/* ================================================
   全球航空公司查询工具专用样式
   ================================================ */

/* 导航下拉菜单样式 */
.nav-tab-dropdown {
    position: relative;
    display: inline-block;
}

.nav-tab-dropdown .nav-tab {
    position: relative;
}

.dropdown-arrow {
    font-size: 0.75rem;
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.nav-tab-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0.5rem 0;
    backdrop-filter: blur(10px);
}

.nav-tab-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: var(--radius-md);
    margin-bottom: 0.25rem;
    font-weight: 500;
    font-size: 0.8rem;
    position: relative;
    overflow: hidden;
}

.nav-dropdown-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-green-alpha), transparent);
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: -1;
}

.nav-dropdown-item:hover {
    color: var(--primary-green);
    text-decoration: none;
    transform: translateX(4px);
}

.nav-dropdown-item:hover::before {
    opacity: 1;
}

.nav-dropdown-item.active {
    background: var(--primary-green);
    color: white;
    font-weight: 600;
}

.nav-dropdown-item.active::before {
    opacity: 0;
}

.nav-dropdown-item i {
    margin-right: 0.75rem;
    width: 16px;
    text-align: center;
    font-size: 0.9rem;
}

.nav-dropdown-item:last-child {
    margin-bottom: 0;
}

/* 搜索区域 */
.search-section {
    margin-bottom: 2rem;
}

.search-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.search-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    color: white;
}

.search-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.search-subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0;
}

/* 搜索表单 */
.search-form {
    padding: 2rem;
}

.form-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    flex: 1;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.form-label i {
    color: var(--primary-green);
    font-size: 1rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(74, 156, 1, 0.1);
    background: var(--bg-primary);
}

/* 修复浏览器自动填充样式 */
.form-input:-webkit-autofill,
.form-input:-webkit-autofill:hover,
.form-input:-webkit-autofill:focus,
.form-input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px var(--bg-primary) inset !important;
    -webkit-text-fill-color: var(--text-primary) !important;
    background: var(--bg-primary) !important;
    border-color: var(--primary-green) !important;
}

/* 修复Firefox自动填充样式 */
.form-input:-moz-autofill {
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

.form-input::placeholder {
    color: var(--text-muted);
}

.input-hint {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 搜索按钮 */
.search-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-direction: row-reverse; /* PC端：开始查询按钮在右侧，重置按钮在左侧 */
}

.search-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    overflow: hidden;
    min-width: 140px;
    justify-content: center;
}

.search-btn.primary {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.search-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.search-btn.primary:disabled {
    background: var(--gray-300);
    color: var(--gray-500);
    cursor: not-allowed;
    transform: none;
    box-shadow: var(--shadow-sm);
}

.search-btn.secondary {
    background: linear-gradient(135deg, rgba(74, 156, 1, 0.08), rgba(74, 156, 1, 0.05));
    color: var(--primary-green-dark);
    border: 1px solid rgba(74, 156, 1, 0.2);
    box-shadow: 0 2px 8px rgba(74, 156, 1, 0.1);
}

.search-btn.secondary:hover {
    background: linear-gradient(135deg, rgba(74, 156, 1, 0.15), rgba(74, 156, 1, 0.1));
    color: var(--primary-green);
    border-color: rgba(74, 156, 1, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 156, 1, 0.15);
}

/* 按钮波纹效果 */
.btn-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.search-btn:active .btn-ripple {
    width: 300px;
    height: 300px;
}

/* 航空公司说明 */
.airlines-description {
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, rgba(74, 156, 1, 0.03) 0%, rgba(74, 156, 1, 0.01) 100%);
    border-bottom: 1px solid var(--border-light);
    border-radius: 20px;
    margin-top: 40px;
}

.airlines-description p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    text-align: justify;
}

.airlines-description strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 查询结果区域 */
.results-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    margin-bottom:2rem;
}

.results-header {
    padding: 1.5rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.results-stats {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 航空公司详细结果 */
.airline-detail-result {
    padding: 2rem;
}

