:root {
  --color-ink: #17231f;
  --color-muted: #5f7069;
  --color-brand: #0b8f57;
  --color-brand-dark: #06633e;
  --color-brand-soft: #e9f8f0;
  --color-accent: #f4b740;
  --color-surface: #ffffff;
  --color-surface-soft: #f5faf7;
  --color-surface-tint: #edf7f3;
  --color-line: #d9e6df;
  --color-focus: #1769d1;
  --container: 1180px;
  --section-gap: clamp(18px, 3vw, 28px);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-sm: 0 8px 24px rgba(22, 63, 45, 0.07);
  --shadow-lg: 0 24px 64px rgba(22, 63, 45, 0.12);
  --motion: 180ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: #fbfdfc;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.6;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
button, input { font: inherit; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: #fff;
  background: var(--color-ink);
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: 12px; }
.homepage {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0 72px;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 40;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-6);
  min-height: 68px;
  padding: 10px 12px 10px 16px;
  border: 1px solid rgba(217, 230, 223, 0.92);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
}
.brand, .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--color-ink);
  text-decoration: none;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  color: #fff;
  background: linear-gradient(145deg, var(--color-brand), #16b86f);
  border-radius: 13px;
  font-size: 20px;
  font-weight: 900;
  box-shadow: 0 7px 15px rgba(11, 143, 87, 0.22);
}
.brand-copy { display: grid; line-height: 1.15; }
.brand-name { font-size: 15px; letter-spacing: .08em; }
.brand-sub { color: var(--color-muted); font-size: 11px; letter-spacing: .03em; }
.nav-links { display: flex; justify-content: flex-end; align-items: center; gap: 4px; min-width: 0; }
.nav-link, .login-link {
  padding: 9px 10px;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.nav-link:hover, .login-link:hover { color: var(--color-brand-dark); background: var(--color-brand-soft); }
.header-actions { display: inline-flex; align-items: center; gap: 4px; margin-left: 4px; }
.menu-toggle { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  transition: transform var(--motion), box-shadow var(--motion), background var(--motion);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(22, 63, 45, .14); }
.btn-primary { color: #fff; background: var(--color-brand); }
.btn-primary:hover { background: var(--color-brand-dark); }
.btn-secondary { color: var(--color-brand-dark); border-color: #b9d9c8; background: #fff; }
.btn-secondary:hover { background: var(--color-brand-soft); }

.section, .value-strip {
  margin-top: var(--section-gap);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}
.section { padding: clamp(24px, 5vw, 56px); background: var(--color-surface); box-shadow: var(--shadow-sm); }
.section-head { max-width: 720px; margin-bottom: 24px; }
.eyebrow, .card-kicker {
  margin: 0 0 8px;
  color: var(--color-brand);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.section-head h2 { margin: 0; font-size: clamp(28px, 4vw, 48px); line-height: 1.16; letter-spacing: -.035em; }
.section-desc { max-width: 680px; margin: 12px 0 0; color: var(--color-muted); font-size: 16px; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: center;
  min-height: 560px;
  padding: clamp(28px, 6vw, 72px);
  border: 0;
  background: radial-gradient(circle at 85% 15%, rgba(155, 232, 192, .35), transparent 26%), linear-gradient(135deg, #effaf4 0%, #f7fbf8 56%, #e9f3ed 100%);
  box-shadow: none;
}
.hero h1 { max-width: 620px; margin: 0; font-size: clamp(38px, 6vw, 68px); line-height: 1.08; letter-spacing: -.055em; }
