:root{--bg:#fff;--bg-soft:#f6f8fc;--surface:#fff;--text:#172033;--text-soft:#667085;--line:#e7ebf2;--blue:#1664ff;--blue-dark:#0e4cd4;--purple:#7759ff;--green:#00a870;--orange:#f57c00;--radius:18px;--shadow:0 16px 48px #1e366014}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;line-height:1.7}a{color:inherit}img{max-width:100%}.site-header{z-index:50;backdrop-filter:blur(16px);background:#ffffffeb;border-bottom:1px solid #e7ebf2d9;position:sticky;top:0}.nav-shell{justify-content:space-between;align-items:center;width:min(1180px,100% - 40px);height:68px;margin:0 auto;display:flex}.brand{align-items:center;gap:10px;font-size:18px;font-weight:800;text-decoration:none;display:inline-flex}.brand-mark{background:#fff;border-radius:9px;flex:0 0 36px;width:36px;height:36px;display:block;overflow:hidden;box-shadow:0 8px 18px #1664ff3d}.brand-mark img{width:100%;height:100%;display:block}.nav-menu{align-items:center;gap:28px;display:flex}.nav-menu a{color:#596275;font-size:14px;font-weight:600;text-decoration:none}.nav-menu a:hover,.nav-menu a.active{color:var(--blue)}.nav-menu .nav-cta{color:#fff;background:var(--blue);border-radius:9px;padding:9px 18px}.nav-dropdown{position:relative}.nav-dropdown-trigger{color:#596275;height:68px;font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;gap:7px;padding:0;font-size:14px;font-weight:600;display:inline-flex}.nav-dropdown-trigger svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7px;width:10px;transition:transform .18s}.nav-dropdown:hover .nav-dropdown-trigger,.nav-dropdown:focus-within .nav-dropdown-trigger,.nav-dropdown.active .nav-dropdown-trigger{color:var(--blue)}.nav-dropdown-panel{z-index:70;visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid #e1e6ef;border-radius:14px;width:370px;padding:8px;transition:opacity .18s,transform .18s,visibility .18s;position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%,-8px);box-shadow:0 22px 60px #17203329}.nav-dropdown-panel:before{content:"";width:100%;height:14px;position:absolute;top:-12px;left:0}.nav-dropdown.is-open .nav-dropdown-panel,.nav-dropdown:focus-within .nav-dropdown-panel{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%)}.nav-dropdown.is-open .nav-dropdown-trigger svg,.nav-dropdown:focus-within .nav-dropdown-trigger svg{transform:rotate(180deg)}.nav-dropdown-links{padding:0}.nav-menu .nav-dropdown-links>a{min-height:48px;color:var(--text);border-radius:8px;grid-template-columns:29px 1fr 18px;align-items:center;gap:8px;padding:6px 10px;transition:background .16s,color .16s;display:grid}.nav-menu .nav-dropdown-links>a:hover,.nav-menu .nav-dropdown-links>a.active{color:var(--blue);background:#f3f7ff}.nav-dropdown-number{color:#9aa4b5;font-size:11px;font-weight:800}.nav-dropdown-copy{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.nav-dropdown-copy strong{font-size:14px}.nav-dropdown-copy small{color:#98a1b1;font-size:11px;font-weight:600}.nav-dropdown-arrow{color:#aeb7c5;text-align:right;font-size:13px}.menu-button{display:none}@media (width>=901px){.nav-dropdown:hover .nav-dropdown-panel{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%)}.nav-dropdown:hover .nav-dropdown-trigger svg{transform:rotate(180deg)}}.shell{width:min(1180px,100% - 40px);margin:0 auto}.section{padding:92px 0}.section-soft{background:var(--bg-soft)}.section-heading{margin-bottom:36px}.section-heading.row{justify-content:space-between;align-items:end;gap:24px;display:flex}.agent-library{padding:72px 0 92px}.agent-library-group+.agent-library-group{margin-top:76px}.agent-library .section-heading{border-bottom:1px solid var(--line);margin-bottom:28px;padding-bottom:18px}.agent-library .section-heading h2{margin:0;font-size:clamp(26px,3vw,34px)}.agent-library .content-grid{grid-template-columns:repeat(3,minmax(0,320px));gap:18px}.agent-product-card{border:1px solid var(--line);color:var(--text);background:#fff;border-radius:16px;flex-direction:column;padding:24px;text-decoration:none;transition:all .2s;display:flex}.agent-product-card:hover{box-shadow:var(--shadow);border-color:#cbd7ec;transform:translateY(-3px)}.agent-product-card:focus-visible{outline-offset:3px;outline:3px solid #1664ff38}.agent-product-card h3{margin-bottom:10px;font-size:19px}.agent-product-card p{min-height:72px;color:var(--text-soft);margin-bottom:20px;font-size:14px;line-height:1.7}.agent-product-card .text-link{align-self:flex-end;margin-top:auto}.eyebrow{color:var(--blue);letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px;font-size:13px;font-weight:800}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.04em;font-size:clamp(40px,6vw,68px);line-height:1.14}h2{letter-spacing:-.025em;margin-bottom:12px;font-size:clamp(28px,4vw,42px);line-height:1.25}h3{line-height:1.4}.lead{max-width:720px;color:var(--text-soft);font-size:18px}.hero{background:radial-gradient(circle at 82% 22%,#7759ff29,#0000 34%),radial-gradient(circle at 12% 78%,#1664ff1f,#0000 35%),linear-gradient(135deg,#f8fbff 0%,#f2f5ff 55%,#faf8ff 100%);align-items:center;min-height:560px;padding:56px 0;display:grid;overflow:hidden}.hero-grid{grid-template-columns:1fr;align-items:center;display:grid}.hero-copy{text-align:center;width:100%;max-width:1040px;margin:0 auto}.hero h1 em{color:var(--blue);font-style:normal}.hero-copy>p{max-width:760px;color:var(--text-soft);margin-left:auto;margin-right:auto;font-size:19px}.button{border:1px solid var(--line);min-height:46px;color:var(--text);background:#fff;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:0 24px;font-weight:700;text-decoration:none;transition:all .2s;display:inline-flex}.button:hover{transform:translateY(-2px);box-shadow:0 10px 24px #1e36601a}.button.primary{color:#fff;border-color:var(--blue);background:var(--blue)}.button.primary:hover{background:var(--blue-dark)}.content-grid,.case-grid{gap:22px;display:grid}.module-description{color:var(--text-soft);margin:0;font-size:16px}.content-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.content-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .22s;overflow:hidden}.content-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.content-card.preview-card:hover{box-shadow:none;transform:none}.card-visual{color:#fff;background:radial-gradient(circle at 80% 18%, #ffffff47, transparent 30%), linear-gradient(135deg, var(--card-accent), color-mix(in srgb, var(--card-accent), #111 24%));justify-content:space-between;align-items:flex-start;min-height:152px;padding:24px;text-decoration:none;display:flex}.card-visual span{letter-spacing:.08em;max-width:70%;font-size:13px;font-weight:800}.card-visual small{background:#ffffff24;border:1px solid #ffffff59;border-radius:999px;padding:5px 10px}.card-body{padding:24px}.card-body h3{margin-bottom:10px;font-size:21px}.card-body h3 a{text-decoration:none}.card-body>p{min-height:82px;color:var(--text-soft)}.card-meta{margin-bottom:6px;font-size:13px;font-weight:700;min-height:0!important;color:var(--blue)!important}.tag-row{flex-wrap:wrap;gap:7px;min-height:31px;margin:18px 0;display:flex}.tag-row span{color:#526075;background:#f2f4f8;border-radius:999px;padding:5px 9px;font-size:12px}.text-link{color:var(--blue);gap:8px;font-weight:800;text-decoration:none;display:inline-flex}.tools-directory-section{padding-top:54px}.tool-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.tool-card{border:1px solid var(--line);border-radius:var(--radius);min-width:0;height:150px;color:var(--text);background:radial-gradient(circle at 92% 8%,#1664ff1a,#0000 30%),#fff;padding:18px 20px;text-decoration:none;transition:all .22s;display:block}.tool-card:hover{box-shadow:var(--shadow);border-color:#cbd7ec;transform:translateY(-4px)}.tool-card h2,.tool-card h3{margin:0 0 7px;font-size:18px;line-height:1.4}.tool-card p{color:var(--text-soft);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:0;font-size:14px;line-height:1.6;display:-webkit-box;overflow:hidden}.service-catalog{gap:44px;display:grid}.service-group-section,.service-card-grid{gap:18px;display:grid}.service-card-grid.is-enterprise,.service-card-grid.is-personal{grid-template-columns:repeat(3,minmax(0,1fr))}.service-card{border:1px solid var(--line);min-width:0;min-height:350px;color:inherit;background:radial-gradient(circle at 92% 8%,#7759ff17,#0000 28%),#fff;border-radius:19px;flex-direction:column;padding:24px;text-decoration:none;transition:all .2s;display:flex;box-shadow:0 8px 24px #182b4e0f}.service-card:hover{box-shadow:var(--shadow);border-color:#cbd7ec;transform:translateY(-3px)}.service-card-top{justify-content:space-between;align-items:flex-start;gap:18px;min-height:54px;display:flex}.service-card-phase{color:var(--text-soft);text-align:right;flex:none;padding-top:4px;font-size:12px;font-weight:750}.service-card h3{max-width:68%;margin:0;font-size:20px;line-height:1.38}.service-card-description{min-height:49px;color:var(--text-soft);text-overflow:ellipsis;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:8px 