/**
 * 频道页与详情壳：汉字/成语/词语/歇后语/接龙/搜索/每日。
 * 除首页外的 PHP 页引入。
 */

.channel-head {
    padding: 28px 0 8px;
    text-align: center;
}

/* 标题与「共xxxx个汉字」同一行，整体居中 */
.channel-title {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: center;
    gap: 10px 14px;
    margin: 0 0 12px;
}

.channel-head h1 {
    font-family: var(--font-kai);
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 700;
    margin: 0 0 12px;
}

.channel-title h1 {
    margin: 0;
}

.channel-count {
    margin: 0;
    font-size: 15px;
    color: var(--muted);
    white-space: nowrap;
}

.channel-head .lead {
    margin-left: auto;
    margin-right: auto;
}

/* 全站统一：频道导读 / 作者简介等介绍块（与 .wrap 同宽，不截断）
 * 下边距 20px：与下方作品卡/列表拉开，避免介绍框贴住卡片（如 /guji/author/） */
.site-intro {
    width: 100%;
    box-sizing: border-box;
    margin: 16px 0 20px;
    padding: 18px 20px;
    text-align: left;
    background: var(--paper-2);
    border: 1px solid var(--line);
    color: var(--ink);
    font-size: 0.98rem;
    line-height: 1.85;
}

.site-intro p {
    margin: 0 0 12px;
    white-space: pre-wrap;
    word-break: break-word;
}

.site-intro p:last-child {
    margin-bottom: 0;
}

.channel-head .site-intro,
.gsc-detail > .site-intro {
    margin-top: 16px;
    margin-bottom: 20px;
}

.channel-search {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin: 16px auto 8px;
    width: min(100%, 640px);
}

.channel-search input,
.channel-search .suggest-wrap {
    flex: 1 1 180px;
    min-width: 0;
}

.channel-search input {
    width: 100%;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid var(--line);
    background: var(--paper-2);
    color: var(--ink);
    font: inherit;
}

.channel-search .btn {
    flex: none;
    white-space: nowrap;
}

.filter-row {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 8px 0 16px;
}

.filter-chip {
    flex: none;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--line);
    background: var(--paper-2);
    color: var(--ink);
    font: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.filter-chip.is-on {
    border-color: var(--azurite);
    color: var(--azurite);
}

/* 叠字 / 多音字页：分类标题与数量、空状态（两页共用） */
.diezi-sections {
    padding-bottom: 24px;
}

.diezi-section-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px 12px;
    margin: 28px 0 12px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.diezi-sections > .diezi-section:first-child .diezi-section-head {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

.diezi-section-head h2 {
    margin: 0;
    font-family: var(--font-kai);
    font-size: clamp(1.2rem, 3vw, 1.45rem);
    font-weight: 700;
}

.diezi-section-head h2::before {
    content: '# ';
    color: var(--muted);
    font-weight: 500;
}

.diezi-section-count {
    margin: 0;
    font-size: 15px;
    color: var(--muted);
    white-space: nowrap;
}

.diezi-empty {
    margin: 0;
    color: var(--muted);
}

.channel-foot {
    padding: 8px 0;
    text-align: center;
}

.channel-foot .lead {
    margin: 0;
}

.diezi-filter {
    margin-bottom: 4px;
}

/* 多音字页：拼音首字母跳转（A–Z，可折行；触控 ≥44px） */
.letter-jump {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 0 12px;
}

.letter-jump a {
    min-width: 44px;
    min-height: 44px;
    padding: 0 8px;
    border: 1px solid var(--line);
    background: var(--paper-2);
    color: var(--ink);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.letter-jump a:hover {
    border-color: var(--azurite);
    color: var(--azurite);
}

/* 多音字页：拼音首字母分组小标题，给粘性顶栏留出锚点空隙 */
.hz-letter-head {
    margin: 18px 0 10px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--muted);
    scroll-margin-top: calc(var(--header-h) + 12px);
}

