@font-face{font-family:Overpass Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/overpass-cyrillic-ext-wght-normal.B1PfurAb.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Overpass Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/overpass-cyrillic-wght-normal.Bb0oHPsy.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Overpass Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/overpass-vietnamese-wght-normal.BfgOsjc9.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Overpass Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/overpass-latin-ext-wght-normal.DvafStyF.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Overpass Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/overpass-latin-wght-normal.qAR8M_co.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(/_astro/ibm-plex-sans-cyrillic-ext-wght-normal.d45eAU9y.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(/_astro/ibm-plex-sans-cyrillic-wght-normal.BAAhND-U.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(/_astro/ibm-plex-sans-greek-wght-normal.CmyJS8uq.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(/_astro/ibm-plex-sans-vietnamese-wght-normal.Dg1JeJN0.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(/_astro/ibm-plex-sans-latin-ext-wght-normal.CIII54If.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(/_astro/ibm-plex-sans-latin-wght-normal.IvpUvPa2.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Sans Arabic;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-arabic-arabic-400-normal.CyU-ddYS.woff2) format("woff2"),url(/_astro/ibm-plex-sans-arabic-arabic-400-normal.EA1o-u_Q.woff) format("woff")}@font-face{font-family:IBM Plex Sans Arabic;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-arabic-arabic-600-normal.0pRdybE_.woff2) format("woff2"),url(/_astro/ibm-plex-sans-arabic-arabic-600-normal.MJZ0liF5.woff) format("woff")}@font-face{font-family:IBM Plex Sans Arabic;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/ibm-plex-sans-arabic-arabic-700-normal.DrtBj6UE.woff2) format("woff2"),url(/_astro/ibm-plex-sans-arabic-arabic-700-normal.9rXc6cUL.woff) format("woff")}:root{--ink: #16191d;--ink-2: #3d434b;--muted: #5f6772;--paper: #f5f4ef;--card: #ffffff;--line: #dedbd2;--blue: #0b5cad;--blue-ink: #08457f;--blue-soft: #e6eff9;--yellow: #ffc72c;--yellow-soft: #fff5d6;--green: #0f7a43;--green-soft: #e3f3ea;--red: #b3261e;--red-soft: #fbe9e7;--radius: 14px;--shadow: 0 1px 2px rgba(22,25,29,.06), 0 6px 20px rgba(22,25,29,.06);--font: "IBM Plex Sans Variable", "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--display: "Overpass Variable", "Overpass", var(--font);--max: 1120px;color-scheme:light}[dir=rtl]{--font: "IBM Plex Sans Arabic", "IBM Plex Sans Variable", system-ui, sans-serif;--display: "IBM Plex Sans Arabic", "Overpass Variable", sans-serif}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font);font-size:17px;line-height:1.6;color:var(--ink);background:var(--paper)}[dir=rtl] body{line-height:1.8}img,svg,canvas{max-width:100%;display:block}a{color:var(--blue);text-underline-offset:3px}a:hover{color:var(--blue-ink)}:focus-visible{outline:3px solid var(--yellow);outline-offset:2px;border-radius:6px}h1,h2,h3{font-family:var(--display);line-height:1.15;letter-spacing:-.01em;margin:0 0 .5em}[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3{letter-spacing:0;line-height:1.4}h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800}h2{font-size:clamp(1.45rem,3vw,2rem);font-weight:800}h3{font-size:1.15rem;font-weight:700}p{margin:0 0 1em}.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}.skip{position:absolute;inset-inline-start:-999px;top:8px;background:var(--yellow);color:var(--ink);padding:8px 14px;border-radius:8px;z-index:99}.skip:focus{inset-inline-start:8px}.muted{color:var(--muted)}.term{font-family:var(--font);font-weight:600;background:var(--blue-soft);color:var(--blue-ink);padding:0 .35em;border-radius:5px;white-space:nowrap;unicode-bidi:isolate}[dir=rtl] .term{font-family:IBM Plex Sans Variable,sans-serif}.ltr{direction:ltr;unicode-bidi:isolate}.top{background:var(--ink);color:#fff;position:sticky;top:0;z-index:50}.top .wrap{display:flex;align-items:center;gap:16px;min-height:64px}.