/* ===== 卡片网格（原有 2列 用于 pay.html 4卡片，现保留作为备用） ===== */
.card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px 44px;
    max-width: 820px;
    margin: 10px auto 24px auto;
}

/* ===== 两列卡片网格（主入口 pay.html 和注册卡 payzc.html） ===== */
.card-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px 44px;
    max-width: 820px;
    margin: 10px auto 24px auto;
}

/* ===== 三列卡片网格（续费卡 payxf.html） ===== */
.card-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px 30px;
    max-width: 960px;
    margin: 10px auto 24px auto;
}

/* ===== Download 专用网格（两列） ===== */
.card-grid-download {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    max-width: 820px;
    margin: 10px auto 24px auto;
}

/* ===== FAQ 专用 Flex 布局（订单查询居中，第二行三列均分） ===== */
.faq-card-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 960px;
    margin: 10px auto;
}
.faq-card-container .faq-row-1 {
    display: flex;
    justify-content: center;
}
.faq-card-container .faq-row-1 .card-item {
    max-width: 400px;
    width: 100%;
}
.faq-card-container .faq-row-2 {
    display: flex;
    gap: 30px;
    justify-content: space-between;
}
.faq-card-container .faq-row-2 .card-item {
    flex: 1;
}

/* ===== 单个卡片（通用） ===== */
.card-item {
    position: relative;
    background: rgba(20, 20, 28, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 18px;
    padding: 28px 18px 24px 18px;
    text-align: center;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
    transition: transform 0.25s ease, box-shadow 0.30s ease, border-color 0.25s ease;
    user-select: none;
}

.card-item::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 20px;
    right: 20px;
    height: 5px;
    border-radius: 0 0 8px 8px;
    background: #b59f74;
    transition: left 0.25s ease, right 0.25s ease;
}

.card-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.65);
    border-color: rgba(255, 255, 255, 0.20);
}

.card-item:hover::before {
    left: 10px;
    right: 10px;
}

/* ----- 各卡片专属颜色（暖色系 · 支付页） ----- */
.card-gold::before {
    background: #D4A017;
}
.card-gold .card-title {
    color: #F5D76E;
}
.card-gold .card-icon {
    color: #F5D76E;
}

.card-orange::before {
    background: #E8892C;
}
.card-orange .card-title {
    color: #F5A623;
}
.card-orange .card-icon {
    color: #F5A623;
}

.card-green::before {
    background: #3AAA6E;
}
.card-green .card-title {
    color: #6FCF97;
}
.card-green .card-icon {
    color: #6FCF97;
}

.card-red::before {
    background: #D94F4A;
}
.card-red .card-title {
    color: #F28B82;
}
.card-red .card-icon {
    color: #F28B82;
}

.card-teal::before {
    background: #1a8a7a;
}
.card-teal .card-title {
    color: #4dd0b0;
}
.card-teal .card-icon {
    color: #4dd0b0;
}

.card-amber::before {
    background: #c97d0e;
}
.card-amber .card-title {
    color: #f5b342;
}
.card-amber .card-icon {
    color: #f5b342;
}

/* ----- 冷色系（下载页 & 售后页） ----- */
.card-blue::before {
    background: #1e88e5;
}
.card-blue .card-title {
    color: #64b5f6;
}
.card-blue .card-icon {
    color: #64b5f6;
}

.card-purple::before {
    background: #7b1fa2;
}
.card-purple .card-title {
    color: #ce93d8;
}
.card-purple .card-icon {
    color: #ce93d8;
}

.card-pink::before {
    background: #c2185b;
}
.card-pink .card-title {
    color: #f06292;
}
.card-pink .card-icon {
    color: #f06292;
}

.card-cyan::before {
    background: #00838f;
}
.card-cyan .card-title {
    color: #4dd0e1;
}
.card-cyan .card-icon {
    color: #4dd0e1;
}

/* ----- 卡片内部元素 ----- */
.card-icon {
    font-size: 42px;
    line-height: 1.2;
    margin-bottom: 8px;
    display: block;
    transition: transform 0.25s ease;
}

.card-item:hover .card-icon {
    transform: scale(1.10);
}

.card-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 4px;
    transition: color 0.25s ease;
}

