:root {
  --bg: #070b16;
  --bg-soft: #0b1120;
  --panel: #0f1729;
  --panel-2: #131d33;
  --line: #24304a;
  --line-soft: #19233a;
  --text: #f4f7ff;
  --muted: #98a6c2;
  --blue: #4d8dff;
  --blue-strong: #2f6ff2;
  --cyan: #3dd9d0;
  --green: #31d69b;
  --orange: #ffab45;
  --red: #ff6376;
  --nav-height: 72px;
  --radius: 18px;
  --shadow: 0 28px 70px rgba(0, 0, 0, .34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
svg { width: 1.1em; height: 1.1em; stroke-width: 1.8; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.section-pad { padding: 112px 0; }
.section-alt { background: var(--bg-soft); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; padding: 10px 14px; transform: translateY(-150%); background: #fff; color: #000; border-radius: 6px; }
.skip-link:focus { transform: none; }

.site-header { position: sticky; z-index: 100; top: 0; height: var(--nav-height); background: rgba(7, 11, 22, .94); border-bottom: 1px solid var(--line-soft); backdrop-filter: blur(16px); }
.nav-wrap { height: 100%; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.brand-mark { display: grid; width: 38px; height: 38px; place-items: center; overflow: hidden; background: #edf4fa; border: 1px solid #3b4a64; border-radius: 11px; box-shadow: 0 0 24px rgba(61, 217, 208, .14); }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand-name { font-size: 20px; }
.main-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.main-nav a { color: var(--muted); font-size: 14px; transition: color .2s ease; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--text); }
.nav-toggle { display: none; margin-left: auto; padding: 8px; border: 0; background: transparent; }

.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 9px; padding: 0 20px; border: 1px solid transparent; border-radius: 10px; font-weight: 700; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid rgba(77, 141, 255, .48); outline-offset: 3px; }
.button-primary { color: #fff; background: var(--blue-strong); box-shadow: 0 14px 32px rgba(47, 111, 242, .24); }
.button-primary:hover { background: var(--blue); }
.button-secondary { border-color: var(--line); background: #0c1425; color: #dfe7fa; }
.button-secondary:hover { border-color: #3a4b70; background: #111b30; }
.button-sm { min-height: 40px; padding: 0 15px; font-size: 14px; }
.button-large { min-width: 210px; min-height: 56px; }

.hero { position: relative; overflow: hidden; min-height: 760px; display: grid; align-items: center; border-bottom: 1px solid var(--line-soft); }
.hero::before { content: ""; position: absolute; width: 540px; height: 540px; left: -360px; top: 40px; border: 1px solid #142545; border-radius: 50%; box-shadow: 0 0 0 85px rgba(20, 37, 69, .18), 0 0 0 170px rgba(20, 37, 69, .11); }
.hero::after { content: ""; position: absolute; right: -120px; bottom: -300px; width: 620px; height: 620px; border: 1px solid #173a57; border-radius: 50%; box-shadow: 0 0 0 95px rgba(14, 48, 74, .12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .92fr 1.28fr; align-items: center; gap: 64px; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--cyan); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero h1 { max-width: 620px; margin: 22px 0 24px; font-size: clamp(46px, 5.2vw, 72px); line-height: 1.08; letter-spacing: -.055em; }
.hero-lead { max-width: 620px; margin: 0; color: #b2bfd7; font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 28px; color: #8190ad; font-size: 13px; }
.hero-notes span { display: inline-flex; align-items: center; gap: 7px; }
.hero-notes svg { color: var(--blue); }

