/* ============ 升学百科专题页 ============ */
.topic-page{
    background: #fff;
}
.topic-hero{
    position: relative;
    padding: 48px 0 60px;
    background:
        radial-gradient(800px 400px at 80% -10%, color-mix(in srgb, var(--topic-color) 22%, transparent) 0%, transparent 60%),
        radial-gradient(700px 400px at 10% 110%, #FFF3EB 0%, transparent 60%),
        linear-gradient(180deg, #F8FBFF 0%, #fff 100%);
    overflow: hidden;
}
.topic-hero .breadcrumb{ margin-bottom: 24px; }
.topic-hero h1{
    font-size: clamp(32px, 4vw, 46px);
    letter-spacing: -0.5px;
    margin-bottom: 10px;
    color: var(--color-text);
}
.topic-sub{
    font-size: 18px;
    color: var(--topic-color);
    font-weight: 600;
    margin-bottom: 18px;
}
.topic-intro{
    max-width: 720px;
    color: var(--color-text-light);
    line-height: 1.75;
    font-size: 15.5px;
    margin-bottom: 28px;
}
.topic-facts{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    max-width: 720px;
    margin-bottom: 28px;
}
.topic-facts li{
    padding: 18px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
}
.topic-facts strong{
    display: block;
    font-size: 22px;
    font-weight: 800;
    color: var(--topic-color);
    margin-bottom: 4px;
    letter-spacing: -0.2px;
}
.topic-facts span{
    font-size: 12.5px;
    color: var(--color-text-light);
}
.topic-hero-cta{
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.topic-body{
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding: 48px 0 80px;
}
.topic-section{
    padding: 32px 36px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}
.topic-section h2{
    font-size: 22px;
    margin-bottom: 22px;
    padding-left: 14px;
    position: relative;
}
.topic-section h2::before{
    content:"";
    position: absolute;
    left: 0; top: 6px; bottom: 6px;
    width: 4px;
    background: var(--topic-color);
    border-radius: 2px;
}

/* 时间轴 */
.topic-timeline{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.topic-timeline li{
    padding: 20px;
    background: var(--color-bg-soft);
    border-radius: var(--radius-md);
    position: relative;
}
.tl-num{
    display: inline-block;
    padding: 4px 10px;
    background: var(--topic-color);
    color: #fff;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 12px;
}
.tl-body h3{
    font-size: 16px;
    margin-bottom: 8px;
}
.tl-body h3 small{
    display: block;
    font-size: 12.5px;
    color: var(--color-text-light);
    font-weight: 500;
    margin-top: 3px;
}
.tl-body ul li{
    padding: 4px 0 4px 14px;
    font-size: 13.5px;
    color: var(--color-text);
    background: none;
    border-radius: 0;
    position: relative;
}
.tl-body ul li::before{
    content:"•";
    position: absolute;
    left: 0;
    color: var(--topic-color);
    font-weight: 700;
}

/* 学科卡片 */
.topic-subjects{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.topic-subjects article{
    padding: 20px 22px;
    background: var(--color-bg-soft);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--topic-color);
}
.topic-subjects header{
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
}
.topic-subjects strong{ font-size: 17px; }
.topic-subjects em{
    font-style: normal;
    font-size: 12.5px;
    color: var(--topic-color);
    font-weight: 600;
}
.topic-subjects p{
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.65;
}

/* 推荐老师 */
.topic-teachers{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.topic-teacher{
    display: flex;
    gap: 14px;
    padding: 18px;
    background: var(--color-bg-soft);
    border-radius: var(--radius-md);
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
    color: inherit;
}
.topic-teacher:hover{
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}
.tt-avatar{
    flex-shrink: 0;
    width: 56px; height: 56px;
    border-radius: 50%;
    display: grid; place-items: center;
    color: #fff;
    font-weight: 700;
    font-size: 22px;
}
.topic-teacher strong{
    display: block;
    font-size: 15px;
    margin-bottom: 2px;
}
.topic-teacher span{
    font-size: 12.5px;
    color: var(--color-text-light);
    display: block;
    margin-bottom: 6px;
}
.topic-teacher p{
    font-size: 13px;
    color: var(--color-text);
    line-height: 1.55;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* FAQ */
.topic-faqs > div{
    padding: 18px 0;
    border-bottom: 1px dashed var(--color-border);
}
.topic-faqs > div:last-child{ border-bottom: 0; padding-bottom: 0; }
.topic-faqs > div:first-child{ padding-top: 0; }
.topic-faqs dt{
    font-weight: 600;
    font-size: 15.5px;
    margin-bottom: 8px;
    color: var(--color-text);
}
.topic-faqs dt::first-letter{
    color: var(--topic-color);
    font-weight: 800;
    margin-right: 6px;
}
.topic-faqs dd{
    color: var(--color-text-light);
    line-height: 1.8;
    font-size: 14.5px;
}

.topic-cta{
    text-align: center;
    background: linear-gradient(120deg, color-mix(in srgb, var(--topic-color) 8%, #fff), #FFF3EB);
    border: 0;
}
.topic-cta p{ color: var(--color-text-light); margin-bottom: 16px; font-size: 15px; }

/* 更多百科 */
.topic-more{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.topic-more-card{
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 20px 22px;
    background: var(--color-bg-soft);
    border-radius: var(--radius-md);
    color: inherit;
    border-left: 3px solid var(--tc);
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.topic-more-card:hover{
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}
.topic-more-card strong{ font-size: 16px; color: var(--tc); }
.topic-more-card span{ font-size: 13px; color: var(--color-text-light); }
.topic-more-card em{
    margin-top: 6px;
    font-style: normal;
    font-size: 12.5px;
    color: var(--tc);
    font-weight: 600;
}

@media (max-width: 960px){
    .topic-facts{ grid-template-columns: repeat(2, 1fr); }
    .topic-timeline{ grid-template-columns: 1fr; }
    .topic-subjects{ grid-template-columns: 1fr; }
    .topic-teachers{ grid-template-columns: 1fr; }
    .topic-more{ grid-template-columns: 1fr; }
    .topic-section{ padding: 24px; }
}

/* 首页 · 升学百科入口 */
.wiki-entry{
    padding: 36px 0;
    background: linear-gradient(180deg, #fff 0%, #F8FBFF 100%);
}
.wiki-grid{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.wiki-card{
    display: block;
    padding: 26px 24px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: inherit;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
    border-top: 4px solid var(--wc);
}
.wiki-card:hover{
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}
.wiki-card strong{
    display: block;
    font-size: 20px;
    color: var(--wc);
    margin-bottom: 6px;
}
.wiki-card span{
    display: block;
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 12px;
    min-height: 36px;
}
.wiki-card em{
    font-style: normal;
    font-size: 13px;
    font-weight: 600;
    color: var(--wc);
}
@media (max-width: 860px){
    .wiki-grid{ grid-template-columns: repeat(2, 1fr); }
}