/* =============================================
   宜丰电子科技 – 华为级极简设计
   核心原则：克制、留白、直角、大图、黑白红
   ============================================= */

/* ---------- Design Tokens ---------- */
:root{
    --black:#000;
    --white:#fff;
    --grey-50:#f5f5f5;
    --grey-100:#eee;
    --grey-200:#ddd;
    --grey-400:#999;
    --grey-600:#666;
    --grey-800:#333;
    --grey-900:#191919;
    --red:#CF0A2C;          /* 华为红 */
    --red-dark:#A30820;
    --font:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    --ease:cubic-bezier(.4,0,.2,1);
    --max:1200px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:17px;-webkit-font-smoothing:antialiased}
body{
    font-family:var(--font);color:var(--grey-900);background:var(--white);
    line-height:1.8;overflow-x:hidden;font-size:17px;
}
.js body.page-transition{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.js body.page-transition.page-ready{
    opacity:1;
    transform:translateY(0);
}
.js body.page-transition.page-leaving{
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:var(--font)}
/* 键盘焦点可见性 – 可访问性 */
:focus-visible{
    outline:2px solid var(--red);
    outline-offset:2px;
}
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
    outline:none;
    border-color:var(--red);
    box-shadow:0 0 0 3px rgba(207,10,44,.12);
}
.container{max-width:var(--max);margin:0 auto;padding:0 40px}

/* ===================
   HEADER – 华为风格透明→白底
   =================== */
.header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    height:56px;
    transition:background .4s var(--ease),box-shadow .4s var(--ease);
}
.header.scrolled{
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    box-shadow:0 1px 0 rgba(0,0,0,.08);
}
.header-inner{
    max-width:1440px;margin:0 auto;height:100%;
    display:flex;align-items:center;justify-content:space-between;
    padding:0 40px;
}
.logo{display:flex;align-items:center;gap:10px;z-index:1001}
.logo-img{
    height:52px;width:auto;
    display:block;
    transition:filter .3s var(--ease);
}
/* 在浅色/滚动后的 header 中不需要特殊处理，logo 本身是彩色的 */

.logo-name{
    font-size:15px;font-weight:700;
    color:var(--white);transition:color .3s var(--ease);
}
.header.scrolled .logo-name{color:var(--grey-900)}

/* Nav */
.nav{display:flex;gap:0}
.nav-link{
    padding:16px 20px;font-size:14px;font-weight:400;
    color:rgba(255,255,255,.85);letter-spacing:.5px;
    position:relative;transition:color .3s var(--ease);
}
.header.scrolled .nav-link{color:var(--grey-600)}
.nav-link:hover,.nav-link.active{color:var(--white)}
.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active{color:var(--red)}
.nav-link::after{
    content:'';position:absolute;bottom:12px;left:20px;right:20px;
    height:2px;background:var(--red);
    transform:scaleX(0);transition:transform .3s var(--ease);
}
.nav-link.active::after,.nav-link:hover::after{transform:scaleX(1)}

/* Hamburger */
.hamburger{
    display:none;background:none;border:none;cursor:pointer;
    width:24px;height:20px;position:relative;z-index:1001;
}
.hamburger span{
    display:block;width:100%;height:1.5px;
    background:var(--white);position:absolute;left:0;
    transition:all .3s var(--ease);
}
.header.scrolled .hamburger span{background:var(--grey-900)}
.hamburger span:first-child{top:4px}
.hamburger span:last-child{bottom:4px}
.hamburger.open span:first-child{top:50%;transform:translateY(-50%) rotate(45deg)}
.hamburger.open span:last-child{bottom:auto;top:50%;transform:translateY(-50%) rotate(-45deg)}