0 0;font-size:14px;line-height:1.75;display:-webkit-box;overflow:hidden}.service-card-audience{border-left:2px solid #1664ff80;margin-top:14px;padding-left:11px}.service-card-audience span{color:var(--text-soft);font-size:11px;font-weight:750;display:block}.service-card-audience strong{margin-top:3px;font-size:13px;line-height:1.55;display:block}.service-card-outcomes{flex-wrap:wrap;gap:6px;margin:14px 0 17px;display:flex}.service-card-outcomes span{color:#526075;background:#f2f5fa;border-radius:999px;padding:5px 8px;font-size:11px}.service-card-price{border-top:1px solid var(--line);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;margin-top:auto;padding-top:17px;display:grid}.service-card-price span{color:var(--text-soft);font-size:12px}.service-card-price strong{color:var(--blue);text-align:center;white-space:nowrap;font-size:15px}.service-card-price .service-card-link{color:var(--blue);white-space:nowrap;justify-content:flex-end;align-items:center;gap:6px;font-size:12px;font-weight:750;display:flex}.service-card-link i{font-size:15px;font-style:normal;transition:transform .18s}.service-card:hover .service-card-link i{transform:translate(3px)}.service-detail-hero{background:linear-gradient(135deg,#f8fbff,#f5f2ff);padding:92px 0 76px}.service-detail-hero-grid{grid-template-columns:minmax(0,1.45fr) minmax(310px,.55fr);align-items:center;gap:70px;display:grid}.service-detail-hero h1{max-width:820px;margin:13px 0 20px;font-size:clamp(40px,5vw,64px);line-height:1.15}.service-detail-lead{max-width:760px;color:var(--text-soft);margin:0;font-size:18px;line-height:1.85}.service-detail-actions{flex-wrap:wrap;gap:12px;margin-top:32px;display:flex}.service-detail-summary{background:#ffffffd9;border:1px solid #1664ff21;border-radius:20px;padding:28px;box-shadow:0 16px 45px #182b4e14}.service-detail-summary div+div{border-top:1px solid var(--line);margin-top:20px;padding-top:20px}.service-detail-summary span{color:var(--text-soft);letter-spacing:.08em;margin-bottom:7px;font-size:11px;font-weight:800;display:block}.service-detail-summary strong{font-size:15px;line-height:1.65;display:block}.service-detail-summary .price{color:var(--blue);font-size:21px}.service-detail-summary p{color:#596275;margin:0;font-size:13px;line-height:1.7}.service-detail-main{background:#fff;padding:80px 0 110px}.service-detail-body{max-width:1120px}.service-detail-section{border-bottom:1px solid var(--line);padding:65px 0}.service-detail-section:first-child{padding-top:0}.service-detail-section.service-check-section{padding-bottom:0}.service-detail-heading{align-items:flex-start;gap:17px;margin-bottom:30px;display:flex}.service-detail-heading>span{width:40px;height:40px;color:var(--blue);background:#1664ff17;border-radius:12px;flex:0 0 40px;place-items:center;font-size:11px;font-weight:850;display:grid}.service-detail-heading p{color:#9aa4b5;letter-spacing:.12em;margin:0 0 3px;font-size:10px;font-weight:800}.service-detail-heading h2{margin:0;font-size:27px}.service-problem-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.service-problem-grid article{border:1px solid var(--line);background:#fbfcff;border-radius:15px;gap:12px;padding:22px;display:flex}.service-problem-grid i{color:var(--blue);font-style:normal;font-weight:850}.service-problem-grid p{color:#4f596b;margin:0;font-size:14px;line-height:1.75}.service-deliverable-grid{grid-template-columns:repeat(2,1fr);gap:15px;display:grid}.service-deliverable-grid article{border:1px solid var(--line);border-radius:16px;padding:26px}.service-deliverable-grid small{color:var(--blue);font-weight:800}.service-deliverable-grid h3{margin:13px 0 8px;font-size:18px}.service-deliverable-grid p{color:var(--text-soft);margin:0;font-size:14px;line-height:1.75}.service-process-list{grid-template-columns:repeat(4,1fr);margin:0;padding:0;list-style:none;display:grid}.service-process-list li{border-left:1px solid var(--line);min-width:0;padding:0 24px}.service-process-list li:first-child{border-left:0;padding-left:0}.service-process-list li>span{color:var(--blue);font-size:12px;font-weight:850}.service-process-list h3{margin:12px 0 8px;font-size:17px}.service-process-list p{color:var(--text-soft);margin:0;font-size:13px;line-height:1.7}.service-detail-two-columns{border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;gap:60px;display:grid}.service-detail-section.compact{border:0}.service-check-list{margin:0;padding:0;list-style:none}.service-check-list li{color:#4f596b;border-bottom:1px solid #edf0f4;padding:14px 0 14px 24px;font-size:14px;line-height:1.7;position:relative}.service-check-list li:before{content:"";background:var(--blue);border-radius:50%;width:7px;height:7px;position:absolute;top:24px;left:2px}.service-boundary{color:#fff;background:linear-gradient(135deg,#164fdb,#674bff);border-radius:20px;grid-template-columns:280px 1fr;align-items:center;gap:50px;margin-top:64px;padding:34px;display:grid}.service-boundary .eyebrow{color:#ffffffb3}.service-boundary h2{margin:8px 0 0;font-size:27px}.service-boundary>p{color:#ffffffdb;margin:0;font-size:14px;line-height:1.85}.service-detail-cta{text-align:center;max-width:700px;margin:100px auto 0}.service-detail-cta h2{margin:12px 0;font-size:34px}.service-detail-cta>p:not(.eyebrow){color:var(--text-soft);margin:0 auto 25px;line-height:1.8}.service-detail-wechat{border:1px solid var(--line);text-align:left;background:#fbfcff;border-radius:18px;align-items:center;gap:22px;width:fit-content;margin:30px auto 0;padding:20px 26px 20px 20px;display:flex}.service-detail-wechat img{border-radius:10px;width:150px;height:150px;display:block}.service-detail-wechat span,.service-detail-wechat small{color:var(--text-soft);font-size:12px;display:block}.service-detail-wechat strong{color:var(--text);margin:8px 0;font-size:20px;display:block}.case-card p{color:var(--text-soft)}.case-grid{grid-template-columns:repeat(2,1fr)}.case-card{border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(145deg,#fff,#f8faff);padding:30px}.case-label{color:var(--purple);font-size:13px;font-weight:800}.case-category-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:18px;display:grid}.case-category{border:1px solid var(--line);background:#fff;border-radius:19px;min-width:0;overflow:hidden;box-shadow:0 8px 24px #182b4e0d}.case-category-head{background:linear-gradient(145deg,#f7faff,#f7f4ff);min-height:155px;padding:27px}.case-category-head h3{margin:0 0 10px;font-size:22px}.case-category-head p{color:var(--text-soft);margin:0;font-size:13px;line-height:1.75}.case-category-list{padding:0 26px}.case-entry{border-bottom:1px solid var(--line);padding:24px 0}.case-entry:last-child{border-bottom:0}.case-entry-tags{flex-wrap:wrap;gap:6px;display:flex}.case-entry-tags span{color:#59667a;background:#f1f4f9;border-radius:999px;padding:4px 7px;font-size:10px;font-weight:700}.case-entry h4{margin:12px 0 8px;font-size:17px;line-height:1.45}.case-entry>p{color:var(--text-soft);margin:0;font-size:13px;line-height:1.7}.case-entry>a,.case-entry-note{color:var(--blue);align-items:center;gap:7px;margin-top:15px;font-size:12px;font-weight:750;text-decoration:none;display:inline-flex}.case-entry>a i{font-style:normal;transition:transform .18s}.case-entry>a:hover i{transform:translate(3px)}.case-entry-note{color:#a1a9b7}.case-detail-hero{background:linear-gradient(135deg,#f8fbff,#f5f2ff);padding:92px 0 72px}.case-detail-hero-inner{text-align:center;max-width:930px}.case-detail-tags{justify-content:center;gap:8px;display:flex}.case-detail-tags span{color:var(--blue);background:#1664ff17;border-radius:999px;padding:6px 10px;font-size:11px;font-weight:800}.case-detail-hero h1{margin:18px 0;font-size:clamp(40px,5vw,62px)}.case-detail-hero p{max-width:760px;color:var(--text-soft);margin:0 auto;font-size:18px;line-height:1.8}.case-detail-main{padding:80px 0 110px}.case-detail-shell{max-width:1080px}.case-context{max-width:850px}.case-context h2{margin:12px 0 0;font-size:27px;line-height:1.55}.case-result-grid{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(170px,1fr));margin:50px 0 68px;display:grid}.case-result-grid article{border-left:1px solid var(--line);padding:28px 24px}.case-result-grid article:first-child{border-left:0}.case-result-grid strong{color:var(--blue);font-size:28px;display:block}.case-result-grid span{color:var(--text-soft);margin-top:6px;font-size:12px;display:block}.case-detail-columns{grid-template-columns:1fr 1fr;gap:70px;display:grid}.case-detail-columns section{padding:34px 0}.case-detail-columns ul{margin:20px 0 0;padding:0;list-style:none}.case-detail-columns li{color:#4f596b;border-bottom:1px solid #edf0f4;padding:13px 0 13px 23px;font-size:14px;line-height:1.7;position:relative}.case-detail-columns