* {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

:root {
    --bg: #0F172A;
    --surface: #111B38;
    --surface2: #181F3C;
    --text: #E2E8F0;
    --muted: #A7B0C2;
    --primary: #5B7CFF;
    --primary2: #3E64FF;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 18px 48px rgba(0, 0, 0, 0.35)
}

body {
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: linear-gradient(180deg, #0C1225 0%, #0A101F 100%);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px
}

.page-wrap {
    width: min(980px, 92vw);
    background: linear-gradient(135deg, #111A34 0%, #0B1230 100%);
    border: 1px solid rgba(255, 255, 255, .04);
    border-radius: 20px;
    box-shadow: var(--shadow);
    overflow: hidden;
    padding: 24px
}

.hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 18px;
    padding: 12px;
    align-items: start
}

.eyebrow {
    display: inline-block;
    background: rgba(91, 124, 255, 0.16);
    color: #C6D4FF;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 10px
}

.hero h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: 10px
}

.subtitle {
    font-size: 1rem;
    color: var(--muted);
    max-width: 540px;
    margin-bottom: 12px
}

.meta-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap
}

.chip {
    background: rgba(99, 123, 255, .17);
    color: #D8E1FF;
    border: 1px solid rgba(255, 255, 255, .08);
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px
}

.feature-card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 14px;
    padding: 14px;
    color: #F5F7FF
}

.feature-title {
    font-weight: 700;
    margin-bottom: 8px
}

.feature-card ul {
    margin-left: 16px;
    list-style: disc;
    color: #D9E1FF
}

.feature-card li {
    margin-bottom: 6px
}

.download-area {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 16px
}

.card {
    background: rgba(20, 29, 55, 0.9);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 14px;
    padding: 16px;
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px
}

.card-tag {
    font-size: 12px;
    background: rgba(91, 124, 255, .2);
    color: #E8EEFF;
    padding: 3px 8px;
    border-radius: 999px;
    display: inline-block;
    margin-bottom: 6px
}

.card h2 {
    font-size: 1.35rem;
    margin-bottom: 6px
}

.desc {
    color: var(--muted);
    font-size: .95rem;
    margin-bottom: 0
}

.qrcode-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding-top: 6px
}

.qrcode-wrap img {
    width: 220px;
    height: 220px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .08);
    background: #fff
}

.mini-note {
    font-size: 12px;
    color: #9EA7C0;
    margin-top: 8px
}

.download-cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: start;
    margin-top: 6px
}

.btn {
    background: linear-gradient(135deg, #5D7EFF, #3A6FFF);
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 10px;
    transition: transform .15s ease, background .2s ease;
    box-shadow: 0 6px 18px rgba(53, 110, 255, 0.35)
}

.btn:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #4A69FF, #2F57FF)
}

.foot {
    margin-top: 18px;
    text-align: center;
    color: #8F9ABA;
    font-size: 12px
}

@media (max-width:860px) {
    .hero {
        grid-template-columns: 1fr
    }

    .download-area {
        grid-template-columns: 1fr
    }

    .page-wrap {
        padding: 16px
    }
}

.qrcode-inline {
    margin-top: 10px
}

.qrcode-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 10px;
    display: inline-block
}

.qrcode-card img {
    width: 260px;
    height: 130px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.08)
}