/* Chrome 首页专用样式 */

/* ========================================
   Chrome 导航栏差异化样式 - 居中布局
======================================== */
.multi-header-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.multi-main-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
}

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

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

.chrome-logo-img {
    height: 40px;
    width: auto;
}

.chrome-logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #5F6368;
}

.multi-header-box .multi-header-menu {
    float: none;
}

.multi-header-box .multi-nav-white a {
    color: #5F6368 !important;
    font-weight: 500;
    padding: 8px 16px !important;
    border-radius: 8px;
}

.multi-header-box .multi-nav-white a:hover {
    color: #1A73E8 !important;
    background: rgba(26, 115, 232, 0.08) !important;
}

.multi-header-box .multi-header-search {
    display: none;
}

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

/* ========================================
   Google 品牌色
======================================== */
:root {
    --google-blue: #4285f4;
    --google-red: #ea4335;
    --google-yellow: #fbbc04;
    --google-green: #34a853;
    --google-dark: #202124;
    --google-gray: #5f6368;
    --google-light-gray: #f8f9fa;
}

/* ========================================
   Hero 区域
======================================== */
.hero-section-chrome {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8eaed 100%);
    position: relative;
    overflow: hidden;
}

.hero-section-chrome::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(66, 133, 244, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container-chrome {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content-chrome {
    flex: 1;
}

.hero-title-chrome {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--google-dark);
}

.title-main {
    display: block;
    font-size: 48px;
    color: var(--google-gray);
}

.title-highlight {
    display: block;
    background: linear-gradient(90deg, var(--google-blue) 0%, var(--google-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle-chrome {
    font-size: 20px;
    color: var(--google-gray);
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.btn-chrome-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--google-blue);
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.btn-chrome-primary:hover {
    background: #1a73e8;
    box-shadow: 0 4px 12px rgba(66, 133, 244, 0.4);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 20px;
}

.btn-chrome-secondary {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    background: #fff;
    color: var(--google-blue);
    border: 2px solid var(--google-blue);
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-chrome-secondary:hover {
    background: var(--google-blue);
    color: #fff;
}

.hero-note {
    font-size: 14px;
    color: var(--google-gray);
}

.hero-image-chrome {
    flex: 1;
    display: flex;
    justify-content: center;
}

.chrome-browser-mockup {
    width: 100%;
    max-width: 500px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.browser-header {
    background: #e8eaed;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.browser-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.browser-tabs {
    flex: 1;
    display: flex;
}

.browser-tab {
    background: #fff;
    padding: 8px 20px;
    border-radius: 8px 8px 0 0;
    font-size: 14px;
    color: var(--google-dark);
}

.browser-content {
    padding: 60px 40px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.chrome-logo-large {
    animation: float 3s ease-in-out infinite;
}

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

/* ========================================
   核心功能区域
======================================== */
.features-section-chrome {
    padding: 80px 0;
    background: #fff;
}

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

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

.section-desc-chrome {
    font-size: 18px;
    text-align: center;
    color: var(--google-gray);
    margin-bottom: 50px;
}

.features-grid-chrome {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card-chrome {
    background: #fff;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid #e8eaed;
}

.feature-card-chrome:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.feature-blue:hover { border-color: var(--google-blue); }
.feature-red:hover { border-color: var(--google-red); }
.feature-green:hover { border-color: var(--google-green); }
.feature-yellow:hover { border-color: var(--google-yellow); }

.feature-icon-chrome {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title-chrome {
    font-size: 20px;
    font-weight: 600;
    color: var(--google-dark);
    margin-bottom: 12px;
}

.feature-desc-chrome {
    font-size: 15px;
    line-height: 1.6;
    color: var(--google-gray);
}

/* ========================================
   安全功能区域
======================================== */
.security-section-chrome {
    padding: 80px 0;
    background: var(--google-light-gray);
}

.security-content-chrome {
    display: flex;
    align-items: center;
    gap: 60px;
}

.security-text {
    flex: 1;
}

.section-title-left {
    font-size: 40px;
    font-weight: 700;
    color: var(--google-dark);
    margin-bottom: 40px;
}

.security-features-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.security-item {
    display: flex;
    gap: 20px;
}

.security-item-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.security-item-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--google-dark);
    margin-bottom: 8px;
}

.security-item-content p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--google-gray);
}

.security-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.security-shield {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--google-blue) 0%, var(--google-green) 100%);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(66, 133, 244, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.shield-icon {
    font-size: 80px;
    margin-bottom: 10px;
}

