:root {
    --ink: #101226;
    --ink-2: #171a34;
    --night: #080b18;
    --night-2: #0d1126;
    --paper: #f7f8fc;
    --paper-2: #eef0f7;
    --white: #ffffff;
    --muted: #697087;
    --line: rgba(16, 18, 38, .11);
    --violet: #7868ff;
    --violet-2: #a395ff;
    --cyan: #57d9ea;
    --lime: #c9f56b;
    --coral: #ff745d;
    --ease: cubic-bezier(.2, .8, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
button { color: inherit; font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 20px; top: -70px; z-index: 1000; padding: 12px 18px; color: white; background: var(--violet); border-radius: 10px; transition: top .2s; }
.skip-link:focus { top: 20px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; padding: 16px 0 0; transition: padding .3s var(--ease); }
.site-header.is-scrolled { padding-top: 9px; }
.nav-shell {
    width: min(1220px, calc(100% - 40px));
    height: 68px;
    margin: 0 auto;
    padding: 0 10px 0 16px;
    display: flex;
    align-items: center;
    color: white;
    border: 1px solid rgba(255,255,255,.11);
    border-radius: 20px;
    background: rgba(9, 12, 27, .72);
    box-shadow: 0 18px 60px rgba(0,0,0,.18);
    backdrop-filter: blur(22px) saturate(130%);
}
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-mark { width: 39px; height: 39px; display: grid; place-items: center; color: var(--night); border-radius: 12px; background: linear-gradient(145deg, var(--coral), #ff9d71); box-shadow: 0 8px 24px rgba(255,116,93,.22); }
.brand-mark svg { width: 25px; fill: currentColor; }
.brand-copy { display: grid; line-height: 1; }
.brand-copy strong { font-size: 17px; letter-spacing: .12em; }
.brand-copy small { margin-top: 5px; color: rgba(255,255,255,.48); font-size: 7px; font-weight: 800; letter-spacing: .25em; }
.site-menu { display: flex; align-items: center; gap: clamp(18px, 2.5vw, 36px); margin: 0 auto; }
.site-menu a { position: relative; color: rgba(255,255,255,.66); font-size: 13px; transition: color .2s; }
.site-menu a::after { content: ""; position: absolute; left: 50%; bottom: -10px; width: 4px; height: 4px; border-radius: 50%; background: var(--lime); opacity: 0; transform: translate(-50%, 5px); transition: opacity .2s, transform .2s; }
.site-menu a:hover, .site-menu a.is-active { color: white; }
.site-menu a:hover::after, .site-menu a.is-active::after { opacity: 1; transform: translate(-50%, 0); }
.nav-entry { min-height: 46px; padding: 0 18px; display: inline-flex; align-items: center; gap: 9px; color: var(--night); background: var(--lime); border-radius: 13px; font-size: 13px; font-weight: 750; transition: transform .2s, box-shadow .2s; }
.nav-entry:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(201,245,107,.2); }
.nav-entry svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.menu-toggle { display: none; margin-left: auto; padding: 8px; border: 0; background: transparent; }
.menu-toggle > span:not(.sr-only) { display: block; width: 24px; height: 1px; margin: 5px 0; background: currentColor; transition: transform .25s, opacity .25s; }

.hero { position: relative; min-height: 930px; padding: 145px 0 42px; color: white; background: var(--night); overflow: hidden; }
.hero-aurora { position: absolute; inset: 0; background: radial-gradient(circle at 75% 15%, rgba(120,104,255,.3), transparent 31%), radial-gradient(circle at 91% 54%, rgba(87,217,234,.16), transparent 28%), radial-gradient(circle at 18% 84%, rgba(255,116,93,.12), transparent 26%), linear-gradient(145deg, #080b18 20%, #0e1229 62%, #090c1b); }
.hero-grid { position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to bottom, #000, transparent 89%); }
.hero-orbit { position: absolute; border: 1px solid rgba(255,255,255,.07); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 740px; height: 740px; right: -300px; top: -270px; }
.orbit-two { width: 420px; height: 420px; left: -230px; bottom: 30px; }