.hero-eyebrow { margin-bottom: 16px; }
.hero-subtitle { max-width: 600px; margin: 22px 0 0; color: var(--color-muted); font-size: clamp(16px, 2vw, 20px); line-height: 1.7; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-highlights { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 24px 0 0; list-style: none; }
.hero-highlights li { padding: 6px 11px; color: var(--color-brand-dark); background: rgba(255, 255, 255, .78); border: 1px solid #c8e2d3; border-radius: var(--radius-pill); font-size: 13px; font-weight: 800; }
.hero-note, .test-note { margin: 20px 0 0; color: var(--color-muted); font-size: 12px; }
.hero-media { position: relative; aspect-ratio: 1.2 / 1; min-width: 0; overflow: hidden; border: 8px solid rgba(255, 255, 255, .68); border-radius: 32px; background: #dcefe3; box-shadow: var(--shadow-lg); }
.hero-image { display: block; width: 100%; height: 100%; object-fit: cover; }
.hero-media-caption { position: absolute; right: 18px; bottom: 18px; display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px; color: #fff; background: rgba(23, 49, 39, .84); border-radius: var(--radius-pill); font-size: 12px; font-weight: 800; }
.status-dot { width: 8px; height: 8px; background: #5ce092; border-radius: 50%; }
.hero-conversation { position: absolute; top: 10%; left: 5%; z-index: 2; width: min(230px, 42%); padding: 10px; border-radius: 16px; background: rgba(255,255,255,.94); box-shadow: 0 14px 30px rgba(22,63,45,.16); }
.chat-label { display: block; color: var(--color-muted); font-size: 10px; font-weight: 900; }
.assistant-label { margin-top: 8px; text-align: right; }
.chat-bubble { max-width: 92%; padding: 7px 9px; margin: 3px 0 0; border-radius: 11px; font-size: 11px; line-height: 1.45; }
.chat-bubble.incoming { color: var(--color-ink); background: #eef5f1; }
.chat-bubble.outgoing { margin-left: auto; color: #fff; background: var(--color-brand); }
.hero-dashboard { position: absolute; right: 5%; bottom: 9%; z-index: 2; display: grid; gap: 3px; width: min(245px, 44%); padding: 13px; color: var(--color-ink); border: 1px solid rgba(255,255,255,.85); border-radius: 15px; background: rgba(255,255,255,.95); box-shadow: 0 14px 30px rgba(22,63,45,.16); font-size: 11px; }
.hero-dashboard strong { font-size: 13px; }
.dashboard-status { color: var(--color-brand); font-size: 10px; font-weight: 800; }
.dashboard-line { color: var(--color-muted); font-size: 10px; }

.gpchat-advisor-section { background: linear-gradient(135deg, #fffaf0 0%, #fff 52%, #eef8f2 100%); }
.gpchat-layout { display: grid; grid-template-columns: minmax(250px, .82fr) minmax(0, 1.18fr); gap: 24px; align-items: stretch; }
.gpchat-product-view { position: relative; display: flex; align-items: center; justify-content: center; min-height: 420px; padding: 26px; border: 1px solid #eadcc0; border-radius: var(--radius-lg); background: radial-gradient(circle at 20% 20%, #fff 0, transparent 40%), #f8eedc; }
.gpchat-product-card { width: min(100%, 300px); padding: 14px; border: 1px solid #e6d8bd; border-radius: 18px; background: #fff; box-shadow: 0 18px 36px rgba(97, 72, 31, .15); }
.gpchat-product-media { aspect-ratio: 1.2 / 1; overflow: hidden; border-radius: 12px; background: #edf7f3; }
.gpchat-product-media img { display: block; width: 100%; height: 100%; object-fit: cover; }
.gpchat-product-card h3 { margin: 0; font-size: 21px; }
.gpchat-product-description { margin: 8px 0 0; color: var(--color-muted); font-size: 13px; line-height: 1.6; }
.gpchat-product-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.gpchat-spec { padding: 4px 8px; color: var(--color-brand-dark); border: 1px solid #c8e2d3; border-radius: var(--radius-pill); background: var(--color-brand-soft); font-size: 11px; font-weight: 800; }
