.sa-root{--dir: 1;--sa-paper: #f7f2e6;--sa-ink: #1a0b2e;--sa-night: #0b0f2a;background:#0d1233}.sa-root[dir=rtl]{--dir: -1}.sa-root[dir=rtl] :is(.sa-eyebrow,.sa-chip,.sa-select,.sa-tab,.sa-board__title,h1,h2,h3,.sa-btn){letter-spacing:0!important}.sa-root[dir=rtl] .sa-arrow{transform:scaleX(-1)}.sa-page__of,.sa-page__num,.sa-note__no,.sa-split__badge b,.sa-split__no,.sa-lesson__no{direction:ltr;unicode-bidi:isolate}.sa-grad{background-image:linear-gradient(135deg,#fff4f4 0%,var(--im-red) 56%,#ffc400 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;filter:drop-shadow(0 4px 18px rgba(0,0,0,.35))}.sa-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.sa-head{display:grid;gap:14px;justify-items:center;text-align:center}.sa-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.78rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:#ffffffe0}.sa-eyebrow>span{width:26px;height:1px;background:#e6394699}.sa-h2{margin:0;max-width:26ch;font-size:clamp(1.8rem,3.4vw,2.9rem);font-weight:900;line-height:1.1}.sa-sub{margin:0;max-width:60ch;color:#ffffffb8;font-size:clamp(.92rem,1.1vw,1.02rem);line-height:1.65}.sa-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 28px;border-radius:14px;background:linear-gradient(135deg,#e63946,#ff6b9d);color:#fff;font-weight:700;font-size:1.02rem;text-decoration:none;box-shadow:0 15px 40px #e6394659;transition:transform .2s ease}.sa-btn:hover{transform:translateY(-2px)}.sa-hero{--a: 0;--fade: 0;--sweep: 0;height:150vh}.sa-hero__stage{background:var(--sa-night)}.sa-hero__haze{position:absolute;inset:-6%;width:112%;height:112%;object-fit:cover;filter:blur(30px) saturate(1.2);opacity:calc(.5 - var(--a) * .5);transform:scale(1.08)}.sa-slats{position:absolute;inset:0;display:flex;direction:ltr}.sa-slat{position:relative;flex:1 1 0;min-width:0;overflow:hidden;border-radius:calc((1 - var(--a)) * 18px);transform:translate3d(0,calc(var(--o) * (1 - var(--a)) * 1vh),0) scale(calc(1 - (1 - var(--a)) * .12),calc(1 - (1 - var(--a)) * .22));box-shadow:0 30px 60px rgba(0,0,0,calc((1 - var(--a)) * .45))}.sa-hero__whole{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:clamp(0,calc((var(--a) - .94) / .05),1);pointer-events:none}.sa-slat img{position:absolute;top:0;height:100%;max-width:none;object-fit:cover;display:block}.sa-slat__own{left:0;width:100%;transform:scale(calc(1.25 - var(--a) * .25)) scaleX(var(--flip, 1))}.sa-slat__piece{left:calc(var(--k) * -100%);width:700%;opacity:clamp(0,calc((var(--a) - .4) / .45),1)}.sa-slat:after{content:"";position:absolute;inset:0;background:var(--sa-night);opacity:calc((1 - var(--a)) * .34)}.sa-slat:nth-child(2n):after{opacity:calc((1 - var(--a)) * .12)}.sa-hero__sweep{position:absolute;top:-20%;bottom:-20%;left:0;width:26vw;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);mix-blend-mode:overlay;opacity:calc(min(var(--sweep),1 - var(--sweep))*2);transform:translate(calc(-30vw + var(--sweep) * 140vw)) skew(-16deg);pointer-events:none}.sa-hero__scrim{position:absolute;inset:0;background:radial-gradient(ellipse 62% 58% at 50% 54%,#0b0f2adb,#0b0f2a8c 60%,#0b0f2a2e),linear-gradient(180deg,#0b0f2ab3,#0b0f2a00 22%);opacity:calc(1 - var(--fade) * .92);pointer-events:none}.sa-hero__copy{position:absolute;left:50%;top:calc(50% + var(--im-nav) / 2);width:min(900px,calc(100vw - 48px));display:grid;justify-items:center;gap:18px;text-align:center;opacity:calc(1 - var(--fade));transform:translate(-50%,calc(-50% - var(--fade) * 50px))}.sa-hero__copy.is-gone{visibility:hidden;pointer-events:none}.sa-hero__copy>*{animation:saRise .9s cubic-bezier(.2,.8,.2,1) both}.sa-hero__copy>:nth-child(2){animation-delay:.1s}.sa-hero__copy>:nth-child(3){animation-delay:.2s}.sa-hero__copy>:nth-child(4){animation-delay:.3s}@keyframes saRise{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}.sa-hero__icon{width:92px;height:92px;display:grid;place-items:center;border-radius:24px;background:linear-gradient(135deg,#e63946,#ff6b9d);box-shadow:0 30px 80px #e6394673;color:#fff;font-size:46px}.sa-hero__title{margin:0;font-size:clamp(2.3rem,5vw,4.2rem);font-weight:900;line-height:1.03;letter-spacing:-.04em}.sa-hero__desc{margin:0;max-width:62ch;color:#fffc;font-size:clamp(.98rem,1.2vw,1.1rem);line-height:1.7}.sa-cal{--swing: 0;--left: 6;height:600vh}.sa-cal__stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:clamp(24px,5vw,80px);padding:calc(var(--im-nav) + 24px) clamp(24px,6vw,96px) 24px;background:radial-gradient(ellipse at 72% 55%,#2a2f6e,#141a4b 55%,#0b0f2a)}.sa-cal__glow{position:absolute;right:8%;top:30%;width:40vw;height:40vw;border-radius:50%;background:radial-gradient(circle,rgba(230,57,70,.16),transparent 65%);pointer-events:none}.sa-root[dir=rtl] .sa-cal__glow{right:auto;left:8%}.sa-cal__kicker{display:none}.sa-cal__side{position:relative;display:grid;gap:28px;align-content:center}.sa-cal__head.sa-head{justify-items:start;text-align:start}.sa-cal__head .sa-h2{font-size:clamp(1.8rem,3vw,2.6rem)}.sa-steps{display:grid;gap:4px;justify-items:start}.sa-step{display:inline-flex;align-items:center;gap:12px;padding:6px 14px 6px 6px;border:none;border-radius:999px;background:transparent;color:#ffffff8c;font:inherit;font-size:.95rem;font-weight:700;text-align:start;cursor:pointer;transition:background .3s ease,color .3s ease}.sa-root[dir=rtl] .sa-step{padding:6px 6px 6px 14px}.sa-step:hover{color:#fff}.sa-step__dot{position:relative;flex:0 0 auto;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;border:1.5px solid color-mix(in srgb,var(--c) 60%,transparent);color:var(--c);font-size:14px;transition:background .3s ease,color .3s ease,transform .4s cubic-bezier(.2,.8,.2,1.4)}.sa-step__dot>svg{grid-area:1 / 1;transition:opacity .25s ease,transform .35s ease}.sa-step__tick{opacity:0;transform:scale(.3)}.sa-step.is-on{background:#ffffff14;color:#fff}.sa-step.is-on .sa-step__dot{background:var(--c);color:var(--sa-night);transform:scale(1.08)}.sa-step.is-done{color:#ffffffb8}.sa-step.is-done .sa-step__dot{background:color-mix(in srgb,var(--c) 22%,transparent)}.sa-step.is-done .sa-step__icon{opacity:0;transform:scale(.3)}.sa-step.is-done .sa-step__tick{opacity:1;transform:none}.sa-cal__wall{position:relative;display:grid;place-items:center;height:100%}.sa-pad{position:relative;width:min(420px,100%);height:min(540px,calc(100svh - var(--im-nav) - 120px));margin-top:56px;transform-origin:50% -60px;transform:rotate(calc(var(--swing) * 2.4deg * var(--dir)));--hang: 37deg;--hang-len: 106px}.sa-pad__string{position:absolute;left:50%;top:-66px;width:14px;height:14px;margin-left:-7px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff,#9aa0c0 60%,#5b6184);box-shadow:0 3px 6px #00000080;z-index:31}.sa-pad__string:before,.sa-pad__string:after{content:"";position:absolute;left:7px;top:7px;width:var(--hang-len);height:2px;background:#ffffff73;transform-origin:0 50%;transform:rotate(var(--hang))}.sa-pad__string:after{transform:rotate(calc(180deg - var(--hang)))}.sa-pad__bind{position:absolute;top:0;left:-10px;right:-10px;height:50px;border-radius:12px 12px 6px 6px;background:linear-gradient(180deg,#e0404c,#b3202c 55%,#86151f);box-shadow:0 10px 20px #0006,inset 0 1px #ffffff4d;z-index:30}.sa-pad__bind i{position:absolute;top:17px;left:calc(30% - 5px);width:16px;height:16px;border-radius:50%;background:#1b1440;box-shadow:inset 0 2px 3px #000000b3}.sa-pad__bind i+i{left:auto;right:calc(30% - 5px)}.sa-pad__stub{position:absolute;top:48px;left:0;right:0;height:12px;background:#ece5d4;-webkit-mask:conic-gradient(from -45deg at bottom,#0000,#000 1deg 89deg,#0000 90deg) 50% / 12px 100%;mask:conic-gradient(from -45deg at bottom,#0000,#000 1deg 89deg,#0000 90deg) 50% / 12px 100%;z-index:29}.sa-pad__pages{position:absolute;inset:46px 0 0;perspective:1500px;perspective-origin:50% 0}.sa-pad__edge{position:absolute;inset:46px 4px 0;border-radius:4px 4px 12px 12px;background:repeating-linear-gradient(0deg,#cfc6b2 0 1px,#efe8d8 1px 3px);transform:translateY(calc(var(--left) * 2.4px));box-shadow:0 16px 30px #0006}.sa-page{--peel: 0;--fall: 0;position:absolute;inset:0;z-index:calc(20 - var(--k));display:flex;flex-direction:column;gap:10px;padding:30px 30px 26px;border-radius:3px 3px 12px 12px;background:repeating-linear-gradient(180deg,transparent 0 33px,rgba(26,11,46,.05) 33px 34px),linear-gradient(180deg,#fbf8f0 0%,var(--sa-paper) 100%);color:var(--sa-ink);transform-origin:50% 0;transform:translate3d(calc(var(--fall) * -14vw * var(--dir)),calc(var(--fall) * 118vh),0) rotate(calc((var(--peel) * -3deg - var(--fall) * 24deg) * var(--dir))) rotateX(calc(var(--peel) * 32deg - var(--fall) * 12deg));opacity:clamp(0,calc((1 - var(--fall)) * 4),1)}.sa-page.is-gone{visibility:hidden}.sa-page:before{content:"";position:absolute;top:10px;left:14px;right:14px;height:4px;background:radial-gradient(circle,rgba(26,11,46,.28) 1.4px,transparent 1.9px) 0 50% / 9px 4px repeat-x}.sa-page__shade{position:absolute;inset:0;z-index:-1;border-radius:inherit;box-shadow:0 40px 70px #0000008c;opacity:var(--peel);pointer-events:none}.sa-page__shade:after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(180deg,#1a0b2e00 30%,#1a0b2e38)}.sa-page__band{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:2px solid var(--c)}.sa-page__icon{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:color-mix(in srgb,var(--c) 20%,var(--sa-paper));color:color-mix(in srgb,var(--c) 72%,var(--sa-ink));font-size:19px}.sa-page__of{font:800 .8rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;color:#1a0b2e8c}.sa-page__num{flex:1 1 