/* === CSS变量与基础重置 === */
:root {
    --css365jz-primary: #1890ff;
    --css365jz-primary-hover: #096dd9;
    --css365jz-success: #52c41a;
    --css365jz-success-hover: #389e0d;
    --css365jz-bg: #f0f2f5;
    --css365jz-card-bg: #ffffff;
    --css365jz-text: #333333;
    --css365jz-text-light: #666666;
    --css365jz-border: #e8e8e8;
}
* { 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; background-color: var(--css365jz-bg); color: var(--css365jz-text); line-height: 1.6; }
a { text-decoration: none; color: inherit; transition: color 0.3s; }
img { max-width: 100%; height: auto; display: block; }
ul, li { list-style: none; }
.z4dd8ccontainer { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* === 头部导航 === */
.z4dd8cheader { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.06); position: sticky; top: 0; z-index: 1000; }
.z4dd8cheader_inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.z4dd8clogo { font-size: 22px; font-weight: bold; color: var(--css365jz-primary); display: flex; align-items: center; gap: 8px; }
.z4dd8cnav { display: flex; gap: 24px; }
.z4dd8cnav a { color: var(--css365jz-text); font-size: 15px; font-weight: 500; padding: 8px 0; position: relative; }
.z4dd8cnav a:hover, .z4dd8cnav a.current { color: var(--css365jz-primary); }
.z4dd8cnav a.current::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: var(--css365jz-primary); }
.z4dd8cmenu_toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--css365jz-text); }

/* === 首页 Hero 区 === */
.z4dd8chero { background: linear-gradient(135deg, #001529 0%, #003a70 100%); color: #fff; padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
.z4dd8chero::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle, rgba(24,144,255,0.1) 0%, transparent 70%); animation: z4dd8crotate 20s linear infinite; }
@keyframes z4dd8crotate { 100% { transform: rotate(360deg); } }
.z4dd8chero h1 { font-size: 36px; margin-bottom: 16px; position: relative; z-index: 1; }
.z4dd8chero p { font-size: 18px; color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; position: relative; z-index: 1; }
.z4dd8chero_btns { display: flex; gap: 16px; justify-content: center; position: relative; z-index: 1; }

/* === 按钮样式 === */
.z4dd8cbtn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; border-radius: 6px; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.3s; border: none; }
.z4dd8cbtn_primary { background: var(--css365jz-primary); color: #fff; }
.z4dd8cbtn_primary:hover { background: var(--css365jz-primary-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(24,144,255,0.4); }
.z4dd8cbtn_success { background: var(--css365jz-success); color: #fff; }
.z4dd8cbtn_success:hover { background: var(--css365jz-success-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(82,196,26,0.4); }
.z4dd8cbtn_outline { background: transparent; border: 1px solid rgba(255,255,255,0.5); color: #fff; }
.z4dd8cbtn_outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

/* === 下载专区 === */
.z4dd8cdownload_section { background: #fff; padding: 60px 0; border-bottom: 1px solid var(--css365jz-border); }
.z4dd8cdownload_box { display: flex; align-items: center; justify-content: space-between; background: linear-gradient(135deg, #f6ffed 0%, #e6f7ff 100%); border: 1px solid #b7eb8f; border-radius: 12px; padding: 40px; }
.z4dd8cdownload_info h2 { font-size: 24px; color: var(--css365jz-text); margin-bottom: 12px; }
.z4dd8cdownload_info p { color: var(--css365jz-text-light); margin-bottom: 8px; font-size: 14px; }
.z4dd8cdownload_info span { color: var(--css365jz-primary); font-weight: bold; }
.z4dd8cdownload_actions { display: flex; gap: 16px; }

/* === 通用 Section === */
.z4dd8csection { padding: 60px 0; }
.z4dd8csection_title { text-align: center; font-size: 28px; margin-bottom: 12px; color: var(--css365jz-text); }
.z4dd8csection_desc { text-align: center; color: var(--css365jz-text-light); margin-bottom: 40px; font-size: 16px; }