.gpchat-video-entry { display: inline-flex; align-items: center; gap: 5px; margin-top: 14px; color: #8b5b12; font-size: 11px; font-weight: 900; }
.gpchat-product-footer { display: flex; align-items: center; gap: 8px; margin-top: 18px; }
.gpchat-product-footer strong { color: var(--color-brand-dark); font-size: 18px; }
.gpchat-cart-state { margin-left: auto; padding: 5px 8px; color: #8b5b12; background: #fff3ce; border-radius: var(--radius-pill); font-size: 11px; font-weight: 800; }
.gpchat-step-chip { position: absolute; top: 18px; left: 18px; padding: 6px 10px; color: #8b5b12; border: 1px solid #e7d39d; border-radius: var(--radius-pill); background: #fff8e8; font-size: 11px; font-weight: 900; }
.gpchat-window { display: flex; flex-direction: column; min-height: 420px; overflow: hidden; border: 1px solid #c8ded1; border-radius: var(--radius-lg); background: #f8fcfa; box-shadow: 0 18px 40px rgba(22, 63, 45, .12); }
.gpchat-window-header { display: flex; align-items: center; gap: 10px; padding: 16px 18px; color: #fff; background: #173f2d; }
.gpchat-avatar { display: grid; place-items: center; width: 36px; height: 36px; color: #173f2d; border-radius: 12px; background: #9be8c0; font-size: 17px; font-weight: 950; }
.gpchat-identity { display: grid; gap: 2px; }
.gpchat-identity strong { font-size: 14px; }
.gpchat-identity span { color: #b8d8c5; font-size: 11px; }
.gpchat-online { margin-left: auto; color: #9be8c0; font-size: 11px; font-weight: 900; }
.gpchat-messages { display: grid; gap: 11px; flex: 1; padding: 20px; background: linear-gradient(180deg, #f1f8f4, #fbfefd); }
.gpchat-message { max-width: 82%; }
.gpchat-message.assistant { justify-self: start; }
.gpchat-message.customer { justify-self: end; text-align: right; }
.gpchat-message-label { display: block; margin-bottom: 4px; color: #8aa195; font-size: 10px; font-weight: 900; }
.gpchat-message p { display: inline-block; padding: 10px 12px; margin: 0; border-radius: 14px; color: var(--color-ink); background: #fff; box-shadow: 0 4px 12px rgba(22, 63, 45, .06); font-size: 13px; line-height: 1.5; text-align: left; }
.gpchat-message.customer p { color: #fff; background: #168358; }
.gpchat-chat-action { display: flex; align-items: center; gap: 12px; padding: 13px 18px; border-top: 1px solid #dbe9e1; background: #fff; }
.gpchat-chat-action > span { color: var(--color-muted); font-size: 12px; }
.gpchat-chat-action .btn { margin-left: auto; padding: 9px 13px; font-size: 12px; }
.gpchat-journey { display: flex; align-items: stretch; gap: 9px; margin-top: 22px; }
.gpchat-journey-step { display: grid; flex: 1 1 0; gap: 5px; min-width: 0; padding: 12px; border: 1px solid #c8ded1; border-radius: var(--radius-sm); background: rgba(255,255,255,.72); }
.gpchat-journey-index { color: var(--color-brand); font-size: 10px; font-weight: 900; }
.gpchat-journey-step strong { font-size: 12px; line-height: 1.35; }
.gpchat-journey .flow-arrow { align-self: center; }
.agent-capability { display: inline-flex; width: fit-content; margin-top: 6px; padding: 4px 7px; color: #7a5311; border-radius: var(--radius-pill); background: #fff1c7; font-size: 10px; font-weight: 900; }
.gpchat-features-section { background: #f5fbf7; }
.gpchat-features-section .feature-card { border-color: #c8e2d3; background: #fff; }

.value-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); padding: 0; background: #fff; box-shadow: var(--shadow-sm); }
.value-item { display: grid; gap: 1px; padding: 20px 18px; border-right: 1px solid var(--color-line); }
.value-item:last-child { border-right: 0; }
.value-index { color: var(--color-brand); font-size: 11px; font-weight: 900; letter-spacing: .08em; }
