:root {
  --ink: #0B1220;
  --ink-2: #111A2E;
  --ink-3: #1A2540;
  --line-dark: rgba(255, 255, 255, .09);
  --text: #0F172A;
  --text-2: #475569;
  --text-3: #64748B;
  --bg: #FFFFFF;
  --bg-tint: #F4F6FA;
  --line: #E2E8F0;
  --teal: #2DD4BF;
  --teal-d: #0F9D8C;
  --amber: #F5B544;
  --red: #F87171;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .06);
  --shadow-lg: 0 24px 60px rgba(2, 6, 23, .35);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 750; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 650; }
p { margin: 0 0 1em; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 4px; }

.container { width: min(1180px, 100% - 40px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -48px; z-index: 100; background: var(--teal); color: var(--ink); padding: 8px 14px; border-radius: var(--radius-sm); }
.skip-link:focus { top: 12px; }
.muted { color: var(--text-2); }
.muted-light { color: #A9B4C8; }
.icon { width: 1.1em; height: 1.1em; flex: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; padding: .8em 1.4em; border-radius: 999px; border: 1px solid transparent; font-weight: 600; font-size: .98rem; line-height: 1.2; transition: transform .15s, background .2s, border-color .2s, color .2s; white-space: nowrap; }
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: .6em 1.1em; font-size: .9rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--teal); color: var(--ink); }
.btn-primary:hover { background: #5EEAD4; }
.btn-ghost { border-color: var(--line); background: #fff; color: var(--text); }
.btn-ghost:hover { border-color: var(--teal-d); color: var(--teal-d); }
.btn-ghost-light { border-color: rgba(255, 255, 255, .25); color: #fff; background: transparent; }
.btn-ghost-light:hover { border-color: var(--teal); color: var(--teal); }
.btn[disabled] { opacity: .6; cursor: progress; transform: none; }
.link { display: inline-flex; align-items: center; gap: .35em; color: var(--teal-d); font-weight: 600; font-size: .92rem; }
.link .icon { transition: transform .2s; }
a:hover .link .icon, .link:hover .icon { transform: translateX(3px); }
.link-btn { background: none; border: 0; padding: 0; color: var(--teal-d); font-weight: 600; font-size: .92rem; }
.link-btn:hover { text-decoration: underline; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; height: var(--header-h); background: rgba(11, 18, 32, .82); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid var(--line-dark); color: #E2E8F0; }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 1.12rem; color: #fff; letter-spacing: -.01em; }
.brand b { color: var(--teal); font-weight: 700; margin-left: 2px; }
.logo-mark { width: 32px; height: 32px; border-radius: 8px; box-shadow: 0 0 0 1px rgba(255, 255, 255, .12); }
.nav { display: flex; align-items: center; gap: 26px; font-size: .95rem; }
.nav a { color: #CBD5E1; transition: color .2s; }
.nav a:hover, .nav a[aria-current="page"] { color: #fff; }
.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--teal); padding-bottom: 2px; }
.lang-switch { border: 1px solid rgba(255, 255, 255, .2); border-radius: 999px; padding: 3px 12px; font-size: .85rem; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; padding: 8px; }
.nav-toggle .icon { width: 26px; height: 26px; }

/* Sections */
.section { padding: 104px 0; }
.section-tight { padding: 56px 0 96px; }
.section-tint { background: var(--bg-tint); }
.section-dark { background: var(--ink); color: #E2E8F0; }
.section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head p { font-size: 1.08rem; }
.section-head-row { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.eyebrow { display: inline-block; font-family: var(--mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--teal-d); margin-bottom: 14px; font-weight: 600; }
.eyebrow-light { color: var(--teal); }

/* Hero */
.hero { position: relative; overflow: hidden; background: radial-gradient(1000px 520px at 82% 18%, rgba(45, 212, 191, .16), transparent 60%), radial-gradient(800px 480px at 8% 92%, rgba(245, 181, 68, .10), transparent 60%), var(--ink); color: #E2E8F0; padding: 88px 0 104px; }
.hero-grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; }
.grad { background: linear-gradient(90deg, var(--teal), #A7F3D0 55%, var(--amber)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead, .page-hero .lead { font-size: 1.15rem; color: #B6C2D6; max-width: 600px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 40px; }
.hero-proof { display: flex; flex-direction: column; gap: 10px; font-size: .85rem; color: #8B98B0; }
.hero-proof ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-proof li { display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border: 1px solid var(--line-dark); border-radius: 999px; color: #D5DEEB; background: rgba(255, 255, 255, .03); }
.hero-proof .icon { color: var(--teal); }

