daycard-app/app/src/main/res/layout/activity_detail.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 详情页：左右分栏布局（参考生产项目），左侧海报 + 右侧信息/操作 -->
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/activity_detail_bg">

    <!-- 全屏背景图（影片横版剧照） -->
    <ImageView
        android:id="@+id/ivBackdrop"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:scaleType="centerCrop"
        android:contentDescription="@string/app_name"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <!-- 渐变遮罩：左浅右深，保证右侧文字可读 -->
    <View
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@drawable/bg_detail_scrim"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <!-- 左侧竖版海报 -->
    <ImageView
        android:id="@+id/ivPoster"
        android:layout_width="@dimen/qb_px_280"
        android:layout_height="@dimen/qb_px_400"
        android:scaleType="centerCrop"
        android:background="@drawable/bg_poster_rounded"
        android:clipToOutline="true"
        android:outlineProvider="background"
        android:contentDescription="@string/app_name"
        android:layout_marginStart="@dimen/qb_px_50"
        android:layout_marginTop="@dimen/qb_px_50"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <!-- 标题 -->
    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/qb_px_36"
        android:layout_marginEnd="@dimen/qb_px_50"
        android:textColor="@color/text_primary"
        android:textSize="@dimen/mg_sp_32"
        android:textStyle="bold"
        android:singleLine="true"
        android:ellipsize="end"
        android:includeFontPadding="false"
        app:layout_constraintStart_toEndOf="@id/ivPoster"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="@id/ivPoster" />

    <!-- 元信息：分类 · 地区 · 年份 · 时长 -->
    <TextView
        android:id="@+id/tvType"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/qb_px_36"
        android:layout_marginEnd="@dimen/qb_px_50"
        android:layout_marginTop="@dimen/qb_px_16"
        android:textColor="@color/text_secondary"
        android:textSize="@dimen/mg_sp_20"
        android:singleLine="true"
        android:ellipsize="end"
        android:includeFontPadding="false"
        app:layout_constraintStart_toEndOf="@id/ivPoster"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvTitle" />

    <!-- 演员 -->
    <TextView
        android:id="@+id/tvActor"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/qb_px_36"
        android:layout_marginEnd="@dimen/qb_px_50"
        android:layout_marginTop="@dimen/qb_px_12"
        android:textColor="@color/text_secondary"
        android:textSize="@dimen/mg_sp_20"
        android:maxLines="2"
        android:ellipsize="end"
        android:includeFontPadding="false"
        app:layout_constraintStart_toEndOf="@id/ivPoster"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvType" />

    <!-- 简介 -->
    <TextView
        android:id="@+id/tvIntro"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/qb_px_36"
        android:layout_marginEnd="@dimen/qb_px_50"
        android:layout_marginTop="@dimen/qb_px_12"
        android:textColor="@color/text_tertiary"
        android:textSize="@dimen/mg_sp_20"
        android:maxLines="3"
        android:ellipsize="end"
        android:lineSpacingExtra="@dimen/qb_px_4"
        android:includeFontPadding="false"
        app:layout_constraintStart_toEndOf="@id/ivPoster"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvActor" />

    <!-- 播放按钮 -->
    <TextView
        android:id="@+id/btnPlay"
        android:layout_width="@dimen/qb_px_180"
        android:layout_height="@dimen/qb_px_56"
        android:layout_marginStart="@dimen/qb_px_36"
        android:layout_marginTop="@dimen/qb_px_24"
        android:text="▶  播放"
        android:textColor="@color/text_primary"
        android:textSize="@dimen/mg_sp_22"
        android:textStyle="bold"
        android:gravity="center"
        android:background="@drawable/bg_detail_play_btn"
        android:clickable="true"
        android:focusable="true"
        android:nextFocusRight="@id/btnBack"
        android:nextFocusLeft="@id/btnPlay"
        android:nextFocusUp="@id/btnPlay"
        app:layout_constraintStart_toEndOf="@id/ivPoster"
        app:layout_constraintTop_toBottomOf="@id/tvIntro" />

    <!-- 返回按钮 -->
    <ImageView
        android:id="@+id/btnBack"
        android:layout_width="@dimen/qb_px_56"
        android:layout_height="@dimen/qb_px_56"
        android:layout_marginStart="@dimen/qb_px_16"
        android:src="@drawable/ic_back"
        android:scaleType="center"
        android:contentDescription="@string/back"
        android:background="@drawable/bg_detail_back_btn"
        android:clickable="true"
        android:focusable="true"
        android:nextFocusLeft="@id/btnPlay"
        android:nextFocusRight="@id/btnBack"
        android:nextFocusUp="@id/btnBack"
        app:layout_constraintStart_toEndOf="@id/btnPlay"
        app:layout_constraintTop_toTopOf="@id/btnPlay"
        app:layout_constraintBottom_toBottomOf="@id/btnPlay" />

</androidx.constraintlayout.widget.ConstraintLayout>