:root{
  --bg:#f3f5f8;--panel:#fff;--panel-2:#f8fafc;--ink:#172033;--muted:#667085;--subtle:#98a2b3;
  --line:#d9e0ea;--line-2:#edf1f6;--accent:#2563eb;--accent-strong:#1d4ed8;--teal:#0f766e;
  --green:#138a57;--amber:#b45309;--red:#b42318;--nav:#111827;--nav-2:#1f2937;--soft:#eef4ff;
  --shadow:0 14px 34px rgba(20,31,55,.08);--radius:8px;
}
*{box-sizing:border-box}
html{min-width:320px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:14px;letter-spacing:0}
a{color:inherit;text-decoration:none}
button,.button{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:6px;min-height:36px;padding:8px 12px;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:7px;line-height:1}
button:hover,.button:hover{border-color:var(--accent);color:var(--accent)}
button:focus-visible,.button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(37,99,235,.18);outline-offset:2px}
.icon{width:18px;height:18px;flex:0 0 auto}.icon-lg{width:24px;height:24px}
.brand-mark{width:42px;height:42px;border-radius:8px;background:#2563eb;color:#fff;display:grid;place-items:center;font-weight:900;box-shadow:inset 0 -8px 20px rgba(17,24,39,.18)}
.brand-mark.large{width:58px;height:58px;font-size:20px}
.eyebrow{margin:0;color:var(--teal);font-weight:900;font-size:12px;text-transform:uppercase}

.login-page{min-height:100vh;display:grid;place-items:center;background:#eef2f7}
.login-shell{width:min(960px,calc(100vw - 32px));display:grid;grid-template-columns:minmax(0,1.1fr) 390px;gap:18px;align-items:stretch}
.login-intro{background:#111827;color:#fff;border-radius:8px;padding:34px;display:flex;flex-direction:column;justify-content:flex-end;min-height:430px;box-shadow:var(--shadow)}
.login-intro h1{font-size:34px;margin:14px 0 12px}.login-intro p{color:#cbd5e1;line-height:1.7;margin:0;max-width:620px}
.login-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.login-points span{display:inline-flex;gap:7px;align-items:center;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:8px 10px;font-weight:800}
.login-box{background:#fff;border:1px solid var(--line);border-radius:8px;padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}
.login-box-head{display:flex;gap:12px;align-items:center;margin-bottom:16px}.login-box-head strong{display:block;font-size:19px}.login-box-head span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
.login-box label{display:block;font-weight:800;margin:14px 0 0}.login-box input{width:100%;height:42px;border:1px solid var(--line);border-radius:6px;margin-top:7px;padding:0 12px;font-size:15px;background:#fff}
.login-box button{width:100%;height:42px;background:var(--accent);color:#fff;border-color:var(--accent);margin-top:20px}.login-box button .icon{order:2}
.login-error{background:#fff1f0;color:var(--red);border:1px solid #ffd6d2;padding:10px;border-radius:6px;margin-bottom:8px;font-weight:750}.login-note{margin-top:14px;color:var(--muted);font-size:13px;text-align:center}

.app-shell{min-height:100vh;display:grid;grid-template-columns:276px minmax(0,1fr)}
.sidebar{background:var(--nav);color:#e5e7eb;padding:18px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh;z-index:12}
.sidebar-brand{display:flex;gap:12px;align-items:center;padding:4px 4px 10px}.sidebar-brand strong{font-size:17px}.sidebar-brand span{display:block;color:#9ca3af;font-size:12px;margin-top:3px}
.sidebar-nav{display:grid;gap:14px;overflow:auto;padding-right:2px}.nav-group{display:grid;gap:5px}.nav-label{color:#8ea0b8;font-size:11px;font-weight:900;text-transform:uppercase;margin:0 0 2px 10px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 11px;border-radius:7px;color:#cfd7e3;font-weight:800}.nav-item .icon{color:#94a3b8}.nav-item.active,.nav-item:hover{background:#243044;color:#fff}.nav-item.active .icon,.nav-item:hover .icon{color:#93c5fd}
.sidebar-note{margin-top:auto;border-top:1px solid #374151;padding-top:14px;color:#aab3c2;font-size:12px;line-height:1.5}.sidebar-role{display:flex;gap:10px;align-items:flex-start;color:#fff;margin-bottom:9px}.sidebar-role strong{display:block}.sidebar-role span{display:block;color:#9ca3af;margin-top:2px}.sidebar-note p{margin:0}
