:root {
  color-scheme: dark;
  --bg: #071018;
  --bg-deep: #040a10;
  --surface: rgba(14, 28, 40, .84);
  --surface-solid: #0c1924;
  --surface-raised: #112433;
  --line: rgba(144, 189, 215, .14);
  --line-strong: rgba(105, 243, 223, .26);
  --text: #eaf6f7;
  --muted: #8fa8b7;
  --faint: #5f7988;
  --cyan: #69f3df;
  --cyan-strong: #33d8c6;
  --blue: #4c83ff;
  --purple: #8f6cf4;
  --green: #4fd7a4;
  --amber: #f0b968;
  --red: #fa7187;
  --shadow: 0 28px 90px rgba(0, 0, 0, .35);
  --radius: 18px;
  --font: Inter, "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #eef5f7;
  --bg-deep: #e5eff2;
  --surface: rgba(255, 255, 255, .88);
  --surface-solid: #ffffff;
  --surface-raised: #f5fafb;
  --line: rgba(32, 77, 99, .13);
  --line-strong: rgba(21, 167, 154, .26);
  --text: #102b39;
  --muted: #587280;
  --faint: #7d929d;
  --cyan: #159f93;
  --cyan-strong: #0d8a80;
  --blue: #2d66df;
  --purple: #6d51d5;
  --shadow: 0 24px 70px rgba(28, 68, 87, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); font-family: var(--font); -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .21; background-image: linear-gradient(rgba(118, 178, 199, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(118, 178, 199, .045) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to bottom, #000 0, transparent 65%); z-index: -2; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
.ambient { position: fixed; width: 45vw; height: 45vw; border-radius: 50%; filter: blur(130px); opacity: .08; pointer-events: none; z-index: -3; }
.ambient-a { left: -20vw; top: 3vh; background: var(--cyan); }
.ambient-b { right: -20vw; top: 36vh; background: var(--blue); }
.shell-width { width: min(1340px, calc(100% - 80px)); margin-inline: auto; }
.surface[hidden], [hidden] { display: none !important; }
.official-surface.capture-functions > :not(.site-header):not(#functions),
.official-surface.capture-support > :not(.site-header):not(#support),
.official-surface.capture-download > :not(.site-header):not(#download),
.official-surface.capture-copyright > :not(.site-header):not(#copyright),
.official-surface.capture-usage-warning > :not(.site-header):not(#usage-warning) { display: none; }
.official-surface.capture-functions #functions,
.official-surface.capture-support #support,
.official-surface.capture-download #download,
.official-surface.capture-copyright #copyright,
.official-surface.capture-usage-warning #usage-warning { padding-top: 74px; }

.site-header { height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 32px; position: relative; z-index: 20; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand img { width: 40px; height: 40px; filter: drop-shadow(0 6px 18px rgba(105, 243, 223, .16)); }
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: 16px; letter-spacing: .06em; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 10px; letter-spacing: .18em; }
.site-nav { display: flex; align-items: center; justify-content: center; gap: 34px; margin-left: auto; }
.site-nav a { color: var(--muted); font-size: 14px; transition: color .18s ease; }
.site-nav a:hover { color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.icon-button { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; }
.icon-button:hover { border-color: var(--line-strong); }
.button { border: 1px solid transparent; min-height: 46px; padding: 0 20px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-weight: 700; font-size: 14px; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { background: linear-gradient(135deg, var(--cyan) 0%, #48d5e7 48%, #5a8fff 100%); color: #04131b; box-shadow: 0 14px 34px rgba(58, 203, 205, .2); }
html[data-theme="light"] .button-primary { color: #fff; }
.button-ghost { background: var(--surface); border-color: var(--line); color: var(--text); }
.button-ghost:hover { border-color: var(--line-strong); }
.button.compact { min-height: 38px; border-radius: 10px; padding-inline: 15px; font-size: 13px; }

.hero { min-height: 720px; display: grid; grid-template-columns: minmax(460px, .9fr) minmax(590px, 1.1fr); align-items: center; gap: 54px; padding-top: 38px; padding-bottom: 88px; }
