/* ========== 下载中心 (后台「软件管理」上传的安装包) ========== */
.download-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px 0;
}
.download-header {
    text-align: center;
    margin-bottom: 28px;
}
.download-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}
.download-header p {
    color: var(--text-secondary);
    font-size: 15px;
}
.download-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}
.download-tabs:empty {
    display: none;
}
.download-tab {
    padding: 6px 16px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all .15s;
}
.download-tab:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}
.download-tab.active {
    background: var(--accent-light);
    border-color: var(--accent-border);
    color: var(--accent);
}
.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}
.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color .15s, background .15s;
}
.download-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}
.download-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.download-card-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.download-card-platform {
    flex: none;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--accent-light);
    border: 1px solid var(--accent-border);
    color: var(--accent);
}
.download-card-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.download-card-tag {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 6px;
    background: var(--bg-input);
}
.download-card-zip {
    text-transform: uppercase;
}
.download-card-notes {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-muted);
    min-height: 20px;
}
.download-card-btn {
    display: block;
    width: 100%;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-align: center;
    padding: 10px 0;
    border-radius: 8px;
    background: var(--accent);
    color: #fff !important;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background .15s;
}
.download-card-btn:hover {
    background: var(--accent-hover);
}
.download-note {
    margin-top: 28px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== 扫码下载弹窗 ========== */
.dl-qr-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.dl-qr-mask {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .55);
}
.dl-qr-box {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    width: 280px;
    max-width: calc(100vw - 24px);
    text-align: center;
}
.dl-qr-close {
    position: absolute;
    top: 10px;
    right: 12px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}
.dl-qr-close:hover {
    color: var(--text-primary);
}
.dl-qr-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}
.dl-qr-code {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    border-radius: 8px;
    background: #fff;
}
.dl-qr-code img,
.dl-qr-code canvas {
    display: block;
    max-width: 100%;
}
.dl-qr-tip {
    margin-top: 12px;
    font-size: 13px;
    color: var(--text-muted);
}
.dl-qr-link {
    display: inline-block;
    margin-top: 8px;
    font-size: 13px;
    color: var(--accent);
    text-decoration: none;
    word-break: break-all;
}
.dl-qr-link:hover {
    text-decoration: underline;
}