/* User-product design layer. Never loaded by the independent admin application. */
:root,body.authenticated {
  color-scheme:light;
  --bg:#f7f8fa; --surface:#fff; --surface-2:#f2f1f6;
  --text:#242432; --muted:#646370; --line:#e5e3eb;
  --purple:#6742d7; --purple-2:#6742d7; --danger:#a83245;
  --ui-accent-soft:#f2edfc; --ui-accent-hover:#5530b4;
  --ui-reading:#454551; --ui-radius:12px; --ui-gap:20px;
  --ui-shadow:0 2px 8px #24243204;
  --shadow:0 12px 40px #24243212;
  --ui-duration:160ms; --ui-ease:cubic-bezier(.2,.6,.3,1);
  --ui-font:"Segoe UI Variable","Microsoft YaHei UI","PingFang SC",system-ui,sans-serif;
}
html{scroll-behavior:auto;scroll-padding-top:160px}
body,body.authenticated{background:var(--bg);color:var(--text);font-family:var(--ui-font);font-size:15px;line-height:1.6}
body::before,body.authenticated::before{display:none}
button,input,select,textarea{font-family:inherit}
button,a,input,select,summary{-webkit-tap-highlight-color:transparent}
button,a{touch-action:manipulation}
button{transition:background-color var(--ui-duration),border-color var(--ui-duration),color var(--ui-duration),transform var(--ui-duration)}
button:disabled{cursor:not-allowed;transform:none!important}
:where(button,a,input,select,summary,[tabindex]):focus-visible{outline:3px solid #6742d7!important;outline-offset:3px!important;box-shadow:none}
::selection{background:#e5dafa;color:#34215e}
.skip-link{position:fixed;z-index:150;top:8px;left:16px;padding:10px 18px;background:var(--purple);color:white;border-radius:8px;transform:translateY(-150%)}
.skip-link:focus{transform:none}
.container,.library-intro,.library-panel,.skill-intro,.skill-panel,.knowledge-intro,.knowledge-panel,.resume-intro,.resume-panel{width:min(1120px,calc(100% - 64px));margin-inline:auto}
/* Shared navigation: one compact row; two comfortable rows on small screens. */
body.authenticated .app-page>.topbar,.app-page>.topbar{position:sticky;top:0;z-index:30;height:auto;min-height:76px;padding:12px max(32px,calc((100vw - 1280px)/2));gap:20px;display:flex;flex-wrap:nowrap;background:#fffffff7;border-bottom:1px solid var(--line);box-shadow:none;backdrop-filter:blur(8px)}
.topbar .brand{flex:none;gap:10px;font-size:21px;letter-spacing:-.025em;font-weight:750;color:var(--text)}
.topbar .brand>span:last-child{display:inline}
.brand-mark{width:34px;height:34px;background:transparent;box-shadow:none!important;border-radius:9px;flex:none}
.brand-mark img{display:block;width:100%;height:100%;object-fit:contain}
.topbar .main-nav{display:flex;flex:1;min-width:0;gap:2px;justify-content:center;align-items:center;align-self:stretch;order:0;width:auto;height:auto}
.app-page>.topbar .main-nav .nav-link{min-height:44px;height:auto;justify-content:center;padding:0 12px;gap:0;border-bottom:0;border-radius:8px;font-size:14px;white-space:nowrap;color:var(--muted);font-weight:550}
.topbar .nav-dot{display:none}
.app-page>.topbar .main-nav .nav-link{position:relative;background:transparent}
.app-page>.topbar .main-nav .nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:1px;background:var(--purple);opacity:0;transform:scaleX(.65);transition:opacity .16s ease,transform .16s ease}
.app-page>.topbar .main-nav .nav-link:hover{background:transparent;color:var(--purple)}
.app-page>.topbar .main-nav .nav-link.active{background:transparent;color:var(--purple);font-weight:700}
.app-page>.topbar .main-nav .nav-link.active::after{opacity:1;transform:scaleX(1)}
.guest-actions,.user-area{flex:none;gap:10px;align-items:center}
.guest-actions button,.topbar .ghost-button{min-height:44px;font-size:13px;padding:0 15px;border-radius:8px;box-shadow:none;white-space:nowrap}
.guest-register{background:var(--purple)}
.guest-register:hover{background:var(--ui-accent-hover)}
body.authenticated .sync-state{display:none}
.user-chip{gap:9px}
.user-chip strong{font-size:13px;font-weight:650;color:var(--text)}
body.authenticated .user-chip small{color:var(--muted);font-size:11px}
.avatar{width:34px;height:34px;font-size:14px;box-shadow:none}
body.authenticated .ghost-button{color:var(--muted);background:var(--surface);border-color:var(--line)}
.guest-banner{position:static;z-index:auto;padding:10px 24px;gap:12px;background:#f2edfc;color:#55486c;border-color:#e5ddf5;min-height:54px}
.guest-banner p{font-size:13px;white-space:normal;overflow:visible;line-height:1.7}
.guest-banner span{font-size:11px;background:white;color:var(--purple);white-space:nowrap}
.guest-banner button{min-height:44px;font-size:13px;color:var(--purple);white-space:nowrap}
.guest-mode .search::after{font-size:11px;color:#6a547f;bottom:-24px}
/* A consistent, restrained content masthead and quieter real-data counters. */
