/*!
 * CoffeeSearch · wikiHow 风格设计系统
 * 主色 #2ea44f（品牌绿）· 白卡浅灰底 · 大圆角数字步骤 · 两栏阅读布局
 * 版本 20261026
 */

:root{
    --wh-green:#2ea44f;
    --wh-green-dark:#237a3c;
    --wh-green-deep:#1c6130;
    --wh-green-soft:#eaf5ed;
    --wh-green-line:#c7e6d1;
    --wh-yellow:#ffd333;
    --wh-text:#333333;
    --wh-title:#1a1a1a;
    --wh-muted:#767676;
    --wh-faint:#9a9a9a;
    --wh-line:#e6e6e6;
    --wh-line-soft:#f0f0f0;
    --wh-bg:#f6f6f6;
    --wh-card:#ffffff;
    --wh-radius:8px;
    --wh-radius-lg:12px;
    --wh-shadow:0 1px 2px rgba(0,0,0,.06);
    --wh-shadow-hover:0 4px 14px rgba(0,0,0,.10);
    --wh-font:"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    --wh-max:1180px;
}

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

html{-webkit-text-size-adjust:100%}
body{
    margin:0;
    font-family:var(--wh-font);
    font-size:15px;
    line-height:1.6;
    color:var(--wh-text);
    background:var(--wh-bg);
    overflow-x:hidden;
}
a{color:var(--wh-green);text-decoration:none}
a:hover{color:var(--wh-green-dark);text-decoration:underline}
img{max-width:100%;height:auto;border:0;vertical-align:middle}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--wh-title);font-weight:700;line-height:1.3}
p{margin:0 0 14px}
table{border-collapse:collapse;width:100%}
input,button,select,textarea{font-family:inherit;font-size:inherit;outline:none}
button{cursor:pointer;border:0;background:none}
::selection{background:#cdebd6}

/* ============ 布局容器 ============ */
.wh-wrap{width:100%;max-width:var(--wh-max);margin:0 auto;padding:0 20px}
/* 全局兜底：任何长串/宽元素都不允许撑出视口 */
html,body{overflow-x:hidden;max-width:100%}
body *{word-break:break-word}
.wh-article-body :is(p,li,h1,h2,h3,h4,td,th,span,a){word-break:break-word;overflow-wrap:anywhere}
.wh-wrap>*{min-width:0}
.wh-row{display:flex;flex-wrap:wrap;margin:0 -12px}
.wh-col-8{width:66.6667%;padding:0 12px}
.wh-col-4{width:33.3333%;padding:0 12px}
.wh-col-12{width:100%;padding:0 12px}
.wh-col-6{width:50%;padding:0 12px}
.wh-col-3{width:25%;padding:0 12px}
.wh-main{padding:26px 0 40px}
.wh-col-4 .wh-side{position:sticky;top:76px}

/* ============ 顶部导航 ============ */
.wh-header{background:#fff;border-bottom:1px solid var(--wh-line);box-shadow:0 1px 3px rgba(0,0,0,.04)}
.wh-header-top{display:flex;align-items:center;gap:22px;height:66px}
.wh-logo{flex:0 0 auto;display:flex;align-items:center;gap:9px}
.wh-logo a{display:flex;align-items:center;gap:9px;text-decoration:none}
.wh-logo-mark{
    width:34px;height:34px;border-radius:50%;background:var(--wh-green);
    display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.wh-logo-mark svg{width:19px;height:19px;fill:#fff}
.wh-logo-text{font-size:23px;font-weight:800;color:var(--wh-title);letter-spacing:-.4px}
.wh-logo-text em{font-style:normal;color:var(--wh-green)}
.wh-logo-text small{display:block;font-size:10px;font-weight:600;color:var(--wh-faint);letter-spacing:1.6px;line-height:1;margin-top:2px}