li:before{content:"";background:var(--blue);border-radius:50%;width:7px;height:7px;position:absolute;top:23px;left:2px}.case-deliverables,.case-gallery{border-top:1px solid var(--line);margin-top:70px;padding-top:65px}.case-deliverables h2,.case-gallery h2{margin:9px 0 28px;font-size:28px}.case-deliverables>div{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.case-deliverables article{border:1px solid var(--line);border-radius:13px;align-items:center;gap:14px;padding:18px 20px;display:flex}.case-deliverables article span{color:var(--blue);font-size:11px;font-weight:850}.case-deliverables article p{color:#4f596b;margin:0;font-size:14px}.case-gallery>div{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}.case-gallery figure{border:1px solid var(--line);background:#f7f8fb;border-radius:15px;margin:0;overflow:hidden}.case-gallery figure:first-child{grid-column:1/-1}.case-gallery img{aspect-ratio:4/3;object-fit:cover;width:100%;display:block}.case-gallery figcaption{color:var(--text-soft);padding:10px 13px;font-size:11px}.case-insight{border:0;border-left:4px solid var(--blue);background:#f6f9ff;margin:70px 0 0;padding:30px 34px}.case-insight strong{margin-top:10px;font-size:20px;line-height:1.7;display:block}.case-detail-cta{text-align:center;max-width:700px;margin:95px auto 0}.case-detail-cta h2{margin:0 0 12px;font-size:33px}.case-detail-cta p{color:var(--text-soft);margin:0 auto 25px;line-height:1.8}.learning-study-page{background:#f8f9fb;border-top:1px solid #edf0f4;min-height:100vh}.learning-study-layout{grid-template-columns:230px minmax(0,820px);justify-content:space-between;align-items:start;gap:72px;padding:48px 0 104px;display:grid}.learning-study-sidebar{border-right:1px solid #dde2e9;padding-right:28px;position:sticky;top:96px}.learning-study-identity{border-bottom:1px solid #dde2e9;padding-bottom:24px}.learning-study-identity>span{color:var(--learning-accent);letter-spacing:.08em;font-size:11px;font-weight:800}.learning-study-identity h2{letter-spacing:-.02em;margin:9px 0 5px;font-size:20px}.learning-study-identity p{color:#7b8595;margin:0;font-size:12px;line-height:1.65}.learning-study-nav{border-bottom:1px solid #dde2e9;padding:25px 0}.learning-study-nav p,.learning-study-audience>span{color:#9aa3b2;letter-spacing:.1em;margin:0 0 10px;font-size:10px;font-weight:800}.learning-study-nav a{color:#667085;border-left:2px solid #0000;margin-left:-13px;padding:7px 12px;font-size:13px;font-weight:650;text-decoration:none;display:block}.learning-study-nav a:hover,.learning-study-nav a.active{color:var(--learning-accent);border-left-color:var(--learning-accent)}.learning-study-audience{padding-top:22px}.learning-study-audience>span{display:block}.learning-study-audience strong{font-size:12px;line-height:1.65;display:block}.learning-study-main{min-width:0}.learning-breadcrumb{color:#8c95a3;align-items:center;gap:9px;margin-bottom:34px;font-size:12px;display:flex}.learning-breadcrumb a{color:#667085;text-decoration:none}.learning-breadcrumb a:hover{color:var(--learning-accent)}.learning-course-header{border-bottom:1px solid #dfe4eb;padding-bottom:54px;scroll-margin-top:100px}.learning-course-type{color:var(--learning-accent);letter-spacing:.08em;margin:0 0 13px;font-size:12px;font-weight:800}.learning-course-header h1{margin-bottom:17px;font-size:46px}.learning-course-intro{color:#667085;max-width:740px;margin-bottom:34px;font-size:17px;line-height:1.85}.learning-course-meta{border-top:1px solid #dfe4eb;border-bottom:1px solid #dfe4eb;grid-template-columns:1fr 1fr 1.35fr;margin:0;padding:20px 0;display:grid}.learning-course-meta>div{border-left:1px solid #dfe4eb;padding:0 20px}.learning-course-meta>div:first-child{border-left:0;padding-left:0}.learning-course-meta dt{color:#98a1af;margin-bottom:4px;font-size:10px;font-weight:800}.learning-course-meta dd{margin:0;font-size:12px;font-weight:700;line-height:1.6}.learning-course-start{color:#fff;background:var(--learning-accent);border-radius:6px;align-items:center;gap:28px;min-height:43px;margin-top:26px;padding:0 18px;font-size:13px;font-weight:750;text-decoration:none;display:inline-flex}.learning-study-section{padding-top:66px;scroll-margin-top:86px}.learning-study-section-heading{grid-template-columns:34px 1fr;align-items:start;gap:16px;margin-bottom:28px;display:grid}.learning-study-section-heading>span{color:var(--learning-accent);padding-top:5px;font-size:11px;font-weight:850}.learning-study-section-heading h2{margin:0 0 5px;font-size:28px}.learning-study-section-heading p{color:#7a8494;margin:0;font-size:13px}.learning-path-list{margin:0;padding:0;list-style:none}.learning-path-list li{grid-template-columns:40px 1fr;gap:18px;min-height:103px;padding:0 0 24px;display:grid;position:relative}.learning-path-list li>span{z-index:1;width:40px;height:40px;color:var(--learning-accent);background:#f8f9fb;border:1px solid #cbd3df;border-radius:50%;place-items:center;font-size:11px;font-weight:850;display:grid}.learning-path-list li>i{background:#d6dce5;width:1px;position:absolute;top:40px;bottom:0;left:20px}.learning-path-list strong{margin:1px 0 4px;font-size:16px;display:block}.learning-path-list p{color:#7a8494;max-width:650px;margin:0;font-size:13px}.learning-chapter-list{border-top:1px solid #d8dee7}.learning-chapter{border-bottom:1px solid #d8dee7}.learning-chapter summary{cursor:pointer;grid-template-columns:38px minmax(0,1fr) 120px 18px;align-items:center;gap:13px;min-height:92px;padding:17px 2px;list-style:none;display:grid}.learning-chapter summary::-webkit-details-marker{display:none}.learning-chapter-number{color:var(--learning-accent);font-size:12px;font-weight:850}.learning-chapter-title{min-width:0}.learning-chapter-title strong{margin-bottom:3px;font-size:16px;display:block}.learning-chapter-title small{color:#858f9e;font-size:12px;font-weight:500;display:block}.learning-chapter-meta{color:#8b94a2;text-align:right;font-size:11px}.learning-chapter-toggle{color:#7f8997;text-align:center;font-size:21px;font-weight:300;transition:transform .18s}.learning-chapter[open] .learning-chapter-toggle{transform:rotate(45deg)}.learning-chapter ol{border-top:1px solid #e7eaf0;margin:0 0 16px 51px;padding:0;list-style:none}.learning-chapter li{border-bottom:1px solid #e7eaf0;grid-template-columns:52px minmax(0,1fr) 72px;align-items:center;gap:12px;min-height:50px;padding:10px 3px;display:grid}.learning-chapter li:last-child{border-bottom:0}.learning-chapter li>span{color:#9ba4b2;font-size:10px;font-weight:750}.learning-chapter li>strong{font-size:13px}.learning-chapter li>small{color:#9aa3b1;text-align:right;font-size:10px}.learning-related-list{border-top:1px solid #d8dee7}.learning-related-list a{min-height:65px;color:var(--text);border-bottom:1px solid #d8dee7;grid-template-columns:55px minmax(0,1fr) 90px;align-items:center;gap:14px;padding:12px 2px;text-decoration:none;display:grid}.learning-related-list a>span{color:var(--learning-accent);font-size:11px;font-weight:800}.learning-related-list a>strong{font-size:14px}.learning-related-list a>i{color:#7e8897;text-align:right;font-size:11px;font-style:normal}.learning-related-list a:hover strong,.learning-related-list a:hover i{color:var(--learning-accent)}.foundation-module-page{--foundation-blue:#1748e8;--foundation-navy:#17254d;--foundation-paper:#eef3fb;color:var(--foundation-navy)}.learning-primary-module-page .foundation-cover:after{content:var(--cover-mark)}.foundation-cover{color:#fff;background:var(--foundation-blue);height:calc(100vh - 68px);min-height:620px;max-height:820px;position:relative;overflow:hidden}.foundation-cover-grid{opacity:.22;background-image:linear-gradient(#ffffff2e 1px,#0000 1px),linear-gradient(90deg,#ffffff2e 1px,#0000 1px);background-size:48px 48px;position:absolute;inset:0;mask-image:linear-gradient(#000,#00000040)}.foundation-cover:after{content:"AI / 01";color:#fff1;letter-spacing:-.08em;pointer-events:none;font-size:clamp(140px,24vw,330px);font-weight:850;line-height:1;position:absolute;bottom:-72px;right:-22px}.foundation-cover-inner{z-index:1;grid-template-rows:1fr auto;height:100%;padding:30px 0 32px;display:grid;position:relative}.foundation-cover-bottom{letter-spacing:.14em;border-top:1px solid #ffffff59;justify-content:center;align-items:center;gap:24px;padding-top:18px;font-size:11px;font-weight:750;display:flex}.foundation-cover-bottom span+span:before{content:"·";color:#ffffff8c;margin-right:24px}.foundation-cover-copy{text-align:center;align-self:center;width:100%;max-width:none;padding:42px 0}.foundation-cover-copy>p:first-child{letter-spacing:.1em;margin-bottom:14px;font-size:13px;font-weight:700}.foundation-cover-copy h1{color:#fff;letter-spacing:-.06em;margin-bottom:23px;font-size:clamp(56px,8vw,96px);line-height:1.02}.foundation-cover-lead{color:#ffffffc2;max-width:720px;margin-left:auto;margin-right:auto;font-size:17px;line-height:1.9}.foundation-cover-actions{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:34px;display:flex}.foundation-cover-button{min-height:46px;color:inherit;border:1px