/* ============================================================
   一伟网络首页 - 合并样式表
   包含: normalize + theme + 页面样式 + 响应式适配
   ============================================================ */

/* ---------- Normalize / Reset ---------- */
html{line-height:1.15;-webkit-text-size-adjust:100%}
body{margin:0}
main{display:block}
h1{font-size:2em;margin:.67em 0}
a{background-color:transparent}
img{border-style:none}
button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}
button,input{overflow:visible}
button,select{text-transform:none}
[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}
::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}
details{display:block}
summary{display:list-item}
template{display:none}
[hidden]{display:none}
*,*::before,*::after{box-sizing:border-box}

/* ---------- Base ---------- */
body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
    color:#333;
    background:#fff;
    line-height:1.15;
}
img{max-width:100%;height:auto}

/* ---------- Layout ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.wrap-narrow{max-width:1000px;margin:0 auto;padding:0 20px}

/* ============================================================
   Navigation
   ============================================================ */
.nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
    height:70px;
}
.nav-logo{display:flex;align-items:center;text-decoration:none}
.nav-logo img{height:28px;width:28px;margin-right:8px}
.nav-logo-text{font-size:20px;color:#008affe6;font-weight:600}
.nav-links{display:flex;align-items:center}
.nav-link{
    font-size:15px;padding:10px 14px;
    text-decoration:none;color:rgba(31,45,61,.6);font-weight:bold;
}

/* ============================================================
   Part 1 - Hero
   ============================================================ */
.hero{display:flex;align-items:center;padding:80px 0;gap:40px}
.hero-text{flex:1;min-width:0}
.hero-title{font-weight:700;line-height:1.3;font-size:40px;color:#152c5b;margin:0 0 16px}
.hero-title strong{color:#008aff}
.hero-desc{color:#718096;font-size:17px;margin:0 0 16px;font-weight:300;line-height:1.7}
.hero-img{flex:1;min-width:0}
.hero-img img{width:100%;height:auto;display:block}

/* ============================================================
   Part 2 - Solutions
   ============================================================ */
.solutions{background:#111;padding:64px 0;color:#fff}
.section-center{text-align:center}
.badge{
    display:inline-block;color:#111;background:#fff;
    padding:11px 18px;font-size:13px;line-height:1;font-weight:800;border-radius:80px;
}
.section-title{font-size:30px;color:#fff;margin:20px 0 10px;line-height:1.5}
.section-desc{color:rgba(255,255,255,.7);font-size:17px;margin:8px 0 0;line-height:1.8;font-weight:300}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.card{
    background:#1a1a1a;border-radius:12px;border:1px solid #333;
    padding:28px;text-align:center;
}
.card img{height:140px;margin:20px auto 32px;display:block}
.card-title{font-weight:600;font-size:22px;margin:0 0 14px;line-height:1.3;color:#fff}
.card-info{font-size:15px;color:rgba(255,255,255,.7);line-height:1.7;margin:0}

/* ============================================================
   Part 3 - Feature Rows
   ============================================================ */
.feature{padding:72px 0}
.feature-row{display:flex;align-items:center;gap:48px}
.feature-media{flex:1;min-width:0}
.feature-media img{
    width:100%;height:auto;display:block;
    padding:8px;border-radius:6px;background:#fcfcfc;
    box-shadow:0 2px 4px rgba(0,0,0,.12),0 0 6px rgba(0,0,0,.04);
}
.feature-text{flex:1;min-width:0}
.feature-text h3{font-weight:600;font-size:26px;color:#152c5b;margin:0 0 10px;line-height:1.5}
.feature-text p{font-size:17px;color:#718096;margin:20px 0;line-height:1.7;font-weight:300}
.feature-list{list-style:none;padding:0;margin:0}
.feature-list li{display:flex;align-items:center;padding:8px 0}
.feature-list .dot{
    width:32px;height:32px;min-width:32px;
    background:#008aff;border-radius:50%;margin-right:16px;
}
.feature-list .label{font-size:15px;color:#152c5b;font-weight:600;line-height:1.5}