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:Overpass Variable,sans-serif;font-weight:900;font-size:1.35rem;letter-spacing:.02em}.brand-mark{width:36px;height:36px}.brand small{display:block;font-size:.68rem;font-weight:600;letter-spacing:.04em;color:#c9ced6;font-family:var(--font)}.nav{display:flex;gap:4px;margin-inline-start:auto;align-items:center}.nav a{color:#e9ecf0;text-decoration:none;padding:8px 12px;border-radius:8px;font-weight:600;font-size:.95rem}.nav a:hover,.nav a[aria-current=page]{background:#ffffff1a;color:#fff}.nav a[aria-current=page]{box-shadow:inset 0 -3px 0 var(--yellow)}.langs{display:flex;gap:2px;background:#ffffff14;border-radius:10px;padding:3px}.langs a{color:#dfe3e8;text-decoration:none;font-size:.85rem;font-weight:700;padding:5px 9px;border-radius:7px}.langs a[aria-current=true]{background:var(--yellow);color:var(--ink)}.menu-btn{display:none;margin-inline-start:auto;background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:8px;padding:7px 12px;font:inherit;font-weight:700}@media(max-width:900px){.menu-btn{display:block}.nav{display:none;position:absolute;inset-inline:0;top:64px;background:var(--ink);flex-direction:column;align-items:stretch;padding:8px 16px 16px;gap:2px;border-top:1px solid rgba(255,255,255,.1)}.nav.open{display:flex}.nav a{padding:12px}.langs{align-self:flex-start;margin-top:8px}}.strip{height:6px;background:repeating-linear-gradient(90deg,var(--yellow) 0 28px,transparent 28px 46px),var(--ink)}main{padding-bottom:64px}.page-head{padding:40px 0 20px}.page-head p{font-size:1.1rem;color:var(--ink-2);max-width:760px}.crumbs{font-size:.9rem;margin-bottom:10px}.crumbs a{text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:700;text-decoration:none;border-radius:12px;padding:12px 20px;border:2px solid transparent;cursor:pointer;min-height:48px;transition:transform .08s ease,background .15s}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-ink);color:#fff}.btn-yellow{background:var(--yellow);color:var(--ink)}.btn-yellow:hover{background:#f2b800;color:var(--ink)}.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}.btn-ghost:hover{border-color:var(--ink-2);color:var(--ink)}.btn-small{padding:7px 12px;min-height:38px;font-size:.9rem;border-radius:10px}.btn[disabled]{opacity:.45;cursor:not-allowed}.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.hero{background:var(--blue);color:#fff;position:relative;overflow:hidden}.hero .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;padding-top:56px;padding-bottom:56px;align-items:center}.hero h1{color:#fff}.hero p{font-size:1.12rem;color:#e3edf8;max-width:620px}.kicker{display:inline-block;font-weight:700;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;color:#ffe08a;margin-bottom:12px}[dir=rtl] .kicker{letter-spacing:0}.hero-sign{background:var(--blue-ink);border:4px solid #fff;border-radius:22px;padding:22px;box-shadow:0 0 0 6px var(--blue-ink)}.hero-sign .sign-row{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid rgba(255,255,255,.25);padding:10px 0;font-family:var(--display);font-weight:800;font-size:1.2rem}.hero-sign .sign-row:last-child{border:0}.hero-sign .sign-row span:last-child{color:var(--yellow);font-size:1.8rem}@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;padding-top:36px;padding-bottom:40px}}.section{padding:48px 0 8px}.grid{display:grid;gap:16px}.g2{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.g3{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.g4{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card h3{margin-bottom:.35em}.card p:last-child{margin-bottom:0}a.card{color:inherit;text-decoration:none;display:block;transition:border-color .15s,transform .1s}a.card:hover{border-color:var(--blue);transform:translateY(-2px)}.step-num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--yellow);font-family:Overpass Variable,sans-serif;font-weight:900;margin-bottom:10px}.test-card{border-top:6px solid var(--blue)}.test-card.ab{border-top-color:var(--yellow)}.test-card.cv{border-top-color:var(--green)}.badge{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--blue-soft);color:var(--blue-ink)}.badge.yellow{background:var(--yellow-soft);color:#6b4e00}.badge.green{background:var(--green-soft);color:var(--green)}.badge.red{background:var(--red-soft);color:var(--red)}.badge.gray{background:#eceae4;color:var(--ink-2)}.notice{border-inline-start:6px solid var(--yellow);background:var(--yellow-soft);border-radius:10px;padding:14px 