.cd-hero{margin-top:calc(-1 * var(--nav-h));padding:calc(var(--nav-h) + 40px) 0 56px;background:linear-gradient(90deg,#dcdfdf 0%,#d7dadb 55%,#c3c7c8 100%);position:relative;overflow:hidden}.cd-hero:before{content:"";pointer-events:none;background:url(/assets/video/hero-holo.webp) 50%/cover no-repeat;width:1100px;position:absolute;top:0;bottom:0;left:calc(max(50% - 600px,0px) + 461px);-webkit-mask-image:linear-gradient(90deg,#0000,#00000073 25%,#000000b3 50%,#00000014 100%);mask-image:linear-gradient(90deg,#0000,#00000073 25%,#000000b3 50%,#00000014 100%)}.cd-hero .container{z-index:1;position:relative}.cd-hero__inner{max-width:calc(100% - 400px)}.cd-hero__tags{flex-wrap:wrap;gap:8px;display:flex}.cd-chip{border:1px solid rgba(var(--c-lavender-rgb), .45);color:var(--c-navy);background:#ffffffb3;border-radius:999px;align-items:center;gap:5px;padding:4px 12px;font-size:13px;font-weight:600;display:inline-flex}.cd-chip--format{background:var(--grad);color:var(--c-white);border-color:#0000}.cd-chip--gold{background:var(--grad-gold);border-color:#0000}.cd-hero h1{letter-spacing:.03em;color:var(--c-navy);margin-top:16px;font-size:clamp(28px,3.4vw,42px);font-weight:900;line-height:1.3}.cd-hero__lead{max-width:620px;color:var(--c-navy);margin-top:14px;font-size:17px}.cd-hero__meta{color:var(--c-navy);flex-wrap:wrap;align-items:center;gap:8px 22px;margin-top:18px;font-size:14px;display:flex}.cd-stars{font-family:var(--font-num);font-weight:700}.cd-stars span{color:var(--c-gold);letter-spacing:1px}.cd-layout{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:48px;padding-bottom:96px;display:grid}.cd-main{grid-area:1/1;min-width:0}.cd-buy{top:calc(var(--nav-h) + 20px);z-index:2;border-radius:var(--radius);background:var(--c-white);border:1px solid rgba(var(--c-lavender-rgb), .35);box-shadow:0 30px 60px -30px rgba(var(--c-navy-rgb), .45);grid-area:1/2;margin-top:28px;position:sticky;overflow:hidden}.cd-buy__cover{aspect-ratio:16/9;position:relative;overflow:hidden}.cd-buy__cover img{object-fit:cover;width:100%;height:100%}.cd-buy__play{width:56px;height:56px;color:var(--c-teal);box-shadow:0 10px 24px -8px rgba(var(--c-navy-rgb), .5);background:#ffffffe6;border-radius:50%;place-items:center;margin:-28px 0 0 -28px;display:grid;position:absolute;top:50%;left:50%}.cd-buy__body{padding:22px 24px 24px}.cd-buy__price{font-family:var(--font-num);flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.cd-buy__price b{color:var(--c-gold-text);font-size:30px;font-weight:800}.cd-buy__price s{color:var(--c-muted);font-size:15px}.cd-buy__off{background:rgba(var(--c-gold-rgb), .15);color:var(--c-gold-text);border-radius:6px;padding:2px 8px;font-size:12px;font-weight:700}.buy-actions{gap:10px;margin-top:18px;display:grid}.buy-actions .btn{width:100%}.cd-info{border-top:1px solid var(--c-border);grid-template-columns:1fr 1fr;gap:14px 12px;margin-top:22px;padding-top:18px;display:grid}.cd-info dt{color:var(--c-muted);font-size:12px}.cd-info dd{color:var(--c-navy);margin-top:2px;font-size:14px;font-weight:700}.cd-buy__biz{border-radius:var(--radius-sm);background:var(--c-mist);color:var(--c-body);margin-top:18px;padding:12px 14px;font-size:13px}.cd-buy__biz a{color:var(--c-teal);margin-left:6px;font-weight:700}.cd-tabs{top:var(--nav-h);z-index:1;background:var(--c-page);border-bottom:1px solid var(--c-border);gap:4px;margin-top:8px;padding:10px 0;display:flex;position:sticky}.cd-tabs a{color:var(--c-navy);transition:background .25s var(--ease), color .25s var(--ease);border-radius:999px;padding:8px 16px;font-size:15px;font-weight:700}.cd-tabs a:hover{background:var(--c-mist);color:var(--c-teal)}.cd-sec{scroll-margin-top:calc(var(--nav-h) + 64px);padding-top:48px}.cd-sec__title{color:var(--c-navy);font-size:24px;font-weight:900}.cd-sec__title:after{content:"";background:linear-gradient(90deg, var(--c-indigo), var(--c-lavender));border-radius:3px;width:36px;height:3px;margin-top:10px;display:block}.cd-sec__note{color:var(--c-muted);margin-top:12px;font-size:14px}.cd-learn{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px;padding:0;list-style:none;display:grid}.cd-learn li{border-radius:var(--radius);background:linear-gradient(160deg, var(--c-white) 55%, rgba(var(--c-lavender-rgb), .1));border:1px solid