.topic-detail-page{color:#0a2044;background:#fff}.topic-detail-hero{padding:42px 0 48px;overflow:hidden;border-bottom:1px solid #dfe8f4;background:radial-gradient(circle at 79% 25%,rgba(31,105,231,.16),transparent 28%),linear-gradient(135deg,#fff,#f2f7ff)}.topic-hero-grid{display:grid;grid-template-columns:1fr 260px;gap:85px;align-items:center}.topic-hero-grid h1{margin:15px 0 6px;font-size:clamp(42px,5.2vw,62px);letter-spacing:-.045em}.topic-hero-grid h2{max-width:760px;margin:0 0 15px;font-size:21px;line-height:1.5}.topic-hero-grid>div>p{max-width:760px;margin:0;color:#5b6f89;font-size:13px}.topic-hero-card{min-height:250px;padding:26px;border:1px solid #d5e2f4;border-radius:16px;background:rgba(255,255,255,.86);box-shadow:0 20px 45px rgba(25,69,133,.1);text-align:center}.topic-hero-icon{width:92px;height:92px;margin:0 auto 18px;display:grid;place-items:center;border-radius:26px;background:linear-gradient(145deg,#1761df,#12a4b8);color:#fff;font-size:35px;font-weight:800;box-shadow:0 16px 30px rgba(24,96,208,.22)}.topic-hero-card small{display:block;color:#73859c;font-size:9px}.topic-hero-card strong{display:block;margin:4px 0;color:#124eae;font:800 38px Arial}.topic-hero-card p{margin:0;color:#71839a;font-size:9px}
.topic-switcher{position:sticky;top:68px;z-index:20;border-bottom:1px solid #dfe7f2;background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}.topic-switcher .shell{display:grid;grid-template-columns:repeat(4,1fr)}.topic-switcher a{min-height:66px;display:flex;align-items:center;gap:10px;padding:0 15px;border-bottom:3px solid transparent;color:#657994;font-size:10px}.topic-switcher a:not(:last-child){border-right:1px solid #e6edf6}.topic-switcher b{color:#a9bad0;font:800 10px Arial}.topic-switcher a.active{border-bottom-color:#1761df;background:#f7faff;color:#1557c7;font-weight:700}.topic-switcher a.active b{color:#1761df}
.topic-content-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;align-items:start}.topic-section-heading{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:18px}.topic-section-heading small{color:#2368d5;font:700 8px Arial;letter-spacing:.13em}.topic-section-heading h2{margin:6px 0 0;font-size:27px}.topic-section-heading>span{color:#7c8ca1;font-size:9px}.topic-resource-list{display:grid;gap:10px}.topic-resource-list>a{display:grid;grid-template-columns:38px 1fr 80px 26px;gap:13px;align-items:center;padding:17px;border:1px solid #dce6f3;border-radius:10px;background:#fff;transition:.18s}.topic-resource-list>a:hover{transform:translateX(3px);border-color:#a8c4ed;box-shadow:0 10px 24px rgba(25,70,136,.07)}.topic-resource-list>a>b{align-self:start;padding-top:3px;color:#c3d3e7;font:800 16px Arial}.topic-resource-list>a>div>span{display:inline-block;padding:3px 7px;border-radius:14px;background:#ecf3ff;color:#2465ca;font-size:8px}.topic-resource-list h3{margin:7px 0 4px;font-size:15px}.topic-resource-list p{margin:0;color:#687a92;font-size:10px}.topic-resource-list>a>small{text-align:right;color:#7c8da1;font-size:8px}.topic-resource-list>a>i{width:25px;height:25px;display:grid;place-items:center;border:1px solid #cfddf0;border-radius:6px;color:#1760da;font-style:normal}.topic-side{position:sticky;top:156px;display:grid;gap:12px}.topic-side>section{padding:18px;border:1px solid #dce6f3;border-radius:10px;background:#fff}.topic-side>section>small{color:#2b6bd2;font:700 8px Arial;letter-spacing:.1em}.topic-side h3{margin:6px 0 12px;font-size:15px}.topic-side ul{list-style:none;margin:0;padding:0}.topic-side li{position:relative;padding:7px 0 7px 18px;border-bottom:1px solid #edf1f6;color:#536a86;font-size:9px;line-height:1.55}.topic-side li:last-child{border-bottom:0}.topic-side li:before{content:"✓";position:absolute;left:0;color:#16a38e;font-weight:700}.topic-side>section>a{display:flex;justify-content:space-between;padding:10px 0;border-top:1px solid #edf1f6;color:#1b5ecb;font-size:9px;font-weight:700}.topic-side-note{background:linear-gradient(145deg,#f0f6ff,#fff)!important}.topic-side-note b{font-size:11px}.topic-side-note p{margin:7px 0 0;color:#677b94;font-size:9px}
