/* ========================================
   首页样式
   ======================================== */

/* Hero 区域 */
.hero {
    min-height: 100vh;
    padding: 140px 60px 100px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-warm) 0%, #fff 100%);
}

.hero-content {
    max-width: 700px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}

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

.hero h1 {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--secondary);
}

.hero h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--text-main);
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
    border: 2px solid #eee;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
}

.hero-visual {
    position: absolute;
    right: 100px;
    top: 50%;
    transform: translateY(-50%);
    width: 600px;
    height: 600px;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    animation: pulse 4s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 140, 90, 0.05) 100%);
    top: 50px;
    right: 100px;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    opacity: 0.1;
    top: 200px;
    right: 250px;
    animation-delay: 1s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    background: var(--primary);
    opacity: 0.2;
    top: 350px;
    right: 150px;
    animation-delay: 2s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

/* 服务区块 */
.services {
    background: var(--bg-warm);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.service-card {
    background: var(--bg-warm);
    padding: 40px 30px;
    border-radius: var(--radius);
    text-align: center;
    transition: all 0.4s;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    transform: scaleX(0);
    transition: transform 0.4s;
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: white;
    transition: all 0.4s;
}

.service-card:hover .service-icon {
    transform: rotate(10deg) scale(1.1);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--secondary);
}

.service-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 定制服务区块 */
.custom-section {
    background: linear-gradient(180deg, #fff 0%, var(--bg-warm) 100%);
}

/* SAAS 区块 */
.saas-section {
    background: white;
}

.saas-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.saas-feature {
    padding: 40px;
    background: var(--bg-warm);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.saas-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.saas-feature .icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-bottom: 24px;
}

.saas-feature h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.saas-feature p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 案例区块 */
.cases-section {
    background: var(--bg-warm);
}

.cases-filter {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 28px;
    background: white;
    border: 2px solid #eee;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-secondary);
}

.filter-btn.active,
.filter-btn:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border-color: transparent;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s;
    cursor: pointer;
}

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

.case-image {
    height: 220px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    opacity: 0;
    transition: opacity 0.4s;
}

.case-card:hover .case-image::before {
    opacity: 0.1;
}

.case-info {
    padding: 24px;
}

.case-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.case-tag {
    padding: 4px 12px;
    background: var(--bg-warm);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
}

.case-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
}

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

    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }

    .hero {
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .saas-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        flex-wrap: wrap;
    }

    .step {
        flex: 1 1 calc(50% - 10px);
        min-width: 150px;
    }

    .step::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 20px 60px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 16px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 6px 16px;
    }

    .btn-primary,
    .btn-secondary {
        padding: 14px 28px;
        font-size: 14px;
    }

    .services-grid,
    .saas-features,
    .cases-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        flex-direction: column;
    }

    .step {
        flex: 1 1 100%;
    }
}

@media (max-width: 375px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}