/* ========= COLLECTION.CSS - 集合页面通用样式========= */
/* 适用于阿弥陀佛、观世音菩萨、地藏菩萨等所有合集页 */

:root {
    --primary-color: #5a9c20;
    --primary-dark: #4a7c1a;
    --primary-light: #f0f7e6;
    --bg-color: #ffffff;
    --text-color: #333333;
    --text-light: #666666;
    --text-description: #555555;
    --border-color: #e0e0e0;
    --link-color: #5a9c20;
    --link-hover: #4a7c1a;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, "Microsoft Yahei UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "WenQuanYi Micro Hei", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* 合集主容器 */
.collection-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
}

/* ===== 页面标题区===== */
.page-header-container {
    margin-bottom: 5px;
    padding: 5px 5px;
    background: linear-gradient(135deg, #f0f7e6 0%, #ffffff 100%);
    border-radius: 16px;
    border: 2px solid var(--primary-light);
    box-shadow: 0 4px 16px rgba(90, 156, 32, 0.12);
}

.page-header h1 {
    font-size: 32px;
    color: var(--primary-dark);
    margin-top: 0;
    margin-bottom: 20px;
    line-height: 1.3;
    font-weight: 700;
    text-align: center;
}

.page-description {
    font-size: 18px;
    color: var(--text-color);
    text-align: left;
    max-width: 1000px;
    margin: 0 auto 5px;
    line-height: 1.8;
}

.page-description:last-child {
    margin-bottom: 0;
}

/* ===== 音频列表容器 ===== */
.audio-collection {
    background: white;
    border-radius: 16px;
    padding: 0;  /* 左右内边距归零，让条目边框撑满 */
    margin:0;
    border: 2px solid var(--primary-light);
    box-shadow: 0 4px 16px rgba(90, 156, 32, 0.08);
}

.audio-collection h2 {
    font-size: 26px;
    color: var(--primary-dark);
    margin: 0 10px 10px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-light);
    text-align: center;
    font-weight: 700;
}

/* 音频列表 — 无左右间距，边框占满 */
.audio-list-simple {
    display: flex;
    flex-direction: column;
    gap: 0;  /* 边框重叠处理 */
}

/* ✅ 核心样式：条目占满整行，无左右padding，边框占满 */
.audio-item-simple {
    display: block;
    padding: 0;            /* 彻底取消内边距，边框直接撑满 */
    margin: 0;
    background: white;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    border-left: none;
    border-right: none;
    transition: background 0.2s ease;
    cursor: pointer;
}

/* 相邻边框合并，避免双线 */
.audio-item-simple + .audio-item-simple {
    border-top: none;
}

.audio-item-simple:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    z-index: 1;
    position: relative;
}

/* 链接区域：内边距放在链接内，保证点击区域占满整行 */
.audio-item-simple a {
    display: flex;
    align-items: flex-start;
    text-decoration: none;
    color: inherit;
    width: 100%;
    padding: 14px 5px;    /* 左右内边距20px，边框仍然撑满，点击区域舒适 */
    box-sizing: border-box;
}

/* 编号 — 与标题间距极小 */
.audio-number {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 25px;       /* 留足两位数字+点位置 */
    margin-right: 1px;     /* 从默认15px缩到6px，紧凑不拥挤 */
    line-height: 1.4;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

/* 标题与描述包装 */
.audio-title-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 主标题 */
.audio-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 6px;
    line-height: 1.4;
    word-break: break-word;
}

.audio-title:hover {
    color: var(--link-color);
}

.audio-description {
    font-size: 16px;
    color: var(--text-description);
    line-height: 1.5;
    margin-top: 2px;
    padding-right: 5px;
    word-break: break-word;
}

/* 分类标题 */
.category-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-dark);
    margin: 5px 20px 5px;
    padding-bottom: 8px;
    border-bottom: 3px solid var(--primary-color);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(90, 156, 32, 0.35);
    z-index: 1000;
    border: none;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .collection-container {
        padding: 15px 10px;
    }
    
    .page-header-container {
        padding: 5px 5px;
        margin-bottom: 10px;
    }
    
    .page-header h1 {
        font-size: 28px;
        margin-bottom: 16px;
    }
    
    .page-description {
        font-size: 16px;
        line-height: 1.7;
    }
    
    .audio-collection {
        padding: 5px 0;
    }
    
    .audio-collection h2 {
        font-size: 24px;
        margin: 0 15px 18px;
    }
    
