:root {
  --blue: #1a73e8;
  --blue-dark: #1557b0;
  --green: #34a853;
  --green-dark: #17823b;
  --yellow: #fbbc04;
  --red: #ea4335;
  --ink: #202124;
  --muted: #5f6368;
  --line: #e8eaed;
  --surface: #f8fafd;
  --soft-blue: #e8f0fe;
  --soft-green: #e6f4ea;
  --soft-yellow: #fef7e0;
  --soft-red: #fce8e6;
  --radius: 28px;
  --shadow: 0 12px 35px rgba(60, 64, 67, .12), 0 2px 8px rgba(60, 64, 67, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Google Sans", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 1000; padding: 10px 14px; background: #fff; border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.section-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.section { padding: 112px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(18px);
  transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 2px 10px rgba(60,64,67,.06); }
.nav-wrap { width: min(1280px, calc(100% - 40px)); height: 72px; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 700; letter-spacing: -.4px; }
.brand img { border-radius: 12px; box-shadow: 0 3px 12px rgba(52,168,83,.2); }
.site-nav { display: flex; align-items: center; gap: 28px; color: #3c4043; font-size: 14px; font-weight: 500; }
.site-nav a { padding: 10px 0; transition: color .2s; }
.site-nav a:hover { color: var(--blue); }
.site-nav .nav-action { padding: 10px 19px; border: 1px solid #dadce0; border-radius: 22px; color: var(--blue); }
.site-nav .nav-action:hover { background: #f8fbff; border-color: #aecbfa; }
.menu-button { display: none; width: 42px; height: 42px; border: 0; border-radius: 50%; background: transparent; cursor: pointer; }
.menu-button span { display: block; width: 20px; height: 2px; margin: 4px auto; background: #3c4043; border-radius: 2px; }

.hero { min-height: 720px; padding-top: 94px; padding-bottom: 82px; display: grid; grid-template-columns: 1.02fr .98fr; gap: 64px; align-items: center; }
.eyebrow, .section-kicker { color: var(--blue); font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 13px 7px 9px; border-radius: 18px; background: var(--soft-blue); }
.eyebrow span { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(52,168,83,.13); }
.hero h1 { margin: 27px 0 24px; font-size: clamp(48px, 5.4vw, 76px); line-height: 1.08; letter-spacing: -3.8px; font-weight: 650; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-lead { max-width: 620px; margin: 0; color: var(--muted); font-size: 19px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0 23px; border-radius: 24px; font-size: 15px; font-weight: 650; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--blue); box-shadow: 0 6px 18px rgba(26,115,232,.22); }
.button-primary:hover { background: var(--blue-dark); box-shadow: 0 8px 24px rgba(26,115,232,.28); }
.button-secondary { color: var(--blue); border: 1px solid #dadce0; background: #fff; }
.button-secondary:hover { background: #f8fbff; border-color: #aecbfa; }
.download-symbol { width: 16px; height: 17px; position: relative; display: inline-block; border-bottom: 2px solid currentColor; }
.download-symbol::before { content: ""; position: absolute; left: 7px; top: 0; width: 2px; height: 10px; border-radius: 2px; background: currentColor; }
.download-symbol::after { content: ""; position: absolute; left: 4px; top: 5px; width: 7px; height: 7px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); }
.hero-note { display: flex; align-items: center; gap: 9px; margin-top: 28px; color: var(--muted); font-size: 13px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }

