/* ===== CSS Reset & Variables ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#102e6d;--primary-dark:#0a1f4a;--primary-light:#1a4294;
  --accent:#ed6d1f;--accent-light:#f5923e;
  --bg:#f7f9fc;--white:#fff;
  --text:#2c3e50;--text-light:#6b7b8d;
  --border:#e8ecf1;
  --shadow:0 4px 24px rgba(16,46,109,.08);
  --shadow-lg:0 12px 48px rgba(16,46,109,.12);
  --radius:12px;
  --transition:.3s cubic-bezier(.4,0,.2,1);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);color:var(--text);background:var(--white);line-height:1.7;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1400px;margin:0 auto;padding:0 32px}
.section-padding{padding:100px 0}

/* ===== Typography ===== */
.section-tag{display:inline-block;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:6px 20px;border-radius:20px;font-size:14px;letter-spacing:2px;margin-bottom:16px}
.section-title{font-size:clamp(28px,4vw,42px);font-weight:700;color:var(--primary);margin-bottom:16px;line-height:1.3}
.section-subtitle{font-size:18px;color:var(--text-light);max-width:680px;margin:0 auto 48px;line-height:1.8}
.text-center{text-align:center}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;border:none;transition:var(--transition);letter-spacing:1px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 4px 16px rgba(16,46,109,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(16,46,109,.4)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;box-shadow:0 4px 16px rgba(237,109,31,.3)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(237,109,31,.4)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-white{background:rgba(255,255,255,.15);color:#fff;border:2px solid rgba(255,255,255,.4);backdrop-filter:blur(8px)}
.btn-white:hover{background:#fff;color:var(--primary)}

/* ===== Header ===== */
.header{position:sticky;top:0;left:0;width:100%;z-index:1000;transition:var(--transition);padding:0;background:var(--white);box-shadow:0 2px 20px rgba(0,0,0,.06)}
.header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo-area{display:flex;align-items:center;gap:14px}
.logo-area img{height:44px;width:auto}
.logo-text h1{font-size:20px;font-weight:700;color:var(--primary);line-height:1.2}
.logo-text span{font-size:11px;color:var(--text-light);letter-spacing:1px}
.nav-links{display:flex;gap:6px}
.nav-links a{padding:8px 18px;font-size:15px;font-weight:500;color:var(--text);border-radius:6px;transition:var(--transition);position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--primary);background:rgba(16,46,109,.06)}
.nav-links a.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--accent);border-radius:2px}
.header-cta{padding:10px 24px !important;font-size:14px !important}
.menu-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;z-index:1001}
.menu-toggle span{width:24px;height:2.5px;background:var(--primary);border-radius:2px;transition:var(--transition)}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 50%,var(--primary-light) 100%);overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:80%;height:200%;background:radial-gradient(ellipse,rgba(237,109,31,.15),transparent 60%);animation:heroGlow 8s ease-in-out infinite alternate}
.hero::after{content:'';position:absolute;bottom:0;left:0;width:100%;height:120px;background:linear-gradient(to top,var(--white),transparent)}
@keyframes heroGlow{0%{transform:translate(0,0) scale(1)}100%{transform:translate(-5%,5%) scale(1.1)}}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:60px 60px}
.hero-content{position:relative;z-index:2;max-width:700px;color:#fff;padding:120px 0 80px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:8px 20px;border-radius:30px;font-size:14px;margin-bottom:28px;backdrop-filter:blur(8px)}
.hero-badge .dot{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h2{font-size:clamp(36px,5.5vw,60px);font-weight:800;line-height:1.15;margin-bottom:24px}
.hero h2 .highlight{background:linear-gradient(135deg,var(--accent-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:20px;line-height:1.8;opacity:.85;margin-bottom:40px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:48px;margin-top:60px;padding-top:40px;border-top:1px solid rgba(255,255,255,.15)}
.hero-stat .num{font-size:36px;font-weight:800;color:var(--accent-light)}
.hero-stat .label{font-size:14px;opacity:.7;margin-top:4px}

