.chero{position:relative;background:var(--navy-800);isolation:isolate;overflow:hidden}
.chero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(55% 120% at 82% 0%,rgba(60,200,255,.14),transparent 62%),
             radial-gradient(48% 95% at 8% 100%,rgba(0,105,180,.24),transparent 66%)}
.chero-in{min-height:clamp(150px,21vw,300px)}
.chero-in.has-line{min-height:0;box-sizing:border-box;
  padding-block:clamp(34px,4.6vw,64px) calc(clamp(108px,15.5vw,226px) + clamp(26px,3.2vw,44px))}
.chero-line{max-width:1176px;margin:0 auto;display:flex;flex-direction:column;gap:clamp(4px,.7vw,10px);color:#fff}
.chero-l1{font-size:clamp(25px,3.4vw,46px);font-weight:800;line-height:1.5;text-wrap:balance}
.chero-l2{font-size:clamp(15px,1.5vw,20px);font-weight:600;line-height:1.8;color:var(--blue-lt)}
.chero-eco{gap:clamp(14px,1.8vw,24px);text-decoration:none;border-radius:12px}
.chero-eco img{display:block;width:clamp(210px,24vw,340px);height:auto;transition:opacity var(--t)}
.chero-eco:hover img{opacity:.86}
.chero-eco:focus-visible{outline:3px solid var(--blue-lt);outline-offset:8px}
.chero-gen{width:max-content;max-width:100%;box-sizing:border-box;margin:clamp(14px,1.6vw,22px) auto 0;padding:6px 18px;border-radius:999px;font-size:clamp(15px,1.5vw,21px);font-weight:800;
  line-height:1.6;color:#c7d0da;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.22)}
.chero-gen.is-gen2{color:#9fdcff;background:rgba(0,105,180,.18);border-color:rgba(159,220,255,.45);box-shadow:0 0 30px -10px rgba(0,105,180,.8)}
.chero-tools{width:fit-content;max-width:100%;margin:clamp(10px,1.2vw,16px) auto 0;text-align:center;
  font:300 clamp(14px,1.35vw,19px)/1.6 "Segoe UI",system-ui,Roboto,Arial,sans-serif;letter-spacing:.05em;color:rgba(214,236,255,.85);text-wrap:balance}
.chero.is-gen2{background:#020617}
.chero.is-gen2::before{display:none}
.chero-pond{position:absolute;inset:0;z-index:-10;pointer-events:none;
  background:radial-gradient(60% 55% at 50% 100%,rgba(0,105,180,.32),rgba(0,105,180,0) 70%),
    linear-gradient(180deg,#000 0%,#020617 45%,#04102a 100%)}
.chero-pond::after{content:"";position:absolute;inset:0;background-repeat:repeat;background-size:400px 400px;opacity:.85;
  background-image:url(/assets/softwares/sparkles-tile.png);
  background-image:image-set(url(/assets/softwares/sparkles-tile.webp) type("image/webp"),url(/assets/softwares/sparkles-tile.png) type("image/png"))}
.chero.is-versus{background:#061325}
.chero.is-versus::before{background:
  radial-gradient(40% 80% at 76% 30%,rgba(60,200,255,.30),transparent 70%),
  radial-gradient(40% 80% at 24% 30%,rgba(255,75,38,.24),transparent 70%),
  linear-gradient(180deg,#061325 0%,#0c2443 100%)}
.chero.is-versus::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(100deg,transparent calc(50% - 1px),rgba(255,255,255,.16) 50%,transparent calc(50% + 1px)),
             radial-gradient(rgba(255,255,255,.09) 1px,transparent 1.5px) 0 0/22px 22px;
  -webkit-mask-image:radial-gradient(70% 90% at 50% 30%,#000,transparent);mask-image:radial-gradient(70% 90% at 50% 30%,#000,transparent)}
.chero-vs{gap:clamp(16px,2.2vw,30px)}
.chero-vs .chero-l1{font-size:clamp(19px,2.3vw,32px);color:#dbe8f5}
.chero-vs-row{--lh:clamp(18px,2.9vw,44.3px);--vs:clamp(40px,3.6vw,56px);display:flex;align-items:flex-start;justify-content:center;gap:clamp(18px,3.6vw,60px)}
.chero-vs-side{display:grid;grid-template-rows:var(--lh) auto;justify-items:center;align-items:center;gap:clamp(10px,1.2vw,16px);text-decoration:none;border-radius:12px}
.chero-vs-side img{display:block;width:clamp(118px,19vw,290px);height:auto;transition:opacity var(--t)}
.chero-vs-side:hover img{opacity:.86}
.chero-vs-side:focus-visible{outline:3px solid var(--blue-lt);outline-offset:8px}
.chero-vs-k{padding:4px 14px;border-radius:999px;font-size:clamp(12.5px,1vw,14.5px);font-weight:800;line-height:1.7}
.chero-vs-side.is-fv .chero-vs-k{color:#3cc8ff;background:rgba(60,200,255,.12);border:1px solid rgba(60,200,255,.4)}
.chero-vs-side.is-nt .chero-vs-k{color:#ff9a6b;background:rgba(255,75,38,.12);border:1px solid rgba(255,75,38,.42)}
.chero-vs-x{flex:none;display:grid;place-items:center;width:var(--vs);aspect-ratio:1;border-radius:50%;margin-top:calc((var(--lh) - var(--vs)) / 2);
  font:800 clamp(12.5px,1.05vw,15px)/1 system-ui,"Segoe UI",Roboto,Arial,sans-serif;letter-spacing:.06em;color:#fff;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.28)}
.chero-grid{position:absolute;inset:0;z-index:-10;width:100%;height:100%;
  background-image:linear-gradient(to right,#525252 1px,transparent 1px),linear-gradient(to bottom,#525252 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(ellipse at center,#000,transparent);mask-image:radial-gradient(ellipse at center,#000,transparent)}
.chero.has-media,.chero.has-bloom{background:#000}
.chero.has-media::before,.chero.has-bloom::before{display:none}
.chero-media,.chero-art{display:none}
.chero-bloom{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0;opacity:0;transition:opacity .8s ease}
.chero-bloom.is-on{opacity:1}
@media(prefers-reduced-motion:reduce){.chero-bloom{transition:none}}
.is-phone .chero-bloom{display:none}
.chero.has-bloom .chero-in{position:relative;z-index:1}
.chero.has-mesh{background:#000}
.chero.has-mesh::before{display:none}
.chero-mesh{position:absolute;inset:0;z-index:0;opacity:0;transition:opacity .8s ease}
.chero-mesh.is-on{opacity:1}
.chero-mesh-l{position:absolute;inset:0}
.is-phone .chero-mesh{display:none}
.chero.has-mesh .chero-in{position:relative;z-index:1}
.chero-in.has-mesh .chero-line,.chero-in.is-tall .chero-line{align-items:center;text-align:center}
@media(min-width:861px){
  .chero-in.has-mesh.has-line,.chero-in.is-tall.has-line{--mh:clamp(300px,31vw,440px);display:grid;align-content:center;min-height:var(--mh);box-sizing:content-box;
    padding-block:clamp(16px,2vw,28px) calc(clamp(108px,15.5vw,226px) + clamp(14px,1.8vw,26px))}
}
.chero-in.has-mesh .chero-l1{font-size:clamp(34px,5vw,72px);line-height:1.35;
  filter:drop-shadow(0 10px 8px rgb(0 0 0 / .04)) drop-shadow(0 4px 3px rgb(0 0 0 / .1))}
.chero-in.has-mesh .chero-l2{color:#d1d5db;font-size:clamp(16px,1.6vw,20px)}
.chero-w{display:inline-block}
@keyframes chero-up{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
@keyframes chero-up2{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
html:not(.is-phone) .chero-w{animation:chero-up .5s ease-out both;animation-delay:calc(var(--i) * .05s)}
html:not(.is-phone) .chero-in.has-mesh .chero-l2{animation:chero-up2 .8s ease-out 1.2s both}
@media(prefers-reduced-motion:reduce){html:not(.is-phone) .chero-w,html:not(.is-phone) .chero-in.has-mesh .chero-l2{animation:none}}
@media(min-width:861px){
  .chero-in.has-media,.chero-in.has-art{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:clamp(24px,4vw,64px);
    padding-block:clamp(16px,2vw,28px) calc(clamp(108px,15.5vw,226px) + clamp(14px,1.8vw,26px))}
  .chero-in.has-media .chero-line,.chero-in.has-art .chero-line{margin:0}
  .chero-media,.chero-art{--mh:clamp(300px,31vw,440px);display:block;height:var(--mh);aspect-ratio:2/3;position:relative;z-index:0}
  .chero-media video,.chero-media picture,.chero-media img{display:block;width:100%;height:100%;object-fit:contain}
}