/* ===================
   HERO – 全屏大图轮播
   =================== */
.hero{position:relative;height:100vh;min-height:640px;overflow:hidden;background:var(--black)}
.hero-slide{
    position:absolute;inset:0;opacity:0;
    transition:opacity 1.2s ease;
}
.hero-slide.active{opacity:1;z-index:1}
.hero-img{
    position:absolute;inset:0;
    transform:scale(1.08);
    transition:transform 7s ease-out;
}
.hero-img img{
    width:100%;height:100%;object-fit:cover;
}
.hero-slide.active .hero-img{transform:scale(1)}
/* 华为式底部渐变遮罩，不是全覆盖 */
.hero-slide::after{
    content:'';position:absolute;inset:0;
    background:linear-gradient(to top,rgba(0,0,0,.7) 0%,rgba(0,0,0,.15) 50%,rgba(0,0,0,.25) 100%);
    z-index:1;
}
.hero-caption{
    position:absolute;bottom:140px;left:0;right:0;z-index:2;
    padding:0 40px;
    max-width:1440px;margin:0 auto;
}
.hero-caption h1{
    font-size:clamp(36px,5vw,56px);font-weight:900;
    color:var(--white);line-height:1.2;
    margin-bottom:16px;letter-spacing:-1px;
    opacity:0;transform:translateY(30px);
    transition:all .8s var(--ease) .2s;
}
.hero-slide.active .hero-caption h1{opacity:1;transform:translateY(0)}
.hero-caption p{
    font-size:18px;color:rgba(255,255,255,.7);font-weight:300;
    margin-bottom:28px;max-width:480px;
    opacity:0;transform:translateY(20px);
    transition:all .8s var(--ease) .4s;
}
.hero-slide.active .hero-caption p{opacity:1;transform:translateY(0)}
.hero-btn{
    display:inline-block;font-size:14px;font-weight:500;
    color:var(--white);border:1px solid rgba(255,255,255,.5);
    padding:12px 32px;
    opacity:0;transform:translateY(20px);
    transition:opacity .8s var(--ease) .55s, transform .8s var(--ease) .55s, background .3s var(--ease), border-color .3s var(--ease);
}
.hero-slide.active .hero-btn{opacity:1;transform:translateY(0)}
.hero-btn:hover{background:var(--red);border-color:var(--red)}

/* Dots */
.hero-dots{
    position:absolute;bottom:60px;left:40px;z-index:10;
    display:flex;gap:10px;
}
.dot{
    width:32px;height:2px;border:none;cursor:pointer;
    background:rgba(255,255,255,.3);padding:0;
    transition:all .4s var(--ease);
}
.dot.active{background:var(--white);width:48px}

/* ===================
   PAGE HERO – 子页面顶部横幅
   =================== */
.page-hero{
    padding:140px 0 60px;
    background:var(--grey-900);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% 0%,rgba(207,10,44,.08),transparent),
        linear-gradient(180deg,rgba(255,255,255,.02) 0%,transparent 100%);
    text-align:center;
    position:relative;
    overflow:hidden;
}
.page-hero::after{
    content:'';position:absolute;bottom:0;left:0;right:0;
    height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
}
.page-hero h1{
    font-size:clamp(28px,4vw,42px);font-weight:900;
    color:var(--white);margin-bottom:12px;
}
.page-hero .breadcrumb{
    font-size:13px;color:rgba(255,255,255,.4);
}
.page-hero .breadcrumb a{
    color:rgba(255,255,255,.6);
    transition:color .3s var(--ease);
}
.page-hero .breadcrumb a:hover{color:var(--white)}

/* ===================
   TICKER – 新闻快讯条
   =================== */
.ticker{
    background:var(--grey-50);border-bottom:1px solid var(--grey-100);
    padding:14px 0;
}
.ticker-inner{display:flex;align-items:center;gap:16px}
.ticker-tag{
    flex-shrink:0;font-size:11px;font-weight:700;
    color:var(--white);background:var(--red);
    padding:3px 10px;letter-spacing:1px;
}
.ticker-inner p{font-size:15px;color:var(--grey-600)}

