/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

a:hover {
    color: #1a73e8;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

button, input, textarea {
    font-family: inherit;
    outline: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #1a73e8;
    color: white;
    border: 1px solid #1a73e8;
}

.btn-primary:hover {
    background-color: #0d5bba;
    border-color: #0d5bba;
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: #1a73e8;
    border: 1px solid #1a73e8;
}

.btn-outline:hover {
    background-color: #1a73e8;
    color: white;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1.1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #5f6368;
}

/* 导航栏样式 */
.header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo img {
    height: 40px;
}

.nav__list {
    display: flex;
}

.nav__item {
    margin: 0 15px;
}

.nav__link {
    font-weight: 500;
    color: #5f6368;
    padding: 8px 0;
    position: relative;
}

.nav__link.active {
    color: #1a73e8;
}

.nav__link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #1a73e8;
}

.header__actions {
    display: flex;
    align-items: center;
}

/* 面包屑导航 */
.breadcrumb {
    background-color: #f1f3f4;
    padding: 15px 0;
}

.breadcrumb__list {
    display: flex;
}

.breadcrumb__item:not(:last-child)::after {
    content: '/';
    margin: 0 8px;
    color: #5f6368;
}

.breadcrumb__item a:hover {
    color: #1a73e8;
}

/* 英雄区域样式 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
}

.hero__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero__content {
    flex: 1;
    max-width: 600px;
}

.hero__title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #202124;
}

.hero__description {
    font-size: 1.1rem;
    color: #5f6368;
    margin-bottom: 30px;
}

.hero__buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.hero__stats {
    display: flex;
    gap: 30px;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a73e8;
    margin-bottom: 5px;
}

.hero__stat-text {
    font-size: 0.9rem;
    color: #5f6368;
}

.hero__image {
    flex: 1;
    max-width: 600px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 特点部分样式 */
.features {
    padding: 80px 0;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-card__icon {
    margin-bottom: 20px;
}

.feature-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #202124;
}

.feature-card__description {
    color: #5f6368;
}

/* 工作流程样式 */
.workflow {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.workflow__steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.workflow__step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.workflow__step-number {
    background-color: #1a73e8;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.workflow__step-content {
    flex: 1;
}

.workflow__step-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
}

.workflow__step-description {
    color: #5f6368;
    margin-bottom: 15px;
}

.workflow__step-image {
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 应用场景样式 */
.use-cases {
    padding: 80px 0;
}

.use-cases__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.use-case-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.use-case-card__image {
    height: 200px;
    overflow: hidden;
}

.use-case-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.use-case-card:hover .use-case-card__image img {
    transform: scale(1.05);
}

.use-case-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 20px 20px 10px;
    color: #202124;
}

.use-case-card__description {
    color: #5f6368;
    margin: 0 20px 20px;
}

/* 用户评价样式 */
.testimonials {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-card__text {
    font-style: italic;
    color: #5f6368;
    margin-bottom: 20px;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
}

.testimonial-card__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 15px;
}

.testimonial-card__author-name {
    font-weight: 600;
    color: #202124;
    margin-bottom: 5px;
}

.testimonial-card__author-position {
    font-size: 0.9rem;
    color: #5f6368;
}

/* 下载区域样式 */
.download-cta {
    padding: 80px 0;
}

.download-cta__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #1a73e8;
    border-radius: 12px;
    padding: 60px;
    color: white;
}

.download-cta__content {
    flex: 1;
    max-width: 600px;
}

.download-cta__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.download-cta__description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.download-cta__buttons {
    display: flex;
    gap: 15px;
}

.download-cta__image {
    flex: 1;
    max-width: 400px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-outline-white {
    background-color: transparent;
    color: white;
    border: 1px solid white;
}

.btn-outline-white:hover {
    background-color: white;
    color: #1a73e8;
}

/* 资讯列表样式 */
.news-section {
    padding: 80px 0;
}

.news__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.news-card__image {
    height: 200px;
    overflow: hidden;
}

.news-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-card__image img {
    transform: scale(1.05);
}

.news-card__content {
    padding: 20px;
}

.news-card__meta {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: #5f6368;
}

