/* 联想应用商店风格 - 现代、扁平、高转化 */
:root {
    --primary-color: #1a2b4c; /* 科技深蓝 */
    --accent-color: #00c853; /* 扑克绿/下载按钮色 */
    --accent-hover: #009624;
    --text-main: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text-main); background: var(--bg-light); line-height: 1.6; }
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
img { max-width: 100%; height: auto; display: block; }
.z5c2edcontainer { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 头部导航 */
.z5c2edheader { background: var(--white); box-shadow: 0 2px 8px rgba(0,0,0,0.04); position: sticky; top: 0; z-index: 1000; }
.z5c2edheader_inner { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.z5c2edlogo { font-size: 22px; font-weight: bold; color: var(--primary-color); }
.z5c2ednav { display: flex; gap: 24px; }
.z5c2ednav a { color: var(--text-light); font-size: 15px; font-weight: 500; }
.z5c2ednav a:hover, .z5c2ednav a.current { color: var(--primary-color); }
.z5c2edheader_btn { background: var(--accent-color); color: var(--white) !important; padding: 8px 20px; border-radius: 20px; font-size: 14px; font-weight: bold; }
.z5c2edheader_btn:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* 首页首屏 Hero */
.z5c2edhero { background: linear-gradient(135deg, #1a2b4c 0%, #2c3e50 100%); color: var(--white); padding: 80px 0; overflow: hidden; }
.z5c2edhero_inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.z5c2edhero_text { flex: 1; }
.z5c2edhero_text h1 { font-size: 42px; margin-bottom: 16px; line-height: 1.2; }
.z5c2edhero_text p { font-size: 18px; color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 500px; }
.z5c2eddownload_group { display: flex; gap: 16px; flex-wrap: wrap; }
.z5c2edbtn_dl { display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px; border-radius: 8px; font-size: 16px; font-weight: bold; transition: all 0.3s; }
.z5c2edbtn_ios { background: var(--white); color: var(--primary-color); }
.z5c2edbtn_ios:hover { background: #f0f0f0; transform: translateY(-2px); box-shadow: 0 8px 16px rgba(255,255,255,0.2); }
.z5c2edbtn_android { background: var(--accent-color); color: var(--white); border: 1px solid var(--accent-color); }
.z5c2edbtn_android:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 16px rgba(0,200,83,0.3); }
.z5c2edhero_img { flex: 1; text-align: right; }
.z5c2edmockup { max-width: 300px; filter: drop-shadow(0 20px 30px rgba(0,0,0,0.3)); }

/* 核心特色 */
.z5c2edfeatures { padding: 80px 0; background: var(--white); }
.z5c2edsection_title { text-align: center; margin-bottom: 48px; }
.z5c2edsection_title h2 { font-size: 32px; color: var(--primary-color); margin-bottom: 12px; }
.z5c2edsection_title p { color: var(--text-light); font-size: 16px; }
.z5c2edgrid_4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.z5c2edfeature_card { text-align: center; padding: 30px 20px; border-radius: 12px; transition: all 0.3s; }
.z5c2edfeature_card:hover { background: var(--bg-light); transform: translateY(-5px); box-shadow: var(--shadow); }
.z5c2edicon { width: 60px; height: 60px; background: #e8f5e9; color: var(--accent-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 24px; font-weight: bold; }
.z5c2edfeature_card h3 { font-size: 20px; margin-bottom: 12px; color: var(--primary-color); }
.z5c2edfeature_card p { color: var(--text-light); font-size: 14px; line-height: 1.8; }

/* 资讯列表 */
.z5c2ednews { padding: 80px 0; }
.z5c2ednews_list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.z5c2ednews_item { background: var(--white); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); transition: all 0.3s; }
.z5c2ednews_item:hover { transform: translateY(-5px); }
.z5c2ednews_item img { width: 100%; height: 180px; object-fit: cover; }
.z5c2ednews_content { padding: 20px; }
.z5c2ednews_content h3 { font-size: 18px; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.z5c2ednews_content h3 a:hover { color: var(--accent-color); }
.z5c2ednews_meta { font-size: 13px; color: #999; margin-bottom: 10px; }
.z5c2ednews_content p { font-size: 14px; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 列表页与文章页通用 */
.z5c2edbreadcrumb { padding: 20px 0; font-size: 14px; color: #999; }
.z5c2edbreadcrumb a { color: #666; }
.z5c2edbreadcrumb a:hover { color: var(--accent-color); }
.z5c2edpage_layout { display: flex; gap: 30px; padding-bottom: 60px; }
.z5c2edmain_content { flex: 1; background: var(--white); padding: 30px; border-radius: 12px; box-shadow: var(--shadow); }
.z5c2edsidebar { width: 300px; flex-shrink: 0; }
.z5c2edsidebar_card { background: var(--white); border-radius: 12px; padding: 24px; box-shadow: var(--shadow); margin-bottom: 24px; position: sticky; top: 84px; }
.z5c2edsidebar_card h3 { font-size: 18px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid #eee; }
.z5c2edsidebar_dl { display: block; background: var(--accent-color); color: var(--white); text-align: center; padding: 12px; border-radius: 8px; font-weight: bold; margin-bottom: 16px; }
.z5c2edsidebar_dl:hover { background: var(--accent-hover); }

