:root{--ad-teal:#1B7A6E;--ad-teal-hover:#156158;--ad-gold:#D4A853;--ad-ink:#0A1628;--ad-body-text:#1E1E1E;--ad-muted:#5F6368;--ad-warm-white:#FAFAF7;--ad-sage-mist:#EEF2F0;--ad-sage:#E4EBE7;--ad-border:#D8DCD9;}.ad-page *,.ad-page *::before,.ad-page *::after{box-sizing:border-box;margin:0;padding:0;}.ad-page{font-family:'Inter',Arial,Helvetica,sans-serif;font-size:18px;line-height:1.75;letter-spacing:0.01em;color:var(--ad-body-text);background:var(--ad-warm-white);-webkit-font-smoothing:antialiased;}.ad-container{max-width:760px;margin:0 auto;padding:0 5%;}.ad-container--wide{max-width:1100px;}.ad-hero{padding:80px 0 64px;background:var(--ad-ink);color:var(--ad-warm-white);}.ad-hero .ad-eyebrow{font-size:13px;font-weight:500;letter-spacing:3px;text-transform:uppercase;color:var(--ad-teal);margin-bottom:12px;}.ad-hero h1{font-family:'Inter',Arial,Helvetica,sans-serif;font-size:clamp(28px,4.5vw,40px);font-weight:700;line-height:1.15;letter-spacing:-0.02em;color:var(--ad-warm-white);margin-bottom:20px;max-width:640px;}.ad-hero p{font-size:17px;color:rgba(255,255,255,0.6);max-width:560px;line-height:1.7;}.ad-hero-meta{display:flex;gap:24px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,0.1);font-size:13px;color:rgba(255,255,255,0.4);}.ad-toc{background:var(--ad-sage-mist);padding:48px 0;}.ad-toc-list{list-style:none;padding:0;columns:2;column-gap:32px;}.ad-toc-list li{padding:8px 0;border-bottom:1px solid var(--ad-border);break-inside:avoid;}.ad-toc-list a{font-size:15px;font-weight:500;color:var(--ad-ink);text-decoration:none;display:flex;align-items:center;gap:10px;transition:color 0.2s ease-in-out;}.ad-toc-list a:hover{color:var(--ad-teal);}.ad-toc-num{font-size:13px;font-weight:700;color:var(--ad-teal);min-width:20px;}.ad-article{padding:64px 0;}.ad-article h2{font-family:'Inter',Arial,Helvetica,sans-serif;font-size:26px;font-weight:700;line-height:1.2;letter-spacing:-0.02em;color:var(--ad-ink);margin:56px 0 20px;padding-top:32px;border-top:1px solid var(--ad-border);}.ad-article h2:first-child{margin-top:0;padding-top:0;border-top:none;}.ad-article h3{font-family:'Inter',Arial,Helvetica,sans-serif;font-size:20px;font-weight:700;line-height:1.25;letter-spacing:-0.01em;color:var(--ad-ink);margin:36px 0 12px;}.ad-article p{margin-bottom:18px;}.ad-article a{color:var(--ad-teal);text-decoration:none;font-weight:500;transition:color 0.2s ease-in-out;}.ad-article a:hover{color:var(--ad-teal-hover);}.ad-article strong{color:var(--ad-ink);}.ad-article ul,.ad-article ol{margin:0 0 20px 24px;}.ad-article li{margin-bottom:8px;line-height:1.65;}.ad-callout{background:var(--ad-sage-mist);border-left:3px solid var(--ad-teal);padding:24px 28px;margin:28px 0;font-size:16px;line-height:1.65;}.ad-callout strong{display:block;margin-bottom:6px;color:var(--ad-ink);}.ad-callout p{margin-bottom:8px;}.ad-callout p:last-child{margin-bottom:0;}.ad-insight{background:var(--ad-ink);color:var(--ad-warm-white);padding:28px 32px;margin:32px 0;border-radius:2px;}.ad-insight strong{color:var(--ad-teal);display:block;font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;}.ad-insight p{margin-bottom:0;font-size:16px;line-height:1.65;}.ad-cases-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:28px 0;}.ad-case-card{background:var(--ad-warm-white);border:1px solid var(--ad-border);border-radius:2px;padding:24px;}.ad-case-name{font-weight:700;font-size:17px;color:var(--ad-ink);margin-bottom:4px;}.ad-case-meta{font-size:13px;color:var(--ad-teal);font-weight:600;margin-bottom:10px;}.ad-case-card p{font-size:15px;line-height:1.6;color:var(--ad-muted);margin-bottom:0;}.ad-mistakes{list-style:none;margin:0 0 20px 0;padding:0;}.ad-mistakes li{padding:16px 0 16px 0;border-bottom:1px solid var(--ad-border);margin-bottom:0;}.ad-mistakes li:last-child{border-bottom:none;}.ad-mistake-title{font-weight:700;color:var(--ad-ink);margin-bottom:4px;}.ad-mistake-desc{font-size:16px;color:var(--ad-muted);line-height:1.6;}.ad-cta{background:var(--ad-ink);padding:80px 0;text-align:center;color:var(--ad-warm-white);}.ad-cta h2{font-size:26px;font-weight:700;color:var(--ad-warm-white);margin-bottom:12px;border:none;padding:0;}.ad-cta p{font-size:17px;color:rgba(255,255,255,0.6);max-width:520px;margin:0 auto 28px;line-height:1.65;}.ad-btn{display:inline-block;font-family:'Inter',Arial,Helvetica,sans-serif;font-size:14px;font-weight:500;line-height:17px;letter-spacing:3px;text-transform:uppercase;text-decoration:none;text-align:center;color:#FAFAF7;background-color:var(--ad-teal);padding:14px 32px;border:0;border-radius:2px;cursor:pointer;transition:background-color 0.2s ease-in-out,transform 0.15s ease;}.ad-btn:hover{background-color:var(--ad-teal-hover);transform:translateY(-1px);}.ad-btn--outline{background:transparent;border:2px solid rgba(255,255,255,0.3);color:#FAFAF7;margin-left:12px;}.ad-btn--outline:hover{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.5);}.ad-cta-sub{font-size:14px;color:rgba(255,255,255,0.35);margin-top:16px;}.ad-cta-sub a{color:var(--ad-teal);}.ad-checklist{list-style:none;padding:0;margin:20px 0;}.ad-checklist li{position:relative;padding-left:28px;margin-bottom:10px;font-size:16px;line-height:1.6;}.ad-checklist li::before{content:'';position:absolute;left:0;top:5px;width:16px;height:16px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%231B7A6E'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");background-size:contain;}@media (max-width:768px){.ad-toc-list{columns:1;}.ad-cases-grid{grid-template-columns:1fr;}.ad-hero-meta{flex-direction:column;gap:8px;}}@media (max-width:640px){.ad-hero{padding:56px 0 48px;}.ad-article{padding:48px 0;}.ad-cta{padding:56px 0;}.ad-btn--outline{margin-left:0;margin-top:12px;}}@media (prefers-reduced-motion:reduce){.ad-page *,.ad-page *::before,.ad-page *::after{animation-duration:0.01ms !important;transition-duration:0.01ms !important;}}