/* ==========================================================================
   网易云音乐 官方资讯与下载中心 — 全站样式
   纯手写 CSS，无框架、无外部依赖
   设计规范依据：需求文档 第四章（色彩 / 字体 / 圆角 / 间距）
   移动端优先：默认移动样式，@media (min-width:768px) 与 (min-width:1024px) 仅做布局升级
   ========================================================================== */

/* ------------------------------ 1. 变量与重置 ------------------------------ */
:root {
    /* 色彩系统 */
    --c-primary: #052953;
    /* 主色：按钮主色、标题强调、Footer 背景 */
    --c-primary-light: #007cc2;
    /* 主色亮版：链接悬停、次级按钮 */
    --c-accent: #f60;
    /* 辅色/强调色：CTA、星级、公告条 */
    --c-text: #1a1a1a;
    /* 文字主色 */
    --c-text-strong: #000;
    --c-text-sub: #666;
    /* 文字辅色 */
    --c-text-muted: #999;
    --c-bg: #fff;
    /* 页面背景 */
    --c-bg-alt: #f5f7fa;
    /* 区块交替背景 / 卡片底色 */
    --c-border: #e6e9ef;

    /* 圆角 */
    --r-card: 12px;
    --r-btn: 8px;
    --r-img: 8px;
    --r-pill: 999px;

    /* 间距系统 */
    --sp-section: 48px;
    /* 区块垂直内边距（移动端） */
    --sp-block: 40px;
    /* 区块间外边距（移动端） */
    --sp-card: 20px;
    /* 卡片内边距（移动端） */
    --sp-gap: 16px;
    /* 卡片间距（移动端） */
    --container: 1200px;
}

@media (min-width: 1024px) {
    :root {
        --sp-section: 88px;
        --sp-block: 72px;
        --sp-card: 30px;
        --sp-gap: 22px;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--c-bg);
    color: var(--c-text);
    font-family: system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.7;
}

@media (min-width: 1024px) {
    body {
        font-size: 16px;
    }
}

h1,
h2,
h3 {
    margin: 0 0 12px;
    color: var(--c-text-strong);
    line-height: 1.28;
}

h1 {
    font-size: 28px;
    font-weight: 700;
}

h2 {
    font-size: 22px;
    font-weight: 600;
}

h3 {
    font-size: 18px;
    font-weight: 600;
}

@media (min-width: 1024px) {
    h1 {
        font-size: 40px;
    }

    h2 {
        font-size: 28px;
    }

    h3 {
        font-size: 20px;
    }
}

p {
    margin: 0 0 12px;
}

a {
    color: var(--c-primary);
    text-decoration: none;
}

a:hover {
    color: var(--c-primary-light);
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--r-img);
}

:focus-visible {
    outline: 2px solid var(--c-primary-light);
    outline-offset: 2px;
}

/* ------------------------------ 2. 通用布局 ------------------------------ */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 16px;
}

.section {
    padding: var(--sp-section) 0;
}

.section--alt {
    background: var(--c-bg-alt);
}

.section-head {
    max-width: 780px;
    margin: 0 auto 28px;
    text-align: center;
}

.section-head .subtitle,
.subtitle {
    margin: 0;
    color: var(--c-text-sub);
    font-size: 14px;
}

@media (min-width: 1024px) {
    .section-head {
        margin-bottom: 40px;
    }

    .subtitle {
        font-size: 16px;
    }
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
}

.skip-link:focus {
    left: 8px;
    top: 8px;
    z-index: 99;
    padding: 8px 14px;
    background: #fff;
    border-radius: var(--r-btn);
}

/* ------------------------------ 3. 按钮 ------------------------------ */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border: 1px solid transparent;
    border-radius: var(--r-btn);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
    cursor: pointer;
    transition: background-color .2s, color .2s, border-color .2s;
}

@media (min-width: 1024px) {
    .btn {
        padding: 12px 28px;
    }
}

.btn--primary {
    background: var(--c-accent);
    color: #fff;
}

.btn--primary:hover {
    background: #e65c00;
    color: #fff;
}

.btn--secondary {
    background: var(--c-primary-light);
    color: #fff;
}

.btn--secondary:hover {
    background: var(--c-primary);
    color: #fff;
}

.btn--ghost {
    background: transparent;
    border-color: var(--c-primary);
    color: var(--c-primary);
}