.wh-head-search{flex:1 1 auto;max-width:620px}
.wh-head-search form{display:flex;align-items:center;background:#f2f3f4;border:1px solid transparent;border-radius:20px;padding:3px 3px 3px 18px;transition:.18s}
.wh-head-search form:focus-within{background:#fff;border-color:var(--wh-green);box-shadow:0 0 0 3px rgba(46,164,79,.12)}
.wh-head-search input{flex:1;border:0;background:none;height:36px;font-size:15px;color:var(--wh-text)}
.wh-head-search input::placeholder{color:var(--wh-faint)}
.wh-head-search button{
    flex:0 0 auto;width:38px;height:38px;border-radius:50%;background:var(--wh-green);
    display:inline-flex;align-items:center;justify-content:center;transition:.18s;
}
.wh-head-search button:hover{background:var(--wh-green-dark)}
.wh-head-search button svg{width:17px;height:17px;fill:#fff}

.wh-head-links{margin-left:auto;display:flex;align-items:center;gap:18px;flex:0 0 auto}
.wh-head-links a{color:var(--wh-text);font-size:14px;font-weight:600}
.wh-head-links a:hover{color:var(--wh-green);text-decoration:none}
.wh-head-links .wh-hl-cta{
    background:var(--wh-green-soft);color:var(--wh-green-dark);
    padding:7px 15px;border-radius:16px;border:1px solid var(--wh-green-line);
}
.wh-head-links .wh-hl-cta:hover{background:var(--wh-green);color:#fff;border-color:var(--wh-green)}

/* 分类导航 */
.wh-nav{background:#fff;border-top:1px solid var(--wh-line-soft)}
.wh-nav ul{display:flex;flex-wrap:wrap;align-items:center;gap:2px}
.wh-nav li a{
    display:block;padding:11px 14px;font-size:14px;font-weight:600;color:var(--wh-text);
    border-bottom:2px solid transparent;white-space:nowrap;
}
.wh-nav li a:hover{color:var(--wh-green);text-decoration:none;border-bottom-color:var(--wh-green-line)}
.wh-nav li.on a{color:var(--wh-green);border-bottom-color:var(--wh-green)}

/* ============ 面包屑 ============ */
.wh-crumb{font-size:13px;color:var(--wh-muted);padding:16px 0 0}
.wh-crumb a{color:var(--wh-muted)}
.wh-crumb a:hover{color:var(--wh-green)}
.wh-crumb span{color:var(--wh-faint);margin:0 7px}
.wh-crumb em{font-style:normal;color:var(--wh-text);font-weight:600}

/* ============ 通用卡片 ============ */
.wh-card{background:var(--wh-card);border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);box-shadow:var(--wh-shadow)}

/* ============ 首页 Hero ============ */
.wh-hero{background:#fff;border-bottom:1px solid var(--wh-line);padding:44px 0 46px;text-align:center}
.wh-hero h1{font-size:40px;font-weight:800;letter-spacing:-.8px;margin-bottom:12px}
.wh-hero h1 em{font-style:normal;color:var(--wh-green)}
.wh-hero p{color:var(--wh-muted);font-size:17px;max-width:660px;margin:0 auto 26px}
.wh-hero-search{max-width:620px;margin:0 auto 16px}
.wh-hero-search form{display:flex;align-items:center;background:#fff;border:2px solid var(--wh-green);border-radius:26px;padding:4px 4px 4px 22px;box-shadow:0 3px 12px rgba(46,164,79,.13)}
.wh-hero-search input{flex:1;border:0;height:44px;font-size:16px;color:var(--wh-text)}
.wh-hero-search button{height:44px;padding:0 26px;border-radius:22px;background:var(--wh-green);color:#fff;font-weight:700;font-size:15px;transition:.18s}
.wh-hero-search button:hover{background:var(--wh-green-dark)}
.wh-hot{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;font-size:13px;color:var(--wh-faint);max-width:820px;margin:0 auto}
.wh-hot a{color:var(--wh-muted);font-weight:600}
.wh-hot a:hover{color:var(--wh-green)}

