* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --warm-orange: #FF8A3D;
    --deep-orange: #E67225;
    --light-orange: #FFF3EB;
    --cream: #FFFBF7;
    --warm-brown: #5A3E2B;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #999999;
    --border: #FFE5D0;
    --white: #FFFFFF;
    --success: #52C41A;
    --shadow-sm: 0 2px 8px rgba(255, 138, 61, 0.08);
    --shadow: 0 4px 16px rgba(255, 138, 61, 0.1);
    --shadow-lg: 0 8px 24px rgba(255, 138, 61, 0.12);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--cream);
    font-size: 16px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

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

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

/* 顶部公告 */
.top-bar {
    background: linear-gradient(90deg, var(--warm-orange), var(--deep-orange));
    color: white;
    font-size: 14px;
    padding: 8px 0;
    text-align: center;
}

.top-bar a {
    color: white;
    font-weight: 500;
    text-decoration: underline;
}

/* 导航 */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 22px;
    color: var(--warm-brown);
}

.logo-icon {
    font-size: 28px;
}

.main-nav {
    display: flex;
    gap: 32px;
}

.nav-item {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-item:hover, .nav-item.active {
    color: var(--warm-orange);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--warm-orange);
    border-radius: 2px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.call-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--light-orange);
    color: var(--deep-orange);
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 14px;
}

.call-btn:hover {
    background: var(--warm-orange);
    color: white;
}

.menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-btn span {
    width: 24px;
    height: 3px;
    background: var(--warm-brown);
    border-radius: 2px;
    transition: 0.3s;
}

.menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -8px);
}

/* 移动端菜单 */
.mobile-nav {
    position: fixed;
    top: 108px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px;
    box-shadow: var(--shadow);
    transform: translateY(-150%);
    opacity: 0;
    transition: 0.3s;
    z-index: 99;
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-item {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border);
}

.mobile-item:last-child {
    border-bottom: none;
}

/* 区块通用 */
.section {
    padding: 60px 0;
}

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

.section-title-wrap h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 12px;
}

.section-title-wrap p {
    font-size: 16px;
    color: var(--text-gray);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 15px;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 14px;
}

.btn-primary {
    background: var(--warm-orange);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 138, 61, 0.3);
}

.btn-primary:hover {
    background: var(--deep-orange);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 138, 61, 0.4);
}

.btn-warm {
    background: var(--white);
    color: var(--warm-orange);
    border: 2px solid var(--warm-orange);
}

.btn-warm:hover {
    background: var(--light-orange);
}

.btn-outline {
    background: transparent;
    color: var(--warm-orange);
    border: 2px solid var(--warm-orange);
}

.btn-outline:hover {
    background: var(--light-orange);
}

.btn-block {
    width: 100%;
}

/* Hero区域 */
.hero {
    padding: 60px 0 80px;
    background: linear-gradient(180deg, var(--light-orange) 0%, var(--cream) 100%);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.hero-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--white);
    color: var(--warm-orange);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.hero-text h1 {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--warm-brown);
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 17px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--text-gray);
    font-weight: 500;
}

.hero-banner-wrap {
    position: relative;
}

.hero-banner {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.family-badge {
    position: absolute;
    bottom: -16px;
    left: -16px;
    padding: 12px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 700;
    color: var(--warm-orange);
    box-shadow: var(--shadow);
}

/* 分类入口 */
.categories {
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

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

.category-card {
    background: var(--white);
    padding: 28px 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-6px);
    border-color: var(--warm-orange);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.category-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 8px;
}

.category-card p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.5;
}

/* 平台列表 */
.platforms-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.platform-item {
    display: grid;
    grid-template-columns: 140px 1fr auto;
    gap: 24px;
    align-items: center;
    padding: 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border-left: 4px solid var(--warm-orange);
}

.platform-item:hover {
    box-shadow: var(--shadow);
    transform: translateX(4px);
}

.platform-logo {
    height: 80px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    color: white;
}

.platform-logo.tencent {
    background: linear-gradient(135deg, #FF8A3D, #FF6B00);
}

.platform-logo.iqiyi {
    background: linear-gradient(135deg, #00BE06, #009B05);
}

.platform-logo.youku {
    background: linear-gradient(135deg, #1DB5F8, #0E8ED1);
}

.platform-logo.mgtv {
    background: linear-gradient(135deg, #FF5555, #E03A3A);
}

