:root {
    --seo-accent: #27ADDC;
    --seo-accent-dark: #1B8BB5;
    --seo-dark: #0a1628;
    --seo-navy: #0f2133;
    --seo-gray: #f4f6f9;
    --seo-text: #1e293b;
    --seo-text-light: #64748b;
    --seo-white: #ffffff;
    --seo-radius: 12px;
    --seo-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.text-accent{color:var(--seo-accent)}
.text-white{color:var(--seo-white)}

/* ---- Shared ---- */
.seo-section{padding:100px 0;background:var(--seo-white)}
.seo-section-alt{background:var(--seo-gray)}
.seo-section-dark{background:var(--seo-dark)}
.seo-section-header{text-align:center;margin-bottom:64px}
.seo-section-tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--seo-accent);background:rgba(39,173,220,.1);padding:6px 16px;border-radius:20px;margin-bottom:16px}
.seo-tag-light{color:var(--seo-accent);background:rgba(39,173,220,.2)}
.seo-section-header h2{font-size:40px;font-weight:700;color:var(--seo-text);margin-bottom:16px}
.seo-section-header p{font-size:16px;color:var(--seo-text-light);max-width:640px;margin:0 auto}

/* ---- Buttons ---- */
.seo-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;border-radius:50px;font-size:16px;font-weight:600;text-decoration:none;transition:all .3s ease;cursor:pointer}
.seo-btn-primary{background:linear-gradient(135deg,var(--seo-accent),var(--seo-accent-dark));color:var(--seo-white);box-shadow:0 4px 20px rgba(39,173,220,.4)}
.seo-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(39,173,220,.5);color:var(--seo-white)}
.seo-btn-outline{background:transparent;color:var(--seo-white);border:1px solid rgba(255,255,255,.4)}
.seo-btn-outline:hover{border-color:var(--seo-white);background:rgba(255,255,255,.1);color:var(--seo-white)}

/* ---- Hero ---- */
.seo-hero{position:relative;min-height:85vh;display:flex;align-items:center;overflow:hidden}
.seo-hero-bg{position:absolute;inset:0;z-index:0}
.seo-hero-bg img{width:100%;height:100%;object-fit:cover}
.seo-hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,22,40,.92) 0%,rgba(10,22,40,.75) 50%,rgba(10,22,40,.6) 100%)}
.seo-hero-content{position:relative;z-index:2;width:100%}
.seo-hero-text{max-width:660px}
.seo-hero-badge{display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--seo-accent);border:1px solid rgba(39,173,220,.4);padding:6px 18px;border-radius:20px;margin-bottom:24px}
.seo-hero-text h1{font-size:64px;font-weight:800;color:var(--seo-white);line-height:1.15;margin-bottom:24px}
.seo-hero-desc{font-size:18px;color:rgba(255,255,255,.75);line-height:1.7;margin-bottom:36px}
.seo-hero-stats{display:flex;gap:48px;margin-bottom:40px}
.seo-stat-item strong{display:block;font-size:36px;font-weight:800;color:var(--seo-white);line-height:1.2}
.seo-stat-item span{font-size:14px;color:rgba(255,255,255,.55)}

/* ---- Reason Grid ---- */
.seo-reason-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.seo-reason-card{background:var(--seo-white);border-radius:var(--seo-radius);overflow:hidden;box-shadow:var(--seo-shadow);transition:transform .3s,box-shadow .3s}
.seo-reason-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.1)}
.seo-reason-img{width:100%;aspect-ratio:4/3;overflow:hidden}
.seo-reason-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.seo-reason-card:hover .seo-reason-img img{transform:scale(1.06)}
.seo-reason-body{padding:28px 28px 32px}
.seo-reason-num{display:inline-block;font-size:13px;font-weight:700;color:var(--seo-accent);background:rgba(39,173,220,.1);width:32px;height:32px;line-height:32px;text-align:center;border-radius:50%;margin-bottom:12px}
.seo-reason-body h3{font-size:19px;font-weight:700;color:var(--seo-text);margin-bottom:10px}
.seo-reason-body p{font-size:15px;color:var(--seo-text-light);line-height:1.7}

