update at 2026-02-13 22:26:53

2026-02-13 22:26:53 +08:00
parent 2fe45888ba
commit 43107afff1
54 changed files with 2183 additions and 311 deletions
--- a/miniapp/README.md
+++ b/miniapp/README.md
@@ -1,10 +1,21 @@
-# 小程序端骨架
+# 小程序端（当前可用范围）

-当前目录提供了与 Figma `node-id=584:64` 对齐的页面骨架：
+当前目录已从骨架升级为可用版，支持以下能力：

- 顶部 Logo/主题/上传/导出区域
- 效果预览区域
- 源数据与目标数据列选择区域
- 主题底部选择器（底部弹层）
+- 顶部 Logo / 主题 / 上传 / 导出区域
+- 文件上传与解析：`csv / xls / xlsx`
+- 默认列映射：
+  - 源数据列优先匹配 `data/value/数据/值`
+  - 源描述列优先匹配 `source/源`
+  - 目标描述列优先匹配 `target/目标`
+  - 若无显式数值表头，则回退到第二行首个数字列
+- 源/目标列选择交互与聚合统计
+- 信息日志（解析信息 / 告警 / 错误）
+- 原生 canvas 桑基图预览
+- 导出能力：
+  - `PNG`：保存到系统相册
+  - `SVG`：生成 `.svg` 文件写入用户目录，优先尝试打开，失败时复制路径

