/* ==============================
   简约清爽蓝白风格样式
   配色：白色+蓝色主色调
   布局：顶部导航+卡片式布局
   ============================== */

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

:root {
    --primary: #1677ff;
    --primary-hover: #4096ff;
    --primary-light: #e6f4ff;
    --success: #52c41a;
    --warning: #faad14;
    --error: #ff4d4f;
    --text-1: #1f2329;
    --text-2: #4e5969;
    --text-3: #86909c;
    --text-4: #c9cdd4;
    --bg-1: #ffffff;
    --bg-2: #f7f8fa;
    --bg-3: #f2f3f5;
    --border: #e5e6eb;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-hover: 0 6px 20px rgba(22,119,255,0.12);
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-1);
    color: var(--text-1);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
    html {
        scroll-behavior: auto;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-2);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-2);
    max-width: 600px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 1.05rem;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(22,119,255,0.2);
}

.btn-secondary {
    background-color: var(--primary-light);
    color: var(--primary);
}

.btn-secondary:hover {
    background-color: #bae0ff;
}

.btn-outline {
    background-color: transparent;
    color: var(--text-2);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-text {
    background-color: transparent;
    color: var(--text-2);
    padding: 6px 12px;
}

.btn-text:hover {
    color: var(--primary);
    background-color: var(--primary-light);
}

/* 顶部导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: box-shadow 0.2s ease;
}

.site-header.scrolled {
    box-shadow: var(--shadow);
}

.header-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.main-nav {
    display: none;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 14px;
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background-color: var(--primary-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-phone {
    display: none;
    align-items: center;
    gap: 6px;
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.9rem;
}

.demo-buttons {
    display: none;
    gap: 8px;
}

.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background-color: var(--text-1);
    border-radius: 2px;
    transition: all 0.2s ease;
}

@media (min-width: 1024px) {
    .main-nav {
        display: flex;
    }
    .header-phone,
    .demo-buttons {
        display: flex;
    }
    .menu-toggle {
        display: none;
    }
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    inset: 0;
    background-color: white;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-inner {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 24px;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.mobile-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.mobile-close {
    font-size: 2rem;
    background: none;
    border: none;
    color: var(--text-2);
    cursor: pointer;
    line-height: 1;
}

.mobile-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-link {
    padding: 14px 0;
    color: var(--text-1);
    text-decoration: none;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border);
}

/* 主内容 */
.site-main {
    padding-top: 64px;
}

/* Hero区域 */
.hero {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--primary-light) 0%, white 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.hero-title {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-1);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-2);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.hero-contact {
    font-size: 0.95rem;
    color: var(--text-2);
}

.phone-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.hero-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
}

@media (min-width: 992px) {
    .hero {
        padding: 100px 0;
    }
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    .hero-title {
        font-size: 2.8rem;
    }
}

/* 快速入口 */
.quick-access {
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    background-color: white;
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.quick-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 8px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-2);
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.quick-item:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

.quick-icon {
    font-size: 1.8rem;
}

@media (min-width: 768px) {
    .quick-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* 平台列表 */
.platform-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.platform-row {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 24px;
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.platform-row:hover {
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.platform-info {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    flex: 1;
}

.platform-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 0.9rem;
    text-align: center;
    flex-shrink: 0;
}

.logo-tencent { background-color: #0066ff; }
.logo-iqiyi { background-color: #00be06; }
.logo-youku { background-color: #18a0fb; }
.logo-mgtv { background-color: #ff5000; }
.logo-bilibili { background-color: #fb7299; }
.logo-other { background-color: var(--text-3); }

.platform-desc h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.platform-desc p {
    color: var(--text-2);
    font-size: 0.95rem;
    margin-bottom: 8px;
    line-height: 1.7;
}

.platform-meta {
    font-size: 0.85rem;
    color: var(--text-3);
}

.platform-actions {
    display: flex;
    gap: 8px;
    align-self: flex-start;
}

@media (min-width: 768px) {
    .platform-row {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    .platform-actions {
        flex-shrink: 0;
    }
}

/* 设备分类 */
.device-categories {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.device-category {
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.2s ease;
}

.device-category:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.device-header {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
}

.device-icon {
    font-size: 2rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-light);
    border-radius: var(--radius);
}

.device-header h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.device-header p {
    font-size: 0.9rem;
    color: var(--text-3);
}

.device-content p {
    color: var(--text-2);
    font-size: 0.95rem;
    margin-bottom: 8px;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .device-categories {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 功能介绍 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.feature-item {
    padding: 24px;
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.feature-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-item h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--text-2);
    line-height: 1.7;
}

/* 安装流程 */
.steps-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    position: relative;
    padding: 24px;
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.step-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.95rem;
    color: var(--text-2);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .steps-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 安全提示 */
.safety-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e6f7ff 100%);
    border: 1px solid #bae0ff;
    border-radius: var(--radius-lg);
    padding: 40px;
}

