:root{--lng-ink:#102a43;--lng-blue:#1d5fd1;--lng-teal:#0f9f8f;--lng-violet:#7157d9;--lng-orange:#f59e0b;--lng-soft:#f2f7fc;--lng-line:#d9e6f2}
body.site-testngoaingu{background:#f7fafc;color:var(--lng-ink)}
.site-testngoaingu .public-header{background:rgba(255,255,255,.94);border-bottom:1px solid #dce8f2;box-shadow:0 10px 32px rgba(16,42,67,.06);backdrop-filter:blur(16px)}
.site-testngoaingu .public-nav a{font-weight:750}.site-testngoaingu .header-cta{background:linear-gradient(135deg,var(--lng-blue),#2c7de9);box-shadow:0 10px 22px rgba(29,95,209,.22)}
.lng-home{overflow:hidden;background:linear-gradient(180deg,#f7fbff 0,#fff 26%,#f5faf9 100%)}
.lng-hero{position:relative;padding:88px 0 76px;background:radial-gradient(circle at 15% 5%,rgba(35,132,225,.18),transparent 34%),radial-gradient(circle at 88% 26%,rgba(15,159,143,.16),transparent 31%),linear-gradient(135deg,#f8fbff 0,#edf7f6 100%);border-bottom:1px solid var(--lng-line)}
.lng-hero:after{content:"";position:absolute;inset:auto -10% -250px 52%;height:470px;border:90px solid rgba(29,95,209,.04);border-radius:50%;pointer-events:none}
.lng-hero-grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(420px,.94fr);gap:72px;align-items:center;position:relative;z-index:1}
.lng-pill{display:inline-flex;align-items:center;gap:9px;padding:9px 14px;border:1px solid rgba(29,95,209,.18);border-radius:99px;background:rgba(255,255,255,.72);color:var(--lng-blue);font-size:13px;font-weight:850;letter-spacing:.12em}
.lng-hero-copy h1{margin:26px 0 20px;max-width:780px;font-size:clamp(46px,5.2vw,76px);line-height:.99;letter-spacing:-.055em;font-weight:850}.lng-hero-copy h1 em{font-style:normal;color:var(--lng-blue)}
.lng-hero-copy>p{max-width:680px;color:#59738b;font-size:19px;line-height:1.72}.lng-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.lng-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:52px;padding:0 22px;border-radius:14px;font-weight:800;text-decoration:none;transition:.2s}.lng-button.primary{color:#fff;background:linear-gradient(135deg,var(--lng-blue),#287cdd);box-shadow:0 14px 30px rgba(29,95,209,.23)}.lng-button.secondary{color:var(--lng-ink);background:#fff;border:1px solid var(--lng-line)}.lng-button:hover{transform:translateY(-2px)}
.lng-proof{display:flex;flex-wrap:wrap;gap:22px;margin-top:25px;color:#527088;font-size:14px;font-weight:650}.lng-proof i{display:inline-grid;place-items:center;width:21px;height:21px;margin-right:6px;border-radius:50%;color:#fff;background:var(--lng-teal)}
.lng-hero-panel{position:relative;min-height:480px;display:grid;place-items:center}.lng-orbit{position:absolute;border:1px solid rgba(29,95,209,.13);border-radius:50%}.lng-orbit.one{width:470px;height:470px}.lng-orbit.two{width:330px;height:330px;border-color:rgba(15,159,143,.19)}
.lng-dashboard{position:relative;width:min(100%,480px);padding:30px;border:1px solid rgba(255,255,255,.85);border-radius:28px;background:rgba(255,255,255,.85);box-shadow:0 34px 70px rgba(23,63,93,.16);backdrop-filter:blur(18px);transform:rotate(1.5deg)}
.lng-dashboard header{display:flex;justify-content:space-between;color:var(--lng-blue);font-size:12px;font-weight:850;letter-spacing:.1em}.lng-dashboard header b{font-size:22px;color:#b8c9da}.lng-dashboard h2{margin:30px 0 24px;font-size:27px;line-height:1.45}.lng-dashboard h2 i{color:#9bb0c3;font-size:19px}.lng-dashboard-skills{display:grid;grid-template-columns:1fr 1fr;gap:10px}.lng-dashboard-skills span{display:flex;align-items:center;gap:9px;padding:14px;border-radius:13px;background:#edf5ff;font-weight:750}.lng-dashboard-skills span:nth-child(2),.lng-dashboard-skills span:nth-child(3){background:#edf9f6}.lng-dashboard-skills i{color:var(--lng-blue);font-size:21px}.lng-dashboard footer{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:28px;padding-top:22px;border-top:1px solid var(--lng-line)}.lng-dashboard footer div{display:grid}.lng-dashboard footer b{font-size:25px}.lng-dashboard footer small{color:#7890a4}
