:root{--navy:#0c376f;--text:#11233d;--muted:#5d708a;--line:#dfe8f1;--bg:#f8fbfd;--shadow:0 16px 34px rgba(39,70,105,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--text);background:#fff}.shell{width:min(1460px,calc(100% - 64px));margin:auto}
a{color:inherit;text-decoration:none}
.topbar{height:92px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.98);position:sticky;top:0;z-index:20}.nav-wrap{height:100%;display:grid;grid-template-columns:390px 1fr 320px;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:12px}.logo-mark{width:112px;height:64px;display:block;flex:0 0 auto}.logo-mark svg{width:100%;height:100%;display:block}.brand-name{font-size:29px;font-weight:800;color:#153e76;letter-spacing:-.7px;white-space:nowrap}.main-nav{display:flex;justify-content:center;gap:35px;align-items:center;font-weight:700;color:#15335f}.main-nav a{height:92px;display:flex;align-items:center;position:relative;white-space:nowrap}.main-nav a.active{color:#1477ef}.main-nav a.active:after{content:"";position:absolute;height:3px;border-radius:4px;background:#1b83ff;left:0;right:0;bottom:18px}.search-box{height:52px;border:1px solid #d9e4ef;border-radius:28px;display:flex;align-items:center;gap:12px;padding:0 20px;background:#fff;box-shadow:0 6px 24px rgba(29,60,95,.05)}.search-box svg{width:21px;fill:none;stroke:#24466f;stroke-width:2}.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:16px;color:#334d6e}.search-box input::placeholder{color:#71849f}
.hero{background:linear-gradient(90deg,#fff 0%,#fff 37%,#f2f8fc 100%);border-bottom:1px solid #e8eef5}.hero-grid{height:286px;display:grid;grid-template-columns:48% 52%;align-items:stretch}.hero-copy{display:flex;flex-direction:column;justify-content:center;padding-right:18px}.hero h1{font-size:72px;line-height:.94;margin:0 0 15px;color:#073b7d;letter-spacing:-3.4px}.hero h2{font-size:26px;line-height:1.12;margin:0 0 16px;color:#0d2d59}.hero p{font-size:20px;line-height:1.5;color:#536b89;margin:0}.hero-art{background-image:linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.28) 18%,rgba(255,255,255,0) 40%),url('assets/hero-wall.png');background-size:cover;background-position:center center;border-radius:0 0 0 22px}
.hub-section{padding:18px 0 14px;background:#fff}.hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px 16px}.hub-card{height:92px;border-radius:18px;padding:0 28px;display:grid;grid-template-columns:64px 1fr 22px;align-items:center;border:1px solid rgba(31,71,112,.08);box-shadow:0 8px 18px rgba(39,70,105,.04);transition:.2s transform,.2s box-shadow}.hub-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.hub-card strong{display:block;font-size:24px;color:#0c2f63;margin-bottom:7px}.hub-card small{font-size:16px;color:#536c8b}.hub-card b{font-size:38px;font-weight:400;color:#0e4278;line-height:1}.icon{width:48px;height:48px;display:flex;justify-content:center;align-items:center;line-height:1}.icon-svg svg{width:46px;height:46px;display:block}.red{background:linear-gradient(90deg,#fff1f2,#fff8f8)}.red .icon{color:#ef656d}.amber{background:linear-gradient(90deg,#fff6e8,#fffaf4)}.amber .icon{color:#ffad39}.green{background:linear-gradient(90deg,#f0f9f1,#f8fcf8)}.green .icon{color:#4db56b}.blue{background:linear-gradient(90deg,#eef6ff,#f8fbff)}.blue .icon{color:#378ce8}.purple{background:linear-gradient(90deg,#f6efff,#fbf8ff)}.purple .icon{color:#9257d9}.teal{background:linear-gradient(90deg,#edf9fa,#f8fcfc)}.teal .icon{color:#26959c}.yellow{background:linear-gradient(90deg,#fff7df,#fffdf5)}.yellow .icon{color:#c98000}.pink{background:linear-gradient(90deg,#fff0f4,#fff8fa)}.pink .icon{color:#df5d6e}.sky{background:linear-gradient(90deg,#eef7ff,#f8fbff)}.sky .icon{color:#3a89ca}.empty{text-align:center;color:var(--muted);padding:20px}