/* ===================
   通用 Section 标题
   =================== */
.section-head{margin-bottom:56px}
.section-head.center{text-align:center}
.label{
    display:block;font-size:12px;font-weight:700;
    color:var(--red);letter-spacing:3px;
    margin-bottom:12px;
}
.label.light{color:rgba(255,255,255,.6)}
.section-head h2,
.split-text h2{
    font-size:clamp(30px,3.5vw,42px);font-weight:900;
    line-height:1.3;letter-spacing:-0.5px;color:var(--grey-900);
}

/* ===================
   ABOUT – 左右分栏（华为式）
   =================== */
.about{padding:100px 0}
.split{
    display:grid;grid-template-columns:1fr 1fr;gap:60px;
    align-items:center;
}
.split.reverse{direction:rtl}
.split.reverse>*{direction:ltr}
.split-media{overflow:hidden}
.split-media img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .6s var(--ease);
}
.split-media:hover img{transform:scale(1.03)}
.split-text{padding:20px 0}
.split-text p{
    font-size:16px;color:var(--grey-600);
    margin-bottom:16px;line-height:1.9;
}
.split-text strong{color:var(--red);font-weight:600}

/* KPI 行 */
.kpi-row{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:0;margin-top:36px;
    border-top:1px solid var(--grey-200);padding-top:28px;
}
.kpi{text-align:center}
.kpi strong{
    display:block;font-size:32px;font-weight:900;
    color:var(--grey-900);line-height:1.2;
    font-variant-numeric:tabular-nums;
}
.kpi span{font-size:13px;color:var(--grey-400);letter-spacing:1px}

/* ===================
   CTA 行动号召横幅
   =================== */
.cta-banner{
    padding:80px 0;
    background:var(--grey-900);
    text-align:center;
    position:relative;
    overflow:hidden;
}
.cta-banner::before{
    content:'';position:absolute;inset:0;
    background:radial-gradient(ellipse 60% 80% at 50% 50%,rgba(207,10,44,.1),transparent);
}
.cta-banner .container{position:relative;z-index:1}
.cta-banner h2{
    font-size:clamp(24px,3vw,36px);font-weight:900;
    color:var(--white);margin-bottom:16px;
}
.cta-banner p{
    font-size:16px;color:rgba(255,255,255,.5);
    margin-bottom:32px;max-width:480px;margin-left:auto;margin-right:auto;
}
.cta-btn{
    display:inline-block;padding:14px 40px;
    font-size:15px;font-weight:600;
    color:var(--white);background:var(--red);
    border:none;cursor:pointer;
    transition:background .3s var(--ease),transform .2s var(--ease);
}
.cta-btn:hover{background:var(--red-dark);transform:translateY(-2px)}

/* ===================
   DIVISIONS – 三大业务大图卡片
   =================== */
.divisions{padding:100px 0 0;background:var(--grey-50)}
.div-grid{
    display:grid;grid-template-columns:repeat(3,1fr);
    gap:1px;background:var(--grey-200); /* 1px 分隔线式间距 */
}
.div-card{
    position:relative;display:block;
    height:520px;overflow:hidden;cursor:pointer;
    background:var(--black);
}
.div-card img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .8s var(--ease);
}
.div-card:hover img{transform:scale(1.06)}
.div-card-overlay{
    position:absolute;inset:0;
    background:linear-gradient(to top,rgba(0,0,0,.75) 0%,rgba(0,0,0,.1) 60%,transparent 100%);
    transition:background .4s var(--ease);
}
.div-card:hover .div-card-overlay{
    background:linear-gradient(to top,rgba(0,0,0,.85) 0%,rgba(0,0,0,.3) 60%,rgba(0,0,0,.15) 100%);
}
.div-card-body{
    position:absolute;bottom:0;left:0;right:0;
    padding:36px 32px;z-index:2;color:var(--white);
}
.div-card-num{
    font-size:48px;font-weight:900;
    color:rgba(255,255,255,.12);line-height:1;
    display:block;margin-bottom:8px;
}
.div-card-body h3{
    font-size:24px;font-weight:700;margin-bottom:10px;
    letter-spacing:.5px;
}
.div-card-body p{
    font-size:14px;color:rgba(255,255,255,.65);
    line-height:1.7;margin-bottom:16px;
}
.div-card-link{
    font-size:14px;font-weight:500;color:var(--white);
    opacity:0;transform:translateY(8px);
    transition:all .4s var(--ease);
}
.div-card:hover .div-card-link{opacity:1;transform:translateY(0)}

