feat(frontend): 首页信息流与两大核心界面重构

- index.vue: 移除 tabs 单选改为五区块纵向信息流（Hero/排期/歌曲/投稿/消息）
  新增 scrollToSection 平滑滚动与投稿成功自动跳转；为移动端底部导航预留 pb-24
- ScheduleList.vue: 移除左右分栏改为日期横条+时段分组紧凑卡片
  序号采用 28px w900 紫粉蓝渐变 bg-clip-text；卡片三态状态标签色区分
- RequestForm.vue: 序号选择从 pill 升级为 40×40 方格三态（free/taken/selected）
  taken 态删除线+灰色；selected 三色渐变+scale1.05；选中显示「已锁定第N首」提示

app/components/Songs/RequestForm.vue

@@ -176,19 +176,27 @@
               :key="item.seq"
               type="button"
               :class="[
-                'sequence-pill',
+                'seq',
-                item.taken ? 'taken' : 'free',
+                item.taken ? 'seq-taken' : '',
-                expectedPlaySequence === String(item.seq) ? 'selected' : ''
+                expectedPlaySequence === String(item.seq) ? 'seq-selected' : ''
               ]"
               :disabled="item.taken"
-              :title="item.taken ? getTakenSequenceTitle(item.seq) : ''"
+              :title="getTakenSequenceTitle(item.seq)"
               @click="chooseExpectedPlaySequence(item.seq)"
             >
               {{ item.seq }}
             </button>
           </div>
 
-          <div v-if="selectedExpectedPlayDate" class="sequence-hint">绿色可选，红色已占用</div>
+          <div v-if="selectedExpectedPlayDate" class="sequence-hint">🟣 可选（紫粉蓝选中） · ⚪ 已占用（灰色带删除线）</div>
+          <div
+            v-if="selectedExpectedPlayDate && expectedPlaySequence"
+            class="sequence-locked"
+            style="margin-top:14px; display:inline-flex; align-items:center; gap:8px; padding:10px 14px; border-radius:8px; background:linear-gradient(90deg, rgba(168,85,247,.08), rgba(236,72,153,.08), rgba(59,130,246,.08)); border:1px solid rgba(168,85,247,.2); color:#7C3AED; font-size:13px; font-weight:700;"
+          >
+            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>
+            已锁定 第 {{ expectedPlaySequence }} 首 位置
+          </div>
         </div>
 
         <!-- 搜索结果容器 -->
@@ -3126,47 +3134,55 @@ defineExpose({
 }
 
 .sequence-grid {
-  display: flex;
+  display: grid;
-  flex-wrap: wrap;
+  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
-  gap: 0.5rem;
+  gap: 8px;
+  margin-top: 12px;
 }
 
-.sequence-pill {
+.seq {
-  height: 28px;
+  width: 40px;
-  min-width: 28px;
+  height: 40px;
-  padding: 0 10px;
+  display: inline-flex;
-  border-radius: 10px;
+  align-items: center;
-  border: 1px solid var(--border-primary);
+  justify-content: center;
-  background: rgba(0, 0, 0, 0.25);
+  border-radius: 8px;
-  color: rgba(255, 255, 255, 0.85);
+  background: #fff;
-  font-family: 'MiSans', sans-serif;
+  border: 1.5px solid #d1d5db;
-  font-weight: 700;
+  color: #111827;
-  font-size: 12px;
+  font-size: 16px;
-  transition: all 0.2s ease;
+  font-weight: 800;
+  transition: all 0.12s ease;
+  cursor: pointer;
 }
 
-.sequence-pill.free {
+.seq:hover:not(:disabled) {
-  border-color: rgba(16, 185, 129, 0.35);
+  border-color: #4338ca;
-  background: rgba(16, 185, 129, 0.08);
+  color: #4338ca;
-  color: rgba(16, 185, 129, 0.95);
+  transform: scale(1.03);
 }
 
-.sequence-pill.taken {
+.seq-taken {
-  border-color: rgba(239, 68, 68, 0.35);
+  background: #f3f4f6;
-  background: rgba(239, 68, 68, 0.08);
+  border-color: #e5e7eb;
-  color: rgba(239, 68, 68, 0.95);
+  color: #9ca3af;
+  text-decoration: line-through;
   cursor: not-allowed;
 }
 
