:root {
    --bg: #0f0f11;
    --card: #1a1a1f;
    --text: #e8e8ed;
    --text-muted: #a0a0ab;
    --accent: #ff4d6d;
    --border: #2a2a32;
}

* {
    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;
}

.container {
    max-width: 780px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

header p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 28px;
    padding: 16px 52px;
    background: linear-gradient(135deg, #ff4d6d, #e6254e);
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: 999px;
    text-decoration: none;
    border: 1px solid rgba(255, 138, 154, 0.5);
    box-shadow: 0 0 26px rgba(255, 77, 109, 0.55), 0 8px 24px rgba(230, 37, 78, 0.35);
    animation: btn-pulse 2s ease-in-out infinite;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-btn:hover {
    transform: translateY(-3px) scale(1.04);
    box-shadow: 0 0 42px rgba(255, 77, 109, 0.85), 0 14px 32px rgba(230, 37, 78, 0.55);
}

.download-btn:active {
    transform: translateY(-1px) scale(1.01);
}

.download-icon {
    display: inline-block;
    font-size: 1.4rem;
    font-weight: 700;
    animation: icon-bounce 1.6s ease-in-out infinite;
}

@keyframes btn-pulse {
    0%, 100% {
        box-shadow: 0 0 26px rgba(255, 77, 109, 0.55), 0 8px 24px rgba(230, 37, 78, 0.35);
    }
    50% {
        box-shadow: 0 0 46px rgba(255, 77, 109, 0.9), 0 8px 28px rgba(230, 37, 78, 0.6);
    }
}

@keyframes icon-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(4px);
    }
}

section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 32px;
    margin-bottom: 24px;
}

section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

section h2::before {
    content: "";
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--accent);
    border-radius: 2px;
}

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

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

ul li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    color: var(--text);
}

ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.priority-list {
    counter-reset: item;
}

.priority-list li {
    counter-increment: item;
    padding-left: 36px;
}

.priority-list li::before {
    content: counter(item);
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    background: var(--accent);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.priority-list strong {
    display: block;
    margin-bottom: 4px;
    color: #fff;
}

.disclaimer {
    background: #1f1518;
    border-color: #3a2228;
}

.disclaimer h2 {
    color: #ff8a9a;
}

.disclaimer h2::before {
    background: #ff8a9a;
}

.disclaimer p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

footer {
    text-align: center;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

    header h1 {
        font-size: 1.7rem;
    }

    .download-btn {
        padding: 14px 40px;
        font-size: 1.05rem;
    }

    section {
        padding: 22px 20px;
    }
}