.main{padding:22px;min-width:0;max-width:1540px;width:100%;margin:0 auto}
.topbar{display:grid;grid-template-columns:minmax(230px,1fr) minmax(260px,520px) auto;align-items:center;gap:16px;margin-bottom:18px}
.titlebar{display:flex;align-items:center;gap:12px;min-width:0}.topbar h1{margin:3px 0 0;font-size:26px;line-height:1.2;letter-spacing:0;overflow-wrap:anywhere}
.top-search{height:42px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:0 12px}.top-search input{border:0;outline:0;min-width:0;flex:1;font-size:14px}
.userbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.user-pill,.role-pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 10px;font-size:13px;font-weight:800;display:inline-flex;align-items:center;gap:6px}.role-pill{background:#ecfdf3;color:#067647;border-color:#abefc6}
.icon-button{width:38px;height:38px;padding:0;border-radius:7px}.mobile-menu{display:none}.mobile-mask{display:none}

.workbench-hero,.section-hero,.library-hero,.search-hero,.document-head{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;box-shadow:var(--shadow);display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,520px);gap:18px;align-items:end;margin-bottom:16px}
.workbench-hero h2,.section-hero h2,.library-hero h2,.search-hero h2,.document-head h2{font-size:28px;line-height:1.22;margin:6px 0 8px;letter-spacing:0}.workbench-hero p,.section-hero p,.library-hero p,.search-hero p,.document-head p{margin:0;color:var(--muted);line-height:1.65}
.hero-search{height:48px;display:flex;align-items:center;gap:10px;background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:0 8px 0 13px}.hero-search input{border:0;outline:0;background:transparent;flex:1;min-width:0;font-size:15px}.hero-search button{background:var(--accent);border-color:var(--accent);color:#fff}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:18px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:15px;display:grid;gap:5px;min-height:112px}.stat-card span{width:34px;height:34px;border-radius:8px;background:#eef4ff;color:var(--accent);display:grid;place-items:center}.stat-card strong{font-size:24px;line-height:1.15;overflow-wrap:anywhere}.stat-card em{color:var(--muted);font-style:normal;font-weight:800}
.content-section{margin:22px 0}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:11px}.section-head h2{font-size:20px;margin:2px 0 0;letter-spacing:0}.count-chip,.type-chip,.risk-chip,.size-chip{display:inline-flex;align-items:center;width:max-content;background:#f2f4f7;color:#475467;border:1px solid var(--line-2);border-radius:999px;padding:4px 8px;font-size:12px;font-weight:900}
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.module-grid.dense{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.module-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:15px;display:grid;grid-template-columns:44px minmax(0,1fr) 28px;gap:12px;align-items:center;min-height:112px;transition:.18s ease}.module-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-1px)}
.module-icon{width:44px;height:44px;border-radius:8px;background:#eef4ff;color:var(--accent);display:grid;place-items:center}.module-card strong{display:block;font-size:17px;margin-bottom:5px}.module-card em{font-style:normal;color:var(--muted);line-height:1.45}.module-arrow{color:var(--subtle)}.tone-hr .module-icon{background:#ecfdf3;color:#067647}.tone-boss .module-icon{background:#fff7ed;color:#b45309}.tone-video .module-icon{background:#fef3f2;color:#b42318}.tone-image .module-icon{background:#f0f9ff;color:#026aa2}