-.sequence-pill.selected {
+.seq-selected {
-  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
+  background: linear-gradient(135deg, #a855f7 0%, #ec4899 50%, #3b82f6 100%);
-  border-color: rgba(59, 130, 246, 0.6);
+  color: #fff;
+  border-color: transparent;
+  box-shadow: 0 6px 16px rgba(168, 85, 247, 0.35);
+  transform: scale(1.05);
 }
 
 .sequence-hint {
   font-size: 11px;
   font-weight: 600;
   color: rgba(255, 255, 255, 0.55);
+  margin-top: 8px;
 }
 
 .search-section {

app/pages/index.vue

@@ -1,36 +1,8 @@
 <template>
-  <div class="home">
+  <div class="home pb-24 lg:pb-0">
-    <div class="ellipse-effect" />
     <div class="main-content">
-      <div class="top-bar">
+      <!-- 右上角浮动用户操作区（简化版，仅保留 user-section） -->
-        <div class="logo-section">
+      <div class="user-actions-floating">
-          <NuxtLink class="logo-link" to="/">
-            <img
-              alt="VoiceHub Logo"
-              class="logo-image"
-              :src="logo"
-              width="90"
-              height="90"
-              decoding="async"
-              fetchpriority="high"
-            >
-          </NuxtLink>
-          <!-- 横线和学校logo -->
-          <div v-if="schoolLogoHomeUrl && schoolLogoHomeUrl.trim()" class="logo-divider-container">
-            <div class="logo-divider" />
-            <img
-              :src="proxiedSchoolLogoUrl"
-              alt="学校Logo"
-              class="school-logo"
-              width="200"
-              height="80"
-              decoding="async"
-              fetchpriority="high"
-            >
-          </div>
-        </div>
-
-        <!-- 用户信息区域 -->
         <div class="user-section">
           <ClientOnly>
             <div v-if="isClientAuthenticated" class="user-info">
@@ -85,95 +57,60 @@
         </div>
       </div>
 
-      <div v-if="siteTitle" class="site-title">
+      <!-- Section Hero -->
-        <div class="title-container">
+      <section id="hero-section" class="hero-block">
-          <h2 class="main-title">{{ siteTitle }}</h2>
+        <div class="hero-left">
-          <div class="title-divider" />
+          <h1 class="hero-title">{{ siteTitle }}</h1>
-          <span class="sub-title">VoiceHub 校园广播系统</span>
+          <p class="hero-subtitle">下周校园，听你的。</p>
-        </div>
+
+          <div class="hero-cta">
+            <button
+              class="bg-gradient-to-r from-purple-500 via-pink-500 to-blue-500 text-white px-6 py-3 rounded-lg font-bold shadow-lg hover:shadow-xl transition-shadow"
+              @click="scrollToSection('request-section')"
+            >
+              立即点歌
+            </button>
+            <button
+              class="border border-gray-300 text-gray-700 px-6 py-3 rounded-lg font-bold hover:bg-gray-50"
+              @click="scrollToSection('schedule-section')"
+            >
+              查看排期
+            </button>
           </div>
 
-      <!-- 中间主体内容区域 -->
+          <div class="status-info">
-      <div class="content-area">
+            <span>
-        <!-- 选项卡区域 -->
+              {{ isRequestOpen ? '当前投稿开放' : '当前投稿关闭' }} · 共 {{ songCount || 0 }} 首投稿 · {{ scheduleCount || 0 }} 首已定排期
-        <div class="tabs-row">
-          <div
-            :class="{ active: activeTab === 'schedule' }"
-            class="section-tab schedule-tab"
-            @click="handleTabClick('schedule')"
-          >
-            <Icon class="tab-icon" name="calendar" :size="20" />
-            <span class="tab-text">播出排期</span>
-          </div>
-          <div
-            :class="{ active: activeTab === 'songs' }"
-            class="section-tab songs-tab"
-            @click="handleTabClick('songs')"
-          >
-            <Icon class="tab-icon" name="music" :size="20" />
-            <span class="tab-text">歌曲列表</span>
-          </div>
-          <div
-            :class="{ active: activeTab === 'request' }"
-            class="section-tab request-tab"
-            @click="handleTabClick('request')"
-          >
-            <Icon class="tab-icon" name="search" :size="20" />
-            <span class="tab-text">投稿歌曲</span>
-          </div>
-          <ClientOnly>
-            <div
-              ref="notificationTabRef"
-              :class="{ active: activeTab === 'notification', disabled: !isClientAuthenticated }"
-              class="section-tab"
-              data-tab="notification"
-              @click="isClientAuthenticated ? handleTabClick('notification') : showLoginNotice()"
-            >
-              <div class="icon-wrapper">
-                <Icon class="tab-icon" name="message-circle" :size="20" />
-                <span
-                  v-if="isClientAuthenticated && hasUnreadNotifications"
-                  class="notification-badge-tab"
-                />
-              </div>
-              <span class="tab-text">
-                消息
-                <span
-                  v-if="isClientAuthenticated && hasUnreadNotifications"
-                  class="notification-badge-desktop"
-                />
             </span>
           </div>
-            <template #fallback>
-              <div class="section-tab disabled" data-tab="notification">
-                <Icon class="tab-icon" name="message-circle" :size="20" />
-                <span class="tab-text">消息</span>
-              </div>
-            </template>
-          </ClientOnly>
         </div>
 
