.navbar{z-index:1000;-webkit-backdrop-filter:blur(18px)saturate(1.15);backdrop-filter:blur(18px)saturate(1.15);background:linear-gradient(#ffffffc7,#daf2ff94);border-bottom:1px solid #508bbe38;position:sticky;top:0;box-shadow:0 12px 34px #346e9a29}.navbar-inner{height:var(--nav-height);justify-content:space-between;align-items:center;gap:20px;display:flex}.brandFrame{flex:0 auto;align-items:center;gap:14px;min-width:0;display:inline-flex}.brandIco{object-fit:contain;filter:drop-shadow(0 6px 8px #1f4e7538);width:52px;height:52px;display:block}.brand{color:#14395d;letter-spacing:-.03em;white-space:nowrap;text-align:left;text-shadow:0 1px #ffffffe6;font-size:1.9rem;font-weight:900;text-decoration:none}.nav-links{scrollbar-width:none;flex:auto;justify-content:center;align-items:center;gap:8px;min-width:0;display:flex;overflow-x:auto}.nav-links::-webkit-scrollbar{display:none}.nav-links a{color:#2d5678;cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:999px;padding:13px;font-size:1rem;font-weight:800;text-decoration:none;transition:all .2s}.nav-links a:hover,.nav-links a.active{color:#9b1736;background:#ffffffc7;border-color:#ffc35a9e;box-shadow:0 8px 24px #5786ab2e}.nav-links .policy-link{color:#fff;background:linear-gradient(#7c4dff,#07050d);border-color:#ffd36d;box-shadow:0 0 0 2px #793f1c73,0 8px 18px #71172f38}.nav-links .policy-link:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px)}.menu-toggle{color:#14395d;cursor:pointer;background:#ffffffa8;border:1px solid #508bbe47;border-radius:16px;width:48px;height:48px;font-size:1.2rem;font-weight:900;display:none}.menu-toggle:before{content:"";background:currentColor;border-radius:999px;width:18px;height:2px;box-shadow:0 -6px,0 6px}.navbar-controls{flex:0 auto;justify-content:flex-end;align-items:center;gap:12px;min-width:0;display:flex}.account-button{color:#14395d;max-width:190px;min-height:42px;font:inherit;cursor:pointer;background:#ffffffb8;border:1px solid #508bbe47;border-radius:999px;flex:0 auto;justify-content:center;align-items:center;gap:9px;padding:7px 13px;font-size:.94rem;font-weight:900;transition:all .2s;display:inline-flex}.account-button:hover,.account-button.active{color:#9b1736;background:#ffffffeb;border-color:#ffc35ab8;transform:translateY(-1px);box-shadow:0 8px 24px #5786ab2e}.account-head{object-fit:cover;width:28px;height:28px;image-rendering:pixelated;background:#14395d14;border:1px solid #508bbe3d;border-radius:7px;display:block}.account-button span{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.language-switcher{color:#2d5678;flex:0 auto;align-items:center;gap:8px;min-width:0;max-width:232px;font-size:.9rem;font-weight:800;display:inline-flex}.language-switcher span{flex:none}.language-switcher select{width:180px;min-height:38px;color:var(--text);background:#ffffffb8;border:1px solid #508bbe47;border-radius:999px;outline:none;flex:0 180px;min-width:0;max-width:180px;padding:0 12px;font-weight:800}.language-switcher option{color:#000}.footer{color:#2d5678;background:linear-gradient(#ffffff5c,#e0f6ffb8);border-top:1px solid #508bbe33;padding:34px 0 46px;position:relative;overflow:hidden}.footer:before{content:"";pointer-events:none;background:radial-gradient(at 12% 62%,#ffffffdb 0 18%,#0000 42%),radial-gradient(at 40% 44%,#ffffffc2 0 18%,#0000 43%),radial-gradient(at 74% 58%,#ffffffd1 0 20%,#0000 46%);height:170px;position:absolute;inset:-70px -5% auto}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;display:flex;position:relative}.footer-brand{align-items:center;gap:14px;display:flex}.footer-brand img{object-fit:contain;filter:drop-shadow(0 6px 8px #1f4e7533);width:50px;height:50px}.footer-brand strong,.footer-brand span,.footer-copy span,.footer-copy a{display:block}.footer-brand strong{color:#14395d;font-size:1.05rem}.footer-brand span,.footer-copy span{color:var(--muted);margin-top:4px}.footer-copy{text-align:right}.footer-copy a{color:#9b1736;margin-top:8px;font-weight:900;text-decoration:none}.footer-copy a:hover{text-decoration:underline}.copied{color:#fff;box-shadow:var(--shadow);opacity:0;pointer-events:none;z-index:2000;background:#20a986f2;border-radius:14px;padding:12px 16px;font-weight:700;transition:all .2s;position:fixed;bottom:24px;left:50%;transform:translate(-50%)translateY(16px)}.copied.show{opacity:1;transform:translate(-50%)translateY(0)}@media (width<=1240px){.navbar-inner{gap:14px}.brandFrame{gap:10px}.brandIco{width:48px;height:48px}.brand{font-size:1.6rem}.nav-links{gap:4px}.nav-links a{white-space:nowrap;padding:11px 10px;font-size:.95rem}.navbar-controls{gap:10px}.language-switcher span{display:none}.account-button{max-width:150px;padding-inline:11px}}@media (width<=1100px){:root{--nav-height:72px}.navbar-inner{gap:12px;position:relative}.brandFrame{min-width:0}.brand{text-overflow:ellipsis;overflow:hidden}.menu-toggle{flex:0 0 48px;place-items:center;font-size:0;display:inline-grid}.nav-links{box-shadow:var(--shadow);background:#ebf9fff5;border:1px solid #508bbe38;border-radius:24px;flex-direction:column;align-items:stretch;gap:8px;padding:12px;display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;overflow-x:visible}.nav-links.open{display:flex}.nav-links a{text-align:center;width:100%}}@media (width<=760px){.navbar-inner,.navbar-controls{gap:8px}.language-switcher select{width:112px;min-width:0;max-width:112px;padding:0 9px}.account-button.has-profile{width:42px;max-width:42px;min-height:42px;padding:0}.account-button.has-profile span{display:none}.account-button.guest{max-width:78px;min-height:42px;padding:0 10px}}@media (width<=520px){.navbar-inner{justify-content:flex-start}.navbar-controls{position:absolute;top:50%;right:18px;transform:translateY(-50%)}.brand{font-size:1.5rem;display:none}.brandIco{width:46px;height:46px}.language-switcher{display:none}.account-button.has-profile{width:44px;max-width:44px;min-height:40px;padding:0}.account-button.guest{width:auto;max-width:74px;min-height:40px;padding:0 10px;font-size:.86rem}.account-head{width:26px;height:26px}.account-button.has-profile span{display:none}.menu-toggle{border-radius:14px;flex-basis:44px;width:44px;height:44px}.footer-inner,.footer-copy{text-align:left}}@media (width<=380px){.navbar-inner,.navbar-controls{gap:6px}.brandIco{width:42px;height:42px}.account-button.guest{max-width:66px;padding:0 8px;font-size:.82rem}.account-button.has-profile{width:40px;max-width:40px}.menu-toggle{flex-basis:42px;width:42px;height:42px}}:root{--bg:#d9f1ff;--bg-soft:#ffffffb8;--panel:#ffffffc2;--panel-strong:#ffffffe6;--panel-border:#508bbe3d;--text:#17314f;--muted:#486884;--primary:#b82042;--primary-soft:#b8204224;--gold:#ffc35a;--sky:#5db8ff;--green:#20a986;--shadow:0 24px 70px #346e9a3d;--radius-xl:30px;--radius-lg:22px;--radius-md:14px;--nav-height:78px;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--text);background:linear-gradient(#fff3,#fff8de57),url(/aeronautics/BackGround.png) top/cover no-repeat fixed;min-height:100vh;margin:0;font-family:Arial,Helvetica,sans-serif;overflow-x:hidden}body:after{content:"";z-index:-1;pointer-events:none;background:linear-gradient(#80cbff14,#ffffff3d 56%,#fff0be2e);position:fixed;inset:0}.container{width:min(calc(100% - 32px), var(--container));margin:0 auto}.page-view{min-height:calc(100vh - var(--nav-height));animation:.8s ease-out forwards cloudSlideIn;display:none}.page-view.active{display:block}.page-loading{min-height:calc(100vh - var(--nav-height))}.section{padding:92px 0}.section-header{-webkit-backdrop-filter:blur(18px)saturate(1.08);backdrop-filter:blur(18px)saturate(1.08);background:linear-gradient(#fffffff0,#e8f8ffdb),#ffffffe0;border:1px solid #508bbe57;border-radius:24px;width:min(100%,840px);margin-bottom:30px;padding:22px 26px 24px;box-shadow:0 18px 46px #1f4e7538}.eyebrow{color:#9b1736;letter-spacing:0;text-transform:uppercase;text-shadow:0 1px #ffffffe6;align-items:center;gap:8px;margin-bottom:12px;font-size:.9rem;font-weight:900;display:inline-flex}.section-title{letter-spacing:0;color:#102d4a;margin:0 0 12px;font-size:clamp(2rem,4vw,3.1rem)}.section-text{color:#244b6e;max-width:760px;margin:0;font-size:1.04rem;font-weight:700;line-height:1.72}.content-card{border:1px solid var(--panel-border);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:linear-gradient(#ffffffe6,#eefaffb8);border-radius:28px;padding:24px;position:relative;overflow:hidden}.content-card:before{content:"";pointer-events:none;background:radial-gradient(#ffffffdb,#0000 70%);width:210px;height:120px;position:absolute;inset:-50% auto auto -20%}.content-card h3{color:#163b5f;margin:0 0 12px;font-size:1.22rem;position:relative}.content-card p,.content-card li{color:var(--muted);line-height:1.75;position:relative}.content-card ul{margin:0;padding-left:18px}.btn{cursor:pointer;border:1px solid #0000;border-radius:16px;justify-content:center;align-items:center;gap:10px;min-height:50px;padding:0 18px;font-size:1rem;font-weight:800;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{color:#fff;background:linear-gradient(#b82042,#71172f);box-shadow:0 12px 26px #71172f47}.btn-primary:hover{transform:translateY(-1px)}.btn-secondary{color:var(--text);background:#fff9;border-color:#508bbe47}.btn-secondary:hover{background:#ffffffdb}button.btn{font-family:inherit}.form-field{flex-direction:column;gap:8px;display:flex}.form-field span{color:#2d5678;font-weight:800}.form-field input,.form-field select{width:100%;min-height:50px;color:var(--text);font:inherit;background:#ffffffdb;border:1px solid #508bbe47;border-radius:14px;outline:none;padding:0 14px;transition:all .2s}.form-field input::placeholder{color:#4868848f}.form-field select{cursor:pointer}.form-field select option{color:#14395d}.form-field input:focus,.form-field select:focus{background:#fff;border-color:#b82042ad;box-shadow:0 0 0 4px #ffc35a3d}@keyframes cloudSlideIn{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@media (width<=520px){.container{width:min(calc(100% - 20px), var(--container))}.section{padding:72px 0}.section-header{border-radius:20px;padding:19px 18px 21px}.content-card{border-radius:22px;padding:20px}}