/* Page banner (non-home pages) */
.page-banner{position:relative;padding:160px 0 80px;background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;overflow:hidden}
.page-banner::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:60px 60px}
.page-banner h1{font-size:clamp(32px,5vw,48px);font-weight:800;margin-bottom:12px;position:relative}
.page-banner p{font-size:18px;opacity:.7;position:relative}
.page-banner .breadcrumb{font-size:14px;opacity:.6;margin-top:20px;position:relative}
.page-banner .breadcrumb a{opacity:1;text-decoration:underline}

/* ===== About ===== */
.about-preview{background:var(--white)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-image{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-image img{width:100%;height:400px;object-fit:cover}
.about-image-badge{position:absolute;bottom:20px;left:20px;background:var(--accent);color:#fff;padding:16px 24px;border-radius:12px;text-align:center}
.about-image-badge .num{font-size:32px;font-weight:800;line-height:1}
.about-image-badge .text{font-size:13px;opacity:.9}
.about-text h3{font-size:28px;color:var(--primary);margin-bottom:20px}
.about-text p{color:var(--text-light);margin-bottom:16px;font-size:16px}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.about-feat{display:flex;align-items:flex-start;gap:12px;padding:16px;background:var(--bg);border-radius:10px;transition:var(--transition)}
.about-feat:hover{background:rgba(16,46,109,.04);transform:translateY(-2px)}
.about-feat .icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:18px}
.about-feat h4{font-size:15px;color:var(--primary);margin-bottom:2px}
.about-feat p{font-size:13px;color:var(--text-light);line-height:1.5}

/* About full page */
.about-intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-intro-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-intro-img img{width:100%;height:auto}
.about-intro-text p{color:var(--text-light);margin-bottom:16px;font-size:16px;line-height:1.8}

/* Mission */
.mission-section{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff}
.mission-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.mission-card{text-align:center;padding:40px 28px;background:rgba(255,255,255,.06);border-radius:var(--radius);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(8px);transition:var(--transition)}
.mission-card:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.mission-card .icon{width:64px;height:64px;background:linear-gradient(135deg,var(--accent),var(--accent-light));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 20px}
.mission-card h3{font-size:22px;margin-bottom:12px}
.mission-card p{font-size:15px;opacity:.8;line-height:1.7}

/* Qualifications */
.quali-section{background:var(--bg)}
.quali-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quali-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}
.quali-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.quali-card img{width:100%;height:200px;object-fit:contain;padding:16px;background:#fafbfc}
.quali-card .info{padding:16px;text-align:center;font-size:14px;font-weight:600;color:var(--primary)}

/* Vision */
.vision-section{background:var(--white)}
.vision-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.vision-card{padding:40px 32px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);transition:var(--transition)}
.vision-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.vision-card .icon{font-size:36px;margin-bottom:16px}
.vision-card h3{font-size:20px;color:var(--primary);margin-bottom:12px}
.vision-card p{font-size:15px;color:var(--text-light);line-height:1.7}

/* ===== Products ===== */
.products{background:var(--bg)}
.product-tabs{display:flex;justify-content:center;gap:12px;margin-bottom:48px;flex-wrap:wrap}
.product-tab{padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:2px solid var(--border);background:var(--white);transition:var(--transition);color:var(--text-light)}
.product-tab:hover,.product-tab.active{border-color:var(--primary);color:var(--primary);background:rgba(16,46,109,.04)}
.product-panel{display:none}
.product-panel.active{display:block}

/* Product hero banner */
.product-hero-banner{position:relative;height:360px;border-radius:var(--radius);overflow:hidden;margin-bottom:48px;background:linear-gradient(135deg,var(--primary-dark),var(--primary))}
.product-hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.4}
.product-hero-banner .overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;padding:48px 60px;color:#fff}
.product-hero-banner h3{font-size:36px;font-weight:700;margin-bottom:12px}
.product-hero-banner p{font-size:18px;opacity:.8;max-width:500px}

