.md-learning{--md-ink:#10213a;--md-muted:#62666a;--md-rule:#d9d4ca;--md-ivory:#f7f5ef;color:var(--md-ink);font-family:var(--text-font-family);background:var(--md-ivory)}.md-learning *{box-sizing:border-box}.md-learning a{color:inherit;text-decoration:none}.md-learning h1,.md-learning h2,.md-learning h3{font-family:var(--heading-font-family);font-weight:400;letter-spacing:0;text-transform:none;line-height:1.13}.md-learning h1{font-size:clamp(2.5rem,4.9vw,5.2rem);margin:1.2rem 0 1.6rem;max-width:12ch}.md-learning h2{font-size:clamp(2rem,3.3vw,3.5rem);margin:.6rem 0 1.2rem}.md-learning p{margin:0}.md-learning__wrap{max-width:1440px;margin:auto;padding-inline:clamp(1.25rem,5vw,5rem)}.md-learning__eyebrow{font-size:.65rem;line-height:1.5;letter-spacing:.2em;text-transform:uppercase}.md-learning__intro,.md-learning__category-intro{font-size:.95rem;line-height:1.8;max-width:39rem;color:var(--md-muted)}.md-learning-home{padding-block:clamp(3.5rem,7vw,7rem)}.md-learning__heading{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:2.8rem}.md-learning__heading h2{max-width:19ch}.md-learning__text-link{display:inline-flex;align-items:center;justify-content:space-between;gap:1.8rem;border-bottom:1px solid #a69a82;padding:.5rem 0;font-size:.76rem;line-height:1.6;white-space:nowrap}.md-learning__topics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.35rem}.md-learning__topic{display:flex;flex-direction:column;background:#fff}.md-learning__topic-image{position:relative;aspect-ratio:5/4;overflow:hidden;background:#eeeae2}.md-learning__topic-image img,.md-learning__category-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}.md-learning__topic:hover img{transform:scale(1.025)}.md-learning__topic-number{position:absolute;top:.85rem;left:.85rem;background:#f7f5efed;border-radius:50%;width:2rem;height:2rem;display:grid;place-items:center;font-size:.62rem}.md-learning__topic-body{padding:1.5rem 1.3rem 1.3rem;display:flex;flex:1;flex-direction:column;align-items:flex-start}.md-learning__topic h3{font-size:clamp(1.3rem,1.9vw,1.9rem);margin:0 0 .85rem}.md-learning__topic p{font-size:.8rem;line-height:1.7;color:var(--md-muted);margin-bottom:1.4rem}.md-learning__topic-link{margin-top:auto;display:flex;width:100%;justify-content:space-between;align-items:center;border-top:1px solid var(--md-rule);padding-top:.9rem;font-size:.7rem}.md-learning__home-bottom{display:flex;gap:1.5rem;align-items:center;justify-content:space-between;border-top:1px solid var(--md-rule);padding-top:1.4rem;margin-top:2.5rem;font-size:.8rem;color:var(--md-muted)}.md-learning__hero{display:grid;grid-template-columns:1fr 1fr;background:#eeece5;min-height:640px}.md-learning__hero-copy{padding:clamp(3rem,6vw,6rem) clamp(1.5rem,5vw,5rem);display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.md-learning__hero-intro{font-size:1rem;line-height:1.85;color:#555d65;max-width:34rem}.md-learning__button{display:inline-flex;gap:2.5rem;justify-content:space-between;align-items:center;border:1px solid var(--md-ink);background:var(--md-ink);color:#fff!important;padding:1rem 1.4rem;min-height:50px;font-size:.75rem;line-height:1.5;margin-top:1.8rem;transition:background .2s}.md-learning__button:hover{background:#253a55}.md-learning__hero-note{font-size:.66rem;line-height:1.8;letter-spacing:.03em;margin-top:1.6rem!important;color:#697078;max-width:34rem}.md-learning__hero-image{position:relative;min-width:0;background:#fff;overflow:hidden}.md-learning__hero-image>img{width:100%;height:100%;position:absolute;object-fit:cover}.md-learning__image-caption{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;gap:1rem;background:#f7f5efef;padding:1rem 1.5rem;font-size:.58rem;letter-spacing:.11em;text-transform:uppercase}.md-learning__nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--md-rule);background:#fff;padding:0 clamp(1.25rem,5vw,5rem)}.md-learning__nav a{display:flex;align-items:center;gap:1rem;padding:1.4rem 1rem;font-size:.78rem;min-height:58px;border-right:1px solid var(--md-rule);justify-content:center}.md-learning__nav a:last-child{border:0}.md-learning__nav a:hover{background:#f7f5ef}.md-learning__nav span{font-size:.6rem;color:#8a7d64}.md-learning__start{padding-block:clamp(3.5rem,7vw,7rem);display:grid;grid-template-columns:1fr 1.6fr;gap:clamp(2rem,5vw,5rem);scroll-margin-top:160px}.md-learning__start h2{max-width:12ch}.md-learning__paths>a{display:grid;grid-template-columns:1.6rem 1fr 1rem;gap:1rem;border-top:1px solid var(--md-rule);padding:1.3rem 0;align-items:start}.md-learning__paths>a:last-child{border-bottom:1px solid var(--md-rule)}.md-learning__paths>a>span{font-size:.65rem;color:#8a7d64;padding-top:.3rem}.md-learning__paths h3{font-size:1.4rem;margin:0 0 .6rem}.md-learning__paths p{font-size:.8rem;color:var(--md-muted);line-height:1.7}.md-learning__paths b,.md-learning__guides b{font-weight:400}.md-learning__library{padding-bottom:clamp(3.5rem,7vw,7rem)}.md-learning__category{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(2rem,6vw,6rem);padding-block:clamp(3rem,6vw,6rem);border-top:1px solid var(--md-rule);scroll-margin-top:150px}.md-learning__category:nth-child(even) .md-learning__category-visual{order:2}.md-learning__category-visual{align-self:start}.md-learning__category-image{aspect-ratio:1/1;overflow:hidden;background:#fff}.md-learning__category-visual>p{border-top:1px solid #a99c86;margin-top:1.1rem;padding-top:.8rem;font-family:var(--heading-font-family);font-size:clamp(1.1rem,1.7vw,1.5rem);line-height:1.5;font-style:italic}.md-learning__category-copy{align-self:center}.md-learning__guides{margin:1.8rem 0 0;padding:0;list-style:none}.md-learning__guides li{border-top:1px solid var(--md-rule)}.md-learning__guides li:last-child{border-bottom:1px solid var(--md-rule)}.md-learning__guides a{display:grid;grid-template-columns:1.5rem 1fr 1rem;gap:.8rem;align-items:center;padding:1rem 0;min-height:62px;font-size:.88rem;line-height:1.55}.md-learning__guide-index{color:#8a7d64;font-size:.6rem}.md-learning__guides small{display:block;color:#86785d;font-size:.58rem;text-transform:uppercase;letter-spacing:.13em;margin-top:.35rem}.md-learning__guides a:hover>span:nth-child(2),.md-learning__paths>a:hover h3{text-decoration:underline;text-underline-offset:4px}.md-learning__next{background:var(--md-ink);color:#fff;padding-block:clamp(3rem,6vw,6rem)}.md-learning__next>.md-learning__wrap{display:flex;align-items:center;justify-content:space-between;gap:3rem}.md-learning__next h2{max-width:17ch}.md-learning__next