/* ========================================
   湖城互联 - 首页专属样式
   ======================================== */

/* Hero Banner */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(240,240,240,0.85) 100%);
    z-index: -1;
}

.hero-ellipses {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.hero-ellipse {
    position: absolute;
    border-radius: 50%;
    background: var(--glass-white);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: var(--shadow-soft);
}

.hero-ellipse:nth-child(1) {
    width: 500px;
    height: 400px;
    top: 10%;
    left: -150px;
    transform: rotate(-20deg);
    animation: float 8s ease-in-out infinite;
}

.hero-ellipse:nth-child(2) {
    width: 400px;
    height: 350px;
    bottom: 15%;
    right: -100px;
    transform: rotate(15deg);
    animation: float 10s ease-in-out infinite reverse;
}

.hero-ellipse:nth-child(3) {
    width: 300px;
    height: 280px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-10deg);
    animation: float 12s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(-20deg);
    }
    50% {
        transform: translateY(-30px) rotate(-15deg);
    }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 3rem;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--accent-blue);
    color: #fff;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 2rem;
    animation: fadeInDown 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--ink-black);
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.9s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    position: relative;
    z-index: 1;
}

.service-card {
    background: var(--glass-white);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-color);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--accent-blue), #4a8bc9);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #fff;
}

.service-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--ink-black);
}

.service-card p {
    color: #666;
    line-height: 1.7;
}

/* Features Section */
.features-section {
    position: relative;
    padding: 6rem 5%;
}

.features-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.feature-number {
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: var(--accent-blue);
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.feature-content h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--ink-black);
}

.feature-content p {
    color: #666;
    line-height: 1.7;
}

/* News Section */
.news-section {
    position: relative;
    padding: 6rem 5%;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.news-card {
    background: var(--glass-white);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: inherit;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.news-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-card-content {
    padding: 1.5rem;
}

.news-card-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--ink-black);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-excerpt {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #999;
    font-size: 0.85rem;
}

/* CTA Section */
.cta-section {
    position: relative;
    padding: 6rem 5%;
    text-align: center;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--glass-white);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 32px;
    padding: 4rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
}

.cta-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--ink-black);
}

.cta-text {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .features-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 150px 5% 80px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-container {
        padding: 2.5rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .service-card {
        padding: 2rem;
    }
}