/* CSS Variables */
:root {
    --bg-dark: #0f170a;
    --card-dark: #1a2416;
    --border: #2a3a26;
    --primary: #10b981;
    --primary-hover: #059669;
    --text: #ffffff;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --warning: #fbbf24;
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    font-family: 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-secondary);
    background-color: var(--bg-dark);
    min-height: 100vh;
}

/* General Link Styles */
a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--primary);
    border-radius: 4px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.nav-links {
    display: flex;
    gap: 20px;
    margin-left: 40px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

.language-selector {
    display: flex;
    gap: 10px;
}

.language-selector button {
    background: var(--card-dark);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.language-selector button:hover {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.language-selector button.active {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.logo {
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo a {
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 28px;
    color: var(--primary);
}

.language-selector {
    display: flex;
    gap: 10px;
}

.lang-btn {
    background: var(--card-dark);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.lang-btn.active {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--card-dark) 100%);
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 44px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    line-height: 1.2;
}

.hero h1 i {
    color: var(--primary);
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--primary);
    color: var(--bg-dark);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: 0.2s;
    border: none;
    cursor: pointer;
}

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

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

.btn-secondary:hover {
    background: #3a4a36;
}

/* Main Content */
.main-content {
    padding: 40px 0;
}

/* Filter Section */
.filter-section {
    background: var(--card-dark);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 32px;
    border: 1px solid var(--border);
    transition: 0.2s;
}

.filter-section:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.filter-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-title i {
    color: var(--primary);
}

.filter-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.filter-group select,
.filter-group input {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--text);
    font-size: 14px;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.apply-filter-btn {
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    padding: 14px 32px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
    grid-column: 1 / -1;
    justify-self: center;
    margin-top: 10px;
}

.apply-filter-btn:hover {
    background: var(--primary-hover);
}

/* Sort Section */
.sort-section {
    background: var(--card-dark);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 32px;
    border: 1px solid var(--border);
    transition: 0.2s;
}

.sort-section:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.sort-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-title i {
    color: var(--primary);
}

.sort-controls {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.sort-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sort-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.sort-group select {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text);
    font-size: 14px;
    min-width: 150px;
}

.sort-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Card */
.card {
    background: var(--card-dark);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 32px;
    border: 1px solid var(--border);
    transition: 0.2s;
    position: relative;
}

.card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.update-time {
    font-size: 14px;
    color: var(--text-muted);
}

/* Table */
.table-container {
    overflow-x: auto;
    margin-bottom: 20px;
    width: 100%;
    padding: 0;
    min-width: 1000px;
    max-width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-dark);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    table-layout: fixed;
}

.table th {
    /* Width is auto to allow natural sizing */
}

.table th,
.table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    box-sizing: border-box;
}

.table th:last-child,
.table td:last-child {
    padding-right: 20px;
}

.table th {
    background: var(--border);
    color: var(--primary);
    font-weight: 600;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: 0.2s;
}

.table th.sortable:hover {
    background: var(--primary);
    color: var(--bg-dark);
}

.table th.sortable.asc::after {
    content: ' ↑';
    font-size: 12px;
}

.table th.sortable.desc::after {
    content: ' ↓';
    font-size: 12px;
}

.table td {
    color: var(--text-secondary);
    white-space: nowrap;
}

.table tr:hover {
    background: rgba(16, 185, 129, 0.1);
}

.table tr.min-price {
    background: rgba(16, 185, 129, 0.2);
    font-weight: 500;
}

.price-cell {
    font-weight: 600;
    color: var(--text);
}

.price-diff {
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
}

.rent-btn {
    background: var(--primary);
    color: var(--bg-dark);
    padding: 6px 12px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: 0.2s;
    display: inline-block;
    text-align: center;
    width: 100%;
}

.rent-btn:hover {
    background: var(--primary-hover);
}

.details-btn {
    background: var(--border);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    transition: 0.2s;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    justify-content: center;
}

.details-btn:hover {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.pagination-info {
    font-size: 14px;
    color: var(--text-muted);
}

.pagination-controls {
    display: flex;
    gap: 8px;
}

.page-btn {
    background: var(--bg-dark);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 14px;
    transition: 0.2s;
}

