:root{color-scheme:light;--led: #a06bff;--tren-led: #0e1220;--nen: #f6f7fa;--mat-phang: #e9ecf3;--muc: #10141f;--muc-nhe: #505a6e;--ke: #d3d9e4;--tam-dam: #10141f;--tren-dam: #f3f5fa;--chu: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--rong: 1120px;--rong-doc: 720px}[data-theme=dark]{color-scheme:dark;--nen: #0e1320;--mat-phang: #182032;--muc: #eef1f7;--muc-nhe: #a3adc2;--ke: #2a3550;--tam-dam: #182032;--tren-dam: #eef1f7}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;font-family:var(--chu);font-size:1.0625rem;line-height:1.7;color:var(--muc);background:var(--nen);-webkit-font-smoothing:antialiased;transition:background-color .3s ease,color .3s ease}h1,h2,h3{font-family:var(--chu);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:0;text-wrap:balance}p{margin:0}a{color:inherit}img,svg{display:block;max-width:100%}button,input{font:inherit;color:inherit}button{cursor:pointer;border:0;background:none}ul,ol{margin:0;padding:0;list-style:none}:focus-visible{outline:3px solid var(--led);outline-offset:3px;border-radius:6px}::selection{background:var(--led);color:var(--tren-led)}.khung{width:min(100% - 40px,var(--rong));margin-inline:auto}.khung-doc{width:min(100% - 40px,var(--rong-doc));margin-inline:auto}.an-chu{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.bo-qua{position:absolute;left:16px;top:-80px;z-index:50;background:var(--muc);color:var(--nen);padding:8px 16px;border-radius:10px}.bo-qua:focus{top:12px}.ra-ngoai:after{content:"↗";margin-left:.3em;font-size:.85em}.dau-trang{position:sticky;top:0;z-index:20;background:var(--nen);border-bottom:2px solid var(--ke);transition:background-color .3s ease}.dau-trang .khung{display:flex;align-items:center;gap:24px;min-height:72px}.ten-blog{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}.ten-blog .dau{width:44px;height:44px;border-radius:14px;background:var(--muc);position:relative;flex:none}.ten-blog .dau:after{content:"";position:absolute;left:9px;right:9px;bottom:11px;height:5px;border-radius:99px;background:var(--led)}.ten-blog b{font-size:1.3rem;font-weight:800;letter-spacing:-.02em;line-height:1.1;display:block}.ten-blog small{font-size:.8rem;color:var(--muc-nhe);display:block;line-height:1.3}.muc-luc{display:flex;gap:4px}.muc-luc a{padding:8px 14px;border-radius:999px;text-decoration:none;font-size:.95rem;font-weight:500;color:var(--muc-nhe);white-space:nowrap}.muc-luc a:hover{background:var(--mat-phang);color:var(--muc)}.muc-luc a[aria-current=page]{background:var(--muc);color:var(--nen)}.nut-giao-dien{flex:none;display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 14px 0 12px;border-radius:999px;border:2px solid var(--muc);font-size:.9rem;font-weight:600}.nut-giao-dien:hover{background:var(--muc);color:var(--nen)}.nut-giao-dien svg{width:20px;height:20px}.nut-giao-dien .trang{display:none}[data-theme=dark] .nut-giao-dien .trang{display:block}[data-theme=dark] .nut-giao-dien .troi{display:none}.nut{display:inline-flex;align-items:center;min-height:48px;padding:0 22px;border-radius:999px;font-weight:600;text-decoration:none;border:2px solid var(--muc)}.nut-dac{background:var(--muc);color:var(--nen)}.nut-dac:hover{background:var(--led);border-color:var(--led);color:var(--tren-led)}.nut-rong:hover{background:var(--mat-phang)}.mo-dau{padding:56px 0 40px}.mo-dau .khung{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}.mo-dau h1{font-size:clamp(2.3rem,5.2vw,4rem);line-height:1.08;letter-spacing:-.035em}.mo-dau .dan{margin-top:22px;font-size:1.15rem;color:var(--muc-nhe);max-width:34em}.mo-dau .hanh-dong{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}.canh{margin:0}.anh-den{position:relative;isolation:isolate;overflow:hidden;aspect-ratio:7 / 5;border-radius:32px;background:#0c0c0e}.anh-den img{width:100%;height:100%;object-fit:cover;object-position:62% 50%}.anh-den .nhuom{position:absolute;inset:0;background:var(--den, transparent);mix-blend-mode:hue;opacity:0;transition:opacity .7s ease,background-color .7s