:root {
    --accent: #245cc5;
    --accent-strong: #19489f;
    --accent-soft: #dfeaff;
    --ink: #24324a;
    --muted: #65738a;
    --page: #f3f6fb;
    --surface: #ffffff;
    --surface-soft: #edf3ff;
    --line: rgba(36, 50, 74, 0.12);
    --shadow: 0 24px 70px rgba(36, 50, 74, 0.12);
    --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--page); font-family: "Alibaba PuHuiTi", "HarmonyOS Sans SC", "PingFang SC", "Microsoft Yahei", "Segoe UI", Arial, sans-serif; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
p, h1, h2, h3, figure { margin-top: 0; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 20; border-bottom: 1px solid rgba(36, 50, 74, 0.08); background: rgba(243, 246, 251, 0.82); backdrop-filter: blur(18px); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand, .nav-links { display: flex; align-items: center; }
.brand { gap: 12px; font-size: 19px; font-weight: 850; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; color: #ffffff; border-radius: 12px; background: var(--accent); box-shadow: 0 14px 34px rgba(36, 92, 197, 0.28); font-size: 18px; font-weight: 900; }
.nav-links { gap: 24px; color: #40506a; font-size: 14px; font-weight: 750; white-space: nowrap; }
.nav-links a { transition: color .22s ease, transform .22s ease; }
.nav-links a:hover { color: var(--accent); }
.nav-button { min-height: 42px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; color: #ffffff !important; border-radius: 999px; background: var(--ink); }
.nav-button:hover { transform: translateY(-2px); }

.hero-section { position: relative; overflow: hidden; padding: 132px 0 78px; min-height: 100dvh; display: flex; align-items: center; isolation: isolate; }
.hero-section:before { position: absolute; content: ""; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(243,246,251,.98) 0%, rgba(243,246,251,.82) 42%, rgba(243,246,251,.18) 100%), radial-gradient(circle at 76% 10%, rgba(36,92,197,.18), transparent 30%); pointer-events: none; }
.hero-section:after { position: absolute; content: ""; width: 460px; height: 460px; right: -170px; bottom: -220px; border: 1px solid rgba(36,92,197,.16); border-radius: 50%; box-shadow: 0 0 0 70px rgba(36,92,197,.04), 0 0 0 140px rgba(36,92,197,.025); z-index: -1; }
.hero-orbit { position: absolute; border: 1px solid rgba(36,92,197,.18); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 220px; height: 220px; right: 14%; top: 18%; animation: float-orbit 8s ease-in-out infinite; }
.orbit-two { width: 74px; height: 74px; right: 26%; top: 30%; background: rgba(36,92,197,.08); animation: float-orbit 6s ease-in-out infinite reverse; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, .88fr) minmax(460px, 1.12fr); align-items: center; gap: 58px; }
.hero-copy { padding-top: 4px; }
.eyebrow { display: inline-block; margin-bottom: 18px; color: var(--accent); font-size: 12px; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
.hero-copy h1 { max-width: 690px; margin-bottom: 22px; font-size: clamp(44px, 5.4vw, 72px); line-height: 1.05; letter-spacing: -.045em; }
.hero-copy p { max-width: 600px; margin-bottom: 30px; color: var(--muted); font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.primary-btn, .ghost-btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 50px; padding: 0 22px; border-radius: 999px; font-weight: 850; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease; }
.primary-btn { color: #ffffff; background: var(--accent); box-shadow: 0 18px 36px rgba(36,92,197,.22); }
.ghost-btn { color: var(--ink); border: 1px solid var(--line); background: rgba(255,255,255,.68); }
.primary-btn:hover, .ghost-btn:hover { transform: translateY(-2px); }
.primary-btn:active, .ghost-btn:active, .nav-button:active { transform: translateY(1px); }
.hero-note { display: flex; align-items: center; gap: 9px; margin-top: 26px; color: var(--muted); font-size: 13px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(36,92,197,.12); }
.hero-visual-wrap { position: relative; padding: 20px 24px 24px 0; }
.hero-visual { position: relative; margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--surface-soft); box-shadow: var(--shadow); }
.hero-visual img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; filter: saturate(.82) contrast(1.03); }
.hero-visual:after { position: absolute; content: ""; inset: 0; border: 1px solid rgba(255,255,255,.55); border-radius: inherit; pointer-events: none; }
.hero-visual figcaption { position: absolute; left: 20px; bottom: 18px; max-width: 240px; padding: 9px 12px; color: #fff; border-left: 2px solid #c5d9ff; background: rgba(36,50,74,.68); backdrop-filter: blur(12px); font-size: 12px; line-height: 1.5; }
.float-card { position: absolute; z-index: 2; min-width: 166px; padding: 17px 18px; border: 1px solid rgba(255,255,255,.7); border-radius: 14px; background: rgba(255,255,255,.88); box-shadow: 0 18px 45px rgba(36,50,74,.15); backdrop-filter: blur(16px); animation: float-card 7s ease-in-out infinite; }
.float-card-top { top: 0; right: -2px; }
.float-card-bottom { right: 10%; bottom: -2px; animation-delay: -2.4s; }
.float-label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 11px; font-weight: 700; }
.float-card strong { display: block; color: var(--ink); font-size: 23px; line-height: 1; }
.float-card strong small { margin-left: 5px; color: var(--accent); font-size: 11px; }
.float-card strong span { color: var(--accent); font-size: 15px; }
.float-status { display: block; margin-top: 8px; color: var(--accent); font-size: 11px; }
.sparkline { display: flex; align-items: end; gap: 3px; height: 22px; margin-top: 12px; }
.sparkline i { display: block; width: 12px; border-radius: 3px 3px 0 0; background: var(--accent-soft); }
.sparkline i:nth-child(1) { height: 8px; }.sparkline i:nth-child(2) { height: 12px; }.sparkline i:nth-child(3) { height: 10px; }.sparkline i:nth-child(4) { height: 16px; }.sparkline i:nth-child(5) { height: 13px; }.sparkline i:nth-child(6) { height: 19px; }.sparkline i:nth-child(7) { height: 22px; background: var(--accent); }

