/* DeepL 首页专用样式 */

/* ========================================
   SEO 优化
======================================== */
.seo-h1 {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

/* ========================================
   DeepL 品牌色
======================================== */
:root {
    --deepl-primary: #0F2B46;
    --deepl-secondary: #00B8A3;
    --deepl-accent: #00D4AA;
    --deepl-dark: #042B48;
    --deepl-gray: #5A6C7D;
    --deepl-light-gray: #F5F7FA;
    --deepl-white: #FFFFFF;
}

/* ========================================
   Hero 区域
======================================== */
.hero-section-deepl {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--deepl-primary) 0%, var(--deepl-dark) 100%);
    color: var(--deepl-white);
    position: relative;
    overflow: hidden;
}

.hero-section-deepl::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-content-deepl {
    max-width: 700px;
    margin-bottom: 60px;
}

.hero-title-deepl {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle-deepl {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-buttons-deepl {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.btn-deepl-primary {
    padding: 16px 32px;
    background: var(--deepl-secondary);
    color: var(--deepl-white);
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-deepl-primary:hover {
    background: var(--deepl-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.3);
}

.btn-deepl-secondary {
    padding: 16px 32px;
    background: transparent;
    color: var(--deepl-white);
    border: 2px solid var(--deepl-white);
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-deepl-secondary:hover {
    background: var(--deepl-white);
    color: var(--deepl-primary);
}

.hero-note-deepl {
    font-size: 14px;
    opacity: 0.8;
}

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

.stat-card-deepl {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-card-deepl:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.stat-number-deepl {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--deepl-accent);
}

.stat-label-deepl {
    font-size: 14px;
    opacity: 0.9;
}

/* ========================================
   产品套件区域
======================================== */
.products-section-deepl {
    padding: 80px 0;
    background: var(--deepl-white);
}

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

.section-title-deepl {
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    color: var(--deepl-primary);
    margin-bottom: 15px;
}

.section-desc-deepl {
    font-size: 18px;
    text-align: center;
    color: var(--deepl-gray);
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.products-grid-deepl {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card-deepl {
    background: var(--deepl-white);
    border: 2px solid #E5E7EB;
    border-radius: 12px;
    padding: 40px 30px;
    transition: all 0.3s ease;
}

.product-card-deepl:hover {
    border-color: var(--deepl-secondary);
    box-shadow: 0 8px 24px rgba(0, 184, 163, 0.15);
    transform: translateY(-5px);
}

.product-icon-deepl {
    font-size: 48px;
    margin-bottom: 20px;
}

.product-title-deepl {
    font-size: 24px;
    font-weight: 700;
    color: var(--deepl-primary);
    margin-bottom: 15px;
}

.product-desc-deepl {
    font-size: 15px;
    line-height: 1.6;
    color: var(--deepl-gray);
    margin-bottom: 20px;
}

.product-link-deepl {
    color: var(--deepl-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.product-link-deepl:hover {
    color: var(--deepl-accent);
}

/* ========================================
   行业应用区域
======================================== */
.industries-section-deepl {
    padding: 80px 0;
    background: var(--deepl-light-gray);
}

.industries-grid-deepl {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.industry-card-deepl {
    background: var(--deepl-white);
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.industry-card-deepl:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.industry-icon-deepl {
    font-size: 36px;
    margin-bottom: 15px;
}

.industry-card-deepl h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--deepl-primary);
    margin-bottom: 8px;
}

.industry-card-deepl p {
    font-size: 13px;
    color: var(--deepl-gray);
    line-height: 1.4;
}

/* ========================================
   核心优势区域
======================================== */
.features-section-deepl {
    padding: 80px 0;
    background: var(--deepl-white);
}

.features-list-deepl {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.feature-item-deepl {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.feature-icon-large-deepl {
    font-size: 56px;
    flex-shrink: 0;
}

.feature-content-deepl h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--deepl-primary);
    margin-bottom: 12px;
}

.feature-content-deepl p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--deepl-gray);
}

/* ========================================
   CTA 区域
======================================== */
.cta-section-deepl {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--deepl-primary) 0%, var(--deepl-dark) 100%);
    color: var(--deepl-white);
}

.cta-container-deepl {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.cta-title-deepl {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-subtitle-deepl {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons-deepl {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.btn-cta-deepl {
    padding: 16px 40px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-cta-primary {
    background: var(--deepl-secondary);
    color: var(--deepl-white);
}

.btn-cta-primary:hover {
    background: var(--deepl-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.3);
}

.btn-cta-secondary {
    background: transparent;
    color: var(--deepl-white);
    border: 2px solid var(--deepl-white);
}

.btn-cta-secondary:hover {
    background: var(--deepl-white);
    color: var(--deepl-primary);
}

.cta-features-deepl {
    display: flex;
    justify-content: center;
    gap: 40px;
    font-size: 14px;
    opacity: 0.9;
}