.value-item strong { font-size: 14px; }
.value-item > span:last-child { color: var(--color-muted); font-size: 12px; }

.solution-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.solution-card { display: flex; flex-direction: column; min-width: 0; padding: 14px; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: var(--color-surface-soft); }
.solution-media { aspect-ratio: 16 / 9; margin-bottom: 20px; overflow: hidden; border-radius: 12px; background: #dff1e7; }
.solution-media img { display: block; width: 100%; height: 100%; object-fit: cover; }
.solution-card h3, .agent-card h3, .workspace-aside h3, .feature-card h3, .step-card h3 { margin: 0; font-size: 21px; line-height: 1.3; }
.solution-card > p:not(.card-kicker) { margin: 10px 0 0; color: var(--color-muted); }
.card-points, .check-list { display: grid; gap: 7px; padding: 0; margin: 18px 0; list-style: none; }
.card-points li, .check-list li { position: relative; padding-left: 20px; color: var(--color-muted); font-size: 13px; }
.card-points li::before, .check-list li::before { position: absolute; left: 0; color: var(--color-brand); content: "✓"; font-weight: 900; }
.text-link { display: inline-flex; align-items: center; gap: 7px; margin-top: auto; color: var(--color-brand-dark); font-size: 14px; font-weight: 900; text-decoration: none; }
.text-link::after { content: "→"; transition: transform var(--motion); }
.text-link:hover::after { transform: translateX(3px); }

.agent-section { background: var(--color-surface-tint); }
.agent-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.agent-card { display: grid; grid-template-columns: auto 1fr; gap: 14px; min-width: 0; padding: 18px; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: #fff; }
.agent-avatar { display: grid; place-items: center; width: 46px; height: 46px; color: #fff; background: var(--color-brand); border-radius: 15px; font-size: 14px; font-weight: 900; }
.agent-number { color: var(--color-brand); font-size: 11px; font-weight: 900; }
.agent-card h3 { margin-top: 2px; font-size: 17px; }
.agent-card p { margin: 7px 0 0; color: var(--color-muted); font-size: 13px; }
.agent-image { grid-column: 1 / -1; aspect-ratio: 16 / 5; overflow: hidden; border-radius: 10px; background: #edf7f3; }
.agent-image img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: .8; }
.tone-mint .agent-avatar, .tone-green { background: #0b8f57; }
.tone-sky .agent-avatar, .tone-blue { background: #2375a5; }
.tone-violet .agent-avatar, .tone-purple { background: #7359a8; }
.tone-amber .agent-avatar, .tone-orange { background: #bd751d; }
.tone-rose .agent-avatar { background: #ad536b; }
.governance-note { margin: 24px 0 0; padding: 14px 16px; color: var(--color-brand-dark); background: #e2f5e9; border-radius: var(--radius-sm); font-size: 13px; }

.workspace-section { background: #f3f8f5; }
.workspace-layout { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr); gap: 28px; align-items: center; }
.workspace-visual { padding: 18px; border: 1px solid #c8ded1; border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-sm); }
.workspace-topbar { display: flex; align-items: center; gap: 10px; padding-bottom: 16px; border-bottom: 1px solid var(--color-line); }
.workspace-logo { display: grid; place-items: center; width: 30px; height: 30px; color: #fff; background: var(--color-brand); border-radius: 9px; font-weight: 900; }
.workspace-badge { margin-left: auto; padding: 5px 9px; color: var(--color-brand-dark); background: var(--color-brand-soft); border-radius: var(--radius-pill); font-size: 11px; font-weight: 800; }
.workspace-dashboard { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.workspace-sidebar { display: flex; gap: 6px; flex-wrap: wrap; padding: 14px 0 0; }