-        <!-- 内容区域 -->
+        <div id="hero-illustration-slot" class="w-full max-w-sm"></div>
-        <div class="tab-content-container">
+      </section>
+
+      <!-- Section Schedule -->
+      <section id="schedule-section" class="content-block">
+        <div class="section-header">
+          <h2>本周排期</h2>
+          <span class="sub">播出时间表</span>
+        </div>
         <ClientOnly>
-            <!-- 播出排期内容 -->
-            <div v-if="activeTab === 'schedule'" key="schedule" class="tab-pane schedule-tab-pane">
-              <div class="full-width">
           <SongsScheduleList
             :error="error"
             :loading="loading"
             :schedules="publicSchedules"
             @semester-change="handleSemesterChange"
           />
-              </div>
+        </ClientOnly>
+      </section>
 
-              <!-- 用户使用指南组件 -->
+      <!-- Section Songs -->
-              <UserTutorial />
+      <section id="songs-section" class="content-block">
+        <div class="section-header">
+          <h2>热门投稿</h2>
+          <span class="sub">为喜欢的歌投票</span>
         </div>
-
+        <ClientOnly>
-            <!-- 歌曲列表内容 -->
-            <div v-else-if="activeTab === 'songs'" key="songs" class="tab-pane">
-              <div class="song-list-container">
           <SongsSongList
             :error="error"
             :is-admin="isAdmin"
@@ -186,37 +123,38 @@
             @request-replay="handleRequestReplay"
             @semester-change="handleSemesterChange"
           />
-              </div>
+        </ClientOnly>
-            </div>
+      </section>
 
-            <!-- 投稿歌曲内容 -->
+      <!-- Section Request -->
-            <div v-else-if="activeTab === 'request'" key="request" class="tab-pane request-pane">
+      <section id="request-section" class="content-block">
+        <div class="section-header">
+          <h2>投稿歌曲</h2>
+          <span class="sub" @click="showRules = true">点歌规则</span>
+        </div>
+        <ClientOnly>
+          <div v-if="!isClientAuthenticated" class="login-required-container">
+            <div class="login-required-content">
+              <Lock class="login-icon" :size="48" />
+              <h3>登录后投稿</h3>
+              <p>登录后可选择期望日期和播出位置</p>
+              <button class="login-button" @click="navigateToLogin">立即登录</button>
+            </div>
+          </div>
           <SongsRequestForm
+            v-else
             ref="requestFormRef"
             :loading="loading"
             @request="handleRequest"
             @vote="handleVote"
           />
-            </div>
+        </ClientOnly>
+      </section>
 