auto;display:flex;align-items:center;min-height:0;font-size:clamp(6.5rem,11vw,10rem);font-weight:900;line-height:.86;letter-spacing:-.05em;color:color-mix(in srgb,var(--c) 80%,var(--sa-ink))}.sa-page .sa-page__title.im-jcap{font-size:clamp(1.45rem,2.1vw,1.95rem);line-height:1.1;letter-spacing:-.02em;color:var(--sa-ink);text-shadow:none}.sa-page__desc{margin:0;color:#1a0b2ebd;font-size:.98rem;line-height:1.6;opacity:0;transform:translateY(10px);transition:opacity .5s ease .3s,transform .6s cubic-bezier(.2,.8,.2,1) .3s}.sa-page.is-on .sa-page__desc{opacity:1;transform:none}.sa-mail{height:420vh}.sa-mail__stage{--cy: calc(50% + 44px) ;--s0: .72;--env-w: min(640px, calc(100vw - 80px) );--env-h: calc(var(--env-w) * .56);--env-y: 124px;background:radial-gradient(ellipse at 50% 62%,#2b2463,#151a4d 55%,#0b0f2a)}.sa-mail__glow{position:absolute;left:50%;top:58%;width:70vw;height:50vh;transform:translate(-50%,-50%);background:radial-gradient(ellipse,rgba(255,184,0,.12),transparent 65%);pointer-events:none}.sa-mail__top{position:absolute;top:calc(var(--im-nav) + 14px);left:0;right:0;z-index:6;display:grid;justify-items:center;gap:10px;opacity:0;transform:translateY(-10px);transition:opacity .4s ease,transform .5s ease;pointer-events:none}.sa-mail.is-run .sa-mail__top{opacity:1;transform:none;pointer-events:auto}.sa-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.sa-tab{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 14px;border:1px solid rgba(255,255,255,.22);border-radius:999px;background:#ffffff0d;color:#ffffffb8;font:inherit;font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;cursor:pointer;transition:background .3s ease,color .3s ease,border-color .3s ease}.sa-tab.is-on{background:var(--pc);border-color:transparent;color:var(--sa-ink)}.sa-mail__head{position:absolute;left:50%;top:calc(50% + var(--im-nav) / 2);width:min(880px,calc(100vw - 32px));transform:translate(-50%,-50%);transition:opacity .45s ease,transform .6s cubic-bezier(.2,.8,.2,1)}.sa-mail.is-run .sa-mail__head{opacity:0;transform:translate(-50%,calc(-50% - 40px));pointer-events:none}.sa-mail__item{--arr: 0;--flap: 0;--rise: 0;--drop: 0;--leave: 0;position:absolute;inset:0;pointer-events:none;perspective:1600px}.sa-mail__item.is-hidden{visibility:hidden}.sa-env{position:absolute;left:50%;top:calc(var(--cy) + var(--env-y));width:var(--env-w);height:var(--env-h);transform:translate(-50%,-50%) translateY(calc((1 - var(--arr)) * 80vh + var(--drop) * 70vh)) rotate(calc(((1 - var(--arr)) * 6deg + var(--drop) * 5deg) * var(--dir)));opacity:calc(1 - var(--drop))}.sa-env__back{z-index:1;border-radius:10px;background:linear-gradient(180deg,color-mix(in srgb,var(--pc) 30%,#cfc2a4),color-mix(in srgb,var(--pc) 18%,#bfb293));box-shadow:0 40px 70px #00000080}.sa-env__pocket{z-index:3;border-radius:10px;background:linear-gradient(to top right,transparent 49.4%,rgba(26,11,46,.08) 49.8%,transparent 50.6%) left bottom / 50% 100% no-repeat,linear-gradient(to top left,transparent 49.4%,rgba(26,11,46,.08) 49.8%,transparent 50.6%) right bottom / 50% 100% no-repeat,linear-gradient(180deg,#f3ecdc,#e6dcc5);clip-path:polygon(0 0,50% 52%,100% 0,100% 100%,0 100%)}.sa-env__flap{z-index:4;transform-origin:50% 0;transform:translate(-50%,-50%) translateY(calc((1 - var(--arr)) * 80vh + var(--drop) * 70vh)) rotate(calc(((1 - var(--arr)) * 6deg + var(--drop) * 5deg) * var(--dir))) rotateX(calc(var(--flap) * -176deg))}.sa-mail__item.is-open .sa-env__flap,.sa-mail__item.is-out .sa-env__pocket{z-index:1}.sa-env__tri{position:absolute;inset:0;clip-path:polygon(0 0,100% 0,50% 60%);background:linear-gradient(180deg,color-mix(in srgb,var(--pc) 40%,#e9dfc8),color-mix(in srgb,var(--pc) 22%,#ddd1b6))}.sa-env__seal{position:absolute;left:50%;top:calc(58% - 30px);width:56px;height:56px;margin-left:-28px;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ff6b74,#c21f2d 55%,#8d121d);box-shadow:0 4px 10px #00000059,inset 0 0 0 4px #0000001f;color:#ffe9d6;font-size:24px;opacity:clamp(0,calc(1 - var(--flap) * 3),1);transform:scale(calc(1 + var(--flap) * .6)) rotate(calc(var(--flap) * 40deg))}.sa-letter{position:absolute;left:50%;top:var(--cy);z-index:2;width:min(800px,calc(100vw - 64px));display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:30px;padding:30px 32px;overflow:hidden;border-radius:12px;background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--pc) 18%,transparent),transparent 40%),linear-gradient(180deg,#fdfaf2,var(--sa-paper));border-top:6px solid var(--pc);color:var(--sa-ink);box-shadow:0 34px 80px #00000080;transform:translate(-50%,-50%) translate(calc(var(--leave) * -64vw * var(--dir)),calc((1 - var(--rise)) * (var(--env-y) + (1 - var(--arr)) * 80vh) - var(--leave) * 8vh)) rotate(calc(var(--leave) * -9deg * var(--dir))) scale(calc(var(--s0) + (1 - var(--s0)) * var(--rise)));opacity:calc((1 - var(--leave)) * clamp(0,var(--flap) * 12,1))}.sa-mail__item.is-live .sa-letter{pointer-events:auto}.sa-letter__mark{position:absolute;right:-18px;bottom:-26px;font-size:170px;color:color-mix(in srgb,var(--pc) 12%,transparent);pointer-events:none}.sa-root[dir=rtl] .sa-letter__mark{right:auto;left:-18px}.sa-letter__info,.sa-letter__side{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:12px}.sa-letter__side{justify-content:space-between;align-items:stretch}.sa-chip{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--pc) 55%,transparent);background:color-mix(in srgb,var(--pc) 16%,transparent);color:color-mix(in srgb,var(--pc) 70%,var(--sa-ink));font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.sa-chip svg{font-size:11px}.sa-letter__title{margin:0;font-size:clamp(1.4rem,2vw,1.8rem);font-weight:900;line-height:1.12}.sa-letter__sum{margin:0;color:#1a0b2eb8;font-size:.95rem;line-height:1.6}.sa-letter__price{display:grid;gap:5px;margin-top:auto}.sa-letter__price strong{color:color-mix(in srgb,var(--pc) 78%,var(--sa-ink));font-size:clamp(1.9rem,3vw,2.5rem);font-weight:900;line-height:1;font-variant-numeric:tabular-nums}.sa-root[dir=rtl] .sa-letter__price strong{direction:ltr;justify-self:end}.sa-letter__meta{font-size:.86rem;font-weight:700;color:#1a0b2ecc}.sa-letter__tax{font-size:.76rem;color:#1a0b2e8c}.sa-pager{display:grid;gap:12px}.sa-pager__list{margin:0;padding:0;list-style:none;display:grid;gap:11px;animation:saPageDown .28s ease}.sa-pager__list--up{animation-name:saPageUp}@keyframes saPageDown{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@keyframes saPageUp{0%{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}.sa-pager__list li{display:flex;align-items:flex-start;gap:10px;font-size:.92rem;line-height:1.4}.sa-pager__list i{flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;border-radius:50%;border:1px solid color-mix(in srgb,var(--pc) 55%,transparent);background:color-mix(in srgb,var(--pc) 18%,transparent);color:color-mix(in srgb,var(--pc) 70%,var(--sa-ink));font-style:normal;font-size:11px;font-weight:900}.sa-pager__nav{display:flex;justify-content:space-between}.sa-pager__btn{width:38px;height:38px;border:none;border-radius:50%;background:linear-gradient(135deg,var(--pc),#ff6b9d);color:#fff;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 10px 22px #00000040}.sa-select{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;min-height:52px;padding:0 16px;border:1px solid color-mix(in srgb,var(--pc) 55%,transparent);border-radius:14px;background:color-mix(in srgb,var(--pc) 16%,transparent);color:var(--sa-ink);font:inherit;font-weight:800;font-size:.92rem;letter-spacing:.08em;cursor:pointer;transition:transform .2s ease}.sa-select:hover{transform:translateY(-2px)}.sa-select.is-pop{border:none;color:#fff;background:linear-gradient(135deg,#e63946,#ff6b9d)}.sa-board{height:160vh}.sa-board__stage{display:grid;place-items:center;padding:calc(var(--im-nav) + 52px) 24px 24px;background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.05) 0 2px,transparent 3px) 0 0 / 23px 19px,radial-gradient(circle at 70% 60%,rgba(0,0,0,.12) 0 2px,transparent 3px) 0 0 / 17px 21px,radial-gradient(ellipse at 50% 40%,#9a6a43,#7a4f2e 60%,#5d3a20);box-shadow:inset 0 0 0 14px #3f2714,inset 0 0 60px #00000080}.sa-board__title{position:absolute;top:calc(var(--im-nav) + 18px);left:50%;margin:0;padding:7px 16px;border-radius:6px;background:var(--sa-paper);color:var(--sa-ink);font-size:.78rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;white-space:nowrap;box-shadow:0 8px 18px #00000059;opacity:0;transform:translate(-50%,-20px) rotate(-2deg);transition:opacity .5s ease,transform .6s cubic-bezier(.2,.8,.2,1.3)}.sa-board.is-in .sa-board__title{opacity:1;transform:translate(-50%) rotate(-2deg)}.sa-board__grid{width:min(1160px,100%);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:stretch}.sa-board__grid>*{--pop-to: rotate(var(--rot))}.sa-board:not(.is-in) .sa-board__grid>*{pointer-events:none}.sa-note{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:24px 22px 22px;border-radius:6px;background:linear-gradient(180deg,#fdfaf2,var(--sa-paper));border-top:5px solid var(--pc);color:var(--sa-ink);box-shadow:0 22px 40px #00000073}.sa-note.is-pop{box-shadow:0 22px 40px #00000073,0 0 0 3px var(--pc)}.sa-note__pin{position:absolute;top:-12px;left:50%;width:22px;height:22px;margin-left:-11px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ff8d95,#d42a38 60%,#8d121d);box-shadow:0 6px 8px #00000073}.sa-note__top{width:100%;display:flex;align-items:center;justify-content:space-between}.sa-note__no{font:900 1.05rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;color:#1a0b2e66}.sa-note__title{margin:4px 0 0;font-size:1.4rem;font-weight:900;line-height:1.12}.sa-note__price{color:color-mix(in