:root{--bg:#F5F7FD;--surface:#FFFFFF;--surface-2:#EEF2FC;--surface-3:#E3E9FA;--line:rgba(17,32,89,.1);--line-2:rgba(17,32,89,.2);--ink:#0B1437;--muted:#4D5784;--faint:#717BA6;--blue:#2D5BFF;--blue-ink:#1D44D8;--sky:#0E9BB5;--navy:#0A1440;--ok:#0B8F63;--warn:#B4520C;--err:#C8243F;--ok-bg:#E3F6EE;--err-bg:#FCE8EC;--warn-bg:#FDF0E2;--blue-bg:#E8EEFF;--shadow:0 18px 44px -22px rgba(17,32,89,.32);--r-lg:20px;--r-md:14px;--r-sm:10px;--font:"Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}img,svg{max-width:100%;display:block}a{color:var(--blue-ink)}h1,h2,h3,h4{font-weight:600;letter-spacing:-.03em;line-height:1.1;margin:0;color:var(--ink)}p{margin:0}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}.wrap{width:min(1160px,100% - 32px);margin-inline:auto}.narrow{width:min(720px,100% - 32px);margin-inline:auto}.muted{color:var(--muted)}.faint{color:var(--faint)}.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px}.skip:focus{top:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:46px;padding:0 20px;border-radius:12px;border:1px solid transparent;font-weight:600;font-size:.98rem;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,box-shadow .15s}.btn svg{flex:none}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px -12px var(--blue)}.btn-primary:hover{background:var(--blue-ink)}.btn-ghost{background:var(--surface);border-color:var(--line-2);color:var(--ink)}.btn-ghost:hover{border-color:var(--blue)}.btn-quiet{background:transparent;color:var(--muted);padding:0 10px}.btn-quiet:hover{color:var(--ink)}.btn-danger{background:var(--err);color:#fff}.btn-sm{min-height:38px;padding:0 14px;font-size:.9rem;border-radius:10px}.btn-block{width:100%}.btn[disabled],.btn[aria-disabled=true]{opacity:.55;cursor:not-allowed;box-shadow:none}.link{background:none;border:0;padding:0;color:var(--blue-ink);text-decoration:underline;font-weight:500}.site-head{position:sticky;top:0;z-index:50;background:#f5f7fddb;backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}.head-in{display:flex;align-items:center;gap:24px;height:68px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}.brand b{font-size:1.12rem;letter-spacing:-.03em;font-weight:700;display:block;line-height:1.1}.brand small{display:block;font-size:.58rem;letter-spacing:.16em;color:var(--faint);font-weight:500}.mainnav{display:flex;gap:22px;margin-left:8px}.mainnav a{color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:500}.mainnav a:hover,.mainnav a[aria-current=page]{color:var(--ink)}.head-end{margin-left:auto;display:flex;align-items:center;gap:8px}.user-chip{display:flex;align-items:center;gap:8px;padding:4px 12px 4px 4px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:.9rem;font-weight:600;text-decoration:none;color:var(--ink)}.user-chip img,.user-chip .ini{width:30px;height:30px;border-radius:50%;object-fit:cover;background:var(--blue-bg);color:var(--blue-ink);display:grid;place-items:center;font-size:.8rem}.menu-btn{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-2);background:var(--surface);align-items:center;justify-content:center}@media(max-width:900px){.mainnav{display:none;position:absolute;left:0;right:0;top:68px;flex-direction:column;gap:0;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 16px 16px;margin:0}.mainnav.open{display:flex}.mainnav a{padding:12px 4px;border-bottom:1px solid var(--line)}.menu-btn{display:inline-flex}.head-cta{display:none}}@media(max-width:420px){.brand small,.user-chip span{display:none}.user-chip{padding:4px}}.langu{display:block;flex:none}.langu .eye{transform-origin:center;transform-box:fill-box}.langu.blink .eye{animation:blink 5s infinite}@keyframes blink{0%,94%,to{transform:scaleY(1)}96%{transform:scaleY(.1)}}.langu.talk .wave rect{animation:wv .8s ease-in-out infinite;transform-box:fill-box;transform-origin:center}.langu.talk .wave rect:nth-child(2){animation-delay:.12s}.langu.talk .wave rect:nth-child(3){animation-delay:.24s}@keyframes wv{50%{transform:scaleY(2.2)}}.status{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;color:var(--muted)}.status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok)}.status.off:before{background:var(--faint)}.section{padding:96px 0}.section.tight{padding-top:0}.sec-head{max-width:700px;margin-bottom:44px}.sec-head h2{font-size:clamp(1.75rem,3.4vw,2.6rem)}.sec-head p{margin-top:14px;font-size:1.08rem;color:var(--muted);max-width:58ch}.eyebrow{display:inline-block;font-size:.85rem;font-weight:600;color:var(--blue-ink);margin-bottom:12px}@media(max-width:640px){.section{padding:68px 0}.sec-head{margin-bottom:30px}}.hero{padding:64px 0 72px;position:relative;isolation:isolate}.hero:before{content:"";position:absolute;inset:-120px 0 auto;height:640px;z-index:-1;background:radial-gradient(560px 360px at 78% 34%,rgba(45,91,255,.13),transparent 70%),radial-gradient(420px 260px at 8% 0%,rgba(14,155,181,.1),transparent 70%)}.