.proof-section { padding: 24px 0; background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; overflow: hidden; border-radius: var(--radius); background: var(--line); }
.proof-grid div { padding: 24px 22px; background: var(--surface); }
.proof-grid strong { display: block; margin-bottom: 8px; font-size: 20px; line-height: 1.2; }.proof-grid span { color: var(--muted); font-size: 13px; line-height: 1.7; }

.section { padding: 104px 0; }.section-heading { max-width: 760px; margin: 0 0 44px; }.section-heading h2, .insight-copy h2, .scene-copy h2, .faq-grid h2, .cta-card h2 { margin-bottom: 16px; font-size: clamp(32px,4vw,50px); line-height: 1.12; letter-spacing: -.035em; }.section-heading p, .insight-copy p, .scene-copy p, .faq-grid > div > p, .cta-card p { max-width: 680px; color: var(--muted); font-size: 17px; line-height: 1.8; }
.split-heading { display: grid; grid-template-columns: minmax(0,1fr) minmax(260px,.66fr); gap: 50px; align-items: end; }.split-heading p { margin: 0 0 4px; }

.insight-section { padding-top: 78px; background: var(--surface-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }.insight-grid { display: grid; grid-template-columns: minmax(0,.78fr) minmax(420px,1.22fr); gap: 78px; align-items: center; }.insight-copy h2 { max-width: 530px; }.text-link, .card-link { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-strong); font-size: 14px; font-weight: 850; }.text-link span, .card-link span { transition: transform .2s ease; }.text-link:hover span, .card-link:hover span { transform: translateX(4px); }
.metric-board { overflow: hidden; padding: 25px; border: 1px solid rgba(36,50,74,.1); border-radius: var(--radius); background: var(--surface); box-shadow: 0 24px 60px rgba(36,50,74,.09); }.metric-board-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; color: var(--muted); font-size: 13px; font-weight: 750; }.metric-period { color: var(--accent); }.metric-main { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 18px; }.metric-main span { color: var(--muted); font-size: 13px; }.metric-main strong { font-size: clamp(26px,3vw,40px); letter-spacing: -.04em; }.metric-main em { grid-column: 1 / -1; margin-top: -12px; color: var(--accent); font-size: 12px; font-style: normal; }.metric-bars { display: flex; align-items: end; gap: 9px; height: 130px; margin: 24px 0; padding: 0 4px 10px; border-bottom: 1px solid var(--line); }.metric-bars i { flex: 1; min-height: 12px; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, #5b8fe8, var(--accent)); opacity: .86; animation: bar-rise 1.2s ease both; }.metric-bars i:nth-child(2n) { opacity: .56; animation-delay: .08s; }.metric-bars i:nth-child(3n) { animation-delay: .16s; }.metric-list { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }.metric-list div { padding: 13px 14px; border-radius: 12px; background: var(--page); }.metric-list span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 11px; }.metric-list strong { font-size: 18px; }.metric-list .warning { color: #b86d2b; }

