:root {
    color-scheme: dark;
    --bg-deep: #050914;
    --bg-card: rgba(14, 20, 37, 0.85);
    --bg-panel: rgba(26, 34, 55, 0.9);
    --accent: #59f5c7;
    --accent-secondary: #6b7bff;
    --text: #f4f6fb;
    --muted: #9ca7c4;
    --border: rgba(255, 255, 255, 0.08);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body, html {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-family: "Inter", "SF Pro SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-weight: 400;
    color: var(--text);
    background: radial-gradient(circle at top, #101d3f 0%, var(--bg-deep) 60%);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s ease, opacity 0.25s ease;
}

a:hover,
a:focus {
    opacity: 0.85;
}

p {
    margin: 0;
    line-height: 1.6;
    color: var(--muted);
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.container {
    width: min(1200px, 100%);
    margin: 0 auto;
    padding: 0 24px;
}

.landing {
    background: linear-gradient(135deg, rgba(37, 68, 155, 0.5), rgba(5, 9, 20, 0.95));
}

.hero {
    padding: 120px 0 80px;
    position: relative;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(89, 245, 199, 0.25), transparent 45%);
    pointer-events: none;
    z-index: 0;
}

.hero__content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    align-items: center;
}

.hero__text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.eyebrow {
    font-size: 13px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent);
}

.hero h1 {
    font-size: clamp(42px, 6vw, 64px);
}

.lead {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.btn.primary {
    background: linear-gradient(120deg, var(--accent), var(--accent-secondary));
    color: #061021;
    box-shadow: 0 15px 40px rgba(89, 245, 199, 0.25);
}

.btn.ghost {
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--text);
}

.hero__bullets {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 0;
    margin: 12px 0 0;
}

.hero__bullets li {
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.07);
    font-size: 14px;
}

.hero__panel {
    display: grid;
    gap: 18px;
}

.panel-card {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border);
    box-shadow: 0 25px 60px rgba(8, 12, 25, 0.45);
}

.panel-label {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--muted);
}

.panel-value {
    font-size: 42px;
    font-weight: 700;
    color: #fff;
    margin: 10px 0;
}

.panel-desc {
    font-size: 15px;
}

.metrics {
    padding: 60px 0;
    background: rgba(6, 10, 23, 0.95);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.metrics__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
}

.metrics__grid h3 {
    font-size: 36px;
    color: var(--accent);
}

.modules {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(8, 13, 23, 0.92), rgba(6, 9, 19, 0.98));
}

.section-head {
    max-width: 720px;
    margin-bottom: 50px;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.module-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 30px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.module-card header {
    display: flex;
    align-items: center;
    gap: 14px;
}

.badge {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--accent);
}

.module-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.module-card li::before {
    content: "•";
    color: var(--accent-secondary);
    margin-right: 8px;
}

.workflow {
    padding: 90px 0;
    background: rgba(5, 9, 20, 0.95);
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.step {
    padding: 28px;
    border-radius: var(--radius-md);
    background: rgba(18, 25, 44, 0.9);
    border: 1px solid var(--border);
}

.step-index {
    font-size: 12px;
    letter-spacing: 0.4em;
    color: var(--muted);
}

.workflow h4 {
    margin-top: 12px;
    margin-bottom: 12px;
    font-size: 20px;
}

.cta {
    padding: 90px 0;
    background: linear-gradient(120deg, rgba(91, 245, 199, 0.1), rgba(21, 42, 94, 0.95));
}

.cta__content {
    padding: 40px 50px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 24px;
    background: rgba(5, 9, 20, 0.65);
}

.cta__content h2 {
    font-size: clamp(28px, 4vw, 40px);
    margin: 12px 0;
}

.footer {
    background-color: rgba(4, 6, 12, 0.95);
    padding: 24px 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
    .hero {
        padding-top: 80px;
    }

    .hero__actions {
        flex-direction: column;
    }

    .module-card,
    .panel-card,
    .step,
    .cta__content {
        padding: 24px;
    }
}