.hero-shell { position: relative; z-index: 2; width: min(1200px, calc(100% - 48px)); min-height: 655px; margin: 0 auto; display: grid; grid-template-columns: .87fr 1.13fr; gap: clamp(50px, 6vw, 88px); align-items: center; }
.hero-copy { position: relative; z-index: 3; }
.platform-pill { width: fit-content; margin: 0 0 27px; padding: 9px 13px; display: flex; align-items: center; gap: 9px; color: rgba(255,255,255,.76); border: 1px solid rgba(255,255,255,.13); border-radius: 999px; background: rgba(255,255,255,.055); font-size: 11px; font-weight: 650; letter-spacing: .05em; }
.platform-pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 14px var(--lime); }
.hero h1 { margin: 0; max-width: 680px; font-size: clamp(54px, 5.4vw, 80px); line-height: 1.06; letter-spacing: -.055em; font-weight: 790; }
.hero h1 span { color: transparent; background: linear-gradient(95deg, #a99dff 0%, #70e1ec 50%, #d7fa8b 100%); background-clip: text; -webkit-background-clip: text; }
.hero-lead { max-width: 580px; margin: 29px 0 0; color: rgba(255,255,255,.66); font-size: 17px; line-height: 1.85; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { min-height: 54px; padding: 0 23px; display: inline-flex; align-items: center; justify-content: center; gap: 15px; border: 1px solid transparent; border-radius: 14px; font-size: 14px; font-weight: 750; transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--night); background: var(--lime); box-shadow: 0 14px 35px rgba(201,245,107,.13); }
.button-primary:hover { box-shadow: 0 17px 40px rgba(201,245,107,.2); }
.button-secondary { color: white; border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.05); }
.button-secondary:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.09); }
.trust-list { margin: 37px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 19px; list-style: none; }
.trust-list li { display: flex; align-items: center; gap: 7px; color: rgba(255,255,255,.48); font-size: 11px; }
.trust-list span { width: 18px; height: 18px; display: grid; place-items: center; color: var(--cyan); border: 1px solid rgba(87,217,234,.25); border-radius: 50%; font-size: 9px; }

.product-visual { position: relative; min-width: 0; min-height: 620px; display: flex; align-items: center; justify-content: center; perspective: 1200px; }
.console-card { position: relative; z-index: 2; width: min(620px, 100%); overflow: hidden; color: var(--ink); border: 1px solid rgba(255,255,255,.28); border-radius: 26px; background: rgba(248,249,255,.97); box-shadow: 0 42px 100px rgba(0,0,0,.4), 0 0 0 8px rgba(255,255,255,.025); transform: rotateY(-3deg) rotateX(1.5deg); transition: transform .5s var(--ease); }
.product-visual:hover .console-card { transform: rotateY(0) rotateX(0) translateY(-5px); }
.console-bar { height: 56px; padding: 0 18px; display: grid; grid-template-columns: 90px 1fr 90px; align-items: center; color: rgba(255,255,255,.68); background: rgba(15,18,39,.97); font-size: 10px; text-align: center; }
.console-dots { display: flex; gap: 6px; }
.console-dots i { width: 7px; height: 7px; border-radius: 50%; background: #ff735d; }
.console-dots i:nth-child(2) { background: #f8ce64; }.console-dots i:nth-child(3) { background: #78d894; }
.console-bar b { display: flex; justify-content: flex-end; align-items: center; gap: 6px; color: #c7ef78; font-size: 9px; font-weight: 650; }
.console-bar b i { width: 6px; height: 6px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 10px var(--lime); }
.console-body { padding: 28px; background: linear-gradient(160deg, #fafbff, #eff1f8); }
.console-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.console-heading p { margin: 0 0 6px; color: #8b91a6; font-size: 8px; font-weight: 800; letter-spacing: .18em; }
.console-heading h2 { margin: 0; font-size: 22px; letter-spacing: -.03em; }
.live-badge { padding: 7px 10px; display: flex; align-items: center; gap: 7px; color: #467224; background: #e5f8c3; border-radius: 999px; font-size: 9px; font-weight: 750; }
