/* 原主题负责背景、颜色、字号；这里仅叠加圆角与空间层次。 */
body:has(.science-home) .site-header.site-shell{position:relative;top:auto;border-radius:0}
.science-home .home-hero{border-radius:28px;box-shadow:0 18px 44px -20px #173f5945}
.science-home .home-optics{border-radius:20px;box-shadow:0 16px 30px -14px #0005,inset 0 1px #b7edff17}
.science-home .home-subjects{border-radius:0 0 28px 28px}
.science-home .home-featured-card{border-radius:22px;box-shadow:0 12px 25px -16px #24463d47;transition:transform .24s,box-shadow .24s}
.science-home .home-featured-card:hover{transform:translateY(-3px);box-shadow:0 20px 32px -16px #24463d50}
.science-home .model-groups{border-radius:18px;box-shadow:0 10px 28px -20px #254c4559}
.science-home .home-search,.science-home .model-group-tab{border-radius:10px}
.science-home .model-save-card .model-card{border-radius:22px;box-shadow:0 2px 3px #30443f05,0 12px 25px -15px #304d4847;transition:transform .24s cubic-bezier(.2,.7,.2,1),box-shadow .24s,border-color .24s;overflow:hidden}
.science-home .model-save-card .model-card:hover,.science-home .model-save-card .model-card:focus-within{transform:translateY(-4px);box-shadow:0 5px 10px #304d4808,0 23px 34px -17px #304d4859}
.science-home .home-teaching{border-radius:22px;box-shadow:0 12px 25px -20px #304d4833}
#model-library{scroll-margin-top:28px}
/* 暗色保留原配色，只调整卡片阴影。 */
html[data-science-theme="dark"] .science-home .model-save-card .model-card{box-shadow:0 12px 25px -13px #0007}
html[data-science-theme="dark"] .science-home .model-save-card .model-card:hover{box-shadow:0 22px 32px -15px #0009}
/* 淡入只播放一次，起始状态仍清晰；不为所有卡片常驻合成图层。 */
@keyframes home-arrive{from{opacity:.88;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
.science-home .home-arrive{animation:home-arrive .32s ease-out both}
@media(prefers-reduced-motion:reduce){.science-home .home-arrive{animation:none}.science-home .model-save-card .model-card,.science-home .home-featured-card{transition:none}.science-home .model-save-card .model-card:hover,.science-home .home-featured-card:hover{transform:none}}