.shield-text {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

/* ========================================
   效率工具区域
======================================== */
.productivity-section-chrome {
    padding: 80px 0;
    background: #fff;
}

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

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

.productivity-card:hover {
    background: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.productivity-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.productivity-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--google-dark);
    margin-bottom: 5px;
}

.productivity-card p {
    font-size: 12px;
    color: var(--google-gray);
}

/* ========================================
   下载 CTA 区域
======================================== */
.download-cta-chrome {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--google-blue) 0%, var(--google-green) 100%);
    color: #fff;
}

.cta-container-chrome {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

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

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

.cta-buttons-chrome {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.btn-download-chrome {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    background: #fff;
    color: var(--google-dark);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-download-chrome:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.download-icon {
    font-size: 32px;
}

.download-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-platform {
    font-size: 18px;
    font-weight: 600;
    color: var(--google-dark);
}

.download-version {
    font-size: 13px;
    color: var(--google-gray);
}

.cta-note {
    font-size: 14px;
    opacity: 0.9;
}

/* ========================================
   FAQ 区域
======================================== */
.faq-section-chrome {
    padding: 80px 0;
    background: #fff;
}

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

.faq-item-chrome {
    background: #fff;
    border: 2px solid #e8eaed;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item-chrome:hover {
    border-color: var(--google-blue);
}

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

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

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

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

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

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

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

/* ========================================
   响应式设计
======================================== */
@media (max-width: 1024px) {
    .hero-container-chrome {
        gap: 40px;
    }
    
    .features-grid-chrome {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .productivity-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-section-chrome {
        padding: 60px 0;
    }
    
    .hero-container-chrome {
        flex-direction: column;
        gap: 40px;
    }
    
    .hero-title-chrome {
        font-size: 40px;
    }
    
    .title-main {
        font-size: 36px;
    }
    
    .hero-buttons-chrome {
        flex-direction: column;
    }
    
    .btn-chrome-primary,
    .btn-chrome-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .features-grid-chrome {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .security-content-chrome {
        flex-direction: column;
    }
    
    .security-shield {
        width: 250px;
        height: 250px;
    }
    
    .productivity-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-buttons-chrome {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-download-chrome {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title-chrome {
        font-size: 32px;
    }
    
    .title-main {
        font-size: 28px;
    }
    
    .section-title-chrome,
    .section-title-left,
    .cta-title-chrome {
        font-size: 32px;
    }
    
    .productivity-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Chrome 导航栏差异化样式
======================================== */
.multi-header-box {
    background: linear-gradient(135deg, #4285F4 0%, #34A853 100%);
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.2);
}

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

.chrome-logo-link img {
    width: 40px;
    height: 40px;
}

.multi-header-box .multi-nav-white a {
    color: #FFFFFF !important;
    font-weight: 500;
    transition: all 0.3s ease;
}

.multi-header-box .multi-nav-white a:hover {
    color: #FBBC04 !important;
}

/* Chrome 底部差异化样式 */
.footer {
    background: linear-gradient(135deg, #1A73E8 0%, #0D47A1 100%);
    color: #FFFFFF;
}

.footer .logo {
    font-size: 28px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 15px;
}

.footer .section h3 {
    color: #FBBC04;
    border-bottom: 2px solid #FBBC04;
    padding-bottom: 8px;
}

.footer .section a {
    color: rgba(255, 255, 255, 0.9);
}

.footer .section a:hover {
    color: #FBBC04;
}

.footer-bottom {
    background: #0D47A1;
    color: rgba(255, 255, 255, 0.8);
}

/* Chrome FAQ 卡片式布局 */
.faq-list-chrome {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    max-width: 1000px;
    margin: 50px auto 0;
}

.faq-item-chrome {
    background: linear-gradient(135deg, #F8F9FA 0%, #E8F0FE 100%);
    border: none;
    border-left: 4px solid #4285F4;
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
}

.faq-item-chrome:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(66, 133, 244, 0.2);
    border-left-color: #EA4335;
}

.faq-question-chrome {
    display: block;
    padding: 0;
    cursor: default;
}

.faq-question-chrome h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1A73E8;
    margin: 0 0 12px 0;
}

.faq-toggle-chrome {
    display: none;
}

.faq-answer-chrome {
    max-height: none;
    overflow: visible;
    padding: 0;
}

.faq-answer-chrome p {
    font-size: 15px;
    line-height: 1.7;
    color: #5F6368;
    margin: 0;
}

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