/* ===================
   ADVANTAGES – 核心优势
   =================== */
.advantages{padding:100px 0 0;background:var(--white)}
.adv-strip{
    margin-top:80px;padding:80px 0;
    background:var(--grey-900);
}
.adv-cards{
    display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
    background:rgba(255,255,255,.06);
}
.adv-card{
    padding:40px 32px;
    background:var(--grey-900);
    transition:background .3s var(--ease);
}
.adv-card:hover{background:rgba(255,255,255,.04)}
.adv-icon{
    color:var(--red);margin-bottom:24px;
    width:40px;height:40px;
}
.adv-card h4{
    font-size:18px;font-weight:700;
    color:var(--white);margin-bottom:12px;
}
.adv-card p{
    font-size:14px;color:rgba(255,255,255,.5);line-height:1.8;
}

/* ===================
   PRODUCTS – 五大领域
   =================== */
.products{padding:100px 0;background:var(--white)}
.prod-grid{
    display:grid;grid-template-columns:repeat(5,1fr);gap:0;
    border:1px solid var(--grey-200);
}
.prod-item{
    padding:48px 28px;text-align:center;
    border-right:1px solid var(--grey-200);
    transition:background .3s var(--ease);
}
.prod-item:last-child{border-right:none}
.prod-item:hover{background:var(--grey-50)}
.prod-icon{
    width:36px;height:36px;margin:0 auto 16px;
    color:var(--grey-800);
    transition:color .3s var(--ease);
}
.prod-item:hover .prod-icon{color:var(--red)}
.prod-item h4{
    font-size:17px;font-weight:700;
    color:var(--grey-900);margin-bottom:8px;
}
.prod-item p{font-size:14px;color:var(--grey-400);line-height:1.8}

/* ===================
   MATERIALS BANNER – 深色全宽
   =================== */
.materials-banner{
    position:relative;min-height:500px;
    display:flex;align-items:center;
    overflow:hidden;
}
.materials-bg{
    position:absolute;inset:0;
    background-size:cover;background-position:center;
    filter:brightness(.25);
}
.materials-content{
    position:relative;z-index:2;width:100%;
    padding:100px 0;
}
.materials-content h2{
    font-size:clamp(26px,3vw,36px);font-weight:900;
    color:var(--white);margin-bottom:48px;
}
.mat-row{
    display:grid;grid-template-columns:repeat(3,1fr);gap:0;
}
.mat-item{
    padding:40px 36px;
    border-right:1px solid rgba(255,255,255,.08);
}
.mat-item:last-child{border-right:none}
.mat-item h3{
    font-size:32px;font-weight:900;
    color:var(--red);margin-bottom:12px;
}
.mat-item p{
    font-size:14px;color:rgba(255,255,255,.55);line-height:1.8;
}

/* ===================
   PARTNERS – 合作伙伴
   =================== */
.partners{padding:100px 0;background:var(--grey-50)}
.partner-grid{
    display:grid;grid-template-columns:repeat(3,1fr);
    gap:0;border:1px solid var(--grey-200);background:var(--white);
}
.partner-item{
    padding:40px 36px;text-align:center;
    border-right:1px solid var(--grey-200);
    border-bottom:1px solid var(--grey-200);
    transition:background .3s var(--ease);
    display:flex;align-items:center;justify-content:center;
}
.partner-item:nth-child(3n){border-right:none}
.partner-item:nth-last-child(-n+3){border-bottom:none}
.partner-item:hover{background:var(--grey-50)}
.partner-logo{
    max-width:140px;max-height:50px;
    width:auto;height:auto;
    display:block;margin:0 auto;
    filter:grayscale(100%);opacity:.5;
    transition:all .4s var(--ease);
    object-fit:contain;
}
.partner-item:hover .partner-logo{filter:grayscale(0);opacity:1}