/* ============ 区块标题 ============ */
.wh-sec{margin-bottom:38px}
.wh-sec-head{display:flex;align-items:baseline;gap:12px;margin-bottom:16px;border-bottom:2px solid var(--wh-green);padding-bottom:8px}
.wh-sec-head h2{font-size:22px;font-weight:800;letter-spacing:-.3px}
.wh-sec-head .wh-sec-en{font-size:12px;color:var(--wh-faint);font-weight:700;letter-spacing:1.4px;text-transform:uppercase}
.wh-sec-head .wh-sec-more{margin-left:auto;font-size:13px;font-weight:600;color:var(--wh-green)}
.wh-sec-head .wh-sec-more:hover{text-decoration:none;color:var(--wh-green-dark)}

/* ============ 分类卡（Browse by topic） ============ */
.wh-topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.wh-topic{
    display:block;min-width:0;background:#fff;border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);
    padding:18px 18px 16px;transition:.18s;position:relative;overflow:hidden;
}
.wh-topic:hover{border-color:var(--wh-green);box-shadow:var(--wh-shadow-hover);transform:translateY(-2px);text-decoration:none}
.wh-topic-ico{
    width:38px;height:38px;border-radius:10px;background:var(--wh-green-soft);
    display:flex;align-items:center;justify-content:center;margin-bottom:10px;
}
.wh-topic-ico svg{width:20px;height:20px;fill:var(--wh-green)}
.wh-topic h3{font-size:16px;font-weight:700;margin-bottom:3px;overflow-wrap:anywhere}
.wh-topic .wh-topic .wh-topic-n{font-size:12px;color:var(--wh-muted);font-weight:600}

/* ============ 指南卡（Featured guides） ============ */
.wh-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.wh-guide{
    min-width:0;background:#fff;border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);overflow:hidden;
    display:flex;flex-direction:column;transition:.18s;
}
.wh-guide:hover{box-shadow:var(--wh-shadow-hover);border-color:var(--wh-green-line);transform:translateY(-2px);text-decoration:none}
.wh-guide-img{position:relative;display:block;aspect-ratio:16/9;background:#eef1ef;overflow:hidden}
.wh-guide-img img{width:100%;height:100%;object-fit:cover;transition:.35s}
.wh-guide:hover .wh-guide-img img{transform:scale(1.05)}
.wh-guide-img .wh-guide-steps{
    position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.68);color:#fff;
    font-size:12px;font-weight:700;padding:4px 10px;border-radius:12px;backdrop-filter:blur(2px);
}
.wh-guide-body{padding:14px 16px 16px;flex:1 1 auto;display:flex;flex-direction:column}
.wh-guide-cat{font-size:11px;font-weight:700;color:var(--wh-green);letter-spacing:.6px;text-transform:uppercase;margin-bottom:6px}
.wh-guide h3{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:8px;overflow-wrap:anywhere}
.wh-guide:hover h3{color:var(--wh-green)}
.wh-guide p{font-size:13px;color:var(--wh-muted);line-height:1.55;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wh-guide-meta{margin-top:auto;font-size:12px;color:var(--wh-faint)}

/* ============ 列表行 ============ */
.wh-list{background:#fff;border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);overflow:hidden}
.wh-list-item{display:flex;gap:16px;padding:18px 20px;border-bottom:1px solid var(--wh-line-soft);transition:.16s}
.wh-list-item:last-child{border-bottom:0}
.wh-list-item:hover{background:#fbfdfc}
.wh-list-thumb{flex:0 0 132px;width:132px;height:90px;border-radius:6px;overflow:hidden;background:#eef1ef}
.wh-list-thumb img{width:100%;height:100%;object-fit:cover}
.wh-list-main{flex:1 1 auto;min-width:0}
.wh-list-main h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:5px}
.wh-list-main h3 a{color:var(--wh-title)}
.wh-list-main h3 a:hover{color:var(--wh-green);text-decoration:none}
.wh-list-desc{font-size:13.5px;color:var(--wh-muted);line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wh-list-meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12px;color:var(--wh-faint);align-items:center}
.wh-list-meta .wh-cat{color:var(--wh-green);font-weight:700}
.wh-list-meta a{color:var(--wh-faint)}
.wh-list-meta a:hover{color:var(--wh-green)}