.product-visual { position: relative; min-width: 0; }
.app-window { overflow: hidden; width: 760px; max-width: 100%; margin-left: auto; border: 1px solid #2b3958; border-radius: 16px; background: #0b1221; box-shadow: var(--shadow); transform: perspective(1200px) rotateY(-2deg) rotateX(1deg); }
.app-topbar { height: 46px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 14px; background: #0d1424; border-bottom: 1px solid #222e46; font-size: 12px; }
.window-dots { display: flex; gap: 6px; }
.window-dots span { width: 7px; height: 7px; border-radius: 50%; background: #33415f; }
.app-brand { display: flex; align-items: center; gap: 7px; font-weight: 800; }
.mini-mark { display: grid; place-items: center; width: 22px; height: 22px; overflow: hidden; border: 1px solid #415273; border-radius: 7px; background: #edf4fa; }
.mini-mark img { width: 100%; height: 100%; object-fit: cover; }
.quota-mini { justify-self: end; display: flex; gap: 9px; align-items: center; color: #8290ad; }
.quota-mini b { color: var(--blue); }
.app-layout { display: grid; grid-template-columns: 52px 178px minmax(268px, 1fr) 190px; height: 468px; }
.app-sidebar { display: flex; flex-direction: column; align-items: center; gap: 14px; padding-top: 13px; background: #0b1020; border-right: 1px solid #1d2940; }
.side-logo { display: grid; place-items: center; width: 28px; height: 28px; margin-bottom: 4px; overflow: hidden; border: 1px solid #354663; border-radius: 8px; background: #edf4fa; }
.side-logo img { width: 100%; height: 100%; object-fit: cover; }
.side-icon { display: grid; place-items: center; width: 32px; height: 32px; color: #61708d; border-radius: 8px; }
.side-icon.active { color: #fff; background: #244fc0; }
.store-column { background: #0d1424; border-right: 1px solid #1d2940; }
.column-title { display: flex; align-items: baseline; justify-content: space-between; height: 54px; padding: 16px 14px; font-size: 13px; font-weight: 800; border-bottom: 1px solid #1d2940; }
.column-title span { color: #667590; font-size: 9px; font-weight: 500; }
.store-item { display: grid; grid-template-columns: 28px 1fr 26px; gap: 9px; align-items: center; padding: 12px 10px; color: #c7d0e2; border-left: 2px solid transparent; }
.store-item.active { background: #151f35; border-left-color: var(--blue); }
.store-item span { min-width: 0; overflow: hidden; font-size: 11px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.store-item small { display: block; margin-top: 2px; color: #67758f; font-size: 8px; font-weight: 500; }
.store-item em { padding: 3px 5px; border-radius: 7px; background: rgba(49, 214, 155, .12); color: var(--green); font-size: 8px; font-style: normal; text-align: center; }
.platform-badge { display: grid; place-items: center; width: 30px; height: 30px; flex: 0 0 auto; border-radius: 8px; color: #fff; font-size: 14px; font-style: normal; }
.pdd { background: #ef3d2d; }.dou { background: #15161d; }.ks { background: #ff6b14; }.wx { background: #08b76a; }.jd { background: #df2f2f; }
.conversation-column { display: flex; min-width: 0; flex-direction: column; background: #0f1729; }
.conversation-head { display: flex; height: 54px; align-items: center; justify-content: space-between; padding: 0 14px; border-bottom: 1px solid #1d2940; font-size: 11px; }
.conversation-head small { color: var(--green); }
.online-dot { display: inline-block; width: 6px; height: 6px; margin-right: 5px; border-radius: 50%; background: var(--green); }
.chat-body { flex: 1; overflow: hidden; padding: 16px 12px; font-size: 10px; }
.message { width: fit-content; max-width: 84%; margin-bottom: 12px; padding: 9px 11px; border: 1px solid #202d47; border-radius: 9px; background: #151f35; color: #dde5f5; }
.message small { display: block; margin-bottom: 3px; color: #667590; font-size: 8px; }
.message.ai { margin-left: auto; border-color: #29467d; background: #172b52; }
.message.ai small { color: #82a9ff; }
.qa-chip { display: flex; width: fit-content; align-items: center; gap: 5px; margin: -3px 0 12px auto; color: var(--green); font-size: 8px; }
.composer { height: 46px; display: flex; align-items: center; justify-content: space-between; margin: 0 10px 10px; padding: 0 12px; border: 1px solid #27334f; border-radius: 9px; color: #5f6d87; font-size: 9px; }
.composer svg { color: var(--blue); }
.insight-column { padding: 13px 11px; background: #0b1221; border-left: 1px solid #1d2940; }
.insight-head { display: flex; align-items: center; gap: 7px; padding-bottom: 10px; color: #c9d3e7; font-size: 11px; font-weight: 800; }
.insight-head svg { color: var(--blue); }
.insight-card { margin-bottom: 9px; padding: 10px; border: 1px solid #202d47; border-radius: 9px; background: #111a2d; }
.insight-card span, .insight-card small { display: block; color: #64728d; font-size: 8px; }
.insight-card strong { display: block; margin: 4px 0 3px; color: #cdd8eb; font-size: 10px; }
.insight-card strong.success { color: var(--green); }
.insight-card.attention strong { color: var(--orange); }
.insight-column button { width: 100%; display: flex; align-items: center; justify-content: center; gap: 6px; padding: 8px; border: 1px solid #315799; border-radius: 8px; background: #162b50; color: #91b5ff; font-size: 9px; }
.visual-caption { position: absolute; right: 24px; bottom: -23px; display: flex; align-items: center; gap: 8px; padding: 11px 15px; border: 1px solid #274a60; border-radius: 10px; background: #0b1725; color: #acdcd7; font-size: 12px; box-shadow: var(--shadow); }
.visual-caption svg { color: var(--cyan); }