p:not(.md-learning__eyebrow){max-width:36rem;color:#d0d4da;font-size:.9rem;line-height:1.8}.md-learning__next-actions{display:flex;flex-direction:column;align-items:stretch;flex-shrink:0;gap:1rem}.md-learning__button--light{color:var(--md-ink)!important;background:var(--md-ivory);border-color:var(--md-ivory);margin-top:0}.md-learning__button--light:hover{background:#e1dacb}.md-learning__fallback{width:100%;height:100%;fill:#c8c0b0}.md-learning a:focus-visible{outline:2px solid #a18d63;outline-offset:5px}@media(max-width:999px){.md-learning__topics{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.1rem}.md-learning__topic h3{font-size:1.75rem}.md-learning__topic p{font-size:.85rem}.md-learning__hero{min-height:540px}.md-learning__hero-copy{padding-inline:1.6rem}.md-learning__nav{padding-inline:.5rem}.md-learning__nav a{gap:.6rem;font-size:.69rem;padding-inline:.6rem}}@media(max-width:699px){.md-learning__heading{flex-direction:column;align-items:flex-start;gap:1rem;margin-bottom:2rem}.md-learning__topics{gap:.8rem}.md-learning__topic-image{aspect-ratio:1/1}.md-learning__topic-body{padding:1.1rem .9rem}.md-learning__topic h3{font-size:1.32rem;line-height:1.18}.md-learning__topic p{font-size:.72rem;line-height:1.7}.md-learning__topic-link{font-size:.63rem}.md-learning__topic-number{width:1.7rem;height:1.7rem;font-size:.55rem;top:.55rem;left:.55rem}.md-learning__home-bottom{flex-direction:column;align-items:flex-start;font-size:.76rem}.md-learning__hero{grid-template-columns:1fr;min-height:0}.md-learning__hero-copy{padding:3.25rem 1.5rem}.md-learning h1{font-size:3.1rem;max-width:13ch}.md-learning__hero-intro{font-size:.9rem}.md-learning__hero-image{aspect-ratio:5/4}.md-learning__nav{grid-template-columns:1fr 1fr;padding:0 1rem}.md-learning__nav a{justify-content:flex-start;gap:.75rem;font-size:.72rem;padding:1.1rem .7rem}.md-learning__nav a:nth-child(2){border-right:0}.md-learning__nav a:nth-child(-n+2){border-bottom:1px solid var(--md-rule)}.md-learning__start{grid-template-columns:1fr;gap:1.5rem}.md-learning__start h2{max-width:16ch}.md-learning__paths h3{font-size:1.3rem}.md-learning__category{grid-template-columns:1fr;gap:1.8rem;padding-block:3rem}.md-learning__category:nth-child(even) .md-learning__category-visual{order:0}.md-learning__category-image{aspect-ratio:5/4}.md-learning__category-visual>p{font-size:1.15rem}.md-learning__category-copy h2{font-size:2.25rem}.md-learning__category-intro{font-size:.87rem}.md-learning__guides a{font-size:.83rem}.md-learning__next>.md-learning__wrap{flex-direction:column;align-items:flex-start;gap:2rem}.md-learning__next-actions{width:100%}.md-learning__next-actions .md-learning__text-link{align-self:flex-start}.md-learning__image-caption{padding:.8rem 1rem;font-size:.52rem}.md-learning__category,.md-learning__start{scroll-margin-top:110px}}@media(prefers-reduced-motion:reduce){.md-learning__topic-image img,.md-learning__category-image img,.md-learning__button{transition:none}.md-learning__topic:hover img{transform:none}}
.md-learning__intro,.md-learning__category-intro,.md-learning__topic p,.md-learning__paths p,.md-learning__next p:not(.md-learning__eyebrow){font-size:16px;line-height:1.75}
.md-learning__hero-intro{font-size:18px;line-height:1.8}
.md-learning__eyebrow{font-size:11px;line-height:1.6}
.md-learning__hero-note,.md-learning__home-bottom{font-size:13px;line-height:1.7}
.md-learning__image-caption,.md-learning__guides small,.md-learning__guide-index,.md-learning__nav span,.md-learning__topic-number{font-size:10px;line-height:1.5}