rgba(var(--c-lavender-rgb), .35);color:var(--c-navy);align-items:center;gap:14px;padding:18px 20px;font-weight:600;display:flex}.cd-learn__no{font-family:var(--font-num);background:var(--grad);color:#0000;-webkit-background-clip:text;background-clip:text;flex:none;font-size:22px;font-weight:800}.cd-aud{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px;display:grid}.cd-aud__item{border-left:3px solid var(--c-lavender);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--c-mist);padding:18px 20px}.cd-aud__item h3{color:var(--c-navy);font-size:16px;font-weight:800}.cd-aud__item p{color:var(--c-body);margin-top:6px;font-size:14px}.cd-outline{border:1px solid var(--c-border);border-radius:var(--radius);margin-top:18px;overflow:hidden}.cd-ch+.cd-ch{border-top:1px solid var(--c-border)}.cd-ch summary{cursor:pointer;color:var(--c-navy);background:var(--c-white);transition:background .25s var(--ease);justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;font-weight:800;list-style:none;display:flex}.cd-ch summary::-webkit-details-marker{display:none}.cd-ch summary:hover{background:var(--c-mist)}.cd-ch summary small{color:var(--c-muted);align-items:center;gap:10px;font-size:13px;font-weight:500;display:flex}.cd-ch summary small:after{content:"";width:8px;height:8px;transition:transform .3s var(--ease);border-bottom:2px solid;border-right:2px solid;transform:rotate(45deg)translateY(-3px)}.cd-ch[open] summary small:after{transform:rotate(-135deg)translateY(-1px)}.cd-ch ul{background:var(--c-white);margin:0;padding:4px 20px 0;list-style:none}.cd-ch li{color:var(--c-body);align-items:center;gap:10px;padding:10px 0;font-size:15px;display:flex}.cd-ch li+li{border-top:1px dashed var(--c-border)}.cd-ch li>svg{color:var(--c-lavender);flex:none}.cd-ch__name{flex:1;min-width:0}.cd-ch__preview{background:rgba(var(--c-gold-rgb), .15);color:var(--c-gold-text);border-radius:6px;flex:none;padding:2px 8px;font-size:12px;font-weight:700}.cd-ch__min{font-family:var(--font-num);color:var(--c-muted);flex:none;font-size:13px}.cd-teacher{border-radius:var(--radius);border:1px solid rgba(var(--c-lavender-rgb), .35);gap:20px;margin-top:22px;padding:22px;display:flex}.cd-teacher__avatar{background:var(--grad);width:72px;height:72px;color:var(--c-white);border-radius:50%;flex:none;place-items:center;font-size:28px;font-weight:900;display:grid}.cd-teacher h3{color:var(--c-navy);font-size:18px;font-weight:800}.cd-teacher p{color:var(--c-body);margin-top:6px;font-size:15px}.cd-faq{margin-top:18px}.cd-faq details{border-bottom:1px solid var(--c-border)}.cd-faq summary{cursor:pointer;color:var(--c-navy);padding:16px 0;font-weight:700}.cd-faq summary:hover{color:var(--c-teal)}.cd-faq p{color:var(--c-body);padding:0 0 16px;font-size:15px}.cd-bar{display:none}@media (max-width:1023px){.cd-hero__inner{max-width:none}.cd-layout{grid-template-columns:minmax(0,1fr);gap:0}.cd-buy{grid-column:1;grid-template-columns:300px minmax(0,1fr);margin-top:28px;display:grid;position:static}.cd-buy__cover{aspect-ratio:auto;min-height:100%}.cd-main{grid-row:2}.cd-buy .buy-actions{display:none}.cd-bar{z-index:40;padding:10px 16px calc(10px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 -10px 30px -16px rgba(var(--c-navy-rgb), .35);background:#fffffff0;justify-content:space-between;align-items:center;gap:14px;display:flex;position:fixed;bottom:0;left:0;right:0}.cd-bar p{font-family:var(--font-num);flex-direction:column;line-height:1.2;display:flex}.cd-bar s{color:var(--c-muted);font-size:12px}.cd-bar b{color:var(--c-gold-text);font-size:20px;font-weight:800}.cd-bar .buy-actions{flex-direction:row-reverse;gap:8px;margin:0;display:flex}.cd-bar .btn{width:auto;height:44px;padding:0 18px}.cd-layout{padding-bottom:120px}}@media (max-width:640px){.cd-hero{padding:calc(var(--nav-h) + 24px) 0 36px}.cd-hero:before{opacity:.5;width:100%;left:30%}.cd-hero__lead{font-size:15px}.cd-buy{grid-template-columns:minmax(0,1fr)}.cd-buy__cover{aspect-ratio:16/9}.cd-learn,.cd-aud{grid-template-columns:minmax(0,1fr)}.cd-tabs{margin:8px -16px 0;padding:10px 16px;overflow-x:auto}.cd-tabs a{flex:none;padding:8px 12px;font-size:14px}.cd-bar .buy-actions .btn--ghost{display:none}.cd-teacher{flex-direction:column;align-items:flex-start}}@media (max-width:1023px){body:has(.cd-bar) :is(.float-line,.fab,.to-top,.chat-launch){margin-bottom:68px}}