:root {
    --bg: #07121b;
    --bg-soft: #0b1723;
    --panel: rgba(10, 24, 35, 0.78);
    --panel-strong: rgba(12, 28, 39, 0.92);
    --line: rgba(138, 182, 209, 0.16);
    --text: #edf4fb;
    --muted: #98afc2;
    --teal: #28d4ca;
    --teal-deep: #0d9ea6;
    --amber: #ff9754;
    --white-soft: rgba(255, 255, 255, 0.08);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
    --radius-xl: 30px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --container: min(1180px, calc(100vw - 36px));
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Aptos", "Segoe UI", "Microsoft YaHei", sans-serif;
    background:
        radial-gradient(circle at top right, rgba(40, 212, 202, 0.18), transparent 30%),
        radial-gradient(circle at left 12%, rgba(255, 151, 84, 0.12), transparent 24%),
        linear-gradient(180deg, #07121b 0%, #081520 45%, #091621 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 88%);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

p {
    margin: 0;
    line-height: 1.78;
}

ul {
    margin: 0;
    padding-left: 18px;
}

h1,
h2,
h3,
.metric-number,
.brand-mark {
    font-family: "Bahnschrift", "Trebuchet MS", "Microsoft YaHei", sans-serif;
}

h1,
h2,
h3 {
    margin: 0;
    line-height: 1.08;
}

h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.15rem);
    margin-bottom: 16px;
}

h3 {
    font-size: 1.36rem;
    margin-bottom: 12px;
}

.container {
    width: var(--container);
    margin: 0 auto;
}

.eyebrow,
.tag,
.metric-label,
.metric-unit,
.meta-label,
.anchor-link {
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.78rem;
    color: var(--muted);
}

.site-header {
    position: sticky;
    top: 12px;
    z-index: 30;
    padding-top: 12px;
}

.header-shell {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 16px 22px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    background: rgba(8, 20, 30, 0.72);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-mark {
    display: inline-flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    color: #081117;
    font-weight: 700;
    background: linear-gradient(135deg, var(--teal), var(--amber));
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand-copy strong {
    font-size: 1rem;
    letter-spacing: 0.08em;
}

.brand-copy small {
    color: var(--muted);
    font-size: 0.76rem;
    letter-spacing: 0.06em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-left: auto;
}

.site-nav a {
    color: var(--muted);
    transition: color 0.24s ease, background 0.24s ease;
    padding: 10px 12px;
    border-radius: 999px;
}

.site-nav a:hover,
.site-nav a.is-current {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.header-cta,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid var(--white-soft);
    transition: transform 0.24s ease, background 0.24s ease, border-color 0.24s ease;
}

.header-cta,
.button-primary {
    background: linear-gradient(135deg, var(--teal), #12b7ba);
    color: #081117;
    border-color: transparent;
}

.button-secondary {
    background: rgba(255, 255, 255, 0.04);
}

.button:hover,
.header-cta:hover {
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: 14px;
    border: 1px solid var(--white-soft);
    background: rgba(255, 255, 255, 0.04);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    background: var(--text);
}

.page-main {
    padding-bottom: 80px;
}

.hero-home,
.page-hero {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 34px;
    align-items: center;
    padding: 92px 0 34px;
}

.hero-copy,
.hero-art,
.section-card,
.metric-card,
.content-card,
.timeline-card,
.cta-band,
.preview-card,
.table-card,
.contact-card,
.info-strip {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.eyebrow {
    margin-bottom: 16px;
}

.lead {
    margin-top: 18px;
    max-width: 62ch;
    color: #d4e0ea;
    font-size: 1.04rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: 30px 0 24px;
}

.hero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 0;
    list-style: none;
}

.hero-pills li,
.tag {
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
}

.hero-art {
    position: relative;
}

.hero-art::before {
    content: "";
    position: absolute;
    inset: -12px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, rgba(40, 212, 202, 0.16), rgba(255, 151, 84, 0.08));
    filter: blur(14px);
}

.figure-frame {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: var(--panel-strong);
    box-shadow: var(--shadow);
}

.figure-caption {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.95rem;
}

.metrics-grid,
.cards-3,
.cards-4,
.company-metrics,
.timeline-grid,
.contact-grid,
.preview-grid {
    display: grid;
    gap: 18px;
}

