:root {
  --navy: #061633;
  --navy-2: #0a224b;
  --blue: #2368f5;
  --cyan: #34d7ff;
  --violet: #7668ff;
  --ink: #0b1c3a;
  --muted: #64738b;
  --line: #dce6f2;
  --surface: #f4f8fc;
  --white: #fff;
  --shadow: 0 18px 48px rgba(10, 42, 91, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif; font-size: 16px; line-height: 1.7; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.site-header { position: sticky; top: 0; z-index: 50; height: 76px; background: rgba(5, 20, 48, .95); border-bottom: 1px solid rgba(255,255,255,.09); backdrop-filter: blur(16px); }
.header-inner { max-width: 1440px; height: 100%; margin: auto; padding: 0 34px; display: flex; align-items: center; gap: 34px; }
.brand { display: flex; align-items: center; gap: 11px; color: #fff; min-width: 196px; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: linear-gradient(145deg,#1675ff,#28d5ed); box-shadow: 0 8px 24px rgba(35,126,255,.34); }
.brand-mark svg { width: 30px; height: 30px; stroke: white; }
.brand strong { display: block; font-size: 18px; line-height: 1.2; letter-spacing: .08em; }
.brand small { display: block; font-size: 11px; color: #8da7cc; letter-spacing: .08em; margin-top: 2px; }
.nav { flex: 1; height: 100%; display: flex; align-items: center; justify-content: center; gap: clamp(18px, 2.1vw, 36px); white-space: nowrap; }
.nav a { height: 100%; display: flex; align-items: center; position: relative; color: #a9bad6; font-size: 14px; transition: .25s; }
.nav a:hover, .nav a.active { color: #fff; }
.nav a.active::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 22px; height: 3px; transform: translateX(-50%); border-radius: 3px 3px 0 0; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.header-action { padding: 9px 15px; border: 1px solid rgba(90,213,255,.42); border-radius: 7px; color: #e7fbff; font-size: 13px; transition: .25s; }
.header-action:hover { background: rgba(52,215,255,.12); border-color: var(--cyan); }
.header-action span { color: var(--cyan); margin-left: 6px; }
.hero { position: relative; height: min(700px, calc(100vh - 76px)); min-height: 580px; overflow: hidden; background: var(--navy); }
.hero-track, .hero-slide { position: absolute; inset: 0; }
.hero-slide { opacity: 0; pointer-events: none; transition: opacity .7s ease; }
.hero-slide.active { opacity: 1; pointer-events: auto; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.025); transition: transform 6s ease; }
.hero-slide.active img { transform: scale(1); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,16,40,.98) 0%, rgba(6,26,63,.88) 36%, rgba(5,20,47,.24) 72%, rgba(5,18,42,.12) 100%), linear-gradient(0deg, rgba(4,17,40,.38), transparent 55%); }
.hero-content { position: relative; z-index: 2; max-width: 1440px; margin: auto; padding: 116px 60px 0; color: #fff; }
.eyebrow, .section-kicker { margin: 0 0 18px; color: #1ca3d4; font-size: 12px; font-weight: 700; letter-spacing: .22em; }
.eyebrow { color: #8edff3; display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 29px; height: 2px; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.hero h1 { margin: 0; font-size: clamp(52px, 5.1vw, 78px); line-height: 1.15; letter-spacing: -.04em; font-weight: 700; }
.hero h1 em { color: transparent; -webkit-text-stroke: 1px rgba(139,230,255,.92); font-style: normal; text-shadow: 0 0 28px rgba(51,202,255,.12); }
.hero-copy { max-width: 610px; margin: 28px 0 36px; color: #b8c8e1; font-size: 18px; line-height: 1.85; }
.primary-button { display: inline-flex; align-items: center; gap: 30px; padding: 13px 18px 13px 22px; color: #fff; background: linear-gradient(135deg,#1464f5,#14b8e6); border-radius: 6px; box-shadow: 0 12px 30px rgba(18,111,243,.3); transition: transform .25s, box-shadow .25s; }