/* ===================
   CERTIFICATIONS – 资质荣誉
   =================== */
.certifications{padding:100px 0 0;background:var(--white)}

/* --- 资质卡片网格 --- */
.cert-cards{
    display:grid;grid-template-columns:repeat(5,1fr);
    gap:1px;background:var(--grey-200);
    border:1px solid var(--grey-200);
}
.cert-card{
    background:var(--white);
    padding:40px 28px;text-align:center;
    transition:background .3s var(--ease);
}
.cert-card:hover{background:var(--grey-50)}
.cert-card-icon{
    width:52px;height:52px;margin:0 auto 20px;
    display:flex;align-items:center;justify-content:center;
    color:var(--red);
    background:rgba(207,10,44,.06);
    border-radius:50%;
    transition:all .3s var(--ease);
}
.cert-card:hover .cert-card-icon{
    background:var(--red);color:var(--white);
}
.cert-card h4{
    font-size:17px;font-weight:700;
    color:var(--grey-900);margin-bottom:8px;
}
.cert-card p{
    font-size:13px;color:var(--grey-400);line-height:1.7;
}

/* --- 证书展示带 --- */
.cert-banner{
    margin-top:80px;padding:72px 0;
    background:var(--grey-900);
}

/* 3D 旋转轮播 */
.cert-carousel{
    position:relative;
    height:480px;
    perspective:1200px;
    overflow:visible;
}
.cert-carousel-track{
    position:relative;
    width:100%;height:100%;
    transform-style:preserve-3d;
    transition:transform .8s var(--ease);
}
.cert-carousel-item{
    position:absolute;
    width:320px;height:100%;
    left:50%;top:0;
    margin-left:-160px;
    text-align:center;
    will-change:transform,opacity;
    transition:transform 1s cubic-bezier(.25,.1,.25,1),
               opacity .8s cubic-bezier(.25,.1,.25,1),
               filter .8s cubic-bezier(.25,.1,.25,1);
}
.cert-carousel-item.active{
    opacity:1;filter:none;z-index:3;
}
.cert-carousel-item.prev,
.cert-carousel-item.next{
    opacity:.5;filter:brightness(.6);z-index:1;
    cursor:pointer;
}
.cert-carousel-item.hidden{
    opacity:0;pointer-events:none;
}

.cert-banner-img{
    background:rgba(255,255,255,.06);
    padding:16px;
    border:1px solid rgba(255,255,255,.08);
    margin-bottom:20px;
    transition:border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.cert-carousel-item.active .cert-banner-img{
    border-color:rgba(207,10,44,.3);
    box-shadow:0 20px 60px rgba(0,0,0,.4);
}
.cert-banner-img img{
    width:100%;height:auto;display:block;
}
.cert-badge{
    display:inline-block;font-size:11px;font-weight:700;
    color:var(--white);background:var(--red);
    padding:4px 12px;letter-spacing:1px;
    margin-bottom:12px;
}
.cert-gallery-info h4{
    font-size:17px;font-weight:700;
    color:var(--white);margin-bottom:8px;
}
.cert-gallery-info p{
    font-size:13px;color:rgba(255,255,255,.4);
    line-height:1.8;
}
.cert-gallery-info{
    opacity:0;transform:translateY(10px);
    transition:all .4s var(--ease) .1s;
}
.cert-carousel-item.active .cert-gallery-info{
    opacity:1;transform:translateY(0);
}

