refactor：删除已弃用的组件和样式，迁移到 Tailwind CSS

- 改进项目页面、网站页面、友链页面
- 从 styles.css 中移除全局样式。
- 添加 tailwind.config.ts 以配置 Tailwind CSS。
- 更新 tsconfig.json，加入 Vue 组件的新路径映射。

app/components/FooterSection.vue

@@ -0,0 +1,125 @@
+<template>
+    <footer class="card text-center mt-auto w-full flex flex-col gap-1">
+        <!-- 一言 -->
+        <p class="text-text-muted text-sm m-0 italic" v-if="showHitokoto && quote">
+            「{{ quote }}」<span v-if="from" class="ml-1.5">—— {{ from }}</span>
+        </p>
+
+        <!-- 访问统计 -->
+        <p class="text-text-muted text-xs m-0" v-if="showStats && !statsError">
+            👁️ {{ visitors }} · 📊 {{ pageviews }}
+        </p>
+
+        <!-- 备案信息 -->
+        <p class="text-text-muted text-xs m-0" v-if="contact.beian">
+            <a :href="contact.beianLink || 'https://beian.miit.gov.cn/'" target="_blank" rel="noreferrer"
+                class="opacity-85 transition-all duration-200 hover:text-primary hover:opacity-100">
+                {{ contact.beian }}
+            </a>
+        </p>
+
+        <!-- 框架与技术栈信息 -->
+        <p class="text-text-muted text-xs m-0">
+            Powered by
+            <a href="https://nuxt.com" target="_blank" rel="noreferrer"
+                class="text-primary hover:text-accent transition-colors">Nuxt 4</a>
+            ·
+            <a href="https://tailwindcss.com" target="_blank" rel="noreferrer"
+                class="text-primary hover:text-accent transition-colors">Tailwind CSS</a>
+            ·
+            <a href="https://vuejs.org" target="_blank" rel="noreferrer"
+                class="text-primary hover:text-accent transition-colors">Vue 3</a>
+        </p>
+
+        <!-- 自定义 HTML -->
+        <div v-if="contact.customHtml" v-html="contact.customHtml"></div>
+    </footer>
+</template>
+
+<script setup>
+import { onMounted, ref } from "vue";
+import { useRuntimeConfig } from "#imports";
+import siteConfig from "~/config/siteConfig";
+const props = defineProps({ contact: Object });
+const config = useRuntimeConfig();
+const quote = ref("");
+const from = ref("");
+const pageviews = ref(0);
+const visitors = ref(0);
+const statsError = ref(true);
+const showHitokoto = siteConfig.footer?.hitokoto?.enable;
+const showStats = ref(siteConfig.umami?.enable);
+
+const buildHitokotoUrl = () => {
+    const type = siteConfig.footer?.hitokoto?.type;
+    const url = new URL("https://v1.hitokoto.cn/");
+    if (Array.isArray(type)) {
+        type.filter(Boolean).forEach((t) => url.searchParams.append("c", t));
+    } else if (typeof type === "string") {
+        type.split("&")
+            .map((t) => t.trim())
+            .filter(Boolean)
+            .forEach((t) => url.searchParams.append("c", t));
+    }
+    return url.toString();
+};
+
+const fetchHitokoto = async () => {
+    try {
+        const resp = await fetch(buildHitokotoUrl());
+        const data = await resp.json();
+        quote.value = data.hitokoto || "";
+        from.value = data.from || "";
+    } catch (e) {
+        console.warn("Hitokoto fetch failed", e);
+    }
+};
+
+const fetchStats = async () => {
+    try {
+        if (!siteConfig.umami?.apiBase || !siteConfig.umami?.websiteId) {
+            return;
+        }
+        const apiBase = siteConfig.umami.apiBase;
+        const websiteId = siteConfig.umami.websiteId;
+        const apiKey = config.public.umamiApiKey;
+
+        if (!apiKey) return;
+
+        // 获取统计数据
+        const endAt = Date.now();
+        const startAt = new Date(siteConfig.siteMeta.startDate).getTime();
+
+        const resp = await fetch(`${apiBase}/v1/websites/${websiteId}/stats?startAt=${startAt}&endAt=${endAt}`, {
+            headers: {
+                Authorization: `Bearer ${apiKey}`,
+            },
+        });
+
+        if (!resp.ok) {
+            console.warn(`Stats API returned ${resp.status}`);
+            statsError.value = true;
+            return;
+        }
+
+        const data = await resp.json();
+        if (data) {
+            statsError.value = false;
+            pageviews.value = data.pageviews;
+            visitors.value = data.visitors;
+        }
+
+        if (pageviews.value === 0 && visitors.value === 0) {
+            showStats.value = false;
+        }
+    } catch (e) {
+        statsError.value = true;
+        console.debug("Stats fetch failed (this is normal if blocked by ad blocker):", e.message);
+    }
+};
+
+onMounted(() => {
+    if (showHitokoto) fetchHitokoto();
+    if (showStats.value) fetchStats();
+});
+</script>