:root {
  --paper: #f6f7f5;
  --paper-strong: #eef0ee;
  --ink: #161823;
  --muted: #687078;
  --muted-light: #8c9397;
  --line: rgba(22, 24, 35, 0.12);
  --line-strong: rgba(22, 24, 35, 0.2);
  --glass: rgba(255, 255, 255, 0.7);
  --white: #ffffff;
  --violet: #4f36ff;
  --violet-dark: #3722d7;
  --yellow: #ffb21a;
  --green: #52c41a;
  --red: #d92629;
  --cyan: #00cfe4;
  --shell: min(1200px, calc(100% - 64px));
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-soft: 0 20px 60px rgba(22, 24, 35, 0.08);
  --shadow-card: 0 10px 28px rgba(22, 24, 35, 0.08);
  --display: "Alibaba PuHuiTi 2.0", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --body: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: rgba(79, 54, 255, 0.18); }

a { color: inherit; text-decoration: none; }

button, a { -webkit-tap-highlight-color: transparent; }

button { font: inherit; }

button:focus-visible, a:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(0, 207, 228, 0.7);
  outline-offset: 4px;
}

img { display: block; max-width: 100%; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  transition: transform 160ms ease;
}

.skip-link:focus { transform: translateY(0); }

.shell { width: var(--shell); margin-inline: auto; }

.section { position: relative; padding: 124px 0; }

.section-light { background: var(--paper-strong); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid transparent;
  background: rgba(246, 247, 245, 0.82);
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(246, 247, 245, 0.94);
}

@media (min-width: 821px) {
  .site-header { background: rgba(246, 247, 245, 0.97); backdrop-filter: none; -webkit-backdrop-filter: none; }
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.brand, .footer-brand { display: inline-flex; align-items: center; gap: 10px; }

.brand-logo-mark { width: 42px; height: 42px; object-fit: cover; border-radius: 11px; }

.brand-tagline { color: var(--ink); font-family: var(--display); font-size: 14px; font-weight: 700; letter-spacing: -0.02em; white-space: nowrap; }

.footer-brand .brand-logo-mark { width: 34px; height: 34px; border-radius: 9px; }
.footer-brand .brand-tagline { font-size: 13px; }

.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }

.desktop-nav a, .footer-links a { color: var(--muted); font-size: 14px; transition: color 160ms ease; }

.desktop-nav a:hover, .footer-links a:hover { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.button:hover { transform: translateY(-2px); }

.button:active { transform: translateY(0) scale(0.98); }

.button-primary { background: var(--ink); color: var(--white); box-shadow: 0 8px 18px rgba(22, 24, 35, 0.14); }

.button-primary:hover { background: var(--violet); box-shadow: 0 12px 24px rgba(79, 54, 255, 0.2); }

.button-secondary { border-color: var(--line-strong); background: rgba(255, 255, 255, 0.36); color: var(--ink); }

.button-secondary:hover { border-color: var(--violet); color: var(--violet); background: rgba(255, 255, 255, 0.75); }

.button-small { min-height: 40px; padding-inline: 16px; font-size: 13px; }

.menu-toggle { display: none; min-height: 40px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink); cursor: pointer; font-size: 13px; font-weight: 700; }

.mobile-menu { display: none; }

.hero { min-height: 760px; padding-top: 104px; padding-bottom: 44px; overflow: hidden; }

.hero-grid { display: grid; grid-template-columns: minmax(0, 0.88fr) minmax(470px, 1.12fr); align-items: start; gap: 78px; padding-top: 24px; }

.hero-copy { max-width: 590px; }

.eyebrow, .product-kicker, .mono-label { margin: 0; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; }

.eyebrow { display: flex; align-items: center; gap: 10px; }

.eyebrow-line { width: 26px; height: 2px; background: var(--yellow); }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 { font-family: var(--display); }

h1 { max-width: 650px; margin-bottom: 28px; font-size: clamp(42px, 5.1vw, 70px); font-weight: 800; letter-spacing: -0.055em; line-height: 1.06; overflow-wrap: anywhere; }

.hero-title-line { display: block; white-space: nowrap; }

.hero-lead { max-width: 550px; margin-bottom: 32px; color: var(--muted); font-size: 18px; line-height: 1.8; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }

.hero-meta { display: flex; flex-wrap: wrap; gap: 12px 20px; color: var(--muted-light); font-family: var(--mono); font-size: 11px; }

.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }

.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }

.status-dot-green { background: var(--green); box-shadow: 0 0 0 4px rgba(82, 196, 26, 0.14); }