ease}.anh-den[data-den] .nhuom{opacity:1}.anh-den .vet-sang{position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,transparent,var(--den, #e9b9a2) 22%,var(--den, #e9b9a2) 78%,transparent);box-shadow:0 0 18px 1px var(--den, #e9b9a2);transition:background .7s ease,box-shadow .7s ease}.duoi-canh{margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px}.mau-den{border:0;margin:0;padding:0;display:flex;align-items:center;gap:8px}.mau-den legend{float:left;padding:0;margin-right:6px;font-size:.92rem;font-weight:600}.mau-den label{position:relative;width:34px;height:34px;border-radius:50%;background:var(--mau);cursor:pointer}.mau-den input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}.mau-den label:has(input:checked){box-shadow:0 0 0 3px var(--nen),0 0 0 6px var(--muc)}.mau-den label:has(input:focus-visible){outline:3px solid var(--muc);outline-offset:7px}.loi-gio{font-size:.92rem;color:var(--muc-nhe);display:flex;gap:10px;align-items:baseline;flex-basis:100%}.loi-gio b{font-size:1.15rem;font-weight:800;color:var(--muc);font-variant-numeric:tabular-nums;flex:none}.noi-bat{padding:16px 0 64px}.noi-bat a.tam{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:end;background:var(--tam-dam);color:var(--tren-dam);text-decoration:none;border-radius:32px;padding:44px 48px;border-bottom:10px solid var(--led);transition:background-color .3s ease,border-color .25s ease}.nhan{display:inline-block;background:var(--led);color:var(--tren-led);font-size:.85rem;font-weight:600;padding:3px 12px;border-radius:999px}.noi-bat h2{font-size:clamp(1.7rem,3.4vw,2.7rem);margin-top:16px;max-width:18em}.noi-bat p{margin-top:14px;max-width:38em;opacity:.88}.noi-bat .ghi{margin-top:18px;font-size:.92rem;opacity:.75}.noi-bat .doc{display:inline-flex;align-items:center;min-height:48px;padding:0 24px;border-radius:999px;background:var(--tren-dam);color:#10141f;font-weight:600;white-space:nowrap}.noi-bat a.tam:hover .doc{background:var(--led);color:var(--tren-led)}.bai-moi{padding-bottom:72px}.bai-moi .khung{display:grid;grid-template-columns:minmax(0,1fr) 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svg{position:absolute;left:15px;top:14px;width:20px;height:20px;color:var(--muc-nhe)}.ds-bai{margin-top:12px}.ds-bai>li{border-bottom:2px solid var(--ke);padding:22px 0;display:grid;grid-template-columns:92px 1fr;gap:22px;align-items:start}.ds-bai>li[hidden]{display:none}.o-hinh{display:block;width:92px;height:92px;border-radius:22px;overflow:hidden;background:var(--mat-phang);border-bottom:7px solid var(--led);transition:background-color .3s ease,border-color .25s ease}.o-hinh img{width:100%;height:100%;object-fit:cover;display:block}.ds-bai h3{font-size:1.28rem;font-weight:700;line-height:1.3}.ds-bai h3 a{text-decoration:none}.ds-bai h3 a:hover{text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:5px;text-decoration-color:var(--led)}.ds-bai .tom{margin-top:6px;color:var(--muc-nhe);font-size:.98rem;line-height:1.6;max-width:44em}.ghi-bai{margin-top:8px;font-size:.86rem;color:var(--muc-nhe);display:flex;flex-wrap:wrap;gap:4px 16px}.ghi-bai 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img{width:56px;height:56px;border-radius:14px;object-fit:cover;background:var(--mat-phang)}.sp-nhac a:hover span{text-decoration:underline}.o-catalog{border:2px solid var(--ke);border-radius:26px;padding:26px}.o-catalog p{margin-top:8px;font-size:.96rem;line-height:1.6;color:var(--muc-nhe)}.o-catalog a{margin-top:16px;display:inline-flex;align-items:center;min-height:44px;padding:0 20px;border-radius:999px;background:var(--muc);color:var(--nen);font-weight:600;text-decoration:none}.o-catalog a:hover{background:var(--led);color:var(--tren-led)}.hoi-xe{background:var(--led);color:var(--tren-led);border-radius:26px;padding:26px;transition:background-color .25s ease}.hoi-xe p{margin-top:8px;font-size:.96rem;line-height:1.6}.hoi-xe a{margin-top:16px;display:inline-flex;align-items:center;min-height:44px;padding:0 