:root {
    --ink-950: #11152d;
    --ink-900: #171b35;
    --ink-700: #414760;
    --ink-500: #71778f;
    --line: #e9eaf3;
    --surface: #ffffff;
    --surface-soft: #f8f8fc;
    --purple-700: #5a43d6;
    --purple-600: #6852e5;
    --purple-500: #8067ee;
    --purple-100: #eeebff;
    --blue-600: #3972e8;
    --cyan-500: #31a9d7;
    --green-500: #4ab79c;
    --shadow-sm: 0 4px 20px -4px rgba(29, 25, 70, .08);
    --shadow-lg: 0 24px 70px -24px rgba(75, 53, 168, .24);
    --radius-lg: 24px;
    --radius-md: 18px;
    --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
    margin: 0;
    min-width: 320px;
    color: var(--ink-900);
    background: var(--surface);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.65;
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin-top: 0; }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 16px; color: #fff; background: var(--ink-950); border-radius: 9px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
a:focus-visible { outline: 3px solid rgba(104, 82, 229, .45); outline-offset: 4px; border-radius: 6px; }

.site-header { position: sticky; z-index: 20; top: 0; color: var(--ink-900); background: rgba(255, 255, 255, .98); border-bottom: 1px solid rgba(233, 234, 243, .95); }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; letter-spacing: -.025em; }
.brand-name { font-size: 20px; }
.brand-mark { position: relative; display: inline-block; width: 34px; height: 30px; overflow: hidden; border-radius: 9px; background: linear-gradient(145deg, #4479ec 2%, #7654ec 55%, #9c72ee 100%); box-shadow: 0 7px 16px rgba(104, 82, 229, .22); }
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; width: 8px; height: 28px; top: 1px; border-radius: 8px; background: rgba(255,255,255,.92); transform: rotate(-36deg); }
.brand-mark::before { left: 8px; }
.brand-mark::after { right: 7px; opacity: .52; }
.brand-mark span { display: none; }
.site-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 42px); color: #5c6177; font-size: 14px; }
.site-nav a { position: relative; padding: 12px 2px; transition: color .2s ease; }
.site-nav a::after { content: ""; position: absolute; right: 0; bottom: 7px; left: 0; height: 2px; border-radius: 2px; background: var(--purple-600); transform: scaleX(0); transition: transform .2s ease; }
.site-nav a:hover { color: var(--purple-700); }
.site-nav a:hover::after { transform: scaleX(1); }