.eyebrow, .section-kicker { color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .19em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.pulse-dot { width: 7px; height: 7px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 0 6px color-mix(in srgb, var(--cyan) 12%, transparent); }
.hero h1 { margin: 24px 0 24px; font-size: clamp(34px, 3vw, 48px); line-height: 1.24; letter-spacing: -.045em; font-weight: 800; }
.hero h1 span { background: linear-gradient(95deg, var(--cyan) 0%, #68c7f8 52%, #a58bff 100%); background-clip: text; -webkit-background-clip: text; color: transparent; }
.hero-lead { max-width: 650px; color: var(--muted); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.trust-row { display: flex; gap: 30px; margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--line); }
.trust-row > div { display: flex; align-items: center; gap: 10px; min-width: 0; }
.trust-icon { width: 30px; height: 30px; display: grid; place-items: center; color: var(--cyan); border: 1px solid var(--line-strong); border-radius: 9px; background: color-mix(in srgb, var(--cyan) 7%, transparent); }
.trust-row b, .trust-row small { display: block; white-space: nowrap; }
.trust-row b { font-size: 12px; }
.trust-row small { margin-top: 5px; color: var(--faint); font-size: 10px; }
.hero-product { position: relative; perspective: 1200px; }
.product-window { position: relative; overflow: visible; border: 1px solid var(--line-strong); border-radius: 18px; background: var(--surface-solid); box-shadow: var(--shadow), 0 0 100px rgba(63, 137, 187, .12); transform: rotateY(-2deg) rotateX(1deg); }
.product-window::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; box-shadow: inset 0 1px rgba(255, 255, 255, .07); pointer-events: none; }
.window-bar { height: 48px; padding: 0 14px; display: flex; align-items: center; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--surface-solid) 92%, transparent); border-radius: 18px 18px 0 0; }
.window-brand { display: flex; gap: 8px; align-items: center; font-size: 11px; font-weight: 700; }
.window-brand img { width: 22px; height: 22px; }
.window-status { margin: auto; color: var(--faint); font-size: 10px; }
.window-status i, .inline-status i, .api-health i { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-right: 7px; box-shadow: 0 0 0 4px rgba(79, 215, 164, .1); }
.window-dots { display: flex; gap: 6px; }
.window-dots span { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); opacity: .6; }
.hero-shot { display: block; width: 100%; height: 442px; object-fit: cover; object-position: center; border-radius: 0 0 18px 18px; }
html[data-theme="light"] .hero-shot { filter: brightness(.96) saturate(.9); }
.floating-card { position: absolute; z-index: 3; border: 1px solid var(--line-strong); background: color-mix(in srgb, var(--surface-solid) 94%, transparent); box-shadow: 0 18px 50px rgba(0, 0, 0, .28); backdrop-filter: blur(18px); }
.floating-card-top { top: 80px; right: -26px; width: 170px; padding: 15px; border-radius: 13px; display: grid; }
.floating-card-top span { color: var(--faint); font-size: 10px; }
.floating-card-top b { margin-top: 6px; font-size: 13px; }
.floating-card-top small { margin-top: 5px; color: var(--cyan); font-size: 10px; }
.floating-card-bottom { left: -34px; bottom: 42px; min-width: 268px; padding: 13px 16px; border-radius: 13px; display: flex; align-items: center; gap: 12px; }
.safe-mark { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: rgba(79, 215, 164, .14); color: var(--green); }
.floating-card-bottom b, .floating-card-bottom small { display: block; }
.floating-card-bottom b { font-size: 12px; }
.floating-card-bottom small { margin-top: 5px; color: var(--faint); font-size: 10px; }

.proof-strip { border-block: 1px solid var(--line); background: color-mix(in srgb, var(--surface-solid) 66%, transparent); }
.proof-inner { min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.proof-inner p { color: var(--muted); font-size: 12px; }
.proof-inner > div { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.proof-inner span { color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 8px 13px; font-size: 11px; }
