body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #1a1a2e;
    color: #e0e0e0;
    overflow-x: hidden;
    min-height: 100vh;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    top: 0;
    left: 0;
}

.container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: fadeInDown 1s ease-out;
    color: #e94560;
    text-shadow: 0 2px 10px rgba(233, 69, 96, 0.3);
    font-weight: 700;
}

.cards-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
    flex-wrap: wrap;
    width: 100%;
    max-width: 1200px;
}

.card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 30px;
    width: 280px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInUp 1s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(233, 69, 96, 0.3);
}

.card h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #e94560;
    font-weight: 600;
    position: relative;
}

.card p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 25px;
    color: #c0c0c0;
    opacity: 0.9;
}

.button {
    display: inline-block;
    padding: 14px 28px;
    font-size: 1rem;
    text-decoration: none;
    color: #fff;
    background: linear-gradient(135deg, #e94560, #d43d51);
    border-radius: 50px;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
    position: relative;
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.button:hover::before {
    left: 100%;
}

.button:hover {
    background: linear-gradient(135deg, #d43d51, #c03547);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.4);
}

.button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(233, 69, 96, 0.3);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 平板设备适配 */
@media (max-width: 1024px) {
    .container {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 3.5rem;
    }
    
    .cards-container {
        gap: 25px;
    }
    
    .card {
        width: 260px;
        padding: 25px;
    }
}

/* 手机端适配 */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
        justify-content: flex-start;
        padding-top: 60px;
    }
    
    h1 {
        font-size: 2.8rem;
        margin-bottom: 0.5rem;
        line-height: 1.2;
    }
    
    .cards-container {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        margin-top: 30px;
        width: 100%;
    }
    
    .card {
        width: 100%;
        max-width: 350px;
        padding: 25px 20px;
        margin: 0 auto;
        animation: fadeInUp 0.8s ease-out;
        border-radius: 16px;
    }
    
    .card h2 {
        font-size: 1.6rem;
        margin-bottom: 12px;
    }
    
    .card p {
        font-size: 0.95rem;
        margin-bottom: 20px;
        line-height: 1.5;
    }
    
    .button {
        padding: 12px 24px;
        font-size: 0.95rem;
        width: 100%;
        max-width: 200px;
        display: block;
        margin: 0 auto;
    }
}

/* 小屏手机适配 */
@media (max-width: 480px) {
    .container {
        padding: 15px 10px;
        padding-top: 50px;
    }
    
    h1 {
        font-size: 2.2rem;
        margin-bottom: 0.3rem;
    }
    
    .cards-container {
        gap: 15px;
        margin-top: 25px;
    }
    
    .card {
        padding: 20px 15px;
        border-radius: 12px;
        max-width: 320px;
    }
    
    .card h2 {
        font-size: 1.4rem;
        margin-bottom: 10px;
    }
    
    .card p {
        font-size: 0.9rem;
        margin-bottom: 18px;
        line-height: 1.4;
    }
    
    .button {
        padding: 10px 20px;
        font-size: 0.9rem;
        border-radius: 25px;
    }
}

/* 超小屏手机适配 */
@media (max-width: 360px) {
    .container {
        padding: 10px 8px;
        padding-top: 40px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 18px 12px;
        max-width: 280px;
    }
    
    .card h2 {
        font-size: 1.3rem;
    }
    
    .card p {
        font-size: 0.85rem;
    }
    
    .button {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}

/* 横屏模式适配 */
@media (max-height: 500px) and (orientation: landscape) {
    .container {
        padding-top: 20px;
        justify-content: flex-start;
    }
    
    h1 {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }
    
    .cards-container {
        margin-top: 15px;
        flex-direction: row;
        gap: 15px;
        flex-wrap: wrap;
    }
    
    .card {
        width: 200px;
        padding: 15px;
        max-width: none;
    }
    
    .card h2 {
        font-size: 1.2rem;
        margin-bottom: 8px;
    }
    
    .card p {
        font-size: 0.8rem;
        margin-bottom: 12px;
    }
    
    .button {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .card:hover {
        transform: none;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    }
    
    .button:hover {
        transform: none;
        box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
    }
    
    .card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
    
    .button:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
}