.hero { position: relative; padding: 98px 0 88px; overflow: hidden; isolation: isolate; background: radial-gradient(circle at 50% 20%, rgba(126, 102, 238, .15), transparent 29%), radial-gradient(circle at 16% 48%, rgba(68, 121, 236, .08), transparent 23%), linear-gradient(180deg, #fff 0%, #fdfcff 66%, #f8f8fc 100%); }
.hero::before { content: ""; position: absolute; z-index: -1; top: 48px; left: 50%; width: 760px; height: 430px; border-radius: 50%; background: rgba(235, 229, 255, .48); filter: blur(82px); transform: translateX(-50%); }
.hero::after { content: ""; position: absolute; z-index: -1; top: 28px; left: 50%; width: min(900px, 90vw); height: 420px; opacity: .32; background-image: radial-gradient(rgba(104, 82, 229, .34) .75px, transparent .75px); background-size: 22px 22px; mask-image: radial-gradient(ellipse, #000 0%, transparent 68%); transform: translateX(-50%); }
.hero-layout { text-align: center; }
.hero-copy { position: relative; max-width: 970px; margin-inline: auto; }
.eyebrow, .section-label { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 20px; color: var(--purple-700); font-size: 12px; font-weight: 700; letter-spacing: .09em; }
.eyebrow { padding: 7px 14px; border: 1px solid #dfdafb; border-radius: 999px; background: rgba(255,255,255,.78); box-shadow: 0 5px 16px rgba(71, 49, 155, .05); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--purple-500); box-shadow: 0 0 0 5px rgba(128, 103, 238, .12); }
.hero h1 { margin-bottom: 23px; font-size: clamp(44px, 4.2vw, 56px); line-height: 1.16; letter-spacing: -.04em; font-weight: 700; }
.hero h1 span { color: transparent; background: linear-gradient(92deg, #3972e8 8%, #6852e5 52%, #9365e7 92%); background-clip: text; -webkit-background-clip: text; }
.hero-lead { max-width: 760px; margin: 0 auto 27px; color: var(--ink-500); font-size: 17px; line-height: 1.9; }
.hero-actions { margin: 0 0 24px; display: flex; flex-wrap: wrap; justify-content: center; gap: 11px; }
.hero-actions a { min-height: 48px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; border-radius: 14px; font-size: 14px; font-weight: 750; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.hero-actions a:hover { transform: translateY(-2px); }
.hero-primary { min-width: 245px; color: #fff; border: 1px solid #6b5ee2; background: linear-gradient(105deg, #3972e8, #7355e6 68%, #8d63e8); box-shadow: 0 18px 34px -20px rgba(80,60,204,.78); }
.hero-primary i { font-size: 18px; font-style: normal; font-weight: 400; }
.hero-secondary { min-width: 160px; color: var(--ink-700); border: 1px solid #ddd9ef; background: rgba(255,255,255,.82); box-shadow: 0 12px 28px -24px rgba(43,38,91,.38); }
.hero-secondary:hover { color: var(--purple-700); border-color: #cfc8f6; }
.hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; margin: 0; padding: 0; list-style: none; }
.hero-tags li { padding: 7px 13px; color: #625d7c; border: 1px solid #e7e3f6; border-radius: 999px; background: rgba(255,255,255,.76); font-size: 12px; }
.hero-metrics { max-width: 940px; margin: 74px auto 0; }
.metrics-label { margin-bottom: 20px; color: #74798e; font-size: 12px; font-weight: 700; letter-spacing: .14em; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.metric-card { position: relative; padding: 7px 30px; }
.metric-card + .metric-card::before { content: ""; position: absolute; top: 8px; bottom: 8px; left: 0; width: 1px; background: #deddea; }
.metric-card strong { display: block; margin-bottom: 7px; color: var(--ink-950); font-size: clamp(29px, 3.1vw, 42px); line-height: 1; letter-spacing: -.045em; }
.metric-card h3 { margin-bottom: 3px; font-size: 14px; }
.metric-card p { margin-bottom: 0; color: #74798e; font-size: 12px; }

.section { padding: 108px 0; }
.section-intro { max-width: 710px; margin: 0 auto 50px; text-align: center; }
.section-label { justify-content: center; margin-bottom: 13px; padding: 5px 12px; border-radius: 999px; background: var(--purple-100); }
.section-intro h2 { margin-bottom: 16px; font-size: clamp(32px, 4vw, 48px); line-height: 1.2; letter-spacing: -.04em; }
.section-intro > p:last-child { margin-bottom: 0; color: var(--ink-500); font-size: 15px; }
.capabilities { background: var(--surface); }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.capability-card { --accent: var(--blue-600); --accent-soft: #edf4ff; position: relative; min-height: 360px; padding: 34px 28px 28px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; }
.capability-card::before { content: ""; position: absolute; top: 0; right: 0; left: 0; height: 5px; background: var(--accent); }
.capability-card:nth-child(2) { --accent: #7558e8; --accent-soft: #f1edff; }
.capability-card:nth-child(3) { --accent: #31a9d7; --accent-soft: #eaf9fd; }
.capability-card:nth-child(4) { --accent: #4ab79c; --accent-soft: #ebf8f4; }
.capability-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.card-index { position: absolute; top: 29px; right: 26px; color: #b6b6c7; font: 650 10px ui-monospace, monospace; }
.card-icon { display: grid; width: 58px; height: 58px; margin-bottom: 36px; place-items: center; color: var(--accent); border-radius: 16px; background: var(--accent-soft); font-size: 26px; font-weight: 700; }
.capability-card h3 { margin-bottom: 13px; font-size: 21px; letter-spacing: -.02em; }
.capability-card p { margin-bottom: 46px; color: var(--ink-500); font-size: 13px; line-height: 1.85; }
.card-note { position: absolute; bottom: 27px; left: 28px; color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: .12em; }

