile-toggle span { display: block; width: 20px; height: 2px; margin: 0 auto; background: var(--text-primary); transition: transform var(--transition-fast), opacity var(--transition-fast); }
.nav-mobile-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-mobile-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-mobile-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero: large Chinese display type meets a delivery orbit. */
.hero { position: relative; padding-top: 82px; background: radial-gradient(ellipse at 80% 35%, rgba(200,255,54,.075), transparent 45%), var(--bg-primary); }
.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: 64px; align-items: center; padding-top: 94px; padding-bottom: 70px; }
.hero-content { min-width: 0; }
.hero-badge { margin-bottom: 28px; color: var(--accent-primary); font-size: 14px; letter-spacing: .08em; }
.hero-title { font-family: var(--font-display); font-size: clamp(64px,7.2vw,106px); font-weight: 900; letter-spacing: -.065em; line-height: 1.1; }
.hero-title strong { display: block; color: var(--accent-primary); font-weight: inherit; }
.hero-subtitle { max-width: 560px; margin-top: 28px; color: var(--text-secondary); font-size: 17px; line-height: 1.9; text-wrap: pretty; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.btn-primary, .btn-secondary { display: inline-flex; justify-content: center; align-items: center; gap: 28px; min-height: 52px; padding: 12px 23px; font-size: 15px; font-weight: 700; border: 1px solid var(--border-glow); transition: background var(--transition-fast), transform var(--transition-fast); }
.btn-primary { color: var(--bg-primary); background: var(--accent-primary); border-color: var(--accent-primary); }
.btn-primary:hover { background: #d6ff6d; }
.btn-secondary:hover { background: rgba(200,255,54,.08); }
.btn-primary span, .btn-secondary span { transition: transform var(--transition-fast); }
.btn-primary:hover span, .btn-secondary:hover span { transform: translateX(4px); }
.btn-primary:active, .btn-secondary:active, .nav-cta:active, .form-submit:active { transform: scale(.98); }
.hero-foot { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 24px; color: var(--text-muted); font-size: 13px; }
.hero-foot a { display: inline-flex; gap: 18px; color: var(--text-primary); }
.hero-foot a:hover { color: var(--accent-primary); }
.orbit-art { position: relative; min-height: 450px; overflow: hidden; border: 1px solid var(--border-glow); background: linear-gradient(rgba(200,255,54,.055) 1px, transparent 1px), linear-gradient(90deg,rgba(200,255,54,.055) 1px,transparent 1px), #080b09; background-size: 40px 40px; clip-path: polygon(7% 0,100% 0,100% 92%,93% 100%,0 100%,0 8%); }
.orbit-art-heading { display: flex; justify-content: space-between; gap: 12px; padding: 24px 27px; color: var(--text-secondary); font-size: 13px; }
.orbit-art-heading span:last-child { font-family: monospace; letter-spacing: .03em; }
.orbit-scene { position: absolute; inset: 0; }
.orbit-line { position: absolute; top: 31%; left: 3%; width: 115%; height: 1px; background: rgba(200,255,54,.7); box-shadow: 0 86px rgba(200,255,54,.3), 0 172px rgba(200,255,54,.15); transform: rotate(-24deg); }
.orbit-ring { position: absolute; top: 18%; left: 23%; width: 65%; aspect-ratio: 1; border: 1px solid rgba(200,255,54,.45); border-radius: 50%; transform: rotate(-18deg) skewX(-12deg); }
.orbit-ring::before, .orbit-ring::after { content: ''; position: absolute; inset: 9%; border: 1px dashed rgba(200,255,54,.3); border-radius: 50%; }
.orbit-ring::after { inset: 26%; border-style: solid; border-color: rgba(200,255,54,.7); border-left-color: transparent; transform: rotate(48deg); }
.orbit-ring--two { top: 32%; left: 5%; width: 88%; height: 44%; aspect-ratio: auto; transform: rotate(-25deg) skewX(-18deg); border-color: rgba(242,245,235,.24); }
.orbit-ring--two::before, .orbit-ring--two::after { display: none; }
.orbit-core { position: absolute; top: 50%; left: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 112px; height: 112px; color: var(--bg-primary); background: var(--accent-primary); transform: translate(-50%,-50%) rotate(-8deg); box-shadow: 0 0 0 8px rgba(200,255,54,.07), 0 0 48px rgba(200,255,54,.12); }
.orbit-core b { font-family: Arial, sans-serif; font-size: 35px; letter-spacing: -.08em; line-height: 1.2; }
.orbit-core small { font-size: 13px; font-weight: 700; margin-top: 5px; }
.orbit-signal { position: absolute; display: flex; align-items: center; gap: 9px; color: var(--accent-primary); font-size: 14px; }
.orbit-signal b { display: grid; place-items: center; width: 28px; height: 28px; color: var(--bg-primary); background: var(--accent-primary); font-family: monospace; font-size: 13px; }