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center}.hero h1{font-size:clamp(2.5rem,5.6vw,4.4rem);letter-spacing:-.045em;line-height:1.02}.hero .lede{font-size:1.16rem;color:var(--muted);max-width:40ch;margin:22px 0 30px}.cta-row{display:flex;flex-wrap:wrap;gap:12px}.reassure{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:20px;font-size:.88rem;color:var(--muted)}.reassure span{display:inline-flex;align-items:center;gap:6px}.tick{width:16px;height:16px;color:var(--ok);flex:none}.hero-art{position:relative}.hero-robot{position:absolute;left:-34px;top:-40px;z-index:2;filter:drop-shadow(0 18px 30px rgba(17,32,89,.22))}@media(max-width:980px){.hero-grid{grid-template-columns:1fr;gap:44px}.hero{padding-top:36px}.hero-robot{left:-4px;top:-46px}.hero-robot svg{width:84px;height:auto}.lesson-head{padding-left:88px}}.lesson{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.lesson-head{display:flex;align-items:center;gap:12px;padding:14px 18px 14px 96px;border-bottom:1px solid var(--line);min-height:62px}.lesson-head b{font-size:.98rem}.lesson-head .tag{margin-left:auto}.tag{font-size:.78rem;padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--muted);font-weight:500;white-space:nowrap}.tag.blue{background:var(--blue-bg);color:var(--blue-ink)}.tag.ok{background:var(--ok-bg);color:var(--ok)}.tag.warn{background:var(--warn-bg);color:var(--warn)}.chat{padding:18px;display:flex;flex-direction:column;gap:10px}.msg{max-width:88%;padding:11px 14px;border-radius:16px;font-size:.96rem;line-height:1.5}.msg.ai{background:var(--surface-2);border-top-left-radius:6px}.msg.me{align-self:flex-end;background:var(--blue);color:#fff;border-top-right-radius:6px}.fix-card{border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:var(--surface);font-size:.92rem;display:grid;gap:6px;max-width:94%}.fix-card .row{display:flex;gap:8px;align-items:baseline}.fix-card s{color:var(--err);text-decoration-thickness:2px}.fix-card ins{color:var(--ok);text-decoration:none;font-weight:600}.fix-card .why{color:var(--muted)}.demo-note{font-size:.8rem;color:var(--faint);padding:0 18px 14px}.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.quotes{list-style:none;margin:0;padding:0;display:grid;gap:10px}.quotes li{font-size:1.06rem;padding:15px 18px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface)}.answer{padding:32px;border-radius:var(--r-lg);background:var(--navy);color:#e9eeff}.answer h3{color:#fff;font-size:1.6rem}.answer p{margin-top:12px;color:#b9c3ea}.answer ul{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}.answer li{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:baseline}.answer li s{color:#7f8bb8}.answer .tick{color:#5ee0b0}@media(max-width:900px){.split{grid-template-columns:1fr}}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.feature{padding:24px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;gap:10px}.feature .ic{width:42px;height:42px;border-radius:12px;background:var(--blue-bg);color:var(--blue-ink);display:grid;place-items:center}.feature .ic svg{width:22px;height:22px}.feature h3{font-size:1.1rem;letter-spacing:-.01em}.feature p{color:var(--muted);font-size:.96rem}.feature .tag{align-self:flex-start;margin-top:auto}.feature.wide{grid-column:span 2;flex-direction:row;align-items:center;gap:20px}@media(max-width:900px){.features{grid-template-columns:1fr 1fr}.feature.wide{grid-column:span 2}}@media(max-width:600px){.features{grid-template-columns:1fr}.feature.wide{grid-column:auto;flex-direction:column;align-items:flex-start}}.frame{border-radius:24px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}.frame-bar{display:flex;align-items:center;gap:7px;padding:11px 16px;border-bottom:1px solid var(--line);background:var(--surface-2)}.frame-bar i{width:10px;height:10px;border-radius:50%;background:var(--line-2)}.frame-bar span{margin-left:10px;font-size:.78rem;color:var(--faint)}.frame-bar .tag{margin-left:auto}.