.hero-visual { min-height: 570px; position: relative; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #e8f0fe 0 30%, #f3f8ff 55%, rgba(255,255,255,0) 72%); }
.orbit { position: absolute; border: 1px solid #d9e6fb; border-radius: 50%; }
.orbit-one { width: 500px; height: 500px; }
.orbit-two { width: 390px; height: 390px; border-style: dashed; animation: spin 30s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.phone-card { position: relative; z-index: 2; width: 330px; padding: 23px; border: 1px solid rgba(218,220,224,.9); border-radius: 34px; background: rgba(255,255,255,.95); box-shadow: 0 30px 70px rgba(26,115,232,.16), 0 6px 18px rgba(60,64,67,.1); transform: rotate(1.5deg); }
.phone-top, .mini-brand, .platform-row { display: flex; align-items: center; }
.phone-top { justify-content: space-between; margin-bottom: 20px; }
.mini-brand { gap: 9px; }
.mini-brand img { border-radius: 10px; }
.mini-brand div, .platform-row div:nth-child(2) { display: flex; flex-direction: column; gap: 2px; }
.mini-brand b { font-size: 14px; }
.mini-brand small, .platform-row small { color: #80868b; font-size: 10px; }
.ready-pill { padding: 5px 8px; color: var(--green-dark); background: var(--soft-green); border-radius: 12px; font-size: 10px; font-weight: 700; }
.task-summary { padding: 17px; border-radius: 19px; color: #fff; background: linear-gradient(135deg, #1a73e8, #4285f4); box-shadow: 0 8px 22px rgba(26,115,232,.25); }
.task-summary span, .task-summary small { display: block; opacity: .8; font-size: 10px; }
.task-summary strong { display: block; margin: 5px 0 12px; font-size: 23px; }
.progress-track { height: 5px; margin-bottom: 8px; border-radius: 5px; background: rgba(255,255,255,.24); overflow: hidden; }
.progress-track i { display: block; width: 58%; height: 100%; border-radius: inherit; background: #fff; }
.platform-row { gap: 10px; padding: 13px 2px; border-bottom: 1px solid #f1f3f4; }
.platform-row > div:nth-child(2) { flex: 1; }
.platform-row b { font-size: 12px; }
.platform-row > span { color: var(--green-dark); font-size: 10px; }
.platform-mark, .platform-logo { display: grid; place-items: center; color: #fff; font-weight: 800; }
.platform-mark { width: 33px; height: 33px; border-radius: 10px; font-size: 12px; }
.douyin { background: linear-gradient(135deg, #111827, #374151); }
.kuaishou { background: linear-gradient(135deg, #ff7a00, #ff4d00); }
.redbook { background: linear-gradient(135deg, #ff2442, #e31837); }
.run-button { height: 42px; margin-top: 17px; display: flex; align-items: center; justify-content: center; gap: 8px; color: #fff; background: var(--green); border-radius: 21px; font-size: 12px; font-weight: 700; }
.play-icon { width: 0; height: 0; border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 8px solid #fff; }
.float-card { position: absolute; z-index: 4; border: 1px solid #e8eaed; background: rgba(255,255,255,.96); box-shadow: var(--shadow); }
.float-stat { left: -8px; top: 110px; width: 130px; padding: 15px; border-radius: 18px; transform: rotate(-4deg); }
.float-stat span, .float-stat small { display: block; color: var(--muted); font-size: 10px; }
.float-stat strong { display: block; margin: 4px 0; color: var(--blue); font-size: 26px; }
.float-safe { right: -5px; bottom: 95px; display: flex; align-items: center; gap: 9px; padding: 13px 15px; border-radius: 18px; transform: rotate(3deg); }
.float-safe > i { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; color: var(--green-dark); background: var(--soft-green); font-style: normal; font-weight: 800; }
.float-safe span { display: flex; flex-direction: column; gap: 2px; }
.float-safe b { font-size: 11px; }.float-safe small { color: var(--muted); font-size: 9px; }

.trust-strip { width: min(1050px, calc(100% - 48px)); margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); padding: 27px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-strip div { display: flex; flex-direction: column; align-items: center; gap: 5px; border-right: 1px solid var(--line); }
.trust-strip div:last-child { border-right: 0; }
.trust-strip strong { font-size: 24px; font-weight: 650; }.trust-strip span { color: var(--muted); font-size: 13px; }

.product-summary { margin-top:72px; padding:38px 42px; display:grid; grid-template-columns:.62fr 1.38fr; gap:55px; align-items:start; border:1px solid var(--line); border-radius:26px; background:var(--surface); }
.summary-title h2 { margin:10px 0 0; font-size:30px; letter-spacing:-1px; }
.summary-content > p { margin:0 0 25px; color:#3c4043; font-size:16px; line-height:1.8; }
.summary-content dl { margin:0; display:grid; grid-template-columns:1fr 1fr; gap:0 28px; }
.summary-content dl > div { padding:15px 0; border-top:1px solid var(--line); }
.summary-content dt { margin-bottom:5px; color:var(--muted); font-size:12px; font-weight:700; }
.summary-content dd { margin:0; color:var(--ink); font-size:14px; line-height:1.6; }