/* System components */
.system-components{margin-bottom:60px}
.system-components h3{font-size:28px;color:var(--primary);text-align:center;margin-bottom:40px}
.component-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.component-card{background:var(--white);border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid transparent}
.component-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.component-card .comp-img{width:80px;height:80px;margin:0 auto 16px;border-radius:50%;overflow:hidden;background:var(--bg);display:flex;align-items:center;justify-content:center}
.component-card .comp-img img{width:60px;height:60px;object-fit:contain}
.component-card h4{font-size:18px;color:var(--primary);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--accent)}
.component-card ul{text-align:left}
.component-card li{font-size:14px;color:var(--text-light);padding:6px 0;padding-left:16px;position:relative;line-height:1.5}
.component-card li::before{content:'';position:absolute;left:0;top:14px;width:6px;height:6px;background:var(--accent);border-radius:50%}

/* Product params */
.product-params{background:var(--white);border-radius:var(--radius);padding:48px;box-shadow:var(--shadow)}
.product-params h3{font-size:28px;color:var(--primary);text-align:center;margin-bottom:32px}
.params-images{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.params-images img{border-radius:10px;border:1px solid var(--border);width:100%}

/* Fan showcase */
.fan-showcase{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.fan-image{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);background:linear-gradient(135deg,#f0f4ff,#e8ecf1);padding:24px}
.fan-image img{width:100%;border-radius:8px}
.fan-info h3{font-size:28px;color:var(--primary);margin-bottom:16px}
.fan-info p{color:var(--text-light);margin-bottom:24px;line-height:1.8}
.fan-specs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:28px}
.fan-spec{background:var(--bg);padding:16px;border-radius:10px;text-align:center}
.fan-spec .val{font-size:22px;font-weight:700;color:var(--primary)}
.fan-spec .label{font-size:13px;color:var(--text-light);margin-top:4px}
.fan-features{margin-top:24px}
.fan-features li{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--border);font-size:15px}
.fan-features li::before{content:'✦';color:var(--accent);font-size:14px}

/* Product preview cards on homepage */
.product-preview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-preview-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border);display:block}
.product-preview-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.ppc-img{height:200px;overflow:hidden;background:var(--bg)}
.ppc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ppc-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--bg);color:var(--text-light);font-size:2.5rem}
.product-preview-card:hover .ppc-img img{transform:scale(1.08)}
.ppc-body{padding:20px}
.ppc-body h3{font-size:18px;color:var(--primary);margin-bottom:8px}
.ppc-body p{font-size:14px;color:var(--text-light);margin-bottom:12px;line-height:1.5}
.ppc-link{font-size:14px;color:var(--accent);font-weight:600}

/* ===== Applications ===== */
.applications{background:var(--white)}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.app-preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.app-card{position:relative;border-radius:var(--radius);overflow:hidden;height:280px;cursor:pointer;box-shadow:var(--shadow)}
.app-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.app-card:hover img{transform:scale(1.08)}
.app-card .app-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(16,46,109,.85),rgba(16,46,109,.2) 60%,transparent);display:flex;flex-direction:column;justify-content:flex-end;padding:28px;color:#fff;transition:var(--transition)}
.app-card:hover .app-overlay{background:linear-gradient(to top,rgba(16,46,109,.9),rgba(16,46,109,.4) 60%,rgba(16,46,109,.1))}
.app-card .app-overlay h4{font-size:20px;margin-bottom:6px}
.app-card .app-overlay p{font-size:14px;opacity:.8}
.app-card .app-tag{position:absolute;top:16px;left:16px;background:var(--accent);color:#fff;padding:4px 14px;border-radius:20px;font-size:12px;font-weight:600}

/* App categories */
.app-categories{display:flex;justify-content:center;gap:12px;margin-bottom:40px;flex-wrap:wrap}
.app-cat{padding:10px 24px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;border:2px solid var(--border);background:var(--white);transition:var(--transition);color:var(--text-light)}
.app-cat:hover,.app-cat.active{border-color:var(--primary);color:var(--primary);background:rgba(16,46,109,.04)}

