@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap";
*,:before,:after,::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:#3b82f680;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border:0 solid #e5e7eb}:before,:after{--tw-content:""}html,:host{-webkit-text-size-adjust:100%;tab-size:4;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent;font-family:ui-sans-serif,system-ui,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;line-height:1.5}body{line-height:inherit;margin:0}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-feature-settings:normal;font-variation-settings:normal;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-feature-settings:inherit;font-variation-settings:inherit;font-family:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:#0000;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{margin:0;padding:0;list-style:none}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder{opacity:1;color:#9ca3af}textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}:root{--primary:#0f4c81;--primary-dark:#0a3560;--primary-light:#1565a8;--secondary:#0369a1;--accent:#0284c7;--accent-light:#0ea5e9;--bg-main:#f8fafc;--bg-white:#fff;--bg-card:#fff;--border:#e2e8f0;--border-light:#f1f5f9;--text-main:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--shadow-sm:0 1px 3px #0f4c810f, 0 1px 2px #0000000a;--shadow-md:0 4px 16px #0f4c811a;--shadow-lg:0 10px 40px #0f4c8124;--radius-sm:8px;--radius-md:12px;--radius-lg:16px}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;overflow-x:hidden;background-color:var(--bg-main)!important;color:var(--text-main)!important}h1,h2,h3,h4,h5,h6{color:var(--text-main);margin:0;font-family:Inter,sans-serif;font-weight:700}.hero-title-main{color:#2d3e53!important}.hero-title-sub{color:#0f4c81!important}.qn-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform .22s,box-shadow .22s}.qn-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.qn-card-flat{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md)}.qn-btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-sm);cursor:pointer;letter-spacing:.3px;border:none;font-family:Inter,sans-serif;font-weight:700;transition:background .18s,transform .12s,box-shadow .18s}.qn-btn-primary:hover{background:var(--primary-light);transform:translateY(-1px);box-shadow:0 6px 18px #0f4c8147}.qn-btn-primary:active{transform:translateY(0)}.qn-btn-outline{color:var(--primary);border:2px solid var(--primary);border-radius:var(--radius-sm);cursor:pointer;background:0 0;font-family:Inter,sans-serif;font-weight:700;transition:all .18s}.qn-btn-outline:hover{background:var(--primary);color:#fff}.qn-badge{letter-spacing:.4px;border-radius:20px;align-items:center;gap:4px;padding:3px 10px;font-size:11px;font-weight:700;display:inline-flex}.qn-badge-hot{color:#dc2626;background:#fef2f2;border:1px solid #fecaca}.qn-badge-new{color:var(--primary);background:#eff6ff;border:1px solid #bfdbfe}.qn-badge-cat{color:var(--secondary);background:#f0f9ff;border:1px solid #bae6fd}.qn-section-title{letter-spacing:-.3px;font-size:22px;font-weight:800;display:inline-block;position:relative;color:var(--text-main)!important}.qn-section-title:after{content:"";background:var(--primary);border-radius:2px;width:40px;height:3px;position:absolute;bottom:-6px;left:0}.tile-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;width:100%;display:grid}@media (max-width:640px){.tile-grid{grid-template-columns:repeat(2,1fr);gap:12px}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.4}}.animate-fade-up{animation:.5s both fadeInUp}.animate-slide-right{animation:.4s both slideInRight}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}input,select,textarea{background:var(--bg-white)!important;color:var(--text-main)!important;border:1px solid var(--border)!important;border-radius:var(--radius-sm)!important;font-family:Inter,sans-serif!important}input:focus,select:focus,textarea:focus{border-color:var(--primary)!important;outline:none!important;box-shadow:0 0 0 3px #0f4c811f!important}.filter-tab{cursor:pointer;border:1.5px solid var(--border);background:var(--bg-white);color:var(--text-secondary);white-space:nowrap;border-radius:20px;padding:8px 20px;font-size:13px;font-weight:600;transition:all .18s}.filter-tab:hover{border-color:var(--primary);color:var(--primary)}.filter-tab.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 12px #0f4c8140}.nav-link-hover{color:var(--text-secondary);border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;text-decoration:none;transition:all .18s}.nav-link-hover:hover{color:var(--primary);background:#0f4c8114}.nav-link-hover.active{background:var(--primary);color:#fff!important}@media (max-width:991px){.desktop-only{display:none!important}.mobile-burger-btn{display:block!important}}@media (min-width:992px){.mobile-only,.mobile-burger-btn{display:none!important}}.hero-overlay{background:linear-gradient(135deg,#0f4c81c7 0%,#0369a18c 60%,#0284c74d 100%)}.stats-bar{background:var(--primary);border-radius:var(--radius-md);gap:0;display:flex;overflow:hidden}.stats-item{text-align:center;border-right:1px solid #ffffff26;flex:1;padding:20px 12px}.stats-item:last-child{border-right:none}.zalo-float{z-index:110;flex-direction:column;gap:10px;display:flex;position:fixed;bottom:90px;left:20px}