.cvideo{position:relative;z-index:5;margin-top:calc(-1 * clamp(108px,15.5vw,226px));perspective:1000px}
.cvideo-card{max-width:64rem;margin-inline:auto;box-sizing:border-box;border:4px solid #6C6C6C;padding:8px;background:#222222;
  border-radius:30px;transform-origin:50% 50%;will-change:transform;
  box-shadow:0 0 #0000004d,0 9px 20px #0000004a,0 37px 37px #00000042,0 84px 50px #00000026,0 149px 60px #0000000a,0 233px 65px #00000003}
.cvideo-mat{border-radius:16px;overflow:hidden;background:#18181b}
@media(min-width:768px){.cvideo-card{padding:24px}.cvideo-mat{padding:16px}}
@media(min-width:769px){.cvideo-card{max-width:min(64rem,calc((100vw - 32px) / 1.18))}}
.js .cvideo-card{transform:rotateX(20deg) scale(1.05)}
@media(max-width:768px){.js .cvideo-card{transform:rotateX(20deg)}}
@media(prefers-reduced-motion:reduce){.js .cvideo-card{transform:none}}
.cvideo-card.is-monitor{border:clamp(2px,.2vw,3px) solid transparent;border-radius:clamp(10px,1.1vw,16px);padding:clamp(5px,.7vw,10px);
  background:linear-gradient(180deg,#25272b,#121316 55%,#0d0e10) padding-box,
             linear-gradient(160deg,#e3e6e9,#8a8f95 38%,#c3c7cb 62%,#5b5f64) border-box}
.cvideo-card.is-monitor .cvideo-mat{padding:0;border-radius:clamp(4px,.45vw,7px);background:#000;
  box-shadow:0 0 0 1px rgba(255,255,255,.05)}
.cvideo-card.is-monitor .cvideo-frame{border-radius:clamp(4px,.45vw,7px)}
.cvideo-play > .cvideo-shot{position:absolute;inset:0;display:block}
.cvideo-shot img{display:block;width:100%;height:100%;object-fit:cover}
.cvideo.has-monitor{--neck:clamp(28px,4.6vw,66px);--foot:clamp(8px,.95vw,14px);padding-bottom:calc(var(--neck) + var(--foot))}
.cvideo-card.is-monitor{transform-origin:50% 100%}
.cvideo-stand{position:absolute;top:100%;left:50%;translate:-50% 0;width:32%;display:flex;flex-direction:column;align-items:center;pointer-events:none}
.cvideo-neck{width:26%;height:var(--neck);clip-path:polygon(6% 0,94% 0,100% 100%,0 100%);
  background:linear-gradient(90deg,#55595e,#b9bdc2 24%,#eef0f2 44%,#a4a8ad 70%,#4d5156),
             linear-gradient(180deg,rgba(0,0,0,.55),transparent 40%);background-blend-mode:multiply}
.cvideo-foot{width:100%;height:var(--foot);border-radius:clamp(4px,.5vw,7px) clamp(4px,.5vw,7px) 50% 50% / clamp(4px,.5vw,7px) clamp(4px,.5vw,7px) 100% 100%;
  background:linear-gradient(180deg,#f1f3f5,#b5b9be 45%,#7c8086);box-shadow:0 16px 24px -10px rgba(0,0,0,.45)}
.cvideo-frame{position:relative;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--navy-900)}
.cvideo-frame iframe,.cvideo-play,.cvideo-still{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.cvideo-play{margin:0;padding:0;background:none;cursor:pointer;font:inherit}
.cvideo-play > svg,.cvideo-still > svg{display:block;width:100%;height:100%}
.cvideo-btn{position:absolute;left:50%;top:50%;translate:-50% -50%;width:clamp(64px,8vw,104px);aspect-ratio:1;display:grid;place-items:center}
.cvideo-disc{position:relative;z-index:1;width:100%;height:100%;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:radial-gradient(circle at 32% 24%,rgba(255,255,255,.42),rgba(255,255,255,0) 46%),linear-gradient(150deg,#3cc8ff,#0069b4 72%);
  box-shadow:0 14px 34px rgba(0,105,180,.5),inset 0 1px 0 rgba(255,255,255,.55),inset 0 -6px 14px rgba(0,40,90,.35),0 0 0 7px rgba(255,255,255,.12);
  transition:transform var(--t),box-shadow var(--t)}
.cvideo-disc::after{content:"";position:absolute;inset:0;border-radius:50%;opacity:0;transition:opacity var(--t);
  background:radial-gradient(circle at 32% 24%,rgba(255,255,255,.42),rgba(255,255,255,0) 46%),linear-gradient(150deg,#ff7a55,#ff4b26 72%)}
.cvideo-disc svg{position:relative;z-index:1;width:55%;height:55%;filter:drop-shadow(0 1px 2px rgba(0,30,60,.35))}
.cvideo-ring{position:absolute;inset:0;border-radius:50%;border:2px solid rgba(60,200,255,.6);animation:cvideo-ring 2.6s cubic-bezier(.2,.6,.3,1) infinite}
.cvideo-ring2{animation-delay:1.3s}
@keyframes cvideo-ring{from{transform:scale(1);opacity:.85}to{transform:scale(1.8);opacity:0}}
.cvideo-play:hover .cvideo-disc{transform:scale(1.07);box-shadow:0 16px 38px rgba(255,75,38,.5),inset 0 1px 0 rgba(255,255,255,.55),0 0 0 7px rgba(255,255,255,.16)}
.cvideo-play:hover .cvideo-disc::after{opacity:1}
.cvideo-play:hover .cvideo-ring{border-color:rgba(255,75,38,.6)}
.cvideo-play:focus-visible{outline:3px solid var(--blue-lt);outline-offset:-3px}
@media(prefers-reduced-motion:reduce){.cvideo-ring{animation:none;opacity:0}}
@media(max-width:860px){.cvideo-ring{animation-iteration-count:3;animation-fill-mode:forwards}}