.btn--ghost:hover {
    background: var(--c-primary);
    color: #fff;
}

.btn--on-dark {
    background: #fff;
    color: var(--c-primary);
}

.btn--on-dark:hover {
    background: #e8eef5;
    color: var(--c-primary);
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* 文字型"了解更多 →"链接 */
.link-more {
    display: inline-block;
    margin-top: 8px;
    color: var(--c-primary);
    font-size: 14px;
    font-weight: 700;
}

.link-more:hover {
    color: var(--c-primary-light);
}

/* 仅供屏幕阅读器读取、视觉上隐藏的文本（如表格 caption） */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* ------------------------------ 4. 顶部导航栏（Sticky Header） ------------------------------ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    /* 导航高度统一由变量控制：移动端 56px，桌面端 64px */
    --nav-h: 56px;
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid var(--c-border);
    transition: box-shadow .2s, background-color .2s;
}

.site-header.is-scrolled {
    background: #fff;
    box-shadow: 0 2px 12px rgba(5, 41, 83, .12);
}

/* 移动端菜单展开时的页面遮罩：固定定位，位于菜单面板之下的层级 */
.site-header::after {
    content: "";
    position: fixed;
    top: var(--nav-h);
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    display: none;
    background: rgba(5, 41, 83, .45);
}

.site-header.is-menu-open::after {
    display: block;
}

.nav-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    max-width: 1200px;
    min-height: var(--nav-h);
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 1024px) {
    .site-header {
        --nav-h: 64px;
    }
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--c-text-strong);
    font-size: 16px;
    font-weight: 700;
    transition: color .2s;
}

.brand:hover {
    color: var(--c-primary-light);
}

.brand img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}

/* 汉堡按钮：移动端显示 */
.nav-toggle {
    position: relative;
    z-index: 3;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 36px;
    padding: 0 8px;
    background: transparent;
    border: 1px solid var(--c-border);
    border-radius: var(--r-btn);
    cursor: pointer;
    transition: background-color .2s, border-color .2s;
}

.nav-toggle:hover {
    background: var(--c-bg-alt);
    border-color: var(--c-primary-light);
}

.nav-toggle span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--c-text-strong);
    transition: transform .22s, opacity .18s;
}

/* 展开态：汉堡图标变叉号 */
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
    width: 100%;
    /* 面板层级高于头部遮罩（z-index:1），低于汉堡按钮（z-index:3） */
    z-index: 2;
}

.nav-menu ul {
    display: block;
}

.nav-menu li {
    display: block;
    margin: 0;
    border-top: 1px solid var(--c-border);
}

.nav-menu a {
    display: block;
    padding: 12px 4px;
    color: var(--c-text-strong);
    font-size: 15px;
    font-weight: 700;
}

.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
    color: var(--c-primary);
}

/* 无 JS 降级：菜单可见可点击；启用 JS 后由 .js 类接管折叠 */
html.js .nav-menu {
    display: none;
}

html.js .nav-menu.is-open {
    display: block;
}

html.js .nav-menu a {
    padding: 12px 0;
}

/* 移动端展开态：悬浮面板下拉，不挤压页面布局，超高时可内部滚动 */
@media (max-width: 1023px) {
    html.js .nav-menu.is-open {
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        width: auto;
        max-height: calc(100vh - var(--nav-h) - 8px);
        overflow-y: auto;
        padding: 4px 16px 14px;
        background: #fff;
        border-top: 1px solid var(--c-border);
        box-shadow: 0 18px 34px rgba(5, 41, 83, .18);
        animation: nav-drop .22s ease-out;
    }
}

@keyframes nav-drop {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

/* 菜单展开时锁定页面滚动 */
body.is-nav-open {
    overflow: hidden;
}

.nav-cta {
    display: none;
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }

    html.js .nav-menu,
    .nav-menu {
        display: block;
        width: auto;
        flex: 1 1 auto;
    }

    .nav-menu ul {
        text-align: center;
    }

    /* 源码参考：列表项 inline-block，间距 margin: 0 12px */
    .nav-menu li {
        display: inline-block;
        margin: 0 12px;
        border-top: 0;
    }

