/* 全局基础重置与Bing优化字体设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #2c3e50;
    background-color: #f9fbfe;
    line-height: 1.6;
}
a {
    text-decoration: none;
    color: inherit;
}

/* 导航栏区域 */
.main-navigation-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}
.brand-identity-box .logo-link {
    font-size: 24px;
    font-weight: bold;
    color: #ff5722; /* 狗急加速器标志性活力橙 */
}
.hyperlink-list .nav-item {
    margin-left: 30px;
    font-weight: 500;
    transition: color 0.3s;
}
.hyperlink-list .nav-item:hover, .hyperlink-list .nav-item.active {
    color: #ff5722;
}

/* 页面通用主体布局 */
.page-body-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}
.section-main-heading {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    position: relative;
    color: #111;
}

/* 区块一：软件特色 (Hero Section) */
.hero-feature-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 60px 0;
    gap: 40px;
}
.text-content-wrapper {
    flex: 1;
}
.text-content-wrapper h1 {
    font-size: 42px;
    line-height: 1.3;
    margin-bottom: 20px;
    color: #1a1a1a;
}
.sub-slogan-text {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
}
.primary-download-trigger {
    display: inline-block;
    padding: 15px 40px;
    background: #ff5722;
    color: #fff;
    border-radius: 30px;
    font-size: 18px;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(255,87,34,0.3);
    transition: transform 0.3s;
}
.primary-download-trigger:hover {
    transform: translateY(-3px);
}
.graphic-asset-holder {
    flex: 1;
    text-align: center;
}
.responsive-ui-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
}

/* 区块二：核心功能 */
.core-capabilities-grid {
    padding: 60px 0;
}
.cards-flex-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}
.service-benefit-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    text-align: center;
    border: 1px solid #f0f0f0;
}
.feature-icon-item {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
}
.service-benefit-card h3 {
    margin-bottom: 12px;
    font-size: 20px;
}
.service-benefit-card p {
    font-size: 14px;
    color: #777;
}

/* 区块三：软件展示（图文交错） */
.software-ui-gallery {
    padding: 60px 0;
}
.alternating-row-block {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 60px;
}
.alternating-row-block.inverse {
    flex-direction: row-reverse;
}
.visual-image-wrapper {
    flex: 1;
}
.gallery-screenshot {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}
.narrative-text-box {
    flex: 1;
}
.narrative-text-box h3 {
    font-size: 26px;
    margin-bottom: 15px;
}
.narrative-text-box p {
    color: #555;
    font-size: 16px;
}

/* 区块四：套餐选择 */
.pricing-matrix-layout {
    padding: 60px 0;
}
.tier-cards-wrapper {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}
.price-tier-item {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 40px 30px;
    width: 320px;
    text-align: center;
    position: relative;
}
.price-tier-item.popular {
    border-color: #ff5722;
    box-shadow: 0 10px 20px rgba(255,87,34,0.1);
    transform: scale(1.05);
}
.recommend-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #ff5722;
    color: #fff;
    padding: 4px 15px;
    border-radius: 20px;
    font-size: 12px;
}
.price-tag-value {
    font-size: 36px;
    font-weight: bold;
    color: #ff5722;
    margin: 20px 0;
}
.purchase-action-node {
    display: block;
    margin-top: 30px;
    padding: 12px 0;
    background: #2c3e50;
    color: #fff;
    border-radius: 6px;
    font-weight: bold;
}
.price-tier-item.popular .purchase-action-node {
    background: #ff5722;
}

/* 区块五：用户评价 */
.user-voice-wrapper {
    padding: 60px 0;
}
.feedback-masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.testimonial-bubble {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #ff5722;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}
.reviewer-meta {
    display: block;
    margin-top: 15px;
    font-style: normal;
    color: #999;
    font-size: 13px;
}

/* 区块六：常见问题 FAQ */
.faq-accordion-block {
    padding: 60px 0;
}
.accordion-list-container {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item-details {
    background: #fff;
    margin-bottom: 15px;
    border-radius: 6px;
    border: 1px solid #eef2f5;
}
.faq-question-trigger {
    padding: 20px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
}
.faq-answer-content {
    padding: 0 20px 20px 20px;
    color: #666;
}

/* 页面二样式：下载页中心面板 */
.download-hub-showcase {
    padding: 40px 0;
}
.hub-header-intro {
    text-align: center;
    margin-bottom: 50px;
}
.hub-header-intro h1 {
    font-size: 36px;
    margin-bottom: 15px;
}
.platform-cards-cluster {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}
.download-matrix-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    border: 1px solid #eef2f5;
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
}
.os-symbol-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
}
.version-badge-info {
    display: inline-block;
    font-size: 12px;
    color: #ff5722;
    background: rgba(255,87,34,0.1);
    padding: 2px 10px;
    border-radius: 10px;
    margin: 10px 0;
}
.update-log-text {
    font-size: 13px;
    color: #888;
    min-height: 48px;
    margin-bottom: 20px;
}
.direct-download-action {
    display: block;
    background: #ff5722;
    color: #fff;
    padding: 10px 0;
    border-radius: 6px;
    font-weight: bold;
}

/* 页面二样式：安装指南 */
.setup-tutorial-section {
    padding: 60px 0;
    background: #fff;
    border-radius: 12px;
    margin-top: 40px;
}
.steps-graphic-flex {
    display: flex;
    justify-content: space-around;
    gap: 30px;
    padding: 20px;
    flex-wrap: wrap;
}
.step-card-detail {
    flex: 1;
    min-width: 250px;
    text-align: center;
}
.step-numerical-index {
    font-size: 48px;
    font-weight: 900;
    color: rgba(255,87,34,0.1);
}
.step-card-detail h4 {
    font-size: 18px;
    margin: 10px 0;
}
.step-card-detail p {
    font-size: 14px;
    color: #666;
}

/* 企业官网标准底部 */
.corporate-footer-layout {
    background: #1a1c1e;
    color: #a0a5aa;
    padding: 60px 10% 20px 10%;
    margin-top: 80px;
}
.footer-columns-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    border-bottom: 1px solid #2c2e31;
    padding-bottom: 40px;
}
.footer-brand-summary {
    flex: 2;
    min-width: 280px;
}
.footer-brand-summary h5 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 15px;
}
.footer-links-column {
    flex: 1;
    min-width: 150px;
    color: #fff;
    font-weight: bold;
}
.footer-links-column ul {
    list-style: none;
    margin-top: 15px;
}
.footer-links-column ul li {
    margin-bottom: 10px;
}
.footer-links-column ul li a {
    color: #a0a5aa;
    font-weight: normal;
    font-size: 14px;
    transition: color 0.3s;
}
.footer-links-column ul li a:hover {
    color: #ff5722;
}
.footer-copyright-banner {
    text-align: center;
    padding-top: 20px;
    font-size: 13px;
}

/* 针对移动设备的响应式断点优化 */
@media (max-width: 768px) {
    .hero-feature-display, .alternating-row-block, .alternating-row-block.inverse {
        flex-direction: column;
        text-align: center;
    }
    .main-navigation-bar {
        padding: 15px 5%;
    }
    .text-content-wrapper h1 {
        font-size: 30px;
    }
}