.live-badge i { width: 6px; height: 6px; border-radius: 50%; background: #77b936; }
.connection-card { margin-top: 22px; padding: 18px; display: grid; grid-template-columns: 1fr 86px 94px; gap: 12px; align-items: center; border: 1px solid rgba(16,18,38,.08); border-radius: 18px; background: white; box-shadow: 0 12px 30px rgba(20,23,48,.06); }
.connection-brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.mini-rocket { width: 36px; height: 36px; flex: 0 0 auto; display: grid; place-items: center; color: var(--night); border-radius: 11px; background: var(--coral); }
.mini-rocket svg { width: 23px; fill: currentColor; }
.connection-brand div { display: grid; gap: 4px; min-width: 0; }
.connection-brand strong { font-size: 14px; }.connection-brand small { color: #8a90a4; font-size: 8px; white-space: nowrap; }
.connection-line { display: flex; align-items: center; gap: 5px; color: #7b719f; font-size: 7px; }
.connection-line i { height: 1px; flex: 1; background: linear-gradient(90deg, #9e91ff, #59d8e9); }
.wechat-node { height: 49px; display: grid; align-content: center; text-align: center; border-radius: 12px; color: white; background: var(--ink); }
.wechat-node span { font-size: 11px; font-weight: 700; }.wechat-node small { margin-top: 3px; color: rgba(255,255,255,.5); font-size: 7px; }
.console-grid { margin-top: 13px; display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.console-grid article { position: relative; min-height: 104px; padding: 16px; display: grid; align-content: start; border: 1px solid rgba(16,18,38,.075); border-radius: 17px; background: rgba(255,255,255,.78); }
.console-grid small { color: #969bae; font-size: 8px; }.console-grid strong { margin-top: 8px; font-size: 12px; }
.tag { width: fit-content; margin-top: 14px; padding: 5px 7px; border-radius: 6px; font-size: 7px; font-weight: 750; }
.tag-violet { color: #5d50cb; background: #ece9ff; }.tag-cyan { color: #257a87; background: #dff8fa; }
.scope-card { margin-top: 13px; padding: 16px 18px 10px; border: 1px solid rgba(16,18,38,.075); border-radius: 17px; background: rgba(255,255,255,.78); }
.scope-title { display: flex; align-items: center; justify-content: space-between; }.scope-title span { font-size: 11px; font-weight: 750; }.scope-title small { color: #969bae; font-size: 7px; }
.scope-card ul { margin: 10px 0 0; padding: 0; list-style: none; }
.scope-card li { display: grid; grid-template-columns: 9px 1fr auto; gap: 8px; align-items: center; padding: 9px 0; border-top: 1px solid rgba(16,18,38,.06); font-size: 9px; }
.scope-card li b { color: #699431; font-size: 8px; }.scope-icon { width: 7px; height: 7px; border-radius: 2px; }.scope-icon.violet { background: var(--violet); }.scope-icon.cyan { background: var(--cyan); }.scope-icon.lime { background: #9bca45; }
.float-chip { position: absolute; z-index: 3; min-width: 190px; padding: 13px 16px; display: flex; align-items: center; gap: 12px; color: white; border: 1px solid rgba(255,255,255,.15); border-radius: 16px; background: rgba(14,17,37,.76); box-shadow: 0 18px 50px rgba(0,0,0,.22); backdrop-filter: blur(15px); }
.float-chip > span { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 10px; font-size: 13px; }
.float-chip div { display: grid; gap: 4px; }.float-chip small { color: rgba(255,255,255,.42); font-size: 7px; letter-spacing: .11em; }.float-chip strong { font-size: 10px; }
.chip-authorized { left: -28px; top: 88px; }.chip-authorized > span { color: var(--night); background: var(--lime); }
.chip-security { right: -25px; bottom: 74px; }.chip-security > span { color: var(--night); background: var(--cyan); }
.glow-dot { position: absolute; border-radius: 50%; filter: blur(2px); }.glow-one { width: 210px; height: 210px; right: -30px; top: 30px; background: rgba(120,104,255,.23); box-shadow: 0 0 100px rgba(120,104,255,.4); }.glow-two { width: 130px; height: 130px; left: 20px; bottom: 25px; background: rgba(87,217,234,.14); box-shadow: 0 0 80px rgba(87,217,234,.25); }
