/* 自定义样式 */
/* 排版优化 */
body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
}
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #2c3e50;
}
p {
    margin-bottom: 1rem;
    line-height: 1.7;
}
ul, ol {
    margin-bottom: 1rem;
}
li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* Hero Section with Carousel */
#heroCarousel {
    position: relative;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.carousel-indicators {
    position: static;
    display: flex;
    gap: 16px;
    margin-top: 3rem;
    margin-bottom: 0;
    justify-content: center;
}

.carousel-indicators button {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: rgba(148, 163, 184, 0.8);
    border: 3px solid #94a3b8;
    opacity: 1;
    transition: all 0.4s ease;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.carousel-indicators button:hover {
    background-color: #94a3b8;
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.carousel-indicators button.active {
    background-color: #667eea;
    width: 60px;
    border-radius: 30px;
    border: 3px solid #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transform: scale(1.1);
}

/* Carousel Controls */
.carousel-control-prev,
.carousel-control-next {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    border: 2px solid #e2e8f0;
    top: 50%;
    transform: translateY(-50%);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.carousel-control-prev {
    left: 20px;
}

.carousel-control-next {
    right: 20px;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    background-color: rgba(102, 126, 234, 0.1);
    border-color: #667eea;
    transform: translateY(-50%) scale(1.1);
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    width: 30px;
    height: 30px;
    background-color: #667eea;
    border-radius: 50%;
    background-size: 60% 60%;
}

.carousel-item {
    min-height: 450px;
}

.carousel-item > div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 450px;
}

/* Carousel Container */
#heroCarousel {
    position: relative;
}

/* Carousel Inner */
.carousel-inner {
    position: relative;
}

/* Carousel Indicators */
.carousel-indicators {
    position: static;
    display: flex;
    gap: 20px;
    margin-top: 3rem;
    margin-bottom: 0;
    justify-content: center;
    z-index: 5;
}

.carousel-item h1 {
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 2rem;
    font-size: 3rem;
}

.carousel-item p {
    font-size: 1.25rem;
    line-height: 1.7;
    color: #4a5568;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.carousel-item .btn {
    margin-right: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    padding: 1rem 2rem;
}

/* 产品核心定位卡片优化 */
.core-positioning-card {
    background: white;
    border-radius: 16px;
    border: 2px solid #f1f5f9;
    padding: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.core-positioning-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.4);
}

.core-positioning-card .card-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    transition: all 0.4s ease;
}

.core-positioning-card:hover .card-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.core-positioning-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.core-positioning-card:hover h3 {
    color: #667eea;
    transform: translateY(-2px);
}

.core-positioning-card p {
    font-size: 0.875rem;
    line-height: 1.5;
    color: #64748b;
    margin-bottom: 0;
    flex-grow: 1;
}

/* 核心定位区域 */
#core-positioning {
    margin-bottom: 2rem;
}

#core-positioning .section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* 功能反馈表单样式 */
#feedbackForm {
    transition: all 0.3s ease;
}

#feedbackForm select,
#feedbackForm textarea,
#feedbackForm input {
    transition: all 0.3s ease;
    outline: none;
}

#feedbackForm select:focus,
#feedbackForm textarea:focus,
#feedbackForm input:focus {
    outline: none;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.2);
}

#feedbackSubmitBtn {
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

#feedbackSubmitBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

#feedbackSuccess {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 特定于反馈表单的样式 */
.feedback-content-wrapper {
    position: relative;
}

.feedback-content-wrapper textarea {
    min-height: 120px;
    resize: vertical;
}

.feedback-content-wrapper .char-count {
    position: absolute;
    bottom: 10px;
    right: 12px;
    font-size: 0.75rem;
    color: #94a3b8;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 2px 6px;
    border-radius: 4px;
}

.text-danger {
    color: #dc3545 !important;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .carousel-indicators {
        margin-top: 2rem;
    }
    
    .carousel-indicators button {
        width: 16px;
        height: 16px;
    }
    
    .carousel-indicators button.active {
        width: 40px;
    }
    
    .carousel-item {
        min-height: 350px;
    }
    
    .carousel-item h1 {
        font-size: 2.5rem;
    }
    
    .carousel-item p {
        font-size: 1rem;
    }
    
    .carousel-item .btn {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
    }
    
    .core-positioning-card {
        padding: 24px;
    }
    
    .core-positioning-card .card-icon {
        width: 64px;
        height: 64px;
    }
    
    .core-positioning-card h3 {
        font-size: 1.25rem;
    }
    
    /* 功能反馈表单响应式 */
    #feedbackForm {
        padding: 1rem;
    }
    
    #feedbackForm .mb-6,
    #feedbackForm .mb-8 {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 576px) {
    .carousel-item h1 {
        font-size: 2rem;
    }
    
    .carousel-item .btn {
        font-size: 0.875rem;
        padding: 0.625rem 1.25rem;
    }
    
    .core-positioning-card {
        padding: 20px;
    }
    
    /* 功能反馈表单响应式 */
    .bg-gradient-to-r.from-blue-50.to-purple-50 {
        padding: 1.5rem;
    }
    
    .bg-gradient-to-r.from-blue-50.to-purple-50 h3 {
        font-size: 1.25rem;
    }
}