.card-sub {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.60);
    letter-spacing: 2px;
    font-weight: 400;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding-top: 10px;
    margin-top: 6px;
    display: inline-block;
    padding-left: 14px;
    padding-right: 14px;
}

/* ===== 淘宝二维码弹窗 ===== */
.taobao-modal-overlay {
    display: none;
    position: fixed;
    z-index: 99999;
    inset: 0;
    background: rgba(0, 0, 0, 0.78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.28s ease;
}

.taobao-modal-overlay.active {
    display: flex;
}

.taobao-modal-box {
    background: #1c1c24;
    border-radius: 28px;
    padding: 36px 40px 30px 40px;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.80);
    border: 1px solid rgba(255, 255, 255, 0.10);
    position: relative;
    text-align: center;
    animation: modalSlideUp 0.32s ease;
}

.taobao-modal-close {
    position: absolute;
    top: 12px;
    right: 18px;
    font-size: 32px;
    line-height: 1;
    color: rgba(255, 255, 255, 0.40);
    cursor: pointer;
    transition: color 0.20s ease, transform 0.25s ease;
    background: none;
    border: none;
    padding: 4px 8px;
    font-weight: 300;
}

.taobao-modal-close:hover {
    color: #ffffff;
    transform: rotate(90deg);
}

.taobao-modal-title {
    font-size: 24px;
    font-weight: 700;
    color: #f0e6d3;
    margin-bottom: 6px;
    letter-spacing: 2px;
}

.taobao-modal-sub {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.50);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.taobao-qr-wrapper {
    background: #ffffff;
    border-radius: 18px;
    padding: 18px;
    display: inline-block;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.40);
    margin: 0 auto 12px auto;
    width: 200px;
    height: 200px;
    line-height: 200px;
    text-align: center;
    font-size: 0;
}

.taobao-qr-wrapper img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 6px;
    object-fit: contain;
}

.taobao-qr-placeholder {
    display: none;
    width: 100%;
    height: 100%;
    background: #f5f5f5;
    border-radius: 6px;
    color: #999;
    font-size: 16px;
    line-height: 200px;
    text-align: center;
    font-weight: 500;
}

.taobao-modal-tip {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
    margin-top: 6px;
    letter-spacing: 0.5px;
}

.taobao-modal-tip strong {
    color: rgba(255, 255, 255, 0.70);
    font-weight: 600;
}

/* ===== 动画 ===== */
@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(36px) scale(0.94);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
    .card-grid,
    .card-grid-2,
    .card-grid-download {
        grid-template-columns: 1fr 1fr;
        gap: 20px 16px;
        padding: 0 6px;
    }
    .card-grid-3 {
        grid-template-columns: 1fr 1fr;
        gap: 20px 16px;
        padding: 0 6px;
    }
    .card-grid-3 .card-item:last-child {
        grid-column: span 2;
    }
    .faq-card-container .faq-row-2 {
        flex-wrap: wrap;
        gap: 20px;
    }
    .faq-card-container .faq-row-2 .card-item {
        flex: 1 1 calc(50% - 10px);
    }
    .card-item {
        padding: 20px 10px 16px 10px;
    }
    .card-title {
        font-size: 20px;
    }
    .card-icon {
        font-size: 34px;
    }
    .card-sub {
        font-size: 14px;
        padding-top: 6px;
        margin-top: 2px;
    }
    .taobao-modal-box {
        padding: 28px 20px 24px 20px;
    }
    .taobao-qr-wrapper {
        width: 160px;
        height: 160px;
        line-height: 160px;
    }
    .taobao-qr-placeholder {
        line-height: 160px;
    }
}

@media (max-width: 480px) {
    .card-grid,
    .card-grid-2,
    .card-grid-3,
    .card-grid-download {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .card-grid-3 .card-item:last-child {
        grid-column: span 1;
    }
    .faq-card-container .faq-row-1 .card-item {
        max-width: 100%;
    }
    .faq-card-container .faq-row-2 .card-item {
        flex: 1 1 100%;
    }
    .card-title {
        font-size: 17px;
    }
    .card-icon {
        font-size: 28px;
    }
    .card-sub {
        font-size: 12px;
        padding-top: 4px;
    }
    .taobao-qr-wrapper {
        width: 130px;
        height: 130px;
        line-height: 130px;
    }
    .taobao-qr-placeholder {
        line-height: 130px;
        font-size: 13px;
    }
}