.lng-section{padding:92px 0}.lng-section-head{display:flex;justify-content:space-between;align-items:end;gap:36px;margin-bottom:38px}.lng-section-head>div{max-width:780px}.lng-section-head span,.lng-process>div>div>span{color:var(--lng-blue);font-size:13px;font-weight:900;letter-spacing:.15em}.lng-section-head h2{margin:9px 0 10px;font-size:clamp(32px,4vw,50px);line-height:1.07;letter-spacing:-.035em}.lng-section-head p{margin:0;color:#658096;font-size:17px;line-height:1.65}.lng-section-head>a{white-space:nowrap;color:var(--lng-blue);font-weight:800;text-decoration:none}
.lng-language-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.lng-language-card{padding:10px;border:1px solid var(--lng-line);border-radius:22px;background:linear-gradient(135deg,#fff,#f4f9ff);box-shadow:0 16px 45px rgba(16,42,67,.06)}.lng-language-card.tone-1{background:linear-gradient(135deg,#fff,#f1fbf8)}.lng-language-card.tone-2{background:linear-gradient(135deg,#fff,#f7f4ff)}.lng-language-card.tone-3{background:linear-gradient(135deg,#fff,#fff8ed)}
.lng-language-main{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:16px;color:var(--lng-ink);text-decoration:none}.lng-language-icon{display:grid;place-items:center;width:62px;height:62px;border-radius:17px;background:color-mix(in srgb,var(--language-color) 12%,white);color:var(--language-color);font-size:27px}.lng-language-main>span:nth-child(2){display:grid;gap:2px}.lng-language-main small{color:#8197aa;font-size:10px;font-weight:900;letter-spacing:.13em}.lng-language-main strong{font-size:21px}.lng-language-main em{color:#71899d;font-size:13px;font-style:normal}.lng-language-main>i{font-size:22px;color:var(--lng-blue)}.lng-language-card nav{display:flex;flex-wrap:wrap;gap:7px;padding:0 16px 15px 94px}.lng-language-card nav a{padding:6px 10px;border:1px solid #dce7f1;border-radius:99px;background:#fff;color:#46627a;font-size:12px;font-weight:800;text-decoration:none}.lng-language-card nav a:hover{border-color:var(--lng-blue);color:var(--lng-blue)}
.lng-skills{background:#0f2d46;color:#fff;position:relative}.lng-skills:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 0,rgba(30,181,161,.2),transparent 34%),radial-gradient(circle at 0 100%,rgba(54,118,223,.2),transparent 30%)}.lng-skills .public-container{position:relative}.lng-section-head.light span{color:#63dac8}.lng-section-head.light p{color:#aac0d2}.lng-skill-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.lng-skill-grid>a{position:relative;min-height:310px;padding:25px;border:1px solid rgba(255,255,255,.14);border-radius:20px;background:rgba(255,255,255,.06);color:#fff;text-decoration:none;transition:.2s}.lng-skill-grid>a:hover{background:rgba(255,255,255,.11);transform:translateY(-5px)}.lng-skill-grid>a>b{position:absolute;right:22px;top:19px;color:rgba(255,255,255,.24);font-size:22px}.lng-skill-grid>a>i{display:grid;place-items:center;width:54px;height:54px;margin-bottom:40px;border-radius:16px;background:#fff;color:var(--lng-blue);font-size:25px}.lng-skill-grid strong{display:block;font-size:27px}.lng-skill-grid p{color:#b9cada;line-height:1.6}.lng-skill-grid span{position:absolute;left:25px;bottom:24px;color:#73e0d0;font-weight:800}