.workspace-sidebar span { padding: 6px 9px; color: var(--color-muted); border-radius: 8px; font-size: 11px; font-weight: 800; }
.workspace-sidebar .is-active { color: var(--color-brand-dark); background: var(--color-brand-soft); }
.workspace-chart { margin-top: 14px; padding: 12px; border: 1px solid var(--color-line); border-radius: 12px; background: var(--color-surface-soft); color: var(--color-muted); font-size: 11px; font-weight: 800; }
.chart-bars { display: flex; align-items: end; gap: 8px; height: 68px; padding-top: 10px; }
.chart-bars i { display: block; flex: 1; min-width: 8px; height: var(--bar-height); border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, #67d99d, var(--color-brand)); }
.bar-a { --bar-height: 34%; } .bar-b { --bar-height: 46%; } .bar-c { --bar-height: 40%; } .bar-d { --bar-height: 68%; } .bar-e { --bar-height: 58%; } .bar-f { --bar-height: 82%; }
.workspace-tile { display: grid; gap: 8px; min-height: 90px; padding: 13px; border: 1px solid var(--color-line); border-radius: 12px; background: var(--color-surface-soft); }
.workspace-tile span { color: var(--color-muted); font-size: 12px; }
.workspace-tile strong { font-size: 14px; }
.state-positive { border-color: #aad9bc; background: #effaf3; }
.state-info { border-color: #b9d8e8; background: #f1f8fc; }
.state-warning { border-color: #efd29d; background: #fff9ed; }
.workspace-timeline { display: grid; gap: 10px; padding: 18px 0 0; margin: 0; list-style: none; }
.workspace-timeline li { display: flex; align-items: center; gap: 10px; color: var(--color-muted); font-size: 13px; }
.workspace-timeline li::before { color: #9eb2a8; content: attr(data-step); font-size: 11px; font-weight: 900; }
.timeline-dot { width: 8px; height: 8px; background: var(--color-brand); border-radius: 50%; }
.workspace-aside { padding: 12px; }
.workspace-aside > p:not(.card-kicker) { margin: 12px 0; color: var(--color-muted); }

.integration-section { background: #182b25; color: #f4fbf7; border-color: #182b25; }
.integration-section .section-desc { color: #b8cbc1; }
.integration-flow { display: flex; align-items: stretch; gap: 10px; }
.integration-node { display: grid; flex: 1 1 0; gap: 7px; min-width: 0; padding: 18px; border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius-md); background: rgba(255,255,255,.08); }
.integration-node strong { font-size: 18px; line-height: 1.3; }
.integration-node > span:last-child { color: #c1d3c9; font-size: 13px; }
.node-index { color: #91e7b1; font-size: 11px; font-weight: 900; }
.flow-arrow { display: grid; place-items: center; color: #83d9a4; font-size: 24px; }
.platform-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.platform-item { display: grid; gap: 2px; padding: 13px 15px; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius-sm); background: rgba(255,255,255,.05); }
.platform-item strong { color: #d7f8e2; font-size: 13px; letter-spacing: .08em; }
.platform-item span { color: #afc7b8; font-size: 12px; }

.features-section { background: #fff; }
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.feature-card { min-width: 0; padding: 20px; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: #fff; }
.feature-icon { display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 18px; color: var(--color-brand-dark); background: var(--color-brand-soft); border-radius: 12px; font-size: 20px; font-weight: 900; }
.feature-card h3 { font-size: 16px; }
.feature-card p { margin: 8px 0 0; color: var(--color-muted); font-size: 13px; }
.steps-section { background: var(--color-surface-soft); }