.product-view{padding:0 0 56px;min-height:calc(100dvh - 230px)}
:is(.library-intro,.skill-intro,.tools-intro,.ency-intro,.knowledge-intro,.resume-intro){padding:38px 0 28px;display:flex;align-items:center;gap:24px;margin-bottom:0}
.eyebrow{font-size:12px;line-height:1.5;font-weight:600;letter-spacing:.015em;color:var(--purple)}
:is(.library-intro,.skill-intro,.tools-intro,.ency-intro,.knowledge-intro,.resume-intro) h1{margin:0 0 9px;font-size:34px;line-height:1.3;letter-spacing:-.035em;font-weight:750}
:is(.library-intro,.skill-intro,.tools-intro,.ency-intro,.knowledge-intro,.resume-intro) p{margin:0;color:var(--purple);font-size:15px;line-height:1.85;max-width:700px}
.library-count,.tool-total,.ency-count{display:block;min-width:110px;border-left:1px solid #d9cef0;padding:8px 0 8px 24px;text-align:left;font-size:12px;color:var(--muted)}
.library-count strong,.tool-total strong,.ency-count strong,.resume-counts strong{display:block;font-size:27px;line-height:1.25;color:var(--purple);font-weight:650;font-variant-numeric:tabular-nums}
.library-count span,.tool-total span,.ency-count span{display:block;margin-top:4px;color:var(--muted);font-size:12px}
.resume-counts{display:flex;gap:24px;color:var(--muted)}
.resume-counts>div{border-left:1px solid #d9cef0;padding-left:18px}
.resume-counts span{font-size:12px;color:var(--muted)}
:is(.library-panel,.skill-panel,.tool-directory,.ency-directory,.knowledge-panel,.resume-panel){background:white;border:1px solid var(--line);border-radius:var(--ui-radius);box-shadow:var(--ui-shadow);margin-bottom:0}
.skill-panel,.tool-directory,.ency-directory,.resume-panel{padding:26px}
:is(.feed-heading,.skill-toolbar,.tool-directory-head,.ency-head,.knowledge-toolbar){display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:24px;margin:0 0 22px}
.feed-heading,body.authenticated .feed-heading,.knowledge-toolbar{padding:26px 28px 22px;margin:0}
:is(.feed-heading,.skill-toolbar,.tool-directory-head,.ency-head,.knowledge-toolbar) h2,body.authenticated .feed-heading h2{margin:0 0 7px;font-size:20px;line-height:1.4;letter-spacing:-.02em;color:var(--text);font-weight:650}
:is(.feed-heading,.skill-toolbar,.tool-directory-head,.ency-head,.knowledge-toolbar) p,body.authenticated .feed-heading p{color:var(--muted);font-size:13px;line-height:1.7;margin:0}
.search,body.authenticated .search,.tool-search,.ency-search{display:flex;gap:0;width:min(100%,360px);max-width:100%;min-height:46px;border:1px solid #dcd9e5;background:#fafafd;border-radius:9px;overflow:visible;padding:0;box-shadow:none}
.search:focus-within,.tool-search:focus-within,.ency-search:focus-within{border-color:var(--purple);box-shadow:0 0 0 3px #6742d714}
.search svg{width:17px;margin-left:13px;color:var(--muted);flex:none}
.search input,body.authenticated .search input,.tool-search input,.ency-search input{width:100%;min-width:0;flex:1;padding:10px 12px;color:var(--text);background:transparent;border:0;font-size:14px;outline:0;border-radius:8px}
input::placeholder{color:#71707d;opacity:1}
.search button,body.authenticated .search button,.tool-search button,.ency-search button{flex:none;min-height:44px;padding:0 16px;border:0;border-left:1px solid var(--line);border-radius:0 8px 8px 0;background:var(--ui-accent-soft);color:var(--purple);font-size:13px;font-weight:650}
.search button:hover,.tool-search button:hover,.ency-search button:hover{background:#e9e0fa}
/* Filters stay legible and retain their existing business parameters. */
.skill-filters{display:block;margin:20px 0 24px;padding-top:20px;border-color:var(--line)}
.category-chips,.type-filters{gap:6px;flex-wrap:wrap;overflow:visible}
.type-filters{margin-top:12px}
.filter-chip,.type-filter,.knowledge-filter,.knowledge-sub-filter,.knowledge-small-filter,.knowledge-favorite-filter,.tool-filter,.ency-filter{min-height:44px;padding:9px 12px;font-size:12px;border-radius:7px;color:var(--muted);border-color:var(--line);background:#fff;line-height:1.6;white-space:normal}
.filter-chip.active,.type-filter.active,.knowledge-filter.active,.knowledge-sub-filter.active,.knowledge-small-filter.active,.knowledge-favorite-filter.active,.tool-filter.active,.ency-filter[aria-pressed=true]{background:var(--ui-accent-soft);color:var(--purple);border-color:#d8caf1}
.tool-filters{gap:6px;margin:20px 0 24px;padding-bottom:20px;border-color:var(--line)}
.tool-category-toggle{min-height:44px;color:var(--purple)}
.ency-filters{margin:20px 0 10px;gap:7px}
/* News: compact spotlight, genuinely readable ranking, continuous list. */
.hotspot-block{margin:24px 28px 0}
.hotspot-heading{align-items:center;margin-bottom:16px}
.hotspot-heading h2{font-size:20px;margin:0;font-weight:650}