.section { padding-top: 120px; padding-bottom: 120px; }
.section-heading { max-width: 780px; margin-bottom: 48px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2, .split-heading h2, .safety-copy h2, .progress-card h2 { margin: 16px 0 17px; font-size: clamp(30px, 3.2vw, 46px); line-height: 1.22; letter-spacing: -.035em; }
.section-heading p, .split-heading > p, .safety-copy > p, .progress-card p { color: var(--muted); line-height: 1.8; font-size: 15px; }
.workflow-track { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; position: relative; }
.workflow-track::before { content: ""; position: absolute; top: 43px; left: 7%; right: 7%; border-top: 1px dashed var(--line-strong); }
.workflow-card { min-height: 275px; padding: 22px 18px 19px; position: relative; border: 1px solid var(--line); border-radius: 15px; background: linear-gradient(160deg, color-mix(in srgb, var(--surface-solid) 95%, transparent), color-mix(in srgb, var(--surface-raised) 62%, transparent)); transition: transform .2s ease, border-color .2s ease; }
.workflow-card:hover, .workflow-card.active { transform: translateY(-5px); border-color: var(--line-strong); }
.workflow-card.active { box-shadow: 0 16px 44px rgba(41, 178, 174, .1); }
.step-no { position: absolute; top: 17px; right: 17px; color: var(--faint); font-size: 10px; font-variant-numeric: tabular-nums; }
.step-icon { width: 43px; height: 43px; position: relative; z-index: 1; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--surface-solid); color: var(--cyan); font-size: 18px; }
.workflow-card h3 { margin: 30px 0 10px; font-size: 16px; }
.workflow-card p { margin: 0; min-height: 82px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.workflow-card small { display: block; padding-top: 15px; border-top: 1px solid var(--line); color: var(--faint); font-size: 9px; letter-spacing: .03em; }
.feature-section { background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--surface-solid) 45%, transparent) 20%, color-mix(in srgb, var(--surface-solid) 45%, transparent) 80%, transparent); }
.split-heading { display: grid; grid-template-columns: 1.1fr .7fr; gap: 90px; align-items: end; margin-bottom: 52px; }
.split-heading > p { margin: 0 0 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature-card { position: relative; min-height: 278px; padding: 28px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); backdrop-filter: blur(14px); }
.feature-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(140deg, rgba(105, 243, 223, .035), transparent 45%); pointer-events: none; }
.feature-large { grid-column: span 2; min-height: 330px; }
.feature-top { display: flex; align-items: center; justify-content: space-between; }
.feature-tag { color: var(--cyan); font-size: 11px; font-weight: 700; }
.feature-code { color: var(--faint); font-size: 10px; }
.feature-card h3 { margin: 22px 0 13px; max-width: 620px; font-size: 21px; letter-spacing: -.02em; }
.feature-large h3 { margin-top: 30px; font-size: 28px; }
.feature-card p { position: relative; z-index: 1; max-width: 660px; color: var(--muted); line-height: 1.75; font-size: 13px; }
.feature-card a { position: absolute; left: 28px; bottom: 25px; color: var(--cyan); font-size: 12px; font-weight: 700; }
.feature-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; color: var(--cyan); background: color-mix(in srgb, var(--cyan) 8%, transparent); border: 1px solid var(--line-strong); font-size: 19px; }
.inline-status { position: absolute; left: 28px; bottom: 25px; color: var(--faint); font-size: 10px; }
.mini-chart { position: absolute; left: 28px; right: 28px; bottom: 24px; height: 100px; opacity: .85; }
.mini-chart svg { width: 100%; height: 100%; overflow: visible; }
.chart-line { fill: none; stroke: var(--cyan); stroke-width: 2; }
.chart-area { fill: url(#chartFill); }

.functions-section { position: relative; }