.identity-rail { position: relative; z-index: 3; width: min(1200px, calc(100% - 48px)); min-height: 92px; margin: 20px auto 0; display: grid; grid-template-columns: .8fr .8fr .9fr 1.5fr; border: 1px solid rgba(255,255,255,.1); border-radius: 20px; background: rgba(255,255,255,.045); backdrop-filter: blur(12px); }
.identity-rail > div { padding: 20px 27px; display: grid; align-content: center; gap: 8px; border-right: 1px solid rgba(255,255,255,.09); }
.identity-rail > div:last-child { border: 0; }.identity-rail small { color: rgba(255,255,255,.4); font-size: 9px; letter-spacing: .08em; }.identity-rail strong { color: white; font-size: 14px; }.identity-appid strong { color: var(--cyan); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }

.section { padding: clamp(95px, 10vw, 145px) 0; }
.section-shell { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow { margin: 0 0 22px; color: #6758e6; font-size: 10px; font-weight: 800; letter-spacing: .17em; }
.section-head { display: grid; grid-template-columns: 210px 1fr; gap: clamp(45px, 8vw, 120px); align-items: start; }
.section-head h2, .section-title h2, .compliance-copy h2, .faq-intro h2 { margin: 0; font-size: clamp(41px, 5.2vw, 68px); line-height: 1.1; letter-spacing: -.052em; }
.section-head > div > p { max-width: 700px; margin: 28px 0 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.section-title { display: grid; grid-template-columns: 1.25fr .75fr; gap: 70px; align-items: end; margin-bottom: 65px; }
.section-title > p { max-width: 460px; margin: 0 0 6px; color: var(--muted); font-size: 15px; line-height: 1.85; }

.platform { background: var(--paper); }
.platform-bento { margin-top: 74px; display: grid; grid-template-columns: 1.12fr .88fr; gap: 20px; }
.story-card, .identity-card { position: relative; min-height: 450px; padding: clamp(32px, 5vw, 58px); overflow: hidden; border-radius: 32px; }
.story-card { color: white; background: radial-gradient(circle at 84% 10%, rgba(120,104,255,.55), transparent 29%), radial-gradient(circle at 20% 100%, rgba(87,217,234,.18), transparent 34%), var(--ink); }
.card-label { display: inline-flex; padding: 8px 11px; color: var(--lime); border: 1px solid rgba(201,245,107,.2); border-radius: 999px; font-size: 10px; font-weight: 750; }
.story-card h3 { position: relative; z-index: 2; max-width: 650px; margin: 70px 0 22px; font-size: clamp(30px, 4vw, 50px); line-height: 1.18; letter-spacing: -.045em; }
.story-card p { position: relative; z-index: 2; max-width: 590px; margin: 0; color: rgba(255,255,255,.59); font-size: 14px; line-height: 1.9; }
.story-lines { position: absolute; right: -80px; bottom: -100px; width: 380px; height: 380px; border: 1px solid rgba(255,255,255,.07); border-radius: 50%; }.story-lines i { position: absolute; inset: 18%; border: 1px solid rgba(255,255,255,.06); border-radius: 50%; }.story-lines i:nth-child(2) { inset: 34%; }.story-lines i:nth-child(3) { inset: 50%; background: var(--coral); border: 0; }.story-lines i:nth-child(4) { inset: auto; left: 17%; top: 21%; width: 9px; height: 9px; background: var(--lime); box-shadow: 0 0 25px var(--lime); }
.identity-card { border: 1px solid var(--line); background: white; box-shadow: 0 28px 70px rgba(25,28,58,.08); }
.identity-card-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 22px; border-bottom: 1px solid var(--line); }.identity-card-head span { font-size: 13px; font-weight: 750; }.identity-card-head i { color: #8275e6; font-size: 8px; font-style: normal; font-weight: 800; letter-spacing: .14em; }
.identity-card dl { margin: 0; }.identity-card dl > div { min-height: 64px; display: grid; grid-template-columns: 110px 1fr; gap: 20px; align-items: center; border-bottom: 1px solid var(--line); }.identity-card dt { color: #9297a8; font-size: 11px; }.identity-card dd { margin: 0; font-size: 14px; font-weight: 750; overflow-wrap: anywhere; }.identity-card code { color: #5e50d2; font: 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }

.capabilities { background: var(--paper-2); }
.service-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.service-card { position: relative; min-height: 340px; grid-column: span 5; padding: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: rgba(255,255,255,.76); }
.service-card:nth-child(3) { grid-column: span 5; }.service-card:nth-child(4) { grid-column: span 7; }
.service-primary { min-height: 480px; grid-column: span 7; color: white; background: linear-gradient(145deg, #6958ef, #8c7dff); border: 0; }
.service-dark { min-height: 480px; color: white; background: var(--ink); border: 0; }
.service-accent { background: #dff5f3; }
.service-number { position: absolute; right: 28px; top: 29px; color: currentColor; opacity: .42; font: 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.service-icon { width: 49px; height: 49px; display: grid; place-items: center; color: var(--ink); border-radius: 15px; background: #ebe9ff; }
.service-primary .service-icon { background: rgba(255,255,255,.18); color: white; }.service-dark .service-icon { color: var(--night); background: var(--lime); }.service-accent .service-icon { background: white; }
.service-icon svg { width: 25px; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.service-card h3 { position: relative; z-index: 2; margin: 31px 0 13px; font-size: 25px; letter-spacing: -.03em; }.service-card p { position: relative; z-index: 2; max-width: 520px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }.service-primary p, .service-dark p { color: rgba(255,255,255,.63); }
.service-art { position: absolute; left: 30px; right: 30px; bottom: 31px; height: 110px; }
.authorization-art { display: grid; grid-template-columns: 105px 1fr 80px; align-items: center; }.authorization-art span, .authorization-art b { height: 53px; display: grid; place-items: center; border-radius: 15px; background: rgba(255,255,255,.14); font-size: 12px; }.authorization-art b { color: var(--ink); background: var(--lime); }.authorization-art i { position: relative; height: 1px; background: rgba(255,255,255,.4); }.authorization-art i::after { content: ""; position: absolute; right: -1px; top: -4px; width: 7px; height: 7px; border-top: 1px solid white; border-right: 1px solid white; transform: rotate(45deg); }
.mini-status { position: absolute; left: 30px; right: 30px; bottom: 31px; padding: 16px; display: grid; grid-template-columns: 9px 1fr auto; gap: 10px; align-items: center; border: 1px solid rgba(255,255,255,.11); border-radius: 15px; background: rgba(255,255,255,.055); font-size: 10px; }.mini-status i { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 13px var(--lime); }.mini-status b { color: var(--lime); font-size: 9px; }
.chart-art { position: absolute; right: 30px; bottom: 25px; width: 43%; height: 110px; display: flex; align-items: end; gap: 8px; opacity: .8; }.chart-art i { flex: 1; height: 30%; border-radius: 6px 6px 0 0; background: linear-gradient(to top, #6d5de7, #8bdde5); }.chart-art i:nth-child(2) { height: 55%; }.chart-art i:nth-child(3) { height: 40%; }.chart-art i:nth-child(4) { height: 85%; }.chart-art i:nth-child(5) { height: 68%; }

.workflow { background: white; }
.timeline { position: relative; margin: 0; padding: 30px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; }
.timeline::before { content: ""; position: absolute; left: 4%; right: 4%; top: 50px; height: 1px; background: linear-gradient(90deg, var(--violet), var(--cyan), var(--lime)); opacity: .45; }