.hotspot-heading>span{font-size:11px;color:var(--muted)}
.hotspot-layout,.hotspot-loading{grid-template-columns:minmax(0,2.05fr) minmax(300px,1fr);gap:16px;min-height:300px}
.hotspot-layout:empty{display:none}
.hotspot-lead{min-height:300px;border-radius:10px;box-shadow:none;background:#202036;border-color:#29273d;transform:none!important}
.hotspot-lead:hover,.hotspot-lead:focus-visible{box-shadow:none;border-color:#a693d5}
.hotspot-lead::after{display:none}
.hotspot-lead-media{background:#232035}
.hotspot-lead-media::after{background:linear-gradient(90deg,#1b172dee,#201d32bb)}
.hotspot-lead-media .image-placeholder{opacity:.35;background-color:#252136}
.hotspot-lead-shade{background:linear-gradient(180deg,transparent,#181529bb)}
.hotspot-lead-content{width:100%;padding:26px}
.hotspot-lead-badge{min-height:25px;font-size:11px;background:#b09bff22;color:#e1d5ff;border-color:#bba8f644}
.hotspot-lead h3{font-size:26px;line-height:1.4;letter-spacing:-.025em;margin:14px 0 10px;-webkit-line-clamp:3}
.hotspot-lead p{color:#e0dce8;font-size:13px;line-height:1.8;-webkit-line-clamp:2}
.hotspot-lead-meta{font-size:11px;color:#d4cde1;gap:12px}
.hotspot-lead-meta span:first-child,.hotspot-lead-meta span:last-child{color:#e1d5ff;opacity:1}
.hotspot-ranking{padding:12px 14px 6px;border-radius:10px;background:#faf9fc;border-color:var(--line)}
.hotspot-ranking-heading{padding-bottom:8px}
.hotspot-ranking-heading h3{font-size:15px;font-weight:650;line-height:1.4}
.hotspot-ranking-heading span{color:var(--muted);font-size:10px}
.hotspot-row{grid-template-columns:27px minmax(0,1fr);gap:10px;min-height:58px;padding:4px 0;border-color:var(--line);transform:none!important}
.hotspot-copy h3{font-size:13px;line-height:1.4;font-weight:600;margin-bottom:3px}
.hotspot-copy time{display:block;font-size:10.5px;line-height:1.4;color:var(--muted)}
.hotspot-rank::after{color:var(--purple);font-size:17px;font-variant-numeric:tabular-nums}
.hotspot-row:nth-child(n+4) .hotspot-rank::after{color:#737180}
.hotspot-skeleton-lead,.hotspot-skeleton-ranking{border-radius:10px;min-height:300px}
.hotspot-loading{min-height:364px}
.article-row{min-height:138px;grid-template-columns:minmax(0,1fr) 132px;gap:26px;padding:22px 28px}
.article-row h3{font-size:18px;font-weight:650;line-height:1.65;letter-spacing:-.015em}
.article-row p{color:var(--muted);font-size:14px;line-height:1.8;margin:7px 0 10px}
.article-meta{font-size:12px;color:var(--muted);flex-wrap:wrap}
.topic-tag{font-size:11px;color:#5e5571;background:#f1eef6}
.read-action{font-size:12px;color:var(--purple)}
.article-thumbnail{width:132px;height:88px;border-radius:8px;background:#f4f1fa}
.skeleton-grid{display:block;border-top:1px solid var(--line)}
.skeleton-grid .skeleton-card,.skeleton-grid .skeleton-card:first-child{min-height:138px;margin:0;border-bottom:1px solid var(--line);border-radius:0;background:#f2f1f6}
/* Skills and tools share a rhythm, not an identical content template. */
.skill-grid,.tool-grid,.skill-skeleton,.tool-loading{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.skill-card,.tool-card{padding:22px;border-radius:10px;border-color:var(--line);box-shadow:none;transition:background-color 160ms,border-color 160ms,transform 160ms}
.skill-card{min-height:240px;padding:20px}
.skill-card:hover,.skill-card:focus,.tool-card:hover{background:#fcfbff;transform:translateY(-2px);border-color:#bdaadd;box-shadow:none}
.skill-category{font-size:12px;color:var(--purple)}
.skill-type,.skill-kind,.skill-category-label{font-size:11px;color:#65566f;background:#f1edf6;line-height:1.6}
.skill-type.package,.skill-kind{color:var(--purple);background:var(--ui-accent-soft)}
.skill-card h3{margin:14px 0 8px;font-size:17px;line-height:1.5;font-weight:650}
.skill-card>p{font-size:14px;line-height:1.8;color:var(--muted);-webkit-line-clamp:3}
.skill-card-tags{margin:10px 0 8px}
.skill-card-tags span,.skill-tag-list span{font-size:11px;color:#605969;background:#f3f1f6}
.skill-card-facts span,.skill-card-facts span:nth-child(n+3),.skill-facts span{display:inline-block;font-size:11px;color:#5f566c;border-radius:6px;background:#faf8fc}
.skill-card-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:18px}
.skill-platforms{font-size:11px;line-height:1.7;color:var(--muted);max-width:100%}
.skill-action{font-size:12px;line-height:1.7;color:var(--purple);margin-left:auto}
.tool-card-head{gap:13px;margin-bottom:14px}
.tool-icon{width:44px;height:44px;border-radius:9px;color:var(--purple);background:#efe8fc}
.tool-icon img{padding:3px;object-fit:contain}
.tool-card h2{font-size:18px;line-height:1.5;font-weight:650}
.tool-card-summary{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:16px}