-后续接入时建议直接复用 `src/core` 的解析与聚合逻辑，保持 Web 与小程序一致的数据行为。
+注意事项：
+- `xlsx` 解析依赖 npm 包，若在微信开发者工具中提示模块缺失，请先执行“工具 -> 构建 npm”。
+- SVG 文件导出后是否可直接预览，取决于当前系统与微信版本对 SVG 文档的支持。
--- a/miniapp/assets/icons/Button.svg
+++ b/miniapp/assets/icons/Button.svg
@@ -0,0 +1,5 @@
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+</svg>
--- a/miniapp/assets/icons/checkbox-no.svg
+++ b/miniapp/assets/icons/checkbox-no.svg
@@ -0,0 +1,3 @@
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+  <rect x="1" y="1" width="18" height="18" rx="4" stroke="#8552A1" stroke-width="2"/>
+</svg>
--- a/miniapp/assets/icons/checkbox.svg
+++ b/miniapp/assets/icons/checkbox.svg
@@ -0,0 +1,4 @@
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--- a/miniapp/assets/icons/choose-color.svg
+++ b/miniapp/assets/icons/choose-color.svg
@@ -0,0 +1,21 @@
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--- a/miniapp/assets/icons/content.svg
+++ b/miniapp/assets/icons/content.svg
@@ -0,0 +1,4 @@
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+</svg>
--- a/miniapp/assets/icons/data-select.svg
+++ b/miniapp/assets/icons/data-select.svg
--- a/miniapp/assets/icons/data.svg
+++ b/miniapp/assets/icons/data.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="19" height="19" fill="none" viewBox="0 0 19 19">
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+</svg>
--- a/miniapp/assets/icons/description.svg
+++ b/miniapp/assets/icons/description.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="none" viewBox="0 0 18 18">
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--- a/miniapp/assets/icons/download.svg
+++ b/miniapp/assets/icons/download.svg
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--- a/miniapp/assets/icons/expand.svg
+++ b/miniapp/assets/icons/expand.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" fill="none" viewBox="0 0 15 15">
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--- a/miniapp/assets/icons/export-png-s.svg
+++ b/miniapp/assets/icons/export-png-s.svg
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--- a/miniapp/assets/icons/export-png.svg
+++ b/miniapp/assets/icons/export-png.svg
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+  <circle cx="24" cy="24" r="24" fill="#2420A8" opacity=".2"/>
+  <circle cx="24" cy="24" r="18" fill="#2420A8"/>
+  <path fill="#F3EDF7" d="M9 31.301v-12.3h4.296c.833 0 1.463.051 1.891.155.429.104.839.31 1.23.615 1.065.832 1.598 2.112 1.598 3.837 0 1.31-.392 2.369-1.175 3.177a3.537 3.537 0 0 1-1.35.88c-.508.184-1.129.276-1.863.276H11.46v3.36H9Zm4.131-10.391h-1.67v5.122h1.505c.795 0 1.377-.172 1.744-.514.514-.453.771-1.15.771-2.093 0-.808-.202-1.43-.606-1.864-.404-.434-.985-.651-1.744-.651Zm6.683 7.031v-8.94h4.737c.71 0 1.251.051 1.625.155.373.104.713.29 1.019.56.624.575.936 1.481.936 2.717v5.508h-2.46v-5.783c0-.44-.098-.759-.294-.955-.196-.196-.52-.293-.973-.293h-2.13v7.031h-2.46ZM34.41 19H39v8.886c0 .502-.058.949-.174 1.34a2.807 2.807 0 0 1-.505.992 2.161 2.161 0 0 1-1.02.707c-.397.128-.975.193-1.734.193h-4.902v-1.91h4.571c.539 0 .89-.082 1.056-.248.165-.165.248-.505.248-1.019h-2.258c-.723 0-1.32-.076-1.79-.23a3.381 3.381 0 0 1-1.277-.761c-.893-.845-1.34-2.008-1.34-3.488 0-1.69.545-2.92 1.634-3.69a3.806 3.806 0 0 1 1.24-.598c.434-.116.988-.174 1.661-.174Zm2.13 7.032V20.91h-2.038c-1.42 0-2.13.856-2.13 2.57 0 .832.193 1.466.578 1.9.386.435.946.652 1.68.652h1.91Z"/>
+</svg>
--- a/miniapp/assets/icons/export-svg-s.svg
+++ b/miniapp/assets/icons/export-svg-s.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="25" height="12" fill="none" viewBox="0 0 25 12">
+  <rect width="25" height="11.921" fill="#E3D6EE" rx="4"/>
+  <path fill="#1D2129" d="M4.968 2H8.4v1.248H5.556c-.328 0-.536.016-.624.048-.184.064-.276.22-.276.468 0 .208.088.368.264.48.096.064.356.096.78.096h.948c.608 0 1.088.128 1.44.384.392.288.588.712.588 1.272 0 .424-.12.812-.36 1.164-.176.28-.39.464-.642.552-.252.088-.674.132-1.266.132H3.084V6.596h2.868c.352 0 .592-.004.72-.012.288-.032.432-.196.432-.492 0-.24-.096-.404-.288-.492-.096-.048-.328-.072-.696-.072h-.972c-.384 0-.678-.024-.882-.072a1.575 1.575 0 0 1-.57-.264 1.542 1.542 0 0 1-.51-.63A2.019 2.019 0 0 1 3 3.704c0-.584.212-1.048.636-1.392.256-.208.7-.312 1.332-.312Zm5.995 0 1.488 4.02L14.083 2h1.704l-2.52 5.844h-1.728L9.21 2h1.752Zm8.322 0h3v5.808c0 .328-.037.62-.113.876a1.834 1.834 0 0 1-.33.648 1.412 1.412 0 0 1-.666.462c-.26.084-.638.126-1.134.126h-3.205V8.672h2.989c.351 0 .581-.054.69-.162.108-.108.162-.33.162-.666H19.2c-.472 0-.862-.05-1.17-.15a2.21 2.21 0 0 1-.834-.498c-.584-.552-.876-1.312-.876-2.28 0-1.104.356-1.908 1.068-2.412.256-.184.526-.314.81-.39.284-.076.646-.114 1.086-.114Zm1.392 4.596V3.248h-1.331c-.929 0-1.393.56-1.393 1.68 0 .544.126.958.378 1.242.252.284.618.426 1.099.426h1.247Z"/>
+</svg>
--- a/miniapp/assets/icons/export-svg.svg
+++ b/miniapp/assets/icons/export-svg.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" fill="none" viewBox="0 0 48 48">
+  <circle cx="24" cy="24" r="24" fill="#8552A1" opacity=".2"/>
+  <circle cx="24" cy="24" r="18" fill="#8552A1"/>
+  <path fill="#F3EDF7" d="M12.062 18.99H17.4v1.942h-4.425c-.51 0-.834.025-.97.074-.287.1-.43.343-.43.728 0 .324.137.573.41.747.15.1.555.15 1.214.15h1.475c.946 0 1.692.199 2.24.597.61.448.915 1.107.915 1.979 0 .66-.187 1.263-.56 1.81-.274.436-.607.722-.999.86-.392.136-1.048.204-1.97.204H9.13V26.14h4.461c.548 0 .921-.006 1.12-.019.448-.05.672-.305.672-.765 0-.373-.149-.629-.448-.765-.149-.075-.51-.112-1.082-.112h-1.512c-.598 0-1.055-.038-1.373-.112a2.451 2.451 0 0 1-.886-.411 2.399 2.399 0 0 1-.794-.98A3.14 3.14 0 0 1 9 21.64c0-.908.33-1.63.99-2.165.398-.324 1.088-.486 2.072-.486Zm9.325 0 2.314 6.254 2.54-6.254h2.65l-3.92 9.091h-2.688l-3.622-9.09h2.726Zm12.946 0H39v9.036c0 .51-.06.964-.177 1.362-.118.398-.29.734-.514 1.008a2.196 2.196 0 0 1-1.036.719c-.404.13-.992.196-1.764.196h-4.984V29.37h4.648c.548 0 .905-.084 1.073-.252.168-.168.252-.514.252-1.037h-2.296c-.734 0-1.34-.077-1.82-.233a3.438 3.438 0 0 1-1.297-.774c-.909-.86-1.363-2.042-1.363-3.547 0-1.718.554-2.969 1.662-3.753a3.86 3.86 0 0 1 1.26-.606c.442-.119 1.005-.178 1.69-.178Zm2.166 7.15v-5.208h-2.073c-1.443 0-2.165.871-2.165 2.613 0 .847.196 1.49.588 1.932.392.442.961.663 1.708.663h1.941Z"/>
+</svg>
--- a/miniapp/assets/icons/export.svg
+++ b/miniapp/assets/icons/export.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="18" height="42" fill="none" viewBox="0 0 18 42">
+  <path fill="#00E8CF" d="M12.723 5.08H3.775v.442c0 .513.14.917.42 1.212.263.28.652.42 1.164.42h7.2c.56 0 .987-.125 1.282-.373.264-.233.42-.59.466-1.072l.07-.955a.771.771 0 0 1 .268-.56.882.882 0 0 1 .594-.21.794.794 0 0 1 .571.28.81.81 0 0 1 .198.606l-.07.955c-.078.948-.42 1.678-1.025 2.19-.606.529-1.39.793-2.354.793h-7.2c-.947 0-1.732-.303-2.353-.909-.606-.606-.909-1.398-.909-2.377V.816c0-.218.082-.408.245-.571A.809.809 0 0 1 2.936 0h9.787c.217 0 .411.082.582.245a.764.764 0 0 1 .256.57v3.45a.754.754 0 0 1-.256.582.842.842 0 0 1-.582.233ZM.839 11.068h10.043v-.979a.78.78 0 0 1 .244-.57.809.809 0 0 1 .595-.245c.217 0 .407.082.57.245a.782.782 0 0 1 .245.57v.98h3.659c.217 0 .407.08.57.244a.782.782 0 0 1 .245.57.808.808 0 0 1-.245.595.782.782 0 0 1-.57.245h-3.659v7.572a.809.809 0 0 1-.245.595.782.782 0 0 1-.57.244.81.81 0 0 1-.595-.244.809.809 0 0 1-.244-.595v-7.572H.839a.809.809 0 0 1-.594-.245.809.809 0 0 1-.245-.594c0-.218.082-.408.245-.571a.809.809 0 0 1 .594-.245Zm11.045-9.414h-8.11V3.45h8.11V1.654ZM6.198 14.866v2.866a.809.809 0 0 1-.245.595.782.782 0 0 1-.57.244.809.809 0 0 1-.595-.244.809.809 0 0 1-.244-.595v-2.866a.81.81 0 0 1 .244-.594.809.809 0 0 1 .595-.245c.217 0 .407.082.57.245a.81.81 0 0 1 .245.594ZM1.266 41.161v-7.456c0-.233.081-.431.244-.594a.809.809 0 0 1 .595-.245c.233 0 .427.081.582.245a.83.83 0 0 1 .233.594v6.64h4.66v-9.6H2.99a.83.83 0 0 1-.594-.233.771.771 0 0 1-.245-.582v-6.268c0-.218.082-.408.245-.571a.809.809 0 0 1 .594-.245c.218 0 .408.082.571.245a.782.782 0 0 1 .245.57v5.453H7.58v-7.2a.81.81 0 0 1 .245-.594.809.809 0 0 1 .594-.245c.218 0 .408.082.571.245a.809.809 0 0 1 .245.594v7.2h3.775v-5.569a.78.78 0 0 1 .244-.57.809.809 0 0 1 .595-.245.78.78 0 0 1 .57.244.782.782 0 0 1 .245.571v6.385a.771.771 0 0 1-.245.582.801.801 0 0 1-.57.233H9.235v9.6h4.66v-6.757a.81.81 0 0 1 .245-.594.782.782 0 0 1 .57-.245.81.81 0 0 1 .595.245.81.81 0 0 1 .245.594v7.573a.809.809 0 0 1-.245.594.81.81 0 0 1-.594.245H2.105a.809.809 0 0 1-.595-.245.809.809 0 0 1-.244-.594Z"/>
+</svg>
--- a/miniapp/assets/icons/favorite-red.svg
+++ b/miniapp/assets/icons/favorite-red.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="11" height="10" fill="none" viewBox="0 0 11 10">
+  <path fill="#FF0D0D" d="M7.549 0C6.645 0 5.807.455 5.25 1.203 4.7.455 3.855 0 2.951 0 1.323 0 0 1.449 0 3.227c0 1.06.473 1.807.856 2.406 1.108 1.742 3.897 3.903 4.017 3.993a.603.603 0 0 0 .754 0c.12-.09 2.904-2.257 4.017-3.993.383-.599.856-1.347.856-2.406C10.5 1.449 9.177 0 7.549 0Z"/>
+</svg>
--- a/miniapp/assets/icons/favorite.svg
+++ b/miniapp/assets/icons/favorite.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="18" height="17" fill="none" viewBox="0 0 18 17">
+  <path fill="#fff" stroke="#8552A1" stroke-width=".855" d="M12.94.428c2.52 0 4.632 2.255 4.632 5.103 0 1.68-.743 2.87-1.4 3.895-.92 1.437-2.554 3.077-4.008 4.394a49.45 49.45 0 0 1-2.774 2.34l-.008.006a.607.607 0 0 1-.673.06l-.09-.06-.009-.007-.27-.21a51.872 51.872 0 0 1-2.508-2.125c-1.455-1.316-3.088-2.955-4.004-4.396v-.001l-.249-.394C.997 8.096.428 7.001.428 5.531.428 2.683 2.54.428 5.06.428c1.402 0 2.725.706 3.595 1.888l.343.465.345-.463c.882-1.185 2.196-1.89 3.597-1.89Z"/>
+</svg>
--- a/miniapp/assets/icons/font-icon.svg
+++ b/miniapp/assets/icons/font-icon.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" fill="none" viewBox="0 0 10 10">
+  <path fill="#0079F5" d="M7.432 9.596H2.164A2.165 2.165 0 0 1 0 7.432V2.164C0 .97.97 0 2.164 0h5.268c1.195 0 2.164.97 2.164 2.164v5.268c0 1.195-.97 2.164-2.164 2.164Z"/>
+  <path fill="#fff" d="M6.24 2.982a.36.36 0 0 0-.662 0l-1.272 2.98a.24.24 0 1 0 .444.186l.147-.352a.813.813 0 0 1 .75-.501h.524c.328 0 .624.198.75.5l.147.353a.24.24 0 1 0 .444-.187L6.24 2.982Zm.058 1.312a.42.42 0 1 1-.776.324.42.42 0 0 1 .776-.324Zm-3.01-.587a.253.253 0 0 0-.465 0l-.774 1.814a.18.18 0 1 0 .333.14l.08-.194a.495.495 0 0 1 .457-.305h.273c.2 0 .38.12.457.305l.08.194a.18.18 0 1 0 .333-.14l-.774-1.814ZM3.055 4.84a.222.222 0 1 1 0-.443.222.222 0 0 1 0 .443Z"/>
+</svg>
--- a/miniapp/assets/icons/font-size-decrease.svg
+++ b/miniapp/assets/icons/font-size-decrease.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="none" viewBox="0 0 16 16">
+  <path fill="#5C5C66" d="M10.333 14.667a.333.333 0 0 1-.31-.213L8.55 10.667H2.784L1.31 14.454a.333.333 0 1 1-.622-.242l4.667-12a.333.333 0 0 1 .621 0l4.667 12a.335.335 0 0 1-.155.416.334.334 0 0 1-.156.039ZM3.043 10H8.29L5.667 3.253 3.043 10ZM15 4h-4a.333.333 0 1 1 0-.667h4A.333.333 0 1 1 15 4Z"/>
+</svg>
--- a/miniapp/assets/icons/font-size-increase.svg
+++ b/miniapp/assets/icons/font-size-increase.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+  <path fill="#5C5C66" d="M15.5 22a.5.5 0 0 1-.466-.319L12.824 16H4.176l-2.21 5.681a.5.5 0 1 1-.93-.362l7-18a.5.5 0 0 1 .93 0l7 18A.5.5 0 0 1 15.5 22ZM4.564 15h7.872L8.5 4.88 4.564 15ZM19.5 9a.5.5 0 0 1-.5-.5V6h-2.5a.5.5 0 0 1 0-1H19V2.5a.5.5 0 0 1 1 0V5h2.5a.5.5 0 0 1 0 1H20v2.5a.5.5 0 0 1-.5.5Z"/>
+</svg>
--- a/miniapp/assets/icons/gap.svg
+++ b/miniapp/assets/icons/gap.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="23" fill="none" viewBox="0 0 24 23">