/* App detail text */
.app-detail{margin-top:60px}
.app-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.app-detail-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.app-detail-img img{width:100%}
.app-detail-text h3{font-size:24px;color:var(--primary);margin-bottom:16px}
.app-detail-text p{color:var(--text-light);line-height:1.8}

/* ===== Services ===== */
.services{background:var(--bg)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-card{background:var(--white);border-radius:var(--radius);padding:40px 32px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid transparent;position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transition:var(--transition)}
.service-card:hover::before{transform:scaleX(1)}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--border)}
.service-card .icon{width:72px;height:72px;background:linear-gradient(135deg,rgba(16,46,109,.08),rgba(16,46,109,.03));border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:32px;margin:0 auto 20px}
.service-card h3{font-size:20px;color:var(--primary);margin-bottom:12px}
.service-card p{font-size:15px;color:var(--text-light);line-height:1.7}

/* Service process */
.service-process{margin-top:60px}
.process-steps{display:flex;justify-content:space-between;position:relative;margin-top:40px}
.process-steps::before{content:'';position:absolute;top:40px;left:10%;right:10%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));z-index:0}
.process-step{text-align:center;position:relative;z-index:1;flex:1}
.process-step .step-num{width:80px;height:80px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:800;margin:0 auto 16px;border:4px solid var(--white);box-shadow:var(--shadow)}
.process-step h4{font-size:16px;color:var(--primary);margin-bottom:8px}
.process-step p{font-size:13px;color:var(--text-light);padding:0 12px}

/* ===== News ===== */
.news{background:var(--white)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border)}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card .news-img{height:200px;overflow:hidden;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center}
.news-card .news-img span{font-size:48px;opacity:.3}
.news-card .news-body{padding:24px}
.news-card .news-date{font-size:13px;color:var(--accent);font-weight:600;margin-bottom:8px}
.news-card h3{font-size:18px;color:var(--primary);margin-bottom:10px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:14px;color:var(--text-light);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card .read-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;margin-top:16px;transition:var(--transition)}
.news-card:hover .read-more{color:var(--accent);gap:10px}

/* News detail page */
.news-detail-layout{display:grid;grid-template-columns:2fr 1fr;gap:40px}
.news-article{background:var(--white);border-radius:var(--radius);padding:48px;box-shadow:var(--shadow)}
.news-article h1{font-size:28px;color:var(--primary);margin-bottom:16px;line-height:1.4}
.news-article .meta{font-size:14px;color:var(--text-light);margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.news-article .content{font-size:16px;line-height:2;color:var(--text)}
.news-article .content p{margin-bottom:16px}
.news-sidebar h4{font-size:18px;color:var(--primary);margin-bottom:20px}
.news-sidebar-item{display:block;padding:16px;background:var(--bg);border-radius:10px;margin-bottom:12px;transition:var(--transition)}
.news-sidebar-item:hover{background:rgba(16,46,109,.06)}
.news-sidebar-item .date{font-size:12px;color:var(--accent)}
.news-sidebar-item .title{font-size:14px;color:var(--text);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* Pagination */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:48px}
.pagination a,.pagination span{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:14px;font-weight:600;border:1px solid var(--border);transition:var(--transition)}
.pagination a:hover,.pagination span.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ===== Contact ===== */
.contact{background:var(--bg);color:var(--text)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.contact-info h3{font-size:28px;color:var(--primary);margin-bottom:28px}
.contact-item{display:flex;gap:16px;margin-bottom:28px;align-items:flex-start}
.contact-item .icon{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0;color:#fff}
.contact-item h4{font-size:16px;color:var(--primary);margin-bottom:4px}
.contact-item p{font-size:15px;color:var(--text-light);line-height:1.6}
.contact-form{background:var(--white);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.contact-form h3{font-size:22px;color:var(--primary);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:14px;color:var(--text);margin-bottom:6px;font-weight:500}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:14px 16px;background:var(--white);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:15px;font-family:var(--font);transition:var(--transition)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text-light)}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(16,46,109,.1)}
.form-group textarea{height:120px;resize:vertical}
.form-group select option{color:var(--text);background:var(--white)}
.form-submit{width:100%;padding:16px;background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:var(--transition);font-family:var(--font)}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(237,109,31,.4)}