.hero-visual { position: relative; min-width: 0; }

.hero-visual-topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; padding-inline: 2px; }

.live-chip { display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px; border: 1px solid rgba(82, 196, 26, 0.24); border-radius: 999px; background: rgba(255, 255, 255, 0.7); color: #3a7e1f; font-size: 12px; font-weight: 700; }

.hero-frame { position: relative; max-width: 590px; margin-left: auto; padding: 20px; border: 1px solid rgba(255, 255, 255, 0.72); border-radius: 28px; background: rgba(255, 255, 255, 0.52); box-shadow: var(--shadow-soft); }

.hero-frame-scene { box-shadow: -22px -18px 38px rgba(137, 169, 201, 0.34), 0 28px 56px rgba(22, 24, 35, 0.16); isolation: isolate; }

.hero-frame-scene::after { position: absolute; z-index: -1; top: -17px; left: -20px; width: 74%; height: 76%; border-radius: 34px 28px 30px 22px; background: rgba(156, 190, 222, 0.3); box-shadow: 0 0 28px 10px rgba(156, 190, 222, 0.18); content: ""; pointer-events: none; }

.hero-frame::before { position: absolute; inset: 10px; border: 1px solid rgba(22, 24, 35, 0.08); border-radius: 20px; content: ""; pointer-events: none; }

.hero-art { position: relative; overflow: hidden; border-radius: 22px 22px 36px 22px; box-shadow: 0 22px 48px rgba(22, 24, 35, 0.16); }

.hero-art > img { display: block; width: 100%; border: 0; border-radius: 21px 21px 34px 21px; }

.robot-stage { position: absolute; z-index: 1; top: 29%; right: 28%; bottom: 3%; left: 28%; pointer-events: none; }

.robot-stage canvas { display: block; width: 100%; height: 100%; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.hero-callout { position: absolute; display: flex; align-items: center; gap: 8px; padding: 9px 12px; border: 1px solid rgba(22, 24, 35, 0.14); border-radius: 10px; background: rgba(255, 255, 255, 0.84); box-shadow: 0 8px 24px rgba(22, 24, 35, 0.1); color: var(--muted); font-family: var(--mono); font-size: 10px; }

.hero-callout-top { top: 23%; right: -36px; }

.hero-callout-bottom { bottom: 18%; left: -30px; }

.callout-index { color: var(--violet); font-weight: 800; }

.hero-next-hint { display: flex; align-items: center; gap: 10px; padding-top: 54px; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }

.down-arrow { color: var(--violet); font-size: 19px; }

.section-heading { max-width: 570px; margin-bottom: 52px; }

.section-heading-wide { max-width: 700px; }

.section-heading h2 { margin: 14px 0 16px; font-size: clamp(34px, 4vw, 58px); font-weight: 800; letter-spacing: -0.045em; line-height: 1.1; }

.section-title-line { display: block; white-space: nowrap; }

.section-heading p:last-child { max-width: 620px; color: var(--muted); font-size: 17px; line-height: 1.8; }

.workflow-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }

.workflow-item { position: relative; min-height: 190px; padding: 26px 28px 28px 0; border-top: 1px solid var(--line-strong); }

.workflow-item:not(:last-child)::after { position: absolute; top: 34px; right: 20px; width: 34px; height: 1px; background: var(--violet); content: ""; opacity: 0.5; }

.workflow-number, .detail-number { display: block; margin-bottom: 28px; color: var(--violet); font-family: var(--mono); font-size: 12px; font-weight: 700; }

.workflow-item h3, .install-step h3 { margin-bottom: 10px; font-size: 21px; font-weight: 800; }

.workflow-item p, .install-step p { max-width: 220px; margin-bottom: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }

.workflow-item-body { display: flex; align-items: flex-start; gap: 14px; }

.workflow-item-body > div { min-width: 0; }

.workflow-icon, .detail-icon { display: inline-grid; flex: 0 0 auto; place-items: center; color: var(--violet); background: linear-gradient(135deg, rgba(79, 54, 255, 0.12), rgba(0, 207, 228, 0.13)); }

.workflow-icon { width: 48px; height: 48px; border: 1px solid rgba(79, 54, 255, 0.18); border-radius: 14px; }

.workflow-icon svg { width: 28px; height: 28px; }

.products { overflow: hidden; }

.product-panel { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); align-items: center; gap: clamp(42px, 7vw, 92px); margin-top: 32px; padding: 50px 0; border-top: 1px solid var(--line); }

.product-panel-extension { grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); }