.section-heading { margin-bottom: 52px; }
.section-heading.centered { max-width: 760px; margin-inline: auto; text-align: center; }
.section-heading h2 { margin: 14px 0 16px; font-size: clamp(36px, 4vw, 52px); line-height: 1.18; letter-spacing: -2px; font-weight: 650; }
.section-heading p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; align-items: stretch; }
.feature-card { min-height: 330px; padding: 36px; border-radius: var(--radius); overflow: hidden; position: relative; }
.feature-card h3 { max-width: 500px; margin: 12px 0 12px; font-size: 27px; letter-spacing: -.8px; }
.feature-card p { max-width: 550px; margin: 0; color: #4f5964; line-height: 1.75; }
.feature-large { grid-column: 1 / -1; min-height: 400px; }
.feature-wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr .8fr; align-items: center; gap: 50px; border: 1px solid var(--line); }
.blue-card { background: var(--soft-blue); }.green-card { background: var(--soft-green); }.yellow-card { background: var(--soft-yellow); }.red-card { background: var(--soft-red); }.white-card { background: #fff; }
.card-label { display: block; margin-top: 20px; color: var(--muted); font-size: 13px; font-weight: 700; }
.feature-icon { width: 52px; height: 52px; border-radius: 17px; position: relative; background: #fff; box-shadow: 0 4px 12px rgba(60,64,67,.08); }
.search-icon::before { content: ""; position: absolute; width: 17px; height: 17px; left: 14px; top: 12px; border: 3px solid var(--blue); border-radius: 50%; }
.search-icon::after { content: ""; position: absolute; width: 12px; height: 3px; left: 30px; top: 32px; border-radius: 3px; background: var(--blue); transform: rotate(45deg); }
.play-feature i { position: absolute; left: 21px; top: 17px; border-top: 9px solid transparent; border-bottom: 9px solid transparent; border-left: 14px solid var(--green); }
.tune-icon i { position: absolute; left: 13px; width: 27px; height: 3px; border-radius: 3px; background: #d69200; }
.tune-icon i:nth-child(1){top:14px}.tune-icon i:nth-child(2){top:25px}.tune-icon i:nth-child(3){top:36px}
.tune-icon i::after { content:""; position:absolute; width:8px; height:8px; top:-3px; border-radius:50%; background:#d69200; }
.tune-icon i:nth-child(1)::after{left:5px}.tune-icon i:nth-child(2)::after{left:17px}.tune-icon i:nth-child(3)::after{left:9px}
.chart-icon { display:flex; align-items:flex-end; justify-content:center; gap:3px; padding:13px; }
.chart-icon i { width:5px; border-radius:4px; background:var(--red); }.chart-icon i:nth-child(1){height:12px}.chart-icon i:nth-child(2){height:22px}.chart-icon i:nth-child(3){height:17px}.chart-icon i:nth-child(4){height:28px}
.shield-icon { display:grid; place-items:center; color:var(--blue); font-weight:800; font-size:22px; }
.keyword-demo { position:absolute; right:45px; bottom:48px; width:410px; display:flex; flex-wrap:wrap; gap:10px; justify-content:flex-end; }
.keyword-demo span { padding:11px 15px; border-radius:18px; background:rgba(255,255,255,.75); color:#3c4043; font-size:13px; box-shadow:0 3px 10px rgba(60,64,67,.05); }
.keyword-demo span:last-child { color:var(--blue); border:1px dashed #8ab4f8; background:rgba(255,255,255,.45); }
.status-panel { padding: 12px 24px; border-radius: 22px; background: var(--surface); }
.status-panel > div, .membership-list > div { display:flex; align-items:center; gap:13px; padding:15px 0; border-bottom:1px solid var(--line); }
.status-panel > div:last-child, .membership-list > div:last-child { border:0; }
.check { width:30px; height:30px; display:grid; place-items:center; border-radius:50%; color:var(--green-dark); background:var(--soft-green); font-weight:800; }
.status-panel p, .membership-list p { margin:0; display:flex; flex-direction:column; gap:3px; }.status-panel b,.membership-list b{font-size:14px}.status-panel small,.membership-list small{color:var(--muted)}