.orbit-signal--one { top: 22%; right: 13%; }
.orbit-signal--two { bottom: 24%; right: 9%; }
.orbit-signal--three { bottom: 12%; left: 9%; }
.orbit-art-caption { position: absolute; right: 25px; bottom: 22px; color: var(--text-muted); font: 12px monospace; }

/* Editorial sections: shared alignment, varied rhythm, no nested cards. */
.section { padding: 88px 0; border-top: 1px solid var(--border-color); }
.section-header { margin-bottom: 42px; }
.section-label { display: block; margin-bottom: 14px; color: var(--accent-primary); font-size: 14px; font-weight: 600; }
.section-title { font-family: var(--font-display); font-size: clamp(30px,3.3vw,46px); font-weight: 800; line-height: 1.3; letter-spacing: -.035em; margin-bottom: 16px; text-wrap: balance; }
.section-desc { color: var(--text-secondary); font-size: 16px; max-width: 650px; line-height: 1.8; }
.about { background: var(--bg-secondary); }
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 84px; align-items: center; }
.about-text p { color: var(--text-secondary); font-size: 16px; line-height: 1.9; margin-top: 14px; max-width: 560px; }
.about-text strong { color: var(--text-primary); font-weight: 500; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.stat-card { padding: 28px 30px; }
.stat-card:nth-child(odd) { border-right: 1px solid var(--border-color); }
.stat-card:nth-child(-n+2) { border-bottom: 1px solid var(--border-color); }
.stat-number { color: var(--accent-primary); font-family: Arial, sans-serif; font-size: clamp(40px,4vw,62px); font-weight: 800; letter-spacing: -.04em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-label { margin-top: 10px; color: var(--text-secondary); font-size: 14px; }
.process-timeline { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 24px; position: relative; }
.process-timeline::before, .process-timeline-line { position: absolute; top: 31px; left: 10%; height: 1px; }
.process-timeline::before { content: ''; right: 10%; background: var(--border-color); }
.process-timeline-line { width: 0; background: var(--accent-primary); transition: width 1.2s var(--ease); }
.process-step { position: relative; z-index: 1; }
.step-icon { display: grid; place-items: center; width: 62px; height: 62px; margin-bottom: 22px; border: 1px solid var(--border-glow); background: var(--bg-primary); }
.step-icon svg, .service-icon svg, .industry-icon svg, .contact-item-icon svg { width: 26px; height: 26px; stroke: var(--accent-primary); stroke-width: 1.5; stroke-linecap: square; stroke-linejoin: miter; fill: none; }
.step-number { color: var(--accent-primary); font: 13px monospace; margin-bottom: 8px; }
.step-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.step-desc { color: var(--text-secondary); font-size: 14px; line-height: 1.75; max-width: 185px; }
.services { background: var(--bg-secondary); }
.services-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.service-card { padding: 30px 26px; border-right: 1px solid var(--border-color); transition: background var(--transition-smooth); }
.service-card:first-child { padding-left: 0; }
.service-card:last-child { border-right: 0; }
.service-card:hover { background: rgba(200,255,54,.03); }
.service-icon { margin-bottom: 28px; }
.service-icon svg { width: 30px; height: 30px; }
.service-title { font-size: 20px; font-weight: 700; margin-bottom: 15px; }
.service-desc { color: var(--text-secondary); font-size: 14px; line-height: 1.85; margin-bottom: 24px; }
.service-tags, .case-tags { display: flex; flex-wrap: wrap; gap: 8px 12px; }
.service-tag, .case-tag { color: var(--text-secondary); font-size: 13px; }
.service-tag + .service-tag::before, .case-tag + .case-tag::before { content: '/'; margin-right: 12px; color: var(--text-muted); }
.cases-featured { display: grid; gap: 0; margin-bottom: 54px; }
.case-card { display: grid; grid-template-columns: 1.12fr 1fr; gap: 54px; align-items: center; padding: 38px 0; border-top: 1px solid var(--border-color); }
.case-card:last-child { border-bottom: 1px solid var(--border-color); }
.case-visual { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-card); }
.case-image { width: 100%; height: 100%; object-fit: cover; cursor: zoom-in; transition: transform .4s var(--ease); }
.case-image:hover { transform: scale(1.025); }
.case-visual::after { content: '查看项目大图 +'; position: absolute; right: 12px; bottom: 12px; padding: 6px 12px; background: var(--bg-primary); color: var(--text-primary); font-size: 13px; pointer-events: none; }
.case-client { color: var(--accent-primary); font-size: 14px; margin-bottom: 12px; }