.safety-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 32px;
    color: var(--text-1);
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.tip-icon {
    flex-shrink: 0;
    color: var(--success);
    font-size: 1.1rem;
}

.tip-item p {
    font-size: 0.95rem;
    color: var(--text-2);
    line-height: 1.6;
}

/* 资讯列表基础规则 */
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-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.2s ease;
}

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

.article-card .card-thumb {
    width: 100%;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.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: 16px;
}

.article-card .card-title {
    overflow-wrap: anywhere;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-1);
    text-decoration: none;
    display: block;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card .card-title:hover {
    color: var(--primary);
}

.article-card .card-date {
    display: block;
    font-size: 0.85rem;
    color: var(--text-3);
    margin-bottom: 8px;
}

.article-card .card-summary {
    overflow-wrap: anywhere;
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.faq-question:hover {
    background-color: var(--bg-2);
}

.faq-question h4 {
    font-size: 1rem;
    font-weight: 500;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-3);
    transition: transform 0.2s ease;
}

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

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

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

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-2);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* 关于我们 */
.about-container {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.05rem;
    color: var(--text-2);
    line-height: 1.8;
    text-align: center;
    margin-bottom: 40px;
}

.service-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.service-icon {
    font-size: 1.5rem;
}

.service-item span:last-child {
    font-size: 0.95rem;
    color: var(--text-2);
}

.disclaimer-box {
    padding: 20px;
    background-color: #fff7e6;
    border: 1px solid #ffd591;
    border-radius: var(--radius);
}

.disclaimer-box p {
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.7;
}

.disclaimer-box strong {
    color: var(--text-1);
}

/* 联系方式 */
.contact-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-desc {
    color: var(--text-2);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background-color: var(--bg-2);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.contact-card:hover {
    background-color: var(--primary-light);
}

.contact-card .contact-icon {
    font-size: 1.5rem;
}

.contact-card h4 {
    margin-bottom: 4px;
}

.contact-card p {
    color: var(--text-2);
    font-size: 0.95rem;
    margin: 0;
}

.contact-form-wrap {
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.contact-form-wrap h3 {
    margin-bottom: 8px;
}

.form-notice {
    font-size: 0.85rem;
    color: var(--error);
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--text-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background-color: white;
    color: var(--text-1);
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(22,119,255,0.1);
}

@media (min-width: 768px) {
    .contact-wrap {
        grid-template-columns: 1fr 1fr;
    }
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* 页脚 */
.site-footer {
    background-color: var(--text-1);
    color: white;
    padding: 60px 0 24px;
}

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

.footer-logo {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.footer-desc {
    color: var(--text-4);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.footer-note {
    font-size: 0.85rem;
    color: var(--text-3);
}

.footer-nav-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1rem;
    color: white;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--text-4);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-bottom p {
    color: var(--text-3);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-links a {
    color: var(--text-4);
    text-decoration: none;
    font-size: 0.85rem;
}

@media (min-width: 768px) {
    .footer-main {
        grid-template-columns: 1.5fr 2fr;
    }
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

/* 文章详情页 */
.article-page {
    padding: 40px 0 80px;
}

.article-wrapper {
    max-width: 780px;
    margin: 0 auto;
}

.article-breadcrumb {
    margin-bottom: 24px;
    font-size: 0.9rem;
    color: var(--text-3);
}

.article-breadcrumb a {
    color: var(--text-2);
    text-decoration: none;
}

.article-breadcrumb a:hover {
    color: var(--primary);
}

.article-title {
    font-size: 2rem;
    line-height: 1.3;
    margin-bottom: 16px;
}

.article-lead {
    font-size: 1.1rem;
    color: var(--text-2);
    line-height: 1.8;
    padding: 20px;
    background-color: var(--bg-2);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 16px;
}

.article-meta {
    font-size: 0.9rem;
    color: var(--text-3);
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.article-cover {
    margin-bottom: 32px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.article-body {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-1);
    margin-bottom: 48px;
}

.article-body h2,
.article-body h3,
.article-body h4 {
    margin: 32px 0 16px;
}

.article-body p {
    margin-bottom: 16px;
    color: var(--text-2);
}

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

.article-body ul,
.article-body ol {
    margin: 16px 0;
    padding-left: 24px;
    color: var(--text-2);
}

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

.related-guides {
    margin-bottom: 48px;
    padding: 32px;
    background-color: var(--bg-2);
    border-radius: var(--radius-lg);
}

.related-guides h3 {
    margin-bottom: 20px;
}

.guides-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.guide-link {
    padding: 8px 16px;
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.guide-link:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.article-cta-box {
    text-align: center;
    padding: 40px;
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
}

.article-cta-box h3 {
    margin-bottom: 12px;
}

.article-cta-box p {
    color: var(--text-2);
    margin-bottom: 24px;
}

.cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}