    .nav-menu a {
        position: relative;
        padding: 8px 2px;
        font-size: 15.5px;
        font-weight: 700;
    }

    /* 桌面端：悬停与当前页用下划线指示 */
    .nav-menu a::after {
        content: "";
        position: absolute;
        right: 0;
        bottom: 0;
        left: 0;
        height: 2px;
        border-radius: 2px;
        background: var(--c-primary-light);
        transform: scaleX(0);
        transition: transform .2s;
    }

    .nav-menu a:hover::after,
    .nav-menu a[aria-current="page"]::after {
        transform: scaleX(1);
    }

    .nav-cta {
        display: inline-block;
        flex: 0 0 auto;
        padding: 8px 18px;
    }
}

/* ------------------------------ 5. Hero 首屏区 ------------------------------ */
.hero {
    padding: var(--sp-section) 0;
    background: linear-gradient(160deg, #04203f 0%, var(--c-primary) 55%, #0a3a72 100%);
    color: #fff;
}

.hero h1 {
    color: #fff;
}

.hero .hero-sub {
    color: rgba(255, 255, 255, .82);
    font-size: 15px;
}

.hero-grid {
    display: block;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 26px;
    margin: 22px 0;
    padding: 0;
}

.hero-stats li {
    min-width: 96px;
}

.hero-stats strong {
    display: block;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
}

.hero-stats span {
    color: rgba(255, 255, 255, .72);
    font-size: 13px;
}

@media (min-width: 1024px) {
    .hero-grid {
        display: grid;
        grid-template-columns: 57% 43%;
        gap: 40px;
        align-items: center;
    }

    .hero-stats li {
        min-width: 110px;
    }

    .hero-stats strong {
        font-size: 24px;
    }

    .hero-sub {
        font-size: 16px;
    }
}

/* --- 播放器模拟 UI（纯 CSS 构建） --- */
.player {
    padding: var(--sp-card);
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: var(--r-card);
    backdrop-filter: blur(6px);
}

.player-top {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}

.player-cover {
    flex: 0 0 64px;
    width: 64px;
    height: 64px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--c-primary-light), #7cc4ff);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .3);
}

.player-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
}

.player-artist {
    color: rgba(255, 255, 255, .7);
    font-size: 13px;
}

.player-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.bar {
    position: relative;
    flex: 1 1 auto;
    height: 4px;
    border-radius: var(--r-pill);
    background: rgba(255, 255, 255, .25);
}

.bar-fill {
    display: block;
    height: 100%;
    width: 42%;
    border-radius: var(--r-pill);
    background: var(--c-accent);
}

.bar-thumb {
    position: absolute;
    top: 50%;
    left: 42%;
    width: 10px;
    height: 10px;
    margin: -5px 0 0 -5px;
    border-radius: 50%;
    background: #fff;
}

.player-time {
    color: rgba(255, 255, 255, .75);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 14px;
}

.p-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
}

.p-btn:hover {
    background: rgba(255, 255, 255, .24);
}

.p-btn--play {
    width: 44px;
    height: 44px;
    background: var(--c-accent);
    border-color: transparent;
}

.p-btn--play:hover {
    background: #e65c00;
}

.p-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.p-volume {
    width: 72px;
}

.playlist {
    margin-top: 18px;
    display: grid;
    gap: 10px;
}

.playlist li {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, .06);
    border-radius: 8px;
    color: rgba(255, 255, 255, .9);
    font-size: 13px;
    line-height: 1.5;
}

.playlist .idx {
    color: rgba(255, 255, 255, .5);
    font-variant-numeric: tabular-nums;
}

.playlist .dur {
    margin-left: auto;
    color: rgba(255, 255, 255, .55);
}

/* ------------------------------ 6. 公告栏 ------------------------------ */
.notice {
    background: rgba(5, 41, 83, .1);
    border-top: 1px solid rgba(5, 41, 83, .12);
    border-bottom: 1px solid rgba(5, 41, 83, .12);
    border-left: 4px solid var(--c-accent);
}

.notice-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 14px;
    padding: 14px 0;
}

