/* 全局样式重置与基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #1a202c;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    overflow-x: hidden;
}

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

/* 背景装饰 */
.bg-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.bg-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1), rgba(0, 242, 195, 0.1));
    animation: float 6s ease-in-out infinite;
}

.bg-circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.bg-circle-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: -5%;
    animation-delay: 2s;
}

.bg-circle-3 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Header */
header:not(.article-header) {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo > a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.logo > a:hover h1 {
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

header h1 {
    color: #2d3748;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    transition: all 0.3s ease;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

nav a:hover {
    color: #667eea;
}

nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    color: white;
}

.hero h2 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff 0%, #f0f4f8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #00f2c3;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.btn-hero {
    background: linear-gradient(135deg, #00f2c3, #00d9ff);
    color: #1a202c;
    padding: 1.2rem 2.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 242, 195, 0.3);
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 242, 195, 0.4);
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.hero-image {
    position: relative;
    transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(-10deg) rotateX(0deg);
}

.main-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    font-weight: 600;
    animation: floatCard 3s ease-in-out infinite;
}

.floating-card img {
    width: 40px;
    height: 30px;
    border-radius: 6px;
    object-fit: cover;
}

.floating-card-1 {
    top: 20%;
    right: -10%;
    animation-delay: 0s;
}

.floating-card-2 {
    bottom: 30%;
    left: -15%;
    animation-delay: 1s;
}

.floating-card-3 {
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.1rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto;
}

/* Tools Section */
.tools-section {
    padding: 6rem 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
}

.tool-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.tool-card.featured {
    border: 2px solid #667eea;
}

.tool-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.tool-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.tool-card:hover .tool-image img {
    transform: scale(1.1);
}

.tool-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.8), rgba(118, 75, 162, 0.8));
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 1rem;
}

.tool-card:hover .tool-overlay {
    opacity: 1;
}

.tool-badge {
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.tool-content {
    padding: 2rem;
}

.tool-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2d3748;
    font-weight: 600;
}

.tool-content p {
    color: #718096;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tool-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.feature {
    background: linear-gradient(135deg, #e6fffa, #b2f5ea);
    color: #2c7a7b;
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid #81e6d9;
}

.tool-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #f7fafc;
    border-radius: 10px;
}

.tool-type, .tool-status {
    font-size: 0.9rem;
    font-weight: 500;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.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 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.1);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(255, 255, 255, 0.2);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.external-link {
    font-size: 0.8rem;
}

/* Coming Soon */
.coming-soon {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: relative;
}

.coming-soon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #00f2c3);
}

.coming-soon-content {
    padding: 3rem;
    text-align: center;
}

.coming-soon-icon {
    margin-bottom: 1.5rem;
}

.coming-soon-icon img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.coming-soon h3 {
    color: #2d3748;
    margin-bottom: 1rem;
    font-size: 1.6rem;
    font-weight: 600;
}

.coming-soon p {
    color: #718096;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.coming-tools {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.coming-tool {
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #4a5568;
    border: 1px solid #e2e8f0;
}

/* Features Showcase */
.features-showcase {
    padding: 6rem 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border-radius: 20px;
    background: linear-gradient(135deg, #f7fafc 0%, #ffffff 100%);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-5px);
    border-color: #667eea;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.feature-icon {

}

.feature-icon img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2d3748;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: #718096;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f7fafc 0%, #ffffff 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    color: #2d3748;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.about-description {
    font-size: 1.2rem;
    color: #718096;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.highlight-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.highlight h4 {
    color: #2d3748;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.highlight p {
    color: #718096;
    font-size: 0.95rem;
    line-height: 1.5;
}

.about-visual {
    position: relative;
}

.about-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Stats Section */
.stats-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
}

.stat-icon {
    margin-bottom: 1rem;
}

.stat-icon img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, 0.1);
}

.stat-item .stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: #00f2c3;
    margin-bottom: 0.5rem;
}

.stat-item .stat-label {
    font-size: 1rem;
    color: #a0aec0;
    font-weight: 500;
}

/* Footer */
footer {
    background: #1a202c;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00f2c3, #00d9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: #a0aec0;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.link-group h4 {
    margin-bottom: 1rem;
    color: #e2e8f0;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.link-group ul {
    list-style: none;
}

.link-group li {
    margin-bottom: 0.5rem;
}

.link-group a {
    color: #a0aec0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.link-group a:hover {
    color: #00f2c3;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #2d3748;
}

.footer-bottom p {
    color: #718096;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-image {
        transform: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
    }
    
    .hero {
        padding: 4rem 0;
    }
    
    .hero h2 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .tools-section,
    .features-showcase,
    .about-section {
        padding: 4rem 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}