.steps-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.step-card { position: relative; padding: 24px; border-top: 3px solid var(--color-brand); border-radius: 0 0 var(--radius-md) var(--radius-md); background: #fff; }
.step-number { display: block; margin-bottom: 30px; color: var(--color-brand); font-size: 13px; font-weight: 900; letter-spacing: .1em; }
.step-card p { margin: 10px 0 0; color: var(--color-muted); font-size: 14px; }

.cta-section { text-align: center; background: linear-gradient(135deg, #0a7c4c, #075b3b); color: #fff; border: 0; box-shadow: var(--shadow-lg); }
.cta-section .section-head { margin-right: auto; margin-left: auto; }
.cta-section .eyebrow { color: #9ce8b9; }
.cta-section .section-desc { color: #d6f5e1; margin-right: auto; margin-left: auto; }
.cta-actions { justify-content: center; }
.cta-section .btn-primary { color: var(--color-brand-dark); background: #fff; }
.cta-section .btn-secondary { color: #fff; border-color: rgba(255,255,255,.4); background: transparent; }

.footer { display: grid; grid-template-columns: minmax(220px, 1.3fr) 2fr; gap: 38px; padding: 46px 8px 0; }
.footer-intro p { max-width: 280px; margin: 16px 0 0; color: var(--color-muted); font-size: 13px; }
.footer-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.footer-column { display: grid; align-content: start; gap: 9px; }
.footer-column h3 { margin: 0 0 6px; font-size: 13px; }
.footer-column a { color: var(--color-muted); font-size: 13px; text-decoration: none; }
.footer-column a:hover { color: var(--color-brand-dark); }
.footer-bottom { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 14px 20px; align-items: center; padding: 20px 0 0; border-top: 1px solid var(--color-line); color: var(--color-muted); font-size: 12px; }
.footer-bottom small { margin-left: auto; }
.noscript-notice { width: min(960px, calc(100% - 32px)); margin: 16px auto; padding: 16px; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: #fff; }
.load-error { text-align: center; }

a:focus-visible, button:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }

@media (max-width: 1100px) {
  .homepage { width: min(var(--container), calc(100% - 28px)); }
  .site-header { gap: 14px; }
  .nav-link, .login-link { padding-right: 7px; padding-left: 7px; font-size: 12px; }
  .hero { gap: 28px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .menu-toggle { display: inline-flex; justify-self: end; align-items: center; min-height: 42px; padding: 8px 13px; color: var(--color-brand-dark); border: 1px solid #b9d9c8; border-radius: var(--radius-pill); background: #fff; cursor: pointer; font-size: 13px; font-weight: 800; }
  .nav-links { position: absolute; top: calc(100% + 8px); right: 0; left: 0; display: none; align-items: stretch; flex-direction: column; gap: 4px; padding: 12px; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-lg); }
  .nav-links.is-open { display: flex; }
  .nav-link, .login-link { display: block; padding: 12px; font-size: 14px; }
  .header-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 4px 0 0; padding-top: 10px; border-top: 1px solid var(--color-line); }
  .header-cta { width: 100%; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy { order: 1; }
  .hero-media { order: 2; aspect-ratio: 1.35 / 1; }
  .value-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .value-item:nth-child(3) { border-right: 0; }
  .value-item:nth-child(n + 4) { border-top: 1px solid var(--color-line); }
  .solution-grid, .agent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workspace-layout { grid-template-columns: 1fr; }
  .integration-flow { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-arrow { display: none; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 92px; }
