body {
    background: #f6f8fb;
}

.buy-steps {
    max-width: 1200px;
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    padding-top: 60px;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    color: #666;
}

.step-item.active {
    color: #2563eb;
}

.step-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #e5e7eb;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step-item.active .step-number {
    background: #2563eb;
    color: #fff;
}

.buy-row {
    display: flex;
    gap: 24px;
    max-width: 1280px;
    margin: 40px auto;
    justify-content: center;
}

.buy-card {
    flex: 1 1 0;
    min-width: 280px;
    max-width: 370px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
    padding: 32px 24px 28px 24px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.buy-card.pro {
    background: #2563eb;
    color: #fff;
}

.buy-card.ent {
    background: #142b4d;
    color: #fff;
}

.buy-card.remote {
    background: #18132f;
    color: #fff;
}

.buy-card .buy-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.buy-card .buy-select-row {
    margin-bottom: 16px;
}

.buy-card select {
    width: 100%;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
    font-size: 1rem;
}

.buy-card.pro select,
.buy-card.ent select {
    background: #fff;
    color: #222;
}

.buy-card .buy-price {
    font-size: 1.5rem;
    font-weight: bold;
    margin: 10px 0 6px 0;
    color: #e53e3e;
}

.buy-card.pro .buy-price,
.buy-card.ent .buy-price,
.buy-card.remote .buy-price {
    color: #ffe066;
}

.buy-card .buy-pernode {
    color: #888;
    font-size: 1rem;
    margin-bottom: 10px;
}

.buy-card.pro .buy-pernode,
.buy-card.ent .buy-pernode {
    color: #ffe066;
}

.buy-card ul {
    margin: 0 0 0 0;
    padding: 0;
    list-style: none;
}

.buy-card li {
    margin-bottom: 8px;
    font-size: 1rem;
    display: flex;
    align-items: center;
}

.buy-card li .tag {
    display: inline-block;
    background: #e0e7ff;
    color: #2563eb;
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 0.92em;
    margin-left: 8px;
}

.buy-card.pro li .tag,
.buy-card.ent li .tag {
    background: #fff;
    color: #2563eb;
}

.buy-card li .ok {
    color: #22c55e;
    font-size: 1.1em;
    margin-right: 4px;
}

.buy-card li .warn {
    color: #f59e42;
    font-size: 1.1em;
    margin-right: 4px;
}

.buy-card li .info {
    color: #2563eb;
    font-size: 1.1em;
    margin-right: 4px;
}

.buy-card .ent-extra {
    margin-top: 18px;
    border-top: 1px solid #fff2;
    padding-top: 12px;
    font-size: 1.05em;
}

.buy-card .ent-extra .tag {
    background: #ffe066;
    color: #142b4d;
}

@media (max-width: 1000px) {
    .buy-row {
        flex-direction: column;
        align-items: center;
        gap: 18px;
    }

    .buy-card {
        max-width: 98vw;
    }
}

/* 平板端适配 */
@media (max-width: 1024px) and (min-width: 769px) {
    .buy-steps {
        gap: 30px;
        padding-top: 40px;
    }

    .buy-row {
        gap: 20px;
        margin: 30px auto;
    }

    .buy-card {
        padding: 28px 20px 24px 20px;
    }

    .payment-qr {
        gap: 40px;
    }

    .qr-item img {
        width: 250px;
        height: 250px;
    }
}

.buy-contact,
.buy-note {
    max-width: 1200px;
    margin: 0 auto 18px auto;
}

.buy-contact {
    background: #f6f8fb;
    border-radius: 8px;
    padding: 18px 20px;
}

.buy-highlight {
    color: #e53e3e;
    font-weight: bold;
}

.buy-note {
    color: #888;
    font-size: 0.98rem;
    margin-top: 18px;
}

/* 第二步支付样式 */
.payment-section {
    max-width: 1200px;
    margin: 40px auto;
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
}

.payment-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 30px;
    text-align: center;
    color: #333;
}

.payment-qr {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 30px;
}

.qr-item {
    text-align: center;
}

.qr-item img {
    width: 300px;
    height: 300px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: 10px;
}

.qr-item p {
    font-size: 1.1rem;
    font-weight: bold;
    color: #333;
}

/* 第三步表单样式 */
.form-section {
    max-width: 1200px;
    margin: 40px auto;
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
}

.form-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 30px;
    text-align: center;
    color: #333;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    box-sizing: border-box;
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.form-submit button {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 15px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