/* ============ 侧栏 widget ============ */
.wh-widget{background:#fff;border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);margin-bottom:18px;overflow:hidden}
.wh-widget-head{padding:13px 16px;border-bottom:1px solid var(--wh-line-soft);display:flex;align-items:center;gap:8px}
.wh-widget-head h3{font-size:13px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--wh-title)}
.wh-widget-head .wh-widget-en{font-size:11px;color:var(--wh-faint);font-weight:600}
.wh-widget-body{padding:14px 16px}
.wh-widget-body.tight{padding:8px 0}

/* 排行榜 */
.wh-rank li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;border-bottom:1px dashed var(--wh-line-soft)}
.wh-rank li:last-child{border-bottom:0}
.wh-rank .wh-num{
    flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--wh-green-soft);
    color:var(--wh-green-dark);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.wh-rank li:nth-child(1) .wh-num,.wh-rank li:nth-child(2) .wh-num,.wh-rank li:nth-child(3) .wh-num{background:var(--wh-green);color:#fff}
.wh-rank a{font-size:14px;color:var(--wh-text);line-height:1.5}
.wh-rank a:hover{color:var(--wh-green);text-decoration:none}

/* 标签云 */
.wh-tags{display:flex;flex-wrap:wrap;gap:7px}
.wh-tags a{
    font-size:12.5px;font-weight:600;color:var(--wh-muted);background:var(--wh-bg);
    border:1px solid var(--wh-line);border-radius:14px;padding:4px 11px;
}
.wh-tags a:hover{background:var(--wh-green-soft);border-color:var(--wh-green-line);color:var(--wh-green-dark);text-decoration:none}

/* 栏目导航 */
.wh-cats li a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:9px 0;border-bottom:1px dashed var(--wh-line-soft);font-size:14px;color:var(--wh-text);font-weight:600;
}
.wh-cats li a:hover{color:var(--wh-green);text-decoration:none}
.wh-cats li:last-child a{border-bottom:0}
.wh-cats .wh-cat-n{font-size:11.5px;color:var(--wh-faint);font-weight:600}
.wh-cats li.on a{color:var(--wh-green)}

/* ============ 文章页 ============ */
.wh-article-head{margin-bottom:16px}
.wh-article-head h1{font-size:38px;font-weight:800;letter-spacing:-.8px;line-height:1.22;margin-bottom:12px}
.wh-article-desc{font-size:16.5px;color:var(--wh-muted);line-height:1.65;margin-bottom:14px}
.wh-article-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--wh-faint);align-items:center}
.wh-article-meta .wh-am-cat{font-weight:700;color:var(--wh-green)}
.wh-article-meta span{display:inline-flex;align-items:center;gap:5px}
.wh-article-meta svg{width:14px;height:14px;fill:#b4b4b4}

.wh-quick{
    background:var(--wh-green-soft);border:1px solid var(--wh-green-line);border-left:4px solid var(--wh-green);
    border-radius:var(--wh-radius);padding:16px 18px;margin-bottom:20px;
}
.wh-quick h4{font-size:13px;font-weight:800;color:var(--wh-green-dark);letter-spacing:.8px;text-transform:uppercase;margin-bottom:7px}
.wh-quick p{margin:0;font-size:15px;color:#2c4c36;line-height:1.7}