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:s}.steps li{padding:22px;border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--line);position:relative}.steps li:before{counter-increment:s;content:counter(s);width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--blue-bg);color:var(--blue-ink);font-weight:700;margin-bottom:14px}.steps h3{font-size:1.06rem;letter-spacing:-.01em}.steps p{margin-top:8px;color:var(--muted);font-size:.95rem}@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}@media(max-width:540px){.steps{grid-template-columns:1fr}}.plans{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:860px}.plan{padding:28px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column}.plan.main{border:2px solid var(--blue)}.plan h3{font-size:1.25rem;display:flex;align-items:center;gap:10px}.plan .price{font-size:2rem;font-weight:700;letter-spacing:-.03em;margin:14px 0 4px}.plan .price small{font-size:.95rem;font-weight:400;color:var(--muted)}.plan ul{list-style:none;padding:0;margin:20px 0 24px;display:grid;gap:10px;font-size:.96rem}.plan li{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:baseline}.plan .btn{margin-top:auto}@media(max-width:720px){.plans{grid-template-columns:1fr}}.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.post-card{padding:24px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface);text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px;transition:border-color .15s}.post-card:hover{border-color:var(--blue)}.post-card h3{font-size:1.1rem;letter-spacing:-.015em;line-height:1.3}.post-card p{color:var(--muted);font-size:.93rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-card .meta{margin-top:auto;font-size:.82rem;color:var(--faint)}@media(max-width:900px){.posts{grid-template-columns:1fr}}.about{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;padding:40px;border-radius:24px;background:var(--surface);border:1px solid var(--line)}.about p{color:var(--muted);margin-top:12px;max-width:62ch}@media(max-width:760px){.about{grid-template-columns:1fr;padding:28px}}.faq{max-width:800px}.faq details{border-bottom:1px solid var(--line)}.faq summary{list-style:none;padding:20px 40px 20px 0;font-size:1.05rem;font-weight:600;cursor:pointer;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg);transition:transform .2s}.faq details[open] summary:after{transform:translateY(-30%) rotate(-135deg)}.faq details p{padding:0 0 20px;color:var(--muted);max-width:66ch}.final{text-align:center;padding:72px 24px;border-radius:28px;background:var(--navy);color:#e9eeff;margin-bottom:72px;position:relative;overflow:hidden}.final h2{color:#fff;font-size:clamp(1.8rem,4vw,2.8rem);max-width:20ch;margin:18px auto 0}.final p{color:#b9c3ea;margin:14px auto 26px;max-width:46ch}.final .langu{margin:0 auto}.site-foot{border-top:1px solid var(--line);padding:52px 0 36px;font-size:.93rem;background:var(--surface)}.foot-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:28px}.foot-grid h4{font-size:.9rem;margin-bottom:12px}.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.foot-grid a{color:var(--muted);text-decoration:none}.foot-grid a:hover{color:var(--ink)}.foot-bottom{margin-top:36px;color:var(--faint);font-size:.84rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}.article{padding:56px 0 80px}.article h1{font-size:clamp(1.9rem,4.2vw,2.8rem);letter-spacing:-.035em}.article .meta{color:var(--faint);font-size:.9rem;margin-top:14px}.prose{margin-top:32px;font-size:1.06rem;line-height:1.75}.prose p{margin:0 0 18px}.prose h2{font-size:1.45rem;margin:36px 0 14px;letter-spacing:-.02em}.prose ul{padding-left:22px;margin:0 0 18px}.prose li{margin-bottom:6px}.draft-note{margin-top:24px;padding:14px 16px;border-radius:var(--r-md);background:var(--warn-bg);color:var(--warn);font-size:.92rem}.crumbs{font-size:.88rem;color:var(--faint);margin-bottom:18px}.crumbs a{color:var(--muted)}.article-cta{margin-top:40px;padding:26px;border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--line);display:flex;gap:18px;align-items:center;flex-wrap:wrap}.article-cta p{flex:1;min-width:220px;color:var(--muted)}.app-main{min-height:calc(100vh - 68px);padding:32px 0 80px}.app-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:24px}.app-head h1{font-size:clamp(1.5rem,3vw,2.1rem)}.app-head p{color:var(--muted);margin-top:6px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;min-width:0}.card