.metrics-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 16px;
}

.metric-card,
.section-card,
.content-card,
.preview-card,
.table-card,
.contact-card,
.timeline-card,
.info-strip {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

.metric-number {
    display: block;
    font-size: clamp(2rem, 4vw, 3rem);
    margin: 10px 0 4px;
}

.metric-label {
    display: inline-block;
}

.metric-unit {
    display: block;
    margin-top: 4px;
}

.section {
    padding: 86px 0 0;
}

.section-heading {
    margin-bottom: 28px;
}

.section-heading p {
    max-width: 70ch;
    color: #d1deea;
}

.cards-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-list,
.meta-list {
    display: grid;
    gap: 12px;
    color: #d8e5ef;
}

.feature-list li,
.meta-list li {
    line-height: 1.72;
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.quote-card {
    padding: 28px;
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(10, 24, 35, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.quote-card p + p {
    margin-top: 18px;
}

.anchor-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.anchor-link {
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
}

.preview-card img,
.content-card img {
    margin-top: 18px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
}

.mini-title {
    display: block;
    margin-bottom: 12px;
    color: var(--muted);
    font-size: 0.86rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.table-card table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 14px;
}

.table-card th,
.table-card td {
    text-align: left;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

.table-card th {
    color: #dfeaf4;
    font-weight: 600;
}

.table-card td {
    color: var(--muted);
}

.company-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.company-metrics .content-card {
    min-height: 180px;
}

.timeline-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline-card {
    border-top: 2px solid rgba(40, 212, 202, 0.65);
}

.timeline-card strong {
    display: block;
    margin-bottom: 12px;
    font-size: 1.2rem;
}

.contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cta-band {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 24px;
    margin-top: 30px;
    padding: 30px;
    border-radius: var(--radius-xl);
    background:
        radial-gradient(circle at right top, rgba(255, 151, 84, 0.18), transparent 38%),
        linear-gradient(135deg, rgba(40, 212, 202, 0.14), rgba(8, 18, 27, 0.95));
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.cta-band p {
    color: #d8e3ed;
}

.cta-band .button {
    justify-self: start;
    margin-top: 12px;
}

.contact-note {
    margin-top: 18px;
    padding: 18px;
    border-radius: 16px;
    border: 1px dashed rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.03);
    color: var(--muted);
}

.contact-form {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text);
    font: inherit;
}

.contact-form textarea {
    min-height: 136px;
    resize: vertical;
}

.form-status,
.form-summary {
    margin-top: 14px;
    padding: 16px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
    color: #dce7f1;
    white-space: pre-wrap;
}

.site-footer {
    margin-top: 90px;
    padding: 34px 0 46px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr 1fr;
    gap: 24px;
}

.footer-links {
    display: grid;
    gap: 10px;
    color: var(--muted);
}

.footer-meta {
    color: var(--muted);
}

.footer-meta p + p,
.footer-links a + a {
    margin-top: 10px;
}

.footer-bar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 26px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--muted);
    font-size: 0.92rem;
}

.center-stage {
    min-height: 64vh;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 120px 0 40px;
}

.center-card {
    max-width: 720px;
    padding: 42px;
    border-radius: var(--radius-xl);
    background: var(--panel-strong);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.center-card p {
    margin-top: 16px;
    color: #d6e3ed;
}

@media (max-width: 1080px) {
    .hero-home,
    .page-hero,
    .split-layout,
    .cta-band,
    .footer-grid,
    .contact-grid,
    .preview-grid {
        grid-template-columns: 1fr;
    }

    .metrics-grid,
    .cards-4,
    .cards-3,
    .timeline-grid,
    .company-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .site-header {
        position: static;
    }

    .header-shell {
        flex-wrap: wrap;
        border-radius: 26px;
    }

    .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-left: auto;
    }

    .header-cta {
        display: none;
    }

    .site-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        margin: 10px 0 0;
        padding-top: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .site-nav.is-open {
        display: flex;
    }

    .site-nav a {
        width: 100%;
    }
}

@media (max-width: 720px) {
    :root {
        --container: min(100vw - 24px, 1180px);
    }

    h1 {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .metrics-grid,
    .cards-4,
    .cards-3,
    .timeline-grid,
    .company-metrics,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding-top: 72px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .footer-bar {
        flex-direction: column;
    }
}