/* === 核心功能 Grid === */
.z4dd8cfeature_grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.z4dd8cfeature_card { background: var(--css365jz-card-bg); border-radius: 8px; padding: 32px 24px; text-align: center; border: 1px solid var(--css365jz-border); transition: all 0.3s; }
.z4dd8cfeature_card:hover { transform: translateY(-8px); box-shadow: 0 12px 24px rgba(0,0,0,0.08); border-color: var(--css365jz-primary); }
.z4dd8cfeature_icon { width: 64px; height: 64px; margin: 0 auto 20px; background: #e6f7ff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 28px; color: var(--css365jz-primary); }
.z4dd8cfeature_card h3 { font-size: 18px; margin-bottom: 12px; color: var(--css365jz-text); }
.z4dd8cfeature_card p { font-size: 14px; color: var(--css365jz-text-light); line-height: 1.6; }

/* === 特色功能 DL === */
.z4dd8cspec_list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.z4dd8cspec_item { display: flex; gap: 16px; background: #fff; padding: 24px; border-radius: 8px; border: 1px solid var(--css365jz-border); }
.z4dd8cspec_item dt { font-size: 16px; font-weight: 600; color: var(--css365jz-primary); margin-bottom: 8px; }
.z4dd8cspec_item dd { font-size: 14px; color: var(--css365jz-text-light); line-height: 1.6; }

/* === 推荐阅读列表 === */
.z4dd8carticle_grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.z4dd8carticle_card { background: #fff; border-radius: 8px; overflow: hidden; border: 1px solid var(--css365jz-border); transition: all 0.3s; }
.z4dd8carticle_card:hover { box-shadow: 0 8px 16px rgba(0,0,0,0.06); }
.z4dd8carticle_card img { width: 100%; height: 160px; object-fit: cover; }
.z4dd8carticle_card_body { padding: 20px; }
.z4dd8carticle_card h3 { font-size: 16px; margin-bottom: 10px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.z4dd8carticle_card h3 a:hover { color: var(--css365jz-primary); }
.z4dd8carticle_card p { font-size: 13px; color: var(--css365jz-text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.z4dd8carticle_date { font-size: 12px; color: #999; }

/* === 列表页 & 文章页 === */
.z4dd8cbreadcrumb { padding: 16px 0; font-size: 14px; color: var(--css365jz-text-light); margin-bottom: 24px; border-bottom: 1px solid var(--css365jz-border); }
.z4dd8cbreadcrumb a { color: var(--css365jz-primary); }
.z4dd8cbreadcrumb span { margin: 0 8px; }
.z4dd8cpage_header { margin-bottom: 32px; }
.z4dd8cpage_title { font-size: 24px; color: var(--css365jz-text); margin-bottom: 12px; }
.z4dd8clist_grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 40px; }
.z4dd8clist_item { background: #fff; padding: 24px; border-radius: 8px; border: 1px solid var(--css365jz-border); display: flex; gap: 20px; transition: all 0.3s; }
.z4dd8clist_item:hover { border-color: var(--css365jz-primary); box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.z4dd8clist_item img { width: 120px; height: 90px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.z4dd8clist_item h2 { font-size: 18px; margin-bottom: 8px; }
.z4dd8clist_item h2 a:hover { color: var(--css365jz-primary); }
.z4dd8clist_item p { font-size: 14px; color: var(--css365jz-text-light); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* === 文章详情 === */
.z4dd8carticle_body { background: #fff; padding: 40px; border-radius: 8px; border: 1px solid var(--css365jz-border); }
.z4dd8carticle_meta { display: flex; gap: 24px; font-size: 14px; color: var(--css365jz-text-light); margin-bottom: 32px; padding-bottom: 16px; border-bottom: 1px dashed var(--css365jz-border); }
.z4dd8carticle_meta a { color: var(--css365jz-primary); }
.z4dd8carticle_content { font-size: 16px; line-height: 1.8; color: #444; }
.z4dd8carticle_content h2, .z4dd8carticle_content h3 { margin: 24px 0 16px; color: var(--css365jz-text); }
.z4dd8carticle_content p { margin-bottom: 16px; }
.z4dd8carticle_content img { max-width: 100%; border-radius: 8px; margin: 16px 0; }
.z4dd8ctags { margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--css365jz-border); display: flex; flex-wrap: wrap; gap: 8px; }
.z4dd8ctags a { background: #f0f2f5; padding: 4px 12px; border-radius: 4px; font-size: 13px; color: var(--css365jz-text-light); transition: all 0.3s; }
.z4dd8ctags a:hover { background: var(--css365jz-primary); color: #fff; }
.z4dd8cprenext { margin-top: 24px; display: flex; justify-content: space-between; font-size: 14px; color: var(--css365jz-text-light); }
.z4dd8cprenext a { color: var(--css365jz-primary); }