.function-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.function-card { min-height: 252px; padding: 22px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(155deg, color-mix(in srgb, var(--surface-solid) 92%, transparent), color-mix(in srgb, var(--surface-raised) 74%, transparent)); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.function-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 16px 42px rgba(0,0,0,.16); }
.function-head { display: flex; align-items: center; justify-content: space-between; }
.function-head span { color: var(--faint); font: 700 10px ui-monospace, Consolas, monospace; }
.function-head i { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 11px; background: color-mix(in srgb, var(--cyan) 7%, transparent); color: var(--cyan); font-style: normal; font-size: 16px; }
.function-card h3 { margin: 19px 0 9px; font-size: 18px; }
.function-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.function-card > div:last-child { margin-top: auto; padding-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.function-card > div:last-child b { padding: 6px 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--faint); font-size: 8px; font-weight: 600; }

.product-showcase { overflow: hidden; }
.showcase-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.showcase-tab { border: 1px solid var(--line); background: var(--surface); color: var(--muted); border-radius: 10px; padding: 10px 17px; cursor: pointer; }
.showcase-tab.active { color: var(--text); border-color: var(--line-strong); background: color-mix(in srgb, var(--cyan) 7%, var(--surface)); }
.showcase-stage { min-height: 585px; display: grid; grid-template-columns: 1fr 310px; gap: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--surface-solid); box-shadow: var(--shadow); }
.showcase-stage > img { width: 100%; height: 585px; object-fit: cover; object-position: center; }
.showcase-stage aside { padding: 42px 32px; border-left: 1px solid var(--line); display: flex; flex-direction: column; justify-content: center; background: linear-gradient(160deg, var(--surface-raised), var(--surface-solid)); }
.showcase-stage aside > span { color: var(--cyan); font-size: 11px; letter-spacing: .12em; }
.showcase-stage h3 { margin: 17px 0 12px; font-size: 22px; }
.showcase-stage p { color: var(--muted); font-size: 13px; line-height: 1.75; }
.showcase-original { align-self: flex-start; margin-top: 12px; }
.showcase-note { color: var(--faint); font-size: 12px; line-height: 1.7; margin-top: 14px; }
.shot-facts { display: flex; flex-direction: column; gap: 9px; margin-top: 27px; }
.shot-facts span { color: var(--muted); font-size: 11px; }
.shot-facts span::before { content: "✓"; color: var(--green); margin-right: 8px; }
.safety-section { border-block: 1px solid var(--line); background: radial-gradient(circle at 20% 50%, rgba(76, 131, 255, .08), transparent 35%), color-mix(in srgb, var(--surface-solid) 46%, transparent); }
.safety-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; }
.safety-copy > p { max-width: 560px; }
.safety-callout { margin-top: 30px; padding: 17px; display: flex; gap: 13px; border: 1px solid rgba(240, 185, 104, .2); background: rgba(240, 185, 104, .055); border-radius: 13px; }
.safety-callout > span { width: 28px; height: 28px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: rgba(240, 185, 104, .13); color: var(--amber); font-weight: 800; }
.safety-callout p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.safety-callout b { color: var(--text); }
.safety-stack { display: grid; gap: 10px; }
.safety-stack article { padding: 20px; display: grid; grid-template-columns: 40px 1fr auto; gap: 17px; align-items: center; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.safety-stack article > span { color: var(--faint); font: 700 11px ui-monospace, Consolas, monospace; }
.safety-stack b { font-size: 14px; }
.safety-stack p { margin: 6px 0 0; color: var(--muted); font-size: 11px; }
.safety-stack em { color: var(--cyan); font-size: 10px; font-style: normal; border: 1px solid var(--line-strong); border-radius: 999px; padding: 6px 9px; }
.progress-section { padding-bottom: 150px; }
.progress-card { padding: 54px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; border: 1px solid var(--line-strong); border-radius: 23px; background: linear-gradient(140deg, rgba(105, 243, 223, .075), rgba(76, 131, 255, .04) 50%, var(--surface)); box-shadow: var(--shadow); }