16px}.notice.blue{border-color:var(--blue);background:var(--blue-soft)}.notice.red{border-color:var(--red);background:var(--red-soft)}.fed li{margin-bottom:8px}.track{margin-bottom:36px}.track-head{display:flex;justify-content:space-between;align-items:end;gap:12px;flex-wrap:wrap;margin-bottom:14px}.lesson-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.lesson-item a{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:inherit}.lesson-item a:hover{border-color:var(--blue)}.lesson-no{width:44px;height:44px;border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:Overpass Variable,sans-serif;font-weight:900}.lesson-item.done .lesson-no{background:var(--green)}.lesson-meta{font-size:.85rem;color:var(--muted)}.lesson{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}.lesson article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.lesson article h2{font-size:1.35rem;margin-top:1.4em}.lesson article h2:first-of-type{margin-top:.4em}.lesson article ul{padding-inline-start:1.2em}.lesson article li{margin-bottom:.45em}.lesson .intro{font-size:1.12rem;color:var(--ink-2)}.lesson aside{position:sticky;top:84px;display:grid;gap:14px}.keys{list-style:none;padding:0;margin:0;display:grid;gap:8px}.keys li{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center}.keys .v{font-family:Overpass Variable,sans-serif;font-weight:900;background:var(--yellow);border:2px solid var(--ink);border-radius:8px;padding:2px 8px;min-width:64px;text-align:center;direction:ltr;unicode-bidi:isolate}.lesson-nav{display:flex;justify-content:space-between;gap:10px;margin-top:20px;flex-wrap:wrap}@media(max-width:900px){.lesson{grid-template-columns:1fr}.lesson aside{position:static}.lesson article{padding:20px}}.quiz{min-height:460px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.quiz-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;font-size:.9rem;color:var(--muted)}.bar{height:8px;background:#ebe8e0;border-radius:99px;overflow:hidden;margin-bottom:18px}.bar i{display:block;height:100%;background:var(--blue);width:0;transition:width .25s}.q-text{font-size:1.18rem;font-weight:600;margin-bottom:14px}.q-tr{background:var(--blue-soft);border-radius:10px;padding:10px 14px;margin:-4px 0 14px;color:var(--blue-ink)}.opts{display:grid;gap:10px;margin-bottom:14px}.opt{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start;text-align:start;width:100%;background:#fff;border:2px solid var(--line);border-radius:12px;padding:12px 14px;font:inherit;color:inherit;cursor:pointer}.opt:hover{border-color:var(--ink-2)}.opt .k{width:30px;height:30px;border-radius:8px;background:#efede7;display:grid;place-items:center;font-weight:800;font-family:Overpass Variable,sans-serif}.opt .tr{display:block;color:var(--muted);font-size:.92rem;margin-top:2px}.opt[aria-pressed=true]{border-color:var(--blue);background:var(--blue-soft)}.opt.right{border-color:var(--green);background:var(--green-soft)}.opt.right .k{background:var(--green);color:#fff}.opt.bad{border-color:var(--red);background:var(--red-soft)}.opt.bad .k{background:var(--red);color:#fff}.feedback{border-radius:12px;padding:14px 16px;margin-bottom:14px}.feedback.ok{background:var(--green-soft)}.feedback.no{background:var(--red-soft)}.feedback strong{display:block;margin-bottom:4px}.result{text-align:center;padding:10px 0}.result .big{font-family:Overpass Variable,sans-serif;font-weight:900;font-size:3.4rem;line-height:1}.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}.tabs button{font:inherit;font-weight:700;border:2px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;cursor:pointer;min-height:42px}.tabs button[aria-selected=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.search{width:100%;max-width:420px;font:inherit;padding:12px 16px;border-radius:12px;border:2px solid var(--line);background:#fff;min-height:48px}.search:focus{border-color:var(--blue);outline:none}.state-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;margin-top:18px}.state-link{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;text-decoration:none;color:inherit}.state-link:hover{border-color:var(--blue)}.state-code{font-family:Overpass Variable,sans-serif;font-weight:900;width:44px;height:32px;border-radius:6px;background:var(--green);color:#fff;display:grid;place-items:center;font-size:.95rem;border:2px solid #fff;box-shadow:0 0 0 2px var(--green);flex:none}.state-link .dot{margin-inline-start:auto;width:10px;height:10px;border-radius:50%;background:#c8c4b9;flex:none}.state-link .dot.english{background:var(--blue)}.state-link .dot.multi{background:var(--green)}.