.lng-featured{background:#f4f8fc}.lng-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.lng-feature-grid>a{position:relative;min-height:230px;padding:25px;border:1px solid var(--lng-line);border-radius:20px;background:#fff;color:var(--lng-ink);text-decoration:none;box-shadow:0 12px 36px rgba(16,42,67,.05)}.lng-feature-index{position:absolute;right:22px;top:18px;color:#d6e1ea;font-size:30px;font-weight:900}.lng-feature-grid small{display:block;max-width:80%;color:var(--lng-teal);font-weight:800}.lng-feature-grid h3{margin:28px 0 35px;font-size:20px;line-height:1.45}.lng-feature-grid footer{position:absolute;left:25px;right:25px;bottom:22px;display:flex;gap:14px;align-items:center;color:#7890a4;font-size:13px}.lng-feature-grid footer>i{margin-left:auto;color:var(--lng-blue);font-size:20px}
.lng-process{background:#fff}.lng-process-shell{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;padding:56px;border-radius:30px;background:linear-gradient(135deg,#1c63d3,#163b73);color:#fff;box-shadow:0 24px 60px rgba(26,79,148,.22)}.lng-process h2{margin:10px 0 15px;font-size:45px}.lng-process p{color:#c9d8ea;line-height:1.7}.lng-button.light{margin-top:20px;background:#fff;color:#174f9d}.lng-process ol{display:grid;gap:12px;margin:0;padding:0;list-style:none}.lng-process li{display:flex;gap:20px;align-items:center;padding:19px 21px;border:1px solid rgba(255,255,255,.14);border-radius:17px;background:rgba(255,255,255,.08)}.lng-process li>b{color:#6ee1d0;font-size:22px}.lng-process li span{display:grid}.lng-process li strong{font-size:18px}.lng-process li small{margin-top:4px;color:#bdd0e1}
.lng-articles{padding-top:30px}.lng-article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.lng-empty{grid-column:1/-1;padding:50px;border:1px dashed #b9cbda;border-radius:20px;text-align:center;color:#607a90}
.site-testngoaingu .catalog-public-page,.site-testngoaingu .language-library{background:linear-gradient(180deg,#edf6ff 0,#f8fbfd 340px,#fff 700px)}.site-testngoaingu .catalog-public-hero,.site-testngoaingu .library-hero{border-color:#cbdff0;background:linear-gradient(135deg,#0f3150,#1e69c8);color:#fff;box-shadow:0 22px 54px rgba(18,64,108,.16)}.site-testngoaingu .catalog-public-hero p,.site-testngoaingu .catalog-public-hero .public-eyebrow{color:#d7eaff}.site-testngoaingu .catalog-public-stats span{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2)}
@media(max-width:991px){.lng-hero-grid{grid-template-columns:1fr;gap:28px}.lng-hero-panel{min-height:390px}.lng-skill-grid{grid-template-columns:repeat(2,1fr)}.lng-feature-grid{grid-template-columns:repeat(2,1fr)}.lng-process-shell{grid-template-columns:1fr;gap:35px}.lng-article-grid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.lng-hero{padding:48px 0}.lng-hero-copy h1{font-size:43px}.lng-hero-copy>p{font-size:16px}.lng-hero-actions{display:grid}.lng-button{width:100%}.lng-proof{display:grid;gap:10px}.lng-hero-panel{min-height:340px}.lng-orbit.one{width:340px;height:340px}.lng-orbit.two{width:250px;height:250px}.lng-dashboard{padding:20px;border-radius:22px}.lng-dashboard h2{font-size:20px}.lng-dashboard footer small{font-size:10px}.lng-section{padding:62px 0}.lng-section-head{display:block}.lng-section-head h2{font-size:34px}.lng-section-head>a{display:inline-flex;margin-top:16px}.lng-language-grid,.lng-skill-grid,.lng-feature-grid,.lng-article-grid{grid-template-columns:1fr}.lng-language-card nav{padding-left:16px}.lng-skill-grid>a{min-height:265px}.lng-process-shell{padding:30px 20px;border-radius:22px}.lng-process h2{font-size:34px}}
@media(max-width:430px){.lng-dashboard-skills{grid-template-columns:1fr 1fr}.lng-dashboard footer{gap:4px}.lng-dashboard footer b{font-size:20px}.lng-language-main{grid-template-columns:auto 1fr}.lng-language-main>i{display:none}.lng-language-icon{width:52px;height:52px}.lng-process li{align-items:flex-start}}