:root {
    --bg-top: #08101b;
    --bg-bottom: #06070f;
    --panel: rgba(10, 18, 30, 0.74);
    --panel-strong: rgba(12, 22, 36, 0.9);
    --line: #244f6f;
    --text-main: #ecf5ff;
    --text-sub: #a9c1d8;
    --accent: #57d4ff;
}

* {
    box-sizing: border-box;
}

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

body {
    font-family: "Rajdhani", "Bahnschrift", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(1200px 700px at 90% -10%, #113d63 0%, transparent 62%),
        radial-gradient(1000px 500px at -10% 120%, #0a2b47 0%, transparent 56%),
        linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

.page {
    position: relative;
    z-index: 1;
    max-width: 1120px;
    margin: 26px auto 24px;
    padding: 0 18px 18px;
    display: grid;
    gap: 14px;
}

.panel {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: linear-gradient(160deg, var(--panel-strong), var(--panel));
    backdrop-filter: blur(8px);
    box-shadow: 0 20px 44px rgba(0, 0, 0, 0.28);
}

.hero {
    padding: 26px 26px 24px;
}

.eyebrow {
    margin: 0;
    letter-spacing: 2.2px;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
}

.hero h1 {
    margin: 8px 0 0;
    font-size: clamp(30px, 4vw, 50px);
    line-height: 1.14;
}

.lead {
    margin: 12px 0 0;
    max-width: 780px;
    color: var(--text-sub);
    line-height: 1.68;
    font-size: 16px;
}

.tagline {
    margin: 14px 0 0;
    color: #c9ebff;
    font-size: 15px;
    letter-spacing: 0.4px;
    transition: opacity 0.28s ease;
}

.tagline.is-switching {
    opacity: 0.42;
}

.promo-box {
    margin-top: 18px;
    border: 1px solid #2d5a7c;
    border-radius: 14px;
    padding: 14px 14px 12px;
    background: rgba(7, 15, 26, 0.72);
}

.promo-title {
    margin: 0;
    font-size: 12px;
    letter-spacing: 1.4px;
    color: #8bdfff;
}

.promo-link {
    margin: 8px 0 0;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px dashed #4a799f;
    background: rgba(10, 24, 40, 0.9);
    color: #e2f4ff;
    font-size: 15px;
    line-height: 1.5;
    word-break: break-all;
}

.promo-note {
    margin: 8px 0 0;
    color: #99b6d1;
    font-size: 13px;
    line-height: 1.55;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.card {
    padding: 16px;
}

.card h2 {
    margin: 0;
    font-size: 19px;
    color: #8bdfff;
}

.card p {
    margin: 8px 0 0;
    color: var(--text-sub);
    line-height: 1.62;
}

.story {
    padding: 20px;
}

.story-kicker {
    margin: 0;
    font-size: 12px;
    letter-spacing: 2px;
    color: #77d8ff;
}

.story h2 {
    margin: 8px 0 0;
    font-size: clamp(22px, 3vw, 34px);
    line-height: 1.25;
}

.story p {
    margin: 12px 0 0;
    color: var(--text-sub);
    line-height: 1.72;
}

.footer {
    position: relative;
    z-index: 1;
    padding: 0 18px 24px;
    text-align: center;
    color: #88a3be;
    font-size: 13px;
}

.footer p {
    margin: 0;
}

@media (max-width: 960px) {
    .cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 700px) {
    .page {
        margin-top: 16px;
        padding: 0 12px 14px;
    }

    .hero {
        padding: 18px;
    }
}