.cgrid{display:grid;grid-template-columns:minmax(0,1fr) 344px;column-gap:clamp(28px,4vw,56px);
  align-items:start;padding-block:clamp(30px,4vw,52px) clamp(48px,6vw,84px)}
.chead,.ccontent,.carticle,.cfaq,.cteacher{grid-column:1}
.caside{grid-column:2;grid-row:1 / span 4;position:sticky;top:92px}

.chead h1{font-size:clamp(23px,2.9vw,35px);line-height:1.6;text-wrap:balance;margin-bottom:14px}
.ccrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px;font-size:13.5px;color:var(--fg-3)}
.ccrumbs a{color:var(--fg-2);text-decoration:none}
.ccrumbs a:hover{color:var(--brand);text-decoration:underline}
@media(pointer:coarse){.ccrumbs a{display:inline-block;min-width:44px;text-align:center;padding:10px;margin:-10px}}
.cexcerpt{color:var(--fg-2);font-size:16px;line-height:2.05;max-width:82ch}
.cbyline{margin:-4px 0 12px;font-size:14px;color:var(--fg-3)}
.cbyline a{color:var(--fg-2);font-weight:700;text-decoration:none}
.cbyline a:hover{color:var(--brand);text-decoration:underline}
@media(pointer:coarse){.cbyline a{display:inline-block;padding:10px 0;margin:-10px 0}}

.cbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--shadow-m);padding:22px}
.cbox-price{display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:16px;border-bottom:1px solid var(--line)}
.cbox-k{color:var(--fg-3);font-size:14px}
.cbox-v{font-size:28px;font-weight:800;color:var(--fg);letter-spacing:-.01em}
.cbox-stock{margin:16px 0 0;padding:10px 14px;border-radius:var(--r-s);text-align:center;
  background:rgba(255,75,38,.09);color:#cf3a18;font-weight:800;font-size:14.5px}
.cbox-plan{display:flex;align-items:center;justify-content:center;gap:8px;margin:14px 0 0;padding:9px 14px;border-radius:var(--r-s);
  background:rgba(22,163,106,.10);border:1px solid rgba(22,163,106,.25);color:#0f7a4f;font-weight:800;font-size:14.5px}
.cbox-plan svg{flex:none;width:20px;height:20px}
:root[data-theme="dark"] .cbox-plan{background:rgba(61,220,151,.10);border-color:rgba(61,220,151,.28);color:#7ff0bd}
.cbox-facts{margin:14px 0 0}
.cbox-facts div{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 14px;
  padding:11px 0;border-bottom:1px dashed var(--line)}
.cbox-facts div:last-child{border-bottom:0}
.cbox-facts dt{color:var(--fg-3);font-size:13.5px}
.cbox-facts dd{margin:0;color:var(--fg);font-size:14px;font-weight:700;line-height:1.8}
.cbox-consult{display:flex;width:100%;max-width:none;margin-top:16px;box-sizing:border-box}
.cinstall{display:flex;align-items:center;gap:13px;margin-top:16px;padding:13px 16px 13px 14px;border-radius:var(--r-m);
  background:linear-gradient(135deg,#1b3c62 0%,#112b4a 55%,#0a1b30 100%);border:1px solid rgba(60,200,255,.28);
  color:#fff;text-decoration:none;font-weight:800;font-size:15px;line-height:1.7;
  box-shadow:0 2px 5px rgba(10,27,48,.18),0 16px 30px -12px rgba(10,27,48,.55);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.cinstall:hover{transform:translateY(-2px);border-color:rgba(60,200,255,.7);
  box-shadow:0 3px 8px rgba(10,27,48,.2),0 22px 40px -14px rgba(10,27,48,.65),0 0 0 3px rgba(60,200,255,.12)}
.cinstall:focus-visible{outline:3px solid var(--blue-lt);outline-offset:3px}
.cinstall-art{flex:none;display:grid;place-items:center;width:46px;height:46px;border-radius:12px;
  background:rgba(60,200,255,.14);color:#3cc8ff}
.cinstall-art svg{width:32px;height:32px}
.cinstall-t{flex:1;min-width:0}
.cinstall-go{flex:none;width:18px;height:18px;color:#3cc8ff;transition:transform var(--t)}
.cinstall:hover .cinstall-go{transform:translateX(-3px)}
@media (prefers-reduced-motion:reduce){.cinstall,.cinstall-go{transition:none}.cinstall:hover,.cinstall:hover .cinstall-go{transform:none}}
.cfelobuy{background:linear-gradient(135deg,#0e5583 0%,#0a3a60 55%,#07243e 100%);border-color:rgba(60,200,255,.5)}
.cfelobuy:hover{border-color:#3cc8ff}
.cfelobuy .cinstall-art{background:rgba(60,200,255,.2)}
.cfelobuy-n{display:block;font-size:12.5px;font-weight:700;line-height:1.5;color:#9fe3ff}
[data-theme="dark"] .cinstall{background:linear-gradient(180deg,#f0eee6 0%,#e4e1d6 100%);border-color:rgba(250,249,245,.5);color:#1f1e1d;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 16px 30px -18px rgba(0,0,0,.75)}
[data-theme="dark"] .cinstall:hover{border-color:#faf9f5;box-shadow:inset 0 1px 0 rgba(255,255,255,.8),0 22px 40px -20px rgba(0,0,0,.8),0 0 0 3px rgba(250,249,245,.10)}
[data-theme="dark"] .cinstall-art{background:rgba(74,111,150,.12);color:#3f6a93;box-shadow:inset 0 0 0 1px rgba(74,111,150,.22)}
[data-theme="dark"] .cinstall-go{color:#3f6a93}
[data-theme="dark"] .cfelobuy{background:linear-gradient(180deg,#f0eee6 0%,#e4e1d6 100%);border-color:rgba(250,249,245,.5)}
[data-theme="dark"] .cfelobuy:hover{border-color:#faf9f5}
[data-theme="dark"] .cfelobuy .cinstall-art{background:rgba(95,115,71,.14);color:#56693f;box-shadow:inset 0 0 0 1px rgba(95,115,71,.26)}
[data-theme="dark"] .cfelobuy .cinstall-go,[data-theme="dark"] .cfelobuy-n{color:#56693f}
[data-theme="dark"] .cbox .btn-ghost.cbox-consult{background:#ece9e1;border-color:#ece9e1;color:#1f1e1d}
[data-theme="dark"] .cbox .btn-ghost.cbox-consult:hover{background:#faf9f5;border-color:#faf9f5}
.cbox-buy{background:#ff4b26;border-color:#ff4b26;color:#fff;font-weight:800;box-shadow:0 10px 24px -12px rgba(255,75,38,.7)}
.cbox-buy:hover{background:#e8401d;border-color:#e8401d}
.cbox .coupon{display:grid;width:100%;box-sizing:border-box;margin-top:12px;justify-content:space-between}
.cbox .coupon + .cbox-consult{margin-top:12px}
.cbox-tg{margin-top:10px;background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700;gap:10px}
.cbox-tg:hover{background:var(--blue-700)}
.cbox-tg svg{width:22px;height:22px;flex:none}
[data-theme="dark"] .cbox-buy{background:linear-gradient(180deg,#d97757,#c6613f);border-color:#c6613f;color:#faf9f5;box-shadow:0 10px 22px -12px rgba(217,119,87,.7)}
[data-theme="dark"] .cbox-buy:hover{background:linear-gradient(180deg,#e08a6d,#d97757);border-color:#d97757}
[data-theme="dark"] .cbox-tg{background:#30302e;border-color:#45443f;color:#faf9f5}
[data-theme="dark"] .cbox-tg:hover{background:#3a3936;border-color:#57554f}
[data-theme="dark"] .cbox-tg svg{color:#6aa9e0}
[data-theme="dark"] .cbox-tg svg path{fill:#faf9f5}
.cbox-notice{display:flex;align-items:flex-start;gap:10px;margin:0;padding:12px 14px;border-radius:var(--r-s);
  background:rgba(0,105,180,.07);border:1px solid rgba(0,105,180,.14);color:var(--fg);font-size:14px;font-weight:600;line-height:1.95}
.cbox-notice svg{flex:none;width:20px;height:20px;margin-top:4px;color:var(--blue)}
.cbox-cta{background:var(--brand);color:var(--on-brand);border-color:transparent;gap:8px}
.cbox-cta:hover{background:var(--blue-700)}
.cbox-cta svg{width:18px;height:18px;transition:translate var(--t)}
.cbox-cta:hover svg{translate:-3px 0}
.cbox-dl{gap:10px}
.cbox-dl svg{width:20px;height:20px;flex:none}
.cbox-dl:hover svg{translate:0 2px}
.cbox-flow{gap:8px}
.cbox-flow svg{width:18px;height:18px;flex:none}
.cbox-flow + .cbox-dl{margin-top:10px}