.support-section{padding:10px 0 14px}.support-card{min-height:150px;border-radius:20px;background:linear-gradient(90deg,#fff9ef,#fff7ed);border:1px solid #f4e6d3;display:grid;grid-template-columns:190px 1fr 420px;align-items:center;padding:18px 30px;gap:26px}.bubble-illustration{font-size:104px;text-align:center;filter:saturate(.9)}.support-copy h2{font-size:34px;line-height:1.1;margin:0 0 8px;color:#0b3c79;letter-spacing:-1px}.support-copy p{font-size:18px;line-height:1.4;color:#3e5877;margin:0}.support-btn{height:76px;border-radius:18px;background:linear-gradient(90deg,#ffae25,#ffa11a);display:flex;align-items:center;justify-content:center;gap:18px;font-size:22px;font-weight:800;color:#151a22;box-shadow:inset 0 1px 0 rgba(255,255,255,.45)}.paypal{font-size:38px;font-weight:900;color:#0b57b7;font-style:italic}.support-btn:hover{filter:brightness(.98)}
.downloads{padding:58px 0 74px;background:#f7fafc;border-top:1px solid #edf1f5}.downloads-head span{font-size:12px;font-weight:800;letter-spacing:.16em;color:#3b6aa5}.downloads-head h2{font-size:38px;margin:8px 0 6px}.downloads-head p{color:var(--muted);margin:0 0 28px}.level{background:#fff;border:1px solid #e7edf4;border-radius:18px;padding:24px;margin:0 0 18px}.level h3{margin:0 0 18px;font-size:24px;display:flex;align-items:center;gap:10px}.dot{width:11px;height:11px;border-radius:50%;display:inline-block}.d-red{background:#ef656d}.d-amber{background:#ffad39}.d-green{background:#4db56b}.d-blue{background:#378ce8}.download-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.download-grid>a,.download-grid>.soon{padding:16px;border:1px solid #e5ecf4;border-radius:14px;background:#fbfdff;display:flex;flex-direction:column;gap:7px;min-height:115px}.download-grid strong{font-size:16px}.download-grid small{color:#71839a}.download-grid em{margin-top:auto;color:#146bd7;font-style:normal;font-weight:700;font-size:13px}.soon{opacity:.62}.coming{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;background:#fff;border:1px solid #e7edf4;border-radius:14px;margin-top:12px}.coming span{color:var(--muted)}
.footer{border-top:1px solid #e4ebf2;background:#fff;padding:18px 0 22px}.footer-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:28px;color:#657893;font-size:13px}.footer-grid>div:first-child strong{display:block;color:#123a70;font-size:16px}.footer-grid>div:first-child span{display:block;margin-top:2px}.footer nav{display:flex;gap:0}.footer nav a{padding:0 14px;border-right:1px solid #cad5e1}.footer nav a:last-child{border-right:0}.footer-grid>div:last-child{text-align:right}
.page{min-height:calc(100vh - 92px);background:#f7fafc;padding:62px 0 80px}.page-card{max-width:900px;margin:auto;background:#fff;border:1px solid #e5ecf3;border-radius:22px;padding:46px;box-shadow:0 16px 40px rgba(31,66,102,.05)}.page-card h1{font-size:44px;margin:0 0 18px;color:#0c376f}.page-card h2{margin-top:30px}.page-card p,.page-card li{font-size:18px;line-height:1.7;color:#526a87}.page-card a{color:#1672dc;font-weight:700}
