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#0D1430;--cam: #E7541F;--cam2: #C4451A;--cam3: #FF7A45;--cam-mo: #FFF2EC;--teal: #0C7C74;--teal2: #4FD1C3;--teal-mo:#E7F3F1;--paper: #F5F7F9;--card: #FFFFFF;--sunk: #EDF1F4;--line: #DFE5EA;--line2: #C2CCD5;--ink: #101A2B;--ink2: #33425A;--muted: #5E6E7C;--muted2: #8695A2;--warn: #9A6B04;--k1: .25rem;--k2: .5rem;--k3: .75rem;--k4: 1rem;--k5: 1.5rem;--k6: 2rem;--k7: 3rem;--k8: 4.5rem;--r-nho: 8px;--r: 12px;--r-lon: 18px;--r-tron: 999px;--bong1: 0 1px 2px rgba(16, 26, 43, .05), 0 1px 3px rgba(16, 26, 43, .04);--bong2: 0 2px 4px -1px rgba(16, 26, 43, .06), 0 6px 16px -4px rgba(16, 26, 43, .09);--bong3: 0 8px 18px -8px rgba(16, 26, 43, .12), 0 18px 36px -12px rgba(16, 26, 43, .14);--bong4: 0 28px 56px -20px rgba(16, 26, 43, .3);--bong-cam: 0 10px 24px -12px rgba(231, 84, 31, .65);--em: cubic-bezier(.2, .8, .2, 1);--nhanh: .14s var(--em);--vua: .24s var(--em);--cham: .52s var(--em);--sans: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono: "JetBrains Mono", 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.nut-phu:hover{background:#fff3;border-color:#fff;color:#fff}.the{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.15rem;box-shadow:var(--bong1)}a.the{text-decoration:none;transition:transform var(--vua),box-shadow var(--vua),border-color var(--vua)}a.the:hover{transform:translateY(-3px);box-shadow:var(--bong3);border-color:var(--line2)}a.the:active{transform:translateY(-1px)}.nut{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:linear-gradient(180deg,#F0602B,var(--cam) 55%,var(--cam2));color:#fff;border:0;padding:.72rem 1.25rem;border-radius:var(--r-nho);font:600 .95rem/1.15 var(--sans);letter-spacing:-.005em;cursor:pointer;text-decoration:none;box-shadow:var(--bong-cam);transition:transform var(--nhanh),box-shadow var(--vua),filter var(--nhanh)}.nut:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 30px -12px 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var(--cam);outline-offset:2px}#noi-dung:focus{outline:none}.dau{position:sticky;top:0;z-index:30;background:#ffffffd1;-webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:border-color var(--vua),box-shadow var(--vua),background var(--vua)}.dau[data-cuon]{background:#ffffffed;border-bottom-color:var(--line);box-shadow:var(--bong2)}@supports not (backdrop-filter: blur(1px)){.dau{background:var(--card)}}.dau-trong{display:flex;align-items:center;gap:1.2rem;padding:.8rem 0;transition:padding var(--vua)}.dau[data-cuon] .dau-trong{padding:.55rem 0}.dau-logo{display:flex;align-items:center;gap:.6rem;text-decoration:none}.dau-logo img{height:38px;width:auto;border-radius:6px}.dau-ten{color:var(--navy);font-size:1.05rem}.dau-ten span{color:var(--cam)}.dau nav.dau-nav{display:flex;gap:.3rem;margin-left:auto;flex-wrap:wrap}.dau nav.dau-nav a{position:relative;text-decoration:none;font-weight:500;font-size:.95rem;color:var(--ink2);padding:.4rem .6rem;border-radius:var(--r-nho);transition:color var(--nhanh),background var(--nhanh)}.dau nav.dau-nav a:hover{color:var(--cam);background:var(--sunk)}@media(max-width:1200px)and (min-width:761px){.dau nav.dau-nav{gap:.1rem}.dau nav.dau-nav a{font-size:.88rem;padding:.35rem .45rem}.dau-trong{gap:.8rem}}.dau nav.dau-nav a:after{content:"";position:absolute;left:.6rem;right:.6rem;bottom:.1rem;height:2px;background:var(--cam);border-radius:2px;transform:scaleX(0);transition:transform var(--vua)}.dau nav.dau-nav a[aria-current=page]{color:var(--cam);font-weight:600}.dau nav.dau-nav a[aria-current=page]:after{transform:scaleX(1)}.dau-lang{flex:none;text-decoration:none;font:600 .78rem/1 var(--mono);color:var(--navy);border:1.5px solid var(--line2);border-radius:var(--r-nho);padding:.4rem .55rem;transition:border-color var(--nhanh),color var(--nhanh),background var(--nhanh)}.dau-lang:hover{border-color:var(--cam);color:var(--cam);background:var(--cam-mo)}.dau-gio{flex:none;display:inline-flex;align-items:center;gap:.35rem;text-decoration:none;color:var(--navy);border:1.5px solid var(--line2);border-radius:var(--r-nho);padding:.34rem .55rem;transition:border-color var(--nhanh),color var(--nhanh),background var(--nhanh)}.dau-gio:hover{border-color:var(--cam);color:var(--cam);background:var(--cam-mo)}.dau-gio b{font-size:.78rem;line-height:1}.dau-gio[hidden]{display:none}.mnav{display:none;position:relative;margin-left:auto}.mnav summary{list-style:none;cursor:pointer;display:flex;flex-direction:column;gap:4px;padding:.55rem .45rem}.mnav summary::-webkit-details-marker{display:none}.mnav summary span{width:20px;height:2px;background:var(--navy);border-radius:2px;transition:transform var(--vua),background var(--nhanh),opacity var(--nhanh)}.mnav[open] summary span{background:var(--cam)}.mnav[open] summary 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