solid;border-radius:3px;justify-content:center;align-items:center;padding:0 22px;font-size:13px;font-weight:750;text-decoration:none;transition:transform .18s,background .18s,color .18s;display:inline-flex}.foundation-cover-button.primary{color:var(--foundation-blue);background:#fff;border-color:#fff}.foundation-cover-button:hover{transform:translateY(-2px)}.foundation-landing{background-color:var(--foundation-paper);background-image:linear-gradient(#17254d0e 1px,#0000 1px),linear-gradient(90deg,#17254d0e 1px,#0000 1px);background-size:48px 48px;padding:106px 24px 0}.foundation-landing-section{max-width:1080px;margin:0 auto;padding-bottom:112px}.foundation-section-index{justify-content:space-between;align-items:center;gap:20px;display:flex}.foundation-section-index>span{color:#fff;background:var(--foundation-blue);letter-spacing:.15em;padding:4px 10px;font-size:10px;font-weight:800}.foundation-section-index a{color:var(--foundation-navy);letter-spacing:.08em;font-size:11px;font-weight:750;text-decoration:none}.foundation-section-title{border-bottom:2px solid var(--foundation-navy);justify-content:space-between;align-items:flex-end;gap:32px;margin:16px 0 40px;padding-bottom:18px;display:flex}.foundation-section-title h2{max-width:620px;color:var(--foundation-navy);margin:0;font-size:clamp(30px,4vw,44px);line-height:1.15}.foundation-section-title p{color:#69748c;max-width:350px;margin:0;font-size:13px}.foundation-feature{border:1px solid var(--foundation-navy);min-height:190px;color:var(--foundation-navy);box-shadow:7px 7px 0 var(--foundation-navy);background:#fff;border-radius:3px;grid-template-columns:54px minmax(0,1fr) 120px;align-items:start;gap:26px;padding:28px 30px;text-decoration:none;transition:transform .18s,box-shadow .18s;display:grid}.foundation-feature:hover{box-shadow:9px 9px 0 var(--foundation-navy);transform:translate(-2px,-2px)}.foundation-feature-number{font-size:12px;font-weight:850}.foundation-feature p{color:var(--foundation-blue);letter-spacing:.12em;margin:0 0 12px;font-size:10px;font-weight:850}.foundation-feature h3{margin:0 0 8px;font-size:26px}.foundation-feature div>span{color:#717b90;font-size:13px}.foundation-feature-meta{color:#8a93a5;flex-direction:column;justify-content:space-between;align-items:flex-end;height:100%;font-size:11px;display:flex}.foundation-feature-meta strong{color:var(--foundation-blue)}.foundation-rule{background:repeating-linear-gradient(-45deg,#17254d52 0 1px,#0000 1px 6px);border-top:1px solid #17254d73;border-bottom:1px solid #17254d73;max-width:1080px;height:11px;margin:-16px auto 96px}.foundation-file-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;display:grid}.foundation-file{border:1px solid var(--foundation-navy);min-height:310px;color:var(--foundation-navy);box-shadow:6px 6px 0 var(--foundation-navy);background:#fff;border-radius:3px;flex-direction:column;padding:26px 28px;text-decoration:none;transition:transform .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden}.foundation-file:hover{box-shadow:8px 8px 0 var(--foundation-navy);transform:translate(-2px,-2px)}.foundation-file-top{letter-spacing:.12em;justify-content:space-between;gap:16px;font-size:10px;font-weight:800;display:flex}.foundation-file-top i{color:#8a93a5;font-style:normal}.foundation-file-line{background:var(--foundation-navy);height:2px;margin:12px 0 23px}.foundation-file>p{color:var(--foundation-blue);margin:0 0 7px;font-size:11px;font-weight:800}.foundation-file h3{margin:0 0 10px;font-size:24px}.foundation-file small{color:#747e91;max-width:410px;font-size:12px;line-height:1.75}.foundation-file>strong{color:var(--foundation-navy);justify-content:space-between;margin-top:auto;padding-top:25px;font-size:12px;display:flex}.foundation-file:hover>strong span{color:var(--foundation-blue);transform:translate(3px)}.foundation-landing-cta{color:#fff;background:var(--foundation-blue);text-align:center;margin:0 -24px;padding:100px 24px}.foundation-landing-cta>span{letter-spacing:.16em;font-size:10px;font-weight:800}.foundation-landing-cta h2{color:#fff;max-width:800px;margin:20px auto 32px;font-size:clamp(30px,4vw,48px)}.foundation-landing-cta>div{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.foundation-reader-page{color:#161a22;background:#fff}.foundation-reader-shell{width:min(856px,100% - 48px);margin:0 auto;padding:112px 0 140px}.foundation-reader-shell.foundation-article{width:min(760px,100% - 48px)}.foundation-reader-breadcrumb{color:#a3a8b1;flex-wrap:wrap;gap:8px;margin-bottom:28px;font-size:12px;display:flex}.foundation-reader-breadcrumb a{color:#7e8590;text-decoration:none}.foundation-reader-breadcrumb a:hover{color:var(--blue)}.foundation-toc-header{padding-bottom:72px}.foundation-toc-header>p{color:var(--blue);letter-spacing:.14em;margin:0 0 12px;font-size:11px;font-weight:800}.foundation-toc-header h1{margin-bottom:18px;font-size:54px}.foundation-toc-header>div{color:#8b919c;flex-direction:column;font-size:14px;display:flex}.foundation-toc-chapter{padding:66px 0 0;scroll-margin-top:84px}.foundation-toc-chapter+.foundation-toc-chapter{margin-top:22px}.foundation-toc-chapter-head{grid-template-columns:42px 1fr;gap:18px;margin-bottom:24px;display:grid}.foundation-toc-chapter-head>span{color:var(--blue);padding-top:4px;font-size:12px;font-weight:850}.foundation-toc-chapter-head p{color:#a0a6af;letter-spacing:.08em;margin:0 0 4px;font-size:11px;font-weight:750}.foundation-toc-chapter-head h2{margin:0 0 7px;font-size:30px}.foundation-toc-chapter-head small{color:#858c98;font-size:13px}.foundation-toc-list{border-top:1px solid #e0e3e8;margin:0;padding:0;list-style:none}.foundation-toc-list a,.foundation-toc-list .is-pending{color:#20242c;border-bottom:1px solid #e0e3e8;grid-template-columns:52px minmax(0,1fr) 150px 18px;align-items:center;gap:12px;min-height:56px;padding:10px 2px;text-decoration:none;display:grid}.foundation-toc-list a>span,.foundation-toc-list .is-pending>span{color:#a6acb5;font-size:11px;font-weight:700}.foundation-toc-list strong{font-size:14px}.foundation-toc-list small{color:#a0a6af;text-align:right;font-size:11px}.foundation-toc-list i{color:#a0a6af;text-align:right;font-size:12px;font-style:normal}.foundation-toc-list a:hover strong,.foundation-toc-list a:hover i{color:var(--blue)}.foundation-toc-list a.is-locked{color:#4c5360}.foundation-toc-list a.is-locked small{color:#6f5bd3;font-weight:750}.foundation-toc-list a.is-locked i{color:#6f5bd3;border:1px solid #a99bea;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:9px;display:inline-flex}.foundation-toc-list a.is-locked:hover{background:#faf9ff}.foundation-toc-list .is-pending strong{color:#858b95;font-weight:600}.foundation-readbar{z-index:100;pointer-events:none;height:2px;position:fixed;inset:0 0 auto}.foundation-readbar span{background:var(--blue);transform-origin:0;height:100%;display:block;transform:scaleX(0)}.foundation-article-header{margin-bottom:56px}.foundation-article-header>p{color:var(--blue);letter-spacing:.1em;margin:0 0 12px;font-size:11px;font-weight:800}.foundation-article-header h1{max-width:760px;margin-bottom:17px;font-size:clamp(40px,5vw,58px)}.foundation-article-header>div{color:#a0a6af;flex-wrap:wrap;gap:0;font-size:12px;display:flex}.foundation-article-header>div span+span:before{content:"·";margin:0 12px}.foundation-page-toc{border-left:2px solid #dbe3ff;gap:5px;margin-bottom:64px;padding:18px 20px;display:grid}.foundation-page-toc p{color:#a0a6af;letter-spacing:.1em;margin:0 0 4px;font-size:10px;font-weight:800}.foundation-page-toc a{color:#747c88;border-radius:5px;margin-left:-7px;padding:3px 7px;font-size:12px;line-height:1.55;text-decoration:none;transition:color .16s,background-color .16s}.foundation-page-toc a:hover,.foundation-page-toc a.current{color:var(--blue);background:#f2f5ff;font-weight:750}.foundation-prose h2{scroll-margin-top:116px}.foundation-prose{color:#111;text-align:justify;font-size:16px;line-height:1.9}.foundation-prose>*+*{margin-top:24px}.foundation-prose-lead{color:#353a44;font-size:20px;font-weight:500;line-height:1.8}.foundation-prose h2{color:#20242c;margin-top:70px;margin-bottom:0;scroll-margin-top:92px;font-size:20px;font-weight:750}.foundation-prose h3{color:#303640;margin-top:38px;margin-bottom:0;scroll-margin-top:92px;font-size:17px;font-weight:750}.foundation-prose strong{background:linear-gradient(#0000 68%,#4174ff2b 68%);font-weight:650}.foundation-prose a{color:var(--blue);text-underline-offset:3px}.foundation-prose ul,.foundation-prose ol{padding-left:1.4em}.foundation-prose li+li{margin-top:7px}.foundation-prose li::marker{color:#9299a5}.foundation-table-wrap{overflow-x:auto}.foundation-prose