:root{--paper:#fbfaf6;--ink:#24203b;--body:#494657;--muted:#706c7d;--purple:#493bdf;--purple-dark:#302780;--line:#e9e5e7;--soft:#f2f0ff;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:var(--purple);text-underline-offset:3px}a:hover{color:var(--purple-dark)}a:focus-visible,summary:focus-visible{outline:3px solid #8e84f4;outline-offset:4px}img{max-width:100%}h1,h2,h3,p{margin-top:0}.learn-wrap{width:min(1100px,calc(100% - 40px));margin-inline:auto}.learn-reading-wrap{width:min(720px,calc(100% - 40px));margin-inline:auto}
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.learn-eyebrow,.learn-section-index{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--purple);margin:0 0 16px}.learn-landing-hero{padding:74px 0 55px;background:radial-gradient(ellipse 55% 90% at 92% 0%,#eae6ff 0%,transparent 75%)}.learn-landing-hero h1{max-width:850px;color:var(--ink);font-size:clamp(34px,5.6vw,62px);line-height:1.22;letter-spacing:-.055em;margin:0 0 24px}.learn-intro{max-width:620px;font-size:18px;line-height:1.85;color:#5a5668;margin:0}.learn-list-section{padding:48px 0 110px}.learn-list-heading h2{font-size:clamp(26px,3vw,37px);color:var(--ink);letter-spacing:-.04em;margin:0 0 25px}.learn-list-heading .learn-eyebrow{margin-bottom:4px}.learn-article-card{display:block;text-decoration:none;background:#fff;border:1px solid #e5e0f1;border-radius:22px;overflow:hidden;box-shadow:0 10px 36px rgba(34,27,74,.045);transition:transform .2s ease,box-shadow .2s ease}.learn-article-card:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(34,27,74,.09)}.learn-card-top{display:flex;justify-content:space-between;gap:10px;padding:16px 26px;background:var(--soft);font-size:12px;font-weight:750;color:var(--purple-dark)}.learn-card-body{padding:32px 30px 34px;display:flex;justify-content:space-between;gap:20px;align-items:end}.learn-card-body h3{font-size:clamp(22px,3vw,31px);line-height:1.38;letter-spacing:-.035em;color:var(--ink);margin:0 0 12px}.learn-card-body p{font-size:16px;color:var(--body);margin:0 0 20px}.learn-card-date,.learn-list-note{font-size:13px;color:var(--muted)}.learn-list-note{margin:22px 0 0}.learn-card-arrow{width:42px;height:42px;display:grid;place-items:center;flex:none;border-radius:50%;background:var(--ink);color:#fff;font-size:20px}
.learn-article-head{padding-top:50px;padding-bottom:38px}.learn-breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:54px}.learn-breadcrumb a{color:var(--muted)}.learn-article-head h1{color:var(--ink);font-size:clamp(33px,4.4vw,51px);line-height:1.27;letter-spacing:-.05em;margin:0 0 22px}.learn-article-deck{font-size:18px;color:#545062;line-height:1.83;margin:0 0 24px}.learn-byline{display:flex;flex-wrap:wrap;gap:5px 22px;font-size:12px;color:var(--muted)}.learn-answer{padding:28px 31px;background:var(--soft);border-radius:18px;border-left:4px solid var(--purple);margin:0 0 65px}.learn-answer-label{font-size:13px;font-weight:800;color:var(--purple);margin:0 0 10px}.learn-answer p:last-child{font-size:18px;line-height:1.75;color:var(--ink);margin:0}.learn-answer strong{font-weight:760}.learn-content-section{margin:0 0 68px}.learn-content-section h2{color:var(--ink);font-size:clamp(25px,3vw,32px);line-height:1.36;letter-spacing:-.04em;margin:0 0 23px}.learn-content-section>p:not(.learn-section-index){margin:0;color:var(--body);line-height:1.9}.learn-steps{padding:0;margin:0;list-style:none;border-top:1px solid var(--line)}.learn-steps li{display:grid;grid-template-columns:36px 1fr;gap:17px;padding:24px 0;border-bottom:1px solid var(--line)}.learn-step-no{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#e6e2ff;color:var(--purple-dark);font-size:14px;font-weight:800}.learn-steps h3{font-size:19px;color:var(--ink);margin:0 0 6px;line-height:1.5}.learn-steps p{margin:0;line-height:1.85}.learn-soft-section{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px}.learn-record-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.learn-record-list div{display:flex;flex-direction:column;gap:6px;padding:16px;background:var(--paper);border-radius:12px}.learn-record-list