.tool-card-tags span{font-size:11px;line-height:1.5;color:#62586e;background:#f3f0f7}
.tool-card-footer{font-size:12px;color:var(--muted);line-height:1.7;margin-top:18px}
.tool-card-link{color:var(--purple)}
/* Encyclopedia is a reading route; practical guides retain scene filters. */
.ency-item{padding:24px 4px}
.ency-item h2{font-size:19px;line-height:1.6;font-weight:650;margin:10px 0 8px}
.ency-item p{font-size:14px;color:var(--muted);line-height:1.85}
.ency-meta{font-size:12px;color:#655973;flex-wrap:wrap}
.ency-read{font-size:12px;color:var(--purple)}
.knowledge-filter-block{padding:20px 28px;background:#fdfdfe;border-color:var(--line)}
.knowledge-primary-filters,.knowledge-sub-filters,.knowledge-utility-filters{gap:6px;flex-wrap:wrap;overflow:visible}
.knowledge-row{padding:24px 28px;gap:20px;min-height:144px}
.knowledge-rail{border-radius:9px;font-size:14px;background:var(--ui-accent-soft)}
.knowledge-rail.prompt-guide{color:#246953}
.knowledge-rail.tool-review{color:#8c511d}
.knowledge-row h3{font-size:18px;line-height:1.65;font-weight:650}
.knowledge-row-content>p{color:var(--muted);font-size:14px;line-height:1.8}
.knowledge-row-meta span,.knowledge-row-bottom{color:var(--muted);font-size:11px;line-height:1.7}
.knowledge-row-side>span{color:var(--muted);font-size:11px}
.knowledge-card-favorite{width:44px;height:44px;color:var(--purple);border-radius:8px}

/* Career files: functional preview rows with paired, consistent actions. */
.resume-tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin-bottom:22px}
.resume-tab{min-height:48px;font-size:16px;line-height:1.5;border-radius:0;padding:8px 2px;color:var(--muted)}
.resume-tab.active{color:var(--purple);border-bottom-color:var(--purple)}
.resume-example-types{margin:0 0 20px}
.resume-example-type{min-height:44px;font-size:13px;color:var(--muted);border-radius:7px}
.resume-example-type.active{color:var(--purple);background:var(--ui-accent-soft)}
.resume-toolbar{gap:18px}
.resume-filters{display:flex;flex-wrap:wrap;gap:8px;overflow:visible}
.resume-filters select{min-height:44px;border:1px solid var(--line);border-radius:8px;color:var(--muted);background:#fff;padding:8px 10px;max-width:100%;font-size:13px}
.resume-summary{font-size:13px;color:var(--muted);margin:20px 0}
.resume-grid{border-radius:9px;border-color:var(--line)}
.resume-template-card{min-height:142px;grid-template-columns:76px minmax(0,1fr) auto;gap:20px;padding:20px;border-color:var(--line)}
.resume-card-preview{width:72px;height:99px;border-radius:5px}
.resume-template-card h3{font-size:18px;line-height:1.6;margin:7px 0;font-weight:650}
.resume-template-card p{font-size:13px;line-height:1.8;color:var(--muted)}
.resume-card-kicker,.resume-card-meta{font-size:12px;color:var(--muted)}
.resume-card-meta span,.resume-detail-meta span{font-size:11px;color:#62586f;line-height:1.7}
.resume-card-actions button{border-radius:8px;font-size:13px;min-height:44px}
.resume-download-button{background:var(--purple);border-color:var(--purple)}
.resume-download-button:hover{background:var(--ui-accent-hover)}
/* States and controls: one vocabulary, distinguish absence from failure. */
.pagination,.tool-pagination,.ency-pagination{gap:16px;align-items:center;margin:24px 0 8px;padding:0;font-size:13px;color:var(--muted)}
.pagination button,.tool-pagination button,.ency-pagination button,body.authenticated .pagination button{min-width:80px;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--purple);font-size:13px}
.pagination button:hover:not(:disabled),.tool-pagination button:hover:not(:disabled),.ency-pagination button:hover:not(:disabled){background:var(--ui-accent-soft)}
.pagination button:disabled,.tool-pagination button:disabled,.ency-pagination button:disabled{color:#77727f;background:#f4f4f7;opacity:.7}
.notice,.empty-state,.tool-state,.ency-state,.resume-empty,.hotspot-empty{color:var(--muted);background:#fafafd;border-color:var(--line);border-radius:10px;box-shadow:none;padding:40px 24px;font-size:14px;line-height:1.8}
:is(.empty-state,.tool-state,.ency-state,.resume-empty) h3{color:var(--text);font-size:18px;line-height:1.7}
:is(.empty-state,.tool-state,.ency-state,.resume-empty) p,body.authenticated .empty-state p,.skill-panel .empty-state p,.knowledge-panel .empty-state p{color:var(--muted);font-size:14px}
.empty-state button,.notice button,.tool-retry,.ency-button,.hotspot-error button{min-height:44px;padding:9px 16px;border-radius:8px;color:var(--purple);background:#fff;border:1px solid var(--line)}
.error-notice,.hotspot-error,.tool-error,.article-error{color:var(--danger);background:#fff7f8;border-color:#f1d6de;font-size:14px;line-height:1.8}
body.authenticated .notice.error-notice p,.notice.error-notice p{color:var(--danger);font-size:14px}