.diezi-section > .hz-letter-head:first-of-type {
    margin-top: 4px;
}

.diezi-section .entry-wall + .hz-letter-head {
    margin-top: 22px;
}

/* 多音字格子：两/三音一行；四音及以上每行两个读音 */
.hanzi-tile--poly .hanzi-tile__py {
    display: block;
    width: 100%;
    max-width: 100%;
    text-align: center;
    font-size: clamp(11px, 2.6vw, 13px);
    line-height: 1.35;
    color: var(--muted);
}

.entry-wall {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.hanzi-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 16px 8px;
    text-decoration: none;
    color: inherit;
}

.hanzi-tile .mige__char {
    font-size: 2rem;
}

/* 叠字待入库：不可点详情，略降透明度便于区分 */
.hanzi-tile--pending {
    opacity: 0.72;
    cursor: default;
}

.hanzi-tile span {
    font-size: 13px;
    color: var(--muted);
}

/* 与词语/成语卡片一样：悬停时边框改成石青色 */
.hanzi-tile:hover {
    border-color: var(--azurite);
}

.list-cards {
    display: grid;
    gap: 12px;
}

.chengyu-card .word,
.ciyu-card .word,
.xiehouyu-card .word {
    font-family: var(--font-kai);
    font-size: 1.4rem;
    margin: 0 0 4px;
    color: var(--ink);
}

.xiehouyu-card .word {
    font-size: 1.15rem;
}

.chengyu-card p,
.ciyu-card p,
.xiehouyu-card p {
    margin: 0;
    color: var(--muted);
}

/* 详情：大字头 + 属性 */
.entry {
    padding-top: 24px;
}

.entry-head {
    display: grid;
    gap: 20px;
    margin-bottom: 28px;
}

.entry-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin: 0 0 16px;
    color: var(--muted);
    font-size: 15px;
}

.entry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.entry-body h2 {
    margin: 28px 0 8px;
    font-size: 1rem;
    color: var(--muted);
    font-weight: 500;
}

.entry-body p {
    margin: 0 0 12px;
}

.entry-body .para {
    white-space: pre-wrap;
    word-break: break-word;
}

.more-box {
    margin: 20px 0;
    padding: 12px 16px;
    background: var(--paper-2);
    border: 1px solid var(--line);
}

.more-box summary {
    cursor: pointer;
    min-height: 44px;
    display: flex;
    align-items: center;
}

/* 汉字详情「更多」：五笔 / 四角 / 仓颉 / 造字法，与上方属性条同一套对齐 */
.hz-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0 12px;
    padding: 0;
    list-style: none;
}

.hz-tech li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--line);
    background: var(--paper);
    line-height: 1;
}

.hz-tech span {
    color: var(--muted);
    font-size: 15px;
    line-height: 1;
    flex-shrink: 0;
}

.hz-tech .hz-facts__val {
    color: var(--ink);
    font-size: 15px;
    line-height: 1;
}

.more-box .para {
    margin: 0;
}

.example-word {
    color: var(--cinnabar);
    font-weight: 500;
}

.related {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.related a {
    min-height: 44px;
    padding: 8px 12px;
    background: var(--paper-2);
    border: 1px solid var(--line);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.related a:hover {
    border-color: var(--azurite);
}

/* 汉字 / 词语 / 成语详情：头卡 + 释义块 + 底部再看几条 */
.hz-detail,
.ci-detail,
.cy-detail {
    padding: 28px 0 0;
}

.hz-hero,
.ci-hero,
.cy-hero {
    margin-bottom: 16px;
    padding: 24px 20px;
    background: var(--paper-2);
    border: 1px solid var(--line);
}

.hz-hero {
    display: grid;
    gap: 20px;
    justify-items: center;
    text-align: center;
}

.hz-hero .mige {
    width: min(52vw, 200px);
}

/* ---------- 汉字详情：Hanzi Writer 笔顺 / 描写（对齐官方案例） ---------- */
.hz-writer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 220px;
}

.hz-writer__board {
    /* 触摸描写时避免整页跟着拖动 */
    touch-action: none;
    overflow: hidden;
    -webkit-user-select: none;
    user-select: none;
}