.architecture { background: radial-gradient(circle at 15% 24%, rgba(122, 91, 229, .11), transparent 27%), linear-gradient(135deg, #f6f4ff 0%, #f8faff 54%, #f3f8ff 100%); }
.architecture-grid { display: grid; grid-template-columns: .86fr 1.14fr; align-items: center; gap: clamp(62px, 8vw, 110px); }
.architecture-copy { margin: 0; text-align: left; }
.architecture-copy .section-label { justify-content: flex-start; }
.architecture-copy h2 { font-size: clamp(34px, 4vw, 49px); }
.architecture-copy > p:last-of-type { color: var(--ink-500); }
.architecture-points { display: grid; gap: 15px; margin: 34px 0 0; padding: 0; list-style: none; color: #555c75; font-size: 13px; }
.architecture-points li { display: flex; align-items: center; gap: 13px; }
.architecture-points span { display: grid; flex: 0 0 27px; width: 27px; height: 27px; place-items: center; color: var(--purple-700); border-radius: 8px; background: #fff; box-shadow: var(--shadow-sm); font: 700 9px ui-monospace, monospace; }
.flow { position: relative; display: grid; gap: 11px; margin: 0; padding: 0; list-style: none; }
.flow::before { content: ""; position: absolute; top: 42px; bottom: 42px; left: 31px; width: 2px; background: linear-gradient(var(--purple-500), rgba(104,82,229,.12)); }
.flow li { position: relative; display: flex; align-items: center; gap: 22px; min-height: 104px; padding: 20px 24px 20px 18px; border: 1px solid rgba(219,216,237,.9); border-radius: 18px; background: rgba(255,255,255,.88); box-shadow: var(--shadow-sm); }
.flow-number { z-index: 1; display: grid; flex: 0 0 27px; width: 27px; height: 27px; place-items: center; color: #fff; border-radius: 50%; background: linear-gradient(145deg, var(--purple-600), #8a69ec); box-shadow: 0 0 0 7px #fff; font: 700 9px ui-monospace, monospace; }
.flow div { min-width: 0; }
.flow small { display: block; color: var(--purple-600); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.flow strong { display: block; margin: 2px 0; font-size: 16px; }
.flow p { margin: 0; color: #8a8fa3; font-size: 12px; }

.scenarios { background: var(--surface); }
.section-intro.centered { text-align: center; }
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.scenario-grid article { position: relative; min-width: 0; padding: 30px 26px 32px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; transition: border-color .2s ease, background .2s ease; }
.scenario-grid article:hover { border-color: #d9d2f7; background: #fcfbff; }
.scenario-grid span { color: var(--purple-600); font: 700 10px ui-monospace, monospace; }
.scenario-grid h3 { margin: 27px 0 10px; font-size: 18px; }
.scenario-grid p { margin-bottom: 0; color: var(--ink-500); font-size: 13px; line-height: 1.8; }
.trust-strip { padding: 0 0 88px; background: var(--surface); }
.trust-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 38px 46px; color: #fff; border-radius: var(--radius-lg); background: linear-gradient(110deg, #3e67dc 0%, #684fdf 52%, #7958de 100%); box-shadow: 0 22px 55px -24px rgba(83, 59, 202, .55); }
.trust-inner p { display: flex; flex-direction: column; margin: 0; }
.trust-inner strong { font-size: 20px; }
.trust-inner p span { color: rgba(255,255,255,.7); font-size: 12px; }
.trust-badges { display: flex; gap: 8px; }
.trust-badges span { padding: 7px 10px; border: 1px solid rgba(255,255,255,.24); border-radius: 8px; color: rgba(255,255,255,.76); background: rgba(255,255,255,.08); font: 650 8px ui-monospace, monospace; letter-spacing: .1em; }