table{border-collapse:collapse;text-align:left;width:100%;font-size:13px;display:block;overflow-x:auto}.foundation-prose th{color:#646c79;border-bottom:1px solid #cfd4dc;padding:10px 12px;font-weight:700}.foundation-prose td{vertical-align:top;border-bottom:1px solid #e2e5ea;padding:12px}.foundation-prose blockquote{border:1px solid #dfe5f3;border-left:3px solid var(--blue);color:#252a33;background:#f8faff;margin-left:0;margin-right:0;padding:18px 22px}.foundation-prose blockquote p{margin:0}.foundation-prose p:has(>img:only-child){margin-top:38px;margin-bottom:8px}.foundation-prose p>img:only-child{background:#f5f7fa;border:1px solid #e1e5eb;border-radius:4px;width:100%;display:block}.foundation-prose p:has(>img:only-child)+p:has(>em:only-child){color:#8a919d;text-align:left;margin-top:0;font-size:12px;line-height:1.65}.foundation-note{border-top:1px solid #dfe3e9;border-bottom:1px solid #dfe3e9;grid-template-columns:70px 1fr;gap:14px;margin:30px 0;padding:18px 20px;display:grid}.foundation-note span{color:var(--blue);font-size:11px;font-weight:800}.foundation-note p{color:#5f6672;margin:0;font-size:14px}.foundation-article-next{border-top:1px solid #dfe3e9;margin-top:112px;padding-top:26px}.foundation-article-next>p{color:#a0a6af;margin:0 0 8px;font-size:11px}.foundation-article-next>span{color:#3e444e;font-size:26px;font-weight:650;display:block}.foundation-article-next>div{justify-content:space-between;align-items:center;gap:20px;margin-top:28px;display:flex}.foundation-article-next a{color:var(--blue);font-size:13px;font-weight:700;text-decoration:none}.foundation-article-next small{color:#a0a6af;font-size:11px}.foundation-locked-preview{padding-bottom:32px}.foundation-locked-preview>p{color:#596270;font-size:18px;line-height:1.85}.foundation-locked-preview>div{background:#f8f9fb;border:1px solid #e0e5ed;border-radius:14px;gap:12px;margin:32px 0;padding:24px;display:grid}.foundation-locked-preview>div strong{color:#252c37;margin-bottom:4px;font-size:13px}.foundation-locked-preview>div span{color:#717986;font-size:13px}.foundation-locked-preview>button{color:#fff;background:var(--blue);cursor:pointer;border:0;border-radius:9px;min-width:180px;padding:14px 24px;font-size:14px;font-weight:750}.foundation-modal-open{overflow:hidden}.foundation-paywall-modal{z-index:50;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.foundation-paywall-modal[hidden]{display:none}.foundation-paywall-mask{backdrop-filter:blur(2px);cursor:default;background:#10141ca3;border:0;width:100%;position:absolute;inset:0}.foundation-paywall{z-index:1;background:#fff;border:1px solid #ffffffb3;border-radius:22px;width:min(680px,100%);max-height:calc(100vh - 48px);padding:32px;position:relative;overflow:auto;box-shadow:0 28px 90px #00000052}.foundation-paywall-close{color:#8a919d;font-size:26px;line-height:1;text-decoration:none;position:absolute;top:14px;right:18px}.foundation-paywall-header{justify-content:space-between;align-items:center;gap:28px;padding-right:26px;display:flex}.foundation-paywall-header p{color:var(--blue);letter-spacing:.08em;margin:0 0 7px;font-size:11px;font-weight:800}.foundation-paywall-header h1{color:#1d2430;margin:0 0 7px;font-size:30px;line-height:1.2}.foundation-paywall-header span{color:#737b88;font-size:13px}.foundation-paywall-header>strong{color:#f05a24;flex:none;font-size:44px;line-height:1}.foundation-paywall-header>strong small{margin-right:3px;font-size:20px}.foundation-paywall-kicker{align-items:center;gap:10px;margin-bottom:24px;display:flex}.foundation-paywall-kicker span,.foundation-paywall-kicker i{letter-spacing:.08em;border-radius:999px;padding:6px 10px;font-size:10px;font-style:normal;font-weight:800}.foundation-paywall-kicker span{color:#fff;background:var(--blue)}.foundation-paywall-kicker i{color:#5f49c6;background:#f0edff}.foundation-paywall>h1{color:#1d2430;max-width:720px;margin-bottom:18px;font-size:clamp(40px,5vw,58px);line-height:1.15}.foundation-paywall-lead{color:#697180;max-width:650px;margin:0;font-size:16px;line-height:1.8}.foundation-paywall-panel{border:1px solid #d9deea;border-radius:14px;grid-template-columns:minmax(0,1.45fr) minmax(210px,.55fr);margin-top:26px;display:grid;overflow:hidden}.foundation-paywall-code{padding:24px}.foundation-paywall-code>p,.foundation-paywall-wechat p{color:var(--blue);letter-spacing:.08em;margin:0 0 7px;font-size:11px;font-weight:800}.foundation-paywall-code h2{margin:0 0 14px;font-size:18px}.foundation-paywall-code form>label{color:#545c69;margin-bottom:8px;font-size:12px;font-weight:700;display:block}.foundation-paywall-code form>div{grid-template-columns:minmax(0,1fr) auto;gap:10px;display:grid}.foundation-paywall-code input{color:#202631;min-width:0;font:inherit;letter-spacing:.08em;text-transform:uppercase;background:#fff;border:1px solid #cfd6e3;border-radius:8px;padding:13px 15px}.foundation-paywall-code input:focus{border-color:var(--blue);outline:3px solid #1664ff1a}.foundation-paywall-code button{color:#fff;background:var(--blue);cursor:pointer;border:0;border-radius:8px;padding:0 20px;font-size:13px;font-weight:750}.foundation-paywall-code form>small{color:#939aa6;margin-top:11px;font-size:11px;line-height:1.6;display:block}.foundation-paywall-code form>small.is-demo-message{color:#ad5f00}.foundation-paywall-wechat{text-align:center;background:#f5f7fb;flex-direction:column;justify-content:center;align-items:center;padding:20px 16px;display:flex}.foundation-paywall-wechat img{object-fit:cover;background:#fff;border:1px solid #dfe4ed;border-radius:8px;width:96px;height:96px;margin-bottom:10px;padding:5px}.foundation-paywall-wechat strong{color:#303743;font-size:14px;line-height:1.55;display:block}.foundation-paywall-wechat span{color:#858d99;margin-top:7px;font-size:11px;display:block}.foundation-paywall-meta{color:#757d89;border-top:1px solid #e0e4ea;border-bottom:1px solid #e0e4ea;flex-wrap:wrap;gap:12px 24px;margin-top:24px;padding:18px 20px;font-size:11px;display:flex}.foundation-paywall-meta span+span:before{content:"·";color:#bcc2cb;margin-right:24px}.foundation-paywall-back{color:var(--blue);margin-top:30px;font-size:13px;font-weight:700;text-decoration:none;display:inline-block}.foundation-book-rail a.locked:after{content:"访问码";color:#7564cc;margin-left:6px;font-size:9px;font-weight:700}.foundation-book-rail{display:none}.learning-footer{color:#7e8591;background:#fff;border-top:1px solid #e3e6eb}.learning-footer-inner{grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;min-height:92px;font-size:11px;display:grid}.learning-footer-inner>span:last-child{text-align:right}.learning-footer nav{gap:20px;display:flex}.learning-footer a{color:#656d7a;text-decoration:none}.learning-footer a:hover{color:var(--blue)}.role-module-page{--foundation-blue:#008b62;--foundation-navy:#173b34;--foundation-paper:#edf7f3}.role-module-page .foundation-cover:after{content:"AI / 03"}.role-group-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.role-group-file{min-height:270px}.enterprise-chapter-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.enterprise-chapter-file{min-height:270px}.role-reader-page{--blue:#008b62}.doubao-module-page{--foundation-blue:#6950e8;--foundation-navy:#28204c;--foundation-paper:#f2f0fb}.doubao-module-page .foundation-cover:after{content:"AI / 02"}.doubao-module-page .foundation-cover-bottom{justify-content:center;position:relative}.doubao-reader-page{--blue:#6950e8}.doubao-source-notice a{color:#5e43dc;text-underline-offset:3px;font-weight:750}.doubao-cover-source{color:#ffffff9e;letter-spacing:0;text-align:right;font-size:11px;font-weight:500;position:absolute;right:0}.doubao-cover-source a{color:#fff;text-underline-offset:3px;margin:0 3px;font-weight:700}.doubao-source-notice{color:#696377;background:#f6f4fd;border-left:3px solid #7961ec;margin:0 0 42px;padding:13px 16px;font-size:13px;line-height:1.7}.doubao-source-notice.is-bottom{margin:56px 0 0}.doubao-part-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.doubao-toc-group+.doubao-toc-group{margin-top:36px}.doubao-toc-group>h3{color:#6f687b;margin:0 0 10px;font-size:13px;font-weight:750}.foundation-reader-shell.doubao-toc-only{padding-top:56px}.doubao-toc-only .foundation-toc-chapter:first-child{padding-top:0}.foundation-reader-shell.role-toc-only{padding-top:56px}.role-toc-only .foundation-toc-chapter:first-child{padding-top:0}.workbuddy-module-page{--foundation-blue:#1767e8;--foundation-navy:#17335e;--foundation-paper:#edf4ff}.workbuddy-module-page .foundation-cover:after{content:"AI / WB"}.workbuddy-reader-page{--blue:#1767e8}.workbuddy-part-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.foundation-reader-shell.workbuddy-toc-only{padding-top:56px}.workbuddy-toc-only .foundation-toc-chapter:first-child{padding-top:0}.qianwen-module-page{--foundation-blue:#e86418;--foundation-navy:#542c18;--foundation-paper:#fff3eb}.qianwen-module-page .foundation-cover:after{content:"AI / QW"}.qianwen-reader-page{--blue:#d95b14}.qianwen-part-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.foundation-reader-shell.qianwen-toc-only{padding-top:56px}.qianwen-toc-only .foundation-toc-chapter:first-child{padding-top:0}.foundation-book-rail .doubao-rail-group-label{color:#746a9d;letter-spacing:.06em;padding-top:9px;font-size:12px;font-weight:800}.foundation-prose pre{color:#e8ecf6;text-align:left;background:#171a23;border:1px solid #dfe3eb;border-radius:4px;margin-left:0;margin-right:0;padding:18px 20px;font-size:13px;line-height:1.7;overflow-x:auto}.foundation-prose :not(pre)>code{background:#f0f2f6;border-radius:3px;padding:2px 5px;font-size:.9em}.foundation-video{margin:38px 0 10px}.foundation-video video{background:#111;border:1px solid #dfe3eb;border-radius:4px;width:100%;display:block}.foundation-video figcaption{color:#8a919d;margin-top:8px;font-size:12px;line-height:1.65}@media (width>=1220px){.foundation-article .foundation-page-toc{scrollbar-width:thin;border-left:1px solid #e0e3e8;width:200px;max-height:calc(100vh - 190px);margin:0;padding:0 6px 0 16px;position:fixed;top:150px;left:calc(50% + 390px);overflow-y:auto}.foundation-book-rail{z-index:15;width:220px;max-height:calc(100vh - 150px);padding-right:14px;display:block;position:fixed;top:126px;right:calc(50% + 390px);overflow-y:auto}.foundation-book-rail-home{color:#737b88;margin-bottom:16px;font-size:14px;font-weight:750;line-height:1.5;text-decoration:none;display:block}.foundation-book-rail details{border-top:1px solid #e1e4e9}.foundation-book-rail details:last-child{border-bottom:1px solid #e1e4e9}.foundation-book-rail summary{color:#4f5865;cursor:pointer;justify-content:space-between;gap:10px;padding:12px 0;font-size:13px;font-weight:750;line-height:1.5;list-style:none;display:flex}.foundation-book-rail summary::-webkit-details-marker{display:none}.foundation-book-rail summary i{color:#a4aab3;font-style:normal}.foundation-book-rail details>div{gap:3px;padding:0 0 12px 10px;display:grid}.foundation-book-rail details>div a,.foundation-book-rail details>div span{color:#858d99;padding:6px 8px;font-size:13px;line-height:1.6;text-decoration:none}.foundation-book-rail details>div a:hover,.foundation-book-rail details>div a.current{color:var(--blue);background:#f2f5ff}}@media (width>=1420px){.foundation-book-rail{width:260px;padding-right:18px;right:calc(50% + 420px)}.foundation-article .foundation-page-toc{width:220px;left:calc(50% + 420px)}}.learning-home-hero{background:radial-gradient(circle at 84% 22%,#7759ff2e,#0000 29%),radial-gradient(circle at 14% 82%,#00a8701c,#0000 31%),linear-gradient(135deg,#f8fbff,#f5f3ff 62%,#fbfdff);padding:92px 0 96px;overflow:hidden}.learning-home-copy{max-width:890px}.learning-home-copy h1{max-width:800px;margin-bottom:22px}.learning-home-copy h1 em{color:var(--blue);font-style:normal}.learning-home-copy .lead{max-width:790px}.learning-quick-starts{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:34px;display:grid}.learning-quick-starts a{background:#ffffffc7;border:1px solid #d4dceaeb;border-radius:11px;justify-content:space-between;align-items:center;padding:14px 17px;font-size:14px;font-weight:750;text-decoration:none;transition:all .2s;display:flex}.learning-quick-starts a span{color:var(--blue)}.learning-quick-starts a:hover{background:#fff;border-color:#c3d3ee;transform:translateY(-2px);box-shadow:0 10px 24px #1e366014}.learning-directory-section{padding-top:82px}.learning-module-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.learning-module-card{border:1px solid var(--line);min-height:360px;color:var(--text);background:radial-gradient(circle at 96% 5%, color-mix(in srgb, var(--learning-accent), transparent 84%), transparent 34%), #fff;border-radius:20px;flex-direction:column;padding:28px;text-decoration:none;transition:all .22s;display:flex;position:relative;overflow:hidden}.learning-module-card:before{content:"";background:var(--learning-accent);opacity:.85;width:4px;position:absolute;inset:0 auto 0 0}.learning-module-card:hover{box-shadow:var(--shadow);border-color:#ccd7e9;transform:translateY(-4px)}.learning-module-top{justify-content:space-between;align-items:center;gap:16px;display:flex}.learning-module-number{color:var(--learning-accent);letter-spacing:-.04em;font-size:30px;font-weight:850}.learning-module-eyebrow{color:var(--text-soft);font-size:12px;font-weight:750}.learning-module-card h2{margin:30px 0 10px;font-size:28px}.learning-module-card>p{max-width:670px;color:var(--text-soft)}.learning-module-tags{flex-wrap:wrap;gap:7px;margin:4px 0 22px;display:flex}.learning-module-tags span{color:#566176;background:#f2f5fa;border-radius:999px;padding:5px 9px;font-size:11px}.learning-module-audience{border-top:1px solid var(--line);gap:12px;margin-top:auto;padding-top:17px;font-size:12px;display:flex}.learning-module-audience span{color:var(--text-soft)}.learning-module-link{color:var(--learning-accent);justify-content:space-between;margin-top:16px;font-size:13px;font-weight:800;display:flex}.learning-principle-grid{grid-template-columns:.85fr 1.15fr;align-items:start;gap:80px;display:grid}.learning-principle-list{gap:10px;display:grid}.learning-principle-list>div{border:1px solid var(--line);background:#fff;border-radius:14px;grid-template-columns:46px 1fr;gap:14px;padding:20px;display:grid}.learning-principle-list span{color:var(--blue);font-size:13px;font-weight:850}.learning-principle-list p{color:var(--text-soft);margin:0}.learning-principle-list strong{color:var(--text);display:block}.learning-module-hero{background:radial-gradient(circle at 84% 22%, color-mix(in srgb, var(--learning-accent), transparent 84%), transparent 31%), linear-gradient(135deg, #f8fbff, #fafaff);padding:88px 0 78px}.learning-module-hero>.shell{text-align:center}.learning-module-hero .eyebrow{color:var(--learning-accent)}.learning-module-hero h1{margin-bottom:18px;font-size:clamp(40px,5vw,60px)}.learning-module-hero .lead{max-width:760px;margin-left:auto;margin-right:auto}.learning-outcome{border-top:2px solid var(--learning-accent);background:#ffffffa8;justify-content:center;gap:14px;max-width:700px;margin:28px auto 0;padding:14px 17px;display:flex}.learning-outcome span{color:var(--text-soft);font-size:12px}.learning-outcome strong{font-size:14px}.learning-stage-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.learning-stage-card{border:1px solid var(--line);background:#fff;border-radius:16px;min-height:240px;padding:22px}.learning-stage-card>span{color:var(--blue);font-size:13px;font-weight:850}.learning-stage-card h3{margin:34px 0 10px;font-size:19px}.learning-stage-card p{color:var(--text-soft);font-size:14px}.learning-list-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.learning-list-card{border:1px solid var(--line);min-height:210px;color:var(--text);background:#fff;border-radius:16px;padding:23px;text-decoration:none;display:block}.learning-list-card>span{color:var(--blue);font-size:11px;font-weight:800}.learning-list-card h3{margin:22px 0 8px;font-size:19px}.learning-list-card p{color:var(--text-soft);font-size:14px}.learning-product-grid,.learning-download-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.learning-download-card{border:1px solid var(--line);background:#fff;border-radius:18px;flex-direction:column;padding:28px;display:flex;box-shadow:0 8px 24px #182b4e0a}.learning-download-card-head{justify-content:space-between;align-items:center;gap:20px;display:flex}.learning-download-card-head span{color:var(--blue);font-size:12px;font-weight:850}.learning-download-card-head small{color:var(--text-soft);font-size:11px}.learning-download-card h2{margin:24px 0 12px;font-size:24px;line-height:1.35}.learning-download-card>p{color:var(--text-soft);flex:1;margin:0 0 26px;font-size:14px;line-height:1.8}.learning-download-actions{flex-wrap:wrap;gap:10px;display:flex}.learning-download-actions a,.download-detail-header>a{border:1px solid var(--blue);color:var(--blue);border-radius:10px;padding:10px 16px;font-size:13px;font-weight:800;text-decoration:none}.learning-download-actions a.primary,.download-detail-header>a{color:#fff;background:var(--blue)}.learning-download-actions a:hover,.download-detail-header>a:hover{transform:translateY(-1px)}.download-detail-page{background:#f7f9fd;padding:58px 0 90px}.download-detail-breadcrumb{color:var(--text-soft);gap:9px;margin-bottom:34px;font-size:13px;display:flex}.download-detail-breadcrumb a{color:var(--blue);text-decoration:none}.download-detail-header{justify-content:space-between;align-items:flex-end;gap:30px;display:flex}.download-detail-header p{color:var(--blue);letter-spacing:.1em;margin:0 0 10px;font-size:12px;font-weight:850}.download-detail-header h1{max-width:850px;margin:0 0 