/* Console */
.console { background: linear-gradient(180deg, #121C31, #0E1628); border: 1px solid rgba(255, 255, 255, .1); border-radius: 18px; box-shadow: var(--shadow-lg), 0 0 0 1px rgba(45, 212, 191, .05); overflow: hidden; font-size: .9rem; }
.console-bar { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line-dark); font-family: var(--mono); font-size: .78rem; color: #8B98B0; }
.dots { display: inline-flex; gap: 6px; }
.dots i { width: 9px; height: 9px; border-radius: 50%; background: #334155; }
.console-title { flex: 1; }
.live { display: inline-flex; align-items: center; gap: 6px; color: var(--teal); }
.live i { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); animation: pulse 1.6s infinite; }
.console-chart { width: 100%; height: 110px; padding: 14px 16px 0; }
.console-chart .band { fill: rgba(45, 212, 191, .08); }
.console-chart .line { fill: none; stroke: var(--teal); stroke-width: 2; stroke-dasharray: 460; stroke-dashoffset: 460; animation: draw 2.6s .3s ease-out forwards; vector-effect: non-scaling-stroke; }
.console-chart .pt { fill: var(--amber); opacity: 0; animation: pop .4s 2.4s forwards, pulse 1.6s 2.8s infinite; }
.console-rows { list-style: none; margin: 0; padding: 10px 12px 14px; }
.console-rows li { display: grid; grid-template-columns: 46px 1fr 12px; align-items: center; gap: 10px; padding: 9px 8px; border-radius: 8px; color: #CBD5E1; opacity: 0; transform: translateY(6px); animation: rise .5s var(--d) forwards; }
.console-rows li + li { border-top: 1px dashed rgba(255, 255, 255, .06); }
.console-rows .k { font-family: var(--mono); font-size: .72rem; color: #64748B; letter-spacing: .06em; }
.console-rows .st { width: 9px; height: 9px; border-radius: 50%; background: var(--teal); }
.console-rows .s-warn .st { background: var(--amber); }
.console-rows .s-act { background: rgba(45, 212, 191, .07); color: #fff; }
.console-rows .s-act .st { background: transparent; border: 2px solid var(--teal); animation: pulse 1.6s infinite; }

/* Industries */
.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.industry-card { display: flex; flex-direction: column; padding: 28px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border-color .2s, box-shadow .2s, transform .2s; }
.industry-card:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-3px); }
.industry-card p { color: var(--text-2); flex: 1; }
.industry-icon { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, rgba(45, 212, 191, .16), rgba(245, 181, 68, .14)); color: var(--teal-d); margin-bottom: 18px; flex: none; }
.industry-icon .icon { width: 24px; height: 24px; }
.industry-icon.sm { width: 40px; height: 40px; margin: 0; }
.industry-icon.sm .icon { width: 20px; height: 20px; }

/* Platform */
.layers { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 16px; align-items: stretch; }
.layer { position: relative; padding: 30px 26px; border-radius: var(--radius); background: var(--ink-2); border: 1px solid var(--line-dark); }
.layer p { color: #A9B4C8; }
.layer-num { font-family: var(--mono); font-size: .8rem; color: var(--teal); }
.layer-arrow { display: grid; place-items: center; color: #3B4A66; }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: .78rem; padding: 4px 10px; border-radius: 999px; background: var(--bg-tint); color: var(--text-2); border: 1px solid var(--line); }
.chips-dark li { background: rgba(255, 255, 255, .04); border-color: var(--line-dark); color: #CBD5E1; }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 64px; padding-top: 48px; border-top: 1px solid var(--line-dark); }
.principle .icon { width: 26px; height: 26px; color: var(--teal); margin-bottom: 14px; }
.principle p { color: #A9B4C8; font-size: .95rem; }