.site-footer { padding: 54px 0; color: #fff; background: var(--ink-950); }
.footer-inner { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 24px 60px; }
.footer-brand { margin-bottom: 14px; }
.footer-inner > div p { margin-bottom: 0; color: rgba(255,255,255,.46); font-size: 12px; }
.footer-inner nav { display: flex; gap: 28px; color: rgba(255,255,255,.58); font-size: 12px; }
.footer-inner nav a:hover { color: #fff; }
.copyright { grid-column: 1 / -1; margin: 8px 0 0; padding-top: 22px; color: rgba(255,255,255,.28); border-top: 1px solid rgba(255,255,255,.08); font-size: 11px; }

@media (max-width: 1024px) {
    .capability-grid, .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .architecture-grid { gap: 54px; }
}
@media (max-width: 800px) {
    .container { width: min(calc(100% - 32px), var(--container)); }
    .header-inner { min-height: 70px; }
    .site-nav { gap: 16px; font-size: 12px; }
    .hero { padding: 78px 0 72px; }
    .hero h1 { font-size: clamp(39px, 7.2vw, 52px); }
    .hero-metrics { margin-top: 58px; }
    .metric-card { padding-inline: 18px; }
    .section { padding: 88px 0; }
    .architecture-grid { grid-template-columns: 1fr; gap: 48px; }
    .architecture-copy { max-width: 680px; }
    .trust-inner { align-items: flex-start; flex-direction: column; gap: 22px; }
}
@media (max-width: 560px) {
    html { scroll-padding-top: 112px; }
    .header-inner { align-items: flex-start; flex-direction: column; justify-content: center; gap: 2px; padding: 12px 0 9px; }
    .brand-name { font-size: 18px; }
    .brand-mark { width: 31px; height: 27px; }
    .site-nav { width: 100%; justify-content: space-between; }
    .site-nav a { padding-block: 7px; }
    .hero { padding: 65px 0 62px; }
    .hero::before { width: 440px; height: 330px; }
    .eyebrow { margin-bottom: 17px; font-size: 10px; }
    .hero h1 { margin-bottom: 20px; font-size: clamp(34px, 9.2vw, 40px); line-height: 1.2; }
    .hero-lead { font-size: 15px; line-height: 1.8; }
    .hero-actions { display: grid; }
    .hero-actions a { width: 100%; min-width: 0; }
    .hero-tags { gap: 7px; }
    .hero-tags li { padding: 6px 10px; }
    .hero-metrics { margin-top: 49px; }
    .metric-grid { grid-template-columns: 1fr; gap: 0; }
    .metric-card { padding: 22px 10px; }
    .metric-card + .metric-card::before { top: 0; right: 24%; bottom: auto; left: 24%; width: auto; height: 1px; }
    .metric-card strong { font-size: 34px; }
    .section-intro { margin-bottom: 37px; }
    .section-intro h2 { font-size: 32px; }
    .capability-grid, .scenario-grid { grid-template-columns: 1fr; }
    .capability-card { min-height: 330px; }
    .architecture-copy h2 { font-size: 32px; }
    .flow li { padding-right: 16px; }
    .trust-strip { padding-bottom: 68px; }
    .trust-inner { padding: 30px 25px; }
    .trust-badges { flex-wrap: wrap; }
    .footer-inner { grid-template-columns: 1fr; align-items: start; }
    .footer-inner nav { flex-wrap: wrap; gap: 12px 24px; }
    .copyright { grid-column: auto; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}