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.hero-actions .button{font-size:14px}.watch-link{font-size:14px}
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.about-highlights>div{display:flex;align-items:center;gap:17px;padding:25px;background:linear-gradient(130deg,#f2eaff,#edf6ff);border:1px solid #e3d8f5;border-radius:17px}
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.about-index{position:sticky;top:165px;padding:25px;background:#f8f5ff;border:1px solid #e7def5;border-radius:16px}
.about-index h2{font-size:23px;margin:10px 0 20px;letter-spacing:-.6px}.about-index nav{display:flex;flex-direction:column;gap:3px}.about-index nav a{display:flex;gap:10px;padding:9px 0;font-size:13px;line-height:1.55;color:#5c5276}.about-index nav a:hover{color:#6832bd}.about-index nav a>span{color:#967bbd;font-size:11px;padding-top:2px}.about-index .button{margin-top:22px;font-size:12px;padding:12px 15px;width:100%;justify-content:space-between}
.about-copy{min-width:0;max-width:820px}.about-chapter{padding-bottom:35px;margin-bottom:35px;border-bottom:1px solid #e7e2f0;scroll-margin-top:165px}.about-chapter:last-child{margin-bottom:0;border:0;padding-bottom:0}.about-chapter h2{font-size:30px;letter-spacing:-.8px;line-height:1.35;margin:12px 0 22px}.about-chapter p{font-size:17px;line-height:1.95;color:#536079;margin:0 0 19px}.about-chapter p:last-child{margin-bottom:0}.about-chapter p a{color:#6838bb;text-decoration:underline;text-underline-offset:3px}.about-module-list{background:#f5efff;border-radius:12px;padding:20px 25px 20px 45px;color:#603c95;margin:22px 0;font-size:17px;line-height:1.9}
@media(max-width:1000px){.about-reading-layout{grid-template-columns:230px minmax(0,1fr);gap:30px}.about-index{padding:20px}.about-highlights>div{padding:20px;gap:10px}}
@media(max-width:900px){.about-index{position:static}.about-chapter{scroll-margin-top:25px}}
@media(max-width:680px){.about-reading-layout{grid-template-columns:1fr;gap:30px;padding-top:30px}.about-highlights{gap:10px;margin-top:25px}.about-highlights>div{padding:16px 8px;flex-direction:column;gap:10px;text-align:center}.about-highlights strong{font-size:25px}.about-highlights div>span:not(.topic-icon){font-size:11px}.about-index nav{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px}.about-index nav a{font-size:12px}.about-index .button{width:auto;display:inline-flex;gap:16px}.about-chapter h2{font-size:25px}.about-chapter p{font-size:16px;line-height:1.9}.about-module-list{font-size:16px}.about-chapter{padding-bottom:27px;margin-bottom:27px}}
.student-login-button{background:#eee5ff;border:1px solid #c9b1ef;color:#5b2bb1;font-size:12px;padding:13px 15px;white-space:nowrap;gap:9px}
.student-login-button:hover{background:#e2d2ff}.student-login-button .icon{width:17px;height:17px}
@media(min-width:901px) and (max-width:1250px){.mega-header .brand-text{font-size:15px}.mega-header nav{gap:11px}.mega-header nav>a,.mega-item>summary{font-size:11px}.mega-header .nav{gap:12px}.mega-header .nav-cta,.student-login-button{font-size:11px;padding:11px}.header-actions{gap:7px}.header-actions .icon{display:none}}
@media(max-width:900px){.header-actions{margin-left:auto}.mega-header .menu-toggle{margin-left:0}}
@media(max-width:600px){.mega-header .nav{height:auto;min-height:116px;flex-wrap:wrap;padding-block:13px;row-gap:12px}.mega-header .menu-toggle{margin-left:auto}.header-actions{width:100%;order:3;margin:0;justify-content:center}.header-actions .button{flex:1;justify-content:center;font-size:12px;padding:11px 10px;margin:0}.mega-header nav{top:100%;max-height:calc(100dvh - 195px)}.student-login-button .icon{display:block}.utility-bar .container>div{justify-content:center}}