.feature-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: 18px; }.feature-card { min-height: 238px; grid-column: span 2; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: 0 18px 46px rgba(36,50,74,.06); transition: transform .24s ease, box-shadow .24s ease; }.feature-card:hover { transform: translateY(-4px); box-shadow: 0 24px 58px rgba(36,50,74,.11); }.feature-card-large { grid-column: span 3; min-height: 322px; display: flex; flex-direction: column; justify-content: flex-end; background: linear-gradient(135deg, rgba(36,92,197,.13), rgba(255,255,255,.86)), var(--surface); }.feature-card-wide { grid-column: span 3; }.feature-card span { display: block; margin-bottom: 16px; color: var(--accent); font-size: 12px; font-weight: 850; letter-spacing: .03em; }.feature-card h3 { margin-bottom: 11px; font-size: 23px; line-height: 1.28; }.feature-card p { margin-bottom: 18px; color: var(--muted); line-height: 1.76; }.tinted-card { background: var(--surface-soft); }.accent-card { color: #f7faff; background: var(--accent-strong); border-color: transparent; }.accent-card span, .accent-card .card-link { color: #c5d9ff; }.accent-card p { color: rgba(246,255,251,.76); }.image-card { position: relative; padding: 0; overflow: hidden; }.image-card img { width: 100%; height: 100%; min-height: 322px; object-fit: cover; filter: saturate(.82); }.image-caption { position: absolute; left: 18px; bottom: 18px; margin: 0 !important; padding: 8px 11px; color: #fff !important; border-left: 2px solid #c5d9ff; background: rgba(36,50,74,.68); font-size: 12px !important; font-weight: 700 !important; }.card-link { margin-top: auto; }.api-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }.api-chips span { display: inline-flex; padding: 7px 11px; color: var(--accent-strong); border-radius: 999px; background: var(--accent-soft); font-size: 12px; }

.scene-section { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }.scene-layout { display: grid; grid-template-columns: minmax(0,.82fr) minmax(0,1.18fr); gap: 64px; align-items: start; }.scene-copy { position: sticky; top: 112px; }.scene-copy h2 { max-width: 500px; }.scene-panel { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }.scene-panel article { min-height: 220px; padding: 25px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--page); }.scene-panel article:nth-child(2) { transform: translateY(34px); }.scene-panel article:nth-child(3) { background: var(--surface-soft); }.scene-index { display: block; margin-bottom: 32px; color: var(--accent); font-size: 11px !important; letter-spacing: .12em; }.scene-panel h3 { margin-bottom: 11px; font-size: 23px; }.scene-panel p { margin-bottom: 16px; color: var(--muted); line-height: 1.7; }.scene-panel b { color: var(--accent-strong); font-size: 12px; font-weight: 800; }

.workflow-section { background: linear-gradient(180deg, var(--page), rgba(223,234,255,.66)); }.workflow { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }.workflow div { min-height: 215px; padding: 27px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.74); }.workflow b { display: block; margin-bottom: 22px; color: var(--accent); font-size: 13px; letter-spacing: .08em; }.workflow h3 { margin-bottom: 10px; font-size: 23px; }.workflow span { color: var(--muted); line-height: 1.75; }
.faq-section { background: var(--surface); border-top: 1px solid var(--line); }.faq-grid { display: grid; grid-template-columns: minmax(0,.72fr) minmax(0,1.28fr); gap: 90px; }.faq-grid h2 { font-size: clamp(34px,4vw,54px); }.faq-list details { padding: 20px 0; border-bottom: 1px solid var(--line); }.faq-list details:first-child { border-top: 1px solid var(--line); }.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-size: 17px; font-weight: 800; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary span { color: var(--accent); font-size: 25px; font-weight: 400; transition: transform .2s ease; }.faq-list details[open] summary span { transform: rotate(45deg); }.faq-list p { max-width: 620px; margin: 14px 0 2px; color: var(--muted); line-height: 1.75; }

