.gpk-cs-container {
    max-width: 880px;
    margin: 20px auto;
    padding: 24px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #333;
}

.gpk-cs-container h2 {
    margin: 0 0 20px;
    font-size: 24px;
    text-align: center;
    color: #1a73e8;
}

/* 搜索栏 */
.gpk-cs-search {
    margin-bottom: 20px;
}

.gpk-cs-search-row {
    display: flex;
    gap: 10px;
}

.gpk-cs-search-row input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    font-size: 16px;
}

.gpk-cs-search-row input:focus {
    outline: none;
    border-color: #1a73e8;
    box-shadow: 0 0 0 2px rgba(26,115,232,0.15);
}

#cs-btn-search {
    padding: 10px 28px;
    background: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

#cs-btn-search:hover {
    background: #1557b0;
}

#cs-btn-search:disabled {
    background: #a8c7fa;
    cursor: not-allowed;
}

/* 状态 */
.gpk-cs-status {
    text-align: center;
    padding: 24px 16px;
    color: #5f6368;
    font-size: 14px;
}

.gpk-cs-status.error {
    color: #c53929;
}

.gpk-cs-status.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 8px;
    border: 2px solid #dadce0;
    border-top-color: #1a73e8;
    border-radius: 50%;
    animation: gpk-cs-spin 0.6s linear infinite;
    vertical-align: middle;
}

@keyframes gpk-cs-spin {
    to { transform: rotate(360deg); }
}

/* 操作员卡片 */
.gpk-cs-card {
    background: #f8f9fa;
    border: 1px solid #e8eaed;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}

.gpk-cs-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid #e8eaed;
}

.gpk-cs-callsign {
    font-size: 28px;
    font-weight: 700;
    color: #1a73e8;
    font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
    letter-spacing: 2px;
}

.gpk-cs-username {
    font-size: 14px;
    color: #5f6368;
}

/* 信息网格 */
.gpk-cs-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.gpk-cs-info-item {
    background: #fff;
    border: 1px solid #e8eaed;
    border-radius: 6px;
    padding: 12px;
}

.gpk-cs-info-label {
    font-size: 12px;
    color: #9aa0a6;
    margin-bottom: 4px;
}

.gpk-cs-info-value {
    font-size: 15px;
    font-weight: 600;
    color: #202124;
}

/* QSL 画廊 */
.gpk-cs-qsl-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #e8eaed;
}

.gpk-cs-qsl-section h4 {
    margin: 0 0 12px;
    font-size: 15px;
    color: #202124;
}

.gpk-cs-qsl-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.gpk-cs-qsl-item {
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #e8eaed;
    background: #fff;
    transition: transform 0.15s, box-shadow 0.15s;
}

.gpk-cs-qsl-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.gpk-cs-qsl-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.gpk-cs-qsl-meta {
    padding: 8px 10px;
    font-size: 12px;
    color: #5f6368;
}

.gpk-cs-qsl-meta .desc {
    font-size: 13px;
    color: #333;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gpk-cs-qsl-empty {
    color: #9aa0a6;
    font-size: 13px;
    padding: 12px 0;
}

/* 响应式 */
@media (max-width: 600px) {
    .gpk-cs-container {
        margin: 10px;
        padding: 16px;
    }

    .gpk-cs-container h2 {
        font-size: 20px;
    }

    .gpk-cs-search-row {
        flex-direction: column;
    }

    #cs-btn-search {
        width: 100%;
    }

    .gpk-cs-callsign {
        font-size: 22px;
    }

    .gpk-cs-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gpk-cs-qsl-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gpk-cs-qsl-item img {
        height: 120px;
    }
}