.section-hero,.library-hero,.search-hero{grid-template-columns:58px minmax(0,1fr) 130px;align-items:center}.section-hero-icon,.document-icon{width:58px;height:58px;border-radius:8px;background:#eef4ff;color:var(--accent);display:grid;place-items:center}.section-hero-icon .icon,.document-icon .icon{width:28px;height:28px}.section-count{justify-self:end;background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:12px;min-width:118px;text-align:center}.section-count strong{display:block;font-size:26px}.section-count span{color:var(--muted);font-weight:800;font-size:12px}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px;margin-bottom:16px}.toolbar form{display:flex;gap:8px;flex:1;align-items:center;min-width:0}.toolbar input,.toolbar select{height:38px;border:1px solid var(--line);border-radius:6px;padding:0 10px;min-width:0;background:#fff}.toolbar input{flex:1}.input-icon{width:36px;height:38px;border:1px solid var(--line);border-radius:6px;background:#f8fafc;color:var(--muted);display:grid;place-items:center}
.doc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:14px}.doc-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:8px;min-height:228px;transition:.18s ease;overflow:hidden;display:flex;flex-direction:column}.doc-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-1px)}.doc-card-main{padding:14px 14px 8px;display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px}.doc-card-copy{position:absolute;right:10px;top:10px;z-index:2;width:34px;height:34px;min-height:34px;padding:0;border-radius:7px;background:#fff;box-shadow:0 8px 20px rgba(20,31,55,.1)}.doc-card-copy:hover{background:#eef4ff}.doc-card-icon{width:42px;height:42px;border-radius:8px;background:#f2f4f7;color:var(--accent);display:grid;place-items:center}.doc-card-body{display:grid;gap:7px;min-width:0;padding-right:32px}.card-tags{display:flex;gap:6px;flex-wrap:wrap}.doc-card-title{font-size:17px;line-height:1.35;font-weight:900;overflow-wrap:anywhere}.doc-card-title:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.doc-card em,.doc-card small{color:var(--muted);line-height:1.45;font-style:normal}.doc-card em{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.doc-card-preview{margin:0 14px 12px;border:1px solid var(--line-2);border-radius:8px;background:#f8fafc;color:var(--ink);min-height:116px;display:block;overflow:hidden;position:relative;text-align:left;padding:0}.doc-card-preview:hover{border-color:var(--accent);color:var(--ink)}.doc-card-preview-text{padding:12px 12px 42px}.doc-card-preview-text p{margin:0;color:#344054;line-height:1.55;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-wrap}.doc-card-preview span{position:absolute;left:10px;bottom:9px;background:rgba(17,24,39,.84);color:#fff;border-radius:999px;padding:6px 9px;display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:850}.doc-card-preview-frame{height:148px;background:#fff}.doc-card-preview-frame iframe{width:200%;height:200%;border:0;transform:scale(.5);transform-origin:0 0;pointer-events:none;background:#fff}.doc-card-preview-image{height:148px;background:#111827}.doc-card-preview-image img{width:100%;height:100%;object-fit:cover;display:block}.doc-card-actions{display:flex;gap:6px;flex-wrap:wrap;padding:0 14px 14px;margin-top:auto}.doc-card-actions .button{min-height:32px;padding:7px 9px;font-size:12px}.risk-chip{background:#fffbeb;color:#92400e}
.doc-card-title:not(a):hover{color:var(--ink);text-decoration:none}.doc-card-preview{cursor:default;box-shadow:inset 0 0 0 1px rgba(255,255,255,.55)}.doc-card-preview:hover{border-color:var(--line-2);color:var(--ink)}.doc-card-preview span{background:rgba(255,255,255,.94);color:#344054;border:1px solid var(--line);box-shadow:0 8px 18px rgba(15,23,42,.08)}.doc-card-preview-frame:after,.doc-card-preview-image:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,0) 58%,rgba(248,250,252,.92) 100%);pointer-events:none}.doc-card-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:0 14px 14px;margin-top:auto}.doc-card-actions .button{width:100%;min-height:38px;padding:9px 10px;font-size:13px;font-weight:900}.doc-card-actions .button:first-child{background:#fff;color:var(--accent);border-color:#bfdbfe}.doc-card-actions .button:last-child{background:var(--accent);border-color:var(--accent);color:#fff}.doc-card-actions .button:first-child:hover{background:#eff6ff;border-color:var(--accent)}.doc-card-actions .button:last-child:hover{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}