12px;font-size:clamp(34px,5vw,54px);line-height:1.15}.download-detail-header span{color:var(--text-soft);font-size:13px}.download-detail-description{max-width:900px;color:var(--text-soft);margin:28px 0 36px;font-size:15px;line-height:1.85}.download-pdf-preview{border:1px solid var(--line);background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 14px 38px #182b4e14}.download-pdf-preview iframe{border:0;width:100%;height:78vh;min-height:680px;display:block}.download-pdf-preview>p{color:var(--text-soft);text-align:center;margin:0;padding:14px 18px;font-size:12px}.download-pdf-preview>p a{color:var(--blue);margin:0 4px}.learning-product-card{border:1px solid var(--line);background:#fff;border-radius:18px;min-height:430px;padding:25px;box-shadow:0 8px 24px #182b4e0a}.learning-product-card.is-available{color:var(--text);text-decoration:none;transition:transform .2s,border-color .2s,box-shadow .2s}.learning-product-card.is-available:hover{border-color:#cfc6ff;transform:translateY(-3px);box-shadow:0 16px 36px #4836a01f}.learning-product-card h2{margin:30px 0 9px;font-size:27px}.learning-product-card>p{min-height:76px;color:var(--text-soft);font-size:14px}.learning-product-card ol{gap:8px;margin:24px 0 0;padding:0;list-style:none;display:grid}.learning-product-card li{border-top:1px solid var(--line);gap:12px;padding:9px 0;font-size:13px;font-weight:700;display:flex}.learning-product-card li span{color:var(--purple)}.learning-product-enter{color:var(--purple);margin-top:22px;font-size:13px;display:block}.learning-card-status{color:#6b54d4;background:#f0edff;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:750;display:inline-flex}.learning-callout{border:1px solid var(--line);background:#fff;border-radius:20px;justify-content:space-between;align-items:center;gap:40px;padding:36px;display:flex}.learning-callout h2{font-size:30px}.learning-callout p{max-width:780px;color:var(--text-soft);margin-bottom:0}.learning-callout .button{flex:none}.learning-role-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.learning-role-group{border:1px solid var(--line);background:#fff;border-radius:16px;padding:23px}.learning-role-group h3{margin:0 0 16px;font-size:18px}.learning-role-group>div{flex-wrap:wrap;gap:8px;display:flex}.learning-role-group span{color:#546174;background:#f2f5f9;border-radius:9px;padding:7px 10px;font-size:12px}.learning-task-structure,.learning-flow{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.learning-task-structure div,.learning-flow div{border:1px solid var(--line);background:#fff;border-radius:13px;flex-direction:column;justify-content:space-between;min-height:95px;padding:17px;display:flex}.learning-task-structure span,.learning-flow span{color:var(--green);font-size:11px;font-weight:800}.learning-task-structure strong,.learning-flow strong{font-size:14px}.learning-industry-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;display:grid}.learning-industry-grid article,.learning-industry-grid a{border:1px solid var(--line);background:#fff;border-radius:15px;min-height:165px;padding:19px}.learning-industry-grid a{color:var(--text);text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s;display:block}.learning-industry-grid a:hover{border-color:#f1b47d;transform:translateY(-3px);box-shadow:0 12px 28px #6d41141a}.learning-industry-grid article>span,.learning-industry-grid a>span{color:var(--orange);font-size:11px;font-weight:850}.learning-industry-grid h3{margin:22px 0 7px;font-size:16px}.learning-industry-grid p{color:var(--text-soft);font-size:12px}.learning-industry-grid strong{color:#d86819;margin-top:15px;font-size:12px;display:block}.industry-reader-page{--blue:#d86819}.enterprise-reader-page{--blue:#e34f7a}.job-prompt-reader-page{--blue:#8a5a44}.glossary-reader-page{--blue:#2f6f9f}.job-prompt-code{margin:28px 0;position:relative}.job-prompt-code .job-prompt-copy{z-index:2;color:#d8deea;font:inherit;cursor:pointer;opacity:0;background:#262a36eb;border:1px solid #ffffff2e;border-radius:6px;padding:6px 11px;font-size:12px;line-height:1.2;transition:opacity .16s,transform .16s,color .16s,background-color .16s;position:absolute;top:10px;right:10px;transform:translateY(-2px)}.job-prompt-code:hover .job-prompt-copy,.job-prompt-code .job-prompt-copy:focus-visible{opacity:1;transform:translateY(0)}.job-prompt-code .job-prompt-copy:hover{color:#fff;background:#383e4f}.job-prompt-code .job-prompt-copy.is-copied{color:#fff;background:#167d55}.job-prompt-code pre{margin:0;padding-top:48px}@media (hover:none){.job-prompt-code .job-prompt-copy{opacity:1;transform:none}}.learning-topic-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.learning-topic-grid article{border:1px solid var(--line);background:#fff;border-radius:14px;min-height:120px;padding:18px}.learning-topic-grid span{color:#e34f7a;font-size:11px;font-weight:850}.learning-topic-grid h3{margin:18px 0 0;font-size:15px}.learning-service-note{color:#fff;background:#111b31;border-radius:16px;justify-content:space-between;align-items:center;gap:28px;margin-top:28px;padding:24px;display:flex}.learning-service-note p{color:#b9c4d8;margin:4px 0 0;font-size:13px}.learning-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;display:grid}.learning-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;flex-direction:column;min-height:250px;padding:28px;display:flex;box-shadow:0 8px 24px #182b4e0d}.learning-type{color:var(--blue);letter-spacing:.08em;font-size:12px;font-weight:800}.learning-card h3{margin:18px 0 10px;font-size:22px}.learning-card p{color:var(--text-soft)}.learning-card .text-link{margin-top:auto}.page-hero{background:linear-gradient(135deg,#f7faff,#f5f2ff);padding:98px 0 70px}.page-hero h1{margin-bottom:18px;font-size:clamp(38px,5vw,58px)}.filters{flex-wrap:wrap;gap:9px;margin-top:24px;display:flex}.filters span{border:1px solid var(--line);color:var(--text-soft);background:#fff;border-radius:999px;padding:7px 12px;font-size:13px}.detail-hero{background:linear-gradient(135deg,#f8fbff,#f5f2ff);padding:86px 0 62px}.detail-hero-inner{text-align:center;max-width:940px;margin:0 auto}.detail-hero-inner .detail-summary{margin-left:auto;margin-right:auto}.detail-hero-inner .tag-row{justify-content:center}.detail-experience{min-width:190px;margin-top:30px}.detail-grid{grid-template-columns:1fr 330px;align-items:start;gap:58px;display:grid}.detail-hero h1{margin:12px 0 18px;font-size:clamp(38px,5vw,58px)}.detail-summary{max-width:760px;color:var(--text-soft);font-size:18px}.detail-aside{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);background:#ffffffd1;padding:25px}.detail-aside p{color:var(--text-soft);font-size:14px}.detail-aside .button{width:100%}.detail-content{padding:72px 0}.prose{max-width:780px;font-size:17px}.prose h2{margin:46px 0 16px;font-size:28px}.prose h3{margin:32px 0 12px;font-size:21px}.prose p,.prose li{color:#465268}.prose blockquote{border-left:4px solid var(--blue);background:var(--bg-soft);margin:28px 0;padding:18px 22px}.prose code{background:#eef2f8;border-radius:5px;padding:2px 6px}.feature-list,.lesson-list{gap:10px;margin:20px 0 0;padding:0;list-style:none;display:grid}.feature-list li,.lesson-list li{background:var(--bg-soft);color:#465268;border-radius:10px;padding:12px 14px}.lesson-list li{justify-content:space-between;align-items:center;display:flex}.empty-video{text-align:center;border-radius:var(--radius);color:var(--text-soft);background:var(--bg-soft);border:1px dashed #bdc8da;padding:42px 24px}.article-meta{color:var(--text-soft);flex-wrap:wrap;gap:16px;font-size:14px;display:flex}.site-footer{color:#c5cee0;background:#0d162b;padding:58px 0 22px}.footer-grid{grid-template-columns:2fr repeat(3,1fr);gap:50px;width:min(1180px,100% - 40px);margin:0 auto;display:grid}.footer-brand{color:#fff}.footer-grid p{max-width:360px;margin-top:18px}.footer-grid h3{color:#fff;font-size:15px}.footer-grid>div:not(:first-child){flex-direction:column;gap:8px;display:flex}.footer-grid a{color:#c5cee0;text-decoration:none}.footer-qrcode{object-fit:cover;border-radius:8px;width:112px;height:112px;margin-top:8px}.footer-bottom{border-top:1px solid #ffffff1a;width:min(1180px,100% - 40px);margin:44px auto 0;padding-top:18px;font-size:13px}@media (width<=900px){.menu-button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 12px;display:block}.nav-menu{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:14px;flex-direction:column;align-items:stretch;gap:13px;padding:18px;display:none;position:absolute;top:68px;left:20px;right:20px}.nav-menu.open{display:flex}.nav-dropdown{width:100%}.nav-dropdown-trigger{justify-content:space-between;width:100%;height:auto}.nav-dropdown-panel{visibility:visible;opacity:1;pointer-events:auto;width:100%;box-shadow:none;margin-top:10px;transition:none;display:none;position:static;transform:none}.nav-dropdown-panel:before{display:none}.nav-dropdown.is-open .nav-dropdown-panel,.nav-dropdown:focus-within .nav-dropdown-panel{display:block;transform:none}.learning-study-layout{grid-template-columns:1fr;gap:42px}.learning-study-sidebar{border-bottom:1px solid #dfe4eb;border-right:0;padding:0 0 24px;position:static}.learning-study-identity{max-width:420px}.learning-study-nav{border-bottom:0;flex-wrap:wrap;gap:6px;padding-bottom:0;display:flex}.learning-study-nav p{width:100%}.learning-study-nav a{border:1px solid #d9dfe8;border-radius:6px;margin:0;padding:6px 10px}.learning-study-nav a:hover,.learning-study-nav a.active{border-color:var(--learning-accent)}.learning-study-audience{display:none}.foundation-cover{height:auto;min-height:620px}.foundation-section-title{flex-direction:column;align-items:flex-start}.foundation-section-title p{max-width:620px}.foundation-feature{grid-template-columns:44px minmax(0,1fr)}.foundation-feature-meta{flex-direction:row;grid-column:2;align-items:center;height:auto}.doubao-part-grid,.workbuddy-part-grid,.qianwen-part-grid{grid-template-columns:1fr}.learning-footer-inner{grid-template-columns:1fr auto;padding:24px 0}.learning-footer nav{grid-area:2/1/auto/-1}.hero{min-height:auto;padding:76px 0}.hero-grid,.detail-grid{grid-template-columns:1fr;gap:38px}.content-grid,.learning-grid{grid-template-columns:repeat(2,1fr)}.agent-library .content-grid,.learning-stage-grid,.learning-task-structure,.learning-flow,.learning-product-grid,.learning-industry-grid,.learning-topic-grid,.learning-list-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-principle-grid{grid-template-columns:1fr;gap:34px}.tool-grid,.service-card-grid.is-enterprise,.service-card-grid.is-personal{grid-template-columns:repeat(2,minmax(0,1fr))}.service-detail-hero-grid{grid-template-columns:1fr;gap:36px}.service-detail-summary{max-width:620px}.service-process-list{grid-template-columns:repeat(2,1fr);gap:28px 0}.service-process-list li:nth-child(3){border-left:0;padding-left:0}.service-detail-two-columns{gap:30px}.service-boundary{grid-template-columns:220px 1fr;gap:30px}.case-category-grid{grid-template-columns:1fr}.case-category-head{min-height:0}.case-detail-columns{gap:36px}.detail-aside{max-width:520px}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=640px){.section{padding:68px 0}.content-grid,.case-grid,.learning-grid,.tool-grid,.footer-grid,.agent-library .content-grid{grid-template-columns:1fr}.service-detail-hero{padding:66px 0 54px}.service-detail-hero h1{font-size:38px}.service-detail-lead{font-size:16px}.service-detail-main{padding:58px 0 80px}.service-detail-section{padding:50px 0}.service-problem-grid,.service-deliverable-grid,.service-detail-two-columns{grid-template-columns:1fr}.service-detail-two-columns{gap:0}.service-process-list{grid-template-columns:1fr;gap:0}.service-process-list li,.service-process-list li:nth-child(3){border-left:0;border-bottom:1px solid var(--line);padding:20px 0}.service-boundary{grid-template-columns:1fr;gap:18px;margin-top:48px;padding:28px 24px}.service-detail-cta{margin-top:72px}.service-detail-cta h2{font-size:28px}.service-detail-wechat{text-align:center;flex-direction:column;padding:18px}.service-detail-wechat img{width:180px;height:180px}.service-card-price{gap:8px}.service-card-price strong{font-size:13px}.service-card-price .service-card-link{font-size:11px}.case-detail-hero{padding:66px 0 54px}.case-detail-hero h1{font-size:38px}.case-detail-hero p{font-size:16px}.case-detail-main{padding:58px 0 80px}.case-context h2{font-size:22px}.case-result-grid{grid-template-columns:repeat(2,1fr);margin:38px 0 48px}.case-result-grid article:nth-child(odd){border-left:0}.case-detail-columns,.case-deliverables>div,.case-gallery>div{grid-template-columns:1fr}.case-gallery figure:first-child{grid-column:auto}.case-deliverables,.case-gallery{margin-top:50px;padding-top:48px}.case-insight{margin-top:50px;padding:25px 23px}.case-detail-cta{margin-top:70px}.case-detail-cta h2{font-size:28px}.learning-home-hero,.learning-module-hero{padding-top:64px;padding-bottom:64px}.learning-study-layout{gap:32px;padding-top:28px;padding-bottom:72px}.learning-breadcrumb{margin-bottom:24px}.learning-course-header h1{font-size:36px}.learning-course-intro{font-size:15px}.learning-course-meta{grid-template-columns:1fr;padding:6px 0}.learning-course-meta>div,.learning-course-meta>div:first-child{border:0;border-bottom:1px solid #e3e7ed;padding:12px 0}.learning-course-meta>div:last-child{border-bottom:0}.learning-study-section{padding-top:52px}.learning-study-section-heading h2{font-size:24px}.learning-chapter summary{grid-template-columns:30px minmax(0,1fr) 18px}.learning-chapter-meta{display:none}.learning-chapter-title small{margin-top:5px;line-height:1.55}.learning-chapter ol{margin-left:0}.learning-chapter li{grid-template-columns:45px minmax(0,1fr)}.learning-chapter li>small{display:none}.learning-related-list a{grid-template-columns:44px minmax(0,1fr)}.learning-related-list a>i{display:none}.foundation-cover{min-height:590px}.foundation-cover-inner{padding-top:20px;padding-bottom:22px}.foundation-cover-copy h1{font-size:54px}.foundation-cover-lead{font-size:15px}.foundation-cover-bottom{letter-spacing:.05em;flex-wrap:wrap;row-gap:4px}.foundation-cover-bottom span:nth-of-type(3){width:100%}.foundation-cover-bottom span:nth-of-type(3):before{display:none}.doubao-cover-source{text-align:left;width:100%;margin-top:8px;position:static}.foundation-landing{padding:72px 16px 0}.foundation-landing-section{padding-bottom:82px}.foundation-section-index a{display:none}.foundation-section-title{gap:12px;margin-bottom:28px}.foundation-section-title h2{font-size:31px}.foundation-feature{grid-template-columns:1fr;gap:14px;padding:22px 20px}.foundation-feature-number{color:var(--foundation-blue)}.foundation-feature-meta{grid-column:1}.foundation-file-grid{grid-template-columns:1fr;gap:24px}.foundation-file{min-height:280px;padding:23px 22px}.foundation-rule{margin-bottom:72px}.foundation-landing-cta{margin:0 -16px;padding:76px 16px}.foundation-reader-shell{width:calc(100% - 32px);padding-top:72px;padding-bottom:96px}.foundation-toc-header{padding-bottom:32px}.foundation-toc-header h1{font-size:44px}.foundation-toc-chapter{padding-top:48px}.foundation-toc-chapter-head{grid-template-columns:30px 1fr;gap:10px}.foundation-toc-chapter-head h2{font-size:24px}.foundation-toc-list a,.foundation-toc-list .is-pending{grid-template-columns:44px minmax(0,1fr) 16px;gap:8px}.foundation-toc-list small{display:none}.foundation-article-header{margin-bottom:44px}.foundation-article-header h1{font-size:39px}.foundation-page-toc{margin-bottom:48px}.foundation-prose{text-align:left;font-size:15px}.foundation-prose-lead{font-size:18px}.foundation-prose h2{margin-top:58px;font-size:19px}.foundation-prose h3{margin-top:34px;font-size:16px}.foundation-prose table{min-width:560px}.foundation-note{grid-template-columns:1fr;gap:6px}.foundation-article-next>span{font-size:22px}.foundation-article-next>div{flex-direction:column;align-items:flex-start}.foundation-paywall-modal{padding:12px}.foundation-locked-preview>p{font-size:16px}.foundation-paywall{border-radius:16px;padding:26px 18px 20px}.foundation-paywall-header{flex-direction:column;align-items:flex-start;gap:16px;padding-right:18px}.foundation-paywall-header h1{font-size:25px}.foundation-paywall-header>strong{font-size:38px}.foundation-paywall-panel{grid-template-columns:1fr;margin-top:34px}.foundation-paywall-code{padding:28px 22px 30px}.foundation-paywall-code form>div{grid-template-columns:1fr}.foundation-paywall-code button{min-height:46px}.foundation-paywall-wechat{padding:28px 22px}.foundation-paywall-meta{flex-direction:column;align-items:flex-start;gap:8px}.foundation-paywall-meta span+span:before{display:none}.learning-footer-inner{grid-template-columns:1fr;gap:12px}.learning-footer-inner>span:last-child{text-align:left}.learning-footer nav{flex-wrap:wrap;grid-area:auto;gap:9px 16px}.learning-quick-starts,.learning-module-grid,.learning-stage-grid,.learning-list-grid,.learning-product-grid,.learning-role-groups,.learning-task-structure,.learning-industry-grid,.learning-flow,.learning-topic-grid,.learning-download-grid{grid-template-columns:1fr}.download-detail-header{flex-direction:column;align-items:flex-start}.download-pdf-preview iframe{height:70vh;min-height:520px}.role-group-grid,.enterprise-chapter-grid{grid-template-columns:1fr}.learning-module-card{min-height:0}.learning-callout,.learning-service-note{flex-direction:column;align-items:flex-start}.learning-callout{padding:26px}.service-card-grid.is-enterprise,.service-card-grid.is-personal{grid-template-columns:1fr}.service-card{min-height:0}.section-heading.row{flex-direction:column;align-items:flex-start}.hero-copy{text-align:left}.hero-copy>p{margin-left:0}.card-body>p{min-height:0}.footer-grid{gap:30px}}