-            <!-- 通知内容 -->
+      <!-- Section Notification -->
-            <div
+      <section id="notification-section" class="content-block">
-              v-else-if="activeTab === 'notification'"
+        <div class="section-header">
-              key="notification"
+          <h2>我的消息</h2>
-              class="tab-pane notification-pane"
-            >
-              <div v-if="!isClientAuthenticated" class="login-required-container">
-                <div class="login-required-content">
-                  <Lock class="login-icon" :size="48" />
-                  <h3>需要登录</h3>
-                  <p>您需要登录才能查看通知</p>
-                  <button class="login-button" @click="navigateToLogin">立即登录</button>
-                </div>
-              </div>
-              <div v-else class="notification-container">
-                <!-- 标题和设置按钮 -->
-                <div class="notification-header">
-                  <h2 class="notification-title">通知中心</h2>
           <button class="settings-icon" @click="toggleNotificationSettings">
             <svg
               fill="none"
@@ -236,7 +174,16 @@
             </svg>
           </button>
         </div>
-
+        <ClientOnly>
+          <div v-if="!isClientAuthenticated" class="login-required-container">
+            <div class="login-required-content">
+              <Lock class="login-icon" :size="48" />
+              <h3>需要登录</h3>
+              <p>您需要登录才能查看通知</p>
+              <button class="login-button" @click="navigateToLogin">立即登录</button>
+            </div>
+          </div>
+          <div v-else class="notification-container">
             <!-- 通知列表 -->
             <div class="notification-list">
               <div v-if="notificationsLoading" class="loading-indicator">
@@ -537,10 +484,8 @@
               @confirm="handleConfirmAction"
             />
           </div>
-            </div>
         </ClientOnly>
-        </div>
+      </section>
-      </div>
 
       <!-- 页脚信息显示 -->
       <SiteFooter />
@@ -1273,12 +1218,10 @@ const handleRequest = async (songData, done) => {
         await requestFormRef.value.refreshSubmissionStatus()
       }
 
-      // 如果当前在歌曲列表页，自动切换到该页面
+      // 投稿成功后自动滚动到歌曲列表
-      if (activeTab.value !== 'songs') {
       setTimeout(() => {
-          handleTabClick('songs')
+        scrollToSection('songs-section')
       }, 500)
-      }
 
       if (typeof done === 'function') done(true)
       return true
@@ -1523,9 +1466,15 @@ const vRipple = {
   }
 }
 
-// 处理标签点击事件，添加动画效果
+// 处理标签点击事件（@deprecated 保留以防它处引用，页面现已改为纵向区块无标签切换）
 const handleTabClick = (tab) => {
-  activeTab.value = tab
+  // activeTab.value = tab
+}
+
+// 滚动到指定区块
+const scrollToSection = (id) => {
+  const el = document.getElementById(id)
+  if (el) el.scrollIntoView({ behavior: 'smooth', block: 'start' })
 }
 
 // 添加导航到登录页面的方法
@@ -1650,6 +1599,15 @@ if (
   pointer-events: none;
 }
 
+/* 右上角浮动用户操作区 */
+.user-actions-floating {
+  position: relative;
+  z-index: 100;
+  display: flex;
+  justify-content: flex-end;
+  margin-bottom: 16px;
+}
+
 /* 顶部区域样式 */
 .top-bar {
   display: flex;
@@ -3659,4 +3617,18 @@ if (
   transform: translateY(-2px);
   box-shadow: 0 5px 15px rgba(0, 67, 248, 0.3);
 }
+
+/* ============ 新增纵向五区块样式 ============ */
+.home { width:100%; flex:1; background: var(--bg-primary, #FFFFFF); padding: 0; color: var(--text-primary, #111827); min-height:100vh; }
+.main-content { max-width: 1200px; margin: 0 auto; padding: 24px 16px 32px; }
+.hero-block { padding: 48px 0 24px; display: flex; flex-direction: column; gap: 32px; }
+@media (min-width: 1024px) { .hero-block { flex-direction: row; align-items: center; justify-content: space-between; } }
+.hero-title { font-size: 44px; font-weight: 900; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 12px; }
+.hero-subtitle { font-size: 18px; color: var(--text-secondary, #4B5563); font-weight: 500; margin-bottom: 24px; }
+.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
+.status-info { display: inline-flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--bg-secondary, #F9FAFB); border: 1px solid var(--border-primary, #E5E7EB); border-radius: 8px; font-size: 13px; color: var(--text-secondary); font-weight: 500; }
+.content-block { padding: 28px 0; border-top: 1px solid var(--border-primary, #E5E7EB); }
+.section-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 20px; }
+.section-header h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.01em; }
+.section-header .sub { font-size: 13px; color: var(--text-tertiary, #6B7280); font-weight: 500; cursor: pointer; }
 </style>