.hotspot-error{flex-wrap:wrap;gap:16px}
.toast{background:#eef7f1;color:#25583c;border:1px solid #c5e3cf;border-radius:9px;box-shadow:var(--shadow);font-size:14px}
.toast.error{background:#fff4f5;color:var(--danger);border-color:#edd0d8}
.toast-stack{z-index:110;max-width:calc(100% - 32px)}
/* Reading surfaces: calm framing, close at hand, generous but bounded measure. */
.modal-backdrop,body.authenticated .modal-backdrop{padding:24px;align-items:center;background:#23213077;backdrop-filter:blur(3px)}
.article-modal,.skill-modal,.knowledge-modal,.resume-modal{width:min(900px,100%);max-height:calc(100dvh - 48px);border-radius:12px;border:1px solid var(--line);background:white;color:var(--text);box-shadow:0 24px 80px #24243222;overscroll-behavior:contain;scrollbar-gutter:stable}
.resume-modal{width:min(1120px,100%)}
.modal-header,body.authenticated .modal-header{min-height:68px;padding:12px 24px;backdrop-filter:none;background:#fff;border-color:var(--line)}
.modal-header span{font-size:13px;letter-spacing:0;color:var(--muted)}
.modal-header button,body.authenticated .modal-header button{width:44px;height:44px;background:#f7f6fa;border:1px solid var(--line);color:var(--muted);border-radius:8px}
.article-detail,.skill-detail,.knowledge-detail{padding:36px 54px 54px;max-width:800px;margin:auto}
.resume-detail{padding:28px 32px 40px}
.resume-detail .resume-detail-actions .download-button{width:auto;min-width:144px;padding:10px 20px}
.resume-preview-section{margin-top:18px}
.article-detail h1,.skill-detail h1,.knowledge-detail h1,.resume-detail h1{font-size:30px;line-height:1.55;letter-spacing:-.025em;font-weight:700;overflow-wrap:anywhere;margin:14px 0}
.article-detail time,body.authenticated .article-detail time,.knowledge-detail-meta,.resume-detail-meta{color:var(--muted);font-size:13px;line-height:1.8}
.knowledge-detail-kicker span:nth-child(n+2),.knowledge-tags span{color:#605969;font-size:12px;line-height:1.6}
.article-summary,body.authenticated .article-summary,.knowledge-lead,.skill-lead,.resume-detail-summary{color:var(--ui-reading);font-size:16px;line-height:1.9}
.article-summary,.knowledge-lead{padding:18px 22px;background:#f6f3fc;border-left:3px solid var(--purple);border-radius:0 8px 8px 0;margin:26px 0}
.article-content,body.authenticated .article-content,.knowledge-content,.encyclopedia-prose{color:var(--ui-reading);font-size:16px;line-height:1.95}
.article-content h2,.knowledge-content h2,.encyclopedia-prose h2{font-size:21px;font-weight:650;line-height:1.6;margin:32px 0 14px}
.article-content h3,.knowledge-content h3,.encyclopedia-prose h3{font-size:18px;font-weight:650;line-height:1.6}
.article-content a,.knowledge-content a,.encyclopedia-prose a{color:var(--purple);text-underline-offset:3px}
.article-content img{border-radius:8px;max-width:100%;height:auto}
.skill-detail section p,.skill-detail li{font-size:15px;line-height:1.9;color:var(--ui-reading)}
.skill-detail section h2{font-size:19px;line-height:1.6}
.skill-detail pre,.knowledge-template pre{font-size:14px;line-height:1.85;padding:20px;border-radius:8px;background:#f7f6fa;color:#43404c}
.skill-detail section{margin-top:28px}
.variable-item span,.skill-faq p,.tool-detail-section p,.tool-detail-section ul,.tool-detail-section ol{color:var(--muted)}
.variable-item span{font-size:12px;line-height:1.8}
.skill-detail-head{flex-wrap:wrap}
.copy-button,.download-button,.auth-primary,.tool-official{background:var(--purple);color:white;border-radius:8px;min-height:44px;font-size:13px;line-height:1.7}
.copy-button:hover,.download-button:hover,.auth-primary:hover,.tool-official:hover{background:var(--ui-accent-hover)}
.section-title-row{gap:12px;flex-wrap:wrap}
.copy-button{flex:none;padding:10px 15px}
.skill-membership-dialog{width:min(440px,calc(100% - 32px));padding:28px;border-radius:12px;border-color:var(--line);font-size:15px;color:var(--ui-reading);line-height:1.85}
.skill-membership-dialog h2{font-size:23px;line-height:1.6;color:var(--text)}
.skill-membership-dialog::backdrop,.tool-dialog::backdrop,.ency-dialog::backdrop{background:#23213088}
.tool-dialog{width:min(820px,calc(100% - 48px));border-radius:12px;max-height:94dvh;color:var(--text);border-color:var(--line)}
.tool-dialog-head{padding:18px 32px;background:white;gap:16px}
.tool-dialog-head h2{font-size:25px;line-height:1.55;margin:7px 0 0}
.tool-dialog-head button{border-color:var(--line);background:#f7f6fa}
.tool-detail-body{padding:28px 40px 36px;font-size:15px;line-height:1.9}
.tool-detail-summary{color:var(--ui-reading);font-size:16px}
.tool-detail-section h3{font-size:18px;color:var(--text);margin-bottom:12px}
.tool-detail-footer p{font-size:13px;color:var(--muted)}
