:root {
    color-scheme: dark;
    --bg: #07111f;
    --panel: rgba(12, 26, 44, 0.82);
    --line: rgba(126, 180, 255, 0.22);
    --text: #f2f7ff;
    --muted: #94a9c4;
    --accent: #5eead4;
    --accent-strong: #22d3ee;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 8%, rgba(34, 211, 238, 0.22), transparent 38rem),
        radial-gradient(circle at 88% 92%, rgba(94, 234, 212, 0.14), transparent 34rem), var(--bg);
    font-family: "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.page {
    width: min(960px, calc(100% - 40px));
    margin: 0 auto;
    padding: 72px 0 40px;
}

.hero {
    padding: 36px 0 28px;
    border-bottom: 1px solid var(--line);
}

.eyebrow {
    margin: 0 0 18px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

h1 {
    margin: 0;
    font-size: clamp(40px, 8vw, 84px);
    line-height: 0.96;
    letter-spacing: -0.045em;
}

.lead {
    max-width: 640px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.8;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin: 28px 0;
}

.card,
.panel {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--panel);
    backdrop-filter: blur(16px);
}

.card {
    padding: 22px;
}

.card-label {
    display: block;
    margin-bottom: 14px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
}

.card strong {
    display: block;
    font-size: 18px;
}

.card p,
.muted {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px 24px;
    align-items: center;
    padding: 28px;
}

.panel h2 {
    margin: 0 0 8px;
    font-size: 22px;
}

.probe {
    border: 0;
    border-radius: 999px;
    padding: 13px 22px;
    color: #06202b;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.probe:focus-visible {
    outline: 3px solid #fef08a;
    outline-offset: 3px;
}

footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 34px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px;
}

@media (max-width: 760px) {
    .page {
        padding-top: 40px;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .panel {
        grid-template-columns: 1fr;
    }

    footer {
        flex-direction: column;
    }
}