  .homepage { width: min(100% - 20px, var(--container)); padding-top: 8px; padding-bottom: 42px; }
  .site-header { top: 6px; min-height: 62px; padding: 8px 10px 8px 12px; border-radius: 17px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 11px; font-size: 18px; }
  .brand-name { font-size: 13px; }
  .hero { padding: 30px 22px; border-radius: 22px; }
  .hero h1 { font-size: clamp(36px, 12vw, 52px); }
  .hero-subtitle { font-size: 16px; }
  .hero-actions, .cta-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .btn, .cta-actions .btn { width: 100%; }
  .hero-media { border-width: 5px; border-radius: 22px; }
  .hero-conversation { top: 5%; left: 3%; width: 54%; }
  .hero-dashboard { right: 3%; bottom: 5%; width: 58%; }
  .hero-media-caption { right: 10px; bottom: 10px; font-size: 11px; }
  .value-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .value-item { padding: 15px 13px; }
  .value-item:nth-child(3) { border-right: 1px solid var(--color-line); }
  .value-item:nth-child(even) { border-right: 0; }
  .value-item:nth-child(n + 3) { border-top: 1px solid var(--color-line); }
  .section { padding: 26px 18px; border-radius: 21px; }
  .section-head h2 { font-size: 30px; }
  .solution-grid, .agent-grid, .feature-grid, .steps-grid, .platform-list { grid-template-columns: 1fr; }
  .workspace-dashboard { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workspace-topbar { align-items: flex-start; flex-wrap: wrap; }
  .workspace-badge { margin-left: 40px; }
  .integration-flow { grid-template-columns: 1fr; }
  .integration-node { min-height: 0; }
  .footer { grid-template-columns: 1fr; gap: 28px; padding-top: 34px; }
  .footer-groups { gap: 14px; }
  .footer-bottom { display: grid; gap: 8px; }
  .footer-bottom small { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* RC1 visual direction: people lead the story, product UI supports it. */
.hero {
  grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
  min-height: 620px;
  background:
    radial-gradient(circle at 82% 18%, rgba(154, 232, 191, .42), transparent 30%),
    linear-gradient(135deg, #f1fbf5 0%, #ffffff 58%, #e5f4eb 100%);
}
.hero-media {
  min-height: 560px;
  aspect-ratio: 1.08 / 1;
}
.hero-image { object-position: 38% center; }
.hero-conversation {
  top: 5%;
  right: 4%;
  left: auto;
  width: min(230px, 38%);
}
.hero-dashboard {
  right: auto;
  bottom: 7%;
  left: 4%;
  width: min(245px, 41%);
}
.hero-media-caption { right: 4%; bottom: 3%; }
.solution-media { aspect-ratio: 1.55 / 1; margin-bottom: 16px; }
.solution-media img { object-position: center 34%; }
.agent-avatar {
  width: 52px;
  height: 52px;
  border: 3px solid #fff;
  border-radius: 18px;
  background: linear-gradient(145deg, #0b8f57, #24bd7b) !important;
  box-shadow: 0 8px 16px rgba(11, 143, 87, .18);
  font-size: 24px;
  line-height: 1;
}
.agent-image { opacity: .92; }
.workspace-visual { border: 1px solid #b9d9c7; box-shadow: 0 18px 40px rgba(22, 63, 45, .12); }
.workspace-badge { color: #fff; background: var(--color-brand-dark); }
.workspace-chart { min-height: 132px; }
.integration-flow { min-width: 0; }
.integration-node { min-height: 132px; }
.platform-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.footer-bottom:empty { display: none; }
.storefront-kicker { color: var(--color-brand); font-weight: 900; letter-spacing: .12em; }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-media { min-height: 520px; aspect-ratio: 1.35 / 1; }
  .platform-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gpchat-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .hero { padding: 24px 16px 18px; }
  .hero-media { min-height: 430px; aspect-ratio: .9 / 1; }
  .hero-image { object-position: 34% center; }
  .hero-conversation { top: 4%; right: 3%; width: 58%; }