.case-title { font-size: clamp(24px,2.3vw,32px); line-height: 1.35; margin-bottom: 16px; letter-spacing: -.02em; }
.case-desc { font-size: 15px; line-height: 1.9; color: var(--text-secondary); margin-bottom: 24px; max-width: 530px; }
.cases-other-title { margin-bottom: 20px; font-size: 18px; font-weight: 600; }
.cases-other-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; }
.case-other-item { position: relative; padding: 22px; border: 1px solid var(--border-color); background: var(--bg-secondary); cursor: pointer; transition: border-color var(--transition-fast), background var(--transition-fast); }
.case-other-item:hover, .case-other-item[aria-expanded="true"] { border-color: var(--border-glow); background: var(--bg-card-hover); }
.case-other-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.case-other-type { color: var(--text-secondary); font-size: 14px; }
.case-other-item::after { content: '查看二维码 +'; display: block; margin-top: 14px; color: var(--accent-primary); font-size: 13px; }
.case-qr-popup { position: absolute; bottom: calc(100% + 10px); left: 50%; width: 214px; padding: 15px; display: flex; flex-direction: column; align-items: center; gap: 10px; color: var(--text-primary); background: var(--bg-card-hover); border: 1px solid var(--border-glow); transform: translateX(-50%) translateY(8px); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s; z-index: 20; }
.case-qr-popup img { width: 180px; height: 180px; background: white; object-fit: contain; }
.case-qr-popup span { font-size: 13px; white-space: nowrap; }
@media (hover: hover) { .case-other-item:hover .case-qr-popup { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); pointer-events: auto; } }
.case-other-item[aria-expanded="true"] .case-qr-popup { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); pointer-events: auto; }
.industries { background: var(--bg-secondary); }
.industries-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.industry-card { display: flex; align-items: center; gap: 20px; padding: 26px 22px; border-right: 1px solid var(--border-color); }
.industry-card:last-child { border-right: 0; }
.industry-name { font-size: 17px; font-weight: 600; }
.industry-icon { display: flex; }

/* Contact preserves existing fields and the EmailJS / mailto boundary. */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 84px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 30px; }
.contact-info .section-header { margin-bottom: 12px; }
.contact-info-title { font-size: 28px; font-weight: 700; line-height: 1.5; margin-bottom: 12px; }
.contact-info-desc { color: var(--text-secondary); font-size: 15px; max-width: 450px; }
.contact-items { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 20px; }
.contact-item { display: flex; align-items: flex-start; gap: 13px; }
.contact-item-icon { flex-shrink: 0; padding-top: 4px; }
.contact-item-icon svg { width: 20px; height: 20px; }
.contact-item-label { color: var(--text-secondary); font-size: 13px; margin-bottom: 5px; }
.contact-item-value { font-size: 14px; overflow-wrap: anywhere; }
.contact-qr { display: flex; align-items: center; gap: 18px; }
.contact-qr-img { width: 124px; height: 124px; object-fit: contain; background: white; }
.contact-qr-label { font-size: 14px; color: var(--text-secondary); }
.contact-form { padding: 32px; border: 1px solid var(--border-color); background: var(--bg-card); }
.contact-form-title { font-size: 23px; margin-bottom: 26px; }
.form-group { min-width: 0; margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.form-input, .form-textarea { display: block; width: 100%; padding: 12px 14px; background: var(--bg-primary); border: 1px solid rgba(242,245,235,.22); border-radius: 0; color: var(--text-primary); font-size: 16px; transition: border-color var(--transition-fast); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-input:focus, .form-textarea:focus { border-color: var(--accent-primary); outline: 1px solid var(--accent-primary); outline-offset: 0; }
.form-textarea { resize: vertical; min-height: 112px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit { min-height: 50px; width: 100%; margin-top: 4px; background: var(--accent-primary); color: var(--bg-primary); border: 0; font-size: 15px; font-weight: 700; transition: background var(--transition-fast), transform var(--transition-fast); }
.form-submit:hover { background: #d6ff6d; }
.form-submit:disabled { opacity: .6; cursor: wait; transform: none; }
