:root{--navy: #13233F;--navy-700: #1c3357;--navy-50: #eef1f6;--orange: #F5931E;--orange-600: #e07f0a;--ink: #1a2230;--muted: #5a6b82;--line: #e6e9f0;--bg: #ffffff;--bg-soft: #f6f8fb;--radius: 14px;--shadow: 0 6px 24px rgba(19, 35, 63, .08);--shadow-lg: 0 18px 50px rgba(19, 35, 63, .14);--maxw: 1160px;--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}.app{display:flex;flex-direction:column;min-height:100vh}.app-main{flex:1;padding-bottom:40px}.site-header{position:sticky;top:0;z-index:50;background:#ffffffeb;-webkit-backdrop-filter:saturate(1.4) blur(8px);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;gap:24px;height:72px}.brand{flex:none;display:inline-flex}.brand-logo{height:40px;width:auto;display:block}.main-nav{display:flex;gap:22px;margin-left:30px;flex:1}.main-nav a{font-weight:600;color:var(--navy);font-size:15px;padding:6px 0;border-bottom:2px solid transparent;transition:.15s;white-space:nowrap}.main-nav a:hover{border-color:var(--orange)}.header-actions{display:flex;align-items:center;gap:14px;flex:none}.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}.lang-switch button{border:0;background:transparent;padding:7px 13px;font-weight:700;font-size:13px;color:var(--muted);cursor:pointer;transition:.15s}.lang-switch button.active{background:var(--navy);color:#fff}.btn-login{background:var(--navy);color:#fff;font-weight:800;font-size:14px;padding:9px 20px;border-radius:999px;white-space:nowrap;transition:.15s;border:0;cursor:pointer}.btn-login:hover{background:var(--orange)}.btn-primary{display:inline-block;background:var(--orange);color:#fff;border:0;padding:13px 22px;border-radius:10px;font-weight:800;font-size:15px;cursor:pointer;transition:.15s;font-family:inherit;text-align:center}.btn-primary:hover{background:var(--orange-600)}.btn-primary:disabled{opacity:.6;cursor:default}.btn-block{display:block;width:100%}.btn-ghost{display:inline-block;background:transparent;color:var(--navy);border:1px solid var(--line);padding:12px 20px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;font-family:inherit}.btn-ghost:hover{background:var(--navy-50)}.link-btn{display:inline-block;margin-top:14px;background:none;border:0;color:var(--muted);font-size:14px;cursor:pointer;text-decoration:underline;font-family:inherit}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.auth-wrap{display:grid;place-items:center;padding:56px 0}.auth-card{width:100%;max-width:420px;padding:32px 30px;box-shadow:var(--shadow)}.auth-title{margin:0 0 6px;font-size:26px;font-weight:800;color:var(--navy)}.auth-sub{margin:0 0 22px;color:var(--muted);font-size:15px}.auth-form{display:flex;flex-direction:column;gap:15px}.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);font-weight:700}.field input{border:1px solid var(--line);border-radius:10px;padding:13px 14px;font-size:15px;color:var(--ink);outline:none;font-family:inherit}.field input:focus{outline:2px solid var(--orange);border-color:transparent}.form-err{color:#b91c1c;font-size:14px;margin:0}.form-ok{color:#1f8a4c;font-size:15px;font-weight:600;margin:0;line-height:1.5}.auth-hint{text-align:center;color:var(--muted);font-size:13.5px;margin:20px 0 0}.account{padding:40px 0 10px}.account-head h1{margin:0 0 2px;font-size:30px;font-weight:800;color:var(--navy)}.muted{color:var(--muted)}.account-section{margin-top:36px}.account-section h2{font-size:22px;font-weight:800;color:var(--navy);margin:0 0 20px;position:relative;padding-left:16px}.account-section h2:before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:5px;border-radius:3px;background:var(--orange)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}.product{overflow:hidden;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}.product:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.product-cover{aspect-ratio:16/9;background:linear-gradient(135deg,var(--navy),var(--navy-700));background-size:cover;background-position:center;position:relative}.product-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}.product-body h3{margin:0;font-size:19px;font-weight:800;color:var(--navy)}.product-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}.price{font-weight:800;color:var(--navy);font-size:19px}.tag{position:absolute;top:12px;left:12px;background:#13233feb;color:#fff;font-size:12px;font-weight:800;padding:5px 11px;border-radius:999px;text-transform:uppercase;letter-spacing:.5px}.tag.owned{background:#1f8a4c}.banner{padding:14px 18px;border-radius:12px;font-size:14.5px;margin:20px 0 0;font-weight:600}.banner.ok{background:#eaf7ef;color:#1f8a4c;border:1px solid #bce3c9}.banner.warn{background:#fff6ea;color:#9a5a00;border:1px solid #f6d9ac}.center-msg{text-align:center;padding:80px 20px;color:var(--muted)}.center-msg.warn,.center-msg .warn{color:#9a5a00;font-weight:600}.course-area{padding:40px 0 10px}.course-cta{padding:28px;margin-top:18px;max-width:560px;box-shadow:var(--shadow)}.course-cta p{margin-top:0;color:var(--muted)}.thanks{text-align:center}.thanks-badge{width:60px;height:60px;border-radius:50%;background:#1f8a4c;color:#fff;font-size:32px;display:grid;place-items:center;margin:0 auto 16px}.thanks-body{color:var(--ink);font-size:16px;margin:0 0 8px;line-height:1.5}.thanks-hint{color:var(--muted);font-size:14px;margin:0 0 22px}.site-footer{margin-top:60px;background:var(--navy);color:#cdd8ea}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:40px 20px;flex-wrap:wrap}.footer-logo{height:40px;width:auto;background:#fff;padding:8px 14px;border-radius:12px}.footer-brand p{margin:12px 0 0;color:#93a4c2}.footer-nav{display:flex;gap:20px;flex-wrap:wrap}.footer-nav a{font-weight:600}.footer-nav a:hover{color:#fff}.footer-disclaimer{border-top:1px solid rgba(255,255,255,.1)}.footer-disclaimer .container{padding:18px 20px;color:#8ea1c0;font-size:12.5px;line-height:1.55}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);font-size:13.5px;color:#7f92b3}.footer-bottom .container{padding:18px 20px}@media (max-width: 760px){.main-nav{display:none}.header-inner{gap:12px;height:62px}.brand-logo{height:34px}.account-head h1{font-size:24px}.footer-inner{flex-direction:column;align-items:flex-start}}