/* 章节标题 */
.section-title {
    position: relative;
    display: inline-block;
    margin-top: 1.5rem;
    margin-bottom: 3rem;
    font-weight: 700;
    color: #2c3e50;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* 功能卡片 */
.feature-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
    padding: 2rem;
    margin-bottom: 2rem;
}
.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}
.feature-card h3 {
    color: #2c3e50;
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}
.feature-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}
.feature-card ul li {
    color: #666;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

/* 功能图标 */
.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

/* 客户证言卡片 */
.testimonial-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 2.5rem;
    position: relative;
    background: white;
}
.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 4rem;
    color: #f0f0f0;
    font-family: serif;
    line-height: 1;
}
.testimonial-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-style: italic;
}

/* 价格卡片 */
.pricing-card {
    border: 2px solid transparent;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
}
.pricing-card.featured {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
}
.pricing-card.featured::before {
    content: '推荐';
    position: absolute;
    top: 15px;
    right: -30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 3rem;
    transform: rotate(45deg);
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}
.pricing-card.featured .card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    position: relative;
    overflow: hidden;
    padding: 2rem !important;
    border-bottom: none !important;
}
.pricing-card.featured .card-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1IiBoZWlnaHQ9IjUiPgo8cmVjdCB3aWR0aD0iNSIgaGVpZ2h0PSI1IiBmaWxsPSIjZmZmZmZmMjAiPjwvcmVjdD4KPHBhdGggZD0iTTAgNUw1IDBaTTYgNEw0IDZaTS0xIDFMMSAtMVoiIHN0cm9rZT0iI2ZmZmZmZiIgc3Ryb2tlLXdpZHRoPSIxIj48L3BhdGg+Cjwvc3ZnPg==');
    opacity: 0.1;
}
.pricing-card .card-header {
    padding: 2rem;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}
.pricing-card .card-body {
    padding: 2rem;
}
.pricing-card h3 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}
.pricing-card ul li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
    color: #666;
}
.pricing-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1rem;
    letter-spacing: 0.5px;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-outline-yellow {
    color: #f59e0b;
    border-color: #f59e0b;
    padding: 0.75rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1rem;
    letter-spacing: 0.5px;
}
.btn-outline-yellow:hover {
    color: white;
    background-color: #f59e0b;
    border-color: #f59e0b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(245, 158, 11, 0.3);
}

/* 优势项目 */
.advantage-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}
.advantage-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    transition: all 0.3s ease;
}
.advantage-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    margin-top: 0.25rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}
.advantage-item h3 {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-size: 1.1rem;
}
.advantage-item p {
    color: #666;
    margin-bottom: 0;
    line-height: 1.6;
}

/* 场景图标 */
.scene-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: #f8f9fa;
    color: #667eea;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

/* 场景卡片 */
.scene-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 2rem;
    transition: all 0.3s ease;
    background: white;
    margin-bottom: 2rem;
}
.scene-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* 承诺卡片 */
.commitment-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 2rem;
    transition: all 0.3s ease;
    background: white;
    text-align: center;
    margin-bottom: 2rem;
}
.commitment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* 产品规格卡片 - 模仿火山引擎EFS */
.spec-card {
    border: 1px solid #e9ecef;
    border-radius: 12px;
    transition: all 0.3s ease;
    overflow: hidden;
    margin-bottom: 2rem;
}
.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
}
.spec-card .card-header {
    padding: 1.5rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}
.spec-card .card-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}
.spec-card .card-header p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0;
}
.spec-card .card-body {
    padding: 2rem;
}
.spec-card .spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f0f0f0;
}
.spec-card .spec-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.spec-card .spec-label {
    color: #666;
}
.spec-card .spec-value {
    font-weight: 600;
    color: #2c3e50;
}
.spec-card .price-info {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #f0f0f0;
}
.spec-card .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
}
.spec-card .price-desc {
    font-size: 0.9rem;
    color: #666;
}

/* 产品优势卡片 - 模仿火山引擎EFS */
.advantage-card {
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    margin-bottom: 2rem;
    background: white;
}
.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
}
.advantage-card .advantage-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}
.advantage-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}
.advantage-card p {
    color: #666;
    line-height: 1.7;
}

/* 应用场景卡片 - 模仿火山引擎EFS */
.scene-card {
    border: 1px solid #e9ecef;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 2rem;
    transition: all 0.3s ease;
    background: white;
    margin-bottom: 2rem;
}
.scene-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}
.scene-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}
.scene-card p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}
.scene-card .scene-features {
    margin-top: 1.5rem;
}
.scene-card .scene-feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}
.scene-card .scene-feature-item i {
    color: #667eea;
    margin-right: 0.75rem;
}

/* 按钮样式 - 新增 */
.btn-outline-primary {
    color: #667eea;
    border-color: #667eea;
    padding: 0.75rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1rem;
    letter-spacing: 0.5px;
}
.btn-outline-primary:hover {
    color: white;
    background-color: #667eea;
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .hero-section {
        padding: 4rem 0;
    }
    .hero-section h1 {
        font-size: 2rem;
    }
    .hero-section p {
        font-size: 1rem;
    }
    .section-title {
        font-size: 1.5rem;
        margin-top: 1rem;
        margin-bottom: 2rem;
    }
    .feature-card,
    .testimonial-card,
    .pricing-card,
    .scene-card,
    .commitment-card {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    .advantage-item {
        flex-direction: column;
        text-align: center;
    }
    .advantage-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    .row.g-6 {
        gap: 1.5rem;
    }
    .btn {
        display: inline-block;
        width: auto;
        margin-bottom: 0;
    }
    .btn-lg {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
    }
}