.platform-band { padding: 56px 0; background: #09101d; border-bottom: 1px solid var(--line-soft); }
.platform-content { display: grid; grid-template-columns: minmax(250px, .72fr) minmax(0, 1.28fr); align-items: center; gap: 54px; }
.platform-copy h2 { margin: 8px 0 12px; font-size: 27px; line-height: 1.28; }
.platform-copy p { margin: 0; color: var(--muted); font-size: 14px; }
.platform-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.platform-item { display: flex; min-width: 0; align-items: center; gap: 11px; padding: 10px 12px; border: 1px solid #202c44; border-radius: 12px; background: #0d1525; color: #d7e0f1; font-size: 13px; font-weight: 700; }
.platform-icon { display: grid; width: 42px; height: 42px; flex: 0 0 auto; place-items: center; overflow: hidden; border: 1px solid #34405a; border-radius: 10px; background: #fff; }
.platform-icon img { width: 100%; height: 100%; object-fit: contain; }
.platform-icon-cover img { object-fit: cover; }
.platform-disclaimer { display: flex; align-items: center; gap: 8px; margin: 14px 0 0; color: #7f8da7; font-size: 12px; }
.platform-disclaimer svg { color: var(--blue); }

.section-heading { max-width: 760px; margin-bottom: 52px; }
.section-heading.compact { margin-bottom: 18px; }
.section-heading h2, .membership-wrap h2, .faq-intro h2, .cta-content h2 { margin: 12px 0 16px; font-size: clamp(32px, 4vw, 48px); line-height: 1.18; letter-spacing: -.04em; }
.section-heading p, .membership-wrap p, .faq-intro p, .cta-content p { margin: 0; color: var(--muted); font-size: 16px; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-card { min-height: 250px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); transition: transform .2s ease, border-color .2s ease; }
.feature-card:hover { transform: translateY(-4px); border-color: #3c4f78; }
.feature-card.feature-wide { grid-column: span 2; display: grid; grid-template-columns: auto 1fr; column-gap: 18px; align-content: start; }
.feature-card h3 { margin: 18px 0 10px; font-size: 21px; }
.feature-card.feature-wide h3 { margin-top: 0; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }
.feature-card ul { grid-column: 2; display: flex; flex-wrap: wrap; gap: 7px 18px; margin: 20px 0 0; padding: 0; color: #b8c5db; font-size: 13px; list-style: none; }
.feature-card li::before { content: "•"; margin-right: 7px; color: var(--cyan); }
.icon-box { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid #2a4e84; border-radius: 12px; background: #112342; color: #78a7ff; }
.icon-box svg { width: 22px; height: 22px; }