.primary-button:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(18,111,243,.4); }
.primary-button span { font-size: 21px; }
.hero-controls { position: absolute; z-index: 4; left: max(60px, calc((100vw - 1320px)/2)); bottom: 82px; display: flex; align-items: center; gap: 14px; color: #fff; }
.arrow { width: 38px; height: 38px; display: grid; place-items: center; color: #fff; background: rgba(5,20,48,.54); border: 1px solid rgba(255,255,255,.2); border-radius: 50%; cursor: pointer; transition: .2s; }
.arrow:hover { border-color: var(--cyan); background: rgba(35,104,245,.45); }
.hero-dots { display: flex; gap: 7px; }
.dot { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 6px; background: rgba(255,255,255,.38); cursor: pointer; transition: .25s; }
.dot.active { width: 30px; background: var(--cyan); }
.slide-count { font-size: 12px; color: #8297b7; margin: 0 4px; }
.slide-count b { color: #fff; font-size: 15px; }
.hero-quick { position: absolute; z-index: 4; right: 0; bottom: 0; min-width: 60%; height: 58px; display: flex; align-items: center; justify-content: center; gap: 0; color: #d9e8f9; background: rgba(7,25,58,.84); border-top: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(12px); }
.hero-quick span { color: #65d9f4; font-size: 12px; font-weight: 700; letter-spacing: .1em; padding: 0 26px; }
.hero-quick a { padding: 0 26px; border-left: 1px solid rgba(255,255,255,.12); font-size: 13px; transition: .2s; }
.hero-quick a:hover { color: var(--cyan); }
.intro-shell { max-width: 1320px; margin: 0 auto; padding: 92px 42px 82px; display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 80px; }
.intro h2, .section-heading h2, .split-copy h2, .immersive-copy h2, .closing-cta h2 { margin: 0; color: var(--ink); font-size: clamp(34px, 3.2vw, 48px); line-height: 1.25; letter-spacing: -.03em; }
.intro > p:last-child { max-width: 720px; color: var(--muted); font-size: 17px; }
.intro-metrics { display: grid; grid-template-columns: repeat(3,1fr); border-left: 1px solid var(--line); }
.intro-metrics div { padding: 7px 22px; border-right: 1px solid var(--line); }
.intro-metrics strong { display: block; font-size: 30px; color: #176df5; line-height: 1.1; }
.intro-metrics span { display: block; color: var(--muted); font-size: 12px; margin-top: 10px; }
.product-section { padding: 92px max(42px, calc((100vw - 1236px)/2)); scroll-margin-top: 75px; }
.section-square { background: var(--surface); }
.section-heading { display: grid; grid-template-columns: 62px 1fr auto; align-items: start; gap: 26px; margin-bottom: 42px; }
.section-number { width: 50px; height: 50px; display: grid; place-items: center; background: #e5f3ff; color: #1872ef; border-radius: 7px; font-size: 14px; font-weight: 800; letter-spacing: .08em; }
.section-heading .section-kicker { margin-bottom: 8px; }
.section-heading h2 { font-size: 40px; }
.section-heading p:last-child { max-width: 800px; color: var(--muted); margin: 14px 0 0; }
.section-tag { align-self: center; color: #4e6f9f; background: #eef5ff; border: 1px solid #d9e7fa; border-radius: 30px; padding: 7px 14px; font-size: 12px; }
.cards-grid { display: grid; gap: 20px; }
.cards-grid--feature { grid-template-columns: 1.35fr 1fr 1fr; }
.cards-grid--four { grid-template-columns: repeat(4, 1fr); }
.cards-grid--three { grid-template-columns: repeat(3, 1fr); }
.app-card { position: relative; min-height: 285px; padding: 30px; display: flex; flex-direction: column; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: transform .3s, box-shadow .3s, border-color .3s; }