.notice-icon {
    flex: 0 0 auto;
    color: var(--c-accent);
    font-size: 16px;
}

.notice-text {
    flex: 1 1 220px;
    margin: 0;
    color: var(--c-primary);
    font-size: 14px;
    font-weight: 700;
}

.notice a {
    flex: 0 0 auto;
    color: var(--c-primary-light);
    font-size: 14px;
    font-weight: 700;
}

/* ------------------------------ 7. 卡片网格（功能 / 资讯 / 评价） ------------------------------ */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-gap);
}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    display: flex;
    flex-direction: column;
    padding: var(--sp-card);
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border);
    border-radius: var(--r-card);
}

.card h3 {
    margin-bottom: 8px;
}

.card p {
    margin: 0 0 10px;
    color: var(--c-text-sub);
    font-size: 14px;
}

.card .link-more {
    margin-top: auto;
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-bottom: 14px;
    background: rgba(5, 41, 83, .08);
    border-radius: 10px;
    font-size: 22px;
}

/* 资讯缩略图 16:9 占位（aspect-ratio 避免 CLS） */
.thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    margin-bottom: 14px;
    border-radius: var(--r-img);
    background: linear-gradient(135deg, #d8e4f1, #eef3f8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-text-muted);
    font-size: 13px;
}

.news-card {
    background: #fff;
}

/* ------------------------------ 8. 对比表 ------------------------------ */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--r-card);
}

.compare-table {
    width: 100%;
    min-width: 640px;
    border-collapse: collapse;
    font-size: 14px;
}

.compare-table th,
.compare-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--c-border);
    text-align: left;
    white-space: nowrap;
}

.compare-table thead th {
    background: var(--c-primary);
    color: #fff;
    font-weight: 700;
}

.compare-table th[scope="row"],
.compare-table tbody th {
    background: var(--c-bg-alt);
    color: var(--c-text-strong);
    font-weight: 700;
}

.compare-table tbody tr:nth-child(even) td {
    background: #fafbfd;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
    border-bottom: 0;
}

.table-hint {
    margin: 10px 0 0;
    color: var(--c-text-muted);
    font-size: 13px;
}

@media (min-width: 1024px) {
    .table-hint {
        display: none;
    }
}

/* ------------------------------ 9. 用户评价 ------------------------------ */
.review-card {
    background: #fff;
    box-shadow: 0 2px 10px rgba(5, 41, 83, .07);
}

.stars {
    margin-bottom: 8px;
    color: var(--c-accent);
    font-size: 15px;
    letter-spacing: 2px;
}

.review-body {
    color: var(--c-text);
    font-size: 14px;
}

.review-user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--c-border);
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary-light), #9ad3ff);
    flex: 0 0 36px;
}

.review-user strong {
    display: block;
    font-size: 14px;
}

.review-user span {
    color: var(--c-text-muted);
    font-size: 13px;
}

/* ------------------------------ 10. FAQ 卡片网格 ------------------------------ */
.faq {
    display: grid;
    gap: var(--sp-gap);
    /* 展开某张卡片时不撑高同行其它卡片 */
    align-items: start;
}

@media (min-width: 768px) {
    .faq {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .faq {
        grid-template-columns: repeat(3, 1fr);
    }
}

.faq details {
    padding: 0 var(--sp-card);
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border);
    border-radius: var(--r-card);
}

.faq summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 0;
    color: var(--c-text-strong);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

.faq summary h3 {
    margin: 0;
    font-size: inherit;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary::after {
    content: "+";
    flex: 0 0 auto;
    color: var(--c-primary-light);
    font-size: 20px;
    font-weight: 700;
    line-height: 1;
}

.faq details[open] summary::after {
    content: "–";
}

.faq .faq-a {
    padding: 0 0 18px;
    margin: 0;
    color: var(--c-text-sub);
    font-size: 14px;
}

/* ------------------------------ 11. 底部 CTA Banner ------------------------------ */
.cta-banner {
    padding: var(--sp-section) 0;
    background: var(--c-primary);
    color: #fff;
}

.cta-banner h2 {
    color: #fff;
    margin-bottom: 8px;
}

.cta-banner p {
    color: rgba(255, 255, 255, .82);
    font-size: 14px;
    margin-bottom: 18px;
}