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.88rem;color:var(--muted);margin-top:12px}.legend span:before{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;margin-inline-end:6px;background:#c8c4b9}.legend .english:before{background:var(--blue)}.legend .multi:before{background:var(--green)}.facts{display:grid;gap:0}.facts>div{display:grid;grid-template-columns:220px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}.facts>div:last-child{border:0}.facts dt{font-weight:700}.facts dd{margin:0}@media(max-width:640px){.facts>div{grid-template-columns:1fr;gap:4px}}.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:10px}.steps li{counter-increment:s;display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start}.steps li:before{content:counter(s);width:32px;height:32px;border-radius:50%;background:var(--yellow);display:grid;place-items:center;font-weight:900;font-family:Overpass Variable,sans-serif}.flash{perspective:1000px;min-height:170px;cursor:pointer;background:none;border:0;padding:0;font:inherit;color:inherit;text-align:start;width:100%}.flash-in{position:relative;width:100%;min-height:170px;transition:transform .45s;transform-style:preserve-3d}.flash[aria-pressed=true] .flash-in{transform:rotateY(180deg)}.flash-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}.flash-front{background:var(--green);color:#fff;border:3px solid #fff;box-shadow:0 0 0 3px var(--green),var(--shadow)}.flash-front strong{font-family:Overpass Variable,sans-serif;font-size:1.4rem;direction:ltr}.flash-back{transform:rotateY(180deg);overflow:auto}.flash-back .en{font-size:.9rem;color:var(--muted);direction:ltr;text-align:left;margin-top:8px}.lab{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px}.stage{background:linear-gradient(#dbe7f3,#f5f4ef 70%);border:1px solid var(--line);border-radius:var(--radius);min-height:420px;position:relative;overflow:hidden;touch-action:none}.stage canvas{width:100%!important;height:100%!important;position:absolute;inset:0}.stage .msg{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);padding:20px;text-align:center}.parts{display:grid;gap:6px}.parts button{text-align:start;font:inherit;background:#fff;border:2px solid var(--line);border-radius:10px;padding:10px 12px;cursor:pointer}.parts button[aria-pressed=true]{border-color:var(--blue);background:var(--blue-soft)}.gauge{width:200px;height:200px;margin:0 auto}@media(max-width:900px){.lab{grid-template-columns:1fr}.stage{min-height:320px;aspect-ratio:4/3}}.foot{background:var(--ink);color:#c9ced6;padding:36px 0 28px;font-size:.92rem}.foot a{color:#fff}.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}@media(max-width:760px){.foot .cols{grid-template-columns:1fr}}.lang-pick{min-height:100vh;display:grid;place-items:center;background:var(--blue);color:#fff;text-align:center;padding:24px}.lang-pick a{display:block;background:#fff;color:var(--ink);border-radius:14px;padding:16px 24px;font-weight:800;font-size:1.2rem;text-decoration:none;min-width:240px;margin:8px auto}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}@media print{.top,.foot,.strip,.quiz,aside{display:none!important}body{background:#fff}}.test-card.dt{border-top-color:#6a4fb3}.test-card.tk{border-top-color:#0f7f8c}.test-card.hm{border-top-color:#e3701b}.test-card.pv{border-top-color:#1f8a3d}.test-card.sb{border-top-color:#f2b800}.test-card.sk{border-top-color:var(--ink)}.cov{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}.cov th,.cov td{text-align:start;padding:9px 12px;border-bottom:1px solid var(--line);font-size:.95rem;vertical-align:top}.cov th{background:#efede7}.ad{margin:24px 0;min-height:280px}.review{margin-top:28px}.review ol{padding-inline-start:1.3em}.review li{margin-bottom:14px}.review details{margin-top:4px}.review summary{cursor:pointer;color:var(--blue);font-weight:600;font-size:.92rem}.review .ans{background:var(--green-soft);border-radius:10px;padding:10px 12px;margin-top:6px}.review .opts-l{margin:6px 0 0;padding-inline-start:1.2em;list-style:upper-alpha;color:var(--ink-2)}
