:root {
    --bg: #060713;
    --bg-soft: #0b1024;
    --panel: rgba(18, 25, 55, 0.72);
    --panel-strong: rgba(22, 31, 70, 0.92);
    --text: #f4f8ff;
    --muted: #a8b7d8;
    --line: rgba(128, 218, 255, 0.18);
    --cyan: #25e6ff;
    --blue: #4b7dff;
    --purple: #9c5cff;
    --pink: #ff4fd8;
    --green: #55ffd6;
    --shadow: 0 24px 80px rgba(21, 92, 255, 0.22);
    --radius-lg: 30px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(1180px, calc(100% - 36px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 8%, rgba(81, 92, 255, 0.28), transparent 28rem),
        radial-gradient(circle at 88% 12%, rgba(178, 68, 255, 0.22), transparent 30rem),
        linear-gradient(135deg, #04040c 0%, #070a19 48%, #0b0720 100%);
    line-height: 1.75;
    overflow-x: hidden;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, black, transparent 78%);
    z-index: -1;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { color: var(--muted); margin: 0 0 18px; }
h1, h2, h3 { line-height: 1.18; margin: 0; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 6vw, 5.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); }
h3 { font-size: 1.2rem; }

.notice-bar {
    min-height: 38px;
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: center;
    padding: 8px 18px;
    color: #d6efff;
    background: linear-gradient(90deg, rgba(37,230,255,.12), rgba(156,92,255,.16), rgba(37,230,255,.12));
    border-bottom: 1px solid var(--line);
    font-size: 0.92rem;
}
.signal-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 20px var(--green);
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(22px);
    background: rgba(6, 7, 19, 0.72);
    border-bottom: 1px solid rgba(128, 218, 255, 0.12);
}
.main-nav {
    width: var(--container);
    margin: 0 auto;
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.brand, .footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    letter-spacing: 0.02em;
}
.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 15px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    color: #061021;
    box-shadow: 0 0 30px rgba(37,230,255,.38);
}
.brand-text { font-size: 1.15rem; }
.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-links a {
    padding: 10px 13px;
    border-radius: 999px;
    color: #dce8ff;
    font-size: 0.96rem;
    transition: .25s ease;
}
.nav-links a:hover, body[data-active="home"] [data-nav="home"], body[data-active="about"] [data-nav="about"], body[data-active="products"] [data-nav="products"], body[data-active="solutions"] [data-nav="solutions"], body[data-active="cases"] [data-nav="cases"], body[data-active="ai-lab"] [data-nav="ai-lab"], body[data-active="videos"] [data-nav="videos"], body[data-active="contact"] [data-nav="contact"] {
    color: white;
    background: rgba(37,230,255,.12);
    box-shadow: inset 0 0 0 1px rgba(37,230,255,.22);
}
.menu-toggle {
    display: none;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.04);
    color: white;
    border-radius: 12px;
    width: 42px;
    height: 42px;
    font-size: 1.3rem;
}

.hero, .page-hero, .section, .cta-section {
    width: var(--container);
    margin: 0 auto;
}
.hero, .page-hero {
    display: grid;
    grid-template-columns: 1.03fr .97fr;
    gap: 52px;
    align-items: center;
    padding: 96px 0 70px;
}
.compact-hero { padding-top: 76px; padding-bottom: 54px; }
.hero-copy { position: relative; }
.eyebrow {
    color: var(--cyan);
    font-size: .92rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.hero-lead {
    font-size: clamp(1.05rem, 2vw, 1.26rem);
    margin-top: 24px;
    max-width: 680px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 34px 0 24px; }
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.16);
    font-weight: 700;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary {
    background: linear-gradient(135deg, var(--cyan), var(--blue) 50%, var(--purple));
    color: white;
    box-shadow: 0 15px 42px rgba(75, 125, 255, .32);
}
.btn.ghost { background: rgba(255,255,255,.05); }
.hero-pills, .mini-tags, .info-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.hero-pills span, .mini-tags span, .info-strip span {
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid rgba(37,230,255,.22);
    background: rgba(37,230,255,.07);
    color: #d8f7ff;
    font-size: .9rem;
}
.hero-visual, .feature-card, .dashboard-card, .glass-card, .contact-card, .contact-side > div {
    border: 1px solid rgba(128, 218, 255, .18);
    background: linear-gradient(145deg, rgba(255,255,255,.09), rgba(255,255,255,.03));
    box-shadow: var(--shadow);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.hero-visual { padding: 18px; position: relative; }
.hero-visual::after, .dashboard-card::after {
    content: "";
    position: absolute;
    inset: -40%;
    background: conic-gradient(from 180deg, transparent, rgba(37,230,255,.14), transparent, rgba(156,92,255,.16), transparent);
    animation: rotateGlow 16s linear infinite;
    z-index: -1;
}