.ccontent{margin-top:clamp(30px,3.4vw,44px)}
.clead h2,.clead h4{font-size:17.5px;line-height:1.8;margin-bottom:6px}
.clead p{margin-bottom:0}
.ccontent-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin:22px 0 14px}
.ccontent-head h2{font-size:clamp(20px,2.2vw,26px);margin-inline-end:auto}
.ccounts{display:flex;gap:8px}
.ccounts span{padding:5px 12px;border-radius:var(--r-pill);background:var(--bg-2);color:var(--fg-2);font-size:13px;font-weight:700}
.ctoggle{border:0;background:none;padding:6px 4px;color:var(--blue);font:inherit;font-size:13.5px;font-weight:700;cursor:pointer}
@media(pointer:coarse){.ctoggle{min-height:44px}.cnow-step{--step-s:44px}}
.ctoggle:hover{color:var(--blue-700)}
.csec{margin-bottom:10px;border:1px solid var(--line);border-radius:var(--r-m);background:var(--surface);overflow:hidden}
.csec summary{display:flex;align-items:center;gap:12px;padding:15px 18px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:800;color:var(--fg);transition:background var(--t)}
.csec summary::-webkit-details-marker{display:none}
.csec summary:hover{background:var(--surface-2)}
.csec summary::after{content:"";flex:none;width:8px;height:8px;margin:0 4px 4px;
  border-right:2px solid var(--fg-3);border-bottom:2px solid var(--fg-3);rotate:45deg;transition:rotate var(--t)}
.csec[open] summary{background:var(--surface-2);border-bottom:1px solid var(--line)}
.csec[open] summary::after{rotate:-135deg;margin-bottom:-4px}
.csec-t{flex:1}
.csec-n{font-size:13px;font-weight:700;color:var(--fg-3)}
.clessons{list-style:none;margin:0;padding:6px 0}
.clessons li{display:flex;align-items:center;gap:14px;padding:10px 18px;font-size:14.5px;line-height:1.9;color:var(--fg)}
.clessons li + li{border-top:1px solid var(--bg-2)}
.cl-n{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:var(--bg-2);color:var(--blue);font-size:12.5px;font-weight:800}
.cl-t{flex:1}
.cl-prev{flex:none;display:inline-flex;align-items:center;gap:6px;padding:4px 12px 4px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--blue);font-size:13px;font-weight:700;text-decoration:none;white-space:nowrap;
  transition:border-color var(--t),background var(--t)}
.cl-prev:hover{border-color:var(--blue);background:var(--bg-2)}
.cl-prev svg{width:16px;height:16px}

.cfaq{margin-top:clamp(36px,4vw,56px);padding-top:clamp(28px,3vw,40px);border-top:1px solid var(--line)}
.cfaq h2{font-size:clamp(20px,2.2vw,26px);margin:0 0 12px}
.cq{border-bottom:1px solid var(--line)}
.cq summary{display:flex;align-items:center;gap:14px;padding:16px 2px;cursor:pointer;list-style:none;
  font-size:15.5px;font-weight:700;line-height:1.85;color:var(--fg)}
.cq summary::-webkit-details-marker{display:none}
.cq summary::after{content:"";flex:none;margin-inline-start:auto;width:8px;height:8px;margin-bottom:4px;
  border-right:2px solid var(--fg-3);border-bottom:2px solid var(--fg-3);rotate:45deg;transition:rotate var(--t)}
.cq[open] summary::after{rotate:-135deg;margin-bottom:-4px}
.cq summary:hover{color:var(--blue)}
.cq summary:focus-visible{outline:3px solid var(--blue-lt);outline-offset:2px;border-radius:6px}
.cq-a{padding:0 2px 16px}
.cq-a p{margin:0;font-size:15px;line-height:2;color:var(--fg-2)}

.carticle{margin-top:clamp(36px,4vw,56px);padding-top:clamp(28px,3vw,40px);border-top:1px solid var(--line)}
.carticle p{font-size:15.5px;line-height:2.05}
.carticle h2,.carticle h3,.carticle h4,.carticle h5,.carticle h6{margin:30px 0 12px;line-height:1.65;max-width:82ch}
.carticle h2{font-size:24px}.carticle h3{font-size:21px}.carticle h4{font-size:18.5px}
.carticle h5{font-size:17px}.carticle h6{font-size:16px}
.carticle ul,.carticle ol{max-width:82ch;margin:0 0 16px;padding-inline-start:22px;color:var(--fg-2);font-size:15.5px;line-height:2}
.carticle hr{max-width:82ch;margin:22px 0;border:0;border-top:1px solid var(--line)}
.carticle a{color:var(--blue);text-underline-offset:3px}
.carticle strong{color:var(--fg)}
.carticle bdi{font-family:system-ui,"Segoe UI",Roboto,Arial,sans-serif;unicode-bidi:isolate}