+  <path fill="#8552A1" d="M.858 2.656V0H24v2.656H.858Zm9.919 7.034V7.034h13.202V9.69H10.777Zm.02 5.464v-2.656h13.165v2.656H10.794h.003ZM.91 22.085v-2.656h23.015v2.656H.91ZM0 9.621l4.109-4.18 4.106 4.182H0V9.62Zm.045 3.601h8.208L4.15 17.356.045 13.222Z"/>
+</svg>
--- a/miniapp/assets/icons/information.svg
+++ b/miniapp/assets/icons/information.svg
@@ -0,0 +1,4 @@
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+++ b/miniapp/assets/icons/list.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="10" height="9" fill="none" viewBox="0 0 10 9">
+  <path fill="#606060" d="m9.755 2.404-3.19 4.904c-.696 1.068-2.434 1.068-3.13 0L.246 2.404C-.451 1.336.419 0 1.809 0h6.382c1.39 0 2.26 1.336 1.564 2.404Z"/>
+</svg>
--- a/miniapp/assets/icons/padding.svg
+++ b/miniapp/assets/icons/padding.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+  <path fill="#C9CDD4" d="M5.6 18.4h12.8V5.6H5.6v12.8ZM24 20.8a3.2 3.2 0 0 1-2.874 3.184L20.8 24H3.2l-.326-.016a3.2 3.2 0 0 1-2.856-2.858L0 20.8V3.2A3.2 3.2 0 0 1 3.2 0h17.6A3.2 3.2 0 0 1 24 3.2v17.6Z"/>
+  <path fill="#8552A1" d="M17.4 21.6a1.2 1.2 0 1 1 0 2.4H6.6a1.2 1.2 0 1 1 0-2.4h10.8ZM0 17.4V6.6a1.2 1.2 0 1 1 2.4 0v10.8a1.2 1.2 0 1 1-2.4 0Zm21.6 0V6.6a1.2 1.2 0 1 1 2.4 0v10.8a1.2 1.2 0 1 1-2.4 0ZM17.4 0a1.2 1.2 0 1 1 0 2.4H6.6a1.2 1.2 0 0 1 0-2.4h10.8Z"/>
+</svg>
--- a/miniapp/assets/icons/radiobutton-no.svg
+++ b/miniapp/assets/icons/radiobutton-no.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="none" viewBox="0 0 12 12">
+  <rect width="9.917" height="9.917" x=".875" y=".875" stroke="#C9CDD4" stroke-width=".583" rx="4.958"/>
+</svg>
--- a/miniapp/assets/icons/radiobutton.svg
+++ b/miniapp/assets/icons/radiobutton.svg
@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" fill="none" viewBox="0 0 18 18">
+  <g clip-path="url(#a)">
+    <path fill="#8552A1" d="M9 0a9 9 0 0 0-9 9 9 9 0 0 0 9 9 9 9 0 0 0 9-9 9 9 0 0 0-9-9Zm5.934 6.21L8.16 12.988a.843.843 0 0 1-.599.247.844.844 0 0 1-.6-.247L3.066 9.09a.846.846 0 1 1 1.198-1.197L7.56 11.19l6.177-6.177a.847.847 0 1 1 1.197 1.198Z"/>
+  </g>
+  <defs>
+    <clipPath id="a">
+      <path fill="#fff" d="M0 0h18v18H0z"/>
+    </clipPath>
+  </defs>
+</svg>
--- a/miniapp/assets/icons/sankeyview.svg
+++ b/miniapp/assets/icons/sankeyview.svg
--- a/miniapp/assets/icons/search.svg
+++ b/miniapp/assets/icons/search.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="none" viewBox="0 0 32 32">
+  <rect width="32" height="32" fill="#8552A1" rx="10" transform="matrix(-1 0 0 1 32 0)"/>
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+</svg>
--- a/miniapp/assets/icons/select.svg
+++ b/miniapp/assets/icons/select.svg
--- a/miniapp/assets/icons/selectall.svg
+++ b/miniapp/assets/icons/selectall.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none" viewBox="0 0 20 20">
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+  <path fill="#8552A1" d="M10.114 9.583 7.966 7.61l-.716.658 2.864 2.633L16.25 5.26l-.716-.659-5.42 4.983Z"/>
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+  <path stroke="#8552A1" stroke-width=".5" d="M10.114 9.583 7.966 7.61l-.716.658 2.864 2.633L16.25 5.26l-.716-.659-5.42 4.983Z"/>
+</svg>
--- a/miniapp/assets/icons/unselectall.svg
+++ b/miniapp/assets/icons/unselectall.svg
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+<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none" viewBox="0 0 20 20">
+  <path fill="#8552A1" d="M15.608 15.302a.717.717 0 0 1 .218.524.712.712 0 0 1-.218.524.729.729 0 0 1-.525.218H4.326a1.78 1.78 0 0 1-1.303-.542 1.78 1.78 0 0 1-.543-1.303V3.963c0-.207.073-.383.218-.525a.728.728 0 0 1 .525-.218c.203 0 .382.072.524.218a.728.728 0 0 1 .218.524v10.015c0 .303.11.56.327.78.219.217.473.326.776.326h10.015c.206 0 .38.073.525.219Zm-2.97 2.227a.717.717 0 0 1 .218.524.712.712 0 0 1-.218.524.729.729 0 0 1-.524.218H2.098a1.78 1.78 0 0 1-1.303-.542 1.785 1.785 0 0 1-.545-1.306V6.932c0-.206.073-.382.218-.524a.728.728 0 0 1 .524-.219c.203 0 .382.073.525.219a.728.728 0 0 1 .218.524v9.272c0 .304.109.561.327.78.218.217.476.327.779.327h9.273c.203 0 .378.072.524.218ZM18.153.892c.427.43.643.952.643 1.567v9.67c0 .615-.216 1.14-.643 1.566a2.136 2.136 0 0 1-1.567.643H6.914c-.616 0-1.14-.215-1.567-.643a2.129 2.129 0 0 1-.642-1.563V2.459c0-.615.215-1.14.642-1.567A2.136 2.136 0 0 1 6.914.25h9.67c.617 0 1.139.215 1.569.642Zm-.842 2.164c0-.364-.13-.673-.388-.933a1.263 1.263 0 0 0-.934-.388H7.514c-.364 0-.673.13-.934.388a1.27 1.27 0 0 0-.39.933v8.476c0 .364.13.672.387.933.258.26.57.388.934.388h8.475c.364 0 .673-.13.934-.388.26-.257.388-.57.388-.933V3.056h.003Z"/>
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--- a/miniapp/assets/icons/upload.svg
+++ b/miniapp/assets/icons/upload.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="40" height="31" fill="none" viewBox="0 0 40 31">
+  <path fill="#2420A8" d="M40 24.68a5.17 5.17 0 0 1-.34 1.88 5.179 5.179 0 0 1-.96 1.58c-.413.467-.893.86-1.44 1.18-.547.32-1.14.533-1.78.64l.04.04H8.12c-.133.027-.347.04-.64.04-1.04 0-2.013-.2-2.92-.6-.907-.4-1.7-.94-2.38-1.62a7.48 7.48 0 0 1-1.6-2.38A7.365 7.365 0 0 1 0 22.52c0-1.04.193-2.013.58-2.92a7.48 7.48 0 0 1 1.6-2.38 7.763 7.763 0 0 1 2.38-1.62c.907-.4 1.88-.6 2.92-.6h.04a4.85 4.85 0 0 1-.04-.6v-.64c0-1.893.36-3.68 1.08-5.36.72-1.68 1.707-3.14 2.96-4.38a14.132 14.132 0 0 1 4.38-2.94C17.567.36 19.347 0 21.24 0c1.893 0 3.68.36 5.36 1.08 1.68.72 3.147 1.7 4.4 2.94 1.253 1.24 2.24 2.7 2.96 4.38.72 1.68 1.08 3.467 1.08 5.36 0 .987-.107 1.953-.32 2.9a14.878 14.878 0 0 1-.88 2.7 4.66 4.66 0 0 1 .84-.08c.72 0 1.407.14 2.06.42.653.28 1.22.667 1.7 1.16.48.493.86 1.067 1.14 1.72.28.653.42 1.353.42 2.1Zm-14-4.76c.533 0 .88-.06 1.04-.18.16-.12.053-.407-.32-.86-.373-.48-.787-1.107-1.24-1.88-.453-.773-.927-1.56-1.42-2.36-.493-.8-.993-1.547-1.5-2.24-.507-.693-1-1.2-1.48-1.52-.48-.347-.833-.533-1.06-.56-.227-.027-.553.133-.98.48-.48.4-.947.907-1.4 1.52a54.547 54.547 0 0 0-1.38 1.96c-.467.693-.933 1.373-1.4 2.04a15.38 15.38 0 0 1-1.42 1.76c-.48.48-.653.907-.52 1.28s.467.56 1 .56h.64c.24 0 .5.007.78.02.28.013.553.02.82.02h.68c.373.027.613.153.72.38.107.227.16.54.16.94 0 .453-.007.853-.02 1.2-.013.347-.02.68-.02 1 0 .32-.007.653-.02 1-.013.347-.02.747-.02 1.2 0 .187.02.387.06.6.04.213.113.413.22.6s.267.34.48.46c.213.12.493.18.84.18h.92c.24 0 .6.013 1.08.04.64 0 1.007-.16 1.1-.48.093-.32.14-.827.14-1.52 0-.613.007-1.167.02-1.66.013-.493.02-1.167.02-2.02 0-.613.06-1.087.18-1.42.12-.333.38-.5.78-.5.293 0 .713-.007 1.26-.02.547-.013.967-.02 1.26-.02Z"/>
+</svg>
--- a/miniapp/assets/icons/webicon.png
+++ b/miniapp/assets/icons/webicon.png
--- a/miniapp/assets/icons/zhedie.svg
+++ b/miniapp/assets/icons/zhedie.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" fill="none" viewBox="0 0 15 15">
+  <path fill="#000" d="M15 7.5a7.5 7.5 0 1 1-15 0 7.5 7.5 0 0 1 15 0Z"/>
+  <path fill="#fff" d="M3 7.75A.75.75 0 0 1 3.75 7h7.5a.75.75 0 0 1 0 1.5h-7.5A.75.75 0 0 1 3 7.75Z"/>
+</svg>
--- a/miniapp/assets/icons/星程字体转换.svg
+++ b/miniapp/assets/icons/星程字体转换.svg
@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="360" height="33" fill="none" viewBox="0 0 360 33">
+  <g clip-path="url(#a)">
+    <path fill="#8552A1" d="M7.305 15.333h7.898l-.856 1.51h8.49l.593-2.883H5.594L7.832 2.7 5.857.87h50.874L54.1 13.96H36.724l-.592 2.883h17.572l-.856 4.12H35.276l-.395 1.968h17.507l-.79 3.936H34.09l-.263 1.373h20.468l-.79 3.89H0l.79-3.89h19.744l.263-1.373H4.87l.79-3.936h15.927l.395-1.968h-9.938l-.724 1.373H3.16l4.145-7.003ZM20.007 5.63H43.24l.33-1.373H20.336l-.329 1.373Zm22.311 4.668.263-1.327H19.35l-.263 1.327h23.232Zm51.795 10.894.527-2.793h-9.872l.79-3.982h31.327l-.79 3.982h-10.004l-.526 2.793h8.753l-.855 4.165h-8.754l-.724 3.432h10.465l-.856 4.028H81.477l.856-4.028h10.2l.725-3.433H84.57l.856-4.165h8.687ZM85.36 4.622l-4.804.321-.856 4.303h5.66l-.855 4.21H78.12l-3.95 19.498h-8.687l3.95-19.498H62.72l.856-4.21h5.989l.79-3.662-5.66.366.855-4.21L86.216.411l-.856 4.21ZM89.572.87h29.09l-2.369 11.762h-29.09L89.573.87ZM59.101 31.307l4.212-16.111h5.594l-4.212 16.11H59.1Zm16.65 0 2.37-16.111h5.594l-2.37 16.11h-5.594ZM107.21 8.65l.724-3.8h-9.345l-.724 3.8h9.345Zm35.276 11.031.395-1.785 14.545-3.112h-28.958l.921-4.44h43.766l-1.053 5.31-17.111 4.027h21.258l-.856 4.44h-21.324l-1.118 5.72c-.176.886-.757 1.626-1.744 2.22-.988.596-2.117.893-3.39.893h-12.965l5.857-4.302.922-4.531h-21.258l.856-4.44h21.257ZM163.81 6.957h-25.009l-.461 2.472h-13.755l1.382-6.82h19.942l.197-.915L144.066 0h15.927l-.593 2.61h19.086l-1.382 6.82h-13.755l.461-2.472Zm48.044 2.197-4.41 13.044h2.962l2.896-14.371h-11.847l.856-4.348h11.846l.395-1.74L212.446 0h14.413l-.724 3.479h11.847l-.856 4.348H225.28l-2.962 14.371h3.028l.855-13.044h8.161l-1.58 23.022h-8.095l.329-5.63h-3.553l-1.317 6.408h-11.912l1.25-6.407h-3.488l-1.908 5.63h-8.161l7.766-23.023h8.161Zm-12.176-4.806-.197.961-5.594 27.645h-11.913l5.266-25.951-3.818.503 1.053-5.217L200.534.092l-.856 4.256Zm79.503 19.361 1.514 1.053 5.396-3.021H268.98l3.554-6.088h-4.081l.856-4.302h5.726l1.974-3.387h-4.607l.856-4.21h6.186l1.514-2.61L279.313 0h12.504l-2.04 3.753h9.872l-.856 4.211h-11.32l-1.776 3.387h14.018l-.856 4.302h-15.532l-1.119 2.106h14.216l-1.185 5.446-9.148 5.264 6.516 4.44h-11.846l-12.702-9.2h11.122Zm-33.565-9.566 3.751-6.545h-3.356l.856-4.257h4.936l1.118-1.922-1.316-1.373h9.346l-1.909 3.295h11.846l-.855 4.257h-13.426l-3.883 6.82h2.962l1.118-5.31h8.161l-1.053 5.31h3.686l-.79 4.073h-3.751l-.724 3.524 4.936-.457-.922 4.577-4.936.457-1.25 6.27h-9.872l1.053-5.309-9.938.916.921-4.577 9.938-.915.922-4.486h-8.424l.855-4.348Zm78.252 5.127 2.041-9.933h16.914l3.422-3.25h-6.581l-2.304 1.831h-11.122l8.687-6.82-1.25-1.052h13.623l-2.633 2.06h13.69l-.79 4.119-3.357 3.112h5.66l-2.04 9.932H360l-.856 4.12h-12.702L356.907 33h-10.596l-6.845-6.957-9.016 6.774h-11.715l13.097-9.429h-10.991l.856-4.119h2.171ZM311.956 5.446l.856-4.165L311.232 0h12.505l-1.119 5.447h2.567l-.856 4.348h-2.632l-.856 4.394 2.698-.55-.987 4.76-2.698.55-2.172 10.847c-.176.855-.735 1.572-1.678 2.151-.944.58-2.052.87-3.324.87h-10.53l5.133-4.12 1.514-7.46-4.278.87.987-4.806 4.212-.87 1.383-6.636h-4.147l.856-4.348h4.146Zm34.75 7.231-1.317 6.5h4.081l1.316-6.5h-4.08Zm-13.097.138-1.316 6.453h4.014l1.316-6.453h-4.014Z"/>
+  </g>
+  <defs>
+    <clipPath id="a">
+      <path fill="#fff" d="M0 0h360v33H0z"/>
+    </clipPath>
+  </defs>
+</svg>
--- a/miniapp/assets/icons/星程桑基图.svg
+++ b/miniapp/assets/icons/星程桑基图.svg
--- a/miniapp/pages/index/index.js
+++ b/miniapp/pages/index/index.js
@@ -1,12 +1,419 @@
+const { parseTableByFileName, buildSankeyData } = require('../../utils/sankey');
+
+/**
+ * 将表头标准化，便于做中英文别名匹配。
+ */
+function normalizeHeaderName(header) {
+  return String(header || '')
+    .trim()
+    .toLowerCase()
+    .replace(/[\s_-]+/g, '');
+}
+
+/**
+ * 根据候选别名查找列索引。
+ */
+function findHeaderIndex(headers, aliases) {
+  const aliasSet = {};
+  aliases.forEach((item) => {
+    aliasSet[normalizeHeaderName(item)] = true;
+  });
+  for (let i = 0; i < headers.length; i += 1) {
+    if (aliasSet[normalizeHeaderName(headers[i])]) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+/**
+ * 判断文本是否可作为数值。
+ */
+function isNumericCell(text) {
+  const normalized = String(text || '')
+    .replace(/,/g, '')
+    .trim();
+  if (!normalized) {
+    return false;
+  }
+  return !Number.isNaN(Number(normalized));
+}
+
+/**
+ * 取第二行中的首个数字列索引。
+ */
+function findNumericColumnFromSecondRow(rows) {
+  const secondRow = rows[0] || [];
+  for (let i = 0; i < secondRow.length; i += 1) {
+    if (isNumericCell(secondRow[i])) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+/**
+ * 从文件名中提取后缀（不含点）。
+ */
+function getFileExtension(fileName) {
+  const lowerName = String(fileName || '').toLowerCase();