.news-card__title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
}

.news-card__description {
    color: #5f6368;
    margin-bottom: 15px;
}

.news-card__read-more {
    color: #1a73e8;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.news-card__read-more::after {
    content: '→';
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.news-card:hover .news-card__read-more::after {
    transform: translateX(3px);
}

.news__more {
    text-align: center;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 4px;
    color: #5f6368;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination__link:hover {
    background-color: #f1f3f4;
    color: #1a73e8;
}

.pagination__link.active {
    background-color: #1a73e8;
    color: white;
}

.pagination__link.prev,
.pagination__link.next {
    width: auto;
    padding: 0 15px;
}

.pagination__link.dots {
    pointer-events: none;
}

/* 页脚样式 */
.footer {
    background-color: #202124;
    color: #e8eaed;
    padding-top: 60px;
}

.footer__top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer__logo img {
    height: 40px;
    margin-bottom: 20px;
}

.footer__description {
    color: #9aa0a6;
    margin-bottom: 20px;
}

.footer__social {
    display: flex;
    gap: 15px;
}

.footer__social-link img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.footer__social-link:hover img {
    transform: scale(1.1);
}

.footer__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__link {
    color: #9aa0a6;
    transition: color 0.3s ease;
}

.footer__link:hover {
    color: white;
}

.footer__text {
    color: #9aa0a6;
    margin-bottom: 15px;
}

.footer__form {
    display: flex;
}

.footer__input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #5f6368;
    border-radius: 4px 0 0 4px;
    background-color: transparent;
    color: white;
}

.footer__input::placeholder {
    color: #9aa0a6;
}

.footer__input:focus {
    border-color: #1a73e8;
}

.footer__bottom {
    border-top: 1px solid #5f6368;
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__copyright {
    color: #9aa0a6;
}

.footer__links {
    display: flex;
    gap: 20px;
}

/* 帮助中心页面特定样式 */
.help-hero {
    padding: 80px 0;
    background-color: #f5f7fa;
    text-align: center;
}

.help-hero__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #202124;
}

.help-hero__description {
    font-size: 1.1rem;
    color: #5f6368;
    margin-bottom: 30px;
}

.help-hero__search {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
}

.help-hero__input {
    flex: 1;
    padding: 12px 20px;
    border: 1px solid #dadce0;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

.help-hero__button {
    padding: 12px 20px;
    background-color: #1a73e8;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: 500;
}

.help-categories {
    padding: 80px 0;
}

.help-categories__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.help-category-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.help-category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.help-category-card__icon {
    margin-bottom: 20px;
}

.help-category-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
}

.help-category-card__description {
    color: #5f6368;
}

.help-section {
    padding: 60px 0;
}

.help-section:nth-child(even) {
    background-color: #f5f7fa;
}

.help-section__header {
    text-align: center;
    margin-bottom: 40px;
}

.help-section__title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
}

.help-section__subtitle {
    font-size: 1.1rem;
    color: #5f6368;
}

.help-articles {
    max-width: 800px;
    margin: 0 auto;
}

.help-article {
    margin-bottom: 40px;
}

.help-article__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #202124;
}

.help-article__content {
    color: #5f6368;
}

.help-article__content p,
.help-article__content ol,
.help-article__content ul {
    margin-bottom: 15px;
}

.help-article__content ol,
.help-article__content ul {
    padding-left: 20px;
}

.help-article__content li {
    margin-bottom: 8px;
}

.help-article__content pre {
    background-color: #f5f7fa;
    padding: 15px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 15px 0;
}

.help-article__content code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
}

.help-contact {
    padding: 80px 0;
    background-color: #1a73e8;
    color: white;
}

.help-contact__inner {
    display: flex;
    gap: 40px;
}

.help-contact__content {
    flex: 1;
}

.help-contact__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.help-contact__description {
    margin-bottom: 30px;
    opacity: 0.9;
}

.help-contact__methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.help-contact__method {
    display: flex;
    gap: 15px;
    align-items: center;
}

.help-contact__method-icon {
    flex-shrink: 0;
}

.help-contact__method-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.help-contact__method-info {
    opacity: 0.8;
}

.help-contact__form {
    flex: 1;
    max-width: 500px;
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.help-contact__form-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #202124;
}