.form-submit button:hover {
    background: #1d4ed8;
}

.form-submit button:disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

/* 触摸友好的交互优化 */
.buy-card select,
.form-group input,
.form-group select,
.form-group textarea {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    touch-action: manipulation;
}

/* 确保在移动设备上有足够的点击区域 */
.buy-card select,
.form-group input,
.form-group select,
.form-group textarea {
    min-height: 44px;
}

/* 防止iOS缩放 */
@media screen and (-webkit-min-device-pixel-ratio: 0) {

    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
    }
}

/* 手机端适配优化 */
@media (max-width: 768px) {

    /* 步骤指示器 */
    .buy-steps {
        flex-direction: column;
        gap: 15px;
        padding-top: 30px;
        margin: 10px auto;
    }
    .layui-layout-admin{
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
    }

    .step-item {
        font-size: 1rem;
        gap: 8px;
    }

    .step-number {
        width: 25px;
        height: 25px;
        font-size: 0.9rem;
    }

    /* 购买卡片 */
    .buy-row {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        margin: 20px auto;
    }

    .buy-card {
        width: 95vw;
        padding: 20px 16px 16px 16px;
    }

    .buy-card .buy-title {
        font-size: 1.2rem;
        margin-bottom: 15px;
    }

    .buy-card .buy-price {
        font-size: 1.3rem;
        margin: 8px 0 4px 0;
    }

    .buy-card .buy-pernode {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }

    .buy-card li {
        font-size: 0.9rem;
        margin-bottom: 6px;
    }

    .buy-card li .tag {
        font-size: 0.85em;
        margin-left: 6px;
        padding: 1px 6px;
    }

    /* 支付区域 */
    .payment-section {
        margin: 20px auto;
        padding: 20px;
        border-radius: 12px;
    }

    .payment-title {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }

    .payment-qr {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        margin-bottom: 20px;
    }

    .qr-item img {
        width: 200px;
        height: 200px;
        margin-bottom: 8px;
    }

    .qr-item p {
        font-size: 1rem;
    }

    /* 表单区域 */
    .form-section {
        margin: 20px auto;
        padding: 20px;
        border-radius: 12px;
    }

    .form-title {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }

    .form-row {
        flex-direction: column;
        gap: 15px;
        margin-bottom: 15px;
    }

    .form-group label {
        font-size: 0.95rem;
        margin-bottom: 6px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        font-size: 16px;
        /* 防止iOS缩放 */
    }

    .form-group textarea {
        height: 80px;
    }

    .form-submit {
        margin-top: 20px;
    }

    .form-submit button {
        padding: 12px 30px;
        font-size: 1rem;
        width: 100%;
    }

    /* 说明和联系方式 */
    .buy-note {
        font-size: 0.9rem;
        margin: 15px auto;
        padding: 0 10px;
    }

    .buy-contact {
        margin: 15px auto;
        padding: 15px;
        border-radius: 8px;
    }
}

/* 超小屏幕适配 */
@media (max-width: 480px) {
    body {
        padding: 0 8px;
    }

    .buy-steps {
        padding-top: 20px;
        gap: 12px;
    }

    .step-item {
        font-size: 0.9rem;
    }

    .step-number {
        width: 22px;
        height: 22px;
        font-size: 0.8rem;
    }

    .buy-card {
        padding: 16px 12px 12px 12px;
        width: 90vw;
        margin: 0 auto;
    }
    .layui-layout-admin{
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
    }

    .buy-card .buy-title {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }

    .buy-card .buy-price {
        font-size: 1.2rem;
    }

    .buy-card li {
        font-size: 0.85rem;
        margin-bottom: 5px;
    }

    .payment-section,
    .form-section {
        padding: 16px;
        margin: 15px auto;
    }

    .payment-title,
    .form-title {
        font-size: 1.2rem;
        margin-bottom: 15px;
    }

    .qr-item img {
        width: 180px;
        height: 180px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 8px;
        font-size: 16px;
        /* 防止iOS缩放 */
    }

    .form-submit button {
        padding: 10px 20px;
        font-size: 0.95rem;
    }

    .buy-note {
        font-size: 0.85rem;
        padding: 0 8px;
    }

    .buy-contact {
        padding: 12px;
        font-size: 0.9rem;
    }
}

/* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .buy-steps {
        flex-direction: row;
        gap: 20px;
        padding-top: 20px;
    }

    .buy-row {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px;
    }

    .buy-card {
        flex: 1 1 calc(50% - 10px);
        min-width: 200px;
    }

    .payment-qr {
        flex-direction: row;
        gap: 30px;
    }

    .qr-item img {
        width: 150px;
        height: 150px;
    }
}