+  const lastDotIndex = lowerName.lastIndexOf('.');
+  if (lastDotIndex < 0) {
+    return '';
+  }
+  return lowerName.slice(lastDotIndex + 1);
+}
+
+/**
+ * 节点配色：与当前画布渲染保持一致，双色交替。
+ */
+function getNodeColor(index) {
+  return index % 2 === 0 ? '#9b6bc2' : '#7e95f7';
+}
+
+/**
+ * 标签纵向位置：小节点也能保持可读，不贴边。
+ */
+function getNodeLabelCenterY(nodeHeight) {
+  return Math.min(12, Math.max(8, nodeHeight / 2));
+}
+
+/**
+ * 构建导出文件时间戳，格式与 Web 保持一致。
+ */
+function formatFileTimestamp() {
+  const now = new Date();
+  const pad = (value) => String(value).padStart(2, '0');
+  return `${now.getFullYear()}${pad(now.getMonth() + 1)}${pad(now.getDate())}_${pad(now.getHours())}${pad(
+    now.getMinutes()
+  )}${pad(now.getSeconds())}`;
+}
+
+/**
+ * SVG 文本转义，避免标签名包含特殊字符导致 XML 非法。
+ */
+function escapeSvgText(text) {
+  return String(text || '')
+    .replace(/&/g, '&amp;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;')
+    .replace(/'/g, '&#39;');
+}
+
+/**
+ * SVG 数值输出做轻量格式化，避免太长小数。
+ */
+function formatSvgNumber(value) {
+  const normalized = Number(value || 0);
+  if (!Number.isFinite(normalized)) {
+    return '0';
+  }
+  return String(Number(normalized.toFixed(2)));
+}
+
+/**
+ * 下拉选项：与 Web 手机端保持一致。
+ */
+const GAP_OPTIONS = [0, 5, 10, 15, 20, 25, 30];
+const PADDING_OPTIONS = [0, 10, 20, 30, 40, 50, 60, 70, 80];
+const LABEL_POSITION_OPTIONS = [
+  { value: 'inner', label: '内' },
+  { value: 'outer', label: '外' },
+  { value: 'left', label: '左' },
+  { value: 'right', label: '右' }
+];
+const TARGET_ALIGN_OPTIONS = [
+  { value: 'between', label: '两端' },
+  { value: 'middle', label: '中间' },
+  { value: 'top', label: '顶部' },
+  { value: 'bottom', label: '底部' }
+];
+
+/**
+ * 数值限制，避免 UI 参数导致布局异常。
+ */
+function clampNumber(value, min, max, fallback) {
+  const normalized = Number(value);
+  if (!Number.isFinite(normalized)) {
+    return fallback;
+  }
+  return Math.min(max, Math.max(min, normalized));
+}
+
+/**
+ * 方向切换：target->source 时对连线做镜像翻转。
+ */
+function applyDirection(links, direction) {
+  if (!Array.isArray(links)) {
+    return [];
+  }
+  if (direction !== 'target-to-source') {
+    return links;
+  }
+  return links.map((link) => ({
+    source: link.target,
+    target: link.source,
+    value: link.value
+  }));
+}
+
+/**
+ * 根据标签位置模式返回 Canvas 文本绘制参数。
+ */
+function getCanvasLabelPlacement(layout, isSource, labelPositionMode) {
+  const sourceInnerX = layout.leftX + layout.nodeWidth + 4;
+  const sourceOuterX = Math.max(2, layout.leftX - 4);
+  const targetInnerX = Math.max(2, layout.rightX - 4);
+  const targetOuterX = layout.rightX + layout.nodeWidth + 4;
+
+  if (labelPositionMode === 'outer') {
+    return isSource
+      ? { x: sourceOuterX, textAlign: 'right' }
+      : { x: targetOuterX, textAlign: 'left' };
+  }
+  if (labelPositionMode === 'left') {
+    return isSource
+      ? { x: sourceOuterX, textAlign: 'right' }
+      : { x: targetInnerX, textAlign: 'right' };
+  }
+  if (labelPositionMode === 'right') {
+    return isSource
+      ? { x: sourceInnerX, textAlign: 'left' }
+      : { x: targetOuterX, textAlign: 'left' };
+  }
+  return isSource
+    ? { x: sourceInnerX, textAlign: 'left' }
+    : { x: targetInnerX, textAlign: 'right' };
+}
+
+/**
+ * 根据标签位置模式返回 SVG 文本锚点参数。
+ */
+function getSvgLabelPlacement(layout, isSource, labelPositionMode) {
+  const canvasPlacement = getCanvasLabelPlacement(layout, isSource, labelPositionMode);
+  return {
+    x: canvasPlacement.x,
+    textAnchor: canvasPlacement.textAlign === 'right' ? 'end' : 'start'
+  };
+}
+
+/**
+ * 统一生成桑基图布局数据，供 canvas 渲染与 SVG 导出共用。
+ */
+function buildSankeyLayout(links, width, height, renderOptions) {
+  if (!Array.isArray(links) || links.length === 0) {
+    return null;
+  }
+
+  const nodeGap = clampNumber(renderOptions && renderOptions.nodeGap, 0, 60, 8);
+  const padding = clampNumber(renderOptions && renderOptions.chartPadding, 0, 120, 16);
+  const targetAlignMode = (renderOptions && renderOptions.targetAlignMode) || 'between';
+  const nodeWidth = 10;
+  const leftX = padding;
+  const rightX = Math.max(padding + nodeWidth + 80, width - padding - nodeWidth);
+
+  const sourceValueMap = {};
+  const targetValueMap = {};
+  links.forEach((link) => {
+    sourceValueMap[link.source] = (sourceValueMap[link.source] || 0) + Number(link.value || 0);
+    targetValueMap[link.target] = (targetValueMap[link.target] || 0) + Number(link.value || 0);
+  });
+
+  const sourceNames = Object.keys(sourceValueMap);
+  const targetNames = Object.keys(targetValueMap);
+  const totalValue = sourceNames.reduce((sum, name) => sum + sourceValueMap[name], 0);
+  if (totalValue <= 0) {
+    return null;
+  }
+
+  const sourceGapCount = Math.max(0, sourceNames.length - 1);
+  const sourceContentHeight = Math.max(10, height - padding * 2 - sourceGapCount * nodeGap);
+  const sourceUnitHeight = sourceContentHeight / totalValue;
+
+  const sourcePos = {};
+  let sourceCursorY = padding;
+  sourceNames.forEach((name) => {
+    const nodeHeight = Math.max(2, sourceValueMap[name] * sourceUnitHeight);
+    sourcePos[name] = { y: sourceCursorY, h: nodeHeight };
+    sourceCursorY += nodeHeight + nodeGap;
+  });
+
+  const targetGapCount = Math.max(0, targetNames.length - 1);
+  const targetTotalValue = targetNames.reduce((sum, name) => sum + targetValueMap[name], 0);
+  const targetUnitHeight = targetTotalValue > 0 ? sourceUnitHeight : 0;
+  const targetTotalNodeHeight = targetTotalValue * targetUnitHeight;
+  const targetBlockHeight = targetTotalNodeHeight + targetGapCount * nodeGap;
+  const layoutHeight = Math.max(10, height - padding * 2);
+  let targetStartY = padding;
+  if (targetAlignMode === 'middle') {
+    targetStartY = padding + Math.max(0, (layoutHeight - targetBlockHeight) / 2);
+  } else if (targetAlignMode === 'bottom') {
+    targetStartY = padding + Math.max(0, layoutHeight - targetBlockHeight);
+  } else if (targetAlignMode === 'top') {
+    targetStartY = padding;
+  }
+
+  const targetPos = {};
+  let targetCursorY = targetStartY;
+  targetNames.forEach((name) => {
+    const nodeHeight = Math.max(2, targetValueMap[name] * targetUnitHeight);
+    targetPos[name] = { y: targetCursorY, h: nodeHeight };
+    targetCursorY += nodeHeight + nodeGap;
+  });
+
+  const sourceOffset = {};
+  const targetOffset = {};
+  sourceNames.forEach((name) => {
+    sourceOffset[name] = 0;
+  });
+  targetNames.forEach((name) => {
+    targetOffset[name] = 0;
+  });
+
+  const linkSegments = [];
+  links.forEach((link) => {
+    const sourceNode = sourcePos[link.source];
+    const targetNode = targetPos[link.target];
+    if (!sourceNode || !targetNode) {
+      return;
+    }
+
+    const linkHeight = Math.max(1, Number(link.value || 0) * sourceUnitHeight);
+    const sy = sourceNode.y + sourceOffset[link.source] + linkHeight / 2;
+    const ty = targetNode.y + targetOffset[link.target] + linkHeight / 2;
+    sourceOffset[link.source] += linkHeight;
+    targetOffset[link.target] += linkHeight;
+
+    const startX = leftX + nodeWidth;
+    const endX = rightX;
+    const controlX = (startX + endX) / 2;
+
+    linkSegments.push({
+      startX,
+      endX,
+      controlX,
+      sy,
+      ty,
+      linkHeight
+    });
+  });
+
+  return {
+    leftX,
+    rightX,
+    nodeWidth,
+    sourceNames,
+    targetNames,
+    sourcePos,
+    targetPos,
+    linkSegments
+  };
+}
+
+/**
+ * 基于布局结果构建可下载的 SVG 字符串。
+ */
+function buildSankeySvgText(links, width, height, renderOptions) {
+  const layout = buildSankeyLayout(links, width, height, renderOptions);
+  if (!layout) {
+    return '';
+  }
+  const labelPositionMode = (renderOptions && renderOptions.labelPositionMode) || 'inner';
+
+  const segments = [];
+  segments.push(
+    `<svg xmlns="http://www.w3.org/2000/svg" width="${formatSvgNumber(width)}" height="${formatSvgNumber(
+      height
+    )}" viewBox="0 0 ${formatSvgNumber(width)} ${formatSvgNumber(height)}">`
+  );
+  segments.push(
+    `<rect x="0" y="0" width="${formatSvgNumber(width)}" height="${formatSvgNumber(height)}" fill="#f7f8fa" />`
+  );
+
+  layout.linkSegments.forEach((segment) => {
+    const pathData = `M ${formatSvgNumber(segment.startX)} ${formatSvgNumber(segment.sy)} C ${formatSvgNumber(
+      segment.controlX
+    )} ${formatSvgNumber(segment.sy)} ${formatSvgNumber(segment.controlX)} ${formatSvgNumber(segment.ty)} ${formatSvgNumber(
+      segment.endX
+    )} ${formatSvgNumber(segment.ty)}`;
+    segments.push(
+      `<path d="${pathData}" fill="none" stroke="#9b6bc2" stroke-opacity="0.35" stroke-width="${formatSvgNumber(
+        segment.linkHeight
+      )}" stroke-linecap="round" />`
+    );
+  });
+
+  layout.sourceNames.forEach((name, index) => {
+    const node = layout.sourcePos[name];
+    const textY = node.y + getNodeLabelCenterY(node.h);
+    const textPlacement = getSvgLabelPlacement(layout, true, labelPositionMode);
+    segments.push(
+      `<rect x="${formatSvgNumber(layout.leftX)}" y="${formatSvgNumber(node.y)}" width="${formatSvgNumber(
+        layout.nodeWidth
+      )}" height="${formatSvgNumber(node.h)}" fill="${getNodeColor(index)}" />`
+    );
+    segments.push(
+      `<text x="${formatSvgNumber(textPlacement.x)}" y="${formatSvgNumber(textY)}" fill="#4e5969" font-size="10" text-anchor="${
+        textPlacement.textAnchor
+      }" dominant-baseline="middle">${escapeSvgText(name)}</text>`
+    );
+  });
+
+  layout.targetNames.forEach((name, index) => {
+    const node = layout.targetPos[name];
+    const textY = node.y + getNodeLabelCenterY(node.h);
+    const textPlacement = getSvgLabelPlacement(layout, false, labelPositionMode);
+    segments.push(
+      `<rect x="${formatSvgNumber(layout.rightX)}" y="${formatSvgNumber(node.y)}" width="${formatSvgNumber(
+        layout.nodeWidth
+      )}" height="${formatSvgNumber(node.h)}" fill="${getNodeColor(index)}" />`
+    );
+    segments.push(
+      `<text x="${formatSvgNumber(textPlacement.x)}" y="${formatSvgNumber(textY)}" fill="#4e5969" font-size="10" text-anchor="${
+        textPlacement.textAnchor
+      }" dominant-baseline="middle">${escapeSvgText(name)}</text>`
+    );
+  });
+
+  segments.push('</svg>');
+  return segments.join('\n');
+}
+
 Page({
  data: {
    selectedThemeIndex: 1,
-    sourceColumns: ['列1', '列2'],
-    targetColumns: ['列1', '列2'],
-    sourceDataIndex: 1,
-    sourceDescChecked: [1],
-    targetDescChecked: [1],
-    showThemeSheet: false
+    showThemeSheet: false,
+    uploadMessage: '点击上传或将csv/xls文件拖到这里上传',
+    parseError: '',
+    buildError: '',
+    columnHeaders: ['列1', '列2', '列3'],
+    tableRows: [],
+    sourceDataColumn: null,
+    sourceDescriptionColumns: [],
+    targetDescriptionColumns: [],
+    nodesCount: 0,
+    linksCount: 0,
+    droppedRows: 0,
+    buildWarnings: [],
+    infoLogs: ['解析信息: 尚未加载数据文件'],
+    sankeyLinks: [],
+    sankeyNodes: [],
+    gapOptions: GAP_OPTIONS,
+    gapOptionIndex: 1,
+    nodeGap: GAP_OPTIONS[1],
+    paddingOptions: PADDING_OPTIONS,
+    paddingOptionIndex: 2,
+    chartPadding: PADDING_OPTIONS[2],
+    direction: 'source-to-target',
+    labelPositionOptionLabels: LABEL_POSITION_OPTIONS.map((item) => item.label),
+    labelPositionValues: LABEL_POSITION_OPTIONS.map((item) => item.value),
+    labelPositionIndex: 0,
+    labelPositionMode: LABEL_POSITION_OPTIONS[0].value,
+    targetAlignOptionLabels: TARGET_ALIGN_OPTIONS.map((item) => item.label),
+    targetAlignValues: TARGET_ALIGN_OPTIONS.map((item) => item.value),
+    targetAlignIndex: 0,
+    targetAlignMode: TARGET_ALIGN_OPTIONS[0].value
  },