.airline-detail-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
}

/* 航空公司详情页面头部操作区域 */
.airline-header-actions {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: nowrap; /* 确保不换行 */
    z-index: 10; /* 确保在其他元素之上 */
    min-height: 36px; /* 确保最小高度 */
}

/* 统一按钮高度和样式 */
.airline-header-actions .tashuo-btn,
.airline-header-actions .airline-status {
    height: 36px; /* 统一高度 */
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    display: -webkit-flex; /* Safari兼容性 */
    align-items: center;
    -webkit-align-items: center; /* Safari兼容性 */
    justify-content: center;
    -webkit-justify-content: center; /* Safari兼容性 */
    margin: 0;
    white-space: nowrap; /* 防止文字换行 */
    box-sizing: border-box; /* 确保padding计算在高度内 */
    -webkit-box-sizing: border-box; /* Safari兼容性 */
    vertical-align: middle; /* 确保垂直对齐 */
    line-height: 1; /* 统一行高 */
}

/* 他们说按钮特定样式 */
.airline-header-actions .tashuo-btn {
    gap: 0.375rem;
    border: 1px solid var(--border-medium);
    background: linear-gradient(135deg, rgba(74, 156, 1, 0.1), rgba(74, 156, 1, 0.05));
    color: var(--primary-green);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    order: 1; /* 确保在左侧 */
}

.airline-header-actions .tashuo-btn:hover {
    border-color: var(--primary-green);
    background: var(--primary-green-alpha);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 156, 1, 0.15);
}

.airline-header-actions .tashuo-btn i {
    color: var(--primary-green);
    font-size: 0.9rem;
}

/* 航空公司状态按钮特定样式 */
.airline-header-actions .airline-status {
    font-weight: 600;
    order: 2; /* 确保在右侧 */
}

.airline-status.active {
    background: rgba(34, 197, 94, 0.1);
    color: #059669;
}

.airline-status.supported {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.airline-status.optimizing {
    background: rgba(168, 85, 247, 0.1);
    color: #7c3aed;
}

.airline-status.developing {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.airline-status.maintenance {
    background: rgba(251, 146, 60, 0.1);
    color: #ea580c;
}

.airline-status.unsupported {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
}

.airline-status.inactive {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.airline-detail-actions {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    text-align: center;
}

.back-to-grid-btn {
    background: var(--primary-green);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.back-to-grid-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.back-to-grid-btn:hover::before {
    left: 100%;
}

.back-to-grid-btn:hover {
    background: var(--primary-green-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.airline-detail-header {
    margin-bottom: 2rem;
    padding-right: 8rem; 
    padding-top: 1rem;
}

.airline-detail-name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: baseline;
    gap: 1rem;
    flex-wrap: wrap;
}

.airline-detail-english {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-style: italic;
    font-weight: 400;
}

.airline-detail-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.airline-info-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.airline-info-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.airline-info-item.airline-info-full-width {
    grid-column: 1 / -1;
}

.airline-info-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.airline-info-value {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 500;
    word-break: break-all;
}

.airline-info-link {
    color: var(--primary-green);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    position: relative;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.airline-info-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-green-alpha), transparent);
    opacity: 0;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    z-index: -1;
}

.airline-info-link:hover::before {
    opacity: 1;
}

.airline-info-link:hover {
    color: var(--primary-green-dark);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.2);
}

/* 航空公司卡片网格 */
.airlines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
}

.airline-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    position: relative;
    height: auto;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    cursor: pointer;
}

.airline-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-green-light);
}

.airline-card-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.airline-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.airline-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.3;
}

.airline-name-link {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

.airline-name-link:hover {
    color: var(--primary-green);
    text-decoration: none;
}

.airline-codes {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.airline-code-item {
    display: flex;
    align-items: center;
    font-size: 0.85rem;
}

.airline-code-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: 'Courier New', monospace;
    background: var(--primary-green-alpha);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--primary-green-light);
    min-width: 35px;
    text-align: center;
    font-size: 0.8rem;
}

.airline-code-2 {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: #1d4ed8;
}