.audience-section { background:#f8fafd; }
.audience-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.audience-grid article { min-height:290px; padding:29px; display:flex; flex-direction:column; border:1px solid var(--line); border-radius:24px; background:#fff; }
.audience-grid article > span { width:50px; height:50px; display:grid; place-items:center; border-radius:16px; color:var(--blue); background:var(--soft-blue); font-size:17px; font-weight:800; }
.audience-grid article:nth-child(2) > span { color:var(--green-dark); background:var(--soft-green); }
.audience-grid article:nth-child(3) > span { color:#aa7100; background:var(--soft-yellow); }
.audience-grid article:nth-child(4) > span { color:var(--red); background:var(--soft-red); }
.audience-grid h3 { margin:24px 0 10px; font-size:20px; }
.audience-grid p { margin:0 0 22px; color:var(--muted); font-size:14px; line-height:1.75; }
.audience-grid b { margin-top:auto; padding-top:17px; border-top:1px solid var(--line); color:#3c4043; font-size:12px; line-height:1.6; }

.platform-section { background: var(--surface); }
.split-heading { display:grid; grid-template-columns:1.2fr .8fr; gap:70px; align-items:end; }
.split-heading h2 { max-width:620px; margin-bottom:0; }.split-heading p { padding-bottom:5px; }
.platform-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.platform-card { height:100%; padding:30px; display:flex; flex-direction:column; border:1px solid var(--line); border-radius:24px; background:#fff; transition:transform .25s,box-shadow .25s; }
.platform-card:hover { transform:translateY(-5px); box-shadow:var(--shadow); }
.platform-logo { width:52px; height:52px; margin-bottom:20px; border-radius:16px; font-size:17px; }
.platform-card h3 { margin:0 0 5px; font-size:23px; }.platform-card p{margin:0;color:var(--muted)}
.platform-card ul { margin:auto 0 0; padding:20px 0 0; list-style:none; border-top:1px solid var(--line); }
.platform-card li { position:relative; padding:7px 0 7px 19px; color:#4b5563; font-size:14px; }
.platform-card li::before { content:""; position:absolute; left:1px; top:14px; width:6px; height:6px; border-radius:50%; background:var(--green); }

.scenario-list { border-top:1px solid var(--line); }
.scenario-list article { min-height:175px; display:grid; grid-template-columns:80px 1fr auto; gap:34px; align-items:center; padding:32px 12px; border-bottom:1px solid var(--line); }
.scenario-index { width:54px; height:54px; display:grid; place-items:center; border-radius:50%; color:var(--blue); background:var(--soft-blue); font-size:13px; font-weight:800; }
.scenario-list article:nth-child(2) .scenario-index { color:var(--green-dark); background:var(--soft-green); }
.scenario-list article:nth-child(3) .scenario-index { color:#aa7100; background:var(--soft-yellow); }
.scenario-list article div:nth-child(2) > span { color:var(--muted); font-size:12px; font-weight:700; }
.scenario-list h3 { margin:7px 0 8px; font-size:23px; letter-spacing:-.5px; }
.scenario-list p { max-width:720px; margin:0; color:var(--muted); font-size:14px; line-height:1.7; }
.scenario-list article > b { min-width:110px; padding:9px 14px; border:1px solid var(--line); border-radius:18px; color:var(--blue); background:#fff; text-align:center; font-size:12px; }

.steps { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; counter-reset:steps; }
.steps article { min-height:285px; position:relative; padding:29px; border:1px solid var(--line); border-radius:24px; background:#fff; }
.steps article > span { position:absolute; right:22px; top:20px; color:#bdc1c6; font-size:13px; font-weight:700; }
.steps article::after { content:""; position:absolute; right:-19px; top:74px; width:20px; border-top:1px dashed #bdc1c6; }
.steps article:last-child::after { display:none; }
.steps h3 { margin:25px 0 10px; font-size:19px; }.steps p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.step-icon { width:56px; height:56px; position:relative; display:grid; place-items:center; border-radius:18px; background:var(--soft-blue); color:var(--blue); font-size:22px; font-weight:800; }
.account-icon::before { content:""; width:15px;height:15px;border:3px solid var(--blue);border-radius:50%;transform:translateY(-6px); }.account-icon::after{content:"";position:absolute;width:26px;height:13px;border:3px solid var(--blue);border-bottom:0;border-radius:16px 16px 0 0;transform:translateY(14px)}
.permission-icon{background:var(--soft-green);color:var(--green-dark)}.config-icon{background:var(--soft-yellow)}.config-icon::before{content:"⚙";color:#c78300}.rocket-icon{background:var(--soft-red);color:var(--red);font-size:16px}