strong{color:var(--ink);font-size:14px}.learn-record-list span{font-size:13px;line-height:1.55;color:var(--muted)}.learn-small-note{font-size:13px;color:var(--muted)!important;margin:18px 0 0!important}.learn-boundary-note{margin-top:19px;padding:16px 18px;border-left:3px solid #b3aaff;background:#f4f1ff;border-radius:0 10px 10px 0;color:var(--ink);font-size:14px}.learn-product-panel{background:var(--ink);color:#fff;border-radius:22px;padding:32px;margin:10px 0 68px}.learn-product-panel .learn-eyebrow{color:#bab2ff;margin-bottom:8px}.learn-product-panel h2{font-size:clamp(24px,3vw,31px);line-height:1.35;letter-spacing:-.035em;color:#fff;margin:0 0 10px}.learn-product-panel p:not(.learn-eyebrow){color:#e0ddea;margin:0;font-size:15px;line-height:1.8}.learn-product-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.learn-button{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 19px;border-radius:999px;text-decoration:none;font-size:14px;font-weight:750}.learn-button-primary{background:#dcd6ff;color:var(--ink)}.learn-button-primary:hover{background:#fff;color:var(--ink)}.learn-button-outline{border:1px solid #aaa1d5;color:#fff}.learn-button-outline:hover{border-color:#fff;color:#fff}.learn-faq details{border-top:1px solid var(--line);padding:17px 0}.learn-faq details:last-child{border-bottom:1px solid var(--line)}.learn-faq summary{cursor:pointer;display:list-item;color:var(--ink);font-size:16px;font-weight:720}.learn-faq details p{margin:10px 0 0;font-size:15px}.learn-sources{border-top:1px solid var(--line);padding:28px 0 0;margin:0 0 65px}.learn-sources h2{font-size:18px;color:var(--ink);margin:0 0 12px}.learn-sources ol{padding-left:21px;margin:0 0 14px}.learn-sources li{font-size:13px;margin:7px 0;line-height:1.7}.learn-sources p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}.learn-end-link{margin-bottom:78px;font-size:14px}.learn-footer{background:#eeeafb;padding:43px 0;color:var(--ink)}.learn-footer-inner{display:flex;justify-content:space-between;gap:25px}.learn-footer strong{font-size:17px}.learn-footer p{font-size:13px;color:var(--muted);margin:4px 0 0}.learn-footer nav{display:flex;align-items:center;gap:20px}.learn-footer nav a{font-size:13px;color:var(--ink);text-decoration:none}
@media(max-width:700px){.learn-header-inner{min-height:60px}.learn-header nav{gap:13px}.learn-header nav .learn-nav-home{display:none}.learn-header nav .learn-nav-cta{padding:7px 12px}.learn-landing-hero{padding:44px 0 30px}.learn-intro{font-size:16px;line-height:1.72}.learn-list-section{padding:30px 0 85px}.learn-card-top{padding:12px 18px}.learn-card-body{padding:24px 20px;align-items:center}.learn-card-body p{font-size:14px}.learn-card-arrow{width:34px;height:34px;font-size:17px}.learn-article-head{padding-top:26px;padding-bottom:28px}.learn-breadcrumb{margin-bottom:42px}.learn-article-deck{font-size:16px}.learn-answer{margin-bottom:55px;padding:21px 22px}.learn-answer p:last-child{font-size:16px}.learn-content-section{margin-bottom:58px}.learn-soft-section{padding:23px 20px}.learn-record-list{grid-template-columns:1fr}.learn-record-list div{flex-direction:row;gap:14px;align-items:baseline}.learn-record-list strong{min-width:88px}.learn-product-panel{padding:25px 22px;margin-bottom:58px}.learn-product-actions{display:grid;grid-template-columns:1fr 1fr}.learn-button{padding:10px 8px;font-size:13px}.learn-footer-inner{display:block}.learn-footer nav{margin-top:22px;flex-wrap:wrap}}
@media(max-width:370px){.learn-brand span{font-size:14px}.learn-header nav{gap:9px}.learn-header nav a{font-size:12px}.learn-product-actions{grid-template-columns:1fr}}
.learn-article-card+.learn-article-card{margin-top:20px}.learn-related{margin:0 0 48px;padding-top:24px;border-top:1px solid var(--line)}.learn-related a{display:flex;justify-content:space-between;gap:18px;padding:14px 0;min-height:48px;text-decoration:none;border-bottom:1px solid var(--line);font-size:16px;line-height:1.65}.learn-related a span{flex:none}.learn-related .learn-eyebrow{margin-bottom:4px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.learn-article-card{transition:none}}