.tool-official{display:inline-flex;align-items:center;padding:10px 20px}
.ency-dialog{width:min(1080px,calc(100% - 48px));max-height:94dvh;border-radius:12px;border-color:var(--line)}
.ency-dialog-bar{padding:14px 28px;color:var(--muted);font-size:13px}
.ency-reading-scroll{max-height:calc(94dvh - 74px)}
.ency-reading{grid-template-columns:170px minmax(0,1fr);gap:34px;padding:32px}
.ency-toc h3{font-size:13px;color:var(--text)}
.ency-toc-link{font-size:13px;line-height:1.7;min-height:44px;padding:10px 0;color:var(--muted)}
.ency-content h1{font-size:29px;line-height:1.55;font-weight:700}
.ency-detail-summary{color:var(--muted);font-size:16px;line-height:1.9}
.ency-related h3{font-size:16px;line-height:1.7}
.resume-preview{border-radius:8px;border-color:var(--line);background:#f1f0f4}
.resume-preview-frame{height:min(74dvh,900px)}
/* Authentication is a functional, trustworthy form, not a promotional hero. */
.auth-backdrop{background:#23213077!important}
.auth-modal{width:min(500px,100%);max-height:calc(100dvh - 48px);padding:32px;border-radius:12px;border-color:var(--line);box-shadow:0 24px 80px #24243222;scrollbar-gutter:stable}
.auth-close{width:44px;height:44px;top:16px;right:16px;border-radius:8px;background:#f7f6fa;color:var(--muted)}
.auth-heading{align-items:flex-start;gap:14px;padding-right:34px}
.auth-heading .brand-mark{width:36px;height:36px;flex-basis:36px;margin-top:4px}
.auth-heading .eyebrow{font-size:11px;letter-spacing:0}
.auth-heading h2{font-size:22px;line-height:1.6;margin:6px 0}
.auth-heading p{font-size:13px;color:var(--muted);line-height:1.7}
.auth-tabs{margin:24px 0 22px;padding:3px;gap:3px;background:#f3f1f7;border-radius:8px}
.auth-tab{min-height:44px;border-radius:6px;font-size:12px;padding:8px 4px;color:var(--muted)}
.auth-tab.active{color:var(--purple);box-shadow:0 1px 3px #24243210}
.auth-form{gap:17px}
.auth-form>label,.auth-code-row label{font-size:13px;color:var(--text);font-weight:550}
.auth-form input{min-height:48px;background:#fff;border-color:#dcd9e5;border-radius:8px;color:var(--text);font-size:15px}
.auth-form input:focus{border-color:var(--purple);box-shadow:0 0 0 3px #6742d714}
.auth-check{min-height:44px;line-height:1.8}
.auth-check input{width:18px;height:18px;min-height:18px;accent-color:var(--purple)}
.auth-check a{color:var(--purple);text-decoration:underline;text-underline-offset:3px}
.auth-primary{min-height:48px}
.auth-demo{min-height:44px;border-radius:8px;color:var(--muted);font-size:13px}
.sms-request{min-height:48px;border-radius:8px;color:var(--purple);font-size:12px}
.auth-message{color:var(--danger);background:#fff5f7;border-color:#f1d6de;line-height:1.8;font-size:13px}
.login-page{background:var(--bg);color:var(--text)}
.login-visual{background:#f2edf9;min-height:100dvh;color:var(--text)}
.login-visual::before,.signal{display:none}
.login-copy h1{color:var(--text);font-size:48px;line-height:1.4}
.login-copy p,.login-foot{color:var(--muted)}
.login-panel,.login-card{background:#fff;color:var(--text)}
.login-card{box-shadow:none}
.input-wrap{background:#fff;border-color:var(--line);border-radius:8px}
.login-card input{color:var(--text)}
.form-subtitle,.remember,.demo-account{color:var(--muted)}
footer,body.authenticated footer{background:#fff;border-color:var(--line);padding:28px 0;color:var(--muted)}
footer .container{display:flex;align-items:center;justify-content:space-between;gap:24px}
.footer-brand{display:flex;gap:16px;align-items:center}
footer span{font-size:17px;letter-spacing:-.02em;font-weight:700}
footer p{margin:0;font-size:12px;color:var(--muted)}
footer nav{display:flex;gap:18px}
footer nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--muted);font-size:12px}
@media(max-width:1240px){
  .app-page>.topbar .main-nav .nav-link{padding:0 9px;font-size:13px}
  .user-chip div{display:none}
  .app-page>.topbar{gap:14px}
}
@media(max-width:1080px){
  body.authenticated .app-page>.topbar,.app-page>.topbar{flex-wrap:wrap;padding:12px 32px 8px;gap:8px 20px}
  .app-page>.topbar .main-nav{order:3;flex-basis:100%;width:100%;justify-content:space-between}
  .app-page>.topbar .main-nav .nav-link{font-size:14px;padding:0 14px}
  .topbar .guest-actions,.topbar .user-area{margin-left:auto}
  .skill-grid,.skill-skeleton,.tool-grid,.tool-loading{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hotspot-layout,.hotspot-loading{grid-template-columns:minmax(0,1.8fr) minmax(285px,1fr)}
  .hotspot-lead h3{font-size:24px}
  .hotspot-lead-content{padding:22px}
  .resume-toolbar{align-items:stretch;flex-direction:column}
  .resume-toolbar .search{width:100%}
  .ency-head{align-items:center;flex-direction:row}
}
@media(max-width:820px){