.insight-section { background:#f5f8ff; overflow:hidden; }
.insight-layout { display:grid; grid-template-columns:.85fr 1.15fr; gap:80px; align-items:center; }
.insight-copy h2 { margin:15px 0 20px; font-size:clamp(38px,4vw,52px);line-height:1.2;letter-spacing:-2px }.insight-copy>p{color:var(--muted);font-size:16px;line-height:1.8}
.check-list { list-style:none;padding:0;margin:27px 0 0 }.check-list li{display:flex;align-items:center;gap:10px;margin:13px 0;color:#3c4043}.check-list span{width:23px;height:23px;display:grid;place-items:center;border-radius:50%;background:var(--soft-green);color:var(--green-dark);font-size:12px;font-weight:800}
.dashboard-card { padding:29px;border:1px solid #e0e8f8;border-radius:28px;background:#fff;box-shadow:0 24px 60px rgba(26,115,232,.12) }
.dashboard-head { display:flex;justify-content:space-between;align-items:center }.dashboard-head div{display:flex;flex-direction:column;gap:5px}.dashboard-head small{color:var(--muted)}.dashboard-head strong{font-size:22px}.dashboard-head>span{padding:7px 10px;border-radius:12px;background:var(--surface);color:var(--muted);font-size:11px}
.metric-grid { display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:27px 0 30px }.metric-grid>div{position:relative;padding:15px;border-radius:16px;background:var(--surface)}.metric-grid small{display:block;color:var(--muted);font-size:11px}.metric-grid strong{display:inline-block;margin-top:7px;font-size:24px}.metric-grid em{margin-left:3px;color:var(--muted);font-size:10px;font-style:normal}.metric-dot{position:absolute;right:11px;top:11px;width:7px;height:7px;border-radius:50%}.metric-dot.blue{background:var(--blue)}.metric-dot.red{background:var(--red)}.metric-dot.yellow{background:var(--yellow)}.metric-dot.green{background:var(--green)}
.bar-chart { height:220px;position:relative;display:flex;align-items:flex-end;justify-content:space-around;padding:20px 30px 0;border-top:1px solid var(--line) }.chart-lines{position:absolute;inset:22px 0 30px;display:flex;flex-direction:column;justify-content:space-between}.chart-lines i{display:block;border-top:1px dashed #e8eaed}.bar-group{z-index:1;width:25%;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:10px}.bar-group>div{width:100%;height:160px;display:flex;align-items:flex-end;justify-content:center;gap:6px}.bar-group i,.bar-group b,.bar-group em{width:15px;display:block;border-radius:5px 5px 2px 2px}.bar-group i{background:var(--blue)}.bar-group b{background:var(--green)}.bar-group em{background:var(--yellow)}.bar-group span{color:var(--muted);font-size:11px}
.demo-notice { margin:14px 0 0;color:#80868b;font-size:11px;text-align:center }

.compact-heading { max-width:820px!important }.security-grid { display:grid;grid-template-columns:repeat(4,1fr);gap:18px }.security-grid article{padding:27px;border-top:3px solid var(--blue);background:var(--surface);border-radius:0 0 20px 20px}.security-grid article:nth-child(2){border-color:var(--green)}.security-grid article:nth-child(3){border-color:var(--yellow)}.security-grid article:nth-child(4){border-color:var(--red)}.security-number{color:#9aa0a6;font-size:12px;font-weight:700}.security-grid h3{margin:25px 0 10px;font-size:18px}.security-grid p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}