20px;border-radius:999px;background:#10141f;color:#f6f7fa;font-weight:600;text-decoration:none}.hoi-xe a:hover{background:#2b3347}.theo-hang{background:var(--mat-phang);padding:56px 0;transition:background-color .3s ease}.theo-hang .dan{margin-top:8px;color:var(--muc-nhe);max-width:40em}.luoi-hang{margin-top:24px;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.luoi-hang a{display:block;background:var(--nen);border-radius:18px;padding:16px 18px;text-decoration:none;border:2px solid transparent;transition:background-color .3s ease}.luoi-hang a:hover{border-color:var(--muc)}.luoi-hang b{display:block;font-size:1.08rem;font-weight:700;line-height:1.3}.luoi-hang small{color:var(--muc-nhe);font-size:.84rem}.bai{padding:40px 0 64px}.ve-lai{display:inline-flex;align-items:center;gap:6px;font-size:.95rem;font-weight:600;text-decoration:none;color:var(--muc-nhe)}.ve-lai:hover{color:var(--muc)}.bai header{margin-top:22px}.bai h1{font-size:clamp(2rem,4.6vw,3rem);line-height:1.14;letter-spacing:-.03em;margin-top:16px}.bai 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blockquote{margin-inline:0;padding:16px 22px;border-left:6px solid var(--led);background:var(--mat-phang);border-radius:0 16px 16px 0}.than-bai code{background:var(--mat-phang);padding:2px 6px;border-radius:6px;font-size:.9em}.than-bai pre{background:var(--mat-phang);padding:16px;border-radius:14px;overflow-x:auto}.than-bai pre code{padding:0;background:none}.than-bai table{width:100%;border-collapse:collapse;font-size:1rem}.than-bai th,.than-bai td{text-align:left;padding:10px 12px;border-bottom:2px solid var(--ke)}.than-bai hr{border:0;border-top:2px solid var(--ke)}.khoi-sp{margin-top:48px;background:var(--mat-phang);border-radius:28px;padding:28px;border-bottom:8px solid var(--led);transition:background-color .3s ease,border-color .25s ease}.khoi-sp h2{font-size:1.4rem}.khoi-sp>p{margin-top:6px;color:var(--muc-nhe);font-size:.98rem}.ds-sp{margin-top:18px;display:grid;gap:12px}.ds-sp a{display:grid;grid-template-columns:132px 1fr auto;gap:18px;align-items:center;background:var(--nen);border-radius:20px;padding:12px;text-decoration:none;border:2px solid transparent;transition:background-color .3s ease}.ds-sp a:hover{border-color:var(--muc)}.ds-sp img{width:132px;height:96px;object-fit:cover;border-radius:12px;background:var(--mat-phang)}.ds-sp small{color:var(--muc-nhe);font-size:.84rem;display:block}.ds-sp b{font-size:1.1rem;font-weight:700;line-height:1.3;display:block}.ds-sp .xem{display:inline-flex;align-items:center;min-height:42px;padding:0 18px;border-radius:999px;background:var(--muc);color:var(--nen);font-weight:600;font-size:.92rem;white-space:nowrap}.ds-sp a:hover .xem{background:var(--led);color:var(--tren-led)}.khoi-sp .ca-hai{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px}.bai-ke{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:16px}.bai-ke a{display:block;padding:18px 20px;border:2px solid var(--ke);border-radius:20px;text-decoration:none}.bai-ke a:hover{border-color:var(--muc)}.bai-ke small{color:var(--muc-nhe);font-size:.84rem;display:block}.bai-ke b{font-weight:700;line-height:1.35;display:block;margin-top:2px}.bai-ke .sau{text-align:right;grid-column:2}.khong-thay{padding:80px 0}.khong-thay h1{font-size:clamp(2rem,5vw,3rem)}.khong-thay p{margin-top:14px;color:var(--muc-nhe)}.khong-thay .nut{margin-top:26px}.chan{padding:36px 0 44px;font-size:.94rem;color:var(--muc-nhe);border-top:2px solid var(--ke)}.chan .khung{display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:space-between}.chan nav{display:flex;flex-wrap:wrap;gap:6px 22px}.chan a{color:var(--muc)}.chan .gio{flex-basis:100%}@media(max-width:960px){.mo-dau .khung{grid-template-columns:1fr;gap:32px}.bai-moi .khung{grid-template-columns:1fr}.ben{position:static;grid-template-columns:1fr 1fr}.noi-bat a.tam{grid-template-columns:1fr;padding:34px 28px}.noi-bat .doc{justify-self:start}}@media(max-width:760px){.dau-trang .khung{flex-wrap:wrap;gap:0 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