.page-btn:hover {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: var(--bg-dark);
    border-color: var(--primary);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-btn:disabled:hover {
    background: var(--bg-dark);
    color: var(--text-secondary);
    border-color: var(--border);
}

.page-size-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.page-size-selector select {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 8px;
    color: var(--text);
    font-size: 14px;
}

/* Loading */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 0;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Error Message */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
    color: var(--error);
    font-size: 14px;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 16px;
}

/* AI Card */
.ai-card {
    background: linear-gradient(135deg, var(--card-dark) 0%, rgba(16, 185, 129, 0.1) 100%);
    border: 1px solid var(--primary);
}

.query-box {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--text);
    position: relative;
}

.copy-btn {
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 8px 0;
}

.copy-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.tip {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 12px;
    padding: 8px 12px;
    background: rgba(156, 163, 175, 0.1);
    border-radius: 6px;
}

/* Footer */
footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: 40px 0;
    margin-top: 60px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: space-between;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-logo {
        flex: none;
        width: 100%;
    }
}

/* Footer Section Styles */
.footer-section {
    flex: 1;
    min-width: 200px;
}

/* 调整非logo部分的宽度 */
.footer-section:not(.footer-logo) {
    flex: 0 0 200px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
}

/* Footer Logo Section */
.footer-logo {
    flex: 1.5;
    min-width: 250px;
}

.footer-logo .logo {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-logo .logo a {
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo .logo i {
    font-size: 32px;
    color: var(--primary);
}

.footer-logo .slogan {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.footer-logo .footer-description {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 16px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--primary);
    text-decoration: none;
    transition: 0.2s;
}

.footer-section a:hover {
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    margin-top: 32px;
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--card-dark);
    border-radius: 12px;
    padding: 30px;
    max-width: 800px;
    max-height: 80%;
    overflow-y: auto;
    border: 1px solid var(--border);
    position: relative;
}

.modal-content h2 {
    color: var(--text);
    margin-bottom: 20px;
    font-size: 20px;
}

.modal-content h3 {
    color: var(--primary);
    margin-bottom: 10px;
}

.modal-content p {
    margin-bottom: 10px;
}

.modal-content p strong {
    color: var(--text-secondary);
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    border-radius: 6px;
    padding: 8px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--primary-hover);
    transform: rotate(90deg);
}

/* Desktop-only Design */
/* Removed responsive styles, only desktop display is supported */

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--bg-dark);
}

/* Focus */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Button Focus */
button:focus,
a:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Input Focus */
input:focus,
select:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Policy Content */
.policy-content {
    line-height: 1.8;
}

/* Policy Page Container */
.policy-container {
    margin-top: 40px;
    margin-bottom: 40px;
}

.contact-info {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 24px;
    background-color: var(--card-dark);
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: 0.2s;
}

.contact-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.contact-item i {
    font-size: 24px;
    color: var(--primary);
    margin-right: 20px;
    margin-top: 5px;
}

.contact-item h3 {
    margin: 0 0 5px 0;
    color: var(--text);
    font-size: 18px;
    font-weight: 600;
}

.contact-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 16px;
}

.contact-form {
    margin-top: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text);
    font-weight: 600;
    font-size: 16px;
}

.contact-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--card-dark);
    color: var(--text);
    font-size: 16px;
    transition: 0.2s;
}

.contact-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25);
}

.contact-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--card-dark);
    color: var(--text);
    font-size: 16px;
    resize: vertical;
    min-height: 120px;
    transition: 0.2s;
}

.contact-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25);
}

.policy-content h2 {
    color: var(--primary);
    margin-top: 30px;
    margin-bottom: 20px;
    font-size: 28px;
    font-weight: 600;
    line-height: 1.3;
}

.policy-content h2:first-child {
    margin-top: 0;
}

.policy-content p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.policy-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.policy-content li {
    margin-bottom: 10px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.policy-content strong {
    color: var(--text);
    font-weight: 600;
}

/* Form Status */
.form-status {
    margin: 20px 0;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    font-size: 16px;
    font-weight: 500;
}

.form-status.loading {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.form-status.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.form-status.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.form-status .loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}