.wh-article-body{background:#fff;border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);padding:28px 32px 30px;overflow-x:hidden;overflow-wrap:break-word}
.wh-article-body h2{font-size:23px;font-weight:800;margin:30px 0 12px;padding-bottom:7px;border-bottom:2px solid var(--wh-green)}
.wh-article-body h2:first-child{margin-top:0}
.wh-article-body h3{font-size:18px;font-weight:700;margin:24px 0 10px;color:var(--wh-title)}
.wh-article-body p{font-size:16.5px;line-height:1.85;color:#3a3a3a;margin-bottom:16px}
.wh-article-body img{border-radius:6px;margin:6px 0 14px;box-shadow:0 1px 6px rgba(0,0,0,.07);max-width:100%;height:auto}
/* 正文内所有媒体（iframe/video/embed）强制不撑破容器 —— WP 正文里有固定 width=640 的 YouTube iframe */
.wh-article-body iframe,.wh-article-body video,.wh-article-body embed,.wh-article-body object,.wh-article-body svg{max-width:100%!important;width:100%!important;height:auto!important;aspect-ratio:16/9}
.wh-article-body iframe{height:auto!important}
.wh-article-body>*:not(iframe){max-width:100%}
.wh-article-body p{word-break:break-word;overflow-wrap:anywhere}
.wh-article-body table{width:100%;table-layout:auto;word-break:break-word}
.wh-article-body a{font-weight:600;text-decoration:underline}
.wh-article-body ul,.wh-article-body ol{margin:0 0 18px;padding-left:24px;list-style:disc}
.wh-article-body ol{list-style:decimal}
.wh-article-body li{font-size:16px;line-height:1.8;margin-bottom:7px}
.wh-article-body blockquote{border-left:4px solid var(--wh-green-line);background:#fafcfb;margin:0 0 18px;padding:12px 16px;color:var(--wh-muted);font-size:15px}
.wh-article-body table{margin-bottom:18px;font-size:14.5px}
.wh-article-body table td,.wh-article-body table th{border:1px solid var(--wh-line);padding:9px 12px}
.wh-article-body table th{background:var(--wh-bg);font-weight:700}
.wh-article-body .wh-img-wrap{margin:4px 0 18px}
.wh-article-body .wh-img-cap{font-size:13px;color:var(--wh-faint);text-align:center;margin-top:-6px}

/* 步骤块（wikiHow 签名元素） */
.wh-steps{margin:0 0 20px;counter-reset:whstep}
.wh-step{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--wh-line)}
.wh-step:last-child{border-bottom:0}
.wh-step-num{
    flex:0 0 auto;width:38px;height:38px;border-radius:50%;background:var(--wh-green);color:#fff;
    font-size:17px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.wh-step-main{flex:1 1 auto;min-width:0}
.wh-step-main h4{font-size:17.5px;font-weight:700;margin-bottom:5px;color:var(--wh-title)}
.wh-step-main p{margin:0;font-size:16px;line-height:1.8}

/* 反馈条 */
.wh-feedback{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--wh-green-soft);
    border:1px solid var(--wh-green-line);border-radius:var(--wh-radius);padding:14px 18px;margin:24px 0 0;
}
.wh-feedback .wh-fb-q{font-weight:700;color:var(--wh-green-dark);font-size:14.5px}
.wh-feedback button{
    background:#fff;border:1px solid var(--wh-green-line);color:var(--wh-green-dark);
    padding:6px 16px;border-radius:16px;font-size:13.5px;font-weight:600;transition:.16s;
}
.wh-feedback button:hover{background:var(--wh-green);color:#fff;border-color:var(--wh-green)}

/* 标签 */
.wh-tagrow{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.wh-tagrow a{font-size:12.5px;font-weight:600;color:var(--wh-muted);background:var(--wh-bg);border:1px solid var(--wh-line);border-radius:14px;padding:4px 12px}
.wh-tagrow a:hover{background:var(--wh-green-soft);border-color:var(--wh-green-line);color:var(--wh-green-dark);text-decoration:none}

/* 上下篇 */
.wh-prevnext{margin-top:22px;padding-top:16px;border-top:1px solid var(--wh-line);font-size:14px}
.wh-prevnext p{margin:0 0 8px;line-height:1.6}
.wh-prevnext strong{color:var(--wh-title);font-weight:700}
.wh-prevnext a{font-weight:600}