  .hotspot-layout,.hotspot-loading{grid-template-columns:1fr;min-height:0}
  .hotspot-lead{min-height:270px}
  .hotspot-skeleton-lead{min-height:270px}
  .hotspot-skeleton-ranking{min-height:364px}
  :is(.feed-heading,.skill-toolbar,.tool-directory-head,.ency-head,.knowledge-toolbar){flex-direction:column;align-items:stretch;gap:18px}
  .search,body.authenticated .search,.tool-search,.ency-search{width:100%;margin-top:0}
  .guest-mode .search{margin-bottom:8px}
  .resume-counts{gap:12px}
  .resume-template-card{grid-template-columns:76px minmax(0,1fr);gap:12px 16px}
  .resume-card-actions{grid-column:2;justify-content:flex-start}
  .resume-card-preview{grid-row:span 2}
  .ency-reading{grid-template-columns:140px minmax(0,1fr);padding:26px;gap:24px}
}
@media(max-width:760px){
  .container,.library-intro,.library-panel,.skill-intro,.skill-panel,.knowledge-intro,.knowledge-panel,.resume-intro,.resume-panel{width:calc(100% - 32px)}
  body.authenticated .app-page>.topbar,.app-page>.topbar{padding:10px 16px 8px;gap:8px 16px}
  .topbar .brand{font-size:20px}
  .topbar .brand>span:last-child{display:inline}
  .topbar .main-nav{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;min-height:92px;height:auto}
  .app-page>.topbar .main-nav .nav-link{font-size:13px;min-height:44px;padding:0 4px;line-height:1.5}
  .guest-actions button,.topbar .ghost-button{min-height:44px;padding:0 11px;font-size:12px}
  .avatar{width:30px;height:30px;font-size:13px}
  .guest-banner{padding:12px 16px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 12px;justify-items:start}
  .guest-banner span{align-self:center}
  .guest-banner p{grid-column:1;grid-row:2;font-size:12px}
  .guest-banner button{grid-column:2;grid-row:1/3}
  :is(.library-intro,.skill-intro,.tools-intro,.ency-intro,.knowledge-intro,.resume-intro){padding:26px 0 22px;align-items:start;gap:18px}
  :is(.library-intro,.skill-intro,.tools-intro,.ency-intro,.knowledge-intro,.resume-intro) h1{font-size:28px;line-height:1.4;margin:0 0 7px}
  :is(.library-intro,.skill-intro,.tools-intro,.ency-intro,.knowledge-intro,.resume-intro) p{font-size:14px;line-height:1.8}
  .library-count,.tool-total,.ency-count,.resume-counts{display:none}
  .product-view{padding-bottom:32px}
  .skill-panel,.tool-directory,.ency-directory,.resume-panel{padding:20px 16px}
  .feed-heading,body.authenticated .feed-heading,.knowledge-toolbar{padding:22px 18px}
  :is(.feed-heading,.skill-toolbar,.tool-directory-head,.ency-head,.knowledge-toolbar) h2{font-size:19px}
  .hotspot-block{margin:20px 18px 0}
  .hotspot-heading{flex-direction:row;gap:12px;align-items:start}
  .hotspot-heading h2{font-size:19px;white-space:nowrap}
  .hotspot-heading>span{font-size:10px;text-align:right;line-height:1.7}
  .hotspot-lead-content{padding:22px 20px}
  .hotspot-lead h3{font-size:23px;line-height:1.45}
  .hotspot-lead-meta{font-size:10px;flex-wrap:wrap}
  .hotspot-lead-meta span:last-child{display:none}
  .hotspot-copy h3{font-size:13px}
  .hotspot-copy time{font-size:11px}
  .hotspot-row{min-height:64px}
  .article-row{grid-template-columns:minmax(0,1fr) 88px;gap:14px;padding:20px 18px;align-items:start}
  .article-row h3{font-size:16px;line-height:1.65}
  .article-row p{font-size:13px;line-height:1.8;-webkit-line-clamp:2}
  .article-meta time{font-size:11px}
  .article-thumbnail{width:88px;height:66px;margin-top:4px}
  .skill-grid,.skill-skeleton,.tool-grid,.tool-loading{grid-template-columns:1fr;gap:12px}
  .skill-card,.tool-card{padding:20px;min-height:0}
  .skill-card h3{font-size:18px;margin-top:16px}
  .skill-card-bottom{margin-top:14px;padding-top:8px}
  .category-chips,.type-filters{flex-wrap:wrap;overflow:visible}
  .filter-chip,.type-filter{flex:0 1 auto;font-size:12px}
  .skill-filters{margin:20px 0;overflow:visible}
  .knowledge-filter-block{padding:18px}
  .knowledge-primary-filters,.knowledge-sub-filters,.knowledge-utility-filters{flex-wrap:wrap;overflow:visible}
  .knowledge-row{grid-template-columns:minmax(0,1fr) 44px;padding:20px 18px;gap:12px}
  .knowledge-rail{display:none}
  .knowledge-row h3{font-size:16px;line-height:1.65}
  .knowledge-row-content>p{font-size:13px;line-height:1.8}
  .knowledge-row-bottom{font-size:11px;line-height:1.7}
  .knowledge-card-favorite{width:44px;height:44px}
  
  .ency-item{padding:22px 0}
  .ency-item h2{font-size:18px;line-height:1.7}
  .ency-item p{font-size:14px}
  .resume-filters select{flex:1;min-width:100px}
  .resume-template-card{grid-template-columns:60px minmax(0,1fr);gap:14px;padding:18px 14px}
  .resume-card-preview{width:58px;height:80px;grid-row:1}
  .resume-template-card h3{font-size:16px}
  .resume-card-actions{grid-column:1/-1;justify-content:stretch;width:100%}