/* Demo */
.demo-wrap { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.demo-copy { position: sticky; top: calc(var(--header-h) + 40px); }
.note { font-size: .82rem; color: var(--text-3); font-style: italic; }
.demo-panel { background: var(--bg-tint); border: 1px solid var(--line); border-radius: 18px; padding: 24px; display: flex; flex-direction: column; gap: 16px; min-height: 560px; }
.msg { border-radius: 14px; padding: 16px 18px; }
.msg-user { align-self: flex-end; max-width: 85%; background: var(--ink); color: #fff; border-bottom-right-radius: 4px; }
.msg-agent { background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 4px; box-shadow: var(--shadow); }
.answer { font-weight: 600; }
.demo-steps { list-style: none; margin: 0; padding: 0 4px; display: grid; gap: 8px; font-size: .9rem; color: var(--text-2); }
.demo-steps li { display: flex; gap: 10px; align-items: flex-start; }
.demo-steps .icon { color: var(--teal-d); margin-top: 3px; }
.mini-title { font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); margin-bottom: 10px; }
.bars { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.bars li { display: grid; grid-template-columns: minmax(120px, 34%) 1fr 40px; gap: 12px; align-items: center; font-size: .86rem; }
.bar-track { height: 9px; border-radius: 999px; background: #EEF2F7; overflow: hidden; }
.bar-fill { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--teal-d), var(--teal)); transition: width 1s cubic-bezier(.2, .8, .2, 1); }
.bars li:first-child .bar-fill { background: linear-gradient(90deg, #E39B1B, var(--amber)); }
.is-shown .bar-fill { width: var(--w); }
.bar-val { font-family: var(--mono); font-size: .8rem; color: var(--text-2); text-align: right; }
.rec-list { margin: 0 0 14px; padding-left: 1.2em; }
.rec-list li { margin-bottom: 4px; }
.rec-foot { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; font-size: .8rem; }
.pill-warn { padding: 4px 10px; border-radius: 999px; background: #FEF3C7; color: #92400E; font-weight: 600; }
.sources { color: var(--text-3); }
.js [data-seq] { opacity: 0; transform: translateY(8px); transition: opacity .45s, transform .45s; }
.js [data-seq].is-shown { opacity: 1; transform: none; }
html:not(.js) .bar-fill { width: var(--w); }

/* Cases (home cards) */
.case-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.case-card { grid-column: span 2; display: flex; flex-direction: column; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .2s, box-shadow .2s, transform .2s; }
.case-card:nth-child(4), .case-card:nth-child(5) { grid-column: span 3; }
.case-card:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-3px); }
.case-card p { color: var(--text-2); flex: 1; }
.tag { display: inline-block; font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; color: var(--teal-d); margin-bottom: 10px; }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.step { position: relative; padding: 28px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
.step p { color: var(--text-2); font-size: .95rem; margin: 0; }
.step-num { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--ink); color: var(--teal); font-family: var(--mono); font-weight: 700; margin-bottom: 18px; }
.step:not(:last-child)::after { content: ""; position: absolute; top: 46px; right: -21px; width: 22px; height: 1px; background: var(--line); }

/* FAQ */
.faq-wrap { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 36px 20px 0; font-weight: 600; font-size: 1.04rem; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; font-weight: 400; color: var(--teal-d); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--text-2); padding-right: 36px; }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--ink) 0%, #12263A 60%, #0F3B3A 100%); color: #fff; padding: 72px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: .3em; }
.cta-band p { color: #B6C2D6; margin: 0; max-width: 640px; }

/* Page hero */
.page-hero { background: radial-gradient(900px 400px at 85% 0%, rgba(45, 212, 191, .14), transparent 60%), var(--ink); color: #E2E8F0; padding: 80px 0 72px; }
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4.2vw, 3rem); max-width: 820px; }
.page-hero-full { min-height: calc(100vh - var(--header-h) - 200px); display: flex; align-items: center; }

/* Filters / catalog */
.filters { display: grid; gap: 14px; margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filter-label { width: 72px; font-size: .82rem; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em; }
.filter { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--text-2); font-size: .9rem; transition: all .15s; }
.filter:hover { border-color: var(--teal-d); color: var(--text); }
.filter.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.filter.is-active .icon { color: var(--teal); }
.filter-meta { display: flex; gap: 18px; align-items: center; font-size: .9rem; color: var(--text-3); }
.agent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.agent-card { display: flex; flex-direction: column; gap: 4px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border-color .2s, box-shadow .2s; }
.agent-card:hover { border-color: var(--teal); box-shadow: var(--shadow); }
.agent-card[hidden] { display: none; }
.agent-card p { color: var(--text-2); font-size: .95rem; flex: 1; }
.agent-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: .74rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: #CCFBF1; color: #0F766E; }
.badge .icon { width: .95em; height: .95em; }
.agent-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.agent-actions .link-btn:only-child { margin-left: auto; }
.empty { text-align: center; padding: 48px 0; color: var(--text-2); }

/* Case pages */
.tabs { margin-bottom: 36px; }
.case { padding: 44px; border: 1px solid var(--line); border-radius: 18px; background: #fff; margin-bottom: 28px; scroll-margin-top: calc(var(--header-h) + 20px); }
.case[hidden] { display: none; }
.case:target { border-color: var(--teal); box-shadow: 0 0 0 4px rgba(45, 212, 191, .15); }
.case-head { display: flex; gap: 20px; align-items: flex-start; }
.case-head .industry-icon { margin: 4px 0 0; }
.case-head h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin-bottom: .3em; }
.case-client { color: var(--text-3); font-size: .95rem; }
.case-client b { color: var(--text-2); font-weight: 600; }
.case-summary { font-size: 1.12rem; color: var(--text); padding: 18px 22px; border-left: 3px solid var(--teal); background: var(--bg-tint); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 20px 0 32px; }
.case-cols, .case-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 28px; }
.case h3 { font-size: .82rem; font-family: var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); margin-bottom: 14px; }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.ticks li { display: flex; gap: 10px; color: var(--text-2); }
.ticks .icon { color: var(--teal-d); margin-top: 4px; }
.outcomes { padding: 22px 24px; border-radius: var(--radius); background: linear-gradient(135deg, rgba(45, 212, 191, .10), rgba(245, 181, 68, .08)); }
.outcomes .ticks li { color: var(--text); font-weight: 500; }