  /**
@@ -21,5 +428,538 @@ Page({
   */
  onCloseThemeSheet() {
    this.setData({ showThemeSheet: false });
+  },
+
+  /**
+   * 更新“节点间距”下拉值并立即重绘。
+   */
+  onChangeGap(e) {
+    const pickedIndex = Number(e.detail && e.detail.value);
+    const safeIndex = Number.isFinite(pickedIndex) ? pickedIndex : 0;
+    const nextValue = this.data.gapOptions[safeIndex];
+    this.setData(
+      {
+        gapOptionIndex: safeIndex,
+        nodeGap: Number.isFinite(nextValue) ? nextValue : this.data.nodeGap
+      },
+      () => {
+        this.drawSankey();
+      }
+    );
+  },
+
+  /**
+   * 更新“预览边距”下拉值并立即重绘。
+   */
+  onChangePadding(e) {
+    const pickedIndex = Number(e.detail && e.detail.value);
+    const safeIndex = Number.isFinite(pickedIndex) ? pickedIndex : 0;
+    const nextValue = this.data.paddingOptions[safeIndex];
+    this.setData(
+      {
+        paddingOptionIndex: safeIndex,
+        chartPadding: Number.isFinite(nextValue) ? nextValue : this.data.chartPadding
+      },
+      () => {
+        this.drawSankey();
+      }
+    );
+  },
+
+  /**
+   * 切换连线方向（source->target / target->source）。
+   */
+  onToggleDirection() {
+    this.setData(
+      {
+        direction:
+          this.data.direction === 'source-to-target' ? 'target-to-source' : 'source-to-target'
+      },
+      () => {
+        this.drawSankey();
+      }
+    );
+  },
+
+  /**
+   * 更新标签位置模式并重绘。
+   */
+  onChangeLabelPosition(e) {
+    const pickedIndex = Number(e.detail && e.detail.value);
+    const safeIndex = Number.isFinite(pickedIndex) ? pickedIndex : 0;
+    const nextMode = this.data.labelPositionValues[safeIndex];
+    this.setData(
+      {
+        labelPositionIndex: safeIndex,
+        labelPositionMode: nextMode || 'inner'
+      },
+      () => {
+        this.drawSankey();
+      }
+    );
+  },
+
+  /**
+   * 更新汇聚对齐模式并重绘。
+   */
+  onChangeTargetAlign(e) {
+    const pickedIndex = Number(e.detail && e.detail.value);
+    const safeIndex = Number.isFinite(pickedIndex) ? pickedIndex : 0;
+    const nextMode = this.data.targetAlignValues[safeIndex];
+    this.setData(
+      {
+        targetAlignIndex: safeIndex,
+        targetAlignMode: nextMode || 'between'
+      },
+      () => {
+        this.drawSankey();
+      }
+    );
+  },
+
+  /**
+   * 页面 ready 后绘制一次空白画布，避免首次显示延迟。
+   */
+  onReady() {
+    this.drawSankey();
+  },
+
+  /**
+   * 上传数据文件并解析为表头与数据行。
+   */
+  onChooseFile() {
+    const that = this;
+    wx.chooseMessageFile({
+      count: 1,
+      type: 'file',
+      extension: ['csv', 'xls', 'xlsx'],
+      success(res) {
+        const picked = res.tempFiles && res.tempFiles[0];
+        if (!picked) {
+          return;
+        }
+        const filePath = picked.path;
+        const fileName = picked.name || 'unknown.csv';
+        const extension = getFileExtension(fileName);
+        const isCsvFile = extension === 'csv';
+        const readOptions = {
+          filePath,
+          success(readRes) {
+            try {
+              const filePayload = isCsvFile ? String(readRes.data || '') : readRes.data;
+              const table = parseTableByFileName(fileName, filePayload);
+              that.applyParsedTable(table, fileName);
+            } catch (error) {
+              that.setData({
+                parseError: error && error.message ? error.message : '文件解析失败'
+              });
+              that.refreshInfoLogs();
+            }
+          },
+          fail(err) {
+            that.setData({
+              parseError: `读取文件失败: ${err && err.errMsg ? err.errMsg : '未知错误'}`
+            });
+            that.refreshInfoLogs();
+          }
+        };
+        if (isCsvFile) {
+          readOptions.encoding = 'utf8';
+        }
+        wx.getFileSystemManager().readFile(readOptions);
+      },
+      fail(err) {
+        if (err && String(err.errMsg || '').indexOf('cancel') >= 0) {
+          return;
+        }
+        that.setData({
+          parseError: `选择文件失败: ${err && err.errMsg ? err.errMsg : '未知错误'}`
+        });
+        that.refreshInfoLogs();
+      }
+    });
+  },
+
+  /**
+   * 应用解析结果，并按 Web 规则设置默认映射后触发重建。
+   */
+  applyParsedTable(table, fileName) {
+    const headers = table.headers || [];
+    const rows = table.rows || [];
+    const sourceByName = findHeaderIndex(headers, ['data', 'value', '数据', '值']);
+    const sourceBySecondRow = findNumericColumnFromSecondRow(rows);
+    const sourceDescByName = findHeaderIndex(headers, ['source', '源']);
+    const targetDescByName = findHeaderIndex(headers, ['target', '目标']);
+
+    const sourceDataColumn =
+      sourceByName >= 0 ? sourceByName : sourceBySecondRow >= 0 ? sourceBySecondRow : null;
+    const sourceDescriptionColumns = sourceDescByName >= 0 ? [sourceDescByName] : [];
+    const targetDescriptionColumns = targetDescByName >= 0 ? [targetDescByName] : [];
+
+    this.setData(
+      {
+        uploadMessage: `已加载: ${fileName}（${rows.length} 行）`,
+        parseError: '',
+        buildError: '',
+        columnHeaders: headers.length > 0 ? headers : ['列1', '列2', '列3'],
+        tableRows: rows,
+        sourceDataColumn,
+        sourceDescriptionColumns,
+        targetDescriptionColumns
+      },
+      () => {
+        this.rebuildSankey();
+      }
+    );
+  },
+
+  onSelectSourceData(e) {
+    const index = Number(e.currentTarget.dataset.index);
+    this.setData(
+      {
+        sourceDataColumn: Number.isNaN(index) ? null : index
+      },
+      () => {
+        this.rebuildSankey();
+      }
+    );
+  },
+
+  onToggleSourceDesc(e) {
+    const index = Number(e.currentTarget.dataset.index);
+    if (Number.isNaN(index)) {
+      return;
+    }
+    const current = this.data.sourceDescriptionColumns || [];
+    const exists = current.indexOf(index) >= 0;
+    const next = exists
+      ? current.filter((item) => item !== index)
+      : current.concat(index).sort((a, b) => a - b);
+    this.setData(
+      {
+        sourceDescriptionColumns: next
+      },
+      () => {
+        this.rebuildSankey();
+      }
+    );
+  },
+
+  onToggleTargetDesc(e) {
+    const index = Number(e.currentTarget.dataset.index);
+    if (Number.isNaN(index)) {
+      return;
+    }
+    const current = this.data.targetDescriptionColumns || [];
+    const exists = current.indexOf(index) >= 0;
+    const next = exists
+      ? current.filter((item) => item !== index)
+      : current.concat(index).sort((a, b) => a - b);
+    this.setData(
+      {
+        targetDescriptionColumns: next
+      },
+      () => {
+        this.rebuildSankey();
+      }
+    );
+  },
+
+  /**
+   * 根据当前映射重建聚合结果，输出统计与告警。
+   */
+  rebuildSankey() {
+    const headers = this.data.columnHeaders || [];
+    const rows = this.data.tableRows || [];
+    if (rows.length === 0) {
+      this.setData({
+        nodesCount: 0,
+        linksCount: 0,
+        droppedRows: 0,
+        buildWarnings: [],
+        buildError: '',
+        sankeyLinks: [],
+        sankeyNodes: []
+      });
+      this.refreshInfoLogs();
+      this.drawSankey();
+      return;
+    }
+
+    try {
+      const result = buildSankeyData(
+        {
+          headers,
+          rows
+        },
+        {
+          sourceDataColumn: this.data.sourceDataColumn,
+          sourceDescriptionColumns: this.data.sourceDescriptionColumns || [],
+          targetDescriptionColumns: this.data.targetDescriptionColumns || [],
+          delimiter: '-'
+        }
+      );
+
+      this.setData({
+        nodesCount: result.nodes.length,
+        linksCount: result.links.length,
+        droppedRows: result.meta.droppedRows,
+        buildWarnings: (result.meta.warnings || []).slice(0, 8),
+        buildError: '',
+        sankeyLinks: result.links || [],
+        sankeyNodes: result.nodes || []
+      });
+    } catch (error) {
+      this.setData({
+        nodesCount: 0,
+        linksCount: 0,
+        droppedRows: 0,
+        buildWarnings: [],
+        buildError: error && error.message ? error.message : '聚合失败',
+        sankeyLinks: [],
+        sankeyNodes: []
+      });
+    }
+
+    this.refreshInfoLogs();
+    this.drawSankey();
+  },
+
+  /**
+   * 汇总日志到“信息日志”区域。
+   */
+  refreshInfoLogs() {
+    const logs = [];
+    const rows = this.data.tableRows || [];
+    const headers = this.data.columnHeaders || [];
+    if (rows.length > 0) {
+      logs.push(`解析信息: 已加载 ${rows.length} 行，${headers.length} 列`);
+      logs.push(`解析信息: 已生成 ${this.data.nodesCount} 个节点，${this.data.linksCount} 条连线`);
+    } else {
+      logs.push('解析信息: 尚未加载数据文件');
+    }
+
+    if (this.data.parseError) {
+      logs.push(`错误: ${this.data.parseError}`);
+    }
+    if (this.data.buildError) {
+      logs.push(`错误: ${this.data.buildError}`);
+    }
+    if (this.data.droppedRows > 0) {
+      logs.push(`告警: 已跳过 ${this.data.droppedRows} 行异常数据`);
+    }
+
+    (this.data.buildWarnings || []).forEach((warning) => {
+      logs.push(`告警: ${warning}`);
+    });
+
+    this.setData({
+      infoLogs: logs.length > 0 ? logs : ['暂无日志']
+    });
+  },
+
+  /**
+   * 在小程序 canvas 上绘制简化版桑基图。
+   * 说明：
+   * - 不依赖第三方图表库，保证小程序端零额外依赖可运行
+   * - 布局规则尽量对齐 Web：左 source、右 target、按值缩放高度
+   */
+  drawSankey() {
+    const rawLinks = this.data.sankeyLinks || [];
+    const links = applyDirection(rawLinks, this.data.direction);
+    const query = wx.createSelectorQuery().in(this);
+    query.select('#sankeyCanvas').boundingClientRect();
+    query.exec((res) => {
+      const rect = res && res[0];
+      if (!rect || !rect.width || !rect.height) {
+        return;
+      }
+
+      const width = rect.width;
+      const height = rect.height;
+      const ctx = wx.createCanvasContext('sankeyCanvas', this);
+      ctx.clearRect(0, 0, width, height);
+      ctx.setFillStyle('#f7f8fa');
+      ctx.fillRect(0, 0, width, height);
+
+      const layout = buildSankeyLayout(links, width, height, {
+        nodeGap: this.data.nodeGap,
+        chartPadding: this.data.chartPadding,
+        targetAlignMode: this.data.targetAlignMode
+      });
+      if (!layout) {
+        ctx.setFillStyle('#86909c');
+        ctx.setFontSize(12);
+        ctx.fillText('暂无可预览数据', 12, 24);
+        ctx.draw();
+        return;
+      }
+
+      layout.linkSegments.forEach((segment) => {
+        ctx.setStrokeStyle('rgba(155,107,194,0.35)');
+        ctx.setLineWidth(segment.linkHeight);
+        ctx.setLineCap('round');
+        ctx.beginPath();
+        ctx.moveTo(segment.startX, segment.sy);
+        ctx.bezierCurveTo(
+          segment.controlX,
+          segment.sy,
+          segment.controlX,
+          segment.ty,
+          segment.endX,
+          segment.ty
+        );
+        ctx.stroke();
+      });
+
+      layout.sourceNames.forEach((name, index) => {
+        const node = layout.sourcePos[name];
+        const labelPlacement = getCanvasLabelPlacement(layout, true, this.data.labelPositionMode);
+        ctx.setFillStyle(getNodeColor(index));
+        ctx.fillRect(layout.leftX, node.y, layout.nodeWidth, node.h);
+        ctx.setFillStyle('#4e5969');
+        ctx.setFontSize(10);
+        ctx.setTextAlign(labelPlacement.textAlign);
+        ctx.setTextBaseline('middle');
+        ctx.fillText(name, labelPlacement.x, node.y + getNodeLabelCenterY(node.h));
+      });
+
+      layout.targetNames.forEach((name, index) => {
+        const node = layout.targetPos[name];
+        const labelPlacement = getCanvasLabelPlacement(layout, false, this.data.labelPositionMode);
+        ctx.setFillStyle(getNodeColor(index));
+        ctx.fillRect(layout.rightX, node.y, layout.nodeWidth, node.h);
+        ctx.setFillStyle('#4e5969');
+        ctx.setFontSize(10);
+        ctx.setTextAlign(labelPlacement.textAlign);
+        ctx.setTextBaseline('middle');
+        ctx.fillText(name, labelPlacement.x, node.y + getNodeLabelCenterY(node.h));
+      });
+
+      ctx.draw();
+    });
+  },
+
+  /**
+   * 小程序端目前仅支持 PNG 导出（保存到相册）。
+   */
+  onExportPng() {
+    const that = this;
+    wx.canvasToTempFilePath(
+      {
+        canvasId: 'sankeyCanvas',
+        fileType: 'png',
+        success(res) {
+          wx.saveImageToPhotosAlbum({
+            filePath: res.tempFilePath,
+            success() {
+              wx.showToast({
+                title: 'PNG 已保存到相册',
+                icon: 'success'
+              });
+            },
+            fail(err) {
+              wx.showToast({
+                title: err && err.errMsg ? '保存失败，请检查相册权限' : '保存失败',
+                icon: 'none'
+              });
+            }
+          });
+        },
+        fail() {
+          wx.showToast({
+            title: '导出 PNG 失败',
+            icon: 'none'
+          });
+        }
+      },
+      that
+    );
+  },
+
+  /**
+   * 小程序 SVG 导出：
+   * - 使用与画布一致的布局算法生成 SVG 字符串
+   * - 写入用户数据目录，支持后续转发/分享
+   */
+  onExportSvg() {
+    const rawLinks = this.data.sankeyLinks || [];
+    const links = applyDirection(rawLinks, this.data.direction);
+    if (!Array.isArray(links) || links.length === 0) {
+      wx.showToast({
+        title: '暂无可导出的数据',
+        icon: 'none'
+      });
+      return;
+    }
+
+    const query = wx.createSelectorQuery().in(this);
+    query.select('#sankeyCanvas').boundingClientRect();
+    query.exec((res) => {
+      const rect = res && res[0];
+      if (!rect || !rect.width || !rect.height) {
+        wx.showToast({
+          title: '导出 SVG 失败：画布尺寸无效',
+          icon: 'none'
+        });
+        return;
+      }
+
+      const svgText = buildSankeySvgText(links, rect.width, rect.height, {
+        nodeGap: this.data.nodeGap,
+        chartPadding: this.data.chartPadding,
+        labelPositionMode: this.data.labelPositionMode,
+        targetAlignMode: this.data.targetAlignMode
+      });
+      if (!svgText) {
+        wx.showToast({
+          title: '暂无可导出的数据',
+          icon: 'none'
+        });
+        return;
+      }
+
+      const svgFilePath = `${wx.env.USER_DATA_PATH}/sankey_${formatFileTimestamp()}.svg`;
+      wx.getFileSystemManager().writeFile({
+        filePath: svgFilePath,
+        data: svgText,
+        encoding: 'utf8',
+        success() {
+          wx.openDocument({
+            filePath: svgFilePath,
+            showMenu: true,
+            success() {
+              wx.showToast({
+                title: 'SVG 已导出',
+                icon: 'success'
+              });
+            },
+            fail() {
+              wx.setClipboardData({
+                data: svgFilePath,
+                success() {
+                  wx.showToast({
+                    title: 'SVG 已导出，路径已复制',
+                    icon: 'none'
+                  });
+                },
+                fail() {
+                  wx.showToast({
+                    title: 'SVG 已导出',
+                    icon: 'success'
+                  });
+                }
+              });
+            }
+          });
+        },
+        fail(err) {
+          wx.showToast({
+            title: `导出 SVG 失败: ${err && err.errMsg ? err.errMsg : '未知错误'}`,
+            icon: 'none'
+          });
+        }
+      });
+    });
  }
 });
--- a/miniapp/pages/index/index.wxml
+++ b/miniapp/pages/index/index.wxml
@@ -1,85 +1,149 @@
 <view class="page">
  <view class="header">
-    <image class="logo" src="/assets/icons/webicon.png" mode="aspectFill" />
-    <image class="title" src="/assets/icons/星程桑基图.svg" mode="widthFix" />
+    <image class="logo" src="../../assets/icons/webicon.png" mode="aspectFill" />
+    <image class="title" src="../../assets/icons/星程桑基图.svg" mode="widthFix" />
  </view>