.app-card::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: linear-gradient(90deg,var(--blue),var(--cyan)); transform: scaleX(0); transform-origin: left; transition: .3s; }
.app-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #bdd8f9; }
.app-card:hover::after { transform: scaleX(1); }
.feature-card { padding-right: 34%; background: linear-gradient(130deg,#fff 0%,#f3fbff 100%); }
.feature-card::before { content: ""; position: absolute; width: 220px; height: 220px; right: -60px; top: -50px; border: 30px solid rgba(34,160,255,.09); border-radius: 50%; box-shadow: 0 0 0 24px rgba(52,215,255,.05); }
.card-icon { width: 54px; height: 54px; padding: 13px; display: grid; place-items: center; border-radius: 12px; margin-bottom: 26px; }
.card-icon.cyan { color: #05a9d7; background: #e2f9ff; }
.card-icon.blue { color: #2368f5; background: #e8f0ff; }
.card-icon.violet { color: #7064ed; background: #efedff; }
.card-icon.amber { color: #d88a1a; background: #fff4df; }
.card-label { color: #2b7ae7; font-size: 12px; font-weight: 700; letter-spacing: .06em; }
.app-card h3 { margin: 8px 0 9px; color: #102343; font-size: 20px; line-height: 1.35; }
.app-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.card-link { margin-top: auto; padding: 18px 0 0; color: #23558f; background: none; border: 0; font-size: 13px; font-weight: 700; cursor: pointer; }
.card-link span { display: inline-block; color: #1799d2; font-size: 17px; margin-left: 7px; transition: transform .2s; }
.card-link:hover span { transform: translate(3px,-3px); }
.section-workbench { background: #fff; }
.split-section { display: grid; grid-template-columns: .78fr 1.22fr; gap: 82px; background: linear-gradient(130deg,#061a3f 0%,#0a2e63 100%); color: #fff; overflow: hidden; }
.split-copy { position: relative; align-self: center; }
.split-copy::before { content: ""; position: absolute; width: 400px; height: 400px; left: -240px; top: -160px; border-radius: 50%; background: radial-gradient(circle,rgba(30,190,250,.18),transparent 68%); }
.split-copy .section-number { color: var(--cyan); background: rgba(52,215,255,.1); border: 1px solid rgba(52,215,255,.2); margin-bottom: 28px; }
.split-copy h2 { color: #fff; }
.split-copy > p:not(.section-kicker) { color: #adc2dd; font-size: 16px; margin-top: 22px; }
.audience-list { display: flex; gap: 10px; margin-top: 32px; }
.audience-list span { padding: 5px 15px; color: #a8eafa; background: rgba(43,183,226,.1); border: 1px solid rgba(72,206,244,.23); border-radius: 30px; font-size: 12px; }
.cards-stack { display: grid; gap: 14px; }
.app-card.horizontal { min-height: 150px; padding: 22px 24px; display: grid; grid-template-columns: 58px 1fr auto; align-items: center; gap: 20px; background: rgba(255,255,255,.98); }
.horizontal .card-icon { margin: 0; }
.horizontal h3 { margin-top: 5px; }
.horizontal .card-link { margin: 0; padding: 10px 0 10px 16px; }
.section-immersive { padding-top: 96px; background: #f7faff; }
.immersive-banner { position: relative; min-height: 430px; border-radius: 14px; overflow: hidden; }
.immersive-banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.immersive-overlay { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(4,20,49,.97) 0%,rgba(5,26,61,.76) 48%,rgba(5,20,45,.08) 100%); }
.immersive-copy { position: relative; z-index: 2; max-width: 690px; padding: 58px; color: #fff; }
.section-number.light { margin-bottom: 24px; color: var(--cyan); background: rgba(52,215,255,.1); border: 1px solid rgba(52,215,255,.2); }
.immersive-copy h2 { color: #fff; }
.immersive-copy > p:last-child { color: #b9c9dc; margin-top: 20px; font-size: 16px; }
.immersive-cards { position: relative; z-index: 3; margin: -55px 40px 0; }