  .hero-dashboard { bottom: 7%; left: 3%; width: 62%; }
  .hero-media-caption { right: 3%; bottom: 2%; max-width: 48%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .solution-media { aspect-ratio: 1.55 / 1; }
  .platform-list { grid-template-columns: 1fr; }
  .gpchat-product-view, .gpchat-window { min-height: 0; }
  .gpchat-product-view { padding: 46px 16px 22px; }
  .gpchat-messages { min-height: 310px; padding: 15px; }
  .gpchat-chat-action { align-items: stretch; flex-direction: column; }
  .gpchat-chat-action .btn { width: 100%; margin-left: 0; }
  .gpchat-journey { display: grid; grid-template-columns: 1fr 1fr; }
  .gpchat-journey .flow-arrow { display: none; }
}

/* RC2-002 visual polish: people lead; product UI and chat support the story. */
.hero {
  grid-template-columns: minmax(0, .48fr) minmax(0, 1.52fr);
  min-height: 650px;
}
.hero-media {
  min-height: 600px;
  aspect-ratio: 1.12 / 1;
}
.hero-image { object-position: 42% center; filter: saturate(1.05) contrast(1.02); }
.hero-dashboard {
  width: min(220px, 30%);
  padding: 11px;
  background: rgba(255,255,255,.91);
}
.hero-conversation { width: min(220px, 29%); background: rgba(255,255,255,.96); }
.hero-media-caption { background: rgba(23,49,39,.9); }
.solution-media { aspect-ratio: 1.22 / 1; margin-bottom: 14px; }
.solution-media img { object-position: center center; filter: saturate(1.08) contrast(1.02); }
.agent-image { position: relative; aspect-ratio: 1.45 / 1; overflow: hidden; border-radius: 12px; }
.agent-image img { width: 100%; height: 100%; object-fit: cover; opacity: 1; filter: saturate(1.06) contrast(1.03); }
.agent-chat-bubble { position: absolute; right: 10px; bottom: 10px; display: grid; gap: 2px; max-width: 78%; padding: 8px 10px; color: var(--color-ink); border: 1px solid rgba(255,255,255,.86); border-radius: 12px 12px 4px 12px; background: rgba(255,255,255,.94); box-shadow: 0 8px 18px rgba(22,63,45,.18); font-size: 11px; line-height: 1.35; }
.agent-chat-label { color: var(--color-brand); font-size: 9px; font-weight: 900; letter-spacing: .06em; }
.gpchat-prompt-row { display: flex; flex-wrap: wrap; gap: 7px; padding: 0 18px 12px; background: #fbfefd; }
.gpchat-prompt { padding: 5px 8px; color: #176442; border: 1px solid #b8dbc6; border-radius: var(--radius-pill); background: #effaf3; cursor: pointer; font-size: 10px; font-weight: 800; }
.gpchat-prompt:hover { background: #d9f3e3; }
.gpchat-demo-notice { margin: 0 18px 12px; padding: 8px 10px; color: #176442; border: 1px dashed #9bcdb0; border-radius: 10px; background: #effaf3; font-size: 11px; line-height: 1.45; }
.gpchat-context-note { margin: 18px 0 0; color: var(--color-muted); font-size: 12px; }
.gpchat-chat-action { flex-wrap: wrap; }
.gpchat-chat-action .btn { margin-left: 0; }
.gpchat-chat-action .btn-primary { margin-left: auto; }
.integration-node { min-height: 122px; padding: 14px; }
.integration-node strong { font-size: 16px; }
.integration-node > span:last-child { font-size: 12px; }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-media { min-height: 520px; aspect-ratio: 1.35 / 1; }
  .hero-dashboard { width: min(245px, 34%); }
  .hero-conversation { width: min(230px, 34%); }
  .agent-image { aspect-ratio: 1.7 / 1; }
}

@media (max-width: 640px) {
  .hero-media { min-height: 430px; aspect-ratio: .9 / 1; }
  .hero-image { object-position: 38% center; }
  .hero-conversation { top: 4%; right: 3%; width: 48%; }
  .hero-dashboard { right: 3%; bottom: 7%; left: 3%; width: 44%; }
  .agent-image { aspect-ratio: 1.45 / 1; }
  .agent-chat-bubble { right: 6px; bottom: 6px; max-width: 88%; font-size: 10px; }
  .gpchat-chat-action .btn-primary { margin-left: 0; }
}