.highlight-row { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 76px; padding: 74px 0; border-bottom: 1px solid var(--line-soft); }
.highlight-row:last-child { border-bottom: 0; padding-bottom: 0; }
.highlight-row.reverse .highlight-copy { order: 2; }
.number-tag { color: #5577b9; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 800; }
.highlight-copy h3 { margin: 12px 0 17px; font-size: clamp(28px, 3vw, 38px); line-height: 1.25; letter-spacing: -.03em; }
.highlight-copy > p { color: var(--muted); font-size: 15px; }
.check-list { margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; margin-top: 11px; color: #c0cce0; font-size: 14px; }
.check-list svg { margin-top: 4px; color: var(--cyan); }
.loop-visual { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #0a1020; box-shadow: var(--shadow); }
.loop-step { min-width: 0; padding: 18px 8px; text-align: center; }
.loop-step svg { width: 26px; height: 26px; color: var(--blue); }
.loop-step span, .loop-step small { display: block; }
.loop-step span { margin: 10px 0 4px; font-size: 13px; font-weight: 800; }
.loop-step small { color: #6e7c98; font-size: 9px; }
.loop-step.active { border: 1px solid #285e69; border-radius: 12px; background: #0d252c; }
.loop-step.active svg { color: var(--cyan); }
.loop-arrow { color: #3b4966; }
.todo-visual, .metrics-visual, .knowledge-visual, .mode-visual, .channel-visual { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #0a1020; box-shadow: var(--shadow); }
.todo-head { display: flex; justify-content: space-between; padding: 0 2px 18px; border-bottom: 1px solid var(--line-soft); }
.todo-head span { font-weight: 800; }.todo-head b { color: var(--orange); font-size: 12px; }
.todo-item { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 12px; margin-top: 12px; padding: 14px; border: 1px solid #25314b; border-radius: 11px; background: #111a2d; }
.todo-item > svg { width: 20px; height: 20px; }.todo-item strong, .todo-item small { display: block; }
.todo-item strong { font-size: 13px; }.todo-item small { margin-top: 3px; color: #71809b; font-size: 10px; }.todo-item em { padding: 4px 7px; border-radius: 6px; font-size: 10px; font-style: normal; }
.todo-item.urgent > svg, .todo-item.urgent em { color: var(--orange); }.todo-item.urgent em { background: rgba(255, 171, 69, .1); }
.todo-item.due > svg, .todo-item.due em { color: var(--blue); }.todo-item.due em { background: rgba(77, 141, 255, .1); }
.todo-item.overdue > svg, .todo-item.overdue em { color: var(--red); }.todo-item.overdue em { background: rgba(255, 99, 118, .1); }
.knowledge-head { display: flex; justify-content: space-between; align-items: center; padding: 0 2px 18px; border-bottom: 1px solid var(--line-soft); }
.knowledge-head span { font-weight: 800; }.knowledge-head b { color: var(--cyan); font-size: 12px; }
.knowledge-layer { display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 13px; margin-top: 12px; padding: 15px; border: 1px solid #25314b; border-radius: 12px; background: #111a2d; }
.knowledge-layer > svg { width: 22px; height: 22px; color: var(--blue); }
.knowledge-layer strong, .knowledge-layer small { display: block; }
.knowledge-layer strong { font-size: 13px; }.knowledge-layer small { margin-top: 3px; color: #71809b; font-size: 10px; }
.knowledge-layer em { padding: 4px 8px; border-radius: 7px; background: rgba(77, 141, 255, .1); color: #82a9ff; font-size: 10px; font-style: normal; }
.knowledge-layer.faq > svg { color: var(--cyan); }.knowledge-layer.faq em { background: rgba(61, 217, 208, .1); color: var(--cyan); }
.knowledge-layer.rules > svg { color: var(--orange); }.knowledge-layer.rules em { background: rgba(255, 171, 69, .1); color: var(--orange); }
.mode-visual { display: grid; gap: 12px; }
.mode-card { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 14px; padding: 18px; border: 1px solid #25314b; border-radius: 12px; background: #111a2d; }
.mode-card > svg { width: 24px; height: 24px; color: #779ef0; }
.mode-card strong, .mode-card small { display: block; }.mode-card strong { font-size: 14px; }.mode-card small { margin-top: 3px; color: #71809b; font-size: 10px; }
.mode-card span { padding: 5px 9px; border-radius: 8px; background: rgba(77, 141, 255, .1); color: #91b5ff; font-size: 10px; }
.mode-card.active { border-color: #28636b; background: #0e242c; }.mode-card.active > svg, .mode-card.active span { color: var(--cyan); }.mode-card.active span { background: rgba(61, 217, 208, .1); }
.channel-visual { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: 18px; }
.channel-hub { display: flex; min-height: 192px; flex-direction: column; align-items: center; justify-content: center; padding: 18px; border: 1px solid #2d526a; border-radius: 14px; background: #0d202b; text-align: center; }
.channel-hub img { width: 66px; height: 66px; object-fit: cover; border: 1px solid #48637a; border-radius: 16px; background: #edf4fa; }
.channel-hub strong { margin-top: 12px; font-size: 16px; }.channel-hub small { color: #7ea6b7; font-size: 10px; }
.channel-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.channel-grid div { display: grid; min-height: 90px; place-items: center; padding: 12px; border: 1px solid #25314b; border-radius: 11px; background: #111a2d; color: #cbd6e9; font-size: 11px; font-weight: 700; text-align: center; }
.channel-grid svg { width: 24px; height: 24px; color: var(--blue); }
.metrics-visual { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.metric { padding: 16px; border: 1px solid #25314b; border-radius: 10px; background: #111a2d; }
.metric span, .metric small, .metric strong { display: block; }.metric span { color: #7d8ba6; font-size: 10px; }.metric strong { margin: 7px 0; font-size: 27px; }.metric small { color: var(--cyan); font-size: 9px; }
.chart { grid-column: 1 / -1; height: 170px; display: flex; align-items: end; gap: 10px; padding: 22px 18px 0; border-left: 1px solid #26334f; border-bottom: 1px solid #26334f; }
.chart span { flex: 1; background: #397cf1; border-radius: 5px 5px 0 0; opacity: .72; }
.chart span:last-child { background: var(--cyan); }