h2{font-size:1.02rem;letter-spacing:-.01em;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.card h2 small{font-weight:400;color:var(--faint);font-size:.82rem}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.s4{grid-column:span 4}.s5{grid-column:span 5}.s6{grid-column:span 6}.s7{grid-column:span 7}.s8{grid-column:span 8}.s12{grid-column:span 12}@media(max-width:980px){.s4,.s5,.s6,.s7,.s8{grid-column:span 12}}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:14px}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px}.stat .k{font-size:.84rem;color:var(--muted)}.stat .v{font-size:1.7rem;font-weight:700;letter-spacing:-.03em;margin-top:4px;font-variant-numeric:tabular-nums}.stat .v small{font-size:.9rem;font-weight:500;color:var(--faint)}@media(max-width:760px){.stats{grid-template-columns:1fr 1fr}}.meter{display:grid;gap:6px}.meter-row{display:flex;justify-content:space-between;font-size:.92rem}.meter-row b{font-variant-numeric:tabular-nums}.bar{height:8px;border-radius:8px;background:var(--surface-3);overflow:hidden}.bar i{display:block;height:100%;border-radius:inherit;background:var(--blue);transition:width .6s cubic-bezier(.2,.8,.2,1)}.bar.ok i{background:var(--ok)}.meters{display:grid;gap:14px}.level-big{display:flex;align-items:baseline;gap:12px;font-size:2.6rem;font-weight:700;letter-spacing:-.04em}.level-big span{font-size:1rem;font-weight:500;color:var(--muted);letter-spacing:0}.chart{display:flex;align-items:flex-end;gap:6px;height:120px;padding-top:8px}.chart div{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:6px;height:100%;font-size:.7rem;color:var(--faint);min-width:0}.chart i{width:100%;max-width:26px;border-radius:6px 6px 3px 3px;background:var(--blue);display:block;min-height:3px}.chart i.zero{background:var(--surface-3)}.chart .today i{background:var(--sky)}.list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.list li{display:flex;gap:12px;align-items:center;padding:12px 14px;border-radius:var(--r-md);background:var(--bg);border:1px solid var(--line)}.list li .grow{flex:1;min-width:0}.list small{display:block;color:var(--faint);font-size:.82rem}.empty{padding:22px;border-radius:var(--r-md);border:1px dashed var(--line-2);text-align:center;color:var(--muted);display:grid;gap:12px;justify-items:center}.next-card{display:flex;gap:18px;align-items:center;background:var(--navy);color:#e9eeff;border:0}.next-card h2{color:#fff;margin:0 0 6px}.next-card p{color:#b9c3ea}.next-card .grow{flex:1}@media(max-width:640px){.next-card{flex-direction:column;align-items:flex-start}}.seg{display:inline-flex;padding:3px;border-radius:12px;background:var(--surface-2);gap:2px;flex-wrap:wrap}.seg button{border:0;background:transparent;padding:7px 12px;border-radius:9px;font-size:.88rem;color:var(--muted);font-weight:500}.seg button[aria-pressed=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px #11205926}.auth-wrap{display:grid;place-items:start center;padding:48px 0 80px}.auth-card{width:min(440px,100%);background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:var(--shadow)}.auth-card h1{font-size:1.6rem;margin:14px 0 6px}.field{display:grid;gap:6px;margin-top:14px}.field label{font-size:.9rem;font-weight:600}.input{width:100%;min-height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--line-2);background:var(--surface);font-size:1rem}.input:focus{outline:3px solid rgba(45,91,255,.25);border-color:var(--blue)}textarea.input{padding:12px 14px;min-height:56px;resize:vertical}.divider{display:flex;align-items:center;gap:12px;color:var(--faint);font-size:.85rem;margin:18px 0}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}.alert{padding:12px 14px;border-radius:12px;font-size:.93rem;margin-top:14px}.alert.err{background:var(--err-bg);color:var(--err)}.alert.ok{background:var(--ok-bg);color:var(--ok)}.alert.info{background:var(--blue-bg);color:var(--blue-ink)}.alert.warn{background:var(--warn-bg);color:var(--warn)}.tabs2{display:grid;grid-template-columns:1fr 1fr;padding:4px;border-radius:12px;background:var(--surface-2);margin-top:18px}.tabs2 button{border:0;background:transparent;padding:9px;border-radius:9px;font-weight:600;color:var(--muted)}.tabs2 button[aria-selected=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px #11205926}.fine{font-size:.82rem;color:var(--faint);margin-top:16px}.test{width:min(680px,100%);margin:0 