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

.lang-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lang-modal.hidden {
    display: none;
}

.lang-modal-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    text-align: center;
    border: 1px solid var(--border-color);
    animation: slideUp 0.3s ease;
}

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

.lang-modal-content h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.lang-modal-content p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.lang-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.lang-item {
    padding: 20px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lang-item:hover {
    border-color: var(--accent-gold);
    transform: translateY(-2px);
}

.lang-name {
    text-align: center;
}

.lang-name .native {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

:root {
    --primary-bg: #0a0e17;
    --secondary-bg: #111827;
    --card-bg: #1a2332;
    --accent-gold: #d4af37;
    --accent-green: #00ff88;
    --accent-blue: #00d4ff;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --border-color: #2d3748;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.page-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    transform: rotate(90deg);
    z-index: -1;
}

.page-bg-ranking {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/网站背景图2.png');
    background-size: cover;
    background-position: center;
    transform: rotate(90deg);
    z-index: -1;
}

.ranking-page .ad-banner-section {
    background: rgba(10, 14, 23, 0.85);
}

.ranking-page .ad-squares-section {
    background: rgba(10, 14, 23, 0.85);
}

.ranking-page .featured-section {
    background: rgba(10, 14, 23, 0.85);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

nav {
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span:first-child {
    color: var(--accent-gold);
}

.logo span:last-child {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-gold);
}

.nav-links .lang-nav-item {
    position: relative;
    cursor: pointer;
}

.nav-links .lang-nav-item:hover > .nav-lang-dropdown {
    display: block;
}

.nav-lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    min-width: 160px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    z-index: 1001;
}

.nav-lang-dropdown.show {
    display: block;
}

.nav-lang-dropdown .lang-item {
    background: transparent;
    border: none;
    border-radius: 6px;
    padding: 10px 12px;
    justify-content: flex-start;
    gap: 10px;
}

.nav-lang-dropdown .lang-item:hover {
    background: rgba(212, 175, 55, 0.1);
}

.nav-lang-dropdown .lang-flag {
    font-size: 1.2rem;
}

.nav-lang-dropdown .lang-name {
    text-align: left;
}

.hero {
    padding: 100px 0;
    text-align: center;
    position: relative;
    background: rgba(10, 14, 23, 0.7);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 0, 0, 0.5);
}

.hero h1 span {
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.5);
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    padding: 15px 40px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold), #b8860b);
    color: var(--primary-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.ad-banner-section {
    padding: 30px 0;
    background: rgba(10, 14, 23, 0.9);
}

.ad-banner {
    max-width: 728px;
    height: 90px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.ad-banner:hover {
    border-color: var(--accent-gold);
}

.ad-label {
    position: absolute;
    top: 5px;
    right: 10px;
    font-size: 0.7rem;
    color: var(--text-secondary);
    background: rgba(212, 175, 55, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
}

.ad-placeholder {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.ad-icon {
    font-size: 1.5rem;
}

.ad-squares-section {
    padding: 40px 0;
    background: rgba(10, 14, 23, 0.9);
}

.ad-squares-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.ad-square {
    width: 300px;
    height: 250px;
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: border-color 0.3s;
}

.ad-square:hover {
    border-color: var(--accent-gold);
}

.ad-square .ad-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.ad-square .ad-label {
    top: 10px;
    right: 10px;
}

.stats-section {
    padding: 80px 0;
    background: rgba(10, 14, 23, 0.7);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-card .number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-card .number.gold {
    color: var(--accent-gold);
}

.stat-card .number.green {
    color: var(--accent-green);
}

.stat-card .number.blue {
    color: var(--accent-blue);
}

.stat-card .label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.philosophy-section {
    padding: 80px 0;
    background: rgba(17, 24, 39, 0.7);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
}

.section-title span {
    color: var(--accent-gold);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.philosophy-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, border-color 0.3s;
}

.philosophy-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
}

.philosophy-card .icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.philosophy-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.philosophy-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.featured-section {
    padding: 80px 0;
    background: rgba(10, 14, 23, 0.7);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.featured-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s;
}

.featured-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-green);
}

.agent-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.agent-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
}

.agent-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

.agent-card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.agent-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 15px;
}

.agent-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.featured-card .tag {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-green);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 20px;
}

.featured-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.featured-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.featured-card .arrow {
    color: var(--accent-green);
    font-size: 1.2rem;
    transition: margin-left 0.3s;
}

.featured-card:hover .arrow {
    margin-left: 10px;
}

footer {
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
    padding: 50px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.ranking-header {
    padding: 60px 0;
    background: rgba(17, 24, 39, 0.85);
}

.ranking-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.ranking-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.filter-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 25px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.filter-tab:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.filter-tab.active {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--primary-bg);
}

.ranking-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
}

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

.ranking-table th {
    background: var(--secondary-bg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ranking-table tr:last-child td {
    border-bottom: none;
}

.ranking-table tr:hover {
    background: rgba(212, 175, 55, 0.05);
}

.rank {
    font-weight: 700;
    font-size: 1.2rem;
    width: 60px;
}

.rank.gold { color: var(--accent-gold); }
.rank.silver { color: #c0c0c0; }
.rank.bronze { color: #cd7f32; }

.model-name {
    font-weight: 600;
    color: var(--text-primary);
}

.agent-badge {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-blue);
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
}

.revenue {
    font-weight: 700;
    color: var(--accent-green);
    font-size: 1.1rem;
}

.cost {
    font-weight: 600;
    color: #ff6b6b;
}

.profit {
    font-weight: 700;
    font-size: 1.1rem;
}

.profit.positive { color: var(--accent-green); }
.profit.negative { color: #ff6b6b; }

.rating {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    position: relative;
    font-size: 1.2rem;
    color: #2d3748;
}

.rating::before {
    content: "★★★★★";
    letter-spacing: -2px;
}

.rating .stars {
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
    color: var(--accent-gold);
}

.rating .stars::before {
    content: "★★★★★";
    letter-spacing: -2px;
}

.rating-value {
    display: inline-block;
    margin-left: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.score {
    font-weight: 700;
    color: var(--accent-gold);
    font-size: 1.2rem;
}

.matching-bar {
    height: 10px;
    background: var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}

.matching-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    border-radius: 5px;
    transition: width 0.5s;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-green));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 15px;
}

.user-info {
    display: flex;
    align-items: center;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.user-country {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.time-period {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.top-performer {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(0, 255, 136, 0.05));
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.about-section {
    padding: 80px 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--accent-gold);
}

.about-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.8;
}

.about-content ul {
    list-style: none;
    margin-bottom: 30px;
}

.about-content ul li {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.about-content ul li::before {
    content: '✓';
    color: var(--accent-green);
    margin-right: 15px;
    font-weight: bold;
}

@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ranking-table {
        font-size: 0.85rem;
    }
    
    .ranking-table th,
    .ranking-table td {
        padding: 12px 10px;
    }
    
    .ad-squares-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .ad-square {
        width: 100%;
        max-width: 300px;
    }
    
    .ad-banner {
        width: 100%;
        max-width: 728px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .filter-tabs {
        gap: 5px;
    }
    
    .filter-tab {
        padding: 8px 15px;
        font-size: 0.8rem;
    }
}