/* 列表样式 */
.z5c2edlist_item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px dashed #eee; }
.z5c2edlist_item:last-child { border-bottom: none; }
.z5c2edlist_img { width: 180px; height: 120px; flex-shrink: 0; border-radius: 8px; overflow: hidden; }
.z5c2edlist_img img { width: 100%; height: 100%; object-fit: cover; }
.z5c2edlist_info h2 { font-size: 18px; margin-bottom: 8px; }
.z5c2edlist_info h2 a:hover { color: var(--accent-color); }
.z5c2edlist_info p { font-size: 14px; color: #666; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.z5c2edlist_info span { font-size: 12px; color: #999; }

/* 分页 */
.z5c2edpagination { margin-top: 30px; text-align: center; display: flex; justify-content: center; gap: 8px; }
.z5c2edpagination a { padding: 8px 14px; border: 1px solid #ddd; border-radius: 4px; color: #666; font-size: 14px; }
.z5c2edpagination a:hover, .z5c2edpagination a.current { background: var(--accent-color); color: var(--white); border-color: var(--accent-color); }

/* 文章详情 */
.z5c2edarticle_header { margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid #eee; }
.z5c2edarticle_header h1 { font-size: 26px; line-height: 1.4; margin-bottom: 12px; }
.z5c2edarticle_meta { font-size: 13px; color: #999; display: flex; gap: 16px; }
.z5c2edarticle_body { font-size: 16px; line-height: 1.8; color: #444; }
.z5c2edarticle_body p { margin-bottom: 16px; }
.z5c2edarticle_body img { margin: 20px auto; border-radius: 8px; }
.z5c2edprenext { margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.z5c2edprenext a { color: var(--accent-color); }
.z5c2edtags { margin-top: 20px; display: flex; gap: 10px; flex-wrap: wrap; }
.z5c2edtags a { background: #f0f2f5; padding: 4px 12px; border-radius: 20px; font-size: 13px; color: #666; }
.z5c2edtags a:hover { background: var(--accent-color); color: var(--white); }

/* 底部 */
.z5c2edfooter { background: #111; color: #888; padding: 40px 0; text-align: center; font-size: 14px; line-height: 2; }
.z5c2edfooter a { color: #aaa; margin: 0 10px; }
.z5c2edfooter a:hover { color: var(--white); }

/* 悬浮下载 */
.z5c2edfixed_dl { position: fixed; bottom: 30px; right: 30px; z-index: 999; background: var(--accent-color); color: var(--white); width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0,200,83,0.4); font-size: 14px; font-weight: bold; transition: all 0.3s; }
.z5c2edfixed_dl:hover { transform: scale(1.1); background: var(--accent-hover); }

/* 响应式适配 */
@media (max-width: 992px) {
    .z5c2edgrid_4 { grid-template-columns: repeat(2, 1fr); }
    .z5c2ednews_list { grid-template-columns: repeat(2, 1fr); }
    .z5c2edpage_layout { flex-direction: column; }
    .z5c2edsidebar { width: 100%; }
    .z5c2edsidebar-card { position: static; }
}
@media (max-width: 768px) {
    .z5c2ednav { display: none; }
    .z5c2edhero_inner { flex-direction: column; text-align: center; }
    .z5c2edhero_text p { margin: 0 auto 32px; }
    .z5c2eddownload_group { justify-content: center; }
    .z5c2edhero_img { margin-top: 40px; }
    .z5c2edgrid_4 { grid-template-columns: 1fr; }
    .z5c2ednews_list { grid-template-columns: 1fr; }
    .z5c2edlist_item { flex-direction: column; }
    .z5c2edlist_img { width: 100%; height: 200px; }
}