.workflow-list { display: grid; grid-template-columns: repeat(5, 1fr); margin: 0; padding: 0; list-style: none; counter-reset: none; }
.workflow-list li { position: relative; min-height: 220px; padding: 28px 22px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); background: #0b1221; }
.workflow-list li:first-child { border-left: 1px solid var(--line); border-radius: 14px 0 0 14px; }.workflow-list li:last-child { border-radius: 0 14px 14px 0; }
.workflow-list li > span { position: absolute; top: 14px; right: 16px; color: #3c4c6a; font-family: ui-monospace, monospace; font-size: 12px; }
.workflow-list svg { width: 26px; height: 26px; color: var(--blue); }
.workflow-list h3 { margin: 36px 0 9px; font-size: 17px; }.workflow-list p { margin: 0; color: var(--muted); font-size: 12px; }

.membership-section { padding: 72px 0; background: #0a1325; border-top: 1px solid #1d2d4c; border-bottom: 1px solid #1d2d4c; }
.membership-wrap { display: grid; grid-template-columns: 1fr 1.15fr; align-items: center; gap: 80px; }
.membership-wrap h2 { font-size: 35px; }
.tier-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.tier { display: grid; height: 76px; place-items: center; border: 1px solid #38435b; border-radius: 10px; color: #d9e2f0; background: #151a25; font-size: 12px; font-weight: 800; }
.tier.bronze { border-color: #6d513d; color: #d9a77a; }.tier.silver { border-color: #5e6c83; color: #d8e0ed; }.tier.gold { border-color: #8a6928; color: #ffd66b; }.tier.platinum { border-color: #4d7187; color: #aee4ee; }.tier.diamond { border-color: #4b63a0; color: #9fbaff; background: #131e3a; }

.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: start; }
.faq-intro { position: sticky; top: 110px; }
.faq-intro h2 { font-size: 42px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 28px; color: #7daaff; font-weight: 800; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 24px 0; border: 0; background: transparent; text-align: left; cursor: pointer; }
.faq-item button span { font-size: 17px; font-weight: 800; }
.faq-item button svg { flex: 0 0 auto; color: #71809c; transition: transform .2s ease; }
.faq-item.open button svg { transform: rotate(180deg); }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .25s ease; }
.faq-answer p { overflow: hidden; margin: 0; color: var(--muted); }
.faq-item.open .faq-answer { grid-template-rows: 1fr; }
.faq-item.open .faq-answer p { padding: 0 40px 24px 0; }

.final-cta { padding: 84px 0; background: #0d1a30; border-bottom: 1px solid var(--line); }
.cta-content { display: flex; align-items: center; justify-content: space-between; gap: 70px; }
.cta-content h2 { font-size: 42px; }.cta-content p { max-width: 760px; }
.site-footer { padding: 64px 0 26px; background: #050812; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 56px; }
.footer-brand { margin-bottom: 17px; }.footer-grid > div:first-child p { max-width: 290px; color: #7886a1; font-size: 13px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; color: #7f8da8; font-size: 13px; }
.footer-links strong { margin-bottom: 5px; color: #dce5f6; }.footer-links a:hover { color: var(--blue); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 54px; padding-top: 22px; border-top: 1px solid #171f31; color: #64718a; font-size: 12px; }
.footer-bottom a:hover { color: #9eb8ed; }

