/* 套餐页面主容器 */
.package-container {
    padding: 20px 15px 100px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 套餐列表布局 */
.package-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin: 0;
    padding: 0;
    list-style: none;
}

/* 套餐卡片基础样式 */
.package-card {
    background: white;
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 20px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

    .package-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    }

/* 套餐头部样式 */
.package-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e5e7eb;
}

    .package-header h2 {
        font-size: 1.3rem;
        color: var(--primary-color);
        margin: 0;
    }

.package-price {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ef4444;
}

    .package-price span {
        font-size: 0.9em;
    }

/* 套餐控制区域 */
.package-controls {
    margin-bottom: 20px;
}

.control-group {
    margin-bottom: 15px;
}

    .control-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 500;
        color: #4b5563;
    }

/* 数量选择器样式 */
.quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    overflow: hidden;
}

.quantity-btn {
    width: 40px;
    height: 40px;
    background: #f9fafb;
    border: none;
    font-size: 1.2rem;
    color: #6b7280;
    cursor: pointer;
    transition: var(--transition);
}

    .quantity-btn:hover {
        background: #f3f4f6;
        color: var(--primary-color);
    }

.quantity-input {
    flex: 1;
    height: 40px;
    border: none;
    text-align: center;
    font-size: 1rem;
    -moz-appearance: textfield;
}

    .quantity-input::-webkit-outer-spin-button,
    .quantity-input::-webkit-inner-spin-button {
        -webkit-appearance: none;
        margin: 0;
    }

/* 选项列表样式 */
.duration-options,
.quantity-options,
.interval-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin: 0;
    list-style: none;
}

    .duration-options li,
    .quantity-options li,
    .interval-options li {
        flex: 1;
        min-width: 60px;
    }

.duration-option,
.quantity-option,
.interval-option {
    display: block;
    padding: 8px 10px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    text-align: center;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

    .duration-option:hover,
    .quantity-option:hover,
    .interval-option:hover {
        border-color: var(--primary-color);
        color: var(--primary-color);
    }

    .duration-option.on,
    .quantity-option.on,
    .interval-option.on {
        background: var(--primary-color);
        color: white;
        border-color: var(--primary-color);
    }

/* 固定数量/间隔显示样式 */
.fixed-quantity,
.fixed-interval {
    padding: 10px;
    background: #f9fafb;
    border-radius: 6px;
    text-align: center;
    font-size: 0.95rem;
}

/* 购买按钮样式 */
.buy-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 20px;
}

    .buy-btn:hover {
        background: var(--primary-hover);
    }

/* 套餐详情区域 */
.package-details {
    padding: 15px;
    background: #f9fafb;
    border-radius: 6px;
}

    .package-details h3 {
        font-size: 1.1rem;
        color: var(--primary-color);
        margin-top: 0;
        margin-bottom: 15px;
        padding-bottom: 8px;
        border-bottom: 1px solid #e5e7eb;
    }

    .package-details ul {
        padding: 0;
        margin: 0;
        list-style: none;
    }

    .package-details li {
        position: relative;
        padding: 6px 0 6px 15px;
        font-size: 0.9rem;
        color: #4b5563;
    }

        .package-details li::before {
            content: '•';
            color: var(--primary-color);
            position: absolute;
            left: 0;
        }

    .package-details strong {
        color: #1f2937;
    }

/* 不同类型套餐的特殊样式 */
.unlimited-package {
    border-top: 3px solid #10b981;
}

.deduplicate-package {
    border-top: 3px solid #3b82f6;
}

.timed-deduplicate-package {
    border-top: 3px solid #f59e0b;
}

/* 支付模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

    .modal.active {
        opacity: 1;
        visibility: visible;
    }

.modal-content {
    background: white;
    border-radius: var(--card-radius);
    width: 90%;
    max-width: 400px;
    padding: 25px;
    position: relative;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6b7280;
}

.modal h2 {
    margin-top: 0;
    color: var(--primary-color);
    text-align: center;
}

.payment-methods {
    margin-bottom: 25px;
}

    .payment-methods h3 {
        font-size: 1rem;
        color: #6b7280;
        margin-bottom: 15px;
    }

.method-options {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.method-option {
    flex: 1;
    padding: 12px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

    .method-option.active {
        background: var(--primary-color);
        color: white;
        border-color: var(--primary-color);
    }

    .method-option:hover:not(.active) {
        border-color: var(--primary-color);
    }

.payment-summary {
    text-align: center;
    margin-bottom: 25px;
}

    .payment-summary h3 {
        font-size: 1rem;
        color: #6b7280;
        margin-bottom: 10px;
    }

.payment-amount {
    font-size: 2rem;
    font-weight: 600;
    color: #ef4444;
}

.confirm-payment {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

    .confirm-payment:hover {
        background: var(--primary-hover);
    }

/* 响应式调整 */
@media (min-width: 768px) {
    .package-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .package-header h2 {
        font-size: 1.5rem;
    }

    .package-price {
        font-size: 1.8rem;
    }
}

@media (min-width: 1024px) {
    .package-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 无障碍优化 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

[role="radio"] {
    cursor: pointer;
}

[role="radiogroup"] {
    display: flex;
    gap: 8px;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.package-card {
    animation: fadeIn 0.3s ease forwards;
}

    .package-card:nth-child(odd) {
        animation-delay: 0.1s;
    }

    .package-card:nth-child(even) {
        animation-delay: 0.2s;
    }