  <view class="toolbar">
-    <view class="tool-item" bindtap="onToggleThemeSheet">
-      <text>选择主题</text>
-      <image class="tool-icon" src="/assets/icons/choose-color.svg" mode="aspectFit" />
+    <image class="tool-icon" src="../../assets/icons/choose-color.svg" mode="aspectFit" bindtap="onToggleThemeSheet" />
+    <image class="tool-icon upload-trigger" src="../../assets/icons/upload.svg" mode="aspectFit" bindtap="onChooseFile" />
+
+    <view class="upload-box" bindtap="onChooseFile">
+      <text class="upload-text">{{uploadMessage}}</text>
    </view>

-    <view class="tool-item">
-      <image class="tiny-icon" src="/assets/icons/content.svg" mode="aspectFit" />
-      <text>文件上传</text>
-      <image class="tool-icon" src="/assets/icons/upload.svg" mode="aspectFit" />
-    </view>
+    <view class="toolbar-spacer" />

    <view class="export-box">
-      <image class="export-main" src="/assets/icons/export.svg" mode="aspectFit" />
-      <image class="export-icon" src="/assets/icons/export-svg.svg" mode="aspectFit" />
-      <image class="export-icon" src="/assets/icons/export-png.svg" mode="aspectFit" />
+      <image class="export-main" src="../../assets/icons/export.svg" mode="aspectFit" />
+      <image class="export-icon" src="../../assets/icons/export-svg.svg" mode="aspectFit" bindtap="onExportSvg" />
+      <image class="export-icon" src="../../assets/icons/export-png.svg" mode="aspectFit" bindtap="onExportPng" />
    </view>
  </view>

-  <view class="preview-block">
-    <text class="block-title">效果预览</text>
-    <view class="preview-canvas" />
-  </view>
+  <view class="preview-panel">
+    <view class="preview-head">
+      <image class="preview-title" src="../../assets/icons/sankeyview.svg" mode="widthFix" />

-  <view class="bottom-grid">
-    <view class="block">
-      <text class="block-title">源数据</text>
-      <view class="field">
-        <view class="field-title">
-          <image src="/assets/icons/expand.svg" mode="aspectFit" />
-          <text>数据列</text>
+      <view class="preview-controls">
+        <view class="control-item">
+          <image class="control-icon" src="../../assets/icons/gap.svg" mode="aspectFit" />
+          <picker mode="selector" range="{{gapOptions}}" value="{{gapOptionIndex}}" bindchange="onChangeGap">
+            <view class="select-pill">
+              <text>{{gapOptions[gapOptionIndex]}}</text>
+              <image class="select-arrow" src="../../assets/icons/list.svg" mode="aspectFit" />
+            </view>
+          </picker>
        </view>