/* Contact map placeholder */
.contact-map{background:var(--bg);border-radius:var(--radius);padding:40px;text-align:center;margin-top:40px}
.contact-map .map-placeholder{height:300px;background:linear-gradient(135deg,rgba(16,46,109,.05),rgba(16,46,109,.02));border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-light);border:2px dashed var(--border)}

/* ===== CTA ===== */
.cta-section{padding:80px 0;background:var(--bg)}
.cta-box{background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:20px;padding:60px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-50%;right:-30%;width:60%;height:200%;background:radial-gradient(ellipse,rgba(237,109,31,.2),transparent 60%)}
.cta-box h2{font-size:clamp(24px,4vw,36px);font-weight:700;margin-bottom:12px;position:relative}
.cta-box p{font-size:18px;opacity:.8;margin-bottom:28px;position:relative}

/* ===== Footer ===== */
.footer{background:#1a3a5c;color:rgba(255,255,255,.6);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,.08)}
.footer-brand img{height:40px;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.7;margin-bottom:20px}
.footer h4{color:#fff;font-size:16px;margin-bottom:20px}
.footer ul li{margin-bottom:10px}
.footer ul li a{font-size:14px;transition:var(--transition)}
.footer ul li a:hover{color:var(--accent-light)}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;margin-top:0}

/* ===== Back to top ===== */
.back-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border:none;border-radius:50%;font-size:20px;cursor:pointer;opacity:0;transform:translateY(20px);transition:var(--transition);z-index:999;box-shadow:0 4px 16px rgba(16,46,109,.3)}
.back-top.visible{opacity:1;transform:translateY(0)}
.back-top:hover{transform:translateY(-4px)}

/* ===== Animations ===== */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.fade-left{opacity:0;transform:translateX(-30px);transition:opacity .6s ease,transform .6s ease}
.fade-left.visible{opacity:1;transform:translateX(0)}
.fade-right{opacity:0;transform:translateX(30px);transition:opacity .6s ease,transform .6s ease}
.fade-right.visible{opacity:1;transform:translateX(0)}

/* ===== Responsive ===== */
@media(max-width:1400px){
  .container{padding:0 40px}
}
@media(max-width:1200px){
  .container{max-width:100%}
}
@media(max-width:1024px){
  .about-grid,.about-intro-grid,.contact-grid,.app-detail-grid,.news-detail-layout{grid-template-columns:1fr;gap:40px}
  .component-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid,.app-preview-grid{grid-template-columns:repeat(2,1fr)}
  .product-preview-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .process-steps{flex-wrap:wrap;gap:24px}
  .process-steps::before{display:none}
  .process-step{flex:0 0 calc(33% - 16px)}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .section-padding{padding:60px 0}
  .menu-toggle{display:flex}
  .header-cta{display:none !important}
  .nav-links{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:var(--white);flex-direction:column;padding:100px 32px 32px;box-shadow:-4px 0 24px rgba(0,0,0,.1);transition:var(--transition);gap:0}
  .nav-links.open{right:0}
  .nav-links a{padding:14px 16px;font-size:16px;border-bottom:1px solid var(--border)}
  .hero-content{padding:120px 0 60px}
  .hero h2{font-size:32px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .hero-stat .num{font-size:28px}
  .mission-cards,.vision-cards{grid-template-columns:1fr}
  .quali-grid{grid-template-columns:repeat(2,1fr)}
  .component-grid{grid-template-columns:1fr}
  .product-hero-banner{height:240px}
  .product-hero-banner .overlay{padding:28px}
  .product-hero-banner h3{font-size:24px}
  .params-images{grid-template-columns:1fr}
  .app-grid,.app-preview-grid{grid-template-columns:1fr}
  .service-grid,.news-grid{grid-template-columns:1fr}
  .product-preview-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .fan-showcase{grid-template-columns:1fr}
  .process-step{flex:0 0 100%}
  .page-banner{padding:130px 0 60px}
  .cta-box{padding:40px 24px}
}