  .resume-card-actions button{flex:1;min-width:0}
  .resume-template-card p{font-size:12px}
  .resume-tabs{gap:20px}
  .resume-tab{font-size:15px}
  .pagination,.tool-pagination,.ency-pagination{gap:10px;flex-wrap:wrap;font-size:12px}
  .pagination button,.tool-pagination button{padding:8px 11px;min-width:74px}
  .modal-backdrop,body.authenticated .modal-backdrop{padding:8px;align-items:center}
  .article-modal,.skill-modal,.knowledge-modal,.resume-modal{max-height:calc(100dvh - 16px);border-radius:10px;width:100%}
  .modal-header,body.authenticated .modal-header{padding:10px 18px;min-height:64px}
  .article-detail,.skill-detail,.knowledge-detail{padding:24px 22px 36px}
  .resume-detail{padding:22px 16px 32px}
  .article-detail h1,.skill-detail h1,.knowledge-detail h1,.resume-detail h1{font-size:24px;line-height:1.6}
  .article-content,body.authenticated .article-content,.knowledge-content,.encyclopedia-prose{font-size:15px;line-height:1.95}
  .article-summary,body.authenticated .article-summary,.knowledge-lead,.skill-lead{font-size:15px;line-height:1.9}
  .article-summary,.knowledge-lead{padding:16px;margin:22px 0}
  .variable-list,.knowledge-learning,.knowledge-ai-grid{grid-template-columns:1fr}
  .skill-detail pre,.knowledge-template pre{padding:16px;font-size:13px}
  .tool-dialog,.ency-dialog{width:calc(100% - 16px);max-height:calc(100dvh - 16px);border-radius:10px}
  .tool-dialog-head,.ency-dialog-bar{padding:14px 20px}
  .tool-dialog-head h2{font-size:22px}
  .tool-detail-body{padding:22px;font-size:15px}
  .ency-reading-scroll{max-height:calc(100dvh - 94px)}
  .ency-reading{display:block;padding:24px 22px}
  .ency-toc{position:static;margin-bottom:24px;padding-bottom:18px}
  .ency-toc-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}
  .ency-toc-link{font-size:12px;min-height:44px;overflow-wrap:anywhere}
  .ency-content h1{font-size:24px}
  .encyclopedia-prose h2{font-size:20px}
  .ency-detail-summary{font-size:15px}
  .resume-preview{min-height:380px}
  .resume-preview-frame{height:72dvh}
  .auth-backdrop{padding:8px!important}
  .auth-modal{max-height:calc(100dvh - 16px);padding:26px 22px;border-radius:10px}
  .auth-heading{display:block;padding-right:32px}
  .auth-heading .brand-mark{display:none}
  .auth-heading h2{font-size:20px}
  .auth-tabs{grid-template-columns:repeat(2,1fr);gap:3px;margin:20px 0}
  .auth-tab{font-size:13px}
  .auth-code-row{grid-template-columns:minmax(0,1fr) 102px;gap:8px}
  .auth-close{right:14px;top:14px}
  footer .container{align-items:start;flex-direction:column;gap:12px}
  .footer-brand{display:block}
  .footer-brand p{margin-top:6px}
  footer nav{gap:24px}
  .toast-stack{left:16px;right:16px;bottom:16px}
}
@media(max-width:360px){
  .container,.library-intro,.library-panel,.skill-intro,.skill-panel,.knowledge-intro,.knowledge-panel,.resume-intro,.resume-panel{width:calc(100% - 24px)}
  .app-page>.topbar .main-nav .nav-link{font-size:12px}
  .article-row{gap:10px;padding:18px 14px;grid-template-columns:minmax(0,1fr) 76px}
  .article-thumbnail{width:76px;height:60px}
  .hotspot-block{margin-inline:14px}
  .hotspot-lead-content{padding:18px}
  .hotspot-lead h3{font-size:21px}
  .skill-panel,.tool-directory,.ency-directory,.resume-panel{padding:18px 14px}
  .article-detail,.skill-detail,.knowledge-detail{padding-inline:18px}
  .auth-modal{padding:24px 18px}
  .guest-actions{gap:6px}
  .guest-actions button{padding-inline:9px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
/* Encyclopedia diagrams: informative local illustrations, not decorative covers. */
.ency-item{display:flex;align-items:center;justify-content:space-between;gap:26px}
.ency-item-copy{display:block;flex:1;min-width:0}
.ency-image{display:block;flex:none;overflow:hidden;border:1px solid #e6dff0;border-radius:8px;background:#f6f3fd}
.ency-item>.ency-image{width:176px;aspect-ratio:600/380}
.ency-item>.ency-image.is-unavailable{aspect-ratio:auto}
.ency-image img{display:block;width:100%;height:auto;object-fit:contain}
.ency-image-fallback{display:grid;place-items:center;padding:16px;min-height:80px;font-size:12px;line-height:1.7;color:var(--muted);text-align:center}
.ency-figure{margin:24px 0 28px}
.ency-figure .ency-image{width:100%;max-width:600px;margin-inline:auto}
.ency-figure figcaption{margin:10px 0 0;font-size:13px;line-height:1.8;color:var(--muted)}
@media(max-width:760px){
  .ency-item{gap:14px;align-items:flex-start}
  .ency-item>.ency-image{width:88px;margin-top:6px}
  .ency-item .ency-meta{flex-wrap:wrap;gap:5px}
  .ency-item-copy h2{font-size:17px}
  .ency-item>.ency-image .ency-image-fallback{min-height:56px;padding:8px;font-size:11px}
  .ency-figure{margin:20px 0}
}