.form-toast { position: fixed; top: 88px; right: 24px; max-width: min(440px,calc(100vw - 40px)); padding: 16px 24px; font-size: 15px; z-index: 11000; opacity: 0; transform: translateY(-10px); transition: opacity var(--transition-smooth), transform var(--transition-smooth); pointer-events: none; background: #1a241d; border: 1px solid var(--accent-primary); color: var(--text-primary); }
.form-toast.show { opacity: 1; transform: translateY(0); }
.form-toast.error { background: #341c1a; border-color: #ff9b88; color: #ffc0b3; }
.footer { padding: 54px 0 28px; background: var(--bg-secondary); border-top: 1px solid var(--border-color); }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.3fr; gap: 40px; margin-bottom: 42px; }
.footer-brand-desc { font-size: 14px; line-height: 1.9; color: var(--text-secondary); margin-top: 16px; max-width: 310px; }
.footer-col-title { font-size: 14px; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; list-style: none; font-size: 13px; color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent-primary); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 24px; border-top: 1px solid var(--border-color); }
.footer-copyright { display: flex; flex-wrap: wrap; gap: 8px 20px; color: var(--text-secondary); font-size: 13px; }
.footer-copyright a { white-space: nowrap; text-decoration: underline; text-underline-offset: 3px; }
.footer-copyright a:hover { color: var(--accent-primary); }
.footer-socials { display: flex; gap: 12px; }
.footer-social { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--border-color); }
.footer-social svg { width: 18px; height: 18px; stroke: var(--text-secondary); fill: none; stroke-width: 1.5; }
.footer-social:hover svg { stroke: var(--accent-primary); }
.back-to-top { position: fixed; right: 24px; bottom: 24px; display: grid; place-items: center; width: 44px; height: 44px; color: var(--bg-primary); background: var(--accent-primary); border: 0; z-index: 900; opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast); }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; }

/* Image preview: an accessible dialog, not a replacement for the real projects. */
.image-preview-modal { position: fixed; inset: 0; z-index: 10000; display: flex; align-items: center; justify-content: center; padding: 64px 20px 24px; opacity: 0; visibility: hidden; transition: opacity .25s var(--ease), visibility .25s; }
.image-preview-modal.active { opacity: 1; visibility: visible; transition: opacity .25s var(--ease); }
.image-preview-overlay { position: absolute; inset: 0; background: rgba(8,11,9,.96); cursor: pointer; }
.image-preview-container { position: relative; z-index: 1; width: fit-content; max-width: 92vw; max-height: 85vh; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.image-preview-modal.active .image-preview-container { transform: none; }
.image-preview-img { max-width: 100%; max-height: calc(85vh - 58px); object-fit: contain; cursor: zoom-out; }
.image-preview-close { position: absolute; top: -48px; right: 0; display: grid; place-items: center; width: 40px; height: 40px; background: var(--bg-card-hover); border: 1px solid var(--border-glow); color: var(--text-primary); }
.image-preview-close svg { stroke: currentColor; stroke-width: 2; }
.image-preview-caption { font-size: 14px; color: var(--text-secondary); text-align: center; }

/* Content is visible without JS. Motion only hides elements while animating. */
@media (max-width: 1100px) {
  .container { padding: 0 36px; }
  .nav-links { gap: 16px; }
  .nav .container { gap: 16px; }
  .hero-grid { gap: 36px; padding-top: 75px; padding-bottom: 58px; }
  .hero-title { font-size: 78px; }
  .orbit-art { min-height: 390px; }
  .desktop-break { display: none; }
  .about-grid, .contact-grid { gap: 44px; }
  .services-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .service-card:first-child { padding-left: 26px; }
  .service-card:nth-child(2) { border-right: 0; }
  .service-card:nth-child(-n+2) { border-bottom: 1px solid var(--border-color); }
  .industry-card { gap: 12px; padding: 24px 14px; }
  .footer-grid { gap: 24px; }
}
@media (max-width: 900px) {
  .nav-links { display: flex; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 18px 28px; gap: 0; background: #101712; border-bottom: 1px solid var(--border-color); visibility: hidden; opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s; }
  .nav-links.active { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
  .nav-links a { padding: 10px 0; font-size: 16px; }
  .nav-mobile-toggle { display: flex; }
  .nav-cta { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .hero-title { font-size: clamp(54px,7.6vw,72px); }
  .hero-subtitle { font-size: 15px; }
  .orbit-art { min-height: 340px; }