.immersive-cards .app-card { min-height: 260px; box-shadow: 0 18px 40px rgba(10,42,91,.11); }
.card-index { position: absolute; top: 24px; right: 26px; color: #d8e4f2; font-size: 28px; font-weight: 800; }
.closing-cta { padding: 86px 32px; text-align: center; color: #fff; background: linear-gradient(115deg,#125dec,#08a6d7); }
.closing-cta .section-kicker { color: #a9edff; }
.closing-cta h2 { color: #fff; font-size: 38px; }
.closing-cta > p:not(.section-kicker) { color: #d6efff; margin: 16px 0 28px; }
.light-button { color: #135fbb; background: #fff; box-shadow: 0 12px 28px rgba(0,49,125,.18); }
footer { min-height: 170px; padding: 44px max(42px, calc((100vw - 1236px)/2)); display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 40px; color: #7f94b2; background: #05142f; font-size: 13px; }
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.brand-mark.small { width: 38px; height: 38px; }
.footer-brand strong, .footer-brand small { display: block; }
.footer-brand small { color: #7891b7; font-size: 10px; }
footer > p { text-align: center; }
footer > a { color: #b8d8f3; }
.toast { position: fixed; z-index: 100; right: 28px; bottom: 28px; min-width: 300px; padding: 15px 18px; display: flex; gap: 12px; align-items: center; color: #fff; background: rgba(5,24,55,.96); border: 1px solid rgba(73,213,255,.3); border-radius: 10px; box-shadow: 0 18px 45px rgba(4,19,46,.3); transform: translateY(26px); opacity: 0; pointer-events: none; transition: .3s; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast > span { width: 28px; height: 28px; display: grid; place-items: center; color: #06254a; background: var(--cyan); border-radius: 50%; font-weight: 900; }
.toast b, .toast small { display: block; }
.toast b { font-size: 14px; }.toast small { color: #9fb3d0; font-size: 12px; }
@media (max-width: 1120px) {
  .header-action { display: none; }.header-inner { padding: 0 22px; gap: 20px; }.nav { gap: 16px; }.nav a { font-size: 12px; }
  .cards-grid--four { grid-template-columns: repeat(2,1fr); }.cards-grid--feature { grid-template-columns: 1fr 1fr; }.feature-card { grid-column: span 2; }
  .intro-shell { grid-template-columns: 1fr; gap: 32px; }.intro-metrics { max-width: 600px; }.split-section { grid-template-columns: 1fr; gap: 46px; }.cards-stack { grid-template-columns: repeat(3,1fr); }.app-card.horizontal { grid-template-columns: 1fr; }.horizontal .card-link { padding-left: 0; }
}
@media (max-width: 760px) {
  .site-header { height: auto; position: relative; }.header-inner { min-height: 72px; }.nav { display: none; }.hero { height: 620px; }.hero-content { padding: 100px 25px 0; }.hero h1 { font-size: 44px; }.hero-copy { font-size: 16px; }.hero-controls { left: 25px; bottom: 78px; }.hero-quick { left: 0; min-width: 100%; overflow-x: auto; justify-content: flex-start; }.hero-quick span { display: none; }.hero-quick a { flex: 0 0 auto; padding: 0 18px; }
  .intro-shell, .product-section { padding-left: 22px; padding-right: 22px; }.section-heading { grid-template-columns: 52px 1fr; }.section-tag { display: none; }.cards-grid--feature, .cards-grid--four, .cards-grid--three, .cards-stack { grid-template-columns: 1fr; }.feature-card { grid-column: auto; padding-right: 30px; }.immersive-copy { padding: 34px 28px; }.immersive-cards { margin: 18px 0 0; }.intro-metrics { grid-template-columns: 1fr; border: 0; }.intro-metrics div { border: 0; border-bottom: 1px solid var(--line); }.app-card.horizontal { grid-template-columns: 58px 1fr; }.horizontal .card-link { grid-column: 2; } footer { grid-template-columns: 1fr; text-align: left; } footer > p { text-align: left; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; } }