网站分析数据图表仪表盘

生成一张 1024x1280 像素、4:5 竖版浅色网页分析仪表盘。顶部导航「总览」「受众」「获客」「转化」，日期选择器「2026年5月1日 - 5月20日」。四个指标卡：「总访问量 48,213」「跳出率 38.4%」「平均时长 3分12秒」「转化数 1,204」。左侧品牌「示例应用 数据分析」。中心双线趋势图和来源条形图，表格列名「页面」「访问」「转化」。所有可见文字为简体中文，不出现英文指标、英文品牌、真实分析平台标志、水印或乱码。

A pixel-perfect browser-based web analytics dashboard in flat design light mode, shown in a wide desktop viewport (1440px implied). A white top navbar shows tabs: Overview, Audience, Acquisition, Behavior, Conversions — the Overview tab is underlined in indigo. Below the nav, a date-range selector shows "May 1 – May 20, 2026" with a calendar icon. The main area has two rows. Top row: four metric tiles — "Total Sessions" (48,213), "Bounce Rate" (38.4%), "Avg. Duration" (3m 12s), "Conversions" (1,204) — each with a small spark-line trend chart. Second row: a large multi-line chart showing daily sessions vs. pageviews over 20 days (indigo for sessions, teal for pageviews), a vertical bar chart of traffic sources (Organic, Direct, Social, Referral, Email), and a horizontal table of top landing pages with URL, sessions, and conversion rate columns. A sidebar on the left has the logo "Strata Analytics" and navigation icons. Color palette: white, very light gray, indigo primary, teal secondary.