* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --border-color: #e2e8f0;
    --text-color: #374151;
    --text-muted: #6b7280;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    min-height: 80px;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 100%;
}

.header h1 {
    font-size: 4.0rem;
    text-align: center;
    margin-bottom: 0.5rem;
    width: 100%;
    position: relative;
    z-index: 1;
}

.nav {
    background: white;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-list {
    display: flex;
    list-style: none;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 0.8rem;
    align-items: center;
    overflow-x: auto;
    padding: 0 1rem;
    min-height: 60px;
}

/* 桌面端导航项自适应宽度 */
.nav-list li {
    flex: 0 0 auto;
    min-width: fit-content;
}

/* 桌面端特殊优化 - 确保单排显示并占满整个宽度 */
@media (min-width: 769px) {
    .nav {
        padding: 1rem 0;
        min-height: 80px; /* 确保有足够高度 */
    }
    
    .nav .container {
        max-width: 100% !important;
        padding: 0 0.5rem !important;
        margin: 0 !important;
        width: 100% !important;
    }
    
    .nav-list {
        flex-wrap: nowrap !important;
        justify-content: space-between !important;
        gap: clamp(0.2rem, 0.8vw, 0.6rem);
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
        align-items: stretch; /* 让所有项目高度一致 */
    }
    
    .nav-list li {
        flex: 1 1 0;
        max-width: none;
        display: flex;
        justify-content: center;
        min-width: 0;
        align-items: center; /* 垂直居中 */
    }
    
    .nav-link {
        padding: 0.6rem clamp(0.2rem, 0.8vw, 0.8rem);
        font-size: clamp(0.9rem, 1.2vw, 1.2rem);
        width: 100%;
        text-align: center;
        white-space: normal; /* 允许换行 */
        overflow: visible;
        text-overflow: clip;
        line-height: 1.1;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 48px; /* 最小高度确保点击区域 */
        word-break: break-word; /* 长单词可以断行 */
        hyphens: auto; /* 自动连字符 */
    }
    
    /* 针对长文本的特殊处理 */
    .nav-link {
        max-height: 60px;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2; /* 最多显示2行 */
        -webkit-box-orient: vertical;
    }
    
    /* 隐藏桌面端的滚动条 */
    .nav-list::-webkit-scrollbar {
        display: none;
    }
    
    .nav-list {
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
}

/* 超宽屏幕优化 */
@media (min-width: 1400px) {
    .nav-list {
        gap: clamp(0.5rem, 1.2vw, 1rem) !important;
    }
    
    .nav-link {
        padding: 0.8rem clamp(0.5rem, 1.2vw, 1.2rem) !important;
        font-size: clamp(1.1rem, 1.4vw, 1.3rem) !important;
    }
}

/* 中等屏幕优化 */
@media (min-width: 769px) and (max-width: 1200px) {
    .nav-link {
        font-size: clamp(0.8rem, 1.1vw, 1.1rem) !important;
        padding: 0.5rem clamp(0.1rem, 0.6vw, 0.6rem) !important;
    }
}

.nav-heading {
    margin: 0;
    padding: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 1.4rem;
    white-space: normal; /* 移动端允许换行 */
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
    text-align: center;
    min-width: fit-content;
    flex-shrink: 0;
    word-break: break-word;
    hyphens: auto;
    min-height: 48px;
}

/* 移动端导航优化 */
@media (max-width: 768px) {
    .nav {
        padding: 0.8rem 0;
        min-height: 70px;
    }
    
    .nav-list {
        gap: 0.4rem;
        padding: 0 0.5rem;
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-list li {
        flex: 0 0 auto;
        min-width: fit-content;
    }
    
    .nav-link {
        padding: 0.6rem 0.8rem;
        font-size: 1.1rem;
        white-space: normal;
        max-width: 120px;
        min-width: 80px;
        line-height: 1.1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        max-height: 50px;
    }
    
    /* 移动端滚动条样式 */
    .nav-list::-webkit-scrollbar {
        height: 4px;
    }
    
    .nav-list::-webkit-scrollbar-track {
        background: #f1f1f1;
        border-radius: 2px;
    }
    
    .nav-list::-webkit-scrollbar-thumb {
        background: var(--primary-color);
        border-radius: 2px;
    }
}

.nav-link:hover, .nav-link.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.main {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-block {
    width: 100%;
}

.method-selector {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.method-option {
    flex: 1;
    min-width: 150px;
}

.method-option input[type="radio"] {
    display: none;
}

.method-label {
    display: block;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.method-option input[type="radio"]:checked + .method-label {
    border-color: var(--primary-color);
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
}

.results {
    margin-top: 2rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.result-card {
    background: white;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    overflow: hidden;
}

.result-header {
    padding: 1rem;
    font-weight: 600;
    text-align: center;
}

.result-header.live {
    background-color: var(--success-color);
    color: white;
}

.result-header.banned {
    background-color: var(--danger-color);
    color: white;
}

.result-header.unknown {
    background-color: var(--warning-color);
    color: white;
}