.cpart{scroll-margin-top:90px}
.cpart + .cpart{margin-top:clamp(26px,3vw,38px)}
.cpart > h2{margin-top:0}
.js .cpart.is-fold:not(.is-open) .cpart-body{position:relative;max-height:240px;
  overflow:hidden;overflow-x:visible;overflow-y:clip}
.js .cpart.is-fold:not(.is-open) .cpart-body::after{content:"";position:absolute;inset:auto -14px 0;height:150px;
  background:linear-gradient(to bottom,rgba(255,255,255,0),var(--bg) 82%);pointer-events:none}
.cpart-more{display:none}
.js .cpart-more{display:flex;align-items:center;gap:8px;width:max-content;margin:6px auto 0;padding:8px 18px 8px 16px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface);color:var(--blue);
  font:inherit;font-size:14px;font-weight:700;cursor:pointer;box-shadow:0 6px 16px -8px rgba(17,43,74,.28);
  transition:border-color var(--t),background var(--t)}
.cpart-more:hover{border-color:var(--blue);background:var(--bg-2)}
.cpart-more:focus-visible{outline:3px solid var(--blue-lt);outline-offset:2px}
.cpart-more svg{width:12px;height:12px;transition:rotate var(--t)}
.cpart.is-open .cpart-more svg{rotate:180deg}
.cpart.is-toc .cpart-body{background:var(--bg-2);border-radius:var(--r-m);padding:14px 22px}
.cpart.is-toc ol{margin:0;line-height:2.3}
.cpart.is-toc a{text-decoration:none}
.cpart.is-toc a:hover{text-decoration:underline}

.cfig{margin:26px 0;padding:10px;border-radius:18px;
  background:linear-gradient(135deg,rgba(255,255,255,.98) 0%,rgba(214,229,246,.8) 38%,rgba(246,250,255,.95) 52%,rgba(202,220,241,.78) 100%);
  border:1px solid #fff;
  box-shadow:inset 0 1px 0 #fff,inset 0 -1px 0 rgba(17,43,74,.06),0 0 0 1px rgba(17,43,74,.08),
             0 26px 50px -22px rgba(17,43,74,.42),0 6px 18px -8px rgba(17,43,74,.14)}
.cfig picture,.cfig img{display:block;width:100%;height:auto;border-radius:10px}
.cfig img{box-shadow:0 0 0 1px rgba(17,43,74,.1)}
[data-theme="dark"] .cfig{border-color:rgba(222,220,209,.16);
  background:linear-gradient(135deg,rgba(250,249,245,.12) 0%,rgba(250,249,245,.03) 38%,rgba(250,249,245,.08) 52%,rgba(217,119,87,.07) 100%);
  box-shadow:inset 0 1px 0 rgba(250,249,245,.16),inset 0 -1px 0 rgba(0,0,0,.4),0 0 0 1px rgba(0,0,0,.35),
             0 26px 50px -22px rgba(0,0,0,.8),0 14px 40px -20px rgba(217,119,87,.22)}
[data-theme="dark"] .cfig img{box-shadow:0 0 0 1px rgba(0,0,0,.45)}

.cteacher{display:flex;align-items:flex-start;gap:18px;margin-top:clamp(32px,4vw,48px);
  padding:22px;border-radius:var(--r-l);background:var(--bg-2)}
.cteacher-av{flex:none;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:var(--navy-800);color:#fff;font-size:22px;font-weight:800}
.cteacher p{margin:0}
.cteacher-n{font-size:17px;font-weight:800;color:var(--fg)}
.cteacher-r{margin-top:2px !important;font-size:13.5px;color:var(--fg-3)}
.cteacher-b{margin-top:8px !important;font-size:15px;line-height:2;color:var(--fg-2)}
[data-theme="dark"] .cteacher{border:1px solid rgba(222,220,209,.10);background:linear-gradient(180deg,#2a2927,#22211f);
  box-shadow:inset 0 1px 0 rgba(250,249,245,.06),0 22px 44px -28px rgba(0,0,0,.8)}
[data-theme="dark"] .cteacher-av{background:linear-gradient(140deg,#e08a6d,#c6613f);color:#faf9f5;box-shadow:0 0 0 5px rgba(217,119,87,.14)}
[data-theme="dark"] .cteacher-r{display:inline-block;margin-top:6px !important;padding:2px 10px;border-radius:999px;background:rgba(250,249,245,.06);
  box-shadow:inset 0 0 0 1px rgba(222,220,209,.10);color:var(--fg-2);font-size:12.5px}
[data-theme="dark"] .cteacher-b{margin-top:12px !important}

.crelated-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}

@media(max-width:960px){
  .cgrid{grid-template-columns:minmax(0,1fr)}
  .caside{grid-column:1;grid-row:auto;position:static;margin-top:22px}
  .crelated-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:560px){
  .cfig{margin:20px 0;padding:7px;border-radius:14px}
  .cfig picture,.cfig img{border-radius:8px}
  .cpart.is-toc .cpart-body{padding:12px 16px}
  .crelated-cards{grid-template-columns:minmax(0,1fr)}
  .csec summary{padding:14px 15px;font-size:15px}
  .clessons li{padding:10px 15px;gap:12px;font-size:14px}
  .clessons li:has(.cl-prev){flex-wrap:wrap}
  .cl-prev{margin-inline-start:40px}
}