.product-panel-extension .product-copy { order: 2; }

.product-kicker { margin-bottom: 16px; color: var(--violet); }

.product-copy h3 { margin-bottom: 14px; font-size: clamp(34px, 4vw, 52px); font-weight: 800; letter-spacing: -0.04em; line-height: 1.1; }

.product-summary { margin-bottom: 25px; color: var(--muted); font-size: 18px; }

.feature-list { display: grid; gap: 13px; margin: 0 0 28px; padding: 0; list-style: none; }

.feature-list li { position: relative; padding-left: 25px; color: var(--ink); font-size: 14px; }

.feature-list li::before { position: absolute; top: 0.65em; left: 0; width: 11px; height: 2px; background: var(--yellow); content: ""; }

.annotation-row { display: flex; flex-wrap: wrap; gap: 8px; }

.annotation-row span { padding: 6px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-family: var(--mono); font-size: 10px; }

.annotation-row .status-dot { margin-right: 3px; vertical-align: middle; }

.product-media { position: relative; min-width: 0; }

.product-media-app { display: flex; justify-content: center; padding: 26px; border: 1px solid rgba(255, 255, 255, 0.84); border-radius: 26px; background: rgba(255, 255, 255, 0.58); box-shadow: var(--shadow-soft); }

.product-media-app::before { position: absolute; inset: 12px; border: 1px solid var(--line); border-radius: 18px; content: ""; pointer-events: none; }

.product-media-app img { position: relative; width: min(100%, 510px); border: 4px solid var(--ink); border-radius: 18px; box-shadow: var(--shadow-card); }

.media-label { position: absolute; z-index: 1; top: 12px; left: 16px; padding: 5px 8px; border-radius: 6px; background: var(--ink); color: var(--white); font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; }

.extension-preview { min-height: 0; padding: 0; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.7); border-radius: 22px; background: #20232d; box-shadow: 0 18px 48px rgba(22, 24, 35, 0.16); color: var(--white); }

.extension-preview img { display: block; width: 100%; height: auto; }

.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 70px; }

.detail-item { min-height: 380px; padding: 38px 0 48px; border-top: 1px solid var(--line-strong); }

.detail-heading { display: flex; align-items: flex-start; gap: 16px; max-width: 520px; margin-bottom: 14px; }

.detail-icon { width: 56px; height: 56px; border: 1px solid rgba(79, 54, 255, 0.18); border-radius: 16px; }

.detail-icon svg { width: 34px; height: 34px; }

.detail-item h3 { max-width: 450px; margin: 0; font-size: clamp(26px, 3vw, 38px); font-weight: 800; letter-spacing: -0.035em; line-height: 1.18; }

.detail-item p { max-width: 480px; margin-bottom: 24px; color: var(--muted); font-size: 15px; line-height: 1.8; }

.detail-demo, .terminal-strip, .data-demo { display: flex; flex-wrap: wrap; gap: 8px; }

.detail-demo-highlight span { padding: 8px 10px; border-radius: 6px; background: rgba(255, 250, 112, 0.72); color: #000; font-family: var(--mono); font-size: 11px; }

.terminal-strip span, .data-demo span { padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); font-size: 11px; }

.ocr-demo { display: flex; align-items: center; gap: 12px; padding: 13px; border: 1px solid var(--line); border-radius: 10px; background: rgba(255, 255, 255, 0.5); }

.ocr-crop { width: 74px; height: 40px; border-radius: 6px; background: linear-gradient(135deg, rgba(22, 24, 35, 0.2), rgba(22, 24, 35, 0.04)); }

.ocr-text { color: var(--violet); font-family: var(--mono); font-size: 11px; }

.compatibility { background: var(--ink); color: var(--white); }

.compatibility .section-heading p:last-child { color: rgba(255, 255, 255, 0.62); }

.compatibility .eyebrow { color: rgba(255, 255, 255, 0.56); }

.compatibility .eyebrow-line { background: var(--yellow); }

.compatibility-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); align-items: start; gap: 80px; }

.compatibility-table-wrap { padding: 25px; border: 1px solid rgba(255, 255, 255, 0.16); border-radius: 16px; background: rgba(255, 255, 255, 0.06); }

.compatibility-table { width: 100%; border-collapse: collapse; }

.compatibility-table th, .compatibility-table td { padding: 17px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.12); text-align: left; vertical-align: top; }

.compatibility-table tr:last-child th, .compatibility-table tr:last-child td { border-bottom: 0; }

.compatibility-table th { width: 32%; color: rgba(255, 255, 255, 0.58); font-size: 13px; font-weight: 500; }

.compatibility-table td { color: rgba(255, 255, 255, 0.94); font-size: 14px; }

code { padding: 2px 5px; border-radius: 4px; background: rgba(255, 255, 255, 0.1); font-family: var(--mono); font-size: 0.9em; }