/* 相关指南 */
.wh-related{margin-top:30px}
.wh-related h3{font-size:19px;font-weight:800;margin-bottom:14px;padding-bottom:7px;border-bottom:2px solid var(--wh-green)}

/* ============ 分页 ============ */
.wh-pager{display:flex;flex-wrap:wrap;gap:6px;margin-top:20px;padding-top:4px}
.wh-pager a,.wh-pager span{
    display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;padding:0 11px;
    background:#fff;border:1px solid var(--wh-line);border-radius:6px;font-size:13.5px;font-weight:600;color:var(--wh-text);
}
.wh-pager a:hover{border-color:var(--wh-green);color:var(--wh-green);text-decoration:none}
.wh-pager .on{background:var(--wh-green);border-color:var(--wh-green);color:#fff}
/* 迅睿分页输出为 <ul><li><a></a></li></ul> 结构 */
.wh-pager ul{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.wh-pager ul li{margin:0}
.wh-pager ul li a,.wh-pager ul li span{
    display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;padding:0 11px;
    background:#fff;border:1px solid var(--wh-line);border-radius:6px;font-size:13.5px;font-weight:600;color:var(--wh-text);
}
.wh-pager ul li a:hover{border-color:var(--wh-green);color:var(--wh-green);text-decoration:none}
.wh-pager ul li.active a,.wh-pager ul li.on a{background:var(--wh-green);border-color:var(--wh-green);color:#fff}

/* ============ 栏目页头 ============ */
.wh-pagehead{background:#fff;border:1px solid var(--wh-line);border-radius:var(--wh-radius-lg);padding:26px 28px;margin-bottom:22px}
.wh-pagehead h1{font-size:32px;font-weight:800;letter-spacing:-.5px;margin-bottom:9px}
.wh-pagehead p{font-size:15px;color:var(--wh-muted);margin:0;max-width:820px;line-height:1.7}

/* ============ 空状态 ============ */
.wh-empty{text-align:center;padding:60px 20px;color:var(--wh-faint)}
.wh-empty svg{width:54px;height:54px;fill:#d5d5d5;margin-bottom:14px}
.wh-empty p{font-size:15px;color:var(--wh-muted)}

/* ============ 页脚 ============ */
.wh-footer{background:#fff;border-top:1px solid var(--wh-line);padding:34px 0 26px;margin-top:20px}
.wh-footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;margin-bottom:24px}
.wh-footer h4{font-size:12.5px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--wh-title);margin-bottom:11px}
.wh-footer li{margin-bottom:7px}
.wh-footer li a{font-size:13.5px;color:var(--wh-muted)}
.wh-footer li a:hover{color:var(--wh-green);text-decoration:none}
.wh-footer-brand p{font-size:13.5px;color:var(--wh-muted);margin:10px 0 0;max-width:300px;line-height:1.7}
.wh-copyright{border-top:1px solid var(--wh-line-soft);padding-top:16px;text-align:center;font-size:12.5px;color:var(--wh-faint)}
.wh-copyright a{color:var(--wh-muted)}

/* ============ 按钮 ============ */
.wh-btn-block{
    display:block;text-align:center;background:var(--wh-green);color:#fff!important;
    padding:10px 16px;border-radius:20px;font-size:14px;font-weight:700;transition:.16s;
}
.wh-btn-block:hover{background:var(--wh-green-dark);text-decoration:none}
.wh-btn-more{
    background:#fff;border:1px solid var(--wh-green-line);color:var(--wh-green-dark);
    padding:10px 30px;border-radius:22px;font-size:14px;font-weight:700;transition:.16s;
}
.wh-btn-more:hover{background:var(--wh-green);color:#fff;border-color:var(--wh-green)}
.wh-btn-more[disabled]{opacity:.6;cursor:default}