.md-learning__text-link,.md-learning__button,.md-learning__topic-link{font-size:13px;line-height:1.5;min-height:48px}
.md-learning__topic-link{align-items:center}
.md-learning__nav a{font-size:14px;min-height:52px}
.md-learning__guides a{font-size:16px;line-height:1.65;min-height:64px}
.md-learning__paths>a>span{font-size:11px}
.md-learning__hero-copy,.md-learning__category-copy,.md-learning__topic-body{min-width:0}
.md-learning :is(p,h1,h2,h3){overflow-wrap:break-word}
html[lang^="zh"] .md-learning :is(p,h1,h2,h3){word-break:normal;line-break:strict}
html[lang^="zh"] .md-learning :is(h1,h2,h3){line-height:1.4;max-width:none}
@media(max-width:999px){.md-learning__topic p{font-size:16px}.md-learning__nav a{font-size:13px}}
@media(max-width:699px){
.md-learning__wrap{padding-inline:22px}
.md-learning__heading{gap:14px;margin-bottom:28px}
.md-learning__heading h2{font-size:34px;line-height:1.2;max-width:19ch}
.md-learning__topics{grid-template-columns:minmax(0,1fr);gap:24px}
.md-learning__topic-image{aspect-ratio:5/3}
.md-learning__topic-body{padding:22px 22px 16px}
.md-learning__topic h3{font-size:28px;line-height:1.2;margin-bottom:14px}
.md-learning__topic p{font-size:16px;line-height:1.75;margin-bottom:20px}
.md-learning__topic-link{font-size:13px;min-height:48px;padding-top:10px}
.md-learning__topic-number{width:32px;height:32px;font-size:11px;top:12px;left:12px}
.md-learning__home-bottom{font-size:14px;line-height:1.7;gap:12px;margin-top:28px;padding-top:20px}
.md-learning__hero-copy{padding:42px 24px 36px}
.md-learning h1{font-size:clamp(38px,10vw,46px);line-height:1.13;max-width:13ch}
.md-learning__hero-intro,.md-learning__intro,.md-learning__category-intro,.md-learning__paths p,.md-learning__next p:not(.md-learning__eyebrow){font-size:16px;line-height:1.75}
.md-learning__hero-note{font-size:13px;line-height:1.75}
.md-learning__button{font-size:14px;min-height:52px;padding:15px 20px;gap:20px;max-width:100%}
.md-learning__text-link{font-size:13px;white-space:normal;min-height:48px}
.md-learning__image-caption{font-size:10px;letter-spacing:.06em;padding:12px 16px;line-height:1.6}
.md-learning__nav{padding-inline:12px}
.md-learning__nav a{font-size:13px;line-height:1.45;min-height:58px;padding:14px 10px;gap:8px}
.md-learning__nav span{font-size:10px;flex-shrink:0}
.md-learning__start{gap:20px;padding-block:44px}
.md-learning__start h2{font-size:32px;line-height:1.2;max-width:16ch}
.md-learning__paths h3{font-size:25px;line-height:1.25}
.md-learning__paths>a{padding-block:22px;grid-template-columns:24px minmax(0,1fr) 16px;gap:12px}
.md-learning__paths>a>span{font-size:11px;line-height:1.6}
.md-learning__category{gap:26px;padding-block:44px}
.md-learning__category-copy h2{font-size:32px;line-height:1.2}
.md-learning__category-visual>p{font-size:19px;line-height:1.55}
.md-learning__guides a{font-size:16px;line-height:1.65;grid-template-columns:22px minmax(0,1fr) 16px;gap:10px;min-height:68px;padding-block:16px}
.md-learning__guides small{font-size:10px;line-height:1.6;letter-spacing:.08em}
.md-learning__guide-index{font-size:11px}
.md-learning__next h2{font-size:32px;line-height:1.2}
.md-learning__next-actions .md-learning__button{width:100%}
html[lang^="zh"] .md-learning :is(h1,h2,h3){line-height:1.4;max-width:none}
}
.md-learning__guide-index,.md-learning__nav span,.md-learning__paths>a>span,.md-learning__guides small{color:#6e604a}