srgb,var(--pc) 78%,var(--sa-ink));font-size:2.1rem;font-weight:900;line-height:1;font-variant-numeric:tabular-nums}.sa-root[dir=rtl] .sa-note__price{direction:ltr;text-align:right}.sa-note__meta{font-size:.86rem;font-weight:700;color:#1a0b2ecc}.sa-note__tax{font-size:.76rem;color:#1a0b2e8c}.sa-note__list{flex:1;width:100%;margin:6px 0 8px;padding:10px 0 0;list-style:none;display:grid;align-content:start;gap:7px;border-top:1px dashed rgba(26,11,46,.2)}.sa-note__list li{position:relative;padding-inline-start:18px;color:#1a0b2ed1;font-size:.84rem;line-height:1.35}.sa-note__list li:before{content:"✓";position:absolute;inset-inline-start:0;color:color-mix(in srgb,var(--pc) 75%,var(--sa-ink));font-weight:900}.sa-note__tags{display:none}.sa-note__btn{margin-top:auto}.sa-split{position:relative;padding:calc(var(--im-nav) + 80px) clamp(16px,5vw,72px) 14vh;background:linear-gradient(180deg,#0b0f2a,#141a4b 45%,#0d1233)}.sa-split__head{margin:0 auto 10vh;max-width:920px}.sa-split__grid{width:min(1240px,100%);margin:0 auto;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(28px,5vw,80px)}.sa-split__media{position:relative}.sa-split__frame{--c: #e63946;position:sticky;top:calc(var(--im-nav) + 28px);height:calc(100svh - var(--im-nav) - 56px);overflow:hidden;border-radius:26px;background:var(--sa-night);box-shadow:0 40px 80px #00000080,0 0 0 1px color-mix(in srgb,var(--c) 45%,transparent);transition:box-shadow .5s ease}.sa-split__img{--w: 0;position:absolute;inset:0;z-index:var(--k);margin:0;clip-path:inset(calc((1 - var(--w)) * 100%) 0 0 0)}.sa-split__fallback{position:absolute;inset:0;display:grid;place-items:center;background:radial-gradient(circle at 50% 45%,color-mix(in srgb,var(--c) 45%,transparent),transparent 60%),linear-gradient(160deg,#232b6a,#0b0f2a);color:#fff;font-size:clamp(5rem,12vw,9rem)}.sa-split__fallback svg{filter:drop-shadow(0 20px 40px color-mix(in srgb,var(--c) 60%,transparent))}.sa-split__img img{position:relative;width:100%;height:100%;object-fit:cover;display:block;transform:scale(calc(1.2 - var(--w) * .2))}.sa-split__shade{position:absolute;inset:0;z-index:10;background:linear-gradient(0deg,#0b0f2abf,#0b0f2a00 35%);pointer-events:none}.sa-split__badges{position:absolute;inset-inline-start:22px;bottom:22px;z-index:11;display:grid}.sa-split__badge{grid-area:1 / 1;display:inline-flex;align-items:center;gap:10px;justify-self:start;padding:10px 16px;border-radius:999px;background:#0b0f2abf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;font-size:18px;opacity:0;transform:translateY(10px);transition:opacity .35s ease,transform .45s ease}.sa-split__badge svg{color:var(--c)}.sa-split__badge b{font:800 .85rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.1em}.sa-split__badge b i{font-style:normal;opacity:.5}.sa-split__badge.is-on{opacity:1;transform:none}.sa-split__block{min-height:86svh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:14px;opacity:.25;transform:translate(calc(26px * var(--dir)));transition:opacity .5s ease,transform .6s cubic-bezier(.2,.8,.2,1)}.sa-split__block.is-on{opacity:1;transform:none}.sa-split__icon{width:56px;height:56px;display:grid;place-items:center;border-radius:16px;border:1px solid color-mix(in srgb,var(--c) 45%,transparent);background:color-mix(in srgb,var(--c) 16%,transparent);color:var(--c);font-size:22px}.sa-split__no{font-size:clamp(3rem,6vw,5rem);font-weight:900;line-height:.9;color:transparent;-webkit-text-stroke:1.5px color-mix(in srgb,var(--c) 70%,transparent)}.sa-split__title{margin:0;font-size:clamp(1.6rem,2.6vw,2.3rem);font-weight:900;line-height:1.12}.sa-split__desc{margin:0;max-width:44ch;color:#ffffffc2;font-size:clamp(.98rem,1.2vw,1.1rem);line-height:1.7}.sa-chalk{height:380vh}.sa-chalk__stage{display:grid;place-items:center;padding:calc(var(--im-nav) + 18px) clamp(12px,3vw,40px) 26px;background:radial-gradient(ellipse at 50% 30%,#1d2458,#0b0f2a 80%)}.sa-board-bb{position:relative;width:min(1200px,100%);height:100%;max-height:720px;display:grid;grid-template-rows:auto minmax(0,1fr);gap:18px;padding:26px clamp(20px,3vw,44px) 30px;border:14px solid #6b4526;border-radius:14px;background:radial-gradient(ellipse at 30% 20%,#2f5a45,#214536 55%,#183428);box-shadow:inset 0 0 70px #0000008c,0 30px 60px #00000080,0 0 0 2px #3f2714;color:#ffffffeb}.sa-board-bb__dust{position:absolute;inset:0;background:radial-gradient(ellipse 22% 12% at 18% 72%,rgba(255,255,255,.06),transparent),radial-gradient(ellipse 30% 10% at 76% 22%,rgba(255,255,255,.05),transparent),radial-gradient(ellipse 18% 16% at 62% 80%,rgba(255,255,255,.04),transparent);pointer-events:none}.sa-chalk__head{--p-cap: 0;--pd: 0;position:relative;display:grid;justify-items:center;gap:8px;text-align:center}.sa-chalk__head .sa-eyebrow>span{background:#ffffff73}.sa-chalk__title.im-caption,.sa-lesson__title.im-caption{gap:.1em .28em;font-weight:800;line-height:1.15;text-shadow:0 0 1px rgba(255,255,255,.7),0 0 10px rgba(255,255,255,.14)}.sa-chalk__title.im-caption{justify-content:center;max-width:30ch;font-size:clamp(1.6rem,2.9vw,2.5rem)}.sa-chalk__sub{margin:0;max-width:76ch;color:#ffffffb8;font-size:.94rem;line-height:1.6;opacity:var(--pd);transform:translateY(calc((1 - var(--pd)) * 8px))}.sa-chalk__grid{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));border-top:2px dashed rgba(255,255,255,.2)}.sa-lesson{--p-cap: 0;--pd: 0;--pl: 0;display:flex;flex-direction:column;justify-content:center;gap:8px;padding:14px clamp(14px,2vw,28px);transition:background .4s ease}.sa-lesson:nth-child(odd){border-inline-end:2px dashed rgba(255,255,255,.2)}.sa-lesson:nth-child(-n+2){border-bottom:2px dashed rgba(255,255,255,.2)}.sa-lesson.is-cur{background:#ffffff09}.sa-lesson__top{display:flex;align-items:center;gap:12px}.sa-lesson__icon{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;border:2px dashed rgba(255,255,255,.55);color:var(--c);font-size:18px;opacity:calc(.15 + var(--pl) * .85);transform:scale(calc(.7 + var(--pl) * .3)) rotate(calc((1 - var(--pl)) * -40deg))}.sa-lesson__no{font:800 .9rem/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;color:#ffffff80}.sa-lesson__title.im-caption{font-size:clamp(1.15rem,1.7vw,1.45rem)}.sa-lesson__line{display:block;width:70px;height:3px;border-radius:3px;background:var(--c);transform-origin:left center;transform:scaleX(var(--pd))}.sa-root[dir=rtl] .sa-lesson__line{transform-origin:right center}.sa-lesson__desc{margin:0;max-width:56ch;color:#fffc;font-size:.9rem;line-height:1.55;opacity:var(--pd);transform:translateY(calc((1 - var(--pd)) * 8px))}.sa-board-bb__tray{position:absolute;left:6%;right:6%;bottom:-26px;height:12px;border-radius:3px;background:linear-gradient(180deg,#8a5a33,#5a3a1f);box-shadow:0 6px 12px #0006}.sa-board-bb__chalk{position:absolute;left:12%;bottom:10px;width:46px;height:9px;border-radius:4px;background:linear-gradient(180deg,#fff,#d9d9d9);transform:rotate(-4deg)}.sa-board-bb__chalk--b{left:17%;width:30px;background:linear-gradient(180deg,#ffd9dc,#e8a7ad);transform:rotate(3deg)}.sa-board-bb__eraser{position:absolute;right:14%;bottom:10px;width:72px;height:18px;border-radius:4px;background:linear-gradient(180deg,#7d5534 0 55%,#3a3a46 55%);box-shadow:0 3px 6px #0006}.sa-close{--u: 0;height:170vh}.sa-close__stage{display:grid;place-items:center;padding-top:var(--im-nav);background:var(--sa-night)}.sa-close__bg{position:absolute;inset:0;overflow:hidden}.sa-close__bg img{width:100%;height:100%;object-fit:cover;display:block;transform:scale(calc(1.14 - var(--p) * .14))}.sa-close__bg:after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,#0b0f2a8c,#0b0f2adb 75%),#0b0f2a4d}.sa-dip{position:relative;width:min(680px,calc(100vw - 56px))}.sa-dip__paper{position:relative;padding:58px 52px 64px;border-radius:4px;background:radial-gradient(ellipse at 50% 0,rgba(201,163,90,.16),transparent 60%),linear-gradient(180deg,#fdfaf2,var(--sa-paper) 60%,#efe6d2);box-shadow:0 30px 70px #0000008c;color:var(--sa-ink);text-align:center;clip-path:inset(calc((1 - var(--u)) * 50%) -40px)}.sa-dip__paper:before,.sa-dip__paper:after{content:"";position:absolute;inset:14px;border:2px solid rgba(201,163,90,.85);pointer-events:none}.sa-dip__paper:after{inset:20px;border-width:1px;border-color:#c9a35a8c}.sa-dip__msg{position:relative;z-index:1;display:grid;justify-items:center;gap:18px}.sa-dip .sa-dip__title.im-jcap{justify-content:center;font-size:clamp(1.9rem,3.8vw,3rem);line-height:1.08;letter-spacing:-.03em;color:var(--sa-ink);text-shadow:none}.sa-dip__desc{margin:0;max-width:46ch;color:#1a0b2ebd;font-size:clamp(.98rem,1.2vw,1.08rem);line-height:1.7}.sa-btn--big{min-height:56px;padding:0 34px;font-size:1.08rem}.sa-dip__roll{position:absolute;inset:0 -24px;pointer-events:none}.sa-dip__roll:before{content:"";position:absolute;left:0;right:0;height:30px;border-radius:15px;background:radial-gradient(circle at 12px 50%,#f3dfae 0 6px,transparent 7px),radial-gradient(circle at calc(100% - 12px) 50%,#f3dfae 0 6px,transparent 7px),linear-gradient(180deg,#f0d9a2,#c4964a 45%,#7a5520);box-shadow:0 10px 20px #00000073}.sa-dip__roll--top:before{top:-15px}.sa-dip__roll--bottom:before{bottom:-15px}.sa-dip__roll--top{transform:translateY(calc((1 - var(--u)) * 50%))}.sa-dip__roll--bottom{transform:translateY(calc((1 - var(--u)) * -50%))}.sa-dip__seal{position:absolute;right:40px;bottom:26px;width:76px;height:76px;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ff6b74,#c21f2d 55%,#8d121d);box-shadow:0 0 0 4px #e8c77a,0 8px 18px #00000059;color:#ffe9d6;font-size:32px;opacity:0;transform:scale(.2) rotate(-40deg);transition:opacity .3s ease,transform .6s cubic-bezier(.2,.8,.2,1.5);pointer-events:none}.sa-root[dir=rtl] .sa-dip__seal{right:auto;left:40px}.sa-close.is-sealed .sa-dip__seal{opacity:1;transform:rotate(-10deg)}@media(max-width:1100px)and (min-width:768px){.sa-cal__stage{gap:28px;padding-inline:28px}.sa-letter{grid-template-columns:1fr;gap:16px;width:min(560px,calc(100vw - 64px))}.sa-mail__stage{--env-w: min(520px, calc(100vw - 80px) );--s0: .62;--env-y: 180px}.sa-board__grid{gap:16px}.sa-note{padding:20px 16px}}@media(max-width:767px){.sa-btn{width:100%;padding:0 18px}.sa-hero{height:130vh}.sa-hero__copy{gap:14px;width:calc(100vw - 32px)}.sa-hero__icon{width:72px;height:72px;border-radius:20px;font-size:36px}.sa-hero__title{font-size:clamp(2rem,8.6vw,2.7rem)}.sa-hero__desc{font-size:.95rem;line-height:1.65}.sa-hero__scrim{background:linear-gradient(180deg,#0b0f2ac7,#0b0f2ab8,#0b0f2acc)}.sa-hero__sweep{width:50vw}.sa-cal{height:620vh}.sa-cal__stage{display:block;padding:0}.sa-cal__kicker{display:flex;justify-content:center;position:absolute;top:calc(var(--im-nav) + 12px);left:16px;right:16px;opacity:0;transition:opacity .4s ease .15s}.sa-cal.is-run .sa-cal__kicker{opacity:1}.sa-cal__side{position:static;display:block}.sa-cal__head.sa-head{position:absolute;top:calc(var(--im-nav) + 22px);left:16px;right:16px;justify-items:center;text-align:center;transition:opacity .4s ease,transform .5s ease}.sa-cal.is-run .sa-cal__head{opacity:0;transform:translateY(-24px);pointer-events:none}.sa-cal__head .sa-h2{font-size:clamp(1.6rem,7vw,2rem)}.sa-cal__head .sa-sub{font-size:.9rem}.sa-steps{position:absolute;left:16px;right:16px;bottom:18px;display:flex;justify-content:space-between;gap:0;z-index:5}.sa-steps{opacity:0;pointer-events:none;transition:opacity .4s ease .3s}.sa-cal.is-run .sa-steps{opacity:1;pointer-events:auto}.sa-step,.sa-root[dir=rtl] .sa-step{padding:4px}.sa-step__name{display:none}.sa-step__dot{width:40px;height:40px;font-size:15px}.sa-step.is-on{background:transparent}.sa-cal__wall{position:absolute;top:calc(var(--im-nav) + 44px);left:16px;right:16px;bottom:76px;z-index:6;height:auto;transform:translateY(46svh);transition:transform .8s cubic-bezier(.2,.8,.2,1)}.sa-cal.is-run .sa-cal__wall{transform:none}.sa-pad{width:min(340px,100%);height:min(520px,calc(100% - 56px));--hang: 44deg;--hang-len: 94px}.sa-page{padding:26px 22px 22px;gap:8px}.sa-page__num{font-size:7rem}.sa-page .sa-page__title.im-jcap{font-size:1.45rem}.sa-page__desc{font-size:.94rem;line-height:1.55}.sa-mail{height:400vh}.sa-mail__stage{--cy: calc(50% + 58px) ;--s0: .32;--env-w: calc(100vw - 56px) ;--env-h: calc(var(--env-w) * .62);--env-y: 170px}.sa-mail__top{top:calc(var(--im-nav) + 10px);gap:8px}.sa-tab{min-height:30px;padding:0 10px;font-size:.64rem;letter-spacing:.1em}.sa-letter{width:calc(100vw - 32px);grid-template-columns:1fr;gap:12px;padding:18px}.sa-letter__info{gap:8px}.sa-letter__title{font-size:1.3rem}.sa-letter__sum{font-size:.86rem;line-height:1.5}.sa-letter__price{grid-template-columns:auto 1fr;align-items:baseline;column-gap:12px;row-gap:2px;margin-top:2px}.sa-letter__price strong{grid-row:span 2;font-size:1.8rem}.sa-letter__meta{font-size:.8rem}.sa-letter__tax{font-size:.72rem}.sa-letter__side{gap:10px}.sa-pager__list{gap:7px}.sa-pager__list li{font-size:.84rem}.sa-pager__list i{width:20px;height:20px;font-size:10px}.sa-pager__btn{width:32px;height:32px;font-size:14px}.sa-select{min-height:46px}.sa-letter__mark{font-size:120px}.sa-mail__head .sa-h2{font-size:clamp(1.6rem,7vw,2rem)}.sa-env__seal{width:44px;height:44px;margin-left:-22px;top:calc(58% - 24px);font-size:19px}.sa-letter__price{opacity:clamp(0,calc((var(--rise) - .5) * 4),1)}.sa-board{height:140vh}.sa-board__stage{padding:calc(var(--im-nav) + 54px) 14px 14px;box-shadow:inset 0 0 0 8px #3f2714,inset 0 0 40px #00000080}.sa-board__title{top:calc(var(--im-nav) + 14px);font-size:.7rem}.sa-board__grid{grid-template-columns:1fr;gap:16px}.sa-note{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"top top" "title title" "tags tags" "price btn" "meta btn" "tax btn";align-items:center;column-gap:12px;row-gap:4px;padding:14px 14px 12px}.sa-note__pin{top:-9px;width:18px;height:18px;margin-left:-9px}.sa-note__top{grid-area:top}.sa-note__title{grid-area:title;font-size:1.08rem;margin:0}.sa-note__price{grid-area:price;font-size:1.35rem}.sa-note__meta{grid-area:meta;min-width:0;font-size:.74rem;line-height:1.3;white-space:normal;overflow-wrap:anywhere}.sa-note__tax{grid-area:tax;font-size:.68rem}.sa-note__list{display:none}.sa-note__tags{grid-area:tags;display:flex;gap:6px;margin:2px 0;padding:0;flex-wrap:wrap;list-style:none;min-width:0}.sa-note__tags li{flex:0 1 auto;min-width:0;max-width:100%;padding:4px 9px;border-radius:999px;background:color-mix(in