.hz-writer__board svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* 汉字详情：描红 + 练习并排 */
.hz-writer__tools {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.hz-writer__tools .btn {
    flex: 1 1 0;
    min-width: 0;
    min-height: 44px;
}

.hz-writer__hint {
    margin: 0;
    font-size: 13px;
    line-height: 1.5;
    color: var(--muted);
    text-align: center;
}

/* 控件与提示包一层，无笔顺数据时整块隐藏 */
.hz-writer__panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.hz-writer__panel[hidden] {
    display: none;
}

/* 无笔顺数据：只留米字格静态字，确保居中 */
.hz-writer--nodata .hz-writer__board {
    touch-action: auto;
}

.hz-writer--nodata .hz-writer__board svg {
    display: none;
}

.hz-hero h1,
.ci-hero h1,
.cy-hero h1 {
    font-family: var(--font-kai);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 12px;
}

.hz-hero h1 {
    font-size: clamp(2rem, 5vw, 2.6rem);
}

/* 简体 / 繁体并排 */
.hz-pair {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 36px;
    margin-bottom: 12px;
}

.hz-form {
    text-align: center;
    min-width: 4.5em;
}

.hz-form h1,
.hz-fan {
    font-family: var(--font-kai);
    font-size: clamp(2rem, 5vw, 2.6rem);
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
}

.hz-form .eyebrow {
    margin-bottom: 4px;
}

.ci-hero,
.cy-hero {
    text-align: center;
}

.ci-hero h1,
.cy-hero h1 {
    font-size: clamp(1.7rem, 4.2vw, 2.4rem);
}

.hz-facts {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin: 0 0 16px;
    padding: 0;
    list-style: none;
}

.hz-facts li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--line);
    background: var(--paper);
    line-height: 1;
}

/* 标签与内容同一字号行高，框内排成一条水平线 */
.hz-facts span,
.hz-facts .hz-facts__val {
    font-size: 15px;
    line-height: 1;
}

.hz-facts span {
    color: var(--muted);
    flex-shrink: 0;
}

.hz-facts .hz-facts__val {
    color: var(--ink);
}

/* 多音字拼音较长：允许折行，触控高度仍够点 */
.hz-facts .hz-fact-pinyin--multi {
    max-width: 100%;
    min-height: 44px;
    padding-top: 10px;
    padding-bottom: 10px;
    line-height: 1.4;
    word-break: break-word;
}

.hz-facts .hz-fact-pinyin--multi .hz-facts__val {
    line-height: 1.4;
}

/* 笔顺名可能很长：单独占一行，小屏自动折行 */
.hz-facts .hz-fact-order {
    flex: 1 1 100%;
    word-break: break-word;
    padding-top: 12px;
    padding-bottom: 12px;
    line-height: 1.45;
}

.hz-facts .hz-fact-order span,
.hz-facts .hz-fact-order .hz-facts__val {
    line-height: 1.45;
}

.hz-hero .entry-actions,
.ci-hero .entry-actions,
.cy-hero .entry-actions {
    justify-content: center;
}

/* 汉字详情：朗读 + 复制。手机两列，避免四个按钮挤成一行 */
@media (max-width: 767px) {
    .hz-writer {
        max-width: min(72vw, 260px);
    }

    .hz-writer__tools .btn {
        min-height: 40px;
        padding: 0 10px;
        font-size: 14px;
    }

    .hz-copy-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        width: 100%;
    }

    .hz-copy-actions .btn {
        min-width: 0;
        padding: 0 8px;
        font-size: 14px;
        min-height: 44px;
    }

    /* 成语详情：朗读 + 复制 + 接龙，手机两列 */
    .cy-hero .entry-actions,
    .ci-hero .entry-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        width: 100%;
    }

    .cy-hero .entry-actions .btn,
    .ci-hero .entry-actions .btn {
        min-width: 0;
        padding: 0 8px;
        font-size: 14px;
        min-height: 44px;
    }
}