.platform-logo.bilibili {
    background: linear-gradient(135deg, #FB7299, #E65C83);
}

.platform-info h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 8px;
}

.platform-info p {
    color: var(--text-gray);
    margin-bottom: 16px;
    font-size: 15px;
}

.device-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.device-tag {
    padding: 6px 14px;
    background: var(--light-orange);
    color: var(--deep-orange);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

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

/* 下载中心 */
.downloads {
    background: var(--light-orange);
}

.device-sections {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.device-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.device-section:hover {
    box-shadow: var(--shadow);
}

.device-head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px dashed var(--border);
}

.device-icon-lg {
    font-size: 48px;
}

.device-head h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 4px;
}

.device-head p {
    font-size: 14px;
    color: var(--text-gray);
}

.info-list {
    margin-bottom: 24px;
}

.info-list p {
    padding: 8px 0;
    font-size: 15px;
    color: var(--text-gray);
}

/* 安装步骤 */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
}

.step {
    background: var(--white);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.step-num {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--warm-orange), var(--deep-orange));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 12px;
}

.step-content p {
    color: var(--text-gray);
    font-size: 15px;
    line-height: 1.7;
}

.step-arrow {
    position: absolute;
    right: -30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 30px;
    color: var(--warm-orange);
    font-weight: 700;
}

.step:last-child .step-arrow {
    display: none;
}

/* 功能介绍 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--white);
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    border-color: var(--warm-orange);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.feature-emoji {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* 安全提示 */
.safety-card {
    background: linear-gradient(135deg, var(--white), var(--light-orange));
    border-radius: var(--radius-xl);
    padding: 48px;
    border: 2px solid var(--warm-orange);
}

.safety-card h2 {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 36px;
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.tip {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius);
}

.tip-icon {
    font-size: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}

.tip p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* 资讯列表 硬性规范 */
ul.article-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    box-sizing: border-box;
}

ul.article-cards > li.article-card {
    min-width: 0;
    width: auto;
    max-width: none;
    margin: 0;
    float: none;
    box-sizing: border-box;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

ul.article-cards > li.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.article-card .card-thumb {
    width: 100%;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.article-card .card-thumb img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .card-thumb img {
    transform: scale(1.05);
}

.article-card .card-body {
    padding: 20px;
}

.article-card .card-date {
    display: block;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.article-card .card-title {
    overflow-wrap: anywhere;
    font-size: 17px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card .card-summary {
    overflow-wrap: anywhere;
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border);
    transition: all 0.3s ease;
}

.faq-item.active {
    border-color: var(--warm-orange);
    box-shadow: var(--shadow-sm);
}

.faq-q {
    padding: 22px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-q h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--warm-brown);
}

.faq-plus {
    width: 32px;
    height: 32px;
    background: var(--light-orange);
    color: var(--warm-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    flex-shrink: 0;
    transition: 0.3s;
}

.faq-item.active .faq-plus {
    background: var(--warm-orange);
    color: white;
    transform: rotate(45deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-a {
    max-height: 300px;
}

.faq-a p {
    padding: 0 28px 22px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* 关于我们 */
.about-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-sm);
}

.about-card h2 {
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 20px;
}

.about-text {
    max-width: 800px;
    margin: 0 auto 32px;
    text-align: center;
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
}

.service-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.sp-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    background: var(--light-orange);
    border-radius: var(--radius);
    font-size: 15px;
    color: var(--warm-brown);
    font-weight: 500;
}

.sp-item span {
    font-size: 24px;
}

.disclaimer {
    padding: 24px;
    background: #FFF8E6;
    border-radius: var(--radius);
    border-left: 4px solid #FFC107;
}

.disclaimer p {
    font-size: 14px;
    color: #8B6914;
    line-height: 1.7;
}

/* 联系方式 */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow);
}

.contact-info h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-gray);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.method {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 20px;
    background: var(--light-orange);
    border-radius: var(--radius);
}

.method-icon {
    width: 56px;
    height: 56px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}

.method h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 4px;
}

.method p {
    font-size: 14px;
    color: var(--text-gray);
}

.tip-box {
    padding: 16px;
    background: #E8F7E8;
    border-radius: var(--radius);
    border-left: 4px solid var(--success);
}

.tip-box p {
    font-size: 14px;
    color: #2B702B;
    line-height: 1.7;
}

.demo-form-wrap h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 8px;
}

.form-note {
    font-size: 13px;
    color: #FF4D4F;
    margin-bottom: 24px;
}

.demo-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.demo-form input,
.demo-form select,
.demo-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: 0.3s;
    background: var(--cream);
}