.result-content {
    padding: 1rem;
    max-height: 300px;
    overflow-y: auto;
}

.result-item {
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    background-color: var(--light-color);
    border-radius: 4px;
    font-family: monospace;
    word-break: break-all;
}

.copy-btn {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.tfa-display {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    border-radius: 12px;
    margin: 2rem 0;
}

.tfa-code {
    font-size: 3rem;
    font-weight: bold;
    letter-spacing: 0.5rem;
    margin: 1rem 0;
    font-family: monospace;
}

.tfa-timer {
    font-size: 1.2rem;
    margin-top: 1rem;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.footer {
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    .nav {
        position: relative !important;
        overflow: hidden !important;
    }
    
    .nav .container .nav-list {
        display: flex !important;
        flex-wrap: nowrap !important;
        gap: 0.5rem !important;
        padding: 0.5rem 1rem !important;
        margin: 0 !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        scroll-behavior: smooth !important;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
        width: 100% !important;
        justify-content: flex-start !important;
        grid-template-columns: none !important;
        list-style: none !important;
    }
    
    .nav .container .nav-list::-webkit-scrollbar {
        display: none !important;
    }
    
    .nav .container .nav-list li {
        flex: 0 0 auto !important;
        min-width: 120px !important;
        display: block !important;
        margin: 0 !important;
    }

    .nav .container .nav-list li .nav-link {
        padding: 0.6rem 0.8rem !important;
        font-size: 0.8rem !important;
        text-align: center !important;
        border-radius: 8px !important;
        transition: all 0.3s ease !important;
        white-space: nowrap !important;
        display: block !important;
        width: 100% !important;
        text-decoration: none !important;
        color: var(--text-color) !important;
        font-weight: 600 !important;
    }
    
    .nav .container .nav-list li .nav-link:hover,
    .nav .container .nav-list li .nav-link.active {
        background-color: var(--primary-color) !important;
        color: white !important;
        transform: translateY(-2px) !important;
    }
    
    /* 滑动提示按钮 */
    .nav-scroll-hint {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: var(--primary-color);
        font-size: 28px;
        font-weight: bold;
        cursor: pointer;
        z-index: 10;
        animation: slideHint 2s infinite;
        transition: all 0.3s ease;
        text-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
        padding: 5px;
    }
    
    .nav-scroll-hint:hover {
        color: var(--secondary-color);
        transform: translateY(-50%) scale(1.2);
        text-shadow: 0 0 15px rgba(59, 130, 246, 0.8);
    }
    
    .nav-scroll-hint.hidden {
        opacity: 0;
        pointer-events: none;
    }
    
    @keyframes slideHint {
        0%, 100% {
            opacity: 0.7;
            transform: translateY(-50%) translateX(0);
        }
        50% {
            opacity: 1;
            transform: translateY(-50%) translateX(-5px);
        }
    }

    .header {
        min-height: 100px;
        padding: 1.5rem 0;
    }

    .header h1 {
        font-size: 1.8rem;
        text-align: center;
        width: 100%;
        margin: 0;
    }

    .header .language-selector {
        position: absolute !important;
        bottom: -1.5rem !important;
        right: 0.2rem !important;
        top: auto !important;
        transform: none !important;
        z-index: 1000 !important;
        margin: 0 !important;
    }

    .header .language-selector select {
        padding: 0.3rem 0.6rem !important;
        font-size: 0.8rem !important;
        border-width: 1px !important;
    }

    .card {
        padding: 1.5rem;
        margin: 0 0.5rem 1rem;
    }

    .method-selector {
        flex-direction: column;
    }

    .method-option {
        min-width: auto;
    }

    .results-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .tfa-code {
        font-size: 2rem;
        letter-spacing: 0.3rem;
    }

    .container {
        padding: 0 0.5rem;
    }
}

@media (max-width: 480px) {
    .nav-list {
        gap: 0.4rem;
        padding: 0.4rem 0.8rem;
        width: 100%;
    }
    
    .nav-list li {
        min-width: 100px;
    }

    .nav-link {
        padding: 0.5rem 0.6rem;
        font-size: 0.75rem;
    }
    
    .nav-scroll-hint {
        width: 35px;
        height: 35px;
        font-size: 16px;
        right: 8px;
    }

    .header {
        min-height: 90px;
        padding: 1.2rem 0;
    }

    .header h1 {
        font-size: 1.5rem;
        text-align: center;
        width: 100%;
        margin: 0;
    }
    
    .header .language-selector {
        position: absolute !important;
        bottom: -1rem !important;
        right: 0.1rem !important;
        top: auto !important;
        transform: none !important;
        z-index: 1000 !important;
        margin: 0 !important;
    }

    .header .language-selector select {
        padding: 0.25rem 0.5rem !important;
        font-size: 0.75rem !important;
        border-width: 1px !important;
    }
    