.membership-section { padding-top:20px }.membership-card { min-height:410px;padding:62px 70px;display:grid;grid-template-columns:1fr .8fr;gap:70px;align-items:center;border-radius:34px;color:#fff;background:linear-gradient(135deg,#1557b0,#1a73e8 55%,#4285f4);position:relative;overflow:hidden}.membership-card::before{content:"";position:absolute;width:340px;height:340px;border:70px solid rgba(255,255,255,.07);border-radius:50%;right:-100px;top:-150px}.light-kicker{color:#d2e3fc}.membership-copy{position:relative;z-index:1}.membership-copy h2{margin:14px 0 18px;font-size:42px;line-height:1.2;letter-spacing:-1.5px}.membership-copy p{max-width:610px;margin:0 0 28px;color:#dce8ff;line-height:1.75}.button-light{background:#fff;color:var(--blue)}.membership-list{position:relative;z-index:1;padding:12px 24px;border-radius:22px;background:rgba(255,255,255,.12);backdrop-filter:blur(8px)}.membership-list>div{border-color:rgba(255,255,255,.17)}.membership-list>div>span{width:29px;height:29px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.17);font-weight:800}.membership-list small{color:#dce8ff}

.download-section { background:#fff; }
.download-layout { display:grid; grid-template-columns:1fr .8fr; gap:90px; align-items:center; padding:72px 76px; border:1px solid var(--line); border-radius:34px; background:linear-gradient(135deg,#f8fafd,#fff); box-shadow:0 12px 35px rgba(60,64,67,.06); }
.download-copy h2 { margin:14px 0 18px; font-size:clamp(38px,4vw,52px); line-height:1.2; letter-spacing:-2px; }
.download-copy > p { max-width:630px; margin:0; color:var(--muted); line-height:1.8; }
.download-points { display:flex; flex-wrap:wrap; gap:12px 20px; margin-top:26px; }
.download-points span { display:flex; align-items:center; gap:7px; color:#3c4043; font-size:13px; }
.download-points i { width:21px; height:21px; display:grid; place-items:center; border-radius:50%; color:var(--green-dark); background:var(--soft-green); font-size:11px; font-style:normal; font-weight:800; }
.download-card { padding:28px; border:1px solid var(--line); border-radius:25px; background:#fff; box-shadow:var(--shadow); }
.download-app { display:flex; align-items:center; gap:15px; padding-bottom:22px; border-bottom:1px solid var(--line); }
.download-app img { border-radius:19px; box-shadow:0 7px 20px rgba(52,168,83,.2); }
.download-app div { flex:1; display:flex; flex-direction:column; gap:5px; }
.download-app strong { font-size:20px; }.download-app span{color:var(--muted);font-size:13px}.download-app>b{padding:6px 8px;border-radius:9px;color:var(--green-dark);background:var(--soft-green);font-size:11px}
.download-button { width:100%; margin-top:22px; }
.download-card > p { margin:17px 2px 0; color:var(--muted); font-size:12px; line-height:1.65; }.download-card>p b{color:#3c4043}
.text-link { margin-left:4px;color:var(--blue);font-weight:650 }

.faq-layout { display:grid;grid-template-columns:.75fr 1.25fr;gap:80px }.faq-heading{position:sticky;top:120px;align-self:start}.faq-heading h2{font-size:44px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;font-size:17px;font-weight:650}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{width:24px;height:24px;position:relative;border-radius:50%;background:var(--surface);flex:none}.faq-list summary span::before,.faq-list summary span::after{content:"";position:absolute;left:7px;top:11px;width:10px;height:2px;background:#5f6368}.faq-list summary span::after{transform:rotate(90deg);transition:transform .2s}.faq-list details[open] summary span::after{transform:rotate(0)}.faq-list details p{margin:-3px 45px 24px 0;color:var(--muted);line-height:1.75}

.contact-section { min-height:490px;position:relative;display:flex;align-items:center;overflow:hidden;background:var(--surface)}.contact-inner{position:relative;z-index:2;text-align:center}.contact-inner>img{margin:0 auto 20px;border-radius:22px;box-shadow:0 10px 30px rgba(52,168,83,.22)}.contact-inner h2{margin:14px 0;font-size:clamp(38px,4.5vw,58px);letter-spacing:-2px}.contact-inner>p{margin:0;color:var(--muted);font-size:17px}.contact-actions{display:flex;justify-content:center;gap:13px;margin-top:30px;flex-wrap:wrap}.contact-glow{position:absolute;border-radius:50%;filter:blur(1px)}.contact-glow.one{width:300px;height:300px;left:-90px;top:-80px;background:radial-gradient(circle,#e8f0fe,rgba(232,240,254,0) 70%)}.contact-glow.two{width:340px;height:340px;right:-80px;bottom:-100px;background:radial-gradient(circle,#e6f4ea,rgba(230,244,234,0) 70%)}