/* 朗读中：主按钮改描边，表示可点停止（汉字 / 词语 / 成语详情） */
.entry-actions .btn.is-speaking {
    background: transparent;
    color: var(--azurite);
    box-shadow: inset 0 0 0 1px var(--azurite);
}

.cy-meta {
    margin: 0 0 16px;
    color: var(--muted);
    letter-spacing: 0.04em;
}

.cy-meta span {
    margin-left: 12px;
}

.ci-chars {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 0 0 16px;
}

.ci-chars a {
    color: inherit;
    text-decoration: none;
}

.ci-chars .mige--sm {
    width: 64px;
}

.ci-chars a:hover .mige {
    border-color: var(--cinnabar);
}

.entry-panel {
    margin-bottom: 12px;
    padding: 20px;
    background: var(--paper-2);
    border: 1px solid var(--line);
}

.entry-panel h2 {
    margin: 0 0 10px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--muted);
}

.entry-panel .para {
    margin: 0 0 10px;
    white-space: pre-wrap;
    word-break: break-word;
}

.entry-panel .para:last-child {
    margin-bottom: 0;
}

.entry-panel .more-box {
    margin: 16px 0 0;
}

.cy-blocks {
    display: grid;
    gap: 12px;
}

.entry-more,
.xh-more {
    margin-top: 28px;
    scroll-margin-top: calc(var(--header-h) + 12px);
}

.more-bar,
.xh-more-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.more-bar h2,
.xh-more-bar h2 {
    margin: 0;
    font-size: 1.1rem;
}

.more-bar .btn,
.xh-more-bar .btn {
    flex: none;
    white-space: nowrap;
}

/* 歇后语猜谜 */
.puzzle {
    max-width: 640px;
    padding: 28px 20px;
    margin-top: 12px;
    text-align: center;
}

.puzzle-riddle {
    font-family: var(--font-kai);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    margin: 12px 0 20px;
}

.puzzle-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

/* 歇后语详情：谜面/谜底卡片居中 */
.xh-detail {
    padding: 28px 0 0;
}

.xh-card {
    max-width: 720px;
    margin: 0 auto 36px;
    padding: 28px 20px 32px;
    background: var(--paper-2);
    border: 1px solid var(--line);
    text-align: center;
}

.xh-card .eyebrow {
    margin-bottom: 16px;
}

.xh-label {
    margin: 0;
    font-size: 13px;
    letter-spacing: 0.12em;
    color: var(--muted);
}

.xh-card h1 {
    font-family: var(--font-kai);
    font-size: clamp(1.6rem, 4.2vw, 2.3rem);
    font-weight: 700;
    line-height: 1.4;
    margin: 8px 0 0;
}

.xh-dash {
    margin: 20px 0 16px;
    color: var(--azurite);
    letter-spacing: 0.35em;
}

.xh-card .riddle-answer {
    min-height: 2.2em;
    margin: 8px 0 24px;
    font-family: var(--font-kai);
    font-size: clamp(1.2rem, 3vw, 1.65rem);
    line-height: 1.5;
}

.xh-card .entry-actions {
    justify-content: center;
}

.xh-missing {
    margin: 20px 0 0;
    color: var(--muted);
}

/* 接龙：同字 / 同音切换，触控 ≥ 44px */
.jielong-mode {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin: 0 0 16px;
}

.jielong-mode a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 88px;
    padding: 0 16px;
    border: 1px solid var(--azurite);
    background: var(--paper-2);
    color: var(--azurite);
    text-decoration: none;
}

.jielong-mode a:hover {
    background: color-mix(in srgb, var(--azurite) 12%, var(--paper-2));
    color: var(--azurite-deep);
}

.jielong-mode a.is-current {
    background: var(--azurite);
    color: #fff;
    border-color: var(--azurite);
}

.jielong-mode a.is-current:hover {
    background: var(--azurite-deep);
    color: #fff;
}

/* 接龙 */
.jielong-board {
    display: grid;
    gap: 16px;
}

.jielong-now {
    position: relative;
    padding: 20px;
    background: var(--paper-2);
    border: 1px solid var(--line);
}

/* 当前 + 右上角换一换 */
.jielong-now-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