.demo-form input:focus,
.demo-form select:focus,
.demo-form textarea:focus {
    border-color: var(--warm-orange);
    background: var(--white);
}

/* 文章详情页 */
.article-section {
    padding: 40px 0 80px;
    background: var(--cream);
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.breadcrumb {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: var(--warm-orange);
}

.article-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--warm-brown);
    line-height: 1.4;
    margin-bottom: 16px;
}

.article-meta {
    margin-bottom: 28px;
}

.article-date {
    color: var(--text-light);
    font-size: 14px;
}

.article-cover-wrap {
    margin-bottom: 28px;
    border-radius: var(--radius);
    overflow: hidden;
}

.article-cover {
    width: 100%;
    display: block;
}

.article-summary {
    padding: 24px;
    background: var(--light-orange);
    border-radius: var(--radius);
    font-size: 16px;
    color: var(--warm-brown);
    line-height: 1.8;
    margin-bottom: 32px;
    border-left: 4px solid var(--warm-orange);
}

.article-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-dark);
}

.article-content p {
    margin-bottom: 20px;
}

.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--warm-brown);
    margin: 36px 0 20px;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--warm-brown);
    margin: 28px 0 16px;
}

.article-content img {
    max-width: 100%;
    border-radius: var(--radius);
    margin: 20px 0;
}

.article-content ul, .article-content ol {
    margin: 20px 0;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-footer {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.article-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tag {
    padding: 6px 16px;
    background: var(--light-orange);
    color: var(--deep-orange);
    border-radius: 20px;
    font-size: 14px;
}

.share-tip {
    color: var(--text-gray);
    font-size: 15px;
    text-align: center;
    padding: 20px;
    background: var(--cream);
    border-radius: var(--radius);
}

.related-nav {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.related-nav h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--warm-brown);
    margin-bottom: 20px;
}

.related-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.related-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    background: var(--cream);
    border-radius: var(--radius);
    font-size: 15px;
    color: var(--text-dark);
}

.related-link:hover {
    background: var(--light-orange);
    color: var(--deep-orange);
}

.article-cta {
    margin-top: 40px;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 页脚 */
.footer {
    background: var(--warm-brown);
    color: #E6D5C5;
    padding: 60px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.footer-brand p {
    line-height: 1.8;
    margin-bottom: 16px;
    font-size: 15px;
}

.footer-note {
    font-size: 14px;
    color: #B8A28D;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.link-group h4 {
    font-size: 17px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.link-group a {
    display: block;
    padding: 6px 0;
    color: #E6D5C5;
    font-size: 15px;
}

.link-group a:hover {
    color: var(--warm-orange);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 14px;
    color: #B8A28D;
}

.grouplinks {
    margin-top: 16px;
}

.grouplinks a {
    color: #B8A28D;
    margin: 0 8px;
    font-size: 13px;
}

.grouplinks a:hover {
    color: var(--warm-orange);
}

/* 响应式 */
@media (max-width: 992px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .steps {
        grid-template-columns: repeat(2, 1fr);
    }

    .step-arrow {
        display: none;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .safety-grid {
        grid-template-columns: 1fr;
    }

    .platform-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .platform-logo {
        width: 140px;
        margin: 0 auto;
    }

    .device-tags {
        justify-content: center;
    }

    .platform-btns {
        flex-direction: row;
        justify-content: center;
    }

    .device-sections {
        grid-template-columns: 1fr;
    }

    .service-points {
        grid-template-columns: 1fr;
    }

    .contact-card {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

    .call-btn span:not(svg) {
        display: none;
    }

    .call-btn {
        padding: 10px 14px;
    }

    .menu-btn {
        display: flex;
    }

    .hero-text h1 {
        font-size: 28px;
    }

    .section-title-wrap h2 {
        font-size: 24px;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-features {
        flex-direction: column;
        gap: 12px;
    }

    .family-badge {
        left: 50%;
        transform: translateX(-50%);
        bottom: -16px;
    }

    .safety-card, .about-card, .contact-card, .article-container {
        padding: 28px 20px;
    }

    .related-links {
        grid-template-columns: 1fr;
    }

    .article-cta {
        flex-direction: column;
    }

    .article-cta .btn {
        width: 100%;
    }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}