.timeline li { position: relative; padding: 0 28px 0 0; }.timeline li > span { width: 40px; height: 40px; position: relative; z-index: 2; display: grid; place-items: center; color: white; border-radius: 12px; background: var(--ink); box-shadow: 0 0 0 8px white; font: 10px/1 ui-monospace, monospace; }.timeline li:nth-child(2) > span { background: var(--violet); }.timeline li:nth-child(3) > span { color: var(--ink); background: var(--cyan); }.timeline li:nth-child(4) > span { color: var(--ink); background: var(--lime); }
.timeline li > div { margin-top: 37px; padding-top: 24px; border-top: 1px solid var(--line); }.timeline small { color: #9186ef; font-size: 8px; font-weight: 800; letter-spacing: .16em; }.timeline h3 { margin: 11px 0 12px; font-size: 20px; }.timeline p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }

.compliance { color: white; background: var(--night); }
.compliance .eyebrow { color: var(--lime); }
.compliance-shell { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(60px, 9vw, 130px); align-items: start; }
.compliance-copy { position: sticky; top: 125px; }.compliance-copy h2 { font-size: clamp(42px, 5vw, 65px); }.compliance-copy > p:not(.eyebrow) { margin: 29px 0 0; color: rgba(255,255,255,.57); font-size: 14px; line-height: 1.9; }.compliance-copy > a { width: fit-content; margin-top: 34px; padding-bottom: 8px; display: flex; gap: 30px; color: var(--cyan); border-bottom: 1px solid rgba(87,217,234,.35); font-size: 12px; font-weight: 700; }
.principle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }.principle-grid article { position: relative; min-height: 230px; padding: 27px; overflow: hidden; border: 1px solid rgba(255,255,255,.1); border-radius: 24px; background: rgba(255,255,255,.045); }.principle-grid article > span { width: 34px; height: 34px; display: grid; place-items: center; color: var(--lime); border: 1px solid rgba(201,245,107,.2); border-radius: 10px; font: 9px/1 ui-monospace, monospace; }.principle-grid article > div { position: absolute; left: 27px; right: 27px; bottom: 26px; z-index: 2; }.principle-grid h3 { margin: 0 0 10px; font-size: 18px; }.principle-grid p { margin: 0; color: rgba(255,255,255,.48); font-size: 12px; line-height: 1.7; }.principle-grid article > i { position: absolute; right: -3px; top: 24px; color: rgba(255,255,255,.035); font-size: 34px; font-style: normal; font-weight: 900; letter-spacing: -.05em; }

.faq { background: var(--paper); }
.faq-shell { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(60px, 9vw, 130px); }
.faq-intro { position: sticky; top: 125px; align-self: start; }.faq-intro > p:not(.eyebrow) { max-width: 430px; margin: 27px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.faq-list { border-top: 1px solid var(--line); }.faq-list details { border-bottom: 1px solid var(--line); }.faq-list summary { position: relative; padding: 27px 45px 27px 0; list-style: none; cursor: pointer; font-size: 17px; font-weight: 700; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary span::before, .faq-list summary span::after { content: ""; position: absolute; right: 4px; top: 50%; width: 16px; height: 1px; background: var(--ink); transition: transform .25s; }.faq-list summary span::after { transform: rotate(90deg); }.faq-list details[open] summary span::after { transform: rotate(0); }.faq-list details p { max-width: 650px; margin: -4px 50px 26px 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

.cta-section { padding: 0 0 clamp(90px, 10vw, 140px); background: var(--paper); }
.cta-card { position: relative; min-height: 350px; padding: clamp(40px, 6vw, 75px); display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: center; overflow: hidden; color: white; border-radius: 34px; background: radial-gradient(circle at 85% 0%, rgba(87,217,234,.3), transparent 32%), radial-gradient(circle at 10% 100%, rgba(201,245,107,.15), transparent 30%), linear-gradient(135deg, #6556e7, #2c285c); }.cta-card::after { content: ""; position: absolute; width: 330px; height: 330px; right: -150px; bottom: -190px; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; box-shadow: 0 0 0 50px rgba(255,255,255,.025), 0 0 0 100px rgba(255,255,255,.018); }.cta-card > * { position: relative; z-index: 2; }.cta-card .eyebrow { color: var(--lime); }.cta-card h2 { margin: 0; max-width: 670px; font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: -.05em; }.cta-card p:not(.eyebrow) { margin: 20px 0 0; color: rgba(255,255,255,.61); font-size: 14px; }.cta-actions { justify-content: flex-end; }.button-light { color: var(--ink); background: white; }.button-outline { color: white; border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.05); }