.cpl-sprite{position:absolute;width:0;height:0;overflow:hidden}
.cpl{scroll-margin-top:84px}
@media(min-width:769px){.cpl .cpl-card{max-width:min(var(--maxw) - 64px,calc((100vw - 32px) / 1.18))}}
.cpl-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.cpl-rail{display:flex;flex-direction:column;min-height:0;border-radius:10px;background:#111114;border:1px solid rgba(255,255,255,.07)}
.cpl-head{display:flex;justify-content:space-between;gap:10px;margin:0;padding:10px 14px;color:#cfd6df;font-size:13px;font-weight:700;
  border-bottom:1px solid rgba(255,255,255,.07)}
.cpl-list{list-style:none;margin:0;padding:6px;overflow-y:auto;max-height:312px;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}
@media(max-width:1239px){.cpl .cpl-card{transform-origin:50% 100%}}
@media(min-width:1240px){
  .cpl-grid{grid-template-columns:minmax(0,1fr) 316px;gap:14px}
  .cpl-rail{contain:size;overflow:hidden}
  .cpl-list{flex:1;max-height:none}
}
.cpl-item{display:grid;grid-template-columns:124px minmax(0,1fr);grid-template-rows:auto 1fr;column-gap:10px;padding:6px;
  border-radius:8px;text-decoration:none;color:#e6ebf1;transition:background var(--t)}
.cpl-item + .cpl-item,.cpl-list li + li{margin-top:2px}
.cpl-item:hover{background:rgba(255,255,255,.06)}
.cpl-item.is-on{background:rgba(60,200,255,.12);box-shadow:inset 0 0 0 1px rgba(60,200,255,.38)}
.cpl-item:focus-visible{outline:2px solid var(--blue-lt);outline-offset:-2px}
.cpl-face{grid-row:1 / span 2;display:block;aspect-ratio:16/9;border-radius:6px;overflow:hidden;background:#0b1829}
.cpl-face svg{display:block;width:100%;height:100%}
:root{--nb-pp:#f6f1e6;--nb-rl:rgba(106,155,204,.20);--nb-ik:#2b2a27;--nb-ik2:#77746c;--nb-up:#3f74a8;--nb-dn:#c6613f;
  --nb-hl:rgba(240,196,120,.48);--nb-mk:#d97757;--nb-tp:rgba(214,203,178,.8)}
:root[data-theme="dark"]{--nb-pp:#2b2a27;--nb-rl:rgba(250,249,245,.07);--nb-ik:#ece9e1;--nb-ik2:#9d998e;--nb-up:#8fb5dc;
  --nb-dn:#e8a487;--nb-hl:rgba(217,119,87,.26);--nb-mk:#e3906f;--nb-tp:rgba(250,249,245,.16)}
.cpl-face.is-nb{background:var(--nb-pp)}
.nb-ppf{fill:var(--nb-pp)} .nb-rl{stroke:var(--nb-rl)} .nb-ik{stroke:var(--nb-ik)} .nb-ikf{fill:var(--nb-ik)}
.nb-ik2{stroke:var(--nb-ik2)} .nb-ik2f{fill:var(--nb-ik2)} .nb-up{stroke:var(--nb-up)} .nb-dn{stroke:var(--nb-dn)}
.nb-dnf{fill:var(--nb-dn)} .nb-upf{fill:var(--nb-up)} .nb-tpf{fill:var(--nb-tp)} .nb-hlf{fill:var(--nb-hl)} .nb-mk{stroke:var(--nb-mk)} .nb-mkf{fill:var(--nb-mk)} .nb-st{stop-color:var(--nb-pp)}
.cpl-face.is-pc{background:var(--pc-bg)}
.cpl-t{font-size:13px;font-weight:700;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cpl-d{font-size:12px;font-weight:600;color:#9aa7b6;align-self:end}
.cpl-item.is-on .cpl-t{color:#8fe0ff}
@media(max-width:560px){
  .cpl-item{grid-template-columns:108px minmax(0,1fr)}
  .cpl-list{max-height:276px}
}

.cpl-tab{margin-top:clamp(4px,1vw,12px)}
.cpl-tab-body{position:relative;max-width:calc(var(--maxw) - 64px);margin-inline:auto;box-sizing:border-box;padding:12px;border-radius:26px;
  background:linear-gradient(155deg,rgba(125,170,220,.30) 0%,rgba(60,110,170,.20) 28%,rgba(17,43,74,.26) 62%,rgba(10,27,48,.34) 100%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);backdrop-filter:blur(18px) saturate(150%);
  border:1px solid rgba(190,220,255,.26);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),inset 0 -1px 0 rgba(0,0,0,.3),inset 0 0 22px rgba(170,210,255,.12),
             0 34px 60px -26px rgba(17,43,74,.6),0 12px 26px -14px rgba(17,43,74,.45)}
:root[data-theme="dark"] .cpl-tab-body{background:linear-gradient(155deg,rgba(250,249,245,.14) 0%,rgba(250,249,245,.06) 28%,rgba(40,39,36,.30) 62%,rgba(217,119,87,.10) 100%);
  border-color:rgba(222,220,209,.18);box-shadow:inset 0 1px 0 rgba(250,249,245,.22),inset 0 -1px 0 rgba(0,0,0,.45),
  inset 0 0 22px rgba(250,249,245,.05),0 34px 60px -26px rgba(0,0,0,.75),0 18px 40px -22px rgba(217,119,87,.20)}
:root[data-theme="dark"] .cpl-tab-body::before{background:#45443f}
:root[data-theme="dark"] .cpl-tab-mat{background:#121211}
:root[data-theme="dark"] .cpl-tab .cvideo-frame{background:#1a1918}
:root[data-theme="dark"] .cpl-tab .cpl-rail{background:#1a1918;border-color:rgba(222,220,209,.10)}
:root[data-theme="dark"] .cpl-tab .cpl-head{color:var(--fg-2);border-bottom-color:rgba(222,220,209,.10)}
:root[data-theme="dark"] .cpl-item.is-on{background:rgba(217,119,87,.12);box-shadow:inset 0 0 0 1px rgba(217,119,87,.40)}
:root[data-theme="dark"] .cpl-item.is-on .cpl-t{color:#f0c4b2}
.cpl-tab-body::before{content:"";position:absolute;left:5px;top:50%;translate:0 -50%;width:5px;height:5px;border-radius:50%;
  background:#3d6797;box-shadow:0 0 0 2px rgba(255,255,255,.06)}
.cpl-tab-mat{border-radius:16px;background:#06111f;padding:10px}
@media(min-width:768px){.cpl-tab-body{padding:18px;border-radius:32px}.cpl-tab-mat{padding:14px}.cpl-tab-body::before{left:7px}}
.cpl-tab .cvideo-frame{background:#0a1b30}
.cpl-tab .cvideo-play > .cpl-face{position:absolute;inset:0;border-radius:0}
.cpl-tab .cpl-rail{background:#0a1a2e;border-color:rgba(140,180,220,.14)}
.cpl-tab .cpl-head{color:#cfe0f0;border-bottom-color:rgba(140,180,220,.14)}
.cread{padding-top:clamp(20px,2.6vw,34px)}
.cread > .cnow{margin-top:0}

