/* ===================================
   AU-OPS 轨迹查询系统 - 响应式样式
   =================================== */

/* 大屏幕设备 (1200px+) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    
    .hero-section {
        padding: 5rem 0;
    }
    
    .search-section .card-body {
        padding: 3rem;
    }
    
    .timeline-item {
        margin-left: 1rem;
    }
    
    .results-section {
        padding: 4rem 0;
    }
}

/* 中等屏幕设备 - 平板横屏 (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .hero-section {
        padding: 4rem 0;
    }
    
    .search-section .card-body {
        padding: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .stat-item {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
}

/* 平板设备 (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    /* 导航栏调整 */
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .navbar-nav {
        margin-top: 1rem;
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
        margin: 0.25rem 0;
    }
    
    /* Hero区域调整 */
    .hero-section {
        padding: 3rem 0;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .stat-item {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    /* 搜索区域调整 */
    .search-section {
        margin-top: -2rem;
    }
    
    .search-section .card-body {
        padding: 2rem;
    }
    
    .search-section .row.g-3 {
        --bs-gutter-x: 1rem;
    }
    
    /* 快速搜索按钮调整 */
    .quick-search {
        font-size: 0.875rem;
        padding: 0.5rem 0.75rem;
    }
    
    /* 结果区域调整 */
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .result-info {
        width: 100%;
    }
    
    .result-actions {
        width: 100%;
        display: flex;
        gap: 0.5rem;
    }
    
    .result-actions .btn {
        flex: 1;
    }
    
    /* 时间线调整 */
    .tracking-timeline {
        padding-left: 1.5rem;
    }
    
    .tracking-timeline::before {
        left: 0.75rem;
    }
    
    .timeline-item::before {
        left: -1.75rem;
    }
    
    .timeline-content {
        padding: 1.25rem;
    }
    
    .timeline-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* 手机设备 (576px - 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    /* 导航栏调整 */
    .navbar-brand {
        font-size: 1rem;
    }
    
    .navbar-brand img {
        height: 32px;
    }
    
    /* Hero区域调整 */
    .hero-section {
        padding: 2.5rem 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .stat-item {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
        width: 100%;
        justify-content: center;
    }
    
    /* 搜索区域调整 */
    .search-section {
        margin-top: -1.5rem;
        padding: 3rem 0;
    }
    
    .search-section .card-body {
        padding: 1.5rem;
    }
    
    .search-section h3 {
        font-size: 1.5rem;
    }
    
    /* 表单调整 */
    .form-control-lg {
        padding: 0.875rem 1rem;
        font-size: 1rem;
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    /* 搜索类型和输入框堆叠 */
    .search-section .col-md-4,
    .search-section .col-md-8 {
        width: 100%;
    }
    
    /* 快速搜索调整 */
    .quick-search {
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
        margin: 0.2rem;
    }
    
    /* 结果区域调整 */
    .results-section {
        padding: 2rem 0;
    }
    
    .results-header h3 {
        font-size: 1.5rem;
    }
    
    .result-info .badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.6rem;
        margin: 0.2rem;
        display: inline-block;
    }
    
    /* 时间线调整 */
    .tracking-timeline {
        padding-left: 1rem;
    }
    
    .tracking-timeline::before {
        left: 0.5rem;
    }
    
    .timeline-item {
        margin-bottom: 1.5rem;
    }
    
    .timeline-item::before {
        left: -1.25rem;
        width: 0.75rem;
        height: 0.75rem;
        top: 1rem;
    }
    
    .timeline-content {
        padding: 1rem;
    }
    
    .timeline-status {
        font-size: 1rem;
    }
    
    .timeline-description {
        font-size: 0.9rem;
    }
    
    .timeline-meta {
        font-size: 0.8rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
}

/* 小屏手机设备 (<576px) */
@media (max-width: 575px) {
    /* 全局调整 */
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* 导航栏调整 */
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .navbar-brand img {
        height: 28px;
    }
    
    .navbar-toggler {
        padding: 0.25rem 0.5rem;
        font-size: 0.875rem;
    }
    