.document-head{grid-template-columns:58px minmax(0,1fr);align-items:center;box-shadow:none}.doc-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.doc-meta span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 10px;color:var(--muted);font-size:13px;font-weight:800;display:inline-flex;align-items:center;gap:6px}.doc-meta .icon{width:15px;height:15px}
.doc-actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.article{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;line-height:1.78;max-width:1040px}.article h1,.article h2,.article h3{line-height:1.3}.article pre{white-space:pre-wrap;word-break:break-word;background:#f8fafc;padding:14px;border-radius:6px;border:1px solid var(--line-2)}
.doc-preview-card{position:relative;height:420px;border:1px solid var(--line);background:#fff;border-radius:8px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer}.doc-preview-card:hover{border-color:var(--accent)}.doc-frame{width:100%;height:100%;border:0;background:#fff;display:block;pointer-events:none}.doc-preview-shade{position:absolute;inset:auto 16px 16px 16px;background:rgba(17,24,39,.9);color:#fff;border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:13px 14px;display:grid;grid-template-columns:34px minmax(0,1fr);gap:3px 10px;align-items:center}.doc-preview-shade .icon{grid-row:1/3;width:24px;height:24px;color:#bfdbfe}.doc-preview-shade strong{font-size:16px}.doc-preview-shade span{color:#cbd5e1;font-size:13px}
.reader-page{min-height:100vh;background:#eef2f7;display:grid;grid-template-rows:auto minmax(0,1fr)}.reader-topbar{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 18px}.reader-topbar h1{margin:2px 0 0;font-size:20px;line-height:1.2;overflow-wrap:anywhere}.reader-topbar nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.reader-main{min-height:0;padding:14px}.reader-main iframe{width:100%;height:calc(100vh - 104px);border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow)}.reader-image{height:calc(100vh - 104px);display:grid;place-items:center}.reader-image img{max-width:100%;max-height:100%;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow)}
.empty{background:#fff;border:1px dashed var(--line);border-radius:8px;padding:24px;color:var(--muted);min-height:90px;display:grid;align-items:center}
.media-toolbar{position:sticky;top:0;z-index:5}.view-toggle{display:flex;gap:6px}.view-toggle .active{background:var(--accent);border-color:var(--accent);color:#fff}
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:14px}.media-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:.18s ease;min-width:0}.media-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-1px)}
.media-preview{height:auto;min-height:0;padding:0;border:0;border-radius:0;background:#111827;display:block;position:relative;overflow:hidden;color:#fff}.media-card img,.media-card video{width:100%;aspect-ratio:4/3;object-fit:cover;background:#111827;display:block}.media-float{position:absolute;left:10px;bottom:10px;background:rgba(17,24,39,.78);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:6px 9px;display:inline-flex;align-items:center;gap:5px;font-weight:850}.media-float em{font-style:normal}.play-badge{position:absolute;inset:0;margin:auto;width:52px;height:52px;border-radius:999px;background:rgba(255,255,255,.94);color:var(--accent);display:grid;place-items:center;box-shadow:0 12px 28px rgba(0,0,0,.22)}.play-badge .icon{width:24px;height:24px}
.media-info{padding:11px;display:grid;gap:7px;min-height:106px}.media-info strong{font-size:14px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.folder-line{color:var(--muted);font-size:12px;word-break:break-all;display:flex;align-items:flex-start;gap:5px}.folder-line .icon{width:14px;height:14px;margin-top:1px}.media-actions{display:flex;gap:6px;flex-wrap:wrap;padding:10px;border-top:1px solid var(--line-2);margin-top:auto}.media-actions button,.media-actions .button{min-height:32px;padding:7px 9px;font-size:12px}