.help-contact__form-group {
    margin-bottom: 20px;
}

.help-contact__form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #5f6368;
}

.help-contact__form-group input,
.help-contact__form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    font-size: 1rem;
}

.help-contact__form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 资讯列表页面特定样式 */
.news-hero {
    padding: 80px 0;
    background-color: #f5f7fa;
    text-align: center;
}

.news-hero__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #202124;
}

.news-hero__description {
    font-size: 1.1rem;
    color: #5f6368;
}

.news-filter {
    padding: 30px 0;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.news-filter__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.news-filter__categories {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.news-filter__category {
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
    color: #5f6368;
    background-color: #f1f3f4;
    transition: all 0.3s ease;
}

.news-filter__category.active,
.news-filter__category:hover {
    background-color: #1a73e8;
    color: white;
}

.news-filter__search {
    display: flex;
}

.news-filter__input {
    padding: 10px 15px;
    border: 1px solid #dadce0;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

.news-filter__button {
    padding: 10px 15px;
    background-color: #1a73e8;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

.news-list {
    padding: 60px 0;
}

.newsletter {
    padding: 60px 0;
    background-color: #1a73e8;
    color: white;
    text-align: center;
}

.newsletter__inner {
    max-width: 600px;
    margin: 0 auto;
}

.newsletter__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.newsletter__description {
    margin-bottom: 30px;
    opacity: 0.9;
}

.newsletter__form {
    display: flex;
}

.newsletter__input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

/* 资讯详情页面特定样式 */
.article {
    padding: 60px 0;
}

.article__inner {
    display: flex;
    gap: 40px;
}

.article__main {
    flex: 2;
}

.article__sidebar {
    flex: 1;
}

.article__header {
    margin-bottom: 30px;
}

.article__title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #202124;
}

.article__meta {
    display: flex;
    gap: 15px;
    color: #5f6368;
    font-size: 0.9rem;
}

.article__featured-image {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 30px;
}

.article__lead {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 30px;
    color: #202124;
}

.article__subtitle {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 30px 0 20px;
    color: #202124;
}

.article__subsubtitle {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 25px 0 15px;
    color: #202124;
}

.article__list {
    margin-bottom: 20px;
}

.article__list li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.article__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1a73e8;
}

.article__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin: 40px 0;
}

.article__tags-label {
    font-weight: 500;
}

.article__tag {
    padding: 6px 12px;
    background-color: #f1f3f4;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.article__tag:hover {
    background-color: #1a73e8;
    color: white;
}

.article__share {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 40px 0;
}

.article__share-label {
    font-weight: 500;
}

.article__share-link img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.article__share-link:hover img {
    transform: scale(1.1);
}

.article__comments {
    margin-top: 60px;
}

.article__comments-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 30px;
    color: #202124;
}

.article__comment-form {
    background-color: #f5f7fa;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 40px;
}

.article__comment-form-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #202124;
}

.article__comment-form-group {
    margin-bottom: 15px;
}

.article__comment-form-input,
.article__comment-form-textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    font-size: 1rem;
}

.article__comment-form-textarea {
    resize: vertical;
    min-height: 120px;
}

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

.article__comment {
    display: flex;
    gap: 20px;
}

.article__comment-avatar {
    flex-shrink: 0;
}

.article__comment-avatar img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.article__comment-content {
    flex: 1;
}

.article__comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.article__comment-author {
    font-weight: 600;
    color: #202124;
}

.article__comment-date {
    font-size: 0.9rem;
    color: #5f6368;
}

.article__comment-text {
    color: #5f6368;
    margin-bottom: 10px;
}

.article__comment-reply {
    background: none;
    border: none;
    color: #1a73e8;
    font-weight: 500;
    cursor: pointer;
    padding: 0;
}

.article__comment-replies {
    margin-top: 20px;
    padding-left: 40px;
    border-left: 2px solid #f1f3f4;
}

.article__load-more {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #f5f7fa;
    border: none;
    border-radius: 4px;
    color: #1a73e8;
    font-weight: 500;
    cursor: pointer;
    margin-top: 30px;
    transition: background-color 0.3s ease;
}

.article__load-more:hover {
    background-color: #e8f0fe;
}

.article__sidebar-widget {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.article__sidebar-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #202124;
}