.site-footer { padding:58px 0 25px;border-top:1px solid var(--line);background:#fff}.footer-main{display:grid;grid-template-columns:1.65fr repeat(4,1fr);gap:42px}.footer-brand p{max-width:300px;color:var(--muted);font-size:14px;line-height:1.7}.footer-brand>small{display:block;margin-top:15px;color:#80868b;font-size:12px;line-height:1.6}.footer-links{display:flex;flex-direction:column;gap:12px;font-size:13px}.footer-links b{margin-bottom:5px;font-size:14px}.footer-links a{color:var(--muted)}.footer-links a:hover{color:var(--blue)}.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#80868b;font-size:12px}
.mobile-download-bar { display:none }

.legal-header { position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(16px) }
.legal-nav { width:min(980px,calc(100% - 40px));height:68px;margin:auto;display:flex;align-items:center;justify-content:space-between }
.legal-nav .brand img { width:38px;height:38px }
.back-home { padding:9px 15px;border:1px solid #dadce0;border-radius:20px;color:var(--blue);font-size:13px;font-weight:650 }
.legal-main { width:min(880px,calc(100% - 40px));margin:70px auto 100px }
.legal-hero { padding-bottom:38px;border-bottom:1px solid var(--line) }
.legal-hero h1 { margin:14px 0 15px;font-size:clamp(38px,6vw,58px);letter-spacing:-2px }
.legal-hero p { margin:0;color:var(--muted);line-height:1.8 }
.legal-meta { display:flex;gap:18px;flex-wrap:wrap;margin-top:18px;color:#80868b;font-size:13px }
.legal-content { padding-top:22px }
.legal-content section { padding:25px 0;border-bottom:1px solid var(--line) }
.legal-content h2 { margin:0 0 13px;font-size:22px;letter-spacing:-.4px }
.legal-content h3 { margin:20px 0 8px;font-size:16px }
.legal-content p,.legal-content li { color:#4b5563;font-size:15px;line-height:1.85 }
.legal-content p { margin:9px 0 }
.legal-content ul { margin:9px 0;padding-left:22px }
.legal-callout { padding:18px 20px!important;border:0!important;border-radius:16px;background:var(--soft-blue) }
.legal-callout p { margin:0;color:#315a91 }
.version-card { display:grid;grid-template-columns:repeat(2,1fr);gap:1px;margin:24px 0;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden }
.version-card div { padding:18px;background:#fff }
.version-card small { display:block;margin-bottom:6px;color:var(--muted) }
.version-card strong { font-size:15px }
.legal-actions { display:flex;gap:12px;flex-wrap:wrap;margin-top:26px }
.legal-footer { width:min(880px,calc(100% - 40px));margin:0 auto 38px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:#80868b;font-size:12px }
.legal-footer nav { display:flex;gap:18px;flex-wrap:wrap }
.legal-footer a:hover { color:var(--blue) }

[data-reveal] { opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease }[data-reveal].visible{opacity:1;transform:none}

@media (max-width: 980px) {
  .site-nav { position:absolute;left:20px;right:20px;top:66px;padding:18px;display:none;flex-direction:column;align-items:stretch;gap:4px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow) }.site-nav.open{display:flex}.site-nav a{padding:11px 12px}.site-nav .nav-action{text-align:center;margin-top:5px}.menu-button{display:block}
  .hero { grid-template-columns:1fr;padding-top:70px;text-align:center }.hero-lead{margin-inline:auto}.hero-actions,.hero-note{justify-content:center}.hero-visual{margin-top:-20px}.float-stat{left:7%}.float-safe{right:5%}
  .product-summary{grid-template-columns:1fr;gap:25px}
  .feature-grid{grid-template-columns:1fr 1fr}.feature-wide,.insight-layout,.membership-card,.download-layout,.faq-layout,.split-heading{grid-template-columns:1fr}.red-card{grid-column:1/-1}.platform-grid,.audience-grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.steps article:nth-child(2)::after{display:none}.security-grid{grid-template-columns:1fr 1fr}.faq-heading{position:static}.footer-main{grid-template-columns:2fr 1fr 1fr}.keyword-demo{position:static;width:auto;justify-content:flex-start;margin-top:32px}.download-layout{gap:45px;padding:55px}
}