.compatibility-note { margin: 18px 0 0; color: rgba(255, 255, 255, 0.5); font-size: 12px; line-height: 1.7; }

.install-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 0; padding: 0; list-style: none; }

.install { background: var(--ink); color: var(--white); }

.install .section-heading p:last-child { color: rgba(255, 255, 255, 0.62); }

.install .eyebrow { color: rgba(255, 255, 255, 0.56); }

.install .eyebrow-line { background: var(--yellow); }

.install-step { min-height: 215px; padding: 24px; border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.06); }

.install-step > span { display: block; margin-bottom: 32px; color: var(--cyan); font-family: var(--mono); font-size: 12px; font-weight: 700; }

.install-step h3 { color: var(--white); }

.install-step p { color: rgba(255, 255, 255, 0.62); }

.install-note { display: flex; align-items: center; gap: 12px; max-width: 600px; margin-top: 24px; padding: 13px 15px; border: 1px solid rgba(255, 178, 26, 0.4); border-radius: 10px; background: rgba(255, 178, 26, 0.1); }

.install-note-mark { display: inline-grid; width: 22px; height: 22px; flex: 0 0 auto; place-items: center; border-radius: 50%; background: var(--yellow); color: var(--ink); font-family: var(--mono); font-size: 12px; font-weight: 800; }

.install-note p { margin: 0; color: rgba(255, 255, 255, 0.68); font-size: 13px; }

.faq-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 90px; align-items: start; }

.faq-list { border-top: 1px solid var(--line-strong); }

.faq-list details { border-bottom: 1px solid var(--line); }

.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 20px 0; cursor: pointer; list-style: none; font-family: var(--display); font-size: 18px; font-weight: 800; }

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after { color: var(--violet); content: "+"; font-family: var(--mono); font-size: 22px; font-weight: 400; }

.faq-list details[open] summary::after { content: "–"; }

.faq-list details p { max-width: 620px; margin: -3px 0 20px; color: var(--muted); font-size: 14px; line-height: 1.8; }

.download { padding-top: 104px; padding-bottom: 104px; background: var(--yellow); }

.download-inner { display: flex; align-items: end; justify-content: space-between; gap: 42px; }

.download h2 { max-width: 690px; margin: 14px 0 14px; font-size: clamp(34px, 4.4vw, 58px); font-weight: 800; letter-spacing: -0.05em; line-height: 1.08; }

.download p:last-child { max-width: 560px; margin-bottom: 0; color: rgba(22, 24, 35, 0.67); font-size: 16px; }

.download-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }

.download .button-primary { background: var(--ink); }

.download .button-secondary { border-color: rgba(22, 24, 35, 0.3); background: rgba(255, 255, 255, 0.24); }

.site-footer { padding: 32px 0 38px; background: var(--paper); }

.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }

.footer-links { display: flex; gap: 22px; }

.footer-meta { margin: 0; color: var(--muted-light); font-family: var(--mono); font-size: 10px; }

.mobile-bottom-bar { display: none; }

.toast { position: fixed; z-index: 40; right: 20px; bottom: 20px; max-width: min(360px, calc(100% - 40px)); padding: 13px 16px; border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 10px; background: var(--ink); color: var(--white); box-shadow: 0 12px 30px rgba(22, 24, 35, 0.2); font-size: 13px; }

.reveal { opacity: 1; transform: none; transition: opacity 520ms ease, transform 520ms ease; }

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 150ms; }
.reveal-delay-3 { transition-delay: 220ms; }

.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  :root { --shell: min(100% - 48px, 960px); }
  .hero-grid { grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr); gap: 42px; }
  .hero-callout-top { right: -18px; }
  .hero-callout-bottom { left: -18px; }
  .compatibility-grid, .faq-grid { gap: 48px; }
}