-        <view class="row" wx:for="{{sourceColumns}}" wx:key="*this">
-          <image src="/assets/icons/data.svg" mode="aspectFit" />
+        <view class="control-item">
+          <image class="control-icon" src="../../assets/icons/padding.svg" mode="aspectFit" />
+          <picker mode="selector" range="{{paddingOptions}}" value="{{paddingOptionIndex}}" bindchange="onChangePadding">
+            <view class="select-pill">
+              <text>{{paddingOptions[paddingOptionIndex]}}</text>
+              <image class="select-arrow" src="../../assets/icons/list.svg" mode="aspectFit" />
+            </view>
+          </picker>
+        </view>
+
+        <view class="direction-item" bindtap="onToggleDirection">
+          <view class="vertical-label">
+            <text>方</text>
+            <text>向</text>
+          </view>
+          <view class="direction-switch {{direction === 'source-to-target' ? 'on' : ''}}">
+            <text class="direction-text">{{direction === 'source-to-target' ? 'source' : 'target'}}</text>
+            <view class="direction-thumb" />
+          </view>
+        </view>
+
+        <view class="picker-item">
+          <view class="vertical-label">
+            <text>位</text>
+            <text>置</text>
+          </view>
+          <picker mode="selector" range="{{labelPositionOptionLabels}}" value="{{labelPositionIndex}}" bindchange="onChangeLabelPosition">
+            <view class="select-pill">
+              <text>{{labelPositionOptionLabels[labelPositionIndex]}}</text>
+              <image class="select-arrow" src="../../assets/icons/list.svg" mode="aspectFit" />
+            </view>
+          </picker>
+        </view>
+
+        <view class="picker-item">
+          <view class="vertical-label">
+            <text>对</text>
+            <text>齐</text>
+          </view>
+          <picker mode="selector" range="{{targetAlignOptionLabels}}" value="{{targetAlignIndex}}" bindchange="onChangeTargetAlign">
+            <view class="select-pill wide">
+              <text>{{targetAlignOptionLabels[targetAlignIndex]}}</text>
+              <image class="select-arrow" src="../../assets/icons/list.svg" mode="aspectFit" />
+            </view>
+          </picker>
+        </view>
+      </view>
+    </view>
+
+    <text wx:if="{{buildError}}" class="error-text">{{buildError}}</text>
+    <text wx:if="{{parseError}}" class="error-text">{{parseError}}</text>
+    <canvas class="preview-canvas" canvas-id="sankeyCanvas" id="sankeyCanvas" />
+  </view>
+
+  <view class="bottom-panels">
+    <view class="panel data-panel">
+      <image class="panel-title" src="../../assets/icons/data-select.svg" mode="widthFix" />
+
+      <view class="field-group">
+        <view class="field-title">
+          <image src="../../assets/icons/expand.svg" mode="aspectFit" />
+          <text>源数据(link value)</text>
+        </view>
+        <view class="row" wx:for="{{columnHeaders}}" wx:key="*this" data-index="{{index}}" bindtap="onSelectSourceData">
+          <image src="../../assets/icons/data.svg" mode="aspectFit" />
          <text class="label">{{item}}</text>
          <image
-            src="{{sourceDataIndex === index ? '/assets/icons/radiobutton.svg' : '/assets/icons/radiobutton-no.svg'}}"
+            src="{{sourceDataColumn === index ? '../../assets/icons/radiobutton.svg' : '../../assets/icons/radiobutton-no.svg'}}"
            mode="aspectFit"
          />
        </view>
      </view>

-      <view class="field">
+      <view class="field-group">
        <view class="field-title">
-          <image src="/assets/icons/expand.svg" mode="aspectFit" />
-          <text>描述列</text>
+          <image src="../../assets/icons/expand.svg" mode="aspectFit" />
+          <text>源标签(Source label)</text>
        </view>
-
-        <view class="row" wx:for="{{sourceColumns}}" wx:key="*this">
-          <image src="/assets/icons/description.svg" mode="aspectFit" />
+        <view class="row" wx:for="{{columnHeaders}}" wx:key="*this" data-index="{{index}}" bindtap="onToggleSourceDesc">
+          <image src="../../assets/icons/description.svg" mode="aspectFit" />
          <text class="label">{{item}}</text>
          <image
-            src="{{sourceDescChecked.indexOf(index) > -1 ? '/assets/icons/checkbox.svg' : '/assets/icons/checkbox-no.svg'}}"
+            src="{{sourceDescriptionColumns.indexOf(index) > -1 ? '../../assets/icons/checkbox.svg' : '../../assets/icons/checkbox-no.svg'}}"
+            mode="aspectFit"
+          />
+        </view>
+      </view>
+
+      <view class="field-group">
+        <view class="field-title">
+          <image src="../../assets/icons/expand.svg" mode="aspectFit" />
+          <text>目标标签(target label)</text>
+        </view>
+        <view class="row" wx:for="{{columnHeaders}}" wx:key="*this" data-index="{{index}}" bindtap="onToggleTargetDesc">
+          <image src="../../assets/icons/description.svg" mode="aspectFit" />
+          <text class="label">{{item}}</text>
+          <image
+            src="{{targetDescriptionColumns.indexOf(index) > -1 ? '../../assets/icons/checkbox.svg' : '../../assets/icons/checkbox-no.svg'}}"
            mode="aspectFit"
          />
        </view>
      </view>
    </view>

-    <view class="block">
-      <text class="block-title">目标数据</text>
-      <view class="field">
-        <view class="field-title">
-          <image src="/assets/icons/expand.svg" mode="aspectFit" />
-          <text>描述列</text>
-        </view>
-
-        <view class="row" wx:for="{{targetColumns}}" wx:key="*this">
-          <image src="/assets/icons/description.svg" mode="aspectFit" />
-          <text class="label">{{item}}</text>
-          <image
-            src="{{targetDescChecked.indexOf(index) > -1 ? '/assets/icons/checkbox.svg' : '/assets/icons/checkbox-no.svg'}}"
-            mode="aspectFit"
-          />
-        </view>
+    <view class="panel log-panel">
+      <image class="panel-title panel-title-log" src="../../assets/icons/information.svg" mode="widthFix" />
+      <view class="log-list">
+        <text class="log-item" wx:for="{{infoLogs}}" wx:key="index">{{item}}</text>
      </view>
    </view>
  </view>
@@ -91,7 +155,7 @@
    <text class="theme-title">选择配色主题</text>
    <view class="theme-row" wx:for="{{4}}" wx:key="index">
      <image
-        src="{{selectedThemeIndex === index ? '/assets/icons/radiobutton.svg' : '/assets/icons/radiobutton-no.svg'}}"
+        src="{{selectedThemeIndex === index ? '../../assets/icons/radiobutton.svg' : '../../assets/icons/radiobutton-no.svg'}}"
        mode="aspectFit"
      />
      <view class="theme-bar" />
--- a/miniapp/pages/index/index.wxss
+++ b/miniapp/pages/index/index.wxss
@@ -1,5 +1,8 @@
 .page {
+  min-height: 100vh;
  padding: 8px;
+  background: #f3f4f6;
+  box-sizing: border-box;
 }

 .header {
@@ -13,50 +16,77 @@
  width: 48px;
  height: 48px;
  border-radius: 12px;
+  flex-shrink: 0;
 }

 .title {
  width: 160px;
+  height: auto;
 }

 .toolbar {
  margin-top: 8px;
+  height: 38px;
  display: flex;
  align-items: center;
  gap: 6px;
-}
-
-.tool-item {
-  display: flex;
-  align-items: center;
-  gap: 3px;
-  font-size: 12px;
+  padding-left: 6px;
 }

 .tool-icon {
  width: 24px;
  height: 24px;
+  flex-shrink: 0;
 }

-.tiny-icon {
-  width: 10px;
-  height: 10px;
+.upload-trigger {
+  width: 32px;
+}
+
+.upload-box {
+  flex: 1;
+  min-width: 0;
+  height: 28px;
+  border-radius: 6px;
+  border: 0.5px solid #4e5969;
+  background: #f7f8fa;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0 6px;
+  box-sizing: border-box;
+}
+
+.upload-text {
+  width: 100%;
+  color: #4e5969;
+  font-size: 10px;
+  line-height: 1;
+  text-align: center;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.toolbar-spacer {
+  flex: 1;
+  min-width: 0;
 }

 .export-box {
-  margin-left: auto;
  background: #fff;
-  border: 1px solid #e5e6eb;
+  border: 0.5px solid #e5e6eb;
  border-radius: 4px;
  padding: 2px 4px;
  display: flex;
  align-items: center;
  gap: 4px;
+  flex-shrink: 0;
 }

 .export-main {
-  width: 10px;
-  height: 20px;
+  width: 9px;
+  height: 21px;
 }

 .export-icon {
@@ -64,44 +94,193 @@
  height: 24px;
 }

-.preview-block,
-.block {
+.preview-panel {
  margin-top: 8px;
-  border: 1px solid #fbaca3;
-  border-radius: 8px;
+  border: 0.4px solid #f99595;
+  border-radius: 6.4px;
  background: #fff;
-  padding: 4px;
+  padding: 3.2px;
+  box-sizing: border-box;
 }

-.block-title {
-  font-size: 16px;
+.preview-head {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.preview-title {
+  width: 166px;
+  height: auto;
+  flex-shrink: 0;
+}
+
+.preview-controls {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  overflow-x: auto;
+  overflow-y: hidden;
+}
+
+.preview-controls::-webkit-scrollbar {
+  display: none;
+}
+
+.control-item,
+.picker-item,
+.direction-item {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  flex-shrink: 0;
+}
+
+.control-icon {
+  width: 14px;
+  height: 14px;
+}
+
+.select-pill {
+  height: 14px;
+  border: 0.5px solid #c9aee0;
+  border-radius: 4px;
+  padding: 0 2px;
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  color: #606060;
+  font-size: 12px;
+  line-height: 1;
+  box-sizing: border-box;
+}
+
+.select-pill.wide {
+  min-width: 40px;
+}
+
+.select-arrow {
+  width: 10px;
+  height: 8px;
+}
+
+.vertical-label {
+  display: flex;
+  flex-direction: column;
+  color: #000;
+  font-size: 12px;
  font-weight: 600;
+  line-height: 1;
+}
+
+.direction-switch {
+  min-width: 43px;
+  height: 14px;
+  border-radius: 58px;
+  background: #c9cdd4;
+  padding: 1px;
+  box-sizing: border-box;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 1px;
+}
+
+.direction-switch.on {
+  background: #9b6bc2;
+}
+
+.direction-text {
+  color: #4e5969;
+  font-size: 8px;
+  line-height: 1;
+  padding: 0 1px;
+}
+
+.direction-switch.on .direction-text {
+  color: #fff;
+}
+
+.direction-thumb {
+  width: 11.67px;
+  height: 11.67px;
+  border-radius: 999px;
+  background: #fff;
+}
+
+.direction-switch.on .direction-thumb {
+  margin-left: 0;
+}
+
+.direction-switch:not(.on) {
+  flex-direction: row-reverse;
+}
+
+.error-text {
+  margin-top: 4px;
+  color: #cb272d;
+  font-size: 12px;
 }

 .preview-canvas {
-  margin-top: 4px;
-  min-height: 300px;
-  background: #f7f8fa;
+  margin-top: 3px;
+  width: 100%;
+  height: 371px;
  border-radius: 4px;
+  background: #f7f8fa;
 }

-.bottom-grid {
+.bottom-panels {
  margin-top: 8px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
 }

-.field {
-  margin-top: 8px;
+.panel {
+  border: 1px solid #f7e0e0;
+  border-radius: 16px;
+  background: #fff;
+  padding: 8px;
+  box-sizing: border-box;
+}
+
+.data-panel {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.log-panel {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.panel-title {
+  width: 128px;
+  height: auto;
+}
+
+.panel-title-log {
+  width: 123px;
+}
+
+.field-group {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
 }