/* 与右侧「这一条龙」同级标题，不再用小号 eyebrow */
.jielong-now-bar h2 {
    margin: 0;
    font-size: 1.25rem;
}

.jielong-now-bar .btn {
    flex: none;
    white-space: nowrap;
}

.jielong-now strong {
    font-family: var(--font-kai);
    font-size: 1.8rem;
    font-weight: 700;
}

.jielong-cands {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.jielong-cands a {
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--line);
    background: var(--paper);
    color: inherit;
    font: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.jielong-cands a:hover {
    border-color: var(--azurite);
}

.jielong-msg {
    margin: 8px 0;
    color: var(--cinnabar);
}

.jielong-empty {
    margin: 12px 0 0;
    font-size: 14px;
    color: var(--muted);
}

/* 这一条龙：横排标签，过长自动换行 */
.jielong-chain {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.jielong-chain li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

/* 条与条之间用箭头表示接龙方向 */
.jielong-chain li:not(:last-child)::after {
    content: "→";
    color: var(--muted);
    font-size: 13px;
}

.jielong-chain a {
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid var(--line);
    background: var(--paper);
    color: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

.jielong-chain a:hover {
    border-color: var(--azurite);
    color: var(--azurite);
}

.jielong-form {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.jielong-form input {
    flex: 1;
    min-height: 44px;
    min-width: 0;
    padding: 0 12px;
    border: 1px solid var(--line);
    font: inherit;
}

/* 接龙页底部：最难成语推荐（点卡片用该成语开局） */
.jielong-hard {
    margin: 28px auto 8px;
}

.jielong-hard h2 {
    margin: 0 0 8px;
    font-size: 1.2rem;
}

.jielong-hard .lead {
    margin-bottom: 16px;
}

/* 尾字 + 词库可接条数 */
.jielong-hard-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 12px;
    margin: 4px 0 8px;
    font-size: 13px;
    color: var(--muted);
}

.jielong-hard-tag {
    color: var(--cinnabar);
}

/* 手机双列，避免九张卡单列太长 */
.jielong-hard .list-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.jielong-hard .chengyu-card {
    padding: 14px 12px;
}

.jielong-hard .chengyu-card .word {
    font-size: 1.2rem;
}

.search-group {
    margin: 28px 0;
}

.search-group h2 {
    margin-bottom: 12px;
}

.search-group .word {
    font-family: var(--font-kai);
    font-size: 1.4rem;
    margin: 0 0 4px;
}

@media (min-width: 768px) {
    .entry-wall {
        grid-template-columns: repeat(4, 1fr);
    }

    .list-cards {
        grid-template-columns: 1fr 1fr;
    }

    .entry-head {
        grid-template-columns: 220px 1fr;
        align-items: center;
    }

    .jielong-board {
        grid-template-columns: 1fr 1fr;
    }

    /* Pad：最难成语 3 列 */
    .jielong-hard .list-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .jielong-hard .chengyu-card {
        padding: 20px;
    }

    .jielong-hard .chengyu-card .word {
        font-size: 1.4rem;
    }

    .xh-card {
        padding: 40px 36px 36px;
    }

    .hz-hero {
        grid-template-columns: 220px 1fr;
        justify-items: start;
        text-align: left;
        align-items: start;
        padding: 32px;
        gap: 36px;
    }

    .hz-hero .mige {
        width: 200px;
    }

    .hz-writer {
        max-width: 200px;
        align-items: stretch;
    }

    .hz-writer__panel {
        align-items: stretch;
    }

    .hz-writer__hint {
        text-align: left;
    }

    .hz-facts,
    .hz-hero .entry-actions,
    .hz-pair {
        justify-content: flex-start;
    }

    .ci-hero,
    .cy-hero {
        padding: 36px 32px;
    }
}

@media (min-width: 1025px) {
    .entry-wall {
        grid-template-columns: repeat(8, 1fr);
    }

    .list-cards {
        grid-template-columns: repeat(3, 1fr);
    }

    .channel-head {
        padding-top: 40px;
    }
}