.section { padding: 72px 0; }
.section-heading { max-width: 840px; margin: 0 auto 34px; text-align: center; }
.section-heading p { margin-top: 16px; }
.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 44px;
    align-items: center;
}
.reverse .section-copy { order: 2; }
.reverse .feature-card { order: 1; }
.section-copy p:not(.eyebrow) { margin-top: 20px; }
.check-list {
    padding: 0;
    margin: 22px 0 0;
    list-style: none;
    display: grid;
    gap: 12px;
}
.check-list li {
    color: #dce8ff;
    padding-left: 32px;
    position: relative;
}
.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .55em;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--cyan) 0 35%, rgba(37,230,255,.2) 36% 100%);
    box-shadow: 0 0 18px rgba(37,230,255,.6);
}
.image-card { padding: 18px; position: relative; }

.dark-panel {
    width: var(--container);
    border-radius: 36px;
    padding: 58px;
    margin-top: 42px;
    margin-bottom: 42px;
    border: 1px solid rgba(128, 218, 255, .18);
    background:
        radial-gradient(circle at 10% 0%, rgba(37,230,255,.15), transparent 24rem),
        radial-gradient(circle at 90% 0%, rgba(156,92,255,.16), transparent 24rem),
        rgba(10, 13, 32, .76);
    box-shadow: var(--shadow);
}
.capability-grid, .matrix-grid, .scenario-grid, .product-grid, .solution-grid, .lab-grid, .process-grid {
    display: grid;
    gap: 22px;
}
.capability-grid { grid-template-columns: repeat(3, 1fr); }
.capability-card, .matrix-card, .scenario-card, .product-card, .solution-card, .lab-card, .process-step, .timeline-item, .case-card, .video-card {
    border: 1px solid rgba(128, 218, 255, .16);
    background: rgba(255,255,255,.055);
    border-radius: var(--radius-md);
    padding: 22px;
    transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.capability-card:hover, .matrix-card:hover, .scenario-card:hover, .product-card:hover, .solution-card:hover, .lab-card:hover, .process-step:hover, .video-card:hover {
    transform: translateY(-5px);
    border-color: rgba(37,230,255,.46);
    background: rgba(37,230,255,.08);
}
.capability-card img, .scenario-card img, .product-card img, .solution-card img { border-radius: 16px; margin-bottom: 18px; }
.capability-card h3, .matrix-card h3, .scenario-card h3, .product-card h3, .solution-card h2, .lab-card h2, .process-step h3, .video-card h2, .video-card h3 { margin-bottom: 10px; }
.capability-card p, .matrix-card p, .scenario-card p, .product-card p, .solution-card p, .lab-card p, .process-step p, .video-card p { margin-bottom: 0; }
.matrix-grid { grid-template-columns: repeat(4, 1fr); }
.matrix-number {
    display: inline-flex;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    align-items: center;
    justify-content: center;
    color: var(--cyan);
    background: rgba(37,230,255,.11);
    margin-bottom: 18px;
    font-weight: 800;
}
.dashboard-section {
    display: grid;
    grid-template-columns: .98fr 1.02fr;
    align-items: center;
    gap: 44px;
}
.dashboard-card { position: relative; padding: 18px; }
.stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 24px;
}
.stat-row div {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(128, 218, 255, .14);
}
.stat-row strong { display: block; font-size: 2rem; color: white; }
.stat-row span { color: var(--muted); }
.scenario-grid { grid-template-columns: repeat(3, 1fr); }
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.video-grid.large { grid-template-columns: repeat(4, 1fr); }
.video-card { position: relative; display: block; overflow: hidden; }
.video-card img { border-radius: 16px; margin-bottom: 16px; }
.play-badge {
    position: absolute;
    top: 34px;
    right: 34px;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(37,230,255,.88);
    color: #071020;
    box-shadow: 0 0 25px rgba(37,230,255,.62);
}
.faq-list { max-width: 940px; margin: 0 auto; display: grid; gap: 14px; }
details {
    border: 1px solid rgba(128, 218, 255, .16);
    background: rgba(255,255,255,.055);
    border-radius: 18px;
    padding: 18px 22px;
}
summary { cursor: pointer; font-weight: 800; color: #f7fbff; }
details p { margin: 12px 0 0; }
.cta-section {
    margin-top: 42px;
    margin-bottom: 80px;
    padding: 36px;
    border: 1px solid rgba(128, 218, 255, .2);
    border-radius: 30px;
    background: linear-gradient(135deg, rgba(37,230,255,.14), rgba(156,92,255,.16));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    box-shadow: var(--shadow);
}
.cta-section p { max-width: 760px; }