@media (max-width: 820px) {
  :root { --shell: calc(100% - 40px); }
  .desktop-nav, .header-actions > .button { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .mobile-menu { display: grid; gap: 2px; padding: 8px 20px 20px; border-top: 1px solid var(--line); background: rgba(246, 247, 245, 0.96); }
  .mobile-menu[hidden] { display: none; }
  .mobile-menu a { padding: 12px 0; color: var(--muted); font-size: 15px; }
  .mobile-menu .button { margin-top: 8px; }
  .section { padding: 88px 0; }
  .hero { min-height: auto; padding-top: 72px; }
  .hero-grid, .compatibility-grid, .faq-grid { grid-template-columns: minmax(0, 1fr); min-width: 0; }
  .hero-grid { gap: 54px; }
  .hero-copy { max-width: 680px; }
  h1 { max-width: 680px; font-size: clamp(44px, 9vw, 68px); }
  .hero-visual { max-width: 620px; width: 100%; margin-inline: auto; }
  .hero-next-hint { padding-top: 42px; }
  .workflow-list, .install-list { grid-template-columns: repeat(2, 1fr); }
  .workflow-item:nth-child(2)::after { display: none; }
  .product-panel, .product-panel-extension { grid-template-columns: 1fr; gap: 36px; }
  .product-panel-extension .product-copy { order: 0; }
  .detail-grid { gap: 0 32px; }
  .download-inner { display: grid; align-items: start; }
  .download-actions { justify-content: flex-start; }
  .footer-inner { flex-wrap: wrap; }
  .footer-meta { width: 100%; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100% - 32px); }
  body { padding-bottom: 76px; }
  .header-inner { min-height: 68px; }
  .brand-logo-mark { width: 36px; height: 36px; }
  .brand-tagline { font-size: 12px; }
  .section { padding: 72px 0; }
  .hero { padding-top: 54px; padding-bottom: 36px; }
  h1 { max-width: 100%; margin-bottom: 22px; font-size: clamp(34px, 9.8vw, 46px); letter-spacing: -0.045em; }
  .hero-lead { margin-bottom: 26px; font-size: 16px; line-height: 1.75; }
  .hero-actions { display: grid; }
  .hero-actions .button, .download-actions .button { width: 100%; }
  .hero-meta { gap: 9px 14px; font-size: 10px; }
  .hero-grid { max-width: 100%; }
  .hero-copy, .hero-visual, .hero-frame { width: 100%; max-width: 100%; min-width: 0; }
  .hero-frame { overflow: visible; }
  .hero-art, .hero-art > img { max-width: 100%; }
  .hero-art > img { height: auto; }
  .robot-stage { top: 29%; right: 27%; bottom: 3%; left: 27%; }
  .hero-frame { padding: 11px; border-radius: 20px; }
  .hero-frame::before { inset: 7px; border-radius: 15px; }
  .hero-frame img { border-width: 0; border-radius: 14px; }
  .hero-callout { position: static; display: inline-flex; margin-top: 8px; box-shadow: none; font-size: 9px; }
  .hero-callout-top { margin-left: 3px; }
  .hero-callout-bottom { margin-left: 8px; }
  .hero-visual-topline { margin-bottom: 10px; }
  .mono-label { font-size: 8px; }
  .live-chip { padding: 5px 8px; font-size: 10px; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2 { font-size: clamp(26px, 7.2vw, 34px); }
  .section-heading p:last-child { font-size: 15px; }
  .workflow-list, .install-list, .detail-grid { grid-template-columns: 1fr; }
  .workflow-item { min-height: auto; padding: 24px 0; }
  .workflow-item:not(:last-child)::after { top: auto; right: auto; bottom: 0; left: 0; width: 28px; }
  .workflow-number { margin-bottom: 18px; }
  .workflow-item p { max-width: none; }
  .product-panel { padding: 36px 0; }
  .product-copy h3 { font-size: 36px; }
  .product-summary { font-size: 16px; }
  .product-media-app { padding: 16px 12px; }
  .extension-preview { min-height: 0; padding: 0; }
  .detail-item { min-height: auto; padding: 32px 0 40px; }
  .detail-item h3 { font-size: 30px; }
  .compatibility-table-wrap { padding: 17px; }
  .compatibility-table th { width: 35%; }
  .compatibility-table th, .compatibility-table td { padding: 14px 0; font-size: 12px; }
  .install-step { min-height: auto; padding: 20px; }
  .install-step > span { margin-bottom: 24px; }
  .install-step h3 { font-size: 19px; }
  .faq-list summary { font-size: 16px; }
  .download { padding: 72px 0; }
  .download h2 { font-size: clamp(28px, 7.2vw, 36px); }
  .footer-links { order: 3; width: 100%; gap: 16px; }
  .mobile-bottom-bar { position: fixed; z-index: 30; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: rgba(246, 247, 245, 0.95); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
  .mobile-bottom-bar .button { min-height: 46px; padding-inline: 10px; font-size: 12px; }
  .toast { right: 16px; bottom: 86px; left: 16px; max-width: none; }
}

@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; }
  .reveal { opacity: 1; transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header, .hero-frame, .product-media-app, .live-chip, .mobile-bottom-bar { background: var(--white); backdrop-filter: none; -webkit-backdrop-filter: none; }
}