.site-footer { padding: 50px 0 28px; color: white; background: #070914; }
.footer-main { padding-bottom: 34px; display: grid; grid-template-columns: 1fr auto auto; gap: 35px; align-items: center; }.footer-main > p { margin: 0; color: rgba(255,255,255,.42); font-size: 11px; }.footer-links { display: flex; gap: 25px; color: rgba(255,255,255,.58); font-size: 11px; }.footer-links a:hover { color: var(--lime); }.footer-bottom { padding-top: 26px; display: flex; justify-content: space-between; gap: 25px; border-top: 1px solid rgba(255,255,255,.09); color: rgba(255,255,255,.32); font-size: 10px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
    .site-menu { gap: 18px; }
    .hero-shell { grid-template-columns: .84fr 1.16fr; gap: 35px; }
    .console-card { transform: none; }
    .float-chip { display: none; }
    .platform-bento { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
    .nav-entry { display: none; }
    .hero { padding-top: 130px; }
    .hero-shell { grid-template-columns: 1fr; }
    .hero-copy { max-width: 760px; }
    .product-visual { min-height: 590px; }
    .console-card { width: min(650px, 94%); }
    .identity-rail { grid-template-columns: 1fr 1fr; }.identity-rail > div:nth-child(2) { border-right: 0; }.identity-rail > div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.09); }
    .section-head { grid-template-columns: 1fr; gap: 20px; }
    .platform-bento { grid-template-columns: 1fr; }
    .story-card, .identity-card { min-height: 420px; }
    .service-primary, .service-dark, .service-card:nth-child(3), .service-card:nth-child(4) { grid-column: span 6; }
    .service-primary, .service-dark { min-height: 450px; }
    .compliance-shell { grid-template-columns: 1fr; }.compliance-copy { position: static; }
    .faq-shell { grid-template-columns: 1fr; }.faq-intro { position: static; }
    .cta-card { grid-template-columns: 1fr; }.cta-actions { justify-content: flex-start; }
}

@media (max-width: 720px) {
    html { scroll-padding-top: 80px; }
    .site-header { padding-top: 9px; }
    .nav-shell { width: calc(100% - 24px); height: 60px; padding: 0 9px 0 12px; border-radius: 17px; }
    .brand-mark { width: 36px; height: 36px; }.brand-copy strong { font-size: 15px; }
    .menu-toggle { display: block; }.menu-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(6px) rotate(45deg); }.menu-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }.menu-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
    .site-menu { position: fixed; inset: 78px 12px auto; display: grid; gap: 0; padding: 12px 20px 19px; border: 1px solid rgba(255,255,255,.1); border-radius: 17px; background: rgba(8,11,24,.97); box-shadow: 0 25px 60px rgba(0,0,0,.38); transform: translateY(-18px); opacity: 0; visibility: hidden; transition: transform .25s var(--ease), opacity .25s, visibility .25s; }
    .site-menu.is-open { transform: none; opacity: 1; visibility: visible; }.site-menu a { padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.08); font-size: 14px; }.site-menu a:last-child { border: 0; }.site-menu a::after { display: none; }
    .hero { min-height: auto; padding: 106px 0 30px; }
    .hero-shell, .identity-rail, .section-shell { width: calc(100% - 32px); }
    .hero-shell { min-height: 0; gap: 50px; }
    .platform-pill { margin-bottom: 22px; font-size: 9px; }