auto}.prog{height:6px;background:var(--surface-3);border-radius:6px;overflow:hidden}.prog i{display:block;height:100%;background:var(--blue);transition:width .3s}.prog-row{display:flex;justify-content:space-between;font-size:.86rem;color:var(--muted);margin:10px 0 28px}.q-langu{display:flex;gap:12px;align-items:flex-start;margin-bottom:22px}.q-langu .msg{max-width:none}.q h2{font-size:clamp(1.3rem,3vw,1.75rem);letter-spacing:-.02em;line-height:1.25}.passage{padding:16px 18px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);font-size:1.02rem;line-height:1.65;margin-bottom:16px}.opts{display:grid;gap:10px;margin-top:20px}.opt{text-align:left;padding:15px 16px;border-radius:var(--r-md);border:1px solid var(--line-2);background:var(--surface);font-size:1.02rem;display:flex;gap:14px;align-items:center}.opt:hover{border-color:var(--blue)}.opt kbd{font:600 .8rem var(--font);width:26px;height:26px;border-radius:7px;display:grid;place-items:center;border:1px solid var(--line-2);color:var(--muted);flex:none}.opt[aria-pressed=true]{border-color:var(--blue);background:var(--blue-bg)}.q-actions{display:flex;gap:10px;margin-top:24px;align-items:center;flex-wrap:wrap}.q-actions .right{margin-left:auto}.result-top{display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center}.badge-level{width:116px;height:116px;border-radius:28px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:2.6rem;font-weight:700;letter-spacing:-.04em}.scale{display:flex;gap:4px;margin-top:12px}.scale span{flex:1;text-align:center;font-size:.78rem;padding:5px 0;border-radius:7px;background:var(--surface-2);color:var(--faint);font-weight:600}.scale span.me{background:var(--blue);color:#fff}@media(max-width:560px){.result-top{grid-template-columns:1fr}.badge-level{width:92px;height:92px;font-size:2rem}}.roadmap{list-style:none;padding:0;display:grid;gap:0;border-left:2px solid var(--line-2);margin:0 0 0 8px}.roadmap li{padding:0 0 22px 22px;position:relative}.roadmap li:before{content:"";position:absolute;left:-8px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--surface);border:2px solid var(--blue)}.roadmap li:first-child:before{background:var(--blue)}.roadmap .wk{font-size:.82rem;color:var(--blue-ink);font-weight:600}.roadmap h3{font-size:1.02rem;letter-spacing:-.01em;margin:2px 0 4px}.roadmap p{color:var(--muted);font-size:.94rem}.chat-shell{display:grid;grid-template-columns:1fr 300px;gap:14px;align-items:start}.chat-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);display:flex;flex-direction:column;min-height:520px;max-height:calc(100vh - 170px)}.chat-top{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}.chat-log{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:10px}.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}.chat-input textarea{flex:1;min-height:48px;max-height:140px}.typing{display:inline-flex;gap:4px;padding:14px 16px}.typing i{width:6px;height:6px;border-radius:50%;background:var(--faint);animation:tp 1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes tp{50%{transform:translateY(-4px);opacity:.5}}.topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}.topic{padding:18px;border-radius:var(--r-md);border:1px solid var(--line-2);background:var(--surface);text-align:left;display:grid;gap:4px}.topic:hover{border-color:var(--blue)}.topic b{font-size:1rem}.topic span{color:var(--muted);font-size:.88rem}.side-notes{display:grid;gap:14px}@media(max-width:900px){.chat-shell{grid-template-columns:1fr}.chat-box{max-height:none;min-height:60vh}}.flash{text-align:center;padding:40px 24px;border-radius:24px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}.flash .word{font-size:clamp(2rem,6vw,3rem);font-weight:700;letter-spacing:-.03em}.flash .mean{margin-top:12px;font-size:1.2rem;color:var(--muted);min-height:1.6em}.flash .acts{display:flex;justify-content:center;gap:10px;margin-top:26px;flex-wrap:wrap}.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translate(-50%,calc(100% + 60px));visibility:hidden;background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-size:.93rem;z-index:80;transition:transform .25s;max-width:calc(100% - 32px)}.toast.on{transform:translate(-50%);visibility:visible}.loading{display:grid;place-items:center;min-height:40vh;color:var(--muted);gap:12px}.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--surface-3);border-top-color:var(--blue);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}
