:root{--theme-primary:#d90429;--theme-primary-dark:#a80320;--theme-light-bg:#feebee;--theme-light-border:#f8baba}body{font-family:"Inter",sans-serif;margin:0;background-color:#f9f9f9;color:#333;line-height:1.7}.article-container{max-width:800px;margin:40px auto;background-color:#fff;padding:20px 40px 40px;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.08);text-align:center}.logo-heylight{display:block;width:100%;max-width:700px;height:auto;margin:20px auto 40px}h1{font-size:2.5rem;font-weight:700;color:#1a1a1a;line-height:1.2;margin-bottom:20px;text-align:center}h3{font-size:1.8rem;font-weight:700;color:#2c2c2c;margin-top:40px;margin-bottom:20px;border-bottom:2px solid #f0f0f0;padding-bottom:10px;text-align:left}h4{font-size:1.3rem;font-weight:600;color:var(--theme-primary);margin-top:30px;text-align:left}p{font-size:1.1rem;margin-bottom:1.2em;text-align:left}a{color:var(--theme-primary);text-decoration:none;font-weight:600}a:hover{text-decoration:underline}.intro-box{background-color:var(--theme-light-bg);border:2px solid var(--theme-light-border);border-radius:10px;padding:25px;margin:20px 0 40px;text-align:center}.intro-box .intro-title{font-size:1.5rem;font-weight:700;color:#1a1a1a;margin-top:0;margin-bottom:20px;text-align:center}.intro-box .features-list{list-style:none;padding:0;margin:20px 0;display:flex;justify-content:center;flex-wrap:wrap;gap:15px 25px}.intro-box .features-list li{font-size:1.1rem;font-weight:600;margin-bottom:0}.intro-box .features-list li::before{content:"✔";color:#28a745;margin-right:8px;font-size:1.2rem}.example-box{font-size:1.2rem!important;background-color:#fff;padding:15px;border-radius:8px;border:2px dashed var(--theme-primary);margin-top:25px}.example-box strong{color:var(--theme-primary)}.steps-grid{display:grid;gap:20px;margin-top:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));text-align:left}.step{background-color:#f9f9f9;padding:20px;border-radius:8px;border:1px solid #eee}ul{list-style:none;padding-left:0;text-align:left}li{display:flex;align-items:center;font-size:1.1rem;margin-bottom:10px}li::before{margin-right:12px;font-size:1.5rem}.check::before{content:"✅"}.cross::before{content:"❌"}.cta-button{display:inline-block;background-color:var(--theme-primary);color:#fff;padding:15px 30px;border-radius:8px;font-size:1.1rem;font-weight:600;text-align:center;margin-top:20px;transition:background-color .3s ease}.cta-button:hover{background-color:var(--theme-primary-dark);text-decoration:none}@media (max-width:768px){.article-container{margin:20px;padding:20px}h1{font-size:2rem}h3{font-size:1.5rem}}