.airline-code-3 {
    background: var(--primary-green-alpha);
    border-color: var(--primary-green-light);
    color: var(--primary-green-dark);
}

/* 分页样式 */
.pagination {
    padding: 1.5rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-light);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.pagination-btn:hover {
    background: var(--primary-green-alpha);
    color: var(--primary-green);
    border-color: var(--primary-green);
    text-decoration: none;
}

.pagination-btn.active {
    background: var(--primary-green);
    color: white;
    border-color: var(--primary-green);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 1rem;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: 1.5rem;
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.empty-description {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.empty-action {
    padding: 0.75rem 2rem;
    background: var(--primary-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.empty-action:hover {
    background: var(--primary-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 现代化动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.airline-card {
    animation: fadeInUp 0.4s ease forwards;
    opacity: 0;
}

.airline-card:nth-child(1) { animation-delay: 0.1s; }
.airline-card:nth-child(2) { animation-delay: 0.15s; }
.airline-card:nth-child(3) { animation-delay: 0.2s; }
.airline-card:nth-child(4) { animation-delay: 0.25s; }
.airline-card:nth-child(5) { animation-delay: 0.3s; }
.airline-card:nth-child(6) { animation-delay: 0.35s; }

.airline-detail-result {
    animation: slideInRight 0.5s ease forwards;
}

.search-card {
    animation: fadeInUp 0.5s ease forwards;
}

/* 卡片悬停效果增强 */
.airline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-green-alpha), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: var(--radius-lg);
    pointer-events: none;
}

.airline-card:hover::before {
    opacity: 1;
}

/* 代码标签闪烁效果 */
.airline-code-value {
    position: relative;
    overflow: hidden;
}

.airline-code-value::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.airline-card:hover .airline-code-value::after {
    left: 100%;
}

/* 超小屏幕设备适配 */
@media (max-width: 480px) {
    .airline-header-actions {
        display: flex !important;
        flex-direction: row !important; /* 强制保持横向排列 */
        flex-wrap: nowrap !important;
        justify-content: space-between !important; /* 两端对齐 */
        align-items: center !important;
        gap: 0.25rem !important;
        width: 100% !important;
        min-height: 36px !important; /* 确保足够高度 */
    }
    
    .airline-header-actions .tashuo-btn,
    .airline-header-actions .airline-status {
        height: 28px !important; /* 超小屏幕更小的高度 */
        font-size: 0.75rem !important;
        padding: 0.25rem 0.5rem !important;
        flex: 0 0 auto !important; /* 防止压缩 */
        white-space: nowrap !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    /* 超小屏幕按钮定位 */
    .airline-header-actions .tashuo-btn {
        order: 1 !important;
        align-self: flex-start !important; /* 左侧对齐 */
    }
    
    .airline-header-actions .airline-status {
        order: 2 !important;
        align-self: flex-end !important; /* 右侧对齐 */
        position: relative !important;
    }
    
    
    .airline-header-actions .tashuo-btn i {
        font-size: 0.75rem !important;
        margin: 0 !important;
    }
}

/* Internet Explorer 兼容性 */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
    .airline-header-actions {
        display: -ms-flexbox;
        -ms-flex-align: center;
        -ms-flex-pack: end;
    }
    
    .airline-header-actions .tashuo-btn,
    .airline-header-actions .airline-status {
        display: -ms-flexbox;
        -ms-flex-align: center;
        -ms-flex-pack: center;
    }
}

/* 平板设备适配 */
@media (max-width: 1024px) and (min-width: 769px) {
    .airline-header-actions {
        gap: 0.6rem; /* 平板设备中等间距 */
    }
    
    .airline-header-actions .tashuo-btn,
    .airline-header-actions .airline-status {
        height: 34px; /* 平板设备中等高度 */
        font-size: 0.85rem;
        padding: 0.4rem 0.9rem;
    }
    