.cta-section { padding: 36px 0 98px; }.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 54px; color: #ffffff; border-radius: var(--radius); background: linear-gradient(135deg, rgba(36,92,197,.95), rgba(36,50,74,.98)), var(--ink); box-shadow: var(--shadow); }.cta-card .eyebrow { color: #c5d9ff; }.cta-card p { color: rgba(251,252,250,.78); }.cta-card h2 { max-width: 680px; }.primary-btn.light { flex: 0 0 auto; color: var(--ink); background: #ffffff; box-shadow: none; }
.site-footer { padding: 30px 0; color: rgba(255,255,255,.62); background: #17233a; }.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; font-size: 13px; }.footer-wrap strong { display: block; margin-bottom: 6px; color: #f7faff; font-size: 16px; }.footer-wrap span { color: rgba(255,255,255,.48); }.footer-wrap p { display: inline; margin: 0 18px 0 0; }.footer-wrap a:hover { color: #ffffff; }

@keyframes float-card { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
@keyframes float-orbit { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-8px,10px); } }
@keyframes bar-rise { from { transform: scaleY(0); transform-origin: bottom; } to { transform: scaleY(1); transform-origin: bottom; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *:before, *:after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }
@media (prefers-color-scheme: dark) {
    :root { --ink: #eef4ff; --muted: #a8b6cc; --page: #111c31; --surface: #17243a; --surface-soft: #20304c; --line: rgba(237,243,255,.12); --shadow: 0 24px 70px rgba(0,0,0,.3); }
    .site-header { background: rgba(17,28,49,.84); border-bottom-color: rgba(237,243,255,.09); }.nav-links { color: #d6e0f0; }.nav-button { color: #24324a !important; background: #eef4ff; }.hero-section:before { background: linear-gradient(90deg, rgba(17,28,49,.98) 0%, rgba(17,28,49,.82) 48%, rgba(17,28,49,.22) 100%), radial-gradient(circle at 76% 10%, rgba(36,92,197,.26), transparent 30%); }.ghost-btn, .workflow div, .float-card { background: rgba(23,36,58,.84); }.float-card strong { color: var(--ink); }.scene-section, .proof-section, .faq-section { background: var(--surface); }.site-footer { background: #0d1729; }.metric-list div { background: var(--page); }.image-caption, .hero-visual figcaption { background: rgba(11,23,42,.76); }
}
@media (max-width: 1024px) { .hero-grid, .scene-layout, .insight-grid, .faq-grid { grid-template-columns: 1fr; gap: 42px; }.hero-section { min-height: auto; }.hero-copy { max-width: 720px; }.scene-copy { position: static; }.proof-grid, .workflow { grid-template-columns: repeat(2,1fr); }.feature-card, .feature-card-large, .feature-card-wide, .image-card { grid-column: span 3; }.insight-copy h2 { max-width: 700px; }.faq-grid { gap: 30px; } }
@media (max-width: 760px) { .container { width: min(100% - 28px,1180px); }.site-header { position: absolute; }.nav-wrap { height: auto; padding: 18px 0; }.nav-links { display: none; }.hero-section { padding: 112px 0 54px; }.hero-copy h1 { font-size: 42px; }.hero-copy p { font-size: 16px; }.hero-actions { flex-direction: column; align-items: stretch; }.primary-btn, .ghost-btn { width: 100%; }.hero-visual-wrap { padding: 26px 0 22px; }.float-card-top { right: 4px; }.float-card-bottom { right: 16px; }.proof-grid, .scene-panel, .workflow, .feature-grid, .metric-list { grid-template-columns: 1fr; }.feature-card, .feature-card-large, .feature-card-wide, .image-card { grid-column: span 1; min-height: auto; }.feature-card-large { min-height: 300px; }.image-card img { min-height: 260px; }.scene-panel article:nth-child(2) { transform: none; }.split-heading { grid-template-columns: 1fr; gap: 0; }.section { padding: 76px 0; }.metric-board { padding: 20px; }.metric-bars { gap: 5px; }.cta-card, .footer-wrap { flex-direction: column; align-items: flex-start; }.cta-card { padding: 34px 26px; }.footer-wrap > div:last-child { line-height: 1.8; }.footer-wrap p { display: block; margin: 0; } }