/* Footer */
.site-footer { background: #070C17; color: #94A3B8; padding: 64px 0 28px; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 40px; }
.site-footer h4 { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 16px; }
.site-footer a:not(.brand) { display: block; padding: 3px 0; color: #94A3B8; }
.site-footer a:not(.brand):hover { color: var(--teal); }
.site-footer .muted { color: #7C8AA3; margin-top: 14px; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line-dark); font-size: .84rem; color: #64748B; }
.footer-bottom a { display: inline !important; }

/* Modal & form */
.modal { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(2, 6, 23, .62); backdrop-filter: blur(4px); animation: fade .2s; }
.modal-panel { position: relative; width: min(560px, 100%); max-height: calc(100vh - 40px); overflow: auto; background: #fff; border-radius: 18px; padding: 36px; box-shadow: var(--shadow-lg); animation: rise .25s; }
.modal-panel h2 { font-size: 1.6rem; }
.modal-close { position: absolute; top: 14px; right: 14px; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; border: 0; background: var(--bg-tint); color: var(--text-2); }
.modal-close:hover { background: var(--line); }
.form { display: grid; gap: 14px; margin-top: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form label { display: grid; gap: 6px; font-size: .86rem; font-weight: 600; color: var(--text); }
.form .opt { font-weight: 400; color: var(--text-3); }
.form input, .form select, .form textarea { font: inherit; font-size: .95rem; font-weight: 400; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; color: var(--text); width: 100%; }
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--teal-d); box-shadow: 0 0 0 3px rgba(45, 212, 191, .2); }
.form .is-invalid { border-color: var(--red); }
.form .hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-error { color: #B91C1C; font-size: .9rem; margin: 0; }
.form-success { text-align: center; padding: 24px 0 8px; }
.success-icon { width: 64px; height: 64px; margin: 0 auto 18px; display: grid; place-items: center; border-radius: 50%; background: #CCFBF1; color: #0F766E; }
.success-icon .icon { width: 30px; height: 30px; }
body.modal-open { overflow: hidden; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s, transform .6s; }
.js .reveal.is-in { opacity: 1; transform: none; }

@keyframes pulse { 50% { opacity: .35; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { to { opacity: 1; } }
@keyframes rise { to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } }

/* Responsive */
@media (max-width: 1080px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .layers { grid-template-columns: 1fr; }
  .layer-arrow { transform: rotate(90deg); height: 20px; }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .agent-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .case-card, .case-card:nth-child(4), .case-card:nth-child(5) { grid-column: span 1; }
  .case-card:last-child { grid-column: span 2; }
}
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav { position: fixed; top: var(--header-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 20px 24px; background: var(--ink); border-bottom: 1px solid var(--line-dark); transform: translateY(-8px); opacity: 0; visibility: hidden; transition: all .2s; }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 14px 4px; border-bottom: 1px solid var(--line-dark); }
  .nav a[aria-current="page"] { box-shadow: none; color: var(--teal); }
  .nav .lang-switch { border: 0; border-radius: 0; padding: 14px 4px; font-size: .95rem; }
  .nav .btn { margin-top: 16px; }
  .hero-inner, .demo-wrap, .faq-wrap { grid-template-columns: 1fr; }
  .demo-copy { position: static; }
  .hero { padding: 64px 0 80px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .case-cols, .case-bottom { grid-template-columns: 1fr; gap: 28px; }
  .case { padding: 28px 22px; }
}
@media (max-width: 600px) {
  .section { padding: 72px 0; }
  .industry-grid, .principles, .steps, .agent-grid, .case-grid { grid-template-columns: 1fr; }
  .case-card:last-child { grid-column: span 1; }
  .form-row { grid-template-columns: 1fr; }
  .modal-panel { padding: 28px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .bars li { grid-template-columns: 1fr 40px; }
  .bar-label { grid-column: 1 / -1; }
  .filter-label { width: 100%; }
  .case-head { flex-direction: column; gap: 12px; }
  .demo-panel { min-height: 0; padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .console-chart .line { stroke-dashoffset: 0; }
}