  .orbit-art-heading { padding: 20px; }
  .orbit-art-heading span:last-child { display: none; }
  .orbit-core { width: 90px; height: 90px; }
  .orbit-art-caption { right: 16px; font-size: 10px; }
  .hero-actions { gap: 8px; }
  .btn-primary, .btn-secondary { gap: 18px; padding: 12px 16px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(4,minmax(0,1fr)); }
  .stat-card { padding: 24px 20px; border-right: 1px solid var(--border-color); }
  .stat-card:nth-child(-n+2) { border-bottom: 0; }
  .stat-card:last-child { border-right: 0; }
  .case-card { gap: 30px; }
  .contact-items { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px; }
}
@media (max-width: 600px) {
  .container { padding: 0 22px; }
  .nav { padding: 12px 0; }
  .nav .container { gap: 12px; }
  .nav-logo { font-size: 21px; }
  .nav-cta { font-size: 13px; padding: 9px 12px; }
  .hero { padding-top: 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; padding-top: 46px; padding-bottom: 30px; }
  .hero-badge { margin-bottom: 22px; font-size: 13px; }
  .hero-title { font-size: clamp(58px,17vw,82px); line-height: 1.1; }
  .hero-subtitle { margin-top: 23px; font-size: 16px; line-height: 1.85; }
  .hero-actions { margin-top: 26px; gap: 10px; }
  .btn-primary, .btn-secondary { padding: 12px 18px; gap: 24px; }
  .orbit-art { min-height: 312px; }
  .orbit-art-heading { padding: 18px 23px; }
  .orbit-art-heading span:last-child { display: inline; }
  .orbit-ring--one { top: 16%; left: 23%; width: 64%; }
  .orbit-core { width: 88px; height: 88px; }
  .orbit-core b { font-size: 28px; }
  .orbit-art-caption { font-size: 10px; right: 18px; bottom: 15px; }
  .orbit-signal--one { top: 22%; right: 10%; }
  .hero-foot { padding-bottom: 22px; }
  .hero-foot > span { display: none; }
  .hero-foot a { margin-left: auto; }
  .section { padding: 60px 0; }
  .section-header { margin-bottom: 30px; }
  .section-title { font-size: 31px; margin-bottom: 14px; }
  .section-label { font-size: 14px; margin-bottom: 12px; }
  .section-desc { font-size: 15px; }
  .about-grid { gap: 28px; }
  .about-text p { font-size: 15px; line-height: 1.9; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .stat-card { padding: 25px 20px; }
  .stat-card:nth-child(2) { border-right: 0; }
  .stat-card:nth-child(-n+2) { border-bottom: 1px solid var(--border-color); }
  .stat-number { font-size: 47px; }
  .process-timeline { grid-template-columns: 1fr; gap: 28px; }
  .process-timeline::before, .process-timeline-line { display: none; }
  .process-step { display: flex; gap: 20px; align-items: center; }
  .step-icon { flex-shrink: 0; width: 58px; height: 58px; margin: 0; }
  .step-title { margin-bottom: 5px; }
  .step-desc { max-width: none; }
  .step-number { margin-bottom: 3px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card, .service-card:first-child { padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--border-color); }
  .service-card:last-child { border-bottom: 0; }
  .service-icon { float: right; margin: 0 0 10px 12px; }
  .service-title { font-size: 22px; }
  .service-desc { font-size: 15px; margin-bottom: 18px; }
  .case-card { grid-template-columns: 1fr; gap: 24px; padding: 30px 0; }
  .case-title { font-size: 26px; }
  .case-desc { font-size: 15px; margin-bottom: 18px; }
  .cases-other-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .case-other-item { padding: 18px 12px; }
  .case-other-name { font-size: 15px; }
  .case-other-type { font-size: 13px; }
  .case-other-item:nth-child(odd) .case-qr-popup { left: 0; transform: translateY(8px); }
  .case-other-item:nth-child(even) .case-qr-popup { left: auto; right: 0; transform: translateY(8px); }
  .case-other-item[aria-expanded="true"] .case-qr-popup { transform: translateY(0); }
  .industries-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .industry-card { padding: 22px 16px; gap: 16px; border-bottom: 1px solid var(--border-color); }
  .industry-card:nth-child(even) { border-right: 0; }
  .industry-card:last-child { border-bottom: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .contact-info-title { font-size: 26px; }
  .contact-items { grid-template-columns: 1fr; gap: 22px; }
  .contact-item-value { font-size: 15px; }
  .contact-form { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer { padding: 42px 0 24px; }
  .footer-grid { gap: 32px 20px; }
  .footer-grid > div:first-child, .footer-grid > div:last-child { grid-column: 1 / -1; }
  .footer-brand-desc { max-width: none; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .back-to-top { right: 16px; bottom: 16px; }
  .image-preview-caption { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}