.progress-card > .button { justify-self: start; }
.progress-steps { display: grid; gap: 13px; }
.progress-steps span { display: flex; align-items: center; gap: 11px; color: var(--faint); font-size: 12px; }
.progress-steps i { width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-size: 10px; font-style: normal; }
.progress-steps .done { color: var(--muted); }
.progress-steps .done i { color: var(--green); border-color: rgba(79, 215, 164, .3); }
.progress-steps .current { color: var(--text); font-weight: 700; }
.progress-steps .current i { color: #06151c; border-color: var(--cyan); background: var(--cyan); }
.download-section { padding-top: 110px; padding-bottom: 90px; }
.download-card { min-height: 480px; display: grid; grid-template-columns: 1.35fr .65fr; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 23px; background: linear-gradient(135deg, rgba(105,243,223,.075), rgba(76,131,255,.045) 52%, var(--surface)); box-shadow: var(--shadow); }
.download-copy { padding: 52px 56px; }
.download-copy h2 { margin: 16px 0 16px; font-size: clamp(34px,3.2vw,48px); line-height: 1.18; letter-spacing: -.04em; }
.download-copy > p { max-width: 720px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.download-actions { margin-top: 28px; display: flex; align-items: center; gap: 18px; }
.download-button:disabled { cursor: not-allowed; filter: saturate(.55); opacity: .72; transform: none; box-shadow: none; }
.download-actions > span b, .download-actions > span small { display: block; }
.download-actions > span b { font-size: 11px; }
.download-actions > span small { margin-top: 5px; color: var(--faint); font-size: 9px; }
.download-meta { margin-top: 36px; padding-top: 22px; display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; border-top: 1px solid var(--line); }
.download-meta small, .download-meta b { display: block; }
.download-meta small { color: var(--faint); font-size: 9px; }
.download-meta b { margin-top: 8px; font-size: 11px; }
.download-assurance { padding: 44px 38px; position: relative; border-left: 1px solid var(--line); background: color-mix(in srgb,var(--surface-solid) 72%,transparent); }
.download-assurance::after { content: ""; width: 230px; height: 230px; position: absolute; right: -115px; bottom: -115px; border: 1px solid var(--line-strong); border-radius: 50%; box-shadow: 0 0 0 45px rgba(105,243,223,.018),0 0 0 90px rgba(76,131,255,.014); }
.windows-mark { display: flex; align-items: center; gap: 12px; }
.windows-mark > span { width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 14px; background: color-mix(in srgb,var(--cyan) 8%,transparent); color: var(--cyan); font-size: 24px; }
.windows-mark small { color: var(--muted); font-size: 9px; line-height: 1.35; letter-spacing: .14em; }
.download-assurance h3 { margin: 30px 0 17px; font-size: 18px; }
.download-assurance ul { margin: 0; padding: 0; display: grid; gap: 13px; list-style: none; }
.download-assurance li { color: var(--muted); font-size: 10px; }
.download-assurance li span { color: var(--green); margin-right: 9px; }
.download-assurance > p { margin: 25px 0 0; padding: 13px; position: relative; z-index: 1; border: 1px solid rgba(240,185,104,.18); border-radius: 10px; background: rgba(240,185,104,.05); color: var(--amber); font-size: 9px; line-height: 1.55; }
.support-section { padding-top: 115px; }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.support-card { min-height: 180px; padding: 24px; display: grid; grid-template-columns: 46px 1fr; grid-template-rows: 1fr auto; gap: 0 15px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.support-icon { grid-row: 1 / 3; width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 13px; background: color-mix(in srgb, var(--cyan) 7%, transparent); color: var(--cyan); font-size: 13px; font-weight: 800; }
.support-card small { color: var(--faint); font-size: 9px; }
.support-card h3 { margin: 7px 0 8px; font-size: 16px; }
.support-card p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.6; }