 .field-title {
  display: flex;
  align-items: center;
  gap: 4px;
+  color: #1d2129;
  font-size: 14px;
-  font-weight: 600;
+  font-weight: 500;
 }

 .field-title image {
@@ -114,32 +293,54 @@
  border-bottom: 1px solid #c9cdd4;
  display: flex;
  align-items: center;
-  gap: 6px;
-  padding-bottom: 6px;
-  margin-top: 4px;
+  gap: 8px;
+  padding-bottom: 8px;
+  box-sizing: border-box;
 }

 .row image {
  width: 18px;
  height: 18px;
+  flex-shrink: 0;
 }

 .label {
  flex: 1;
+  min-width: 0;
  color: #86909c;
  font-size: 12px;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.log-list {
+  flex: 1;
+  min-height: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  overflow: auto;
+}
+
+.log-item {
+  color: #1d2129;
+  font-size: 12px;
+  line-height: 1.4;
 }

 .footer {
-  margin-top: 8px;
+  margin-top: 6px;
  color: #86909c;
  font-size: 14px;
+  line-height: 1.3;
 }

 .theme-sheet-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.2);
+  z-index: 10;
 }

 .theme-sheet {
@@ -150,6 +351,7 @@
  background: #fff;
  border-radius: 16px 16px 0 0;
  padding: 12px;
+  z-index: 11;
 }

 .theme-title {
--- a/miniapp/sitemap.json
+++ b/miniapp/sitemap.json
@@ -1,4 +1,9 @@
 {
  "desc": "星程桑基图小程序",
-  "rules": []
+  "rules": [
+    {
+      "action": "allow",
+      "page": "*"
+    }
+  ]
 }
--- a/miniapp/utils/sankey.js
+++ b/miniapp/utils/sankey.js
@@ -0,0 +1,320 @@
+/**
+ * 统一清洗文本，避免空格导致节点重复。
+ */
+function normalizeText(value) {
+  return String(value || '').trim();
+}
+
+/**
+ * 尝试懒加载 xlsx 解析库。
+ * 说明：
+ * - 小程序若未完成 npm 构建，此处会拿不到模块
+ * - 使用缓存避免每次解析都重复 require
+ */
+let cachedXlsxModule;
+function getXlsxModule() {
+  if (cachedXlsxModule !== undefined) {
+    return cachedXlsxModule;
+  }
+  try {
+    cachedXlsxModule = require('xlsx');
+  } catch (error) {
+    cachedXlsxModule = null;
+  }
+  return cachedXlsxModule;
+}
+
+/**
+ * 将二维数组统一整理为 headers + rows 结构。
+ * 约定第一行为表头，后续行为数据行。
+ */
+function toRawTable(rows) {
+  if (!Array.isArray(rows) || rows.length === 0) {
+    return { headers: [], rows: [] };
+  }
+
+  const firstRow = Array.isArray(rows[0]) ? rows[0] : [];
+  const maxColumns = rows.reduce((max, row) => {
+    const length = Array.isArray(row) ? row.length : 0;
+    return Math.max(max, length);
+  }, firstRow.length);
+
+  const headers = Array.from({ length: maxColumns }, (_, index) => {
+    const header = normalizeText(firstRow[index] || '');
+    return header || `列${index + 1}`;
+  });
+
+  const dataRows = rows.slice(1).map((row) => {
+    const safeRow = Array.isArray(row) ? row : [];
+    return Array.from({ length: maxColumns }, (_, index) => normalizeText(safeRow[index] || ''));
+  });
+
+  return { headers, rows: dataRows };
+}
+
+/**
+ * 解析数字，支持千分位。
+ */
+function parseNumericValue(text) {
+  const normalized = normalizeText(text).replace(/,/g, '');
+  if (!normalized) {
+    return null;
+  }
+  const parsed = Number(normalized);
+  if (Number.isNaN(parsed)) {
+    return null;
+  }
+  return parsed;
+}
+
+/**
+ * 将单元格值格式化为日志可读文本。
+ */
+function formatCellValueForWarning(value) {
+  const text = String(value || '');
+  return text.length > 0 ? text : '(空)';
+}
+
+/**
+ * 组装“列位置 + 列名 + 原始值”的调试文本。
+ */
+function buildColumnDebugText(row, headers, columns) {
+  if (!Array.isArray(columns) || columns.length === 0) {
+    return '未选择列';
+  }
+  return columns
+    .map((columnIndex) => {
+      const headerName = headers[columnIndex] || `列${columnIndex + 1}`;
+      const rawValue = row[columnIndex] || '';
+      return `第 ${columnIndex + 1} 列（${headerName}）="${formatCellValueForWarning(rawValue)}"`;
+    })
+    .join('，');
+}
+
+/**
+ * 简单 CSV 解析（支持双引号与双引号转义）。
+ */
+function parseCsvText(csvText) {
+  const text = String(csvText || '').replace(/^\uFEFF/, '');
+  const rows = [];
+  let row = [];
+  let cell = '';
+  let inQuotes = false;
+
+  for (let i = 0; i < text.length; i += 1) {
+    const ch = text[i];
+    const next = text[i + 1];
+    if (ch === '"') {
+      if (inQuotes && next === '"') {
+        cell += '"';
+        i += 1;
+      } else {
+        inQuotes = !inQuotes;
+      }
+      continue;
+    }
+
+    if (!inQuotes && ch === ',') {
+      row.push(cell);
+      cell = '';
+      continue;
+    }
+
+    if (!inQuotes && (ch === '\n' || ch === '\r')) {
+      if (ch === '\r' && next === '\n') {
+        i += 1;
+      }
+      row.push(cell);
+      cell = '';
+      rows.push(row);
+      row = [];
+      continue;
+    }
+
+    cell += ch;
+  }
+
+  row.push(cell);
+  rows.push(row);
+
+  const normalizedRows = rows
+    .map((items) => items.map((item) => normalizeText(item)))
+    .filter((items) => items.some((item) => item.length > 0));
+
+  return toRawTable(normalizedRows);
+}
+
+/**
+ * 解析 xls/xlsx 二进制内容。
+ */
+function parseXlsxBuffer(buffer) {
+  const xlsx = getXlsxModule();
+  if (!xlsx) {
+    throw new Error('当前环境未启用 xlsx 解析，请先在开发者工具执行“构建 npm”');
+  }
+
+  const workbook = xlsx.read(buffer, { type: 'array' });
+  const firstSheetName = workbook.SheetNames[0];
+  if (!firstSheetName) {
+    throw new Error('Excel 文件中没有工作表');
+  }
+
+  const sheet = workbook.Sheets[firstSheetName];
+  const rows = xlsx.utils.sheet_to_json(sheet, {
+    header: 1,
+    raw: false,
+    defval: ''
+  });
+  return toRawTable(rows);
+}
+
+/**
+ * 按文件名后缀自动分流解析器。
+ */
+function parseTableByFileName(fileName, payload) {
+  const lowerName = String(fileName || '').toLowerCase();
+  if (lowerName.endsWith('.csv')) {
+    return parseCsvText(String(payload || ''));
+  }
+  if (lowerName.endsWith('.xlsx') || lowerName.endsWith('.xls')) {
+    return parseXlsxBuffer(payload);
+  }
+  throw new Error('仅支持 .csv / .xlsx / .xls 文件');
+}
+
+/**
+ * 构建 source 名称。
+ */
+function buildSourceName(row, config) {
+  if (!Array.isArray(config.sourceDescriptionColumns) || config.sourceDescriptionColumns.length === 0) {
+    return normalizeText(row[config.sourceDataColumn] || '');
+  }
+  const parts = config.sourceDescriptionColumns
+    .map((column) => normalizeText(row[column] || ''))
+    .filter((item) => item.length > 0);
+  return parts.join(config.delimiter || '-');
+}
+
+/**
+ * 构建 target 名称，支持向下补全。
+ */
+function buildTargetName(row, config, lastNonEmptyTargetValueByColumn) {
+  const parts = (config.targetDescriptionColumns || [])
+    .map((column) => {
+      const raw = normalizeText(row[column] || '');
+      if (raw.length > 0) {
+        lastNonEmptyTargetValueByColumn[column] = raw;
+        return raw;
+      }
+      return lastNonEmptyTargetValueByColumn[column] || '';
+    })
+    .filter((item) => item.length > 0);
+  return parts.join(config.delimiter || '-');
+}
+
+/**
+ * 与 Web 端保持一致的聚合规则。
+ */
+function buildSankeyData(table, config) {
+  if (config.sourceDataColumn === null || config.sourceDataColumn === undefined) {
+    throw new Error('必须选择源数据列');
+  }
+  if (!Array.isArray(config.targetDescriptionColumns) || config.targetDescriptionColumns.length === 0) {
+    throw new Error('必须至少选择一个目标描述列');
+  }
+
+  const sourceDataColumnIndex = config.sourceDataColumn;
+  const sourceDataColumnName = table.headers[sourceDataColumnIndex] || `列${sourceDataColumnIndex + 1}`;
+  const linkValueMap = {};
+  const warnings = [];
+  let droppedRows = 0;
+  const lastNonEmptyTargetValueByColumn = {};
+
+  (table.rows || []).forEach((row, rowIndex) => {
+    const excelRow = rowIndex + 2;
+    const sourceCellRaw = row[sourceDataColumnIndex] || '';
+    const sourceValue = parseNumericValue(sourceCellRaw);
+
+    if (sourceValue === null) {
+      warnings.push(
+        `第 ${excelRow} 行, 第 ${sourceDataColumnIndex + 1} 列（${sourceDataColumnName}）: 源数据不是有效数字，原始值="${formatCellValueForWarning(sourceCellRaw)}"，已跳过`
+      );
+      droppedRows += 1;
+      return;
+    }
+
+    const sourceName = buildSourceName(row, config);
+    if (!sourceName) {
+      warnings.push(
+        `第 ${excelRow} 行: 源描述为空，字段=${buildColumnDebugText(
+          row,
+          table.headers || [],
+          config.sourceDescriptionColumns || []
+        )}，已跳过`
+      );
+      droppedRows += 1;
+      return;
+    }
+
+    const targetName = buildTargetName(row, config, lastNonEmptyTargetValueByColumn);
+    if (!targetName) {
+      warnings.push(
+        `第 ${excelRow} 行: 目标描述为空，字段=${buildColumnDebugText(
+          row,
+          table.headers || [],
+          config.targetDescriptionColumns || []
+        )}，且无可继承的上方值，已跳过`
+      );
+      droppedRows += 1;
+      return;
+    }
+
+    const key = `${sourceName}@@${targetName}`;
+    linkValueMap[key] = (linkValueMap[key] || 0) + sourceValue;
+  });
+
+  const links = [];
+  const sourceSet = {};
+  const targetSet = {};
+  Object.keys(linkValueMap).forEach((key) => {
+    const pair = key.split('@@');
+    const source = pair[0];
+    const target = pair[1];
+    if (!source || !target) {
+      return;
+    }
+    sourceSet[source] = true;
+    targetSet[target] = true;
+    links.push({
+      source,
+      target,
+      value: linkValueMap[key]
+    });
+  });
+
+  const nodes = [];
+  Object.keys(sourceSet).forEach((name) => {
+    nodes.push({ name, kind: 'source' });
+  });
+  Object.keys(targetSet).forEach((name) => {
+    if (!sourceSet[name]) {
+      nodes.push({ name, kind: 'target' });
+    }
+  });
+
+  return {
+    nodes,
+    links,
+    meta: {
+      droppedRows,
+      warnings
+    }
+  };
+}
+
+module.exports = {
+  parseCsvText,
+  parseXlsxBuffer,
+  parseTableByFileName,
+  buildSankeyData
+};