.media-grid.list-view{display:grid;grid-template-columns:1fr}.media-grid.list-view .media-card{display:grid;grid-template-columns:190px minmax(0,1fr) auto;align-items:stretch}.media-grid.list-view .media-preview{height:100%}.media-grid.list-view .media-card img,.media-grid.list-view .media-card video{height:100%;aspect-ratio:16/10}.media-grid.list-view .media-info{min-height:0}.media-grid.list-view .media-actions{border-top:0;border-left:1px solid var(--line-2);align-content:center;min-width:190px}
.key-point{color:var(--red);font-weight:900;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}.article .key-point{background:#fff1f0;border-radius:4px;padding:0 2px}
.industry-hero{background:#fff;border:1px solid var(--line);border-radius:8px;padding:20px;box-shadow:var(--shadow);display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px;align-items:center;margin-bottom:16px}.industry-hero h2{font-size:28px;line-height:1.22;margin:6px 0 8px}.industry-hero p{margin:0;color:var(--muted);line-height:1.65}.emphasis-box{background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;padding:15px}.emphasis-box strong{display:block;color:#9a3412;margin-bottom:7px}.emphasis-box mark{background:transparent;color:var(--red);font-weight:900;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.mindmap{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:18px;align-items:center;box-shadow:var(--shadow);margin:16px 0}.mind-root{min-height:154px;border:2px solid #bfdbfe;background:#eff6ff;border-radius:8px;display:grid;place-items:center;text-align:center;padding:18px;color:var(--accent)}.mind-root span{width:44px;height:44px;border-radius:8px;background:#dbeafe;display:grid;place-items:center}.mind-root strong{font-size:20px;color:#1e3a8a}.mind-root em{font-style:normal;color:#475569}.mind-branches{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;position:relative}.mind-node{border:1px solid var(--line);background:#f8fafc;border-radius:8px;padding:12px}.mind-node-title{display:flex;align-items:center;gap:8px;font-weight:900;margin-bottom:9px}.mind-node-title .icon{color:var(--accent)}.mind-children{display:flex;gap:6px;flex-wrap:wrap}.mind-children span{background:#fff;border:1px solid var(--line-2);border-radius:999px;padding:5px 8px;color:#475467;font-weight:800;font-size:12px}.process-map .mind-root{border-color:#abefc6;background:#ecfdf3;color:#067647}.process-map .mind-root span{background:#d1fadf}.process-map .mind-root strong{color:#065f46}
.industry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:14px}.industry-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px;display:grid;gap:13px}.industry-card header{display:flex;gap:12px;align-items:center}.industry-icon{width:44px;height:44px;border-radius:8px;background:#eef4ff;color:var(--accent);display:grid;place-items:center}.industry-card h3{margin:0;font-size:19px}.industry-card p{margin:4px 0 0;color:var(--muted);line-height:1.45}.playbook-columns{display:grid;grid-template-columns:1fr;gap:10px}.playbook-columns>div{border-top:1px solid var(--line-2);padding-top:10px}.playbook-columns strong{display:block;margin-bottom:6px}.playbook-columns ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.6}.rule-strip{display:flex;gap:8px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px}.rule-strip span{background:#fff1f0;color:var(--red);border:1px solid #ffd6d2;border-radius:999px;padding:7px 10px;font-weight:900}
.pagination{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:18px}.pagination a,.pagination span{background:#fff;border:1px solid var(--line);border-radius:6px;padding:8px 11px;font-weight:800;color:var(--muted)}.pagination a.active{background:var(--accent);border-color:var(--accent);color:#fff}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(8px);background:#111827;color:#fff;border-radius:8px;padding:11px 14px;opacity:0;pointer-events:none;transition:.2s;z-index:40;box-shadow:0 16px 36px rgba(0,0,0,.22);font-weight:850}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.modal{position:fixed;inset:0;background:rgba(8,13,26,.88);z-index:30;display:grid;grid-template-rows:auto