:root{--brand:#2459d3;--brand-hover:#1c48ae;--ink:#1d293b;--body:#48566b;--muted:#617087;--line:#e9edf3;--soft:#f5f7fb;--brand-soft:#f1f5fd;--radius:12px;--container:1200px;color-scheme:light;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;font-size:16px;color:var(--ink);background:#fff}
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@media(min-width:1500px){:root{--container:1240px}.main-grid{grid-template-columns:minmax(0,1fr) 306px;gap:60px}}
@media(max-width:1120px){.header-inner{gap:28px}.main-nav{gap:22px}.account-links .help{display:none}.main-grid{gap:32px;grid-template-columns:minmax(0,1fr) 270px}.positioning h1{font-size:1.1875rem}.search-area{width:460px}.brand>span{font-size:1rem}.account-links{gap:12px}.news-media{width:140px;height:96px}.circle-panel{padding:20px}}
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@media(max-width:359px){.container{width:calc(100% - 32px)}.brand{gap:8px}.brand>span{font-size:.875rem}.brand small{font-size:.5625rem}.account-links .wechat{font-size:.6875rem}.account-links .wechat svg{display:none}.news-media{width:80px;height:64px}.news-copy h3{font-size:1rem}.search-submit span{display:none}.search-submit{padding:0 12px}.positioning h1{font-size:1.0625rem}.search-state{font-size:.6875rem}}
@media(prefers-reduced-motion:no-preference){a,button{transition:color 140ms ease-out,background-color 140ms ease-out}html{scroll-behavior:smooth}}

.type-tabs a{display:flex;align-items:center;justify-content:center}.search-hints a{display:inline-flex;align-items:center}.pagination{display:flex;align-items:center;justify-content:center;gap:18px}.pagination a{display:inline-flex;align-items:center;gap:8px;border:1px solid #d7dee9;border-radius:6px;min-height:44px;padding:8px 15px}.pagination span{color:var(--muted);font-size:12px}.empty-state .primary-button{display:inline-flex;flex:initial}.site-footer{flex-wrap:wrap}.site-footer a{min-height:24px}.search-state>a{color:var(--brand);min-height:28px;white-space:nowrap}.news-meta{flex-wrap:wrap}.news-meta time{overflow-wrap:anywhere}.news-meta a{white-space:nowrap}
@media(max-width:720px){body{padding-bottom:80px}.account-links{gap:12px}.account-links .register{display:none}.account-links .wechat svg{display:none}.brand small{letter-spacing:0}.site-footer{display:block}.site-footer>a{margin-right:16px}.positioning h1{display:block;position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%)}.news-meta a{margin-left:0}.search-hints a{min-height:28px}}

/* Preserve the original visual hierarchy when users enlarge text. */
.active-filters{display:flex;gap:12px;flex-wrap:wrap}.active-filters a{color:var(--brand);min-height:28px}.paid-label{color:#80501b}.topic-picker a[aria-current]{color:var(--brand);font-weight:600}
@media(max-width:720px){.header-inner{flex-wrap:wrap;gap:8px 16px;padding-block:12px}.brand{min-width:0;max-width:100%}.brand>span{overflow-wrap:anywhere}.account-links{margin-left:auto;flex-wrap:wrap}.search-form{min-width:0;flex-wrap:wrap}.search-form input{min-width:60px;flex:1 1 90px}.search-form select{max-width:100%;flex:0 1 auto}.feed-controls{flex-wrap:wrap;gap:8px 20px}.type-tabs{flex-wrap:wrap;gap:20px}.topic-picker{max-width:100%}.topic-picker summary{min-height:44px;white-space:normal}.search-state{flex-wrap:wrap}.mobile-nav{flex-wrap:wrap}.news-copy{min-width:0}.news-copy h3{overflow-wrap:anywhere}}