/* ========================================
   FAQ 区域
======================================== */
.faq-section-deepl {
    padding: 80px 0;
    background: var(--deepl-white);
}

.faq-list-deepl {
    max-width: 900px;
    margin: 50px auto 0;
}

.faq-item-deepl {
    background: var(--deepl-white);
    border: 2px solid #E5E7EB;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item-deepl:hover {
    border-color: var(--deepl-secondary);
}

.faq-question-deepl {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    user-select: none;
}

.faq-question-deepl h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--deepl-primary);
    margin: 0;
}

.faq-toggle-deepl {
    font-size: 28px;
    font-weight: 300;
    color: var(--deepl-secondary);
    transition: transform 0.3s ease;
}

.faq-item-deepl.active .faq-toggle-deepl {
    transform: rotate(45deg);
}

.faq-answer-deepl {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item-deepl.active .faq-answer-deepl {
    max-height: 300px;
    padding: 0 25px 20px;
}

.faq-answer-deepl p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--deepl-gray);
    margin: 0;
}

/* ========================================
   响应式设计
======================================== */
@media (max-width: 1024px) {
    .hero-stats-deepl {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .industries-grid-deepl {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .features-list-deepl {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-section-deepl {
        padding: 60px 0;
    }
    
    .hero-title-deepl {
        font-size: 36px;
    }
    
    .hero-subtitle-deepl {
        font-size: 18px;
    }
    
    .hero-buttons-deepl {
        flex-direction: column;
    }
    
    .btn-deepl-primary,
    .btn-deepl-secondary {
        width: 100%;
        text-align: center;
    }
    
    .hero-stats-deepl {
        grid-template-columns: 1fr;
    }
    
    .section-title-deepl {
        font-size: 32px;
    }
    
    .products-grid-deepl {
        grid-template-columns: 1fr;
    }
    
    .industries-grid-deepl {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-buttons-deepl {
        flex-direction: column;
    }
    
    .btn-cta-deepl {
        width: 100%;
    }
    
    .cta-features-deepl {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .hero-title-deepl {
        font-size: 28px;
    }
    
    .section-title-deepl,
    .cta-title-deepl {
        font-size: 28px;
    }
    
    .industries-grid-deepl {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   DeepL 导航栏差异化样式
======================================== */
.multi-header-box {
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid #E5E7EB;
}

.multi-main-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.deepl-logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.deepl-logo-link:hover {
    transform: scale(1.05);
}

.deepl-logo-img {
    height: 32px;
    width: auto;
}

.deepl-logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #0F2B46;
}

.multi-header-box .multi-nav-white a {
    color: #0F2B46 !important;
    font-weight: 500;
}

.multi-header-box .multi-nav-white a:hover {
    color: #00B8A3 !important;
}

.multi-header-box .multi-header-search .top-input {
    background: #F5F7FA;
    color: #0F2B46;
    border: 1px solid #E5E7EB;
}

.multi-header-box .multi-header-search .top-input::placeholder {
    color: #5A6C7D;
}

/* DeepL 底部差异化样式 */
.footer {
    background: #0F2B46;
    color: #FFFFFF;
}

.footer .logo {
    font-size: 26px;
    font-weight: 700;
    color: #00B8A3;
    margin-bottom: 15px;
}

.footer .section h3 {
    color: #00D4AA;
    border-bottom: 2px solid #00B8A3;
    padding-bottom: 8px;
}

.footer .section a {
    color: rgba(255, 255, 255, 0.85);
}

.footer .section a:hover {
    color: #00D4AA;
}

.footer-bottom {
    background: #042B48;
    color: rgba(255, 255, 255, 0.7);
}

/* DeepL FAQ 手风琴式布局 - 保持原有交互 */
.faq-list-deepl {
    max-width: 900px;
    margin: 50px auto 0;
}

.faq-item-deepl {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item-deepl:hover {
    border-color: #00B8A3;
    box-shadow: 0 4px 12px rgba(0, 184, 163, 0.1);
}

.faq-question-deepl {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    user-select: none;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 184, 163, 0.05) 100%);
}

.faq-question-deepl h3 {
    font-size: 17px;
    font-weight: 600;
    color: #0F2B46;
    margin: 0;
}

.faq-toggle-deepl {
    font-size: 28px;
    font-weight: 300;
    color: #00B8A3;
    transition: transform 0.3s ease;
}

.faq-item-deepl.active .faq-toggle-deepl {
    transform: rotate(45deg);
}

.faq-item-deepl.active .faq-question-deepl {
    background: linear-gradient(90deg, rgba(0, 184, 163, 0.1) 0%, rgba(0, 212, 170, 0.05) 100%);
}

.faq-answer-deepl {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item-deepl.active .faq-answer-deepl {
    max-height: 300px;
    padding: 0 25px 20px;
}

.faq-answer-deepl p {
    font-size: 15px;
    line-height: 1.8;
    color: #5A6C7D;
    margin: 0;
}