minmax(0,1fr);padding:18px}.modal[hidden]{display:none!important}.modal-toolbar{height:44px;display:flex;align-items:center;justify-content:space-between;color:#fff}.modal-toolbar strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:14px}.modal-close{background:#fff;color:#111827}.modal-canvas{min-height:0;display:grid;place-items:center;position:relative}.modal img,.modal video{max-width:100%;max-height:calc(100vh - 84px);object-fit:contain;background:#05070d;border-radius:8px}.modal video{width:min(1100px,100%);aspect-ratio:16/9}.modal iframe{display:none;width:100%;height:calc(100vh - 84px);border:0;background:#fff;border-radius:8px;box-shadow:0 18px 50px rgba(0,0,0,.28)}.modal-nav{position:absolute;top:50%;z-index:2;width:52px;height:52px;min-height:52px;padding:0;border-radius:999px;background:rgba(255,255,255,.94);color:#111827;border-color:rgba(255,255,255,.88);box-shadow:0 16px 38px rgba(0,0,0,.28);transform:translateY(-50%)}.modal-nav:hover{background:#fff;color:var(--accent);border-color:#fff}.modal-nav .icon{width:25px;height:25px}.modal-nav-prev{left:12px}.modal-nav-prev .icon{transform:rotate(180deg)}.modal-nav-next{right:12px}
.media-single{padding:0;border:0;background:transparent;display:block;max-width:1040px}.media-single img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:#fff;display:block}
@media(max-width:1100px){.topbar{grid-template-columns:1fr}.userbar{justify-content:flex-start}.top-search{max-width:none}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workbench-hero,.industry-hero{grid-template-columns:1fr}.mindmap{grid-template-columns:1fr}.media-grid.list-view .media-card{grid-template-columns:160px minmax(0,1fr)}.media-grid.list-view .media-actions{grid-column:1/-1;border-left:0;border-top:1px solid var(--line-2)}}
@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;left:0;top:0;width:min(292px,82vw);transform:translateX(-104%);transition:.2s ease;height:100vh}.sidebar.open{transform:translateX(0)}.mobile-menu{display:inline-flex}.mobile-mask.show{display:block;position:fixed;inset:0;background:rgba(15,23,42,.38);z-index:10}.main{padding:14px}.section-hero,.library-hero,.search-hero{grid-template-columns:48px minmax(0,1fr)}.section-count{grid-column:1/-1;justify-self:stretch}.toolbar,.toolbar form{display:grid}.toolbar form{grid-template-columns:36px minmax(0,1fr)}.toolbar select,.toolbar button{grid-column:1/-1}.view-toggle{justify-content:flex-start}.login-shell{grid-template-columns:1fr}.login-intro{min-height:auto}.workbench-hero h2,.section-hero h2,.library-hero h2,.search-hero h2,.document-head h2,.industry-hero h2{font-size:23px}.stat-grid{grid-template-columns:1fr}.doc-grid,.module-grid,.module-grid.dense,.media-grid,.industry-grid{grid-template-columns:1fr}.media-grid.list-view .media-card{display:flex}.media-grid.list-view .media-card img,.media-grid.list-view .media-card video{height:auto;aspect-ratio:4/3}.topbar h1{font-size:23px}.reader-topbar{height:auto;align-items:flex-start;display:grid}.reader-topbar nav{justify-content:flex-start}.reader-main iframe,.reader-image{height:calc(100vh - 150px)}}
@media(max-width:520px){.login-shell{width:calc(100vw - 20px)}.login-intro,.login-box{padding:20px}.toolbar form{grid-template-columns:1fr}.input-icon{display:none}.section-hero,.library-hero,.search-hero,.document-head{grid-template-columns:1fr}.section-hero-icon,.document-icon{width:48px;height:48px}.doc-card{grid-template-columns:1fr}.media-actions button,.media-actions .button{flex:1}.hero-search{height:auto;display:grid;grid-template-columns:28px 1fr;padding:9px}.hero-search button{grid-column:1/-1}.mind-root{min-height:120px}.mind-branches{grid-template-columns:1fr}.doc-preview-card{height:320px}.doc-preview-shade{inset:auto 10px 10px 10px;grid-template-columns:1fr}.doc-preview-shade .icon{display:none}.modal{padding:10px}.modal iframe{height:calc(100vh - 64px)}.modal-nav{width:44px;height:44px;min-height:44px}.modal-nav-prev{left:6px}.modal-nav-next{right:6px}}