    .hero h1 { font-size: clamp(45px, 13vw, 62px); }
    .hero-lead { margin-top: 23px; font-size: 14px; }
    .hero-actions { margin-top: 28px; }.hero-actions .button { flex: 1 1 150px; }
    .trust-list { gap: 12px; margin-top: 28px; }.trust-list li { font-size: 9px; }
    .product-visual { min-height: 490px; margin: 0 -7px; align-items: flex-start; }
    .console-card { width: 100%; border-radius: 21px; }
    .console-bar { height: 48px; padding: 0 13px; grid-template-columns: 66px 1fr 70px; font-size: 8px; }.console-bar b { font-size: 7px; }
    .console-body { padding: 18px; }.console-heading h2 { font-size: 18px; }.live-badge { padding: 6px 8px; font-size: 7px; }
    .connection-card { padding: 13px; grid-template-columns: 1fr 50px 69px; gap: 7px; }.mini-rocket { width: 32px; height: 32px; }.connection-brand small { display: none; }.connection-line span { display: none; }.wechat-node { height: 43px; }.wechat-node span { font-size: 9px; }
    .console-grid { gap: 9px; }.console-grid article { min-height: 92px; padding: 13px; }.scope-card { padding: 13px 14px 8px; }
    .identity-rail { margin-top: 24px; border-radius: 17px; }.identity-rail > div { min-height: 75px; padding: 15px 17px; }.identity-rail strong { font-size: 12px; }.identity-appid strong { font-size: 9px; }
    .section { padding: 88px 0; }
    .section-head h2, .section-title h2, .compliance-copy h2, .faq-intro h2 { font-size: 39px; }
    .section-head > div > p { margin-top: 22px; font-size: 14px; }
    .section-title { grid-template-columns: 1fr; gap: 22px; margin-bottom: 43px; }.section-title > p { font-size: 13px; }
    .platform-bento { margin-top: 45px; }.story-card, .identity-card { min-height: auto; padding: 28px; border-radius: 24px; }.story-card { min-height: 430px; }.story-card h3 { margin-top: 70px; font-size: 33px; }.identity-card dl > div { grid-template-columns: 95px 1fr; }
    .service-grid { grid-template-columns: 1fr; }.service-primary, .service-dark, .service-card:nth-child(3), .service-card:nth-child(4) { min-height: 350px; grid-column: auto; }.service-primary, .service-dark { min-height: 430px; }.service-card { padding: 26px; border-radius: 23px; }.service-card h3 { margin-top: 26px; }.service-art, .mini-status { left: 26px; right: 26px; bottom: 27px; }.chart-art { opacity: .28; width: 48%; }
    .timeline { padding: 0 0 0 4px; grid-template-columns: 1fr; gap: 0; }.timeline::before { left: 23px; right: auto; top: 10px; bottom: 40px; width: 1px; height: auto; }.timeline li { min-height: 180px; padding: 0 0 25px 78px; }.timeline li > span { position: absolute; left: 0; top: 0; box-shadow: 0 0 0 7px white; }.timeline li > div { margin: 0; padding: 0 0 28px; border-top: 0; border-bottom: 1px solid var(--line); }
    .principle-grid { grid-template-columns: 1fr; }.principle-grid article { min-height: 190px; }
    .faq-shell { gap: 45px; }.faq-list summary { font-size: 15px; }.faq-list details p { margin-right: 24px; }
    .cta-section { padding-bottom: 80px; }.cta-card { min-height: 420px; padding: 31px; border-radius: 26px; gap: 35px; }.cta-card h2 { font-size: 40px; }.cta-actions { margin-top: 0; }.cta-actions .button { width: 100%; }
    .footer-main { grid-template-columns: 1fr; justify-items: start; gap: 23px; }.footer-links { flex-wrap: wrap; gap: 15px 22px; }.footer-bottom { flex-direction: column; }
}

@media (max-width: 420px) {
    .hero-actions .button { width: 100%; }
    .product-visual { min-height: 460px; }
    .console-grid strong { font-size: 10px; }
    .scope-title small { display: none; }
    .identity-rail { grid-template-columns: 1fr 1fr; }
    .identity-rail > div { padding: 13px; }
    .story-card h3 { font-size: 30px; }
    .authorization-art { grid-template-columns: 84px 1fr 65px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    .reveal { opacity: 1; transform: none; }
    .console-card { transform: none; }
}