.copy-contact { align-self: end; justify-self: start; margin-top: 18px; padding: 0; border: 0; background: none; color: var(--cyan); cursor: pointer; font-size: 10px; font-weight: 700; }
.learning-note { margin-top: 14px; min-height: 78px; padding: 16px 20px; display: grid; grid-template-columns: 36px 1fr auto; gap: 14px; align-items: center; border: 1px solid var(--line); border-radius: 14px; background: color-mix(in srgb, var(--surface-solid) 72%, transparent); }
.learning-note > span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--surface-raised); color: var(--cyan); }
.learning-note b { font-size: 12px; }
.learning-note p { margin: 5px 0 0; color: var(--muted); font-size: 9px; }
.learning-note em { color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 7px 10px; font-size: 9px; font-style: normal; }
.standalone-info-section { border-top: 1px solid var(--line); }
.copyright-section { background: color-mix(in srgb,var(--surface-solid) 44%,transparent); }
.usage-warning-section { background: linear-gradient(180deg,color-mix(in srgb,var(--surface-solid) 50%,transparent),transparent); }
.standalone-info-card { min-height: 230px; padding: 34px; display: grid; grid-template-columns: 64px 1fr 1.25fr; gap: 24px; align-items: center; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.standalone-symbol { width: 58px; height: 58px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 16px; color: var(--purple); background: color-mix(in srgb,var(--purple) 8%,transparent); font-size: 24px; font-weight: 800; }
.copyright-panel h3 { margin: 0 0 11px; font-size: 19px; }
.copyright-panel p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }
.rights-list { display: grid; gap: 10px; }
.rights-list span { min-height: 42px; padding: 10px 13px; display: flex; align-items: center; gap: 11px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); font-size: 10px; }
.rights-list i { color: var(--purple); font: 700 9px ui-monospace,Consolas,monospace; font-style: normal; }
.warning-list-panel { padding: 15px; display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; border: 1px solid rgba(240,185,104,.22); border-radius: 18px; background: linear-gradient(145deg,rgba(240,185,104,.045),var(--surface)); }
.warning-list-panel article { min-height: 92px; padding: 17px; display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; border: 1px solid var(--line); border-radius: 11px; background: color-mix(in srgb,var(--surface-solid) 70%,transparent); }
.warning-list-panel article > span { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 9px; color: var(--amber); background: rgba(240,185,104,.09); font: 700 9px ui-monospace,Consolas,monospace; }
.warning-list-panel b { font-size: 11px; }
.warning-list-panel p { margin: 6px 0 0; color: var(--muted); font-size: 9px; line-height: 1.6; }
.site-footer { border-top: 1px solid var(--line); background: var(--bg-deep); }
.footer-main { min-height: 190px; display: grid; grid-template-columns: auto 1fr auto; gap: 50px; align-items: center; }
.footer-main > p { max-width: 430px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.footer-links { display: grid; grid-template-columns: repeat(2, auto); gap: 15px 26px; }
.footer-links a { color: var(--muted); font-size: 12px; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border-top: 1px solid var(--line); color: var(--faint); font-size: 10px; }

@media (max-width: 1180px) {
  .shell-width { width: min(100% - 44px, 1100px); }
  .site-nav { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 70px; }
  .hero-copy { max-width: 760px; }
  .hero-product { width: min(900px, 96%); margin-inline: auto; }
  .workflow-track { grid-template-columns: repeat(3, 1fr); }
  .workflow-track::before { display: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .function-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-large { grid-column: span 2; }
  .safety-layout { gap: 45px; }
}

@media (max-width: 820px) {
  .shell-width { width: calc(100% - 32px); }
  .site-header { height: 72px; }
  .brand-copy small { display: none; }