    /* Hero区域调整 */
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-section h1 {
        font-size: 1.75rem;
        margin-bottom: 0.75rem;
    }
    
    .hero-section .lead {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .stat-item {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
        width: 100%;
        justify-content: center;
    }
    
    /* 搜索区域调整 */
    .search-section {
        margin-top: -1rem;
        padding: 2rem 0;
    }
    
    .search-section .card {
        margin: 0 0.5rem;
    }
    
    .search-section .card-body {
        padding: 1.25rem;
    }
    
    .search-section h3 {
        font-size: 1.25rem;
        margin-bottom: 1.5rem;
    }
    
    /* 表单调整 */
    .form-label {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }
    
    .form-control,
    .form-select {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .form-control-lg {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    /* 输入组调整 */
    .input-group .btn {
        white-space: nowrap;
    }
    
    /* 快速搜索调整 */
    .quick-search {
        font-size: 0.75rem;
        padding: 0.35rem 0.5rem;
        margin: 0.15rem;
    }
    
    /* 加载区域调整 */
    .loading-section {
        padding: 2rem 0;
    }
    
    .loading-section .spinner-border {
        width: 2rem;
        height: 2rem;
    }
    
    /* 结果区域调整 */
    .results-section {
        padding: 1.5rem 0;
    }
    
    .results-header {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
    
    .results-header h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .result-info {
        margin-bottom: 1rem;
    }
    
    .result-info .badge {
        font-size: 0.7rem;
        padding: 0.3rem 0.5rem;
        margin: 0.1rem;
        display: block;
        width: fit-content;
        margin-bottom: 0.25rem;
    }
    
    .result-actions .btn {
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem;
    }
    
    /* 时间线调整 */
    .tracking-timeline {
        padding-left: 0.75rem;
    }
    
    .tracking-timeline::before {
        left: 0.375rem;
        width: 1px;
    }
    
    .timeline-item {
        margin-bottom: 1rem;
    }
    
    .timeline-item::before {
        left: -1rem;
        width: 0.5rem;
        height: 0.5rem;
        top: 0.75rem;
    }
    
    .timeline-content {
        padding: 0.75rem;
    }
    
    .timeline-status {
        font-size: 0.9rem;
        margin-bottom: 0.25rem;
    }
    
    .timeline-description {
        font-size: 0.8rem;
        margin-bottom: 0.5rem;
    }
    
    .timeline-meta {
        font-size: 0.75rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.2rem;
    }
    
    /* 错误区域调整 */
    .error-section {
        padding: 1.5rem 0;
    }
    
    .error-section .alert {
        margin: 0 0.5rem;
    }
    
    .error-section h4 {
        font-size: 1.1rem;
    }
    
    /* 页脚调整 */
    .footer {
        padding: 2rem 0;
        text-align: center;
    }
    
    .footer .row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer .col-md-6 {
        text-align: center;
    }
    
    .footer h6 {
        font-size: 1rem;
    }
    
    .footer .small {
        font-size: 0.8rem;
    }
}

/* 超小屏设备优化 (<400px) */
@media (max-width: 399px) {
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    .hero-section h1 {
        font-size: 1.5rem;
    }
    
    .search-section .card {
        margin: 0 0.25rem;
    }
    
    .search-section .card-body {
        padding: 1rem;
    }
    
    .quick-search {
        font-size: 0.7rem;
        padding: 0.3rem 0.4rem;
    }
    
    .timeline-content {
        padding: 0.5rem;
    }
    
    .result-info .badge {
        font-size: 0.65rem;
        padding: 0.25rem 0.4rem;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hero-section,
    .search-section,
    .loading-section,
    .error-section,
    .footer {
        display: none !important;
    }
    
    .results-section {
        padding: 0 !important;
    }
    
    .tracking-timeline::before {
        background: #000 !important;
    }
    
    .timeline-item {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }
    
    .timeline-item::before {
        background: #000 !important;
        border-color: #fff !important;
    }
}