.story-section, .contact-section, .dashboard-layout {
    display: grid;
    grid-template-columns: 1fr .82fr;
    gap: 32px;
    align-items: start;
}
.glass-card { padding: 28px; }
.glass-card h3, .glass-card h2 { margin-bottom: 14px; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.timeline-item span, .process-step span {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    color: #061021;
    font-weight: 900;
}
.product-grid { grid-template-columns: repeat(3, 1fr); }
.dashboard-layout { grid-template-columns: 1.1fr .9fr; align-items: center; }
.dashboard-image { border-radius: 24px; }
.dashboard-points { display: grid; gap: 14px; }
.dashboard-points div, .feature-list-box div {
    padding: 18px;
    border-radius: 18px;
    border: 1px solid rgba(128, 218, 255, .16);
    background: rgba(255,255,255,.06);
}
.dashboard-points strong, .feature-list-box strong { display: block; margin-bottom: 6px; color: white; }
.dashboard-points span, .feature-list-box span { color: var(--muted); }
.solution-grid { grid-template-columns: repeat(2, 1fr); }
.solution-card ul { margin: 18px 0 0; color: #dce8ff; }
.process-grid { grid-template-columns: repeat(4, 1fr); }
.case-list { display: grid; gap: 28px; }
.case-card { display: grid; grid-template-columns: .42fr .58fr; gap: 24px; align-items: center; }
.case-media img { border-radius: 18px; }
.case-label {
    color: var(--cyan);
    font-weight: 800;
    display: inline-block;
    margin-bottom: 10px;
}
.case-content h2 { margin-bottom: 18px; }
.case-content p { margin-bottom: 10px; }
.lab-grid { grid-template-columns: repeat(4, 1fr); }
.lab-icon { color: var(--cyan); font-size: 2rem; display: inline-block; margin-bottom: 10px; }
.feature-list-box { display: grid; gap: 14px; margin-top: 24px; }
.contact-card { padding: 30px; }
.contact-side { display: grid; gap: 22px; }
.demo-form { display: grid; gap: 14px; margin-top: 24px; }
.demo-form label { display: grid; gap: 8px; color: #dce8ff; font-weight: 700; }
.demo-form input, .demo-form select, .demo-form textarea {
    width: 100%;
    color: white;
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(128, 218, 255, .18);
    border-radius: 14px;
    padding: 13px 14px;
    outline: none;
    font: inherit;
}
.demo-form textarea { resize: vertical; }
.big-domain { font-size: clamp(1.4rem, 3vw, 2rem); color: white; word-break: break-all; }
.site-footer {
    border-top: 1px solid rgba(128, 218, 255, .16);
    background: rgba(4, 5, 13, .86);
    padding: 54px 0 22px;
}
.footer-grid {
    width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr repeat(3, .7fr);
    gap: 32px;
}
.footer-grid h2 { font-size: 1.05rem; margin-bottom: 14px; }
.footer-grid a { display: block; color: var(--muted); margin: 8px 0; }
.footer-grid a:hover { color: var(--cyan); }
.footer-brand { color: white; font-size: 1.4rem; margin-bottom: 12px; }
.dynamic-address { word-break: break-all; }
.footer-bottom {
    width: var(--container);
    margin: 28px auto 0;
    padding-top: 20px;
    border-top: 1px solid rgba(128, 218, 255, .12);
    display: flex;
    justify-content: space-between;
    gap: 18px;
    color: #8ea3ca;
    font-size: .92rem;
}
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .72s ease, transform .72s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
.delay-3 { transition-delay: .24s; }

@keyframes rotateGlow { to { transform: rotate(360deg); } }

@media (max-width: 980px) {
    .main-nav { min-height: 68px; }
    .menu-toggle { display: inline-grid; place-items: center; }
    .nav-links {
        position: absolute;
        left: 18px;
        right: 18px;
        top: 108px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 22px;
        background: rgba(8, 11, 28, .96);
        border: 1px solid rgba(128, 218, 255, .18);
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 16px; }
    .hero, .page-hero, .split-section, .dashboard-section, .story-section, .contact-section, .dashboard-layout, .case-card {
        grid-template-columns: 1fr;
    }
    .reverse .section-copy, .reverse .feature-card { order: initial; }
    .capability-grid, .scenario-grid, .product-grid, .timeline, .process-grid, .lab-grid, .video-grid.large { grid-template-columns: repeat(2, 1fr); }
    .matrix-grid, .solution-grid, .video-grid { grid-template-columns: 1fr 1fr; }
    .dark-panel { padding: 38px 24px; border-radius: 28px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    :root { --container: min(100% - 28px, 1180px); }
    h1 { font-size: clamp(2.1rem, 12vw, 3rem); }
    .notice-hide-mobile { display: none; }
    .hero, .page-hero { padding: 54px 0 38px; gap: 30px; }
    .section { padding: 48px 0; }
    .capability-grid, .matrix-grid, .scenario-grid, .product-grid, .solution-grid, .timeline, .process-grid, .lab-grid, .video-grid, .video-grid.large, .stat-row { grid-template-columns: 1fr; }
    .cta-section { flex-direction: column; align-items: flex-start; padding: 26px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
    .dark-panel { width: var(--container); margin-top: 22px; margin-bottom: 22px; }
}