.learning-main{background:radial-gradient(ellipse at 90% 0,rgba(37,103,159,.12),transparent 48%),#061020}
.learning-hero{padding:42px 0 36px;border-bottom:1px solid rgba(255,255,255,.1)}
.learning-hero h1{max-width:940px;margin:16px 0;font-size:clamp(32px,4.2vw,54px);line-height:1.12;letter-spacing:-.025em}
.learning-breadcrumb{margin:0 0 24px;color:#9fb1ca;font-size:.9rem}.learning-breadcrumb a{color:#bbcbdf;text-decoration:underline;text-underline-offset:4px}
.learning-lead{max-width:820px;color:#bbc9dc;font-size:1.1rem;line-height:1.7}
.learning-badges{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 12px}.learning-badges span{padding:7px 11px;border:1px solid rgba(245,208,112,.25);border-radius:12px;color:#f3d180;font-size:.85rem}
.learning-date{color:#9fb1ca;font-size:.86rem;line-height:1.6}
.learning-article{max-width:1000px;padding-top:10px;padding-bottom:72px;color:#c4d0e0;line-height:1.75}
.learning-section{margin:38px 0}.learning-section h2,.learning-article>h2{color:#f2f6fc;font-size:clamp(25px,2.7vw,33px);line-height:1.25;margin:0 0 18px}
.learning-article h3{color:#ecf2fb;font-size:1.2rem;line-height:1.35;margin:0 0 12px}.learning-article p{margin:0 0 15px}.learning-article a{color:#f2d187;text-decoration:underline;text-underline-offset:4px}.learning-article a:hover{color:#ffe4a6}
.learning-article strong{color:#e9f1fc}.learning-article code{font-size:.92em;overflow-wrap:anywhere;color:#cce6f8}
.learning-toc{display:flex;flex-wrap:wrap;gap:8px 20px;margin:28px 0;padding:18px 20px;border:1px solid rgba(83,180,210,.22);border-radius:18px;background:rgba(17,39,66,.6)}.learning-toc a{display:inline-flex;align-items:center;min-height:44px}
.learning-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.learning-grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}
.learning-card,.learning-term{min-width:0;padding:24px;border:1px solid rgba(255,255,255,.12);border-radius:20px;background:linear-gradient(145deg,rgba(15,33,56,.92),rgba(5,15,30,.92))}
.learning-card p:last-child,.learning-term p:last-child{margin-bottom:0}.learning-card a,.learning-term a{display:inline-flex;align-items:center;min-height:44px}.learning-card ul{padding-left:20px}
.learning-grid>a.learning-card{display:block;margin-right:0;color:#c4d0e0;text-decoration:none}.learning-grid>a.learning-card h3{color:#f3d180}.learning-grid>a.learning-card>span{display:block;min-height:44px;line-height:44px;color:#f3d180}.learning-grid>a.learning-card:hover{border-color:rgba(246,202,96,.45)}
.learning-note,.learning-next{margin:28px 0;padding:22px 26px;border:1px solid rgba(246,202,96,.26);border-radius:18px;background:rgba(226,176,49,.055)}.learning-note p:last-child,.learning-next p:last-child{margin-bottom:0}
.learning-next h2{color:#f2f6fc;margin:0 0 12px;font-size:1.55rem}.learning-next a{display:inline-flex;align-items:center;min-height:44px;margin-right:16px}
.learning-steps{padding-left:28px;margin:20px 0}.learning-steps>li{padding:0 0 18px 10px}.learning-steps>li::marker{color:#f0ca73;font-weight:800}.learning-steps>li strong{display:block;margin-bottom:6px}
.learning-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:10px;margin:24px 0;padding:0;list-style:none}.learning-flow>div,.learning-flow>li{flex:1 1 145px;min-width:0;list-style:none;padding:16px;border:1px solid rgba(112,188,214,.25);border-radius:15px;background:rgba(18,44,68,.65)}.learning-flow>span{align-self:center;color:#e8c778}.learning-flow b,.learning-flow strong{display:block;color:#eef5fd}.learning-flow small,.learning-flow>li>span{display:block;color:#adc2d7;font-size:.88rem;line-height:1.6;margin-top:6px}
.learning-article details{margin:12px 0;padding:0 20px;border:1px solid rgba(255,255,255,.13);border-radius:16px;background:rgba(17,34,55,.72)}.learning-article summary{cursor:pointer;min-height:54px;padding:15px 0;color:#eff5fe;font-weight:700;line-height:1.45}.learning-article details[open] summary{margin-bottom:8px}.learning-article details>p{padding-bottom:8px}
.learning-article a:focus-visible,.learning-article summary:focus-visible{outline:3px solid #f7d175;outline-offset:5px;border-radius:5px}
.dbm-beginner-entry{display:flex;gap:24px;align-items:center;justify-content:space-between;margin:26px 0 24px;padding:23px 26px;border:1px solid rgba(113,183,211,.28);border-radius:20px;background:linear-gradient(120deg,rgba(25,58,88,.72),rgba(10,24,47,.8))}.dbm-beginner-entry h3{margin:5px 0 9px;font-size:1.25rem;line-height:1.3}.dbm-beginner-entry p{max-width:700px;margin:0;color:#b6c7dc;line-height:1.65}.dbm-beginner-entry .btn{flex:none;min-height:48px;white-space:normal;text-align:center}
@media(max-width:800px){.learning-grid,.learning-grid-three{grid-template-columns:1fr}.learning-hero{padding-top:28px}.learning-section{margin:30px 0}.dbm-beginner-entry{align-items:flex-start;flex-direction:column;gap:16px}}
@media(max-width:430px){.learning-card,.learning-term{padding:20px}.learning-note,.learning-next{padding:20px}.learning-toc{padding:13px 16px;gap:4px 14px}.learning-lead{font-size:1rem}.learning-hero h1{font-size:32px}.learning-steps{padding-left:23px}.learning-steps>li{padding-left:4px}.dbm-beginner-entry{padding:20px}}