  .header-actions .theme-toggle { display: none; }
  .hero { padding-top: 42px; padding-bottom: 68px; gap: 44px; }
  .hero h1 { font-size: 39px; }
  .hero-lead { font-size: 15px; }
  .trust-row { display: grid; grid-template-columns: 1fr; gap: 14px; }
  .hero-shot { height: auto; min-height: 270px; }
  .floating-card-top { right: -7px; top: 68px; }
  .floating-card-bottom { left: -7px; bottom: 18px; }
  .proof-inner { align-items: flex-start; flex-direction: column; padding-block: 22px; }
  .section { padding-block: 80px; }
  .workflow-track { grid-template-columns: 1fr 1fr; }
  .split-heading, .safety-layout, .progress-card { grid-template-columns: 1fr; gap: 28px; }
  .download-card { grid-template-columns: 1fr; }
  .download-assurance { border-left: 0; border-top: 1px solid var(--line); }
  .feature-grid { grid-template-columns: 1fr; }
  .function-grid, .support-grid { grid-template-columns: 1fr; }
  .standalone-info-card { grid-template-columns: 58px 1fr; }
  .rights-list { grid-column: 1 / -1; }
  .warning-list-panel { grid-template-columns: 1fr; }
  .feature-large { grid-column: auto; }
  .showcase-stage { grid-template-columns: 1fr; min-height: auto; }
  .showcase-stage > img { height: auto; min-height: 310px; }
  .showcase-stage aside { border-left: 0; border-top: 1px solid var(--line); }
  .footer-main { grid-template-columns: 1fr; gap: 20px; padding-block: 40px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; padding-block: 20px; }
}

@media (max-width: 520px) {
  .header-actions .button { display: none; }
  .hero h1 { font-size: 34px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .product-window { transform: none; }
  .window-status, .window-dots, .floating-card-top { display: none; }
  .floating-card-bottom { position: static; margin: 10px; min-width: 0; box-shadow: none; }
  .hero-shot { border-radius: 0; min-height: 230px; }
  .workflow-track { grid-template-columns: 1fr; }
  .workflow-card { min-height: 230px; }
  .feature-card { min-height: 290px; }
  .showcase-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; }
  .showcase-tab { flex: 0 0 auto; }
  .showcase-stage > img { min-height: 210px; }
  .progress-card { padding: 28px 22px; }
  .download-copy { padding: 34px 24px; }
  .download-actions { align-items: stretch; flex-direction: column; }
  .download-actions .button { width: 100%; }
  .download-meta { grid-template-columns: repeat(2,1fr); }
  .download-assurance { padding: 32px 24px; }
  .learning-note { grid-template-columns: 34px 1fr; }
  .learning-note em { grid-column: 2; justify-self: start; }
  .standalone-info-card { padding: 24px; }
  .safety-stack article { grid-template-columns: 32px 1fr; }
  .safety-stack em { grid-column: 2; justify-self: start; }
}

/* 真实业务区域保持比例；正式图片由构建器从已核对来源复制。 */
.product-window { transform: none; }
.hero-shot, .showcase-stage > img { width: 100%; height: auto; min-height: 0; object-fit: contain; display: block; }
.showcase-stage { min-height: 0; align-items: center; }
.showcase-stage aside { align-self: stretch; min-height: 340px; }
.button[aria-disabled="true"] { cursor: not-allowed; opacity: .64; filter: saturate(.5); transform: none; }
.release-status { overflow-wrap: anywhere; font: 12px/1.8 ui-monospace, Consolas, monospace; color: var(--muted); }
.learning-note a { color: var(--cyan); font-size: 12px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
@media (max-width: 820px) { .header-actions .theme-toggle { display: grid; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
.legal-document { max-width: 920px; padding-top: 40px; padding-bottom: 56px; line-height: 1.9; overflow-wrap: anywhere; }
.legal-document > a, .legal-document a { color: var(--cyan); }
.legal-document header { margin: 32px 0 24px; }
.legal-document h1 { font-size: clamp(28px, 5vw, 40px); }
.legal-document header p { color: var(--muted); margin-top: 8px; }
.legal-document section { margin-top: 30px; }
.legal-document h2 { font-size: 20px; margin-bottom: 10px; }
.legal-document p { color: var(--muted); }
.legal-document footer { border-top: 1px solid var(--line); margin-top: 36px; padding-top: 24px; }