/* 箭头 */
.cert-arrow{
    position:absolute;top:50%;transform:translateY(-80%);
    width:44px;height:44px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    color:var(--white);font-size:24px;
    cursor:pointer;z-index:10;
    transition:all .3s var(--ease);
    display:flex;align-items:center;justify-content:center;
}
.cert-prev{left:0}
.cert-next{right:0}
.cert-arrow:hover{
    background:var(--red);border-color:var(--red);
}

/* 指示点 */
.cert-dots{
    position:absolute;bottom:0;left:50%;
    transform:translateX(-50%);
    display:flex;gap:10px;
}
.cert-dot{
    width:32px;height:2px;border:none;cursor:pointer;
    background:rgba(255,255,255,.2);padding:0;
    transition:all .4s var(--ease);
}
.cert-dot.active{background:var(--red);width:48px}

/* ===================
   CONTACT – 联系我们
   =================== */
.contact{padding:100px 0;background:var(--white)}
.contact-list{margin-top:32px;display:flex;flex-direction:column;gap:20px}
.contact-row{
    display:flex;align-items:flex-start;gap:16px;
    padding:16px 0;border-bottom:1px solid var(--grey-100);
}
.contact-row svg{flex-shrink:0;color:var(--red);margin-top:2px}
.contact-row strong{font-size:14px;display:block;margin-bottom:2px}
.contact-row p{font-size:13px;color:var(--grey-400)}

/* Form */
.split-form{background:var(--grey-50);padding:40px;border:1px solid var(--grey-200)}
.form-2col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.split-form input,
.split-form select,
.split-form textarea{
    width:100%;padding:14px 16px;font-size:14px;
    font-family:var(--font);
    border:1px solid var(--grey-200);background:var(--white);
    color:var(--grey-900);outline:none;
    transition:border-color .3s var(--ease);
}
.split-form select{appearance:none;cursor:pointer}
.split-form textarea{margin-bottom:16px;resize:vertical;min-height:100px}
.split-form input:focus,
.split-form select:focus,
.split-form textarea:focus{border-color:var(--red)}
.split-form input::placeholder,
.split-form textarea::placeholder{color:var(--grey-400)}
.submit-btn{
    width:100%;padding:16px;font-size:15px;font-weight:600;
    background:var(--red);color:var(--white);
    border:none;cursor:pointer;
    transition:background .3s var(--ease);
}
.submit-btn:hover{background:var(--red-dark)}
.form-field{display:flex;flex-direction:column}
.form-field label{
    font-size:13px;font-weight:600;
    color:var(--grey-800);margin-bottom:6px;
    letter-spacing:.3px;
}
.form-field label .required{color:var(--red);font-weight:700}
.form-field select{margin-bottom:0}
.split-form .form-field+.form-field{margin-top:0}
.split-form .form-2col+.form-field,
.split-form .form-field+.form-field:not(.form-2col .form-field){margin-top:16px}

/* ===================
   FOOTER
   =================== */
.footer{background:var(--grey-900);padding:60px 0 0}
.footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
    gap:40px;padding-bottom:40px;
    border-bottom:1px solid rgba(255,255,255,.06);
}
.footer .logo-name{color:var(--white)}
.footer-brand>p{font-size:12px;color:rgba(255,255,255,.3);margin-top:12px}
.footer-col h5{
    font-size:13px;font-weight:700;color:var(--white);
    margin-bottom:16px;
}
.footer-col a{
    display:block;font-size:13px;
    color:rgba(255,255,255,.35);margin-bottom:10px;
    transition:color .3s var(--ease);
}
.footer-col a:hover{color:var(--white)}
.footer-bottom{
    display:flex;justify-content:space-between;
    padding:20px 0;
}
.footer-bottom span{font-size:11px;color:rgba(255,255,255,.2)}