/* ---- Service Grid ---- */
.seo-service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.seo-service-card{background:var(--seo-white);border-radius:var(--seo-radius);padding:36px 30px;box-shadow:var(--seo-shadow);transition:transform .3s,box-shadow .3s}
.seo-service-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.1)}
.seo-service-card:nth-child(4),.seo-service-card:nth-child(5){grid-column:span 1}
.seo-service-card:nth-child(4){grid-column:1/2}
.seo-service-card:nth-child(5){grid-column:2/4}
.seo-service-icon{width:44px;height:44px;line-height:44px;background:linear-gradient(135deg,var(--seo-accent),var(--seo-accent-dark));color:var(--seo-white);border-radius:12px;text-align:center;font-size:18px;font-weight:700;margin-bottom:16px}
.seo-service-card h3{font-size:20px;font-weight:700;color:var(--seo-text);margin-bottom:10px}
.seo-service-card p{font-size:15px;color:var(--seo-text-light);line-height:1.7;margin-bottom:16px}
.seo-service-card ul{list-style:none;padding:0}
.seo-service-card ul li{position:relative;padding-left:20px;font-size:14px;color:var(--seo-text);margin-bottom:6px}
.seo-service-card ul li::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;border-radius:50%;background:var(--seo-accent)}

/* ---- Advantage Grid ---- */
.seo-advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.seo-advantage-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:var(--seo-radius);padding:40px 32px;text-align:center;transition:all .3s}
.seo-advantage-card:hover{border-color:var(--seo-accent);background:rgba(39,173,220,.08);transform:translateY(-4px)}
.seo-advantage-num{font-size:42px;font-weight:800;background:linear-gradient(135deg,var(--seo-accent),var(--seo-accent-dark));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:12px}
.seo-advantage-card h3{font-size:18px;font-weight:700;color:var(--seo-white);margin-bottom:10px}
.seo-advantage-card p{font-size:15px;color:rgba(255,255,255,.6);line-height:1.7}

/* ---- Case Grid ---- */
.seo-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.seo-case-card{background:var(--seo-white);border-radius:var(--seo-radius);overflow:hidden;box-shadow:var(--seo-shadow);transition:transform .3s,box-shadow .3s}
.seo-case-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.12)}
.seo-case-img{aspect-ratio:16/10;overflow:hidden}
.seo-case-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.seo-case-card:hover .seo-case-img img{transform:scale(1.06)}
.seo-case-body{padding:24px}
.seo-case-body h4{font-size:17px;font-weight:700;color:var(--seo-text);margin-bottom:8px}
.seo-case-body p{font-size:14px;color:var(--seo-text-light);line-height:1.6;margin-bottom:12px}
.seo-case-link{font-size:14px;font-weight:600;color:var(--seo-accent);text-decoration:none}
.seo-case-link:hover{text-decoration:underline}

/* ---- CTA ---- */
.seo-cta{padding:100px 0;background:linear-gradient(180deg,var(--seo-white) 0%,var(--seo-gray) 100%)}
.seo-cta-box{background:linear-gradient(135deg,var(--seo-dark),var(--seo-navy));border-radius:20px;padding:72px 48px;text-align:center;position:relative;overflow:hidden}
.seo-cta-box::before{content:"";position:absolute;top:-80px;right:-80px;width:280px;height:280px;background:radial-gradient(circle,rgba(39,173,220,.15) 0%,transparent 70%);border-radius:50%}
.seo-cta-box h2{font-size:36px;font-weight:700;color:var(--seo-white);margin-bottom:16px;position:relative;line-height:1.4}
.seo-cta-box p{font-size:17px;color:rgba(255,255,255,.65);margin-bottom:36px;position:relative}
.seo-cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;position:relative}

/* ---- Container ---- */
.seo-section .container,.seo-hero .container,.seo-cta .container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---- Responsive ---- */
@media(max-width:991px){
    .seo-section{padding:64px 0}
    .seo-hero{min-height:70vh}
    .seo-hero-text h1{font-size:44px}
    .seo-section-header h2{font-size:32px}
    .seo-reason-grid{grid-template-columns:repeat(2,1fr)}
    .seo-service-grid{grid-template-columns:repeat(2,1fr)}
    .seo-service-card:nth-child(4),.seo-service-card:nth-child(5){grid-column:auto}
    .seo-case-grid{grid-template-columns:repeat(2,1fr)}
    .seo-hero-stats{gap:28px}
}
@media(max-width:767px){
    .seo-section{padding:48px 0}
    .seo-hero{min-height:60vh}
    .seo-hero-text h1{font-size:34px}
    .seo-hero-desc{font-size:16px}
    .seo-section-header h2{font-size:28px}
    .seo-reason-grid{grid-template-columns:1fr}
    .seo-service-grid{grid-template-columns:1fr}
    .seo-advantage-grid{grid-template-columns:1fr}
    .seo-case-grid{grid-template-columns:1fr}
    .seo-hero-stats{gap:20px}
    .seo-stat-item strong{font-size:26px}
    .seo-cta-box{padding:48px 24px}
    .seo-cta-box h2{font-size:26px}
}