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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    min-height: 100vh;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    position: relative;
    overflow-x: hidden;
}

.container {
    max-width: 900px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
}

h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    background: linear-gradient(90deg, #00d4ff, #7b2ff7, #ff2d95);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-shadow: 0 0 40px rgba(123, 47, 247, 0.3);
}

.subtitle {
    font-size: clamp(1rem, 3vw, 1.4rem);
    color: #a8a8ff;
    margin-bottom: 50px;
    letter-spacing: 1px;
}

.subtitle span {
    color: #00ffc8;
    font-weight: bold;
}

.cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 40px 30px;
    width: 320px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.6);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
}

.card.two:hover {
    border-color: rgba(255, 45, 149, 0.6);
    box-shadow: 0 20px 60px rgba(255, 45, 149, 0.2);
}

.version {
    font-size: 2.2rem;
    font-weight: bold;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.card.one .version {
    color: #00d4ff;
}

.card.two .version {
    color: #ff2d95;
}

.tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    margin-bottom: 25px;
    letter-spacing: 1px;
}

.card.one .tag {
    background: rgba(0, 212, 255, 0.15);
    color: #00d4ff;
    border: 1px solid rgba(0, 212, 255, 0.4);
}

.card.two .tag {
    background: rgba(255, 45, 149, 0.15);
    color: #ff2d95;
    border: 1px solid rgba(255, 45, 149, 0.4);
}

.feature-list {
    list-style: none;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.feature-list li {
    padding: 8px 0;
    color: #d0d0d0;
}

.download-btn {
    display: inline-block;
    padding: 14px 40px;
    border-radius: 40px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.card.one .download-btn {
    background: linear-gradient(135deg, #00d4ff, #2196f3);
    color: #fff;
}

.card.two .download-btn {
    background: linear-gradient(135deg, #ff2d95, #ff6b6b);
    color: #fff;
}

.download-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.site-footer {
    margin-top: 60px;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    width: 100%;
}

.footer-info {
    margin-bottom: 20px;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.social-icon-link {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #d0d0d0;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icon-link:hover {
    color: #00d4ff;
    border-color: rgba(0, 212, 255, 0.6);
    background: rgba(0, 212, 255, 0.12);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.25);
}

.social-icon-link.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.social-icon-link.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.08);
    color: #d0d0d0;
}

.footer-note {
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

#toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    letter-spacing: 1px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

#toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}