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var(--brand);background:linear-gradient(90deg,var(--brand-soft),var(--paper-strong))}.wechat-strip p{margin:0;color:var(--ink);font-size:13px;line-height:1.5}.column-card-main{display:grid;color:inherit}.column-card-follow{display:flex;justify-content:center;width:100%;border-top:1px solid var(--line);border-radius:0;padding:9px 13px;font-size:12px}.column-card-follow:hover{background:var(--brand-soft);text-decoration:none}.column-empty-follow{max-width:430px;margin:18px auto 0}.topic-card-follow{align-self:center;margin-top:2px;font-size:12px}.wechat-about{display:grid;grid-template-columns:330px minmax(0,1fr);gap:24px;align-items:center;margin-top:28px;padding:22px;border-radius:16px;background:linear-gradient(135deg,#f1f6f1,#faf5ec)}.wechat-about-copy .wechat-search-pill{margin-top:10px}.wechat-about-banner{display:block;width:100%;max-width:560px;border-radius:10px;margin-top:14px;box-shadow:0 10px 24px #282a231a}.wechat-contact-banner{display:grid;grid-template-columns:minmax(0,430px) minmax(0,1fr);gap:22px;align-items:center;margin-top:24px;padding:18px 20px;border-radius:16px;background:linear-gradient(120deg,#edf3ee,#fbf5eb)}.wechat-contact-banner img{display:block;width:100%;border-radius:10px;box-shadow:0 12px 26px #282a231f}.wechat-contact-banner-copy h2{margin:4px 0 6px}.wechat-contact-card{width:100%;text-align:left;cursor:pointer;font:inherit}.contact-qr-row{display:flex;align-items:center;gap:12px;margin-top:6px}.contact-qr img{display:block;width:74px;height:74px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:4px}.contact-wechat-name{display:grid;gap:2px}.contact-wechat-name strong{color:var(--ink);font-family:Songti SC,STSong,serif;font-size:15px}.contact-wechat-name span{color:var(--muted);font-size:12px}.wechat-mobile-bar{position:fixed;left:50%;bottom:12px;transform:translate(-50%);z-index:800;display:flex;align-items:center;gap:6px;width:min(calc(100% - 28px),420px);border:1px solid var(--line);border-radius:14px;background:#fffdf8f2;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 14px 36px #282a232e;padding:8px 10px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}.wechat-mobile-bar-main{flex:1;display:flex;align-items:center;gap:10px;min-width:0;border:0;background:transparent;padding:0;text-align:left;cursor:pointer}.wechat-mobile-bar-avatar{display:grid;width:36px;height:36px;flex:0 0 auto;place-items:center;border-radius:10px;background:var(--brand);color:#fff;font-family:Songti SC,STSong,serif;font-size:16px;font-weight:700}.wechat-mobile-bar-copy{display:grid;gap:1px;min-width:0}.wechat-mobile-bar-copy strong{color:var(--ink);font-size:13.5px}.wechat-mobile-bar-copy span{overflow:hidden;color:var(--muted);font-size:11.5px;text-overflow:ellipsis;white-space:nowrap}.wechat-mobile-bar-cta{flex:0 0 auto;border-radius:999px;background:var(--brand);color:#fff;font-size:12.5px;font-weight:600;padding:6px 14px}.wechat-mobile-bar-close{display:grid;width:28px;height:28px;flex:0 0 auto;place-items:center;border-radius:50%;background:var(--wash);color:var(--muted);cursor:pointer}.wechat-mobile-bar-close:hover{background:var(--brand-soft);color:var(--brand)}.wechat-mobile-bar-close svg{width:13px;height:13px}@media (min-width: 768px){.wechat-mobile-bar{display:none}}@media (max-width: 1023px){.toc-wechat{display:none}}@media (max-width: 960px){.wechat-about{grid-template-columns:minmax(0,1fr)}.wechat-about-card{max-width:520px}.wechat-contact-banner{grid-template-columns:minmax(0,1fr)}.wechat-contact-banner img{max-width:520px}}@media (max-width: 767px){.footer-wechat-card{justify-content:center}.wechat-ribbon-text{font-size:11.5px}.wechat-ribbon-text svg{display:none}.wechat-ribbon-cta{padding:4px 10px;font-size:11.5px}.wechat-strip{align-items:flex-start;flex-direction:column;gap:4px}.wechat-promo{gap:13px;padding:12px 13px}.wechat-promo.is-lg .wechat-promo-qr img{width:108px;height:108px}.article-author-actions{width:100%}.article-author-actions .btn{flex:1;justify-content:center}.wechat-modal-qr{width:200px;height:200px}}:root{--safe-top: env(safe-area-inset-top, 0px);--safe-right: env(safe-area-inset-right, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px)}@media (spanning: single-fold-vertical){.shell,.admin-console{width:min(calc(viewport-segment-width(0) - 24px),1280px);margin-left:calc(viewport-segment-left(0) + 12px);margin-right:auto}.site-header .shell,.site-footer .shell{width:calc(viewport-segment-width(0) - 24px)}.mobile-drawer{width:min(320px,calc(viewport-segment-width(1) - 24px));right:calc(viewport-segment-left(1) + 12px)}}@media (spanning: single-fold-horizontal){body{padding-bottom:env(fold-height,0px)}}@media (orientation: landscape) and (max-height: 520px){.shell,.admin-console{padding-left:max(0px,env(safe-area-inset-left,0px));padding-right:max(0px,env(safe-area-inset-right,0px))}.site-header{padding-top:env(safe-area-inset-top,0px)}.header-inner{min-height:52px}.hero,.home-hero{padding-top:12px;padding-bottom:12px}.home-feature-strip{grid-template-columns:1fr}.home-feature-strip>div{padding:10px 12px}.site-footer{margin-top:24px}.footer-main{padding:28px 0 20px}}.back-to-top{bottom:calc(22px + env(safe-area-inset-bottom,0px))}.toast{bottom:calc(28px + env(safe-area-inset-bottom,0px))}.mobile-drawer{padding-top:calc(16px + env(safe-area-inset-top,0px));padding-bottom:calc(24px + env(safe-area-inset-bottom,0px))}.editor-shell{height:100vh;height:100dvh;padding-bottom:calc(56px + env(safe-area-inset-bottom,0px))}.editor-bottombar{height:calc(56px + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px)}.wechat-mobile-bar{bottom:calc(12px + env(safe-area-inset-bottom,0px))}@media (max-width: 767px){input,select,textarea{font-size:16px!important}.editor-title-input{font-size:18px!important}.editor-chip-input{font-size:15px!important}}@media (max-width: 767px){.btn{min-height:40px}.header-icon-btn,.drawer-close{width:40px;height:40px}.user-trigger{min-height:40px}.auth-action{min-height:36px}.topic-button,.status-tabs button{min-height:34px;padding:0 12px}.page-number{width:36px;height:36px}.share-button{min-height:34px}.action-btn{min-width:36px;height:36px}.wechat-modal-close{width:36px;height:36px}.editor-btn-ghost,.editor-btn-text{height:38px}.editor-btn-settings{width:38px;height:38px}.editor-btn-primary{height:40px}.editor-tool{width:36px;height:36px}.editor-view-switch button{height:32px;padding:0 12px}}@media (max-width: 420px){.header-actions{gap:4px}.header-actions .auth-action{padding:0 8px;font-size:12.5px}.header-actions .auth-action.register{display:none}.brand{font-size:17px}.search-pop{top:calc(58px + env(safe-area-inset-top,0px));right:10px;left:10px}}@media (max-width: 360px){.header-inner{gap:6px}.header-actions .auth-action{display:none}.header-actions{gap:2px}}@media (max-width: 480px){.shell{width:min(100% - 20px,1180px)}.section-head{gap:10px}.hero-community-stats{gap:10px 0}.hero-community-stat{padding:0 8px}.hero-community-stat dd{font-size:17px}.article-meta-grid{margin:8px 0 6px}.article-meta-grid span{padding:6px 8px;font-size:11px}.article-meta-grid strong{font-size:12px}.article-title{font-size:22px}.article-share{flex-wrap:nowrap;gap:6px;margin:6px 0 2px;overflow-x:auto}.article-share .meta{flex:0 0 auto;white-space:nowrap}.article-share .share-button{flex:0 1 auto;min-height:30px;padding:0 6px;font-size:12px;white-space:nowrap}.article-author-card{gap:10px;padding:14px}.pagination{flex-wrap:wrap;gap:8px}.page-numbers{order:3;width:100%;justify-content:center}.footer-link-groups{width:100%}.footer-group{min-width:0}}@media (min-width: 961px) and (max-width: 1100px){.article-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (min-width: 768px) and (max-width: 960px){.column-card-grid,.topic-index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 480px){.editor-topbar{padding:8px 10px}.editor-bottombar{padding-left:10px;padding-right:10px;gap:6px}.editor-bottom-actions{gap:4px}.editor-btn-primary{padding:0 14px;font-size:13px}.editor-surface{padding:24px 16px 52px}.editor-drawer{width:100%;max-width:none}.editor-preview-mask{padding:0}.editor-preview-modal{width:100%;height:100%;max-height:none;border-radius:0}}@media (max-width: 400px){.wechat-modal{padding:12px}.wechat-modal-card{padding:24px 16px 20px}.wechat-modal-qr{width:190px;height:190px}}@media (max-width: 767px){.site-footer{margin-top:24px}.footer-main{gap:14px;padding:20px 0 16px;text-align:center}.footer-brand{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 10px}.footer-slogan{max-width:none;margin:0;font-size:12px;line-height:1.4;text-align:left}.footer-link-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;width:100%;text-align:left}.footer-group{justify-items:start;gap:5px;min-width:0}.footer-group-title{margin:0;font-size:11px}.footer-group a{font-size:12.5px;line-height:1.25}.footer-wechat{grid-column:1 / -1;min-width:0;margin-top:0}.footer-wechat .footer-group-title{display:none}.footer-wechat-card{max-width:300px;margin:0 auto;padding:6px 8px;gap:8px}.footer-wechat-qr img{width:48px;height:48px;padding:3px}.footer-wechat-copy strong{font-size:12.5px}.footer-wechat-copy span{font-size:11px}.footer-wechat-hint{margin:4px 0 0;font-size:11px;justify-self:center;text-align:center}.footer-bottom{padding:10px 12px calc(10px + env(safe-area-inset-bottom,0px))}.footer-copyright{font-size:11px}}