.cta-inner {
    text-align: center;
}

.cta-inner .btn-row {
    justify-content: center;
}

@media (min-width: 1024px) {
    .cta-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        text-align: left;
    }

    .cta-inner .cta-copy {
        max-width: 620px;
    }

    .cta-inner .btn-row {
        flex: 0 0 auto;
        justify-content: flex-end;
    }
}

/* ------------------------------ 12. Footer ------------------------------ */
.site-footer {
    padding: 40px 0 20px;
    background: #041f3d;
    color: #b9c6d6;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 20px;
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1.6fr 1fr 1fr 1fr;
        gap: 32px;
    }
}

.site-footer h3 {
    margin: 0 0 12px;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
}

.site-footer a {
    color: #b9c6d6;
}

.site-footer a:hover {
    color: #fff;
}

.site-footer li {
    margin-bottom: 8px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.footer-brand img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}

.footer-slogan {
    color: var(--c-text-muted);
    font-size: 13px;
}

.social-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.social-list a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 32px;
    padding: 0 10px;
    background: rgba(255, 255, 255, .08);
    border-radius: var(--r-pill);
    font-size: 12px;
}

.footer-bottom {
    margin-top: 28px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    color: var(--c-text-muted);
    font-size: 13px;
    text-align: center;
}

/* ------------------------------ 13. 子页面（内页头部 / 面包屑 / 正文） ------------------------------ */
.page-hero {
    padding: calc(var(--sp-section) * .6) 0;
    background: var(--c-bg-alt);
    border-bottom: 1px solid var(--c-border);
}

.breadcrumb {
    margin: 0 0 10px;
    color: var(--c-text-muted);
    font-size: 13px;
}

.breadcrumb a {
    color: var(--c-text-sub);
}

.breadcrumb a:hover {
    color: var(--c-primary-light);
}

.article {
    max-width: 840px;
    margin: 0 auto;
}

.article h2 {
    margin-top: 32px;
}

.article h3 {
    margin-top: 24px;
}

.article ul {
    margin: 0 0 16px;
    padding-left: 20px;
    list-style: disc;
    color: var(--c-text-sub);
}

.article li {
    margin-bottom: 6px;
}

.article-meta {
    margin: 0 0 20px;
    color: var(--c-text-muted);
    font-size: 13px;
}

.article figure {
    margin: 20px 0;
}

.article figcaption {
    margin-top: 8px;
    color: var(--c-text-muted);
    font-size: 13px;
    text-align: center;
}

.spec-list {
    display: grid;
    gap: 12px;
    margin: 0 0 24px;
}

@media (min-width: 768px) {
    .spec-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

.spec-list li {
    padding: 16px;
    background: var(--c-bg-alt);
    border-radius: var(--r-card);
    font-size: 14px;
}

.spec-list strong {
    display: block;
    color: var(--c-primary);
    font-size: 18px;
}

/* ------------------------------ 14. 配图与头像（本地 SVG 资源） ------------------------------ */
/* 卡片配图：固定 16:9，避免加载期抖动 */
.card-image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    margin-bottom: 14px;
    border-radius: var(--r-img);
    background: linear-gradient(135deg, #d8e4f1, #eef3f8);
}

/* 文章内配图 */
.figure-img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border-radius: var(--r-img);
}

/* 功能卡内的要点列表 */
.card .feature-list {
    margin: 0 0 12px;
    color: var(--c-text-sub);
    font-size: 13.5px;
}

.card .feature-list li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 5px;
}

.card .feature-list li::before {
    content: "";
    position: absolute;
    top: 9px;
    left: 2px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-primary-light);
}

/* 头像：图片铺满圆形裁切容器 */
.avatar {
    overflow: hidden;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-border);
}

.avatar img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

/* 数据示意说明文字 */
.stat-note {
    margin: 0;
    color: rgba(255, 255, 255, .6);
    font-size: 12.5px;
}

.table-note {
    margin: 10px 0 0;
    color: var(--c-text-muted);
    font-size: 12.5px;
}

/* 404 */
.error-box {
    padding: var(--sp-section) 0;
    text-align: center;
}

.error-code {
    color: var(--c-primary);
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
}