:root{--bichngoc-10:#f2f7fe;--bichngoc-50:#e5effc;--bichngoc-100:#b0d0f6;--bichngoc-200:#96c0f3;--bichngoc-300:#7cb0f0;--bichngoc-400:#62a1ee;--bichngoc-500:#468fea;--bichngoc-600:#2079e6;--bichngoc-700:#1665c5;--bichngoc-800:#11509d;--bichngoc-900:#0d3c76;--blue-50:#eff6ff;--blue-100:#dbeafe;--blue-200:#bfdbfe;--blue-300:#93c5fd;--blue-400:#60a5fa;--blue-500:#3b82f6;--blue-600:#2563eb;--blue-700:#1d4ed8;--pink-50:#fdf2f8;--pink-100:#fce7f3;--pink-200:#fbcfe8;--pink-300:#f9a8d4;--pink-400:#f472b6;--pink-500:#ec4899;--pink-600:#db2777;--rose-500:#f43f5e;--rose-600:#e11d48;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--red-600:#dc2626;--red-700:#b91c1c}@keyframes gradient-shift{0%,to{background-position:0 50%}50%{background-position:100% 50%}}*{margin:0;padding:0;box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth}body{font-family:Inter,Segoe 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(min-width:768px){.main-card{padding:2.5rem}}.image-section{margin-bottom:1.5rem}.image-container{position:relative;margin-left:auto;margin-right:auto;aspect-ratio:4/3;width:100%;max-width:24rem;overflow:hidden;border-radius:1rem;box-shadow:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04)}.image-cover{object-fit:cover}.title-section{margin-bottom:1rem}.title{color:var(--bichngoc-700);text-align:center;font-size:1.25rem;font-weight:700;line-height:1.25;letter-spacing:-.025em}@media (min-width:768px){.title{font-size:1.5rem}}.description{color:var(--bichngoc-700);margin-bottom:1.75rem;text-align:center;font-size:1rem;line-height:1.625}.font-medium{font-weight:500}.description-highlight{color:var(--bichngoc-500);font-weight:600}.contact-section{margin-bottom:1.25rem}.contact-label{text-align:center;font-size:.875rem;font-weight:500;letter-spacing:.025em;color:var(--gray-600)}.contact-label,.hotline-wrapper{margin-bottom:1rem}.hotline-button{position:relative;display:flex;width:100%;align-items:center;justify-content:center;gap:.75rem;overflow:hidden;border-radius:1rem;background:linear-gradient(to right,var(--pink-500),var(--rose-500),var(--pink-600));padding-top:1rem;padding-bottom:1rem;font-size:1.125rem;font-weight:700;color:white;box-shadow:0 10px 15px -3px rgba(0,0,0,.1);transition:box-shadow .2s;text-decoration:none}.hotline-button:hover{box-shadow:0 20px 25px -5px 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