.topic-roadmap-section{padding:68px 0;background:linear-gradient(180deg,#f4f8fd,#eef4fb);border-block:1px solid #dfe8f3}.topic-roadmap{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:30px}.topic-roadmap>a{position:relative;min-height:185px;padding:19px;border:1px solid #d9e4f2;border-radius:10px;background:#fff;transition:.18s}.topic-roadmap>a:hover{transform:translateY(-3px);border-color:#adc7ed}.topic-roadmap>a.active{border-color:#3475df;box-shadow:0 12px 28px rgba(25,87,192,.1)}.topic-roadmap>a>b{color:#c2d3e8;font:800 13px Arial}.topic-roadmap>a>i{width:43px;height:43px;margin-top:20px;display:grid;place-items:center;border-radius:12px;background:#eaf2ff;color:#1760da;font-style:normal;font-weight:800}.topic-roadmap h3{margin:13px 0 7px;font-size:14px}.topic-roadmap>a>span{color:#1c61cf;font-size:9px;font-weight:700}.topic-roadmap>a.active:after{content:"当前专题";position:absolute;right:12px;top:12px;padding:4px 7px;border-radius:15px;background:#eaf2ff;color:#1761dc;font-size:7px}.topic-pagination{padding:25px 0;background:#fff}.topic-pagination .shell{display:grid;grid-template-columns:1fr 1fr;gap:14px}.topic-pagination a{padding:18px;border:1px solid #dce6f3;border-radius:9px;background:#fff;transition:.18s}.topic-pagination a:hover{border-color:#aac5ed}.topic-pagination a.next{text-align:right}.topic-pagination small{display:block;color:#7c8da2;font-size:8px}.topic-pagination b{display:block;margin-top:5px;font-size:12px}
.topic-grid>a{display:block;padding:17px;border:1px solid #dce6f4;border-radius:8px;background:#fff;transition:.18s}.topic-grid>a:hover{transform:translateY(-3px);border-color:#abc6ee;box-shadow:0 12px 28px rgba(25,70,136,.08)}.topic-grid>a>i{float:left;margin-right:11px}.topic-grid>a>span{display:inline-block;margin-top:10px;color:#1b61d2;font-size:9px;font-weight:700}.learning-roadmap>a{display:block;padding:13px;border:1px solid #dce6f4;border-radius:8px;background:#fff;transition:.18s}.learning-roadmap>a:hover{transform:translateY(-2px);border-color:#abc5ec}.learning-roadmap>a>b{font:700 13px Arial;color:#1557e8}.learning-roadmap>a>h3{font-size:11px;margin:5px 0}.learning-roadmap>a>p{font-size:8px;color:#64758f;margin:0}
@media(max-width:900px){.topic-hero-grid,.topic-content-layout{grid-template-columns:1fr}.topic-hero-card{max-width:360px}.topic-side{position:static;grid-template-columns:1fr 1fr}.topic-side-note{grid-column:1/3}.topic-switcher span{display:none}.topic-switcher a{justify-content:center}.topic-roadmap{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.topic-detail-hero{padding-top:92px}.topic-hero-grid{gap:30px}.topic-hero-grid h1{font-size:39px}.topic-hero-grid h2{font-size:17px}.topic-switcher{top:105px}.topic-resource-list>a{grid-template-columns:29px 1fr 24px}.topic-resource-list>a>small{display:none}.topic-side{grid-template-columns:1fr}.topic-side-note{grid-column:auto}.topic-roadmap{grid-template-columns:1fr}.topic-roadmap>a{min-height:150px}.topic-pagination .shell{grid-template-columns:1fr}.topic-pagination a.next{text-align:left}}