@media(max-width:1100px){.nav-wrap{grid-template-columns:330px 1fr}.search-box{display:none}.brand-name{font-size:25px}.main-nav{gap:22px}.hero-grid{grid-template-columns:54% 46%}.hero h1{font-size:58px}.hero h2{font-size:22px}.hub-grid{grid-template-columns:repeat(2,1fr)}.support-card{grid-template-columns:130px 1fr}.support-btn{grid-column:1/-1}.download-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{text-align:left}}
@media(max-width:760px){.shell{width:min(100% - 28px,1460px)}.topbar{height:auto}.nav-wrap{display:flex;flex-wrap:wrap;padding:10px 0}.brand{width:100%}.main-nav{width:100%;overflow:auto;justify-content:flex-start;gap:18px}.main-nav a{height:42px}.main-nav a.active:after{bottom:0}.hero-grid{height:auto;display:block}.hero-copy{padding:40px 0 18px}.hero h1{font-size:48px}.hero h2{font-size:21px}.hero p{font-size:17px}.hero-art{height:190px;border-radius:16px;background-position:center}.hub-grid{grid-template-columns:1fr}.hub-card{height:82px;padding:0 18px;grid-template-columns:54px 1fr 20px}.hub-card strong{font-size:21px}.hub-card small{font-size:14px}.support-card{grid-template-columns:1fr;text-align:center;padding:24px}.bubble-illustration{font-size:78px}.support-copy h2{font-size:28px}.support-copy p{font-size:16px}.support-btn{height:64px;font-size:18px}.download-grid{grid-template-columns:1fr}.footer-grid{display:block}.footer nav{margin:16px 0;flex-wrap:wrap;gap:10px}.footer nav a{border:0;padding:0 10px 0 0}.page-card{padding:28px}.page-card h1{font-size:36px}}

/* V13: HSK 2.0 + New HSK 3.0 */
.versioned-level{padding:0;overflow:hidden}.level-head{padding:22px 24px 14px;border-bottom:1px solid #edf1f5}.level-head h3{margin:0;font-size:25px;display:flex;align-items:center;gap:10px}.level-head p{margin:5px 0 0 21px;color:var(--muted);font-size:14px}.version-columns{display:grid;grid-template-columns:1fr 1.45fr}.version-panel{padding:20px 22px 24px}.version-panel+.version-panel{border-left:1px solid #e7edf4}.version-panel.legacy{background:#fcfdff}.version-panel.new{background:#fff}.version-label{display:inline-flex;border-radius:999px;padding:7px 12px;margin-bottom:14px;font-size:13px;font-weight:800}.legacy .version-label{color:#50627b;background:#eef2f6}.new .version-label{color:#1364c8;background:#eaf4ff}.version-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.new .version-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.version-grid>a,.version-grid>.soon{padding:14px;border:1px solid #e5ecf4;border-radius:13px;background:#fff;display:flex;flex-direction:column;gap:6px;min-height:102px;transition:.18s transform,.18s box-shadow}.version-grid>a:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(39,70,105,.08)}.version-grid strong{font-size:15px}.version-grid small{color:#71839a;font-size:13px}.version-grid em{margin-top:auto;color:#146bd7;font-style:normal;font-weight:700;font-size:12px}.version-grid>.soon{opacity:.62}.version-empty{min-height:102px;border:1px dashed #cfd9e5;border-radius:13px;background:#f9fbfd;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:18px;color:#71839a}.version-empty strong{color:#53667f;margin-bottom:5px}.version-empty span{font-size:13px}.d-purple{background:#9257d9}.d-teal{background:#26959c}@media(max-width:1000px){.version-columns{grid-template-columns:1fr}.version-panel+.version-panel{border-left:0;border-top:1px solid #e7edf4}.version-grid,.new .version-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.version-grid,.new .version-grid{grid-template-columns:1fr}.level-head{padding:18px}.version-panel{padding:16px}.level-head p{margin-left:21px}}