/* ============ 缩略图占位（站点图片库在数据盘事故中丢失，约 99% 图床失效） ============ */
.wh-thumb{
    position:relative;overflow:hidden;flex:0 0 auto;
    background:linear-gradient(135deg,#eef6f0 0%,#e3efe7 100%);
    background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23bcd9c6'%3E%3Cpath d='M20 3H4v10c0 2.21 1.79 4 4 4h6c2.21 0 4-1.79 4-4v-3h2c1.11 0 2-.89 2-2V5c0-1.11-.89-2-2-2zm0 5h-2V5h2v3zM4 19h16v2H4v-2z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:center;background-size:34%;
}
.wh-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.wh-thumb.no-img{display:flex;align-items:center;justify-content:center}
.wh-thumb-cap{
    position:absolute;left:0;right:0;bottom:0;padding:14px 10px 6px;font-size:11px;font-weight:700;
    color:#fff;letter-spacing:.6px;text-transform:uppercase;
    background:linear-gradient(transparent,rgba(0,0,0,.55));
}

/* ============ 返回顶部 ============ */
.wh-gotop{
    position:fixed;right:26px;bottom:30px;width:42px;height:42px;border-radius:50%;
    background:#fff;border:1px solid var(--wh-line);box-shadow:var(--wh-shadow-hover);
    display:none;align-items:center;justify-content:center;z-index:99;
}
.wh-gotop.on{display:flex}
.wh-gotop svg{width:17px;height:17px;fill:var(--wh-text)}
.wh-gotop:hover{border-color:var(--wh-green)}
.wh-gotop:hover svg{fill:var(--wh-green)}

/* ============ 移动端汉堡 ============ */
.wh-burger{display:none;width:40px;height:40px;border-radius:8px;align-items:center;justify-content:center}
.wh-burger svg{width:22px;height:22px;fill:var(--wh-text)}
.wh-mobile-nav{display:none;background:#fff;border-top:1px solid var(--wh-line);padding:6px 0 12px}
.wh-mobile-nav ul{display:block}
.wh-mobile-nav li a{display:block;padding:10px 4px;font-size:15px;font-weight:600;color:var(--wh-text);border-bottom:1px solid var(--wh-line-soft)}
.wh-mobile-nav li a:hover{color:var(--wh-green);text-decoration:none}

/* ============ 响应式 ============ */
@media (max-width:1000px){
    .wh-topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .wh-guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .wh-col-8,.wh-col-4{width:100%}
    .wh-col-4 .wh-side{position:static}
    .wh-footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
    .wh-wrap{padding:0 14px}
    .wh-header-top{height:auto;padding:12px 0;flex-wrap:wrap;gap:12px}
    .wh-head-search{order:3;max-width:none;flex:1 1 100%;min-width:0}
    .wh-head-search input,.wh-hero-search input{min-width:0}
    .wh-head-links{margin-left:auto}
    .wh-head-links a:not(.wh-hl-cta){display:none}
    .wh-logo-text{font-size:20px}
    .wh-logo-text small{display:none}
    .wh-burger{display:inline-flex}
    .wh-nav{display:none}
    .wh-mobile-nav.open{display:block}
    .wh-hero{padding:30px 0 32px}
    .wh-hero h1{font-size:26px;overflow-wrap:break-word}
    .wh-hero p{font-size:14.5px}
    .wh-hot{font-size:12.5px;gap:6px 12px}
    .wh-topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .wh-guide-grid{grid-template-columns:minmax(0,1fr)}
    .wh-article-head h1{font-size:26px;overflow-wrap:break-word}
    .wh-article-desc{font-size:15px}
    .wh-article-body{padding:20px 18px 24px}
    .wh-article-body p,.wh-step-main p{font-size:15.5px;line-height:1.8}
    .wh-article-body h2{font-size:20px}
    .wh-pagehead{padding:20px}
    .wh-pagehead h1{font-size:24px;overflow-wrap:break-word}
    .wh-list-item{padding:14px 16px;gap:12px}
    .wh-list-thumb{flex:0 0 96px;width:96px;height:68px}
    .wh-list-main h3{font-size:15.5px}
    .wh-footer-cols{grid-template-columns:minmax(0,1fr)}
    .wh-gotop{right:14px;bottom:16px}
}