    .card {
        margin: 0 0.25rem 1rem;
        padding: 1rem;
    }
    
    .tfa-code {
        font-size: 1.8rem;
        letter-spacing: 0.2rem;
    }
}

/* 页面描述样式 */
.page-description {
    background: #f8fafc;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.page-description p {
    color: var(--text-muted);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

/* 语言选择器样式 */
.language-selector {
    position: relative;
    display: inline-block;
    margin-left: auto;
}

.language-selector select {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: pointer;
    appearance: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.language-selector select:focus {
    outline: none;
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--primary-color);
}

.language-selector select:hover {
    background: rgba(59, 130, 246, 0.05);
}

.language-selector select option {
    background: white;
    color: var(--text-color);
}

/* 头部语言选择器 - 桌面端 */
.header .language-selector {
    position: absolute;
    bottom: 0.5rem;
    right: 1rem;
    z-index: 2;
}

.header .language-selector select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.header .language-selector select option {
    background: #f0f1f1;
    color: rgb(74, 34, 253);
}

.header .language-selector select:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.header .language-selector select:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* 导航栏语言选择器 */
.nav .language-selector {
    margin-left: auto;
}

/* 广告位样式 */
.ad-container {
    margin: 2rem 0;
    text-align: center;
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    padding: 2rem;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.ad-container img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.ad-container img:hover {
    transform: scale(1.02);
}

.ad-container h3 {
    color: #6c757d;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.ad-container p {
    color: #adb5bd;
    font-size: 0.9rem;
    margin: 0;
}

.ad-container.banner {
    min-height: 90px;
    padding: 1rem;
}

.ad-container.sidebar {
    min-height: 300px;
    margin: 1rem 0;
}

.ad-container.footer {
    min-height: 120px;
    margin-top: 3rem;
    background: #e9ecef;
    border-color: #ced4da;
}

@media (max-width: 768px) {
    .ad-container {
        margin: 1rem 0;
        padding: 1.5rem;
        min-height: 200px;
    }
    
    .ad-container.banner {
        min-height: 80px;
        padding: 0.8rem;
    }
    
    .ad-container.sidebar {
        min-height: 250px;
    }
    
    .ad-container.footer {
        min-height: 100px;
        margin-top: 2rem;
    }
}

/* 邮箱域名查询专用样式 */
.quick-buttons {
    margin-top: 1rem;
    text-align: center;
}

.quick-buttons span {
    color: var(--text-muted);
    margin-right: 1rem;
    font-size: 0.9rem;
}

.quick-btn {
    background: var(--light-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.quick-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.provider-card {
    background: white;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.provider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.provider-header h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0;
}

.provider-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.provider-company {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.security-rating {
    color: var(--warning-color);
    font-size: 1.1rem;
}

.config-section {
    margin-bottom: 1.5rem;
}

.config-section h4 {
    color: var(--dark-color);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.config-item {
    background: var(--light-color);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 0.375rem;
    border-left: 3px solid var(--primary-color);
}

.security-section {
    margin-bottom: 1.5rem;
}

.security-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin-bottom: 0.5rem;
}

.security-item.supported {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.security-item.not-supported {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.security-icon {
    font-size: 1.2rem;
}

.two-factor-methods {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 0.375rem;
}

.two-factor-methods ul {
    margin: 0.5rem 0 0 1rem;
}

.two-factor-methods li {
    margin-bottom: 0.25rem;
}

.recommendations-section {
    margin-bottom: 1.5rem;
}

.recommendation-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 0.75rem;
}

.recommendation-item.high {
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--danger-color);
}

.recommendation-item.medium {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid var(--warning-color);
}

.rec-icon {
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.rec-content strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--dark-color);
}

.tips-section ul {
    margin-left: 1rem;
}

.tips-section li {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.actions-section {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.setup-guide-btn, .copy-config-btn {
    flex: 1;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    text-decoration: none;
    text-align: center;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.setup-guide-btn {
    background: var(--primary-color);
    color: white;
}

.setup-guide-btn:hover {
    background: var(--secondary-color);
}

.copy-config-btn {
    background: var(--light-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.copy-config-btn:hover {
    background: var(--border-color);
}

.no-result-card, .error-card {
    background: white;
    border-radius: 0.75rem;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.no-result-icon, .error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.no-result-card h3, .error-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.suggestion {
    color: var(--text-muted);
    font-style: italic;
    margin-top: 1rem;
}

.providers-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.providers-section h2 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: 2rem;
}

.provider-category {
    margin-bottom: 2rem;
}

.provider-category h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.provider-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.provider-item {
    background: white;
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.provider-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.1);
}

.provider-name {
    font-weight: 500;
    color: var(--text-color);
}

.provider-2fa.supported {
    color: var(--success-color);
}

.provider-2fa.not-supported {
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .provider-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .actions-section {
        flex-direction: column;
    }
    
    .provider-list {
        grid-template-columns: 1fr;
    }
    
    .quick-buttons {
        text-align: left;
    }
    
    .quick-buttons span {
        display: block;
        margin-bottom: 0.5rem;
        margin-right: 0;
    }
}