.article__sidebar-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.article__sidebar-item {
    display: flex;
    gap: 15px;
}

.article__sidebar-thumb {
    width: 100px;
    height: 100px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.article__sidebar-item-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #202124;
}

.article__sidebar-item-date {
    font-size: 0.9rem;
    color: #5f6368;
}

.article__sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.article__sidebar-tag {
    padding: 6px 12px;
    background-color: #f1f3f4;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.article__sidebar-tag:hover {
    background-color: #1a73e8;
    color: white;
}

.article__sidebar-subscribe-text {
    color: #5f6368;
    margin-bottom: 15px;
}

.article__sidebar-subscribe-form {
    display: flex;
}

.article__sidebar-subscribe-input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #dadce0;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

/* 下载页面特定样式 */
.download-hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
}

.download-hero__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.download-hero__content {
    flex: 1;
    max-width: 600px;
}

.download-hero__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #202124;
}

.download-hero__description {
    font-size: 1.1rem;
    color: #5f6368;
    margin-bottom: 30px;
}

.download-hero__stats {
    display: flex;
    gap: 30px;
}

.download-hero__stat {
    text-align: center;
}

.download-hero__stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a73e8;
    margin-bottom: 5px;
}

.download-hero__stat-text {
    font-size: 0.9rem;
    color: #5f6368;
}

.download-hero__image {
    flex: 1;
    max-width: 600px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.download-options {
    padding: 80px 0;
}

.download-options__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.download-option-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-option-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.download-option-card__icon {
    margin-bottom: 20px;
}

.download-option-card__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
}

.download-option-card__description {
    color: #5f6368;
    margin-bottom: 20px;
}

.download-option-card__buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.download-option-card__button {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
}

.download-option-card__button-text {
    font-weight: 500;
}

.download-option-card__button-size {
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-option-card__link {
    color: #1a73e8;
    font-size: 0.9rem;
    font-weight: 500;
}

.download-options__other {
    max-width: 800px;
    margin: 0 auto;
    padding: 30px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.download-options__other-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #202124;
    text-align: center;
}

.download-options__other-options {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.download-options__other-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background-color: #f5f7fa;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.download-options__other-option:hover {
    background-color: #e8f0fe;
    color: #1a73e8;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .article__inner {
        flex-direction: column;
    }
    
    .help-contact__inner {
        flex-direction: column;
    }
    
    .help-contact__form {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .header__inner {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav__list {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero__inner,
    .download-cta__inner,
    .download-hero__inner {
        flex-direction: column;
        text-align: center;
    }
    
    .hero__buttons,
    .download-cta__buttons {
        justify-content: center;
    }
    
    .hero__stats,
    .download-hero__stats {
        justify-content: center;
    }
    
    .news-filter__inner {
        flex-direction: column;
        gap: 20px;
    }
    
    .news-filter__categories {
        justify-content: center;
    }
    
    .news-filter__search {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero__title,
    .download-hero__title {
        font-size: 2rem;
    }
    
    .workflow__step {
        flex-direction: column;
    }
    
    .workflow__step-number {
        margin-bottom: 15px;
    }
    
    .article__meta {
        flex-wrap: wrap;
    }
    
    .article__comment {
        flex-direction: column;
    }
    
    .article__comment-replies {
        padding-left: 20px;
    }
}
/* 下载卡片样式 */
.download-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.download-card__icon {
    margin-bottom: 20px;
    text-align: center;
}

.download-card__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #202124;
    text-align: center;
}

.download-card__description {
    color: #5f6368;
    margin-bottom: 15px;
    text-align: center;
}

.download-card__meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: #5f6368;
}

.download-card__buttons {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.download-card__link {
    color: #1a73e8;
    font-size: 0.9rem;
    text-align: center;
    font-weight: 500;
}

/* 系统要求部分 */
.requirements {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.requirements__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.requirement-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.requirement-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #202124;
    text-align: center;
}

.requirement-card__list {
    color: #5f6368;
}

.requirement-card__list li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.requirement-card__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1a73e8;
}

/* 常见问题部分 */
.faq {
    padding: 80px 0;
}

.faq__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.faq-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.faq-card__title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #202124;
}

.faq-card__content {
    color: #5f6368;
}