@media (max-width: 640px) {
  .home-page { padding-bottom:76px }
  .section-shell{width:min(100% - 30px,1180px)}.section{padding:78px 0}.nav-wrap{width:calc(100% - 24px);height:64px}.brand{font-size:18px}.brand img{width:37px;height:37px}
  .hero{min-height:auto;padding-top:58px;padding-bottom:60px;gap:35px}.hero h1{font-size:43px;letter-spacing:-2.4px}.hero-lead{font-size:16px}.hero-actions{flex-direction:column}.hero-actions .button{width:100%}.hero-note{font-size:12px;line-height:1.6}
  .hero-visual{min-height:500px;transform:scale(.91);margin-inline:-20px}.orbit-one{width:410px;height:410px}.orbit-two{width:340px;height:340px}.phone-card{width:300px;padding:20px}.float-stat{left:0;top:80px}.float-safe{right:0;bottom:55px}
  .trust-strip{width:calc(100% - 30px);grid-template-columns:1fr 1fr;row-gap:22px}.trust-strip div:nth-child(2){border-right:0}.trust-strip div:nth-child(-n+2){padding-bottom:20px;border-bottom:1px solid var(--line)}
  .product-summary{margin-top:48px;padding:28px 24px}.summary-content dl{grid-template-columns:1fr}.summary-title h2{font-size:27px}
  .section-heading{margin-bottom:36px}.section-heading h2{font-size:34px;letter-spacing:-1.3px}.section-heading p{font-size:15px}.feature-grid,.platform-grid,.audience-grid,.steps,.security-grid{grid-template-columns:1fr}.red-card{grid-column:auto}.feature-card{min-height:auto;padding:27px}.feature-card h3{font-size:23px}.feature-wide{gap:28px}.feature-large{min-height:auto}.keyword-demo{margin-top:28px}.audience-grid article{min-height:auto}.scenario-list article{grid-template-columns:52px 1fr;gap:16px;padding:27px 0}.scenario-index{width:46px;height:46px}.scenario-list article>div:nth-child(2){min-width:0}.scenario-list article>b{grid-column:2;justify-self:start}.scenario-list h3{font-size:19px}.steps article::after{display:none}.steps article{min-height:auto}.metric-grid{grid-template-columns:1fr 1fr}.dashboard-card{padding:20px}.bar-chart{padding-inline:5px}.insight-layout{gap:45px}.insight-copy h2{font-size:35px}.membership-card{width:calc(100% - 22px);padding:40px 25px;gap:35px}.membership-copy h2{font-size:33px}.download-layout{padding:38px 23px;border-radius:26px}.download-copy h2{font-size:34px}.download-points{flex-direction:column}.faq-layout{gap:25px}.faq-heading h2{font-size:34px}.faq-list summary{font-size:15px}.contact-section{min-height:520px}.contact-actions{flex-direction:column}.contact-actions .button{width:100%}.footer-main{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:10px;line-height:1.6}
  .mobile-download-bar { position:fixed;z-index:200;left:0;right:0;bottom:0;height:70px;padding:10px 15px;display:flex;align-items:center;gap:11px;border-top:1px solid var(--line);background:rgba(255,255,255,.96);box-shadow:0 -6px 22px rgba(60,64,67,.12);backdrop-filter:blur(16px) }.mobile-download-bar img{border-radius:12px}.mobile-download-bar div{min-width:0;flex:1;display:flex;flex-direction:column;gap:2px}.mobile-download-bar strong{font-size:14px}.mobile-download-bar span{color:var(--muted);font-size:11px}.mobile-download-bar>a{padding:10px 17px;border-radius:20px;color:#fff;background:var(--blue);font-size:13px;font-weight:700}
  .legal-main{width:calc(100% - 30px);margin:48px auto 72px}.legal-hero h1{letter-spacing:-1.4px}.version-card{grid-template-columns:1fr}.legal-actions{flex-direction:column}.legal-actions .button{width:100%}.legal-footer{width:calc(100% - 30px);flex-direction:column}.legal-footer nav{gap:14px}
}

@media (prefers-reduced-motion: reduce) { html{scroll-behavior:auto}.orbit-two{animation:none}[data-reveal]{opacity:1;transform:none;transition:none}.button,.platform-card{transition:none} }