@media (max-width: 1080px) {
  .main-nav { gap: 18px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .app-window { width: 100%; transform: none; }
  .hero { padding-top: 90px; }
  .membership-wrap { grid-template-columns: 1fr; gap: 36px; }
  .highlight-row { gap: 36px; }
  .loop-visual { padding: 16px; }
}

@media (max-width: 860px) {
  :root { --nav-height: 64px; }
  .container { width: min(100% - 32px, 1180px); }
  .section-pad { padding: 82px 0; }
  .nav-toggle { display: inline-grid; place-items: center; }
  .header-cta { margin-left: 0; }
  .main-nav { position: absolute; top: 63px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 16px 18px; background: #080d18; border-bottom: 1px solid var(--line); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 10px; border-bottom: 1px solid #151e31; }
  .hero { min-height: auto; }
  .hero h1 { font-size: 48px; }
  .app-layout { grid-template-columns: 46px 156px 1fr; }
  .insight-column { display: none; }
  .platform-content { grid-template-columns: 1fr; align-items: flex-start; gap: 30px; }
  .platform-ecosystem { width: 100%; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card.feature-wide { grid-column: span 2; }
  .highlight-row, .highlight-row.reverse { grid-template-columns: 1fr; gap: 32px; }
  .highlight-row.reverse .highlight-copy { order: 0; }
  .workflow-list { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .workflow-list li, .workflow-list li:first-child, .workflow-list li:last-child { min-height: 185px; border: 1px solid var(--line); border-radius: 12px; }
  .workflow-list li:last-child { grid-column: span 2; }
  .faq-layout { grid-template-columns: 1fr; gap: 46px; }
  .faq-intro { position: static; }
  .cta-content { align-items: flex-start; flex-direction: column; gap: 32px; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2 / -1; }
}

@media (max-width: 620px) {
  .header-cta { display: none; }
  .brand-name { font-size: 18px; }
  .hero { padding: 72px 0 78px; }
  .hero h1 { margin-top: 16px; font-size: 40px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-notes { gap: 10px 16px; }
  .app-layout { grid-template-columns: 42px 1fr; height: 410px; }
  .store-column { display: none; }
  .app-topbar { grid-template-columns: 1fr auto; }
  .window-dots { display: none; }
  .quota-mini { font-size: 10px; }
  .visual-caption { right: 10px; }
  .platform-list { display: grid; width: 100%; grid-template-columns: repeat(2, 1fr); }
  .platform-item { padding: 9px 10px; }
  .capability-grid { grid-template-columns: 1fr; }
  .feature-card.feature-wide { grid-column: auto; grid-template-columns: auto 1fr; }
  .feature-card.feature-wide ul { grid-column: 1 / -1; }
  .feature-card { min-height: auto; }
  .loop-visual { grid-template-columns: 1fr 1fr; gap: 8px; }
  .loop-arrow { display: none; }
  .knowledge-layer, .mode-card { grid-template-columns: 36px 1fr; }
  .knowledge-layer em, .mode-card > span { grid-column: 2; width: fit-content; }
  .channel-visual { grid-template-columns: 1fr; }
  .channel-hub { min-height: 150px; }
  .metrics-visual { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(3) { grid-column: span 2; }
  .workflow-list { grid-template-columns: 1fr; }
  .workflow-list li:last-child { grid-column: auto; }
  .tier-list { grid-template-columns: repeat(2, 1fr); }
  .tier:last-child { grid-column: span 2; }
  .section-heading h2, .faq-intro h2, .cta-content h2 { font-size: 34px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child, .footer-grid > div:last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 420px) {
  .container { width: min(100% - 24px, 1180px); }
  .hero h1 { font-size: 35px; }
  .platform-list { grid-template-columns: 1fr; }
  .platform-icon { width: 40px; height: 40px; }
  .todo-visual, .knowledge-visual, .mode-visual, .channel-visual { padding: 16px; }
  .todo-item { grid-template-columns: 30px 1fr; }
  .todo-item em { grid-column: 2; width: fit-content; }
  .channel-grid { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}