    .airline-header-actions .tashuo-btn i {
        font-size: 0.85rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 航空公司详情页面头部操作区域 - 移动端 */
    .airline-header-actions {
        position: static !important;
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        justify-content: space-between !important; /* 两端对齐 */
        align-items: center !important;
        margin-bottom: 1rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--border-light);
        gap: 0.5rem; /* 最小间距防止重叠 */
        width: 100%;
        min-height: 40px; /* 确保足够的高度 */
        box-sizing: border-box;
    }
    
    /* 移动端统一按钮样式 */
    .airline-header-actions .tashuo-btn,
    .airline-header-actions .airline-status {
        height: 32px !important; /* 移动端稍小的高度 */
        font-size: 0.8rem !important;
        padding: 0.375rem 0.75rem !important;
        flex: 0 0 auto !important; /* 防止压缩 */
        white-space: nowrap !important; /* 防止文字换行 */
        margin: 0 !important;
        box-sizing: border-box !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    /* 他们说按钮 - 左侧 */
    .airline-header-actions .tashuo-btn {
        order: 1 !important; /* 确保在左侧 */
        align-self: flex-start !important;
    }
    
    /* 状态按钮 - 右侧 */
    .airline-header-actions .airline-status {
        order: 2 !important; /* 确保在右侧 */
        align-self: flex-end !important;
        position: relative !important;
    }
    
    .airline-header-actions .tashuo-btn i {
        font-size: 0.8rem !important;
    }
    
    /* 针对一些移动浏览器的额外修复 */
    .airline-header-actions::before,
    .airline-header-actions::after {
        content: "";
        display: none !important;
    }
    
    /* 确保容器不会被其他元素影响 */
    .airline-detail-card .airline-header-actions {
        position: static !important;
        top: auto !important;
        right: auto !important;
        left: auto !important;
        transform: none !important;
    }
    
    .search-header {
        padding: 1.5rem 1rem 1rem;
    }
    
    .airlines-description {
        padding: 1rem 1.5rem;
    }
    
    .airlines-description p {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .search-title {
        font-size: 1.5rem;
    }
    
    .search-form {
        padding: 1.5rem;
    }
    
    .form-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-actions {
        flex-direction: column; /* 移动端：垂直布局，开始查询按钮在上方，重置按钮在下方 */
        align-items: center;
    }
    
    .search-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .results-header {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    .airlines-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
        gap: 1rem;
    }
    
    .airline-card {
        height: auto;
        min-height: 100px;
    }
    
    .airline-card-content {
        flex-direction: row;
        align-items: center;
        gap: 0.5rem;
        justify-content: space-between;
    }
    
    .airline-codes {
        flex-shrink: 0;
        gap: 0.25rem;
    }
    
    .airline-name {
        font-size: 0.85rem;
        line-height: 1.2;
        flex: 1;
        min-width: 0;
    }
    
    .airline-detail-info {
        gap: 1rem;
    }
    
    .airline-info-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .airline-detail-name {
        font-size: 1.5rem;
    }
    
    .airline-detail-header {
        padding-right: 2rem;
    }
    
    .pagination {
        padding: 1rem;
        flex-wrap: wrap;
        gap: 0.25rem;
    }
    
    .pagination-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    .nav-dropdown-menu {
        position: fixed;
        left: 1rem;
        right: 1rem;
        top: auto;
        width: auto;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .search-header {
        padding: 1.5rem 1rem 1rem;
    }
    
    .search-title {
        font-size: 1.5rem;
    }
    
    .airline-card {
        padding: 0.75rem;
        min-height: 60px;
    }
    
    .airline-card-header {
        margin-bottom: 0.75rem;
    }
    
    .airline-codes {
        gap: 0.2rem;
    }
    
    .airline-code-item {
        font-size: 0.8rem;
    }
    
    .airline-name {
        font-size: 1rem;
    }
    
    .airline-detail-result {
        padding: 1rem;
    }
    
    .airline-detail-card {
        padding: 1.5rem;
    }
    
    .airline-status {
        position: absolute;
        margin-bottom: 0;
    }
    
    .empty-state {
        padding: 3rem 1rem;
    }
    
    .empty-icon {
        font-size: 3rem;
    }
    
    .empty-title {
        font-size: 1.25rem;
    }
}