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

body {
    background: #000;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 400px;
}

.count-display {
    text-align: center;
    margin-bottom: 60px;
}

.label {
    display: block;
    font-size: 14px;
    color: #888;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.count {
    font-size: 72px;
    font-weight: 300;
    color: #fff;
}

.input-group {
    margin-bottom: 30px;
}

input {
    width: 100%;
    padding: 16px 20px;
    background: #0a0a0a;
    border: 1px solid #333;
    color: #fff;
    font-size: 16px;
    text-align: center;
    letter-spacing: 4px;
    text-transform: uppercase;
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: #fff;
}

input::placeholder {
    color: #555;
    letter-spacing: 1px;
}

.login-btn {
    width: 100%;
    padding: 16px;
    background: #fff;
    color: #000;
    border: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    letter-spacing: 2px;
    transition: all 0.3s;
}

.login-btn:hover {
    background: #ddd;
}

.login-btn:active {
    transform: scale(0.98);
}

.login-btn:disabled {
    background: #333;
    color: #666;
    cursor: not-allowed;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.show {
    display: flex;
}

.modal-content {
    text-align: center;
    padding: 40px;
}

.icon {
    margin-bottom: 20px;
}

.icon.success {
    color: #4ade80;
}

.icon.error {
    color: #ef4444;
}

.message {
    font-size: 24px;
    margin-bottom: 30px;
}

.close-btn {
    padding: 12px 40px;
    background: transparent;
    color: #fff;
    border: 1px solid #fff;
    font-size: 14px;
    cursor: pointer;
    letter-spacing: 2px;
    transition: all 0.3s;
}

.close-btn:hover {
    background: #fff;
    color: #000;
}

@media (max-width: 768px) {
    .count {
        font-size: 56px;
    }
    
    .container {
        max-width: 100%;
    }
}

/* 卡密验证模态框 */
.card-verify-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.card-verify-box {
    background: #111;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #333;
    max-width: 400px;
    width: 90%;
    text-align: center;
}

.card-verify-box h2 {
    color: #fff;
    font-size: 24px;
    margin-bottom: 10px;
}

.card-verify-box p {
    color: #888;
    font-size: 14px;
    margin-bottom: 20px;
}

.card-verify-box input {
    width: 100%;
    padding: 12px 15px;
    background: #000;
    border: 1px solid #333;
    border-radius: 4px;
    color: #fff;
    font-size: 14px;
    text-align: center;
    margin-bottom: 10px;
}

.card-verify-box input:focus {
    outline: none;
    border-color: #666;
}

.error-message {
    background: #2a0000;
    color: #ff6b6b;
    border: 1px solid #4a0000;
    padding: 10px;
    border-radius: 4px;
    font-size: 14px;
    margin-bottom: 10px;
}

.verify-btn {
    width: 100%;
    padding: 14px;
    background: #fff;
    color: #000;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.verify-btn:hover {
    background: #e0e0e0;
}

.verify-btn:disabled {
    background: #333;
    color: #666;
    cursor: not-allowed;
}

/* 卡密信息显示 */
.card-info-badge {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #111;
    border: 1px solid #333;
    border-radius: 4px;
    padding: 10px 15px;
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: #888;
    z-index: 100;
}

.card-info-badge span {
    color: #ccc;
}