/* === 分页 === */
.z4dd8cpagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.z4dd8cpagination a { padding: 8px 16px; background: #fff; border: 1px solid var(--css365jz-border); border-radius: 4px; font-size: 14px; color: var(--css365jz-text); transition: all 0.3s; }
.z4dd8cpagination a:hover, .z4dd8cpagination a.current { background: var(--css365jz-primary); color: #fff; border-color: var(--css365jz-primary); }

/* === 底部 === */
.z4dd8cfooter { background: #001529; color: rgba(255,255,255,0.65); padding: 40px 0; text-align: center; margin-top: 60px; }
.z4dd8cfooter_links { margin-bottom: 16px; display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.z4dd8cfooter_links a { color: rgba(255,255,255,0.65); font-size: 14px; }
.z4dd8cfooter_links a:hover { color: #fff; }
.z4dd8cfooter p { font-size: 13px; }

/* === 悬浮下载按钮 === */
.z4dd8cfloat_download { position: fixed; right: 24px; bottom: 100px; width: 60px; height: 60px; background: var(--css365jz-success); color: #fff; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(82,196,26,0.4); z-index: 999; transition: all 0.3s; font-size: 12px; font-weight: bold; line-height: 1.2; text-align: center; animation: z4dd8cpulse 2s infinite; }
.z4dd8cfloat_download:hover { transform: scale(1.1); background: var(--css365jz-success-hover); }
@keyframes z4dd8cpulse { 0% { box-shadow: 0 0 0 0 rgba(82,196,26,0.7); } 70% { box-shadow: 0 0 0 15px rgba(82,196,26,0); } 100% { box-shadow: 0 0 0 0 rgba(82,196,26,0); } }

/* === 响应式自适应 === */
@media (max-width: 1024px) {
    .z4dd8cfeature_grid { grid-template-columns: repeat(2, 1fr); }
    .z4dd8carticle_grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .z4dd8cmenu_toggle { display: block; }
    .z4dd8cnav { display: none; position: absolute; top: 64px; left: 0; width: 100%; background: #fff; flex-direction: column; padding: 16px 20px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
    .z4dd8cnav.active { display: flex; }
    .z4dd8chero { padding: 50px 0; }
    .z4dd8chero h1 { font-size: 26px; }
    .z4dd8chero_btns { flex-direction: column; align-items: center; }
    .z4dd8cdownload_box { flex-direction: column; text-align: center; gap: 24px; }
    .z4dd8cdownload_actions { flex-direction: column; width: 100%; }
    .z4dd8cdownload_actions .z4dd8cbtn { width: 100%; }
    .z4dd8cfeature_grid, .z4dd8cspec_list, .z4dd8carticle_grid, .z4dd8clist_grid { grid-template-columns: 1fr; }
    .z4dd8carticle_meta { flex-direction: column; gap: 8px; }
    .z4dd8cprenext { flex-direction: column; gap: 12px; }
    .z4dd8cfloat_download { width: 50px; height: 50px; font-size: 11px; right: 16px; bottom: 80px; }
}