.cnow .clesson h2,.cnow .clesson h3,.cintro h2,.cintro h3{color:var(--blue)}
.cintro{margin-top:clamp(20px,2.4vw,30px);padding-top:0;border-top:0}
.cintro > h2{margin-top:0;font-size:clamp(19px,2vw,23px)}

.cnow{margin-top:clamp(22px,2.6vw,32px);padding-top:0;border-top:0}
.cnow-bar{display:flex;align-items:center;gap:16px;margin-bottom:8px;color:var(--fg-3);font-size:13.5px;font-weight:700}
.cnow-n{color:var(--blue)}
.cnow-d{display:inline-flex;align-items:center;gap:6px}
.cnow-d svg{width:15px;height:15px}
.cnow-nav{margin-inline-start:auto;display:flex;gap:8px}
.cnow-step{width:var(--step-s,38px);height:var(--step-s,38px);padding:0;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--blue);
  display:grid;place-items:center;cursor:pointer;transition:border-color var(--t),background var(--t)}
.cnow-step:hover:not(:disabled){border-color:var(--blue);background:var(--bg-2)}
.cnow-step:disabled{opacity:.38;cursor:default}
.cnow-step:focus-visible{outline:3px solid var(--blue-lt);outline-offset:2px}
.cnow-step svg{width:18px;height:18px}
.clesson > h2{margin-top:0;font-size:clamp(19px,2vw,23px)}
.js .clesson:not(.is-on){display:none}
.carticle ul.cnum{list-style:none;padding-inline-start:0;line-height:2.15}
.clead ol{margin:4px 0 0;padding-inline-start:24px;list-style:persian;color:var(--fg-2);font-size:15.5px;line-height:2.1}

.flnav{padding-block:clamp(36px,4.6vw,60px)}
.flsteps{display:flex;flex-wrap:wrap;gap:18px}
.flstep{flex:1 1 340px;max-width:560px;display:flex;align-items:center;gap:16px;padding:10px 10px 10px 14px;border-radius:24px;
  background:var(--surface);border:1px solid var(--line);color:var(--fg);text-decoration:none;
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset,0 16px 32px -22px rgba(17,43,74,.45);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.flstep.is-next{margin-inline-start:auto}
.flstep:hover{transform:translateY(-3px);border-color:rgba(0,105,180,.55);box-shadow:0 0 0 1px rgba(0,105,180,.25),0 22px 40px -22px rgba(0,105,180,.55)}
.flstep:focus-visible{outline:3px solid var(--blue-lt);outline-offset:3px}
.flstep-pic{flex:none;width:clamp(104px,10vw,136px);aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:var(--bg-2);
  box-shadow:0 8px 16px -10px rgba(17,43,74,.6)}
.flstep-pic img{display:block;width:100%;height:100%;object-fit:cover}
.flstep-txt{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.flstep-k{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800}
.flstep-k b{display:inline-grid;place-items:center;min-width:24px;height:24px;padding:0 7px;border-radius:999px;background:rgba(0,105,180,.1);font-size:12.5px}
.flstep-t{font-weight:800;font-size:15.5px;line-height:1.8;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.flstep-go{flex:none;display:grid;place-items:center;width:48px;height:48px;border-radius:50%;color:#fff;
  background:linear-gradient(180deg,#2aa4f0,#0a7fd0 50%,#0069b4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 4px 0 #00467a,0 12px 20px -10px rgba(0,105,180,.8);transition:transform .25s ease}
.flstep-go svg{width:22px;height:22px}
.flstep.is-prev .flstep-go{order:-1}
.flstep.is-prev .flstep-pic{order:2}
.flstep.is-next:hover .flstep-go{transform:translateX(-4px)}
.flstep.is-prev:hover .flstep-go{transform:translateX(4px)}
.flcards{display:grid;grid-template-columns:minmax(0,1fr);column-gap:20px;row-gap:30px}
@media(min-width:600px){.flcards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:900px){.flcards{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(min-width:1100px){.flcards{grid-template-columns:repeat(4,minmax(0,1fr));column-gap:24px}}
.ncard.is-lesson{--notch:76px;--pad:7px;border-radius:30px}
.ncard.is-lesson .ncard-cover{aspect-ratio:16/9;border-radius:23px 23px 23px 0}
.ncard.is-lesson .ncard-title{font-size:15px;line-height:1.85}
.ncard.is-lesson .ncard-badge{padding-top:10px}
.ncard.is-lesson.is-current{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue)}
@media (prefers-reduced-motion:reduce){.flstep,.flstep-go{transition:none}.flstep:hover,.flstep:hover .flstep-go{transform:none}}