/* ============================================================
   Part 4 - CTA Banner
   ============================================================ */
.cta{background:#0e0b2b;padding:80px 0}
.cta-content{text-align:center;margin:24px 0}
.cta-content h2{color:#fff;font-size:32px;margin:0 0 10px;font-weight:600;line-height:1.5}
.cta-content h4{color:#fff;font-weight:600;font-size:20px;line-height:1.5;margin:14px 0}
.cta-btn{
    display:inline-block;font-size:16px;color:#fff;background:#008aff;
    margin-top:20px;font-weight:600;line-height:1.5;
    border-radius:6px;text-decoration:none;padding:12px 28px;
    transition:background .2s;
}
.cta-btn:hover{background:#0075d9}

/* ============================================================
   Part 5 - Highlights Grid
   ============================================================ */
.highlights-wrap{padding:48px 0;background:#fff}
.highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.highlight{
    display:flex;align-items:flex-start;
    border:1px solid #e0e0e0;border-radius:12px;background:#fff;
    padding:32px;
}
.highlight-tag{
    margin-right:16px;min-width:auto;flex-shrink:0;
    color:#fff;font-size:12px;padding:6px 11px;
    border-radius:80px;background:#ffbe3d;line-height:1;font-weight:700;
}
.highlight-tag.green{background:#5cc9a7}
.highlight-tag.red{background:#f25767}
.highlight-title{font-size:18px;color:#152c5b;margin-bottom:8px;line-height:1.3;font-weight:600}
.highlight-desc{font-size:14px;color:#718096;font-weight:400;line-height:1.7}

/* ============================================================
   Footer
   ============================================================ */
.footer{background:#171347;padding:80px 0 24px}
.footer-content{display:flex;justify-content:space-between;gap:40px}
.footer-brand{flex:1}
.footer-logo{display:flex;align-items:center;text-decoration:none;margin-bottom:16px}
.footer-logo img{height:48px;width:48px;margin-right:8px}
.footer-logo-text{font-size:16px;color:#008aff;font-weight:600}
.footer-about{font-size:14px;color:rgba(255,255,255,.8);line-height:1.7;margin:0}
.footer-copy{flex:0 0 auto;align-self:flex-end}
.footer-copy p{font-size:13px;color:#a0aec0;line-height:1.7;margin:0}
.footer-copy a{text-decoration:none;color:rgba(255,255,255,.9)}

/* ============================================================
   Responsive - Tablet (<=1024px)
   ============================================================ */
@media(max-width:1024px){
    .card-grid{grid-template-columns:repeat(2,1fr)}
    .highlights{grid-template-columns:repeat(2,1fr)}
    .hero-title{font-size:34px}
    .section-title{font-size:26px}
    .feature-text h3{font-size:22px}
    .cta-content h2{font-size:28px}
}

/* ============================================================
   Responsive - Mobile (<=768px)
   ============================================================ */
@media(max-width:768px){
    /* Nav */
    .nav{height:auto;flex-wrap:wrap;padding:12px 0;gap:8px}
    .nav-link{padding:6px 8px;font-size:14px}

    /* Hero */
    .hero{flex-direction:column;padding:40px 0;gap:24px;text-align:center}
    .hero-title{font-size:28px}
    .hero-desc{font-size:15px}

    /* Solutions */
    .solutions{padding:40px 0}
    .section-title{font-size:22px}
    .section-desc{font-size:15px}
    .card-grid{grid-template-columns:1fr;margin-top:32px;gap:16px}
    .card{padding:20px}
    .card img{height:110px;margin:16px auto 24px}
    .card-title{font-size:18px}
    .card-info{font-size:14px}

    /* Features */
    .feature{padding:40px 0}
    .feature-row{flex-direction:column;gap:24px}
    .feature-text h3{font-size:20px}
    .feature-text p{font-size:15px;margin:14px 0}

    /* CTA */
    .cta{padding:72px 0 60px}
    .cta-content h2{font-size:24px}
    .cta-content h4{font-size:16px}

    /* Highlights */
    .highlights-wrap{padding:24px 0}
    .highlights{grid-template-columns:1fr;gap:12px}
    .highlight{padding:20px}
    .highlight-title{font-size:16px}
    .highlight-desc{font-size:13px}

    /* Footer */
    .footer{padding:60px 0 20px}
    .footer-content{flex-direction:column;gap:24px}
    .footer-copy{align-self:flex-start}
}