:root {
    --bg: #0c0c0e;
    --card: #16161a;
    --text: #f0f0f5;
    --text-muted: #9b9ba8;
    --accent: #fb923c;
    --accent-soft: #fdba74;
    --border: #2c2c34;
    --gradient: linear-gradient(135deg, #fb923c 0%, #f97316 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    padding: 40px 20px;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 48px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--border);
}

.badge {
    display: inline-block;
    background: var(--gradient);
    color: #1a1a1a;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 5px 16px;
    border-radius: 20px;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}

header h1 {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 10px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header .subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 24px;
    padding: 16px 44px;
    background: var(--gradient);
    color: #1a1a1a;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 6px 24px rgba(251, 146, 60, 0.45);
    animation: btn-pulse 2s ease-in-out infinite;
    transition: transform 0.2s, box-shadow 0.2s;
}

.download-btn:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 10px 32px rgba(251, 146, 60, 0.6);
}

.download-btn:active {
    transform: scale(0.97);
}

@keyframes btn-pulse {
    0%, 100% {
        box-shadow: 0 6px 24px rgba(251, 146, 60, 0.45);
    }
    50% {
        box-shadow: 0 6px 36px rgba(251, 146, 60, 0.75);
    }
}

section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px 32px;
    margin-bottom: 22px;
    transition: border-color 0.2s;
}

section:hover {
    border-color: #3a3a45;
}

section h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
}

section h2::before {
    content: "";
    width: 4px;
    height: 18px;
    background: var(--gradient);
    border-radius: 2px;
    flex-shrink: 0;
}

p {
    color: var(--text);
    margin-bottom: 12px;
}

p:last-child {
    margin-bottom: 0;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 14px;
    color: var(--text);
}

ul li:last-child {
    margin-bottom: 0;
}

ul li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.85rem;
}

ul li strong {
    color: #fff;
}

.stats {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
}

.stat-item {
    background: #1f1f26;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 20px;
    min-width: 120px;
    text-align: center;
}

.stat-item .num {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-soft);
    display: block;
}

.stat-item .label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.highlight {
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.08), rgba(249, 115, 22, 0.08));
    border: 1px solid rgba(251, 146, 60, 0.25);
    border-radius: 14px;
    padding: 20px 24px;
    margin-top: 16px;
}

.highlight p {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.tag {
    background: #1f1f26;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.88rem;
}

.disclaimer {
    background: #1a1216;
    border-color: #3a252c;
}

.disclaimer h2 {
    color: #fdba74;
}

.disclaimer h2::before {
    background: #fdba74;
}

.disclaimer p {
    color: var(--text-muted);
    font-size: 0.93rem;
}

footer {
    text-align: center;
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.88rem;
}

@media (max-width: 600px) {
    body {
        padding: 24px 16px;
    }

    .download-btn {
        padding: 14px 32px;
        font-size: 1.05rem;
    }

    header h1 {
        font-size: 2.1rem;
    }

    section {
        padding: 22px 20px;
    }

    .stats {
        gap: 10px;
    }

    .stat-item {
        min-width: 100px;
        padding: 12px 16px;
    }
}