/* ===================
   BACK TO TOP
   =================== */
.btt{
    position:fixed;bottom:32px;right:32px;
    width:44px;height:44px;
    background:var(--grey-900);color:var(--white);
    border:none;cursor:pointer;font-size:18px;
    opacity:0;visibility:hidden;transform:translateY(16px);
    transition:all .3s var(--ease);z-index:999;
}
.btt.visible{opacity:1;visibility:visible;transform:translateY(0)}
.btt:hover{background:var(--red)}

/* ===================
   REVEAL ANIMATION
   =================== */
.reveal{
    opacity:0;transform:translateY(32px);
    transition:opacity .8s var(--ease),transform .8s var(--ease);
}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===================
   RESPONSIVE
   =================== */
@media(max-width:1024px){
    .split{grid-template-columns:1fr;gap:40px}
    .split.reverse{direction:ltr}
    .kpi-row{grid-template-columns:repeat(2,1fr);gap:20px}
    .div-grid{grid-template-columns:repeat(3,1fr)}
    .adv-cards{grid-template-columns:1fr 1fr}
    .adv-card{border-bottom:1px solid rgba(255,255,255,.06)}
    .adv-card:nth-child(2n){border-right:none}
    .prod-grid{grid-template-columns:repeat(3,1fr)}
    .prod-item:nth-child(3){border-right:none}
    .prod-item:nth-child(4){border-right:1px solid var(--grey-200)}
    .mat-row{grid-template-columns:1fr}
    .mat-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.08)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .cert-cards{grid-template-columns:repeat(3,1fr)}
    .cert-carousel-item{width:280px;margin-left:-140px}
}

@media(max-width:768px){
    .container{padding:0 24px}
    .header-inner{padding:0 24px}
    .nav{
        position:fixed;inset:0;background:rgba(0,0,0,.96);
        flex-direction:column;align-items:center;justify-content:center;
        gap:4px;opacity:0;visibility:hidden;
        transition:all .4s var(--ease);
    }
    .nav.open{opacity:1;visibility:visible}
    .nav-link{font-size:18px;color:rgba(255,255,255,.85) !important;padding:14px 24px}
    .nav-link::after{display:none}
    .hamburger{display:block}
    .hero-caption{bottom:100px;padding:0 24px}
    .hero-dots{left:24px;bottom:50px}
    .div-grid{grid-template-columns:1fr}
    .div-card{height:380px}
    .div-card:last-child{grid-column:auto}
    .adv-cards{grid-template-columns:1fr}
    .adv-card{border-right:none}
    .prod-grid{grid-template-columns:1fr 1fr}
    .prod-item:nth-child(odd){border-right:1px solid var(--grey-200)}
    .prod-item:nth-child(even){border-right:none}
    .partner-grid{grid-template-columns:1fr 1fr}
    .partner-item:nth-child(2n){border-right:none}
    .partner-item:nth-child(odd){border-right:1px solid var(--grey-200)}
    .cert-cards{grid-template-columns:repeat(2,1fr)}
    .cert-card:last-child{grid-column:span 2}
    .cert-carousel{height:420px}
    .cert-carousel-item{width:260px;margin-left:-130px}
    .form-2col{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:4px}
}

@media(max-width:480px){
    .kpi-row{grid-template-columns:repeat(2,1fr)}
    .prod-grid{grid-template-columns:1fr}
    .prod-item{border-right:none !important}
    .partner-grid{grid-template-columns:1fr}
    .partner-item{border-right:none !important}
    .cert-cards{grid-template-columns:1fr}
    .cert-card:last-child{grid-column:auto}
    .cert-carousel{height:380px}
    .cert-carousel-item{width:220px;margin-left:-110px}
}

/* ===================
   REDUCED MOTION
   =================== */
@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{
        animation-duration:.01ms !important;
        transition-duration:.01ms !important;
    }
    .hero-img{transform:none !important}
    .js body.page-transition,
    .js body.page-transition.page-ready,
    .js body.page-transition.page-leaving{
        opacity:1;
        transform:none;
    }
}