    .audio-item-simple a {
        padding: 12px 3px;
    }
    
    .audio-number {
        font-size: 18px;
        min-width: 20px;
        margin-right: 1px;
    }
    
    .audio-title {
        font-size: 19px;
        margin-bottom: 5px;
    }
    
    .audio-description {
        font-size: 15px;
    }
    
    .category-title {
        font-size: 24px;
        margin: 5px 15px 3px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 24px;
    }
    
    .page-description {
        font-size: 15px;
    }
    
    .audio-item-simple a {
        padding: 10px 3px;
    }
    
    .audio-number {
        font-size: 16px;
        min-width: 20px;
        margin-right: 1px;
    }
    
    .audio-title {
        font-size: 17px;
        margin-bottom: 4px;
    }
    
    .audio-description {
        font-size: 14px;
    }
    .category-title {
        font-size: 24px;
        margin: 3px 10px 1px;
    }
    
}

@media (max-width: 360px) {
    .audio-item-simple a {
        padding: 10px 3px;
    }
    
    .audio-number {
        min-width: 16px;
        margin-right: 1px;
        font-size: 15px;
    }
    
    .audio-title {
        font-size: 16px;
    }
    
    .audio-description {
        font-size: 13px;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .page-header-container {
        border: 3px solid #000;
        background: white;
    }
    .page-header h1 {
        color: #000;
    }
    .audio-item-simple {
        border-top: 2px solid #000;
        border-bottom: 2px solid #000;
    }
    .audio-item-simple:hover {
        background: #f0f7e6;
        border-color: #000;
    }
}

/* 减少动画 */
@media (prefers-reduced-motion: reduce) {
    .audio-item-simple,
    .back-to-top {
        transition: none !important;
    }
    .back-to-top:hover {
        transform: none;
    }
}

/* ========= 新增：热门推荐内链（SEO 强化）适老化多列布局 ========= */
.hot-recommend {
    margin: 20px 0 10px;
    padding: 10px 2px;
    background: #fefaf0;
    border-radius: 20px;
    border: 1px solid #e7dbb8;
}

.hot-recommend h2 {
    font-size: 26px;
    font-weight: 700;
    color: #5a9c20;
    margin: 0 0 12px 0;
    padding-left: 8px;
}

/* 核心：flex 多行自动排列，每个标签宽度自动 */
.hot-recommend ul {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 16px;        /* 行间距12px，列间距16px */
    list-style: none;
    margin: 0;
    padding: 0;
}

.hot-recommend li {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* 链接变成大块点击区域，字体加大，背景柔和 */
.hot-recommend a {
    display: inline-block;
    padding: 8px 2px;
    background-color: #fff;
    border: 1px solid #d4e2c4;
    border-radius: 40px;
    font-size: 18px;
    font-weight: 500;
    color: #2a4a0f;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;       /* 文字不换行，保持标签紧凑 */
    line-height: 1.4;
}

.hot-recommend a:hover {
    background-color: #5a9c20;
    color: white;
    border-color: #5a9c20;
    transform: translateY(-2px);
}

/* 移动端：稍微缩小间距和字体，但仍保持可读性 */
@media (max-width: 768px) {
    .hot-recommend {
        margin: 15px 0 8px;
        padding: 8px 2px;
    }
    .hot-recommend h2 {
        font-size: 22px;
    }
    .hot-recommend a {
        font-size: 16px;
        padding: 6px 0px;
        white-space: nowrap;
    }
    .hot-recommend ul {
        gap: 8px 12px;
    }
}

/* 极小屏（低于480px）允许个别长标签换行，防止溢出 */
@media (max-width: 480px) {
    .hot-recommend a {
        font-size: 15px;
        padding: 6px 0px;
        white-space: normal;
        word-break: keep-all;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .hot-recommend a {
        border: 2px solid black;
        background: white;
        color: black;
    }
    .hot-recommend a:hover {
        background: black;
        color: white;
    }
}

/* 减少动画模式 */
@media (prefers-reduced-motion: reduce) {
    .hot-recommend a {
        transition: none;
    }
    .hot-recommend a:hover {
        transform: none;
    }
}