srgb,var(--pc) 14%,transparent);color:#1a0b2ed1;font-size:.7rem;font-weight:700;overflow-wrap:anywhere}.sa-note__tags .sa-note__more{flex:0 0 auto}.sa-note__btn{grid-area:btn;width:auto;min-height:44px;padding:0 14px;font-size:.78rem;letter-spacing:.04em;align-self:center}.sa-split{padding:calc(var(--im-nav) + 44px) 16px 10vh}.sa-split__head{margin-bottom:6vh}.sa-split__grid{grid-template-columns:1fr;gap:0}.sa-split__media{position:sticky;top:calc(var(--im-nav) + 8px);z-index:2;height:40svh;align-self:start}.sa-split__media:after{content:"";position:absolute;left:-16px;right:-16px;top:100%;height:46px;background:linear-gradient(180deg,#121848,#12184800);pointer-events:none}.sa-split__frame{position:relative;top:auto;height:100%;border-radius:18px}.sa-split__badges{inset-inline-start:14px;bottom:14px}.sa-split__badge{padding:8px 12px;font-size:15px}.sa-split__block{min-height:44svh;justify-content:flex-start;padding-top:30px;gap:10px;opacity:.35;transform:translateY(18px)}.sa-split__block.is-on{transform:none}.sa-split__icon{width:46px;height:46px;font-size:18px}.sa-split__no{font-size:2.6rem}.sa-split__title{font-size:1.4rem}.sa-split__desc{font-size:.95rem}.sa-chalk{height:400vh}.sa-chalk__stage{padding:calc(var(--im-nav) + 10px) 8px 28px}.sa-board-bb{max-height:none;gap:14px;padding:18px 16px 22px;border-width:10px}.sa-chalk__title.im-caption{font-size:1.5rem}.sa-chalk__sub{font-size:.86rem;line-height:1.5}.sa-chalk__grid{grid-template-columns:1fr;grid-template-rows:1fr}.sa-lesson{grid-area:1 / 1;justify-content:center;gap:14px;padding:10px 6px 64px;border:none!important;opacity:0;transform:translateY(14px);transition:opacity .4s ease,transform .5s ease;pointer-events:none}.sa-lesson.is-cur{opacity:1;transform:none;background:none;pointer-events:auto}.sa-lesson.is-past{transform:translate(calc(-30px * var(--dir)))}.sa-lesson__icon{width:64px;height:64px;font-size:27px}.sa-lesson__no{font-size:1.05rem}.sa-lesson__title.im-caption{font-size:2rem}.sa-lesson__line{width:96px;height:4px}.sa-lesson__desc{font-size:1.1rem;line-height:1.7}.sa-board-bb__tray{bottom:-20px;height:10px}.sa-close{height:160vh}.sa-dip{width:calc(100vw - 48px)}.sa-dip__paper{padding:44px 26px 104px}.sa-dip .sa-dip__title.im-jcap{font-size:1.85rem}.sa-dip__desc{font-size:.95rem}.sa-dip__roll{left:-14px;right:-14px}.sa-dip__seal{right:24px;bottom:26px;width:56px;height:56px;font-size:23px}.sa-root[dir=rtl] .sa-dip__seal{left:24px}}@media(prefers-reduced-motion:reduce){.sa-root .im-stage{position:relative;height:auto;min-height:100svh}.sa-root *,.sa-root .im-cue{transition:none!important}.sa-hero__copy>*,.sa-pager__list{animation:none!important}.sa-hero{height:auto}.sa-hero__copy.is-gone{visibility:visible;pointer-events:auto}.sa-cal{height:auto}.sa-cal__stage{display:grid;grid-template-columns:1fr;justify-items:center;gap:40px;padding:calc(var(--im-nav) + 30px) 16px 60px}.sa-cal__kicker{display:none!important}.sa-cal__side{position:relative;display:grid}.sa-cal__head.sa-head{position:relative;inset:auto;opacity:1!important;transform:none!important;justify-items:center;text-align:center}.sa-steps{display:none}.sa-cal__wall{position:relative;inset:auto;transform:none!important;width:min(1100px,100%)}.sa-pad{width:100%;height:auto;margin:0;transform:none}.sa-pad__string,.sa-pad__bind,.sa-pad__stub,.sa-pad__edge{display:none}.sa-pad__pages{position:relative;inset:auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr));gap:20px;perspective:none}.sa-page{position:relative;inset:auto;transform:none!important;opacity:1!important;visibility:visible!important}.sa-page__desc,.sa-root .im-jcap__w{opacity:1;transform:none}.sa-mail{height:auto}.sa-mail__stage{display:grid;justify-items:center;gap:28px;padding:calc(var(--im-nav) + 30px) 16px 60px}.sa-mail__top{display:none}.sa-mail__head{position:relative;left:auto;top:auto;transform:none!important;opacity:1!important}.sa-mail__item{position:relative;inset:auto;visibility:visible!important;pointer-events:auto}.sa-env{display:none}.sa-letter{position:relative;left:auto;top:auto;transform:none!important;opacity:1!important;pointer-events:auto}.sa-board{height:auto}.sa-board__title{opacity:1!important;transform:translate(-50%)!important}.sa-note{opacity:1!important;transform:none!important;pointer-events:auto!important}.sa-split__img img{transform:none}.sa-split__block{opacity:1;transform:none}.sa-chalk{height:auto}.sa-board-bb{max-height:none}.sa-lesson{grid-area:auto!important;opacity:1!important;transform:none!important;pointer-events:auto!important}.sa-chalk__grid{grid-template-rows:none}.sa-close{height:auto}.sa-close__stage{padding:calc(var(--